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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *   Mupen64plus - new_dynarec.c                                           *
 *   Copyright (C) 2009-2010 Ari64                                         *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#include <stdlib.h>
#include <stdint.h> //include for uint64_t
#include <assert.h>

#include "emu_if.h" //emulator interface

#include <sys/mman.h>

#ifdef __i386__
#include "assem_x86.h"
#endif
#ifdef __x86_64__
#include "assem_x64.h"
#endif
#ifdef __arm__
#include "assem_arm.h"
#endif

#define MAXBLOCK 4096
#define MAX_OUTPUT_BLOCK_SIZE 262144
#define CLOCK_DIVIDER 2

struct regstat
{
  signed char regmap_entry[HOST_REGS];
  signed char regmap[HOST_REGS];
  uint64_t was32;
  uint64_t is32;
  uint64_t wasdirty;
  uint64_t dirty;
  uint64_t u;
  uint64_t uu;
  u_int wasconst;
  u_int isconst;
  uint64_t constmap[HOST_REGS];
};

struct ll_entry
{
  u_int vaddr;
  u_int reg32;
  void *addr;
  struct ll_entry *next;
};

  u_int start;
  u_int *source;
  u_int pagelimit;
  char insn[MAXBLOCK][10];
  u_char itype[MAXBLOCK];
  u_char opcode[MAXBLOCK];
  u_char opcode2[MAXBLOCK];
  u_char bt[MAXBLOCK];
  u_char rs1[MAXBLOCK];
  u_char rs2[MAXBLOCK];
  u_char rt1[MAXBLOCK];
  u_char rt2[MAXBLOCK];
  u_char us1[MAXBLOCK];
  u_char us2[MAXBLOCK];
  u_char dep1[MAXBLOCK];
  u_char dep2[MAXBLOCK];
  u_char lt1[MAXBLOCK];
  int imm[MAXBLOCK];
  u_int ba[MAXBLOCK];
  char likely[MAXBLOCK];
  char is_ds[MAXBLOCK];
  char ooo[MAXBLOCK];
  uint64_t unneeded_reg[MAXBLOCK];
  uint64_t unneeded_reg_upper[MAXBLOCK];
  uint64_t branch_unneeded_reg[MAXBLOCK];
  uint64_t branch_unneeded_reg_upper[MAXBLOCK];
  uint64_t p32[MAXBLOCK];
  uint64_t pr32[MAXBLOCK];
  signed char regmap_pre[MAXBLOCK][HOST_REGS];
  signed char regmap[MAXBLOCK][HOST_REGS];
  signed char regmap_entry[MAXBLOCK][HOST_REGS];
  uint64_t constmap[MAXBLOCK][HOST_REGS];
  struct regstat regs[MAXBLOCK];
  struct regstat branch_regs[MAXBLOCK];
  signed char minimum_free_regs[MAXBLOCK];
  u_int needed_reg[MAXBLOCK];
  uint64_t requires_32bit[MAXBLOCK];
  u_int wont_dirty[MAXBLOCK];
  u_int will_dirty[MAXBLOCK];
  int ccadj[MAXBLOCK];
  int slen;
  u_int instr_addr[MAXBLOCK];
  u_int link_addr[MAXBLOCK][3];
  int linkcount;
  u_int stubs[MAXBLOCK*3][8];
  int stubcount;
  u_int literals[1024][2];
  int literalcount;
  int is_delayslot;
  int cop1_usable;
  u_char *out;
  struct ll_entry *jump_in[4096];
  struct ll_entry *jump_out[4096];
  struct ll_entry *jump_dirty[4096];
  u_int hash_table[65536][4]  __attribute__((aligned(16)));
  char shadow[1048576]  __attribute__((aligned(16)));
  void *copy;
  int expirep;
#ifndef PCSX
  u_int using_tlb;
#else
  static const u_int using_tlb=0;
#endif
  static u_int sp_in_mirror;
  u_int stop_after_jal;
  extern u_char restore_candidate[512];
  extern int cycle_count;

  /* registers that may be allocated */
  /* 1-31 gpr */
#define HIREG 32 // hi
#define LOREG 33 // lo
#define FSREG 34 // FPU status (FCSR)
#define CSREG 35 // Coprocessor status
#define CCREG 36 // Cycle count
#define INVCP 37 // Pointer to invalid_code
#define MMREG 38 // Pointer to memory_map
#define ROREG 39 // ram offset (if rdram!=0x80000000)
#define TEMPREG 40
#define FTEMP 40 // FPU temporary register
#define PTEMP 41 // Prefetch temporary register
#define TLREG 42 // TLB mapping offset
#define RHASH 43 // Return address hash
#define RHTBL 44 // Return address hash table address
#define RTEMP 45 // JR/JALR address register
#define MAXREG 45
#define AGEN1 46 // Address generation temporary register
#define AGEN2 47 // Address generation temporary register
#define MGEN1 48 // Maptable address generation temporary register
#define MGEN2 49 // Maptable address generation temporary register
#define BTREG 50 // Branch target temporary register

  /* instruction types */
#define NOP 0     // No operation
#define LOAD 1    // Load
#define STORE 2   // Store
#define LOADLR 3  // Unaligned load
#define STORELR 4 // Unaligned store
#define MOV 5     // Move 
#define ALU 6     // Arithmetic/logic
#define MULTDIV 7 // Multiply/divide
#define SHIFT 8   // Shift by register
#define SHIFTIMM 9// Shift by immediate
#define IMM16 10  // 16-bit immediate
#define RJUMP 11  // Unconditional jump to register
#define UJUMP 12  // Unconditional jump
#define CJUMP 13  // Conditional branch (BEQ/BNE/BGTZ/BLEZ)
#define SJUMP 14  // Conditional branch (regimm format)
#define COP0 15   // Coprocessor 0
#define COP1 16   // Coprocessor 1
#define C1LS 17   // Coprocessor 1 load/store
#define FJUMP 18  // Conditional branch (floating point)
#define FLOAT 19  // Floating point unit
#define FCONV 20  // Convert integer to float
#define FCOMP 21  // Floating point compare (sets FSREG)
#define SYSCALL 22// SYSCALL
#define OTHER 23  // Other
#define SPAN 24   // Branch/delay slot spans 2 pages
#define NI 25     // Not implemented
#define HLECALL 26// PCSX fake opcodes for HLE
#define COP2 27   // Coprocessor 2 move
#define C2LS 28   // Coprocessor 2 load/store
#define C2OP 29   // Coprocessor 2 operation
#define INTCALL 30// Call interpreter to handle rare corner cases

  /* stubs */
#define CC_STUB 1
#define FP_STUB 2
#define LOADB_STUB 3
#define LOADH_STUB 4
#define LOADW_STUB 5
#define LOADD_STUB 6
#define LOADBU_STUB 7
#define LOADHU_STUB 8
#define STOREB_STUB 9
#define STOREH_STUB 10
#define STOREW_STUB 11
#define STORED_STUB 12
#define STORELR_STUB 13
#define INVCODE_STUB 14

  /* branch codes */
#define TAKEN 1
#define NOTTAKEN 2
#define NULLDS 3

// asm linkage
int new_recompile_block(int addr);
void *get_addr_ht(u_int vaddr);
void invalidate_block(u_int block);
void invalidate_addr(u_int addr);
void remove_hash(int vaddr);
void jump_vaddr();
void dyna_linker();
void dyna_linker_ds();
void verify_code();
void verify_code_vm();
void verify_code_ds();
void cc_interrupt();
void fp_exception();
void fp_exception_ds();
void jump_syscall();
void jump_syscall_hle();
void jump_eret();
void jump_hlecall();
void jump_intcall();
void new_dyna_leave();

// TLB
void TLBWI_new();
void TLBWR_new();
void read_nomem_new();
void read_nomemb_new();
void read_nomemh_new();
void read_nomemd_new();
void write_nomem_new();
void write_nomemb_new();
void write_nomemh_new();
void write_nomemd_new();
void write_rdram_new();
void write_rdramb_new();
void write_rdramh_new();
void write_rdramd_new();
extern u_int memory_map[1048576];

// Needed by assembler
void wb_register(signed char r,signed char regmap[],uint64_t dirty,uint64_t is32);
void wb_dirtys(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty);
void wb_needed_dirtys(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty,int addr);
void load_all_regs(signed char i_regmap[]);
void load_needed_regs(signed char i_regmap[],signed char next_regmap[]);
void load_regs_entry(int t);
void load_all_consts(signed char regmap[],int is32,u_int dirty,int i);

int tracedebug=0;

//#define DEBUG_CYCLE_COUNT 1

void nullf() {}
//#define assem_debug printf
//#define inv_debug printf
#define assem_debug nullf
#define inv_debug nullf

static void tlb_hacks()
{
#ifndef DISABLE_TLB
  // Goldeneye hack
  if (strncmp((char *) ROM_HEADER->nom, "GOLDENEYE",9) == 0)
  {
    u_int addr;
    int n;
    switch (ROM_HEADER->Country_code&0xFF) 
    {
      case 0x45: // U
        addr=0x34b30;
        break;                   
      case 0x4A: // J 
        addr=0x34b70;    
        break;    
      case 0x50: // E 
        addr=0x329f0;
        break;                        
      default: 
        // Unknown country code
        addr=0;
        break;
    }
    u_int rom_addr=(u_int)rom;
    #ifdef ROM_COPY
    // Since memory_map is 32-bit, on 64-bit systems the rom needs to be
    // in the lower 4G of memory to use this hack.  Copy it if necessary.
    if((void *)rom>(void *)0xffffffff) {
      munmap(ROM_COPY, 67108864);
      if(mmap(ROM_COPY, 12582912,
              PROT_READ | PROT_WRITE,
              MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS,
              -1, 0) <= 0) {printf("mmap() failed\n");}
      memcpy(ROM_COPY,rom,12582912);
      rom_addr=(u_int)ROM_COPY;
    }
    #endif
    if(addr) {
      for(n=0x7F000;n<0x80000;n++) {
        memory_map[n]=(((u_int)(rom_addr+addr-0x7F000000))>>2)|0x40000000;
      }
    }
  }
#endif
}

static u_int get_page(u_int vaddr)
{
#ifndef PCSX
  u_int page=(vaddr^0x80000000)>>12;
#else
  u_int page=vaddr&~0xe0000000;
  if (page < 0x1000000)
    page &= ~0x0e00000; // RAM mirrors
  page>>=12;
#endif
#ifndef DISABLE_TLB
  if(page>262143&&tlb_LUT_r[vaddr>>12]) page=(tlb_LUT_r[vaddr>>12]^0x80000000)>>12;
#endif
  if(page>2048) page=2048+(page&2047);
  return page;
}

static u_int get_vpage(u_int vaddr)
{
  u_int vpage=(vaddr^0x80000000)>>12;
#ifndef DISABLE_TLB
  if(vpage>262143&&tlb_LUT_r[vaddr>>12]) vpage&=2047; // jump_dirty uses a hash of the virtual address instead
#endif
  if(vpage>2048) vpage=2048+(vpage&2047);
  return vpage;
}

// Get address from virtual address
// This is called from the recompiled JR/JALR instructions
void *get_addr(u_int vaddr)
{
  u_int page=get_page(vaddr);
  u_int vpage=get_vpage(vaddr);
  struct ll_entry *head;
  //printf("TRACE: count=%d next=%d (get_addr %x,page %d)\n",Count,next_interupt,vaddr,page);
  head=jump_in[page];
  while(head!=NULL) {
    if(head->vaddr==vaddr&&head->reg32==0) {
  //printf("TRACE: count=%d next=%d (get_addr match %x: %x)\n",Count,next_interupt,vaddr,(int)head->addr);
      int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
      ht_bin[3]=ht_bin[1];
      ht_bin[2]=ht_bin[0];
      ht_bin[1]=(int)head->addr;
      ht_bin[0]=vaddr;
      return head->addr;
    }
    head=head->next;
  }
  head=jump_dirty[vpage];
  while(head!=NULL) {
    if(head->vaddr==vaddr&&head->reg32==0) {
      //printf("TRACE: count=%d next=%d (get_addr match dirty %x: %x)\n",Count,next_interupt,vaddr,(int)head->addr);
      // Don't restore blocks which are about to expire from the cache
      if((((u_int)head->addr-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2)))
      if(verify_dirty(head->addr)) {
        //printf("restore candidate: %x (%d) d=%d\n",vaddr,page,invalid_code[vaddr>>12]);
        invalid_code[vaddr>>12]=0;
        memory_map[vaddr>>12]|=0x40000000;
        if(vpage<2048) {
#ifndef DISABLE_TLB
          if(tlb_LUT_r[vaddr>>12]) {
            invalid_code[tlb_LUT_r[vaddr>>12]>>12]=0;
            memory_map[tlb_LUT_r[vaddr>>12]>>12]|=0x40000000;
          }
#endif
          restore_candidate[vpage>>3]|=1<<(vpage&7);
        }
        else restore_candidate[page>>3]|=1<<(page&7);
        int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
        if(ht_bin[0]==vaddr) {
          ht_bin[1]=(int)head->addr; // Replace existing entry
        }
        else
        {
          ht_bin[3]=ht_bin[1];
          ht_bin[2]=ht_bin[0];
          ht_bin[1]=(int)head->addr;
          ht_bin[0]=vaddr;
        }
        return head->addr;
      }
    }
    head=head->next;
  }
  //printf("TRACE: count=%d next=%d (get_addr no-match %x)\n",Count,next_interupt,vaddr);
  int r=new_recompile_block(vaddr);
  if(r==0) return get_addr(vaddr);
  // Execute in unmapped page, generate pagefault execption
  Status|=2;
  Cause=(vaddr<<31)|0x8;
  EPC=(vaddr&1)?vaddr-5:vaddr;
  BadVAddr=(vaddr&~1);
  Context=(Context&0xFF80000F)|((BadVAddr>>9)&0x007FFFF0);
  EntryHi=BadVAddr&0xFFFFE000;
  return get_addr_ht(0x80000000);
}
// Look up address in hash table first
void *get_addr_ht(u_int vaddr)
{
  //printf("TRACE: count=%d next=%d (get_addr_ht %x)\n",Count,next_interupt,vaddr);
  int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
  if(ht_bin[0]==vaddr) return (void *)ht_bin[1];
  if(ht_bin[2]==vaddr) return (void *)ht_bin[3];
  return get_addr(vaddr);
}

void *get_addr_32(u_int vaddr,u_int flags)
{
#ifdef FORCE32
  return get_addr(vaddr);
#else
  //printf("TRACE: count=%d next=%d (get_addr_32 %x,flags %x)\n",Count,next_interupt,vaddr,flags);
  int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
  if(ht_bin[0]==vaddr) return (void *)ht_bin[1];
  if(ht_bin[2]==vaddr) return (void *)ht_bin[3];
  u_int page=get_page(vaddr);
  u_int vpage=get_vpage(vaddr);
  struct ll_entry *head;
  head=jump_in[page];
  while(head!=NULL) {
    if(head->vaddr==vaddr&&(head->reg32&flags)==0) {
      //printf("TRACE: count=%d next=%d (get_addr_32 match %x: %x)\n",Count,next_interupt,vaddr,(int)head->addr);
      if(head->reg32==0) {
        int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
        if(ht_bin[0]==-1) {
          ht_bin[1]=(int)head->addr;
          ht_bin[0]=vaddr;
        }else if(ht_bin[2]==-1) {
          ht_bin[3]=(int)head->addr;
          ht_bin[2]=vaddr;
        }
        //ht_bin[3]=ht_bin[1];
        //ht_bin[2]=ht_bin[0];
        //ht_bin[1]=(int)head->addr;
        //ht_bin[0]=vaddr;
      }
      return head->addr;
    }
    head=head->next;
  }
  head=jump_dirty[vpage];
  while(head!=NULL) {
    if(head->vaddr==vaddr&&(head->reg32&flags)==0) {
      //printf("TRACE: count=%d next=%d (get_addr_32 match dirty %x: %x)\n",Count,next_interupt,vaddr,(int)head->addr);
      // Don't restore blocks which are about to expire from the cache
      if((((u_int)head->addr-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2)))
      if(verify_dirty(head->addr)) {
        //printf("restore candidate: %x (%d) d=%d\n",vaddr,page,invalid_code[vaddr>>12]);
        invalid_code[vaddr>>12]=0;
        memory_map[vaddr>>12]|=0x40000000;
        if(vpage<2048) {
#ifndef DISABLE_TLB
          if(tlb_LUT_r[vaddr>>12]) {
            invalid_code[tlb_LUT_r[vaddr>>12]>>12]=0;
            memory_map[tlb_LUT_r[vaddr>>12]>>12]|=0x40000000;
          }
#endif
          restore_candidate[vpage>>3]|=1<<(vpage&7);
        }
        else restore_candidate[page>>3]|=1<<(page&7);
        if(head->reg32==0) {
          int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
          if(ht_bin[0]==-1) {
            ht_bin[1]=(int)head->addr;
            ht_bin[0]=vaddr;
          }else if(ht_bin[2]==-1) {
            ht_bin[3]=(int)head->addr;
            ht_bin[2]=vaddr;
          }
          //ht_bin[3]=ht_bin[1];
          //ht_bin[2]=ht_bin[0];
          //ht_bin[1]=(int)head->addr;
          //ht_bin[0]=vaddr;
        }
        return head->addr;
      }
    }
    head=head->next;
  }
  //printf("TRACE: count=%d next=%d (get_addr_32 no-match %x,flags %x)\n",Count,next_interupt,vaddr,flags);
  int r=new_recompile_block(vaddr);
  if(r==0) return get_addr(vaddr);
  // Execute in unmapped page, generate pagefault execption
  Status|=2;
  Cause=(vaddr<<31)|0x8;
  EPC=(vaddr&1)?vaddr-5:vaddr;
  BadVAddr=(vaddr&~1);
  Context=(Context&0xFF80000F)|((BadVAddr>>9)&0x007FFFF0);
  EntryHi=BadVAddr&0xFFFFE000;
  return get_addr_ht(0x80000000);
#endif
}

void clear_all_regs(signed char regmap[])
{
  int hr;
  for (hr=0;hr<HOST_REGS;hr++) regmap[hr]=-1;
}

signed char get_reg(signed char regmap[],int r)
{
  int hr;
  for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&&regmap[hr]==r) return hr;
  return -1;
}

// Find a register that is available for two consecutive cycles
signed char get_reg2(signed char regmap1[],signed char regmap2[],int r)
{
  int hr;
  for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&&regmap1[hr]==r&&regmap2[hr]==r) return hr;
  return -1;
}

int count_free_regs(signed char regmap[])
{
  int count=0;
  int hr;
  for(hr=0;hr<HOST_REGS;hr++)
  {
    if(hr!=EXCLUDE_REG) {
      if(regmap[hr]<0) count++;
    }
  }
  return count;
}

void dirty_reg(struct regstat *cur,signed char reg)
{
  int hr;
  if(!reg) return;
  for (hr=0;hr<HOST_REGS;hr++) {
    if((cur->regmap[hr]&63)==reg) {
      cur->dirty|=1<<hr;
    }
  }
}

// If we dirty the lower half of a 64 bit register which is now being
// sign-extended, we need to dump the upper half.
// Note: Do this only after completion of the instruction, because
// some instructions may need to read the full 64-bit value even if
// overwriting it (eg SLTI, DSRA32).
static void flush_dirty_uppers(struct regstat *cur)
{
  int hr,reg;
  for (hr=0;hr<HOST_REGS;hr++) {
    if((cur->dirty>>hr)&1) {
      reg=cur->regmap[hr];
      if(reg>=64) 
        if((cur->is32>>(reg&63))&1) cur->regmap[hr]=-1;
    }
  }
}

void set_const(struct regstat *cur,signed char reg,uint64_t value)
{
  int hr;
  if(!reg) return;
  for (hr=0;hr<HOST_REGS;hr++) {
    if(cur->regmap[hr]==reg) {
      cur->isconst|=1<<hr;
      cur->constmap[hr]=value;
    }
    else if((cur->regmap[hr]^64)==reg) {
      cur->isconst|=1<<hr;
      cur->constmap[hr]=value>>32;
    }
  }
}

void clear_const(struct regstat *cur,signed char reg)
{
  int hr;
  if(!reg) return;
  for (hr=0;hr<HOST_REGS;hr++) {
    if((cur->regmap[hr]&63)==reg) {
      cur->isconst&=~(1<<hr);
    }
  }
}

int is_const(struct regstat *cur,signed char reg)
{
  int hr;
  if(!reg) return 1;
  for (hr=0;hr<HOST_REGS;hr++) {
    if((cur->regmap[hr]&63)==reg) {
      return (cur->isconst>>hr)&1;
    }
  }
  return 0;
}
uint64_t get_const(struct regstat *cur,signed char reg)
{
  int hr;
  if(!reg) return 0;
  for (hr=0;hr<HOST_REGS;hr++) {
    if(cur->regmap[hr]==reg) {
      return cur->constmap[hr];
    }
  }
  printf("Unknown constant in r%d\n",reg);
  exit(1);
}

// Least soon needed registers
// Look at the next ten instructions and see which registers
// will be used.  Try not to reallocate these.
void lsn(u_char hsn[], int i, int *preferred_reg)
{
  int j;
  int b=-1;
  for(j=0;j<9;j++)
  {
    if(i+j>=slen) {
      j=slen-i-1;
      break;
    }
    if(itype[i+j]==UJUMP||itype[i+j]==RJUMP||(source[i+j]>>16)==0x1000)
    {
      // Don't go past an unconditonal jump
      j++;
      break;
    }
  }
  for(;j>=0;j--)
  {
    if(rs1[i+j]) hsn[rs1[i+j]]=j;
    if(rs2[i+j]) hsn[rs2[i+j]]=j;
    if(rt1[i+j]) hsn[rt1[i+j]]=j;
    if(rt2[i+j]) hsn[rt2[i+j]]=j;
    if(itype[i+j]==STORE || itype[i+j]==STORELR) {
      // Stores can allocate zero
      hsn[rs1[i+j]]=j;
      hsn[rs2[i+j]]=j;
    }
    // On some architectures stores need invc_ptr
    #if defined(HOST_IMM8)
    if(itype[i+j]==STORE || itype[i+j]==STORELR || (opcode[i+j]&0x3b)==0x39 || (opcode[i+j]&0x3b)==0x3a) {
      hsn[INVCP]=j;
    }
    #endif
    if(i+j>=0&&(itype[i+j]==UJUMP||itype[i+j]==CJUMP||itype[i+j]==SJUMP||itype[i+j]==FJUMP))
    {
      hsn[CCREG]=j;
      b=j;
    }
  }
  if(b>=0)
  {
    if(ba[i+b]>=start && ba[i+b]<(start+slen*4))
    {
      // Follow first branch
      int t=(ba[i+b]-start)>>2;
      j=7-b;if(t+j>=slen) j=slen-t-1;
      for(;j>=0;j--)
      {
        if(rs1[t+j]) if(hsn[rs1[t+j]]>j+b+2) hsn[rs1[t+j]]=j+b+2;
        if(rs2[t+j]) if(hsn[rs2[t+j]]>j+b+2) hsn[rs2[t+j]]=j+b+2;
        //if(rt1[t+j]) if(hsn[rt1[t+j]]>j+b+2) hsn[rt1[t+j]]=j+b+2;
        //if(rt2[t+j]) if(hsn[rt2[t+j]]>j+b+2) hsn[rt2[t+j]]=j+b+2;
      }
    }
    // TODO: preferred register based on backward branch
  }
  // Delay slot should preferably not overwrite branch conditions or cycle count
  if(i>0&&(itype[i-1]==RJUMP||itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==FJUMP)) {
    if(rs1[i-1]) if(hsn[rs1[i-1]]>1) hsn[rs1[i-1]]=1;
    if(rs2[i-1]) if(hsn[rs2[i-1]]>1) hsn[rs2[i-1]]=1;
    hsn[CCREG]=1;
    // ...or hash tables
    hsn[RHASH]=1;
    hsn[RHTBL]=1;
  }
  // Coprocessor load/store needs FTEMP, even if not declared
  if(itype[i]==C1LS||itype[i]==C2LS) {
    hsn[FTEMP]=0;
  }
  // Load L/R also uses FTEMP as a temporary register
  if(itype[i]==LOADLR) {
    hsn[FTEMP]=0;
  }
  // Also SWL/SWR/SDL/SDR
  if(opcode[i]==0x2a||opcode[i]==0x2e||opcode[i]==0x2c||opcode[i]==0x2d) {
    hsn[FTEMP]=0;
  }
  // Don't remove the TLB registers either
  if(itype[i]==LOAD || itype[i]==LOADLR || itype[i]==STORE || itype[i]==STORELR || itype[i]==C1LS || itype[i]==C2LS) {
    hsn[TLREG]=0;
  }
  // Don't remove the miniht registers
  if(itype[i]==UJUMP||itype[i]==RJUMP)
  {
    hsn[RHASH]=0;
    hsn[RHTBL]=0;
  }
}

// We only want to allocate registers if we're going to use them again soon
int needed_again(int r, int i)
{
  int j;
  int b=-1;
  int rn=10;
  int hr;
  u_char hsn[MAXREG+1];
  int preferred_reg;
  
  memset(hsn,10,sizeof(hsn));
  lsn(hsn,i,&preferred_reg);
  
  if(i>0&&(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000))
  {
    if(ba[i-1]<start || ba[i-1]>start+slen*4-4)
      return 0; // Don't need any registers if exiting the block
  }
  for(j=0;j<9;j++)
  {
    if(i+j>=slen) {
      j=slen-i-1;
      break;
    }
    if(itype[i+j]==UJUMP||itype[i+j]==RJUMP||(source[i+j]>>16)==0x1000)
    {
      // Don't go past an unconditonal jump
      j++;
      break;
    }
    if(itype[i+j]==SYSCALL||itype[i+j]==HLECALL||itype[i+j]==INTCALL||((source[i+j]&0xfc00003f)==0x0d))
    {
      break;
    }
  }
  for(;j>=1;j--)
  {
    if(rs1[i+j]==r) rn=j;
    if(rs2[i+j]==r) rn=j;
    if((unneeded_reg[i+j]>>r)&1) rn=10;
    if(i+j>=0&&(itype[i+j]==UJUMP||itype[i+j]==CJUMP||itype[i+j]==SJUMP||itype[i+j]==FJUMP))
    {
      b=j;
    }
  }
  /*
  if(b>=0)
  {
    if(ba[i+b]>=start && ba[i+b]<(start+slen*4))
    {
      // Follow first branch
      int o=rn;
      int t=(ba[i+b]-start)>>2;
      j=7-b;if(t+j>=slen) j=slen-t-1;
      for(;j>=0;j--)
      {
        if(!((unneeded_reg[t+j]>>r)&1)) {
          if(rs1[t+j]==r) if(rn>j+b+2) rn=j+b+2;
          if(rs2[t+j]==r) if(rn>j+b+2) rn=j+b+2;
        }
        else rn=o;
      }
    }
  }*/
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(rn<hsn[hr]) return 1;
    }
  }
  return 0;
}

// Try to match register allocations at the end of a loop with those
// at the beginning
int loop_reg(int i, int r, int hr)
{
  int j,k;
  for(j=0;j<9;j++)
  {
    if(i+j>=slen) {
      j=slen-i-1;
      break;
    }
    if(itype[i+j]==UJUMP||itype[i+j]==RJUMP||(source[i+j]>>16)==0x1000)
    {
      // Don't go past an unconditonal jump
      j++;
      break;
    }
  }
  k=0;
  if(i>0){
    if(itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==FJUMP)
      k--;
  }
  for(;k<j;k++)
  {
    if(r<64&&((unneeded_reg[i+k]>>r)&1)) return hr;
    if(r>64&&((unneeded_reg_upper[i+k]>>r)&1)) return hr;
    if(i+k>=0&&(itype[i+k]==UJUMP||itype[i+k]==CJUMP||itype[i+k]==SJUMP||itype[i+k]==FJUMP))
    {
      if(ba[i+k]>=start && ba[i+k]<(start+i*4))
      {
        int t=(ba[i+k]-start)>>2;
        int reg=get_reg(regs[t].regmap_entry,r);
        if(reg>=0) return reg;
        //reg=get_reg(regs[t+1].regmap_entry,r);
        //if(reg>=0) return reg;
      }
    }
  }
  return hr;
}


// Allocate every register, preserving source/target regs
void alloc_all(struct regstat *cur,int i)
{
  int hr;
  
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(((cur->regmap[hr]&63)!=rs1[i])&&((cur->regmap[hr]&63)!=rs2[i])&&
         ((cur->regmap[hr]&63)!=rt1[i])&&((cur->regmap[hr]&63)!=rt2[i]))
      {
        cur->regmap[hr]=-1;
        cur->dirty&=~(1<<hr);
      }
      // Don't need zeros
      if((cur->regmap[hr]&63)==0)
      {
        cur->regmap[hr]=-1;
        cur->dirty&=~(1<<hr);
      }
    }
  }
}


void div64(int64_t dividend,int64_t divisor)
{
  lo=dividend/divisor;
  hi=dividend%divisor;
  //printf("TRACE: ddiv %8x%8x %8x%8x\n" ,(int)reg[HIREG],(int)(reg[HIREG]>>32)
  //                                     ,(int)reg[LOREG],(int)(reg[LOREG]>>32));
}
void divu64(uint64_t dividend,uint64_t divisor)
{
  lo=dividend/divisor;
  hi=dividend%divisor;
  //printf("TRACE: ddivu %8x%8x %8x%8x\n",(int)reg[HIREG],(int)(reg[HIREG]>>32)
  //                                     ,(int)reg[LOREG],(int)(reg[LOREG]>>32));
}

void mult64(uint64_t m1,uint64_t m2)
{
   unsigned long long int op1, op2, op3, op4;
   unsigned long long int result1, result2, result3, result4;
   unsigned long long int temp1, temp2, temp3, temp4;
   int sign = 0;
   
   if (m1 < 0)
     {
    op2 = -m1;
    sign = 1 - sign;
     }
   else op2 = m1;
   if (m2 < 0)
     {
    op4 = -m2;
    sign = 1 - sign;
     }
   else op4 = m2;
   
   op1 = op2 & 0xFFFFFFFF;
   op2 = (op2 >> 32) & 0xFFFFFFFF;
   op3 = op4 & 0xFFFFFFFF;
   op4 = (op4 >> 32) & 0xFFFFFFFF;
   
   temp1 = op1 * op3;
   temp2 = (temp1 >> 32) + op1 * op4;
   temp3 = op2 * op3;
   temp4 = (temp3 >> 32) + op2 * op4;
   
   result1 = temp1 & 0xFFFFFFFF;
   result2 = temp2 + (temp3 & 0xFFFFFFFF);
   result3 = (result2 >> 32) + temp4;
   result4 = (result3 >> 32);
   
   lo = result1 | (result2 << 32);
   hi = (result3 & 0xFFFFFFFF) | (result4 << 32);
   if (sign)
     {
    hi = ~hi;
    if (!lo) hi++;
    else lo = ~lo + 1;
     }
}

void multu64(uint64_t m1,uint64_t m2)
{
   unsigned long long int op1, op2, op3, op4;
   unsigned long long int result1, result2, result3, result4;
   unsigned long long int temp1, temp2, temp3, temp4;
   
   op1 = m1 & 0xFFFFFFFF;
   op2 = (m1 >> 32) & 0xFFFFFFFF;
   op3 = m2 & 0xFFFFFFFF;
   op4 = (m2 >> 32) & 0xFFFFFFFF;
   
   temp1 = op1 * op3;
   temp2 = (temp1 >> 32) + op1 * op4;
   temp3 = op2 * op3;
   temp4 = (temp3 >> 32) + op2 * op4;
   
   result1 = temp1 & 0xFFFFFFFF;
   result2 = temp2 + (temp3 & 0xFFFFFFFF);
   result3 = (result2 >> 32) + temp4;
   result4 = (result3 >> 32);
   
   lo = result1 | (result2 << 32);
   hi = (result3 & 0xFFFFFFFF) | (result4 << 32);
   
  //printf("TRACE: dmultu %8x%8x %8x%8x\n",(int)reg[HIREG],(int)(reg[HIREG]>>32)
  //                                      ,(int)reg[LOREG],(int)(reg[LOREG]>>32));
}

uint64_t ldl_merge(uint64_t original,uint64_t loaded,u_int bits)
{
  if(bits) {
    original<<=64-bits;
    original>>=64-bits;
    loaded<<=bits;
    original|=loaded;
  }
  else original=loaded;
  return original;
}
uint64_t ldr_merge(uint64_t original,uint64_t loaded,u_int bits)
{
  if(bits^56) {
    original>>=64-(bits^56);
    original<<=64-(bits^56);
    loaded>>=bits^56;
    original|=loaded;
  }
  else original=loaded;
  return original;
}

#ifdef __i386__
#include "assem_x86.c"
#endif
#ifdef __x86_64__
#include "assem_x64.c"
#endif
#ifdef __arm__
#include "assem_arm.c"
#endif

// Add virtual address mapping to linked list
void ll_add(struct ll_entry **head,int vaddr,void *addr)
{
  struct ll_entry *new_entry;
  new_entry=malloc(sizeof(struct ll_entry));
  assert(new_entry!=NULL);
  new_entry->vaddr=vaddr;
  new_entry->reg32=0;
  new_entry->addr=addr;
  new_entry->next=*head;
  *head=new_entry;
}

// Add virtual address mapping for 32-bit compiled block
void ll_add_32(struct ll_entry **head,int vaddr,u_int reg32,void *addr)
{
  ll_add(head,vaddr,addr);
#ifndef FORCE32
  (*head)->reg32=reg32;
#endif
}

// Check if an address is already compiled
// but don't return addresses which are about to expire from the cache
void *check_addr(u_int vaddr)
{
  u_int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
  if(ht_bin[0]==vaddr) {
    if(((ht_bin[1]-MAX_OUTPUT_BLOCK_SIZE-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2)))
      if(isclean(ht_bin[1])) return (void *)ht_bin[1];
  }
  if(ht_bin[2]==vaddr) {
    if(((ht_bin[3]-MAX_OUTPUT_BLOCK_SIZE-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2)))
      if(isclean(ht_bin[3])) return (void *)ht_bin[3];
  }
  u_int page=get_page(vaddr);
  struct ll_entry *head;
  head=jump_in[page];
  while(head!=NULL) {
    if(head->vaddr==vaddr&&head->reg32==0) {
      if((((u_int)head->addr-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2))) {
        // Update existing entry with current address
        if(ht_bin[0]==vaddr) {
          ht_bin[1]=(int)head->addr;
          return head->addr;
        }
        if(ht_bin[2]==vaddr) {
          ht_bin[3]=(int)head->addr;
          return head->addr;
        }
        // Insert into hash table with low priority.
        // Don't evict existing entries, as they are probably
        // addresses that are being accessed frequently.
        if(ht_bin[0]==-1) {
          ht_bin[1]=(int)head->addr;
          ht_bin[0]=vaddr;
        }else if(ht_bin[2]==-1) {
          ht_bin[3]=(int)head->addr;
          ht_bin[2]=vaddr;
        }
        return head->addr;
      }
    }
    head=head->next;
  }
  return 0;
}

void remove_hash(int vaddr)
{
  //printf("remove hash: %x\n",vaddr);
  int *ht_bin=hash_table[(((vaddr)>>16)^vaddr)&0xFFFF];
  if(ht_bin[2]==vaddr) {
    ht_bin[2]=ht_bin[3]=-1;
  }
  if(ht_bin[0]==vaddr) {
    ht_bin[0]=ht_bin[2];
    ht_bin[1]=ht_bin[3];
    ht_bin[2]=ht_bin[3]=-1;
  }
}

void ll_remove_matching_addrs(struct ll_entry **head,int addr,int shift)
{
  struct ll_entry *next;
  while(*head) {
    if(((u_int)((*head)->addr)>>shift)==(addr>>shift) || 
       ((u_int)((*head)->addr-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(addr>>shift))
    {
      inv_debug("EXP: Remove pointer to %x (%x)\n",(int)(*head)->addr,(*head)->vaddr);
      remove_hash((*head)->vaddr);
      next=(*head)->next;
      free(*head);
      *head=next;
    }
    else
    {
      head=&((*head)->next);
    }
  }
}

// Remove all entries from linked list
void ll_clear(struct ll_entry **head)
{
  struct ll_entry *cur;
  struct ll_entry *next;
  if(cur=*head) {
    *head=0;
    while(cur) {
      next=cur->next;
      free(cur);
      cur=next;
    }
  }
}

// Dereference the pointers and remove if it matches
void ll_kill_pointers(struct ll_entry *head,int addr,int shift)
{
  while(head) {
    int ptr=get_pointer(head->addr);
    inv_debug("EXP: Lookup pointer to %x at %x (%x)\n",(int)ptr,(int)head->addr,head->vaddr);
    if(((ptr>>shift)==(addr>>shift)) ||
       (((ptr-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(addr>>shift)))
    {
      inv_debug("EXP: Kill pointer at %x (%x)\n",(int)head->addr,head->vaddr);
      u_int host_addr=(u_int)kill_pointer(head->addr);
      #ifdef __arm__
        needs_clear_cache[(host_addr-(u_int)BASE_ADDR)>>17]|=1<<(((host_addr-(u_int)BASE_ADDR)>>12)&31);
      #endif
    }
    head=head->next;
  }
}

// This is called when we write to a compiled block (see do_invstub)
void invalidate_page(u_int page)
{
  struct ll_entry *head;
  struct ll_entry *next;
  head=jump_in[page];
  jump_in[page]=0;
  while(head!=NULL) {
    inv_debug("INVALIDATE: %x\n",head->vaddr);
    remove_hash(head->vaddr);
    next=head->next;
    free(head);
    head=next;
  }
  head=jump_out[page];
  jump_out[page]=0;
  while(head!=NULL) {
    inv_debug("INVALIDATE: kill pointer to %x (%x)\n",head->vaddr,(int)head->addr);
    u_int host_addr=(u_int)kill_pointer(head->addr);
    #ifdef __arm__
      needs_clear_cache[(host_addr-(u_int)BASE_ADDR)>>17]|=1<<(((host_addr-(u_int)BASE_ADDR)>>12)&31);
    #endif
    next=head->next;
    free(head);
    head=next;
  }
}
void invalidate_block(u_int block)
{
  u_int page=get_page(block<<12);
  u_int vpage=get_vpage(block<<12);
  inv_debug("INVALIDATE: %x (%d)\n",block<<12,page);
  //inv_debug("invalid_code[block]=%d\n",invalid_code[block]);
  u_int first,last;
  first=last=page;
  struct ll_entry *head;
  head=jump_dirty[vpage];
  //printf("page=%d vpage=%d\n",page,vpage);
  while(head!=NULL) {
    u_int start,end;
    if(vpage>2047||(head->vaddr>>12)==block) { // Ignore vaddr hash collision
      get_bounds((int)head->addr,&start,&end);
      //printf("start: %x end: %x\n",start,end);
      if(page<2048&&start>=0x80000000&&end<0x80000000+RAM_SIZE) {
        if(((start-(u_int)rdram)>>12)<=page&&((end-1-(u_int)rdram)>>12)>=page) {
          if((((start-(u_int)rdram)>>12)&2047)<first) first=((start-(u_int)rdram)>>12)&2047;
          if((((end-1-(u_int)rdram)>>12)&2047)>last) last=((end-1-(u_int)rdram)>>12)&2047;
        }
      }
#ifndef DISABLE_TLB
      if(page<2048&&(signed int)start>=(signed int)0xC0000000&&(signed int)end>=(signed int)0xC0000000) {
        if(((start+memory_map[start>>12]-(u_int)rdram)>>12)<=page&&((end-1+memory_map[(end-1)>>12]-(u_int)rdram)>>12)>=page) {
          if((((start+memory_map[start>>12]-(u_int)rdram)>>12)&2047)<first) first=((start+memory_map[start>>12]-(u_int)rdram)>>12)&2047;
          if((((end-1+memory_map[(end-1)>>12]-(u_int)rdram)>>12)&2047)>last) last=((end-1+memory_map[(end-1)>>12]-(u_int)rdram)>>12)&2047;
        }
      }
#endif
    }
    head=head->next;
  }
  //printf("first=%d last=%d\n",first,last);
  invalidate_page(page);
  assert(first+5>page); // NB: this assumes MAXBLOCK<=4096 (4 pages)
  assert(last<page+5);
  // Invalidate the adjacent pages if a block crosses a 4K boundary
  while(first<page) {
    invalidate_page(first);
    first++;
  }
  for(first=page+1;first<last;first++) {
    invalidate_page(first);
  }
  #ifdef __arm__
    do_clear_cache();
  #endif
  
  // Don't trap writes
  invalid_code[block]=1;
#ifdef PCSX
  invalid_code[((u_int)0x80000000>>12)|page]=1;
#endif
#ifndef DISABLE_TLB
  // If there is a valid TLB entry for this page, remove write protect
  if(tlb_LUT_w[block]) {
    assert(tlb_LUT_r[block]==tlb_LUT_w[block]);
    // CHECK: Is this right?
    memory_map[block]=((tlb_LUT_w[block]&0xFFFFF000)-(block<<12)+(unsigned int)rdram-0x80000000)>>2;
    u_int real_block=tlb_LUT_w[block]>>12;
    invalid_code[real_block]=1;
    if(real_block>=0x80000&&real_block<0x80800) memory_map[real_block]=((u_int)rdram-0x80000000)>>2;
  }
  else if(block>=0x80000&&block<0x80800) memory_map[block]=((u_int)rdram-0x80000000)>>2;
#endif

  #ifdef USE_MINI_HT
  memset(mini_ht,-1,sizeof(mini_ht));
  #endif
}
void invalidate_addr(u_int addr)
{
  invalidate_block(addr>>12);
}
// This is called when loading a save state.
// Anything could have changed, so invalidate everything.
void invalidate_all_pages()
{
  u_int page,n;
  for(page=0;page<4096;page++)
    invalidate_page(page);
  for(page=0;page<1048576;page++)
    if(!invalid_code[page]) {
      restore_candidate[(page&2047)>>3]|=1<<(page&7);
      restore_candidate[((page&2047)>>3)+256]|=1<<(page&7);
    }
  #ifdef __arm__
  __clear_cache((void *)BASE_ADDR,(void *)BASE_ADDR+(1<<TARGET_SIZE_2));
  #endif
  #ifdef USE_MINI_HT
  memset(mini_ht,-1,sizeof(mini_ht));
  #endif
  #ifndef DISABLE_TLB
  // TLB
  for(page=0;page<0x100000;page++) {
    if(tlb_LUT_r[page]) {
      memory_map[page]=((tlb_LUT_r[page]&0xFFFFF000)-(page<<12)+(unsigned int)rdram-0x80000000)>>2;
      if(!tlb_LUT_w[page]||!invalid_code[page])
        memory_map[page]|=0x40000000; // Write protect
    }
    else memory_map[page]=-1;
    if(page==0x80000) page=0xC0000;
  }
  tlb_hacks();
  #endif
}

// Add an entry to jump_out after making a link
void add_link(u_int vaddr,void *src)
{
  u_int page=get_page(vaddr);
  inv_debug("add_link: %x -> %x (%d)\n",(int)src,vaddr,page);
  ll_add(jump_out+page,vaddr,src);
  //int ptr=get_pointer(src);
  //inv_debug("add_link: Pointer is to %x\n",(int)ptr);
}

// If a code block was found to be unmodified (bit was set in
// restore_candidate) and it remains unmodified (bit is clear
// in invalid_code) then move the entries for that 4K page from
// the dirty list to the clean list.
void clean_blocks(u_int page)
{
  struct ll_entry *head;
  inv_debug("INV: clean_blocks page=%d\n",page);
  head=jump_dirty[page];
  while(head!=NULL) {
    if(!invalid_code[head->vaddr>>12]) {
      // Don't restore blocks which are about to expire from the cache
      if((((u_int)head->addr-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2))) {
        u_int start,end;
        if(verify_dirty((int)head->addr)) {
          //printf("Possibly Restore %x (%x)\n",head->vaddr, (int)head->addr);
          u_int i;
          u_int inv=0;
          get_bounds((int)head->addr,&start,&end);
          if(start-(u_int)rdram<RAM_SIZE) {
            for(i=(start-(u_int)rdram+0x80000000)>>12;i<=(end-1-(u_int)rdram+0x80000000)>>12;i++) {
              inv|=invalid_code[i];
            }
          }
          if((signed int)head->vaddr>=(signed int)0xC0000000) {
            u_int addr = (head->vaddr+(memory_map[head->vaddr>>12]<<2));
            //printf("addr=%x start=%x end=%x\n",addr,start,end);
            if(addr<start||addr>=end) inv=1;
          }
          else if((signed int)head->vaddr>=(signed int)0x80000000+RAM_SIZE) {
            inv=1;
          }
          if(!inv) {
            void * clean_addr=(void *)get_clean_addr((int)head->addr);
            if((((u_int)clean_addr-(u_int)out)<<(32-TARGET_SIZE_2))>0x60000000+(MAX_OUTPUT_BLOCK_SIZE<<(32-TARGET_SIZE_2))) {
              u_int ppage=page;
#ifndef DISABLE_TLB
              if(page<2048&&tlb_LUT_r[head->vaddr>>12]) ppage=(tlb_LUT_r[head->vaddr>>12]^0x80000000)>>12;
#endif
              inv_debug("INV: Restored %x (%x/%x)\n",head->vaddr, (int)head->addr, (int)clean_addr);
              //printf("page=%x, addr=%x\n",page,head->vaddr);
              //assert(head->vaddr>>12==(page|0x80000));
              ll_add_32(jump_in+ppage,head->vaddr,head->reg32,clean_addr);
              int *ht_bin=hash_table[((head->vaddr>>16)^head->vaddr)&0xFFFF];
              if(!head->reg32) {
                if(ht_bin[0]==head->vaddr) {
                  ht_bin[1]=(int)clean_addr; // Replace existing entry
                }
                if(ht_bin[2]==head->vaddr) {
                  ht_bin[3]=(int)clean_addr; // Replace existing entry
                }
              }
            }
          }
        }
      }
    }
    head=head->next;
  }
}


void mov_alloc(struct regstat *current,int i)
{
  // Note: Don't need to actually alloc the source registers
  if((~current->is32>>rs1[i])&1) {
    //alloc_reg64(current,i,rs1[i]);
    alloc_reg64(current,i,rt1[i]);
    current->is32&=~(1LL<<rt1[i]);
  } else {
    //alloc_reg(current,i,rs1[i]);
    alloc_reg(current,i,rt1[i]);
    current->is32|=(1LL<<rt1[i]);
  }
  clear_const(current,rs1[i]);
  clear_const(current,rt1[i]);
  dirty_reg(current,rt1[i]);
}

void shiftimm_alloc(struct regstat *current,int i)
{
  clear_const(current,rs1[i]);
  clear_const(current,rt1[i]);
  if(opcode2[i]<=0x3) // SLL/SRL/SRA
  {
    if(rt1[i]) {
      if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
      else lt1[i]=rs1[i];
      alloc_reg(current,i,rt1[i]);
      current->is32|=1LL<<rt1[i];
      dirty_reg(current,rt1[i]);
    }
  }
  if(opcode2[i]>=0x38&&opcode2[i]<=0x3b) // DSLL/DSRL/DSRA
  {
    if(rt1[i]) {
      if(rs1[i]) alloc_reg64(current,i,rs1[i]);
      alloc_reg64(current,i,rt1[i]);
      current->is32&=~(1LL<<rt1[i]);
      dirty_reg(current,rt1[i]);
    }
  }
  if(opcode2[i]==0x3c) // DSLL32
  {
    if(rt1[i]) {
      if(rs1[i]) alloc_reg(current,i,rs1[i]);
      alloc_reg64(current,i,rt1[i]);
      current->is32&=~(1LL<<rt1[i]);
      dirty_reg(current,rt1[i]);
    }
  }
  if(opcode2[i]==0x3e) // DSRL32
  {
    if(rt1[i]) {
      alloc_reg64(current,i,rs1[i]);
      if(imm[i]==32) {
        alloc_reg64(current,i,rt1[i]);
        current->is32&=~(1LL<<rt1[i]);
      } else {
        alloc_reg(current,i,rt1[i]);
        current->is32|=1LL<<rt1[i];
      }
      dirty_reg(current,rt1[i]);
    }
  }
  if(opcode2[i]==0x3f) // DSRA32
  {
    if(rt1[i]) {
      alloc_reg64(current,i,rs1[i]);
      alloc_reg(current,i,rt1[i]);
      current->is32|=1LL<<rt1[i];
      dirty_reg(current,rt1[i]);
    }
  }
}

void shift_alloc(struct regstat *current,int i)
{
  if(rt1[i]) {
    if(opcode2[i]<=0x07) // SLLV/SRLV/SRAV
    {
      if(rs1[i]) alloc_reg(current,i,rs1[i]);
      if(rs2[i]) alloc_reg(current,i,rs2[i]);
      alloc_reg(current,i,rt1[i]);
      if(rt1[i]==rs2[i]) {
        alloc_reg_temp(current,i,-1);
        minimum_free_regs[i]=1;
      }
      current->is32|=1LL<<rt1[i];
    } else { // DSLLV/DSRLV/DSRAV
      if(rs1[i]) alloc_reg64(current,i,rs1[i]);
      if(rs2[i]) alloc_reg(current,i,rs2[i]);
      alloc_reg64(current,i,rt1[i]);
      current->is32&=~(1LL<<rt1[i]);
      if(opcode2[i]==0x16||opcode2[i]==0x17) // DSRLV and DSRAV need a temporary register
      {
        alloc_reg_temp(current,i,-1);
        minimum_free_regs[i]=1;
      }
    }
    clear_const(current,rs1[i]);
    clear_const(current,rs2[i]);
    clear_const(current,rt1[i]);
    dirty_reg(current,rt1[i]);
  }
}

void alu_alloc(struct regstat *current,int i)
{
  if(opcode2[i]>=0x20&&opcode2[i]<=0x23) { // ADD/ADDU/SUB/SUBU
    if(rt1[i]) {
      if(rs1[i]&&rs2[i]) {
        alloc_reg(current,i,rs1[i]);
        alloc_reg(current,i,rs2[i]);
      }
      else {
        if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
        if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg(current,i,rs2[i]);
      }
      alloc_reg(current,i,rt1[i]);
    }
    current->is32|=1LL<<rt1[i];
  }
  if(opcode2[i]==0x2a||opcode2[i]==0x2b) { // SLT/SLTU
    if(rt1[i]) {
      if(!((current->is32>>rs1[i])&(current->is32>>rs2[i])&1))
      {
        alloc_reg64(current,i,rs1[i]);
        alloc_reg64(current,i,rs2[i]);
        alloc_reg(current,i,rt1[i]);
      } else {
        alloc_reg(current,i,rs1[i]);
        alloc_reg(current,i,rs2[i]);
        alloc_reg(current,i,rt1[i]);
      }
    }
    current->is32|=1LL<<rt1[i];
  }
  if(opcode2[i]>=0x24&&opcode2[i]<=0x27) { // AND/OR/XOR/NOR
    if(rt1[i]) {
      if(rs1[i]&&rs2[i]) {
        alloc_reg(current,i,rs1[i]);
        alloc_reg(current,i,rs2[i]);
      }
      else
      {
        if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
        if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg(current,i,rs2[i]);
      }
      alloc_reg(current,i,rt1[i]);
      if(!((current->is32>>rs1[i])&(current->is32>>rs2[i])&1))
      {
        if(!((current->uu>>rt1[i])&1)) {
          alloc_reg64(current,i,rt1[i]);
        }
        if(get_reg(current->regmap,rt1[i]|64)>=0) {
          if(rs1[i]&&rs2[i]) {
            alloc_reg64(current,i,rs1[i]);
            alloc_reg64(current,i,rs2[i]);
          }
          else
          {
            // Is is really worth it to keep 64-bit values in registers?
            #ifdef NATIVE_64BIT
            if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg64(current,i,rs1[i]);
            if(rs2[i]&&needed_again(rs2[i],i)) alloc_reg64(current,i,rs2[i]);
            #endif
          }
        }
        current->is32&=~(1LL<<rt1[i]);
      } else {
        current->is32|=1LL<<rt1[i];
      }
    }
  }
  if(opcode2[i]>=0x2c&&opcode2[i]<=0x2f) { // DADD/DADDU/DSUB/DSUBU
    if(rt1[i]) {
      if(rs1[i]&&rs2[i]) {
        if(!((current->uu>>rt1[i])&1)||get_reg(current->regmap,rt1[i]|64)>=0) {
          alloc_reg64(current,i,rs1[i]);
          alloc_reg64(current,i,rs2[i]);
          alloc_reg64(current,i,rt1[i]);
        } else {
          alloc_reg(current,i,rs1[i]);
          alloc_reg(current,i,rs2[i]);
          alloc_reg(current,i,rt1[i]);
        }
      }
      else {
        alloc_reg(current,i,rt1[i]);
        if(!((current->uu>>rt1[i])&1)||get_reg(current->regmap,rt1[i]|64)>=0) {
          // DADD used as move, or zeroing
          // If we have a 64-bit source, then make the target 64 bits too
          if(rs1[i]&&!((current->is32>>rs1[i])&1)) {
            if(get_reg(current->regmap,rs1[i])>=0) alloc_reg64(current,i,rs1[i]);
            alloc_reg64(current,i,rt1[i]);
          } else if(rs2[i]&&!((current->is32>>rs2[i])&1)) {
            if(get_reg(current->regmap,rs2[i])>=0) alloc_reg64(current,i,rs2[i]);
            alloc_reg64(current,i,rt1[i]);
          }
          if(opcode2[i]>=0x2e&&rs2[i]) {
            // DSUB used as negation - 64-bit result
            // If we have a 32-bit register, extend it to 64 bits
            if(get_reg(current->regmap,rs2[i])>=0) alloc_reg64(current,i,rs2[i]);
            alloc_reg64(current,i,rt1[i]);
          }
        }
      }
      if(rs1[i]&&rs2[i]) {
        current->is32&=~(1LL<<rt1[i]);
      } else if(rs1[i]) {
        current->is32&=~(1LL<<rt1[i]);
        if((current->is32>>rs1[i])&1)
          current->is32|=1LL<<rt1[i];
      } else if(rs2[i]) {
        current->is32&=~(1LL<<rt1[i]);
        if((current->is32>>rs2[i])&1)
          current->is32|=1LL<<rt1[i];
      } else {
        current->is32|=1LL<<rt1[i];
      }
    }
  }
  clear_const(current,rs1[i]);
  clear_const(current,rs2[i]);
  clear_const(current,rt1[i]);
  dirty_reg(current,rt1[i]);
}

void imm16_alloc(struct regstat *current,int i)
{
  if(rs1[i]&&needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
  else lt1[i]=rs1[i];
  if(rt1[i]) alloc_reg(current,i,rt1[i]);
  if(opcode[i]==0x18||opcode[i]==0x19) { // DADDI/DADDIU
    current->is32&=~(1LL<<rt1[i]);
    if(!((current->uu>>rt1[i])&1)||get_reg(current->regmap,rt1[i]|64)>=0) {
      // TODO: Could preserve the 32-bit flag if the immediate is zero
      alloc_reg64(current,i,rt1[i]);
      alloc_reg64(current,i,rs1[i]);
    }
    clear_const(current,rs1[i]);
    clear_const(current,rt1[i]);
  }
  else if(opcode[i]==0x0a||opcode[i]==0x0b) { // SLTI/SLTIU
    if((~current->is32>>rs1[i])&1) alloc_reg64(current,i,rs1[i]);
    current->is32|=1LL<<rt1[i];
    clear_const(current,rs1[i]);
    clear_const(current,rt1[i]);
  }
  else if(opcode[i]>=0x0c&&opcode[i]<=0x0e) { // ANDI/ORI/XORI
    if(((~current->is32>>rs1[i])&1)&&opcode[i]>0x0c) {
      if(rs1[i]!=rt1[i]) {
        if(needed_again(rs1[i],i)) alloc_reg64(current,i,rs1[i]);
        alloc_reg64(current,i,rt1[i]);
        current->is32&=~(1LL<<rt1[i]);
      }
    }
    else current->is32|=1LL<<rt1[i]; // ANDI clears upper bits
    if(is_const(current,rs1[i])) {
      int v=get_const(current,rs1[i]);
      if(opcode[i]==0x0c) set_const(current,rt1[i],v&imm[i]);
      if(opcode[i]==0x0d) set_const(current,rt1[i],v|imm[i]);
      if(opcode[i]==0x0e) set_const(current,rt1[i],v^imm[i]);
    }
    else clear_const(current,rt1[i]);
  }
  else if(opcode[i]==0x08||opcode[i]==0x09) { // ADDI/ADDIU
    if(is_const(current,rs1[i])) {
      int v=get_const(current,rs1[i]);
      set_const(current,rt1[i],v+imm[i]);
    }
    else clear_const(current,rt1[i]);
    current->is32|=1LL<<rt1[i];
  }
  else {
    set_const(current,rt1[i],((long long)((short)imm[i]))<<16); // LUI
    current->is32|=1LL<<rt1[i];
  }
  dirty_reg(current,rt1[i]);
}

void load_alloc(struct regstat *current,int i)
{
  clear_const(current,rt1[i]);
  //if(rs1[i]!=rt1[i]&&needed_again(rs1[i],i)) clear_const(current,rs1[i]); // Does this help or hurt?
  if(!rs1[i]) current->u&=~1LL; // Allow allocating r0 if it's the source register
  if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
  if(rt1[i]) {
    alloc_reg(current,i,rt1[i]);
    if(get_reg(current->regmap,rt1[i])<0) {
      // dummy load, but we still need a register to calculate the address
      alloc_reg_temp(current,i,-1);
      minimum_free_regs[i]=1;
    }
    if(opcode[i]==0x27||opcode[i]==0x37) // LWU/LD
    {
      current->is32&=~(1LL<<rt1[i]);
      alloc_reg64(current,i,rt1[i]);
    }
    else if(opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR
    {
      current->is32&=~(1LL<<rt1[i]);
      alloc_reg64(current,i,rt1[i]);
      alloc_all(current,i);
      alloc_reg64(current,i,FTEMP);
      minimum_free_regs[i]=HOST_REGS;
    }
    else current->is32|=1LL<<rt1[i];
    dirty_reg(current,rt1[i]);
    // If using TLB, need a register for pointer to the mapping table
    if(using_tlb) alloc_reg(current,i,TLREG);
    // LWL/LWR need a temporary register for the old value
    if(opcode[i]==0x22||opcode[i]==0x26)
    {
      alloc_reg(current,i,FTEMP);
      alloc_reg_temp(current,i,-1);
      minimum_free_regs[i]=1;
    }
  }
  else
  {
    // Load to r0 (dummy load)
    // but we still need a register to calculate the address
    if(opcode[i]==0x22||opcode[i]==0x26)
    {
      alloc_reg(current,i,FTEMP); // LWL/LWR need another temporary
    }
    alloc_reg_temp(current,i,-1);
    minimum_free_regs[i]=1;
    if(opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR
    {
      alloc_all(current,i);
      alloc_reg64(current,i,FTEMP);
      minimum_free_regs[i]=HOST_REGS;
    }
  }
}

void store_alloc(struct regstat *current,int i)
{
  clear_const(current,rs2[i]);
  if(!(rs2[i])) current->u&=~1LL; // Allow allocating r0 if necessary
  if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
  alloc_reg(current,i,rs2[i]);
  if(opcode[i]==0x2c||opcode[i]==0x2d||opcode[i]==0x3f) { // 64-bit SDL/SDR/SD
    alloc_reg64(current,i,rs2[i]);
    if(rs2[i]) alloc_reg(current,i,FTEMP);
  }
  // If using TLB, need a register for pointer to the mapping table
  if(using_tlb) alloc_reg(current,i,TLREG);
  #if defined(HOST_IMM8)
  // On CPUs without 32-bit immediates we need a pointer to invalid_code
  else alloc_reg(current,i,INVCP);
  #endif
  if(opcode[i]==0x2a||opcode[i]==0x2e||opcode[i]==0x2c||opcode[i]==0x2d) { // SWL/SWL/SDL/SDR
    alloc_reg(current,i,FTEMP);
  }
  // We need a temporary register for address generation
  alloc_reg_temp(current,i,-1);
  minimum_free_regs[i]=1;
}

void c1ls_alloc(struct regstat *current,int i)
{
  //clear_const(current,rs1[i]); // FIXME
  clear_const(current,rt1[i]);
  if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
  alloc_reg(current,i,CSREG); // Status
  alloc_reg(current,i,FTEMP);
  if(opcode[i]==0x35||opcode[i]==0x3d) { // 64-bit LDC1/SDC1
    alloc_reg64(current,i,FTEMP);
  }
  // If using TLB, need a register for pointer to the mapping table
  if(using_tlb) alloc_reg(current,i,TLREG);
  #if defined(HOST_IMM8)
  // On CPUs without 32-bit immediates we need a pointer to invalid_code
  else if((opcode[i]&0x3b)==0x39) // SWC1/SDC1
    alloc_reg(current,i,INVCP);
  #endif
  // We need a temporary register for address generation
  alloc_reg_temp(current,i,-1);
}

void c2ls_alloc(struct regstat *current,int i)
{
  clear_const(current,rt1[i]);
  if(needed_again(rs1[i],i)) alloc_reg(current,i,rs1[i]);
  alloc_reg(current,i,FTEMP);
  // If using TLB, need a register for pointer to the mapping table
  if(using_tlb) alloc_reg(current,i,TLREG);
  #if defined(HOST_IMM8)
  // On CPUs without 32-bit immediates we need a pointer to invalid_code
  else if((opcode[i]&0x3b)==0x3a) // SWC2/SDC2
    alloc_reg(current,i,INVCP);
  #endif
  // We need a temporary register for address generation
  alloc_reg_temp(current,i,-1);
  minimum_free_regs[i]=1;
}

#ifndef multdiv_alloc
void multdiv_alloc(struct regstat *current,int i)
{
  //  case 0x18: MULT
  //  case 0x19: MULTU
  //  case 0x1A: DIV
  //  case 0x1B: DIVU
  //  case 0x1C: DMULT
  //  case 0x1D: DMULTU
  //  case 0x1E: DDIV
  //  case 0x1F: DDIVU
  clear_const(current,rs1[i]);
  clear_const(current,rs2[i]);
  if(rs1[i]&&rs2[i])
  {
    if((opcode2[i]&4)==0) // 32-bit
    {
      current->u&=~(1LL<<HIREG);
      current->u&=~(1LL<<LOREG);
      alloc_reg(current,i,HIREG);
      alloc_reg(current,i,LOREG);
      alloc_reg(current,i,rs1[i]);
      alloc_reg(current,i,rs2[i]);
      current->is32|=1LL<<HIREG;
      current->is32|=1LL<<LOREG;
      dirty_reg(current,HIREG);
      dirty_reg(current,LOREG);
    }
    else // 64-bit
    {
      current->u&=~(1LL<<HIREG);
      current->u&=~(1LL<<LOREG);
      current->uu&=~(1LL<<HIREG);
      current->uu&=~(1LL<<LOREG);
      alloc_reg64(current,i,HIREG);
      //if(HOST_REGS>10) alloc_reg64(current,i,LOREG);
      alloc_reg64(current,i,rs1[i]);
      alloc_reg64(current,i,rs2[i]);
      alloc_all(current,i);
      current->is32&=~(1LL<<HIREG);
      current->is32&=~(1LL<<LOREG);
      dirty_reg(current,HIREG);
      dirty_reg(current,LOREG);
      minimum_free_regs[i]=HOST_REGS;
    }
  }
  else
  {
    // Multiply by zero is zero.
    // MIPS does not have a divide by zero exception.
    // The result is undefined, we return zero.
    alloc_reg(current,i,HIREG);
    alloc_reg(current,i,LOREG);
    current->is32|=1LL<<HIREG;
    current->is32|=1LL<<LOREG;
    dirty_reg(current,HIREG);
    dirty_reg(current,LOREG);
  }
}
#endif

void cop0_alloc(struct regstat *current,int i)
{
  if(opcode2[i]==0) // MFC0
  {
    if(rt1[i]) {
      clear_const(current,rt1[i]);
      alloc_all(current,i);
      alloc_reg(current,i,rt1[i]);
      current->is32|=1LL<<rt1[i];
      dirty_reg(current,rt1[i]);
    }
  }
  else if(opcode2[i]==4) // MTC0
  {
    if(rs1[i]){
      clear_const(current,rs1[i]);
      alloc_reg(current,i,rs1[i]);
      alloc_all(current,i);
    }
    else {
      alloc_all(current,i); // FIXME: Keep r0
      current->u&=~1LL;
      alloc_reg(current,i,0);
    }
  }
  else
  {
    // TLBR/TLBWI/TLBWR/TLBP/ERET
    assert(opcode2[i]==0x10);
    alloc_all(current,i);
  }
  minimum_free_regs[i]=HOST_REGS;
}

void cop1_alloc(struct regstat *current,int i)
{
  alloc_reg(current,i,CSREG); // Load status
  if(opcode2[i]<3) // MFC1/DMFC1/CFC1
  {
    if(rt1[i]){
      clear_const(current,rt1[i]);
      if(opcode2[i]==1) {
        alloc_reg64(current,i,rt1[i]); // DMFC1
        current->is32&=~(1LL<<rt1[i]);
      }else{
        alloc_reg(current,i,rt1[i]); // MFC1/CFC1
        current->is32|=1LL<<rt1[i];
      }
      dirty_reg(current,rt1[i]);
    }
    alloc_reg_temp(current,i,-1);
  }
  else if(opcode2[i]>3) // MTC1/DMTC1/CTC1
  {
    if(rs1[i]){
      clear_const(current,rs1[i]);
      if(opcode2[i]==5)
        alloc_reg64(current,i,rs1[i]); // DMTC1
      else
        alloc_reg(current,i,rs1[i]); // MTC1/CTC1
      alloc_reg_temp(current,i,-1);
    }
    else {
      current->u&=~1LL;
      alloc_reg(current,i,0);
      alloc_reg_temp(current,i,-1);
    }
  }
  minimum_free_regs[i]=1;
}
void fconv_alloc(struct regstat *current,int i)
{
  alloc_reg(current,i,CSREG); // Load status
  alloc_reg_temp(current,i,-1);
  minimum_free_regs[i]=1;
}
void float_alloc(struct regstat *current,int i)
{
  alloc_reg(current,i,CSREG); // Load status
  alloc_reg_temp(current,i,-1);
  minimum_free_regs[i]=1;
}
void c2op_alloc(struct regstat *current,int i)
{
  alloc_reg_temp(current,i,-1);
}
void fcomp_alloc(struct regstat *current,int i)
{
  alloc_reg(current,i,CSREG); // Load status
  alloc_reg(current,i,FSREG); // Load flags
  dirty_reg(current,FSREG); // Flag will be modified
  alloc_reg_temp(current,i,-1);
  minimum_free_regs[i]=1;
}

void syscall_alloc(struct regstat *current,int i)
{
  alloc_cc(current,i);
  dirty_reg(current,CCREG);
  alloc_all(current,i);
  minimum_free_regs[i]=HOST_REGS;
  current->isconst=0;
}

void delayslot_alloc(struct regstat *current,int i)
{
  switch(itype[i]) {
    case UJUMP:
    case CJUMP:
    case SJUMP:
    case RJUMP:
    case FJUMP:
    case SYSCALL:
    case HLECALL:
    case SPAN:
      assem_debug("jump in the delay slot.  this shouldn't happen.\n");//exit(1);
      printf("Disabled speculative precompilation\n");
      stop_after_jal=1;
      break;
    case IMM16:
      imm16_alloc(current,i);
      break;
    case LOAD:
    case LOADLR:
      load_alloc(current,i);
      break;
    case STORE:
    case STORELR:
      store_alloc(current,i);
      break;
    case ALU:
      alu_alloc(current,i);
      break;
    case SHIFT:
      shift_alloc(current,i);
      break;
    case MULTDIV:
      multdiv_alloc(current,i);
      break;
    case SHIFTIMM:
      shiftimm_alloc(current,i);
      break;
    case MOV:
      mov_alloc(current,i);
      break;
    case COP0:
      cop0_alloc(current,i);
      break;
    case COP1:
    case COP2:
      cop1_alloc(current,i);
      break;
    case C1LS:
      c1ls_alloc(current,i);
      break;
    case C2LS:
      c2ls_alloc(current,i);
      break;
    case FCONV:
      fconv_alloc(current,i);
      break;
    case FLOAT:
      float_alloc(current,i);
      break;
    case FCOMP:
      fcomp_alloc(current,i);
      break;
    case C2OP:
      c2op_alloc(current,i);
      break;
  }
}

// Special case where a branch and delay slot span two pages in virtual memory
static void pagespan_alloc(struct regstat *current,int i)
{
  current->isconst=0;
  current->wasconst=0;
  regs[i].wasconst=0;
  minimum_free_regs[i]=HOST_REGS;
  alloc_all(current,i);
  alloc_cc(current,i);
  dirty_reg(current,CCREG);
  if(opcode[i]==3) // JAL
  {
    alloc_reg(current,i,31);
    dirty_reg(current,31);
  }
  if(opcode[i]==0&&(opcode2[i]&0x3E)==8) // JR/JALR
  {
    alloc_reg(current,i,rs1[i]);
    if (rt1[i]!=0) {
      alloc_reg(current,i,rt1[i]);
      dirty_reg(current,rt1[i]);
    }
  }
  if((opcode[i]&0x2E)==4) // BEQ/BNE/BEQL/BNEL
  {
    if(rs1[i]) alloc_reg(current,i,rs1[i]);
    if(rs2[i]) alloc_reg(current,i,rs2[i]);
    if(!((current->is32>>rs1[i])&(current->is32>>rs2[i])&1))
    {
      if(rs1[i]) alloc_reg64(current,i,rs1[i]);
      if(rs2[i]) alloc_reg64(current,i,rs2[i]);
    }
  }
  else
  if((opcode[i]&0x2E)==6) // BLEZ/BGTZ/BLEZL/BGTZL
  {
    if(rs1[i]) alloc_reg(current,i,rs1[i]);
    if(!((current->is32>>rs1[i])&1))
    {
      if(rs1[i]) alloc_reg64(current,i,rs1[i]);
    }
  }
  else
  if(opcode[i]==0x11) // BC1
  {
    alloc_reg(current,i,FSREG);
    alloc_reg(current,i,CSREG);
  }
  //else ...
}

add_stub(int type,int addr,int retaddr,int a,int b,int c,int d,int e)
{
  stubs[stubcount][0]=type;
  stubs[stubcount][1]=addr;
  stubs[stubcount][2]=retaddr;
  stubs[stubcount][3]=a;
  stubs[stubcount][4]=b;
  stubs[stubcount][5]=c;
  stubs[stubcount][6]=d;
  stubs[stubcount][7]=e;
  stubcount++;
}

// Write out a single register
void wb_register(signed char r,signed char regmap[],uint64_t dirty,uint64_t is32)
{
  int hr;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if((regmap[hr]&63)==r) {
        if((dirty>>hr)&1) {
          if(regmap[hr]<64) {
            emit_storereg(r,hr);
#ifndef FORCE32
            if((is32>>regmap[hr])&1) {
              emit_sarimm(hr,31,hr);
              emit_storereg(r|64,hr);
            }
#endif
          }else{
            emit_storereg(r|64,hr);
          }
        }
      }
    }
  }
}

int mchecksum()
{
  //if(!tracedebug) return 0;
  int i;
  int sum=0;
  for(i=0;i<2097152;i++) {
    unsigned int temp=sum;
    sum<<=1;
    sum|=(~temp)>>31;
    sum^=((u_int *)rdram)[i];
  }
  return sum;
}
int rchecksum()
{
  int i;
  int sum=0;
  for(i=0;i<64;i++)
    sum^=((u_int *)reg)[i];
  return sum;
}
void rlist()
{
  int i;
  printf("TRACE: ");
  for(i=0;i<32;i++)
    printf("r%d:%8x%8x ",i,((int *)(reg+i))[1],((int *)(reg+i))[0]);
  printf("\n");
#ifndef DISABLE_COP1
  printf("TRACE: ");
  for(i=0;i<32;i++)
    printf("f%d:%8x%8x ",i,((int*)reg_cop1_simple[i])[1],*((int*)reg_cop1_simple[i]));
  printf("\n");
#endif
}

void enabletrace()
{
  tracedebug=1;
}

void memdebug(int i)
{
  //printf("TRACE: count=%d next=%d (checksum %x) lo=%8x%8x\n",Count,next_interupt,mchecksum(),(int)(reg[LOREG]>>32),(int)reg[LOREG]);
  //printf("TRACE: count=%d next=%d (rchecksum %x)\n",Count,next_interupt,rchecksum());
  //rlist();
  //if(tracedebug) {
  //if(Count>=-2084597794) {
  if((signed int)Count>=-2084597794&&(signed int)Count<0) {
  //if(0) {
    printf("TRACE: count=%d next=%d (checksum %x)\n",Count,next_interupt,mchecksum());
    //printf("TRACE: count=%d next=%d (checksum %x) Status=%x\n",Count,next_interupt,mchecksum(),Status);
    //printf("TRACE: count=%d next=%d (checksum %x) hi=%8x%8x\n",Count,next_interupt,mchecksum(),(int)(reg[HIREG]>>32),(int)reg[HIREG]);
    rlist();
    #ifdef __i386__
    printf("TRACE: %x\n",(&i)[-1]);
    #endif
    #ifdef __arm__
    int j;
    printf("TRACE: %x \n",(&j)[10]);
    printf("TRACE: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x\n",(&j)[1],(&j)[2],(&j)[3],(&j)[4],(&j)[5],(&j)[6],(&j)[7],(&j)[8],(&j)[9],(&j)[10],(&j)[11],(&j)[12],(&j)[13],(&j)[14],(&j)[15],(&j)[16],(&j)[17],(&j)[18],(&j)[19],(&j)[20]);
    #endif
    //fflush(stdout);
  }
  //printf("TRACE: %x\n",(&i)[-1]);
}

void tlb_debug(u_int cause, u_int addr, u_int iaddr)
{
  printf("TLB Exception: instruction=%x addr=%x cause=%x\n",iaddr, addr, cause);
}

void alu_assemble(int i,struct regstat *i_regs)
{
  if(opcode2[i]>=0x20&&opcode2[i]<=0x23) { // ADD/ADDU/SUB/SUBU
    if(rt1[i]) {
      signed char s1,s2,t;
      t=get_reg(i_regs->regmap,rt1[i]);
      if(t>=0) {
        s1=get_reg(i_regs->regmap,rs1[i]);
        s2=get_reg(i_regs->regmap,rs2[i]);
        if(rs1[i]&&rs2[i]) {
          assert(s1>=0);
          assert(s2>=0);
          if(opcode2[i]&2) emit_sub(s1,s2,t);
          else emit_add(s1,s2,t);
        }
        else if(rs1[i]) {
          if(s1>=0) emit_mov(s1,t);
          else emit_loadreg(rs1[i],t);
        }
        else if(rs2[i]) {
          if(s2>=0) {
            if(opcode2[i]&2) emit_neg(s2,t);
            else emit_mov(s2,t);
          }
          else {
            emit_loadreg(rs2[i],t);
            if(opcode2[i]&2) emit_neg(t,t);
          }
        }
        else emit_zeroreg(t);
      }
    }
  }
  if(opcode2[i]>=0x2c&&opcode2[i]<=0x2f) { // DADD/DADDU/DSUB/DSUBU
    if(rt1[i]) {
      signed char s1l,s2l,s1h,s2h,tl,th;
      tl=get_reg(i_regs->regmap,rt1[i]);
      th=get_reg(i_regs->regmap,rt1[i]|64);
      if(tl>=0) {
        s1l=get_reg(i_regs->regmap,rs1[i]);
        s2l=get_reg(i_regs->regmap,rs2[i]);
        s1h=get_reg(i_regs->regmap,rs1[i]|64);
        s2h=get_reg(i_regs->regmap,rs2[i]|64);
        if(rs1[i]&&rs2[i]) {
          assert(s1l>=0);
          assert(s2l>=0);
          if(opcode2[i]&2) emit_subs(s1l,s2l,tl);
          else emit_adds(s1l,s2l,tl);
          if(th>=0) {
            #ifdef INVERTED_CARRY
            if(opcode2[i]&2) {if(s1h!=th) emit_mov(s1h,th);emit_sbb(th,s2h);}
            #else
            if(opcode2[i]&2) emit_sbc(s1h,s2h,th);
            #endif
            else emit_add(s1h,s2h,th);
          }
        }
        else if(rs1[i]) {
          if(s1l>=0) emit_mov(s1l,tl);
          else emit_loadreg(rs1[i],tl);
          if(th>=0) {
            if(s1h>=0) emit_mov(s1h,th);
            else emit_loadreg(rs1[i]|64,th);
          }
        }
        else if(rs2[i]) {
          if(s2l>=0) {
            if(opcode2[i]&2) emit_negs(s2l,tl);
            else emit_mov(s2l,tl);
          }
          else {
            emit_loadreg(rs2[i],tl);
            if(opcode2[i]&2) emit_negs(tl,tl);
          }
          if(th>=0) {
            #ifdef INVERTED_CARRY
            if(s2h>=0) emit_mov(s2h,th);
            else emit_loadreg(rs2[i]|64,th);
            if(opcode2[i]&2) {
              emit_adcimm(-1,th); // x86 has inverted carry flag
              emit_not(th,th);
            }
            #else
            if(opcode2[i]&2) {
              if(s2h>=0) emit_rscimm(s2h,0,th);
              else {
                emit_loadreg(rs2[i]|64,th);
                emit_rscimm(th,0,th);
              }
            }else{
              if(s2h>=0) emit_mov(s2h,th);
              else emit_loadreg(rs2[i]|64,th);
            }
            #endif
          }
        }
        else {
          emit_zeroreg(tl);
          if(th>=0) emit_zeroreg(th);
        }
      }
    }
  }
  if(opcode2[i]==0x2a||opcode2[i]==0x2b) { // SLT/SLTU
    if(rt1[i]) {
      signed char s1l,s1h,s2l,s2h,t;
      if(!((i_regs->was32>>rs1[i])&(i_regs->was32>>rs2[i])&1))
      {
        t=get_reg(i_regs->regmap,rt1[i]);
        //assert(t>=0);
        if(t>=0) {
          s1l=get_reg(i_regs->regmap,rs1[i]);
          s1h=get_reg(i_regs->regmap,rs1[i]|64);
          s2l=get_reg(i_regs->regmap,rs2[i]);
          s2h=get_reg(i_regs->regmap,rs2[i]|64);
          if(rs2[i]==0) // rx<r0
          {
            assert(s1h>=0);
            if(opcode2[i]==0x2a) // SLT
              emit_shrimm(s1h,31,t);
            else // SLTU (unsigned can not be less than zero)
              emit_zeroreg(t);
          }
          else if(rs1[i]==0) // r0<rx
          {
            assert(s2h>=0);
            if(opcode2[i]==0x2a) // SLT
              emit_set_gz64_32(s2h,s2l,t);
            else // SLTU (set if not zero)
              emit_set_nz64_32(s2h,s2l,t);
          }
          else {
            assert(s1l>=0);assert(s1h>=0);
            assert(s2l>=0);assert(s2h>=0);
            if(opcode2[i]==0x2a) // SLT
              emit_set_if_less64_32(s1h,s1l,s2h,s2l,t);
            else // SLTU
              emit_set_if_carry64_32(s1h,s1l,s2h,s2l,t);
          }
        }
      } else {
        t=get_reg(i_regs->regmap,rt1[i]);
        //assert(t>=0);
        if(t>=0) {
          s1l=get_reg(i_regs->regmap,rs1[i]);
          s2l=get_reg(i_regs->regmap,rs2[i]);
          if(rs2[i]==0) // rx<r0
          {
            assert(s1l>=0);
            if(opcode2[i]==0x2a) // SLT
              emit_shrimm(s1l,31,t);
            else // SLTU (unsigned can not be less than zero)
              emit_zeroreg(t);
          }
          else if(rs1[i]==0) // r0<rx
          {
            assert(s2l>=0);
            if(opcode2[i]==0x2a) // SLT
              emit_set_gz32(s2l,t);
            else // SLTU (set if not zero)
              emit_set_nz32(s2l,t);
          }
          else{
            assert(s1l>=0);assert(s2l>=0);
            if(opcode2[i]==0x2a) // SLT
              emit_set_if_less32(s1l,s2l,t);
            else // SLTU
              emit_set_if_carry32(s1l,s2l,t);
          }
        }
      }
    }
  }
  if(opcode2[i]>=0x24&&opcode2[i]<=0x27) { // AND/OR/XOR/NOR
    if(rt1[i]) {
      signed char s1l,s1h,s2l,s2h,th,tl;
      tl=get_reg(i_regs->regmap,rt1[i]);
      th=get_reg(i_regs->regmap,rt1[i]|64);
      if(!((i_regs->was32>>rs1[i])&(i_regs->was32>>rs2[i])&1)&&th>=0)
      {
        assert(tl>=0);
        if(tl>=0) {
          s1l=get_reg(i_regs->regmap,rs1[i]);
          s1h=get_reg(i_regs->regmap,rs1[i]|64);
          s2l=get_reg(i_regs->regmap,rs2[i]);
          s2h=get_reg(i_regs->regmap,rs2[i]|64);
          if(rs1[i]&&rs2[i]) {
            assert(s1l>=0);assert(s1h>=0);
            assert(s2l>=0);assert(s2h>=0);
            if(opcode2[i]==0x24) { // AND
              emit_and(s1l,s2l,tl);
              emit_and(s1h,s2h,th);
            } else
            if(opcode2[i]==0x25) { // OR
              emit_or(s1l,s2l,tl);
              emit_or(s1h,s2h,th);
            } else
            if(opcode2[i]==0x26) { // XOR
              emit_xor(s1l,s2l,tl);
              emit_xor(s1h,s2h,th);
            } else
            if(opcode2[i]==0x27) { // NOR
              emit_or(s1l,s2l,tl);
              emit_or(s1h,s2h,th);
              emit_not(tl,tl);
              emit_not(th,th);
            }
          }
          else
          {
            if(opcode2[i]==0x24) { // AND
              emit_zeroreg(tl);
              emit_zeroreg(th);
            } else
            if(opcode2[i]==0x25||opcode2[i]==0x26) { // OR/XOR
              if(rs1[i]){
                if(s1l>=0) emit_mov(s1l,tl);
                else emit_loadreg(rs1[i],tl);
                if(s1h>=0) emit_mov(s1h,th);
                else emit_loadreg(rs1[i]|64,th);
              }
              else
              if(rs2[i]){
                if(s2l>=0) emit_mov(s2l,tl);
                else emit_loadreg(rs2[i],tl);
                if(s2h>=0) emit_mov(s2h,th);
                else emit_loadreg(rs2[i]|64,th);
              }
              else{
                emit_zeroreg(tl);
                emit_zeroreg(th);
              }
            } else
            if(opcode2[i]==0x27) { // NOR
              if(rs1[i]){
                if(s1l>=0) emit_not(s1l,tl);
                else{
                  emit_loadreg(rs1[i],tl);
                  emit_not(tl,tl);
                }
                if(s1h>=0) emit_not(s1h,th);
                else{
                  emit_loadreg(rs1[i]|64,th);
                  emit_not(th,th);
                }
              }
              else
              if(rs2[i]){
                if(s2l>=0) emit_not(s2l,tl);
                else{
                  emit_loadreg(rs2[i],tl);
                  emit_not(tl,tl);
                }
                if(s2h>=0) emit_not(s2h,th);
                else{
                  emit_loadreg(rs2[i]|64,th);
                  emit_not(th,th);
                }
              }
              else {
                emit_movimm(-1,tl);
                emit_movimm(-1,th);
              }
            }
          }
        }
      }
      else
      {
        // 32 bit
        if(tl>=0) {
          s1l=get_reg(i_regs->regmap,rs1[i]);
          s2l=get_reg(i_regs->regmap,rs2[i]);
          if(rs1[i]&&rs2[i]) {
            assert(s1l>=0);
            assert(s2l>=0);
            if(opcode2[i]==0x24) { // AND
              emit_and(s1l,s2l,tl);
            } else
            if(opcode2[i]==0x25) { // OR
              emit_or(s1l,s2l,tl);
            } else
            if(opcode2[i]==0x26) { // XOR
              emit_xor(s1l,s2l,tl);
            } else
            if(opcode2[i]==0x27) { // NOR
              emit_or(s1l,s2l,tl);
              emit_not(tl,tl);
            }
          }
          else
          {
            if(opcode2[i]==0x24) { // AND
              emit_zeroreg(tl);
            } else
            if(opcode2[i]==0x25||opcode2[i]==0x26) { // OR/XOR
              if(rs1[i]){
                if(s1l>=0) emit_mov(s1l,tl);
                else emit_loadreg(rs1[i],tl); // CHECK: regmap_entry?
              }
              else
              if(rs2[i]){
                if(s2l>=0) emit_mov(s2l,tl);
                else emit_loadreg(rs2[i],tl); // CHECK: regmap_entry?
              }
              else emit_zeroreg(tl);
            } else
            if(opcode2[i]==0x27) { // NOR
              if(rs1[i]){
                if(s1l>=0) emit_not(s1l,tl);
                else {
                  emit_loadreg(rs1[i],tl);
                  emit_not(tl,tl);
                }
              }
              else
              if(rs2[i]){
                if(s2l>=0) emit_not(s2l,tl);
                else {
                  emit_loadreg(rs2[i],tl);
                  emit_not(tl,tl);
                }
              }
              else emit_movimm(-1,tl);
            }
          }
        }
      }
    }
  }
}

void imm16_assemble(int i,struct regstat *i_regs)
{
  if (opcode[i]==0x0f) { // LUI
    if(rt1[i]) {
      signed char t;
      t=get_reg(i_regs->regmap,rt1[i]);
      //assert(t>=0);
      if(t>=0) {
        if(!((i_regs->isconst>>t)&1))
          emit_movimm(imm[i]<<16,t);
      }
    }
  }
  if(opcode[i]==0x08||opcode[i]==0x09) { // ADDI/ADDIU
    if(rt1[i]) {
      signed char s,t;
      t=get_reg(i_regs->regmap,rt1[i]);
      s=get_reg(i_regs->regmap,rs1[i]);
      if(rs1[i]) {
        //assert(t>=0);
        //assert(s>=0);
        if(t>=0) {
          if(!((i_regs->isconst>>t)&1)) {
            if(s<0) {
              if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t);
              emit_addimm(t,imm[i],t);
            }else{
              if(!((i_regs->wasconst>>s)&1))
                emit_addimm(s,imm[i],t);
              else
                emit_movimm(constmap[i][s]+imm[i],t);
            }
          }
        }
      } else {
        if(t>=0) {
          if(!((i_regs->isconst>>t)&1))
            emit_movimm(imm[i],t);
        }
      }
    }
  }
  if(opcode[i]==0x18||opcode[i]==0x19) { // DADDI/DADDIU
    if(rt1[i]) {
      signed char sh,sl,th,tl;
      th=get_reg(i_regs->regmap,rt1[i]|64);
      tl=get_reg(i_regs->regmap,rt1[i]);
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      sl=get_reg(i_regs->regmap,rs1[i]);
      if(tl>=0) {
        if(rs1[i]) {
          assert(sh>=0);
          assert(sl>=0);
          if(th>=0) {
            emit_addimm64_32(sh,sl,imm[i],th,tl);
          }
          else {
            emit_addimm(sl,imm[i],tl);
          }
        } else {
          emit_movimm(imm[i],tl);
          if(th>=0) emit_movimm(((signed int)imm[i])>>31,th);
        }
      }
    }
  }
  else if(opcode[i]==0x0a||opcode[i]==0x0b) { // SLTI/SLTIU
    if(rt1[i]) {
      //assert(rs1[i]!=0); // r0 might be valid, but it's probably a bug
      signed char sh,sl,t;
      t=get_reg(i_regs->regmap,rt1[i]);
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      sl=get_reg(i_regs->regmap,rs1[i]);
      //assert(t>=0);
      if(t>=0) {
        if(rs1[i]>0) {
          if(sh<0) assert((i_regs->was32>>rs1[i])&1);
          if(sh<0||((i_regs->was32>>rs1[i])&1)) {
            if(opcode[i]==0x0a) { // SLTI
              if(sl<0) {
                if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t);
                emit_slti32(t,imm[i],t);
              }else{
                emit_slti32(sl,imm[i],t);
              }
            }
            else { // SLTIU
              if(sl<0) {
                if(i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t);
                emit_sltiu32(t,imm[i],t);
              }else{
                emit_sltiu32(sl,imm[i],t);
              }
            }
          }else{ // 64-bit
            assert(sl>=0);
            if(opcode[i]==0x0a) // SLTI
              emit_slti64_32(sh,sl,imm[i],t);
            else // SLTIU
              emit_sltiu64_32(sh,sl,imm[i],t);
          }
        }else{
          // SLTI(U) with r0 is just stupid,
          // nonetheless examples can be found
          if(opcode[i]==0x0a) // SLTI
            if(0<imm[i]) emit_movimm(1,t);
            else emit_zeroreg(t);
          else // SLTIU
          {
            if(imm[i]) emit_movimm(1,t);
            else emit_zeroreg(t);
          }
        }
      }
    }
  }
  else if(opcode[i]>=0x0c&&opcode[i]<=0x0e) { // ANDI/ORI/XORI
    if(rt1[i]) {
      signed char sh,sl,th,tl;
      th=get_reg(i_regs->regmap,rt1[i]|64);
      tl=get_reg(i_regs->regmap,rt1[i]);
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      sl=get_reg(i_regs->regmap,rs1[i]);
      if(tl>=0 && !((i_regs->isconst>>tl)&1)) {
        if(opcode[i]==0x0c) //ANDI
        {
          if(rs1[i]) {
            if(sl<0) {
              if(i_regs->regmap_entry[tl]!=rs1[i]) emit_loadreg(rs1[i],tl);
              emit_andimm(tl,imm[i],tl);
            }else{
              if(!((i_regs->wasconst>>sl)&1))
                emit_andimm(sl,imm[i],tl);
              else
                emit_movimm(constmap[i][sl]&imm[i],tl);
            }
          }
          else
            emit_zeroreg(tl);
          if(th>=0) emit_zeroreg(th);
        }
        else
        {
          if(rs1[i]) {
            if(sl<0) {
              if(i_regs->regmap_entry[tl]!=rs1[i]) emit_loadreg(rs1[i],tl);
            }
            if(th>=0) {
              if(sh<0) {
                emit_loadreg(rs1[i]|64,th);
              }else{
                emit_mov(sh,th);
              }
            }
            if(opcode[i]==0x0d) //ORI
            if(sl<0) {
              emit_orimm(tl,imm[i],tl);
            }else{
              if(!((i_regs->wasconst>>sl)&1))
                emit_orimm(sl,imm[i],tl);
              else
                emit_movimm(constmap[i][sl]|imm[i],tl);
            }
            if(opcode[i]==0x0e) //XORI
            if(sl<0) {
              emit_xorimm(tl,imm[i],tl);
            }else{
              if(!((i_regs->wasconst>>sl)&1))
                emit_xorimm(sl,imm[i],tl);
              else
                emit_movimm(constmap[i][sl]^imm[i],tl);
            }
          }
          else {
            emit_movimm(imm[i],tl);
            if(th>=0) emit_zeroreg(th);
          }
        }
      }
    }
  }
}

void shiftimm_assemble(int i,struct regstat *i_regs)
{
  if(opcode2[i]<=0x3) // SLL/SRL/SRA
  {
    if(rt1[i]) {
      signed char s,t;
      t=get_reg(i_regs->regmap,rt1[i]);
      s=get_reg(i_regs->regmap,rs1[i]);
      //assert(t>=0);
      if(t>=0){
        if(rs1[i]==0)
        {
          emit_zeroreg(t);
        }
        else
        {
          if(s<0&&i_regs->regmap_entry[t]!=rs1[i]) emit_loadreg(rs1[i],t);
          if(imm[i]) {
            if(opcode2[i]==0) // SLL
            {
              emit_shlimm(s<0?t:s,imm[i],t);
            }
            if(opcode2[i]==2) // SRL
            {
              emit_shrimm(s<0?t:s,imm[i],t);
            }
            if(opcode2[i]==3) // SRA
            {
              emit_sarimm(s<0?t:s,imm[i],t);
            }
          }else{
            // Shift by zero
            if(s>=0 && s!=t) emit_mov(s,t);
          }
        }
      }
      //emit_storereg(rt1[i],t); //DEBUG
    }
  }
  if(opcode2[i]>=0x38&&opcode2[i]<=0x3b) // DSLL/DSRL/DSRA
  {
    if(rt1[i]) {
      signed char sh,sl,th,tl;
      th=get_reg(i_regs->regmap,rt1[i]|64);
      tl=get_reg(i_regs->regmap,rt1[i]);
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      sl=get_reg(i_regs->regmap,rs1[i]);
      if(tl>=0) {
        if(rs1[i]==0)
        {
          emit_zeroreg(tl);
          if(th>=0) emit_zeroreg(th);
        }
        else
        {
          assert(sl>=0);
          assert(sh>=0);
          if(imm[i]) {
            if(opcode2[i]==0x38) // DSLL
            {
              if(th>=0) emit_shldimm(sh,sl,imm[i],th);
              emit_shlimm(sl,imm[i],tl);
            }
            if(opcode2[i]==0x3a) // DSRL
            {
              emit_shrdimm(sl,sh,imm[i],tl);
              if(th>=0) emit_shrimm(sh,imm[i],th);
            }
            if(opcode2[i]==0x3b) // DSRA
            {
              emit_shrdimm(sl,sh,imm[i],tl);
              if(th>=0) emit_sarimm(sh,imm[i],th);
            }
          }else{
            // Shift by zero
            if(sl!=tl) emit_mov(sl,tl);
            if(th>=0&&sh!=th) emit_mov(sh,th);
          }
        }
      }
    }
  }
  if(opcode2[i]==0x3c) // DSLL32
  {
    if(rt1[i]) {
      signed char sl,tl,th;
      tl=get_reg(i_regs->regmap,rt1[i]);
      th=get_reg(i_regs->regmap,rt1[i]|64);
      sl=get_reg(i_regs->regmap,rs1[i]);
      if(th>=0||tl>=0){
        assert(tl>=0);
        assert(th>=0);
        assert(sl>=0);
        emit_mov(sl,th);
        emit_zeroreg(tl);
        if(imm[i]>32)
        {
          emit_shlimm(th,imm[i]&31,th);
        }
      }
    }
  }
  if(opcode2[i]==0x3e) // DSRL32
  {
    if(rt1[i]) {
      signed char sh,tl,th;
      tl=get_reg(i_regs->regmap,rt1[i]);
      th=get_reg(i_regs->regmap,rt1[i]|64);
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      if(tl>=0){
        assert(sh>=0);
        emit_mov(sh,tl);
        if(th>=0) emit_zeroreg(th);
        if(imm[i]>32)
        {
          emit_shrimm(tl,imm[i]&31,tl);
        }
      }
    }
  }
  if(opcode2[i]==0x3f) // DSRA32
  {
    if(rt1[i]) {
      signed char sh,tl;
      tl=get_reg(i_regs->regmap,rt1[i]);
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      if(tl>=0){
        assert(sh>=0);
        emit_mov(sh,tl);
        if(imm[i]>32)
        {
          emit_sarimm(tl,imm[i]&31,tl);
        }
      }
    }
  }
}

#ifndef shift_assemble
void shift_assemble(int i,struct regstat *i_regs)
{
  printf("Need shift_assemble for this architecture.\n");
  exit(1);
}
#endif

void load_assemble(int i,struct regstat *i_regs)
{
  int s,th,tl,addr,map=-1;
  int offset;
  int jaddr=0;
  int memtarget=0,c=0;
  u_int hr,reglist=0;
  th=get_reg(i_regs->regmap,rt1[i]|64);
  tl=get_reg(i_regs->regmap,rt1[i]);
  s=get_reg(i_regs->regmap,rs1[i]);
  offset=imm[i];
  for(hr=0;hr<HOST_REGS;hr++) {
    if(i_regs->regmap[hr]>=0) reglist|=1<<hr;
  }
  if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG);
  if(s>=0) {
    c=(i_regs->wasconst>>s)&1;
    if (c) {
      memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE;
      if(using_tlb&&((signed int)(constmap[i][s]+offset))>=(signed int)0xC0000000) memtarget=1;
    }
  }
  //printf("load_assemble: c=%d\n",c);
  //if(c) printf("load_assemble: const=%x\n",(int)constmap[i][s]+offset);
  // FIXME: Even if the load is a NOP, we should check for pagefaults...
#ifdef PCSX
  if(tl<0&&(!c||(((u_int)constmap[i][s]+offset)>>16)==0x1f80)
    ||rt1[i]==0) {
      // could be FIFO, must perform the read
      // ||dummy read
      assem_debug("(forced read)\n");
      tl=get_reg(i_regs->regmap,-1);
      assert(tl>=0);
  }
#endif
  if(offset||s<0||c) addr=tl;
  else addr=s;
  //if(tl<0) tl=get_reg(i_regs->regmap,-1);
 if(tl>=0) {
  //printf("load_assemble: c=%d\n",c);
  //if(c) printf("load_assemble: const=%x\n",(int)constmap[i][s]+offset);
  assert(tl>=0); // Even if the load is a NOP, we must check for pagefaults and I/O
  reglist&=~(1<<tl);
  if(th>=0) reglist&=~(1<<th);
  if(!using_tlb) {
    if(!c) {
      #ifdef RAM_OFFSET
      map=get_reg(i_regs->regmap,ROREG);
      if(map<0) emit_loadreg(ROREG,map=HOST_TEMPREG);
      #endif
//#define R29_HACK 1
      #ifdef R29_HACK
      // Strmnnrmn's speed hack
      if(rs1[i]!=29||start<0x80001000||start>=0x80000000+RAM_SIZE)
      #endif
      {
        #ifdef PCSX
        if(sp_in_mirror&&rs1[i]==29) {
          emit_andimm(addr,~0x00e00000,HOST_TEMPREG);
          emit_cmpimm(HOST_TEMPREG,RAM_SIZE);
        }
        else
        #endif
        emit_cmpimm(addr,RAM_SIZE);
        jaddr=(int)out;
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        // Hint to branch predictor that the branch is unlikely to be taken
        if(rs1[i]>=28)
          emit_jno_unlikely(0);
        else
        #endif
        emit_jno(0);
      }
    }
  }else{ // using tlb
    int x=0;
    if (opcode[i]==0x20||opcode[i]==0x24) x=3; // LB/LBU
    if (opcode[i]==0x21||opcode[i]==0x25) x=2; // LH/LHU
    map=get_reg(i_regs->regmap,TLREG);
    assert(map>=0);
    map=do_tlb_r(addr,tl,map,x,-1,-1,c,constmap[i][s]+offset);
    do_tlb_r_branch(map,c,constmap[i][s]+offset,&jaddr);
  }
  int dummy=(rt1[i]==0)||(tl!=get_reg(i_regs->regmap,rt1[i])); // ignore loads to r0 and unneeded reg
  if (opcode[i]==0x20) { // LB
    if(!c||memtarget) {
      if(!dummy) {
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_movsbl_tlb((constmap[i][s]+offset)^3,map,tl);
        else
        #endif
        {
          //emit_xorimm(addr,3,tl);
          //gen_tlb_addr_r(tl,map);
          //emit_movsbl_indexed((int)rdram-0x80000000,tl,tl);
          int x=0,a=tl;
#ifdef BIG_ENDIAN_MIPS
          if(!c) emit_xorimm(addr,3,tl);
          else x=((constmap[i][s]+offset)^3)-(constmap[i][s]+offset);
#else
          if(!c) a=addr;
#endif
#ifdef PCSX
          if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
          emit_movsbl_indexed_tlb(x,a,map,tl);
        }
      }
      if(jaddr)
        add_stub(LOADB_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else
      inline_readstub(LOADB_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
  }
  if (opcode[i]==0x21) { // LH
    if(!c||memtarget) {
      if(!dummy) {
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_movswl_tlb((constmap[i][s]+offset)^2,map,tl);
        else
        #endif
        {
          int x=0,a=tl;
#ifdef BIG_ENDIAN_MIPS
          if(!c) emit_xorimm(addr,2,tl);
          else x=((constmap[i][s]+offset)^2)-(constmap[i][s]+offset);
#else
          if(!c) a=addr;
#endif
#ifdef PCSX
          if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
          //#ifdef
          //emit_movswl_indexed_tlb(x,tl,map,tl);
          //else
          if(map>=0) {
            gen_tlb_addr_r(a,map);
            emit_movswl_indexed(x,a,tl);
          }else{
            #ifdef RAM_OFFSET
            emit_movswl_indexed(x,a,tl);
            #else
            emit_movswl_indexed((int)rdram-0x80000000+x,a,tl);
            #endif
          }
        }
      }
      if(jaddr)
        add_stub(LOADH_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else
      inline_readstub(LOADH_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
  }
  if (opcode[i]==0x23) { // LW
    if(!c||memtarget) {
      if(!dummy) {
        int a=addr;
#ifdef PCSX
        if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
        //emit_readword_indexed((int)rdram-0x80000000,addr,tl);
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_readword_tlb(constmap[i][s]+offset,map,tl);
        else
        #endif
        emit_readword_indexed_tlb(0,a,map,tl);
      }
      if(jaddr)
        add_stub(LOADW_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else
      inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
  }
  if (opcode[i]==0x24) { // LBU
    if(!c||memtarget) {
      if(!dummy) {
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_movzbl_tlb((constmap[i][s]+offset)^3,map,tl);
        else
        #endif
        {
          //emit_xorimm(addr,3,tl);
          //gen_tlb_addr_r(tl,map);
          //emit_movzbl_indexed((int)rdram-0x80000000,tl,tl);
          int x=0,a=tl;
#ifdef BIG_ENDIAN_MIPS
          if(!c) emit_xorimm(addr,3,tl);
          else x=((constmap[i][s]+offset)^3)-(constmap[i][s]+offset);
#else
          if(!c) a=addr;
#endif
#ifdef PCSX
          if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
          emit_movzbl_indexed_tlb(x,a,map,tl);
        }
      }
      if(jaddr)
        add_stub(LOADBU_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else
      inline_readstub(LOADBU_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
  }
  if (opcode[i]==0x25) { // LHU
    if(!c||memtarget) {
      if(!dummy) {
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_movzwl_tlb((constmap[i][s]+offset)^2,map,tl);
        else
        #endif
        {
          int x=0,a=tl;
#ifdef BIG_ENDIAN_MIPS
          if(!c) emit_xorimm(addr,2,tl);
          else x=((constmap[i][s]+offset)^2)-(constmap[i][s]+offset);
#else
          if(!c) a=addr;
#endif
#ifdef PCSX
          if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
          //#ifdef
          //emit_movzwl_indexed_tlb(x,tl,map,tl);
          //#else
          if(map>=0) {
            gen_tlb_addr_r(a,map);
            emit_movzwl_indexed(x,a,tl);
          }else{
            #ifdef RAM_OFFSET
            emit_movzwl_indexed(x,a,tl);
            #else
            emit_movzwl_indexed((int)rdram-0x80000000+x,a,tl);
            #endif
          }
        }
      }
      if(jaddr)
        add_stub(LOADHU_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else
      inline_readstub(LOADHU_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
  }
  if (opcode[i]==0x27) { // LWU
    assert(th>=0);
    if(!c||memtarget) {
      if(!dummy) {
        int a=addr;
#ifdef PCSX
        if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
        //emit_readword_indexed((int)rdram-0x80000000,addr,tl);
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_readword_tlb(constmap[i][s]+offset,map,tl);
        else
        #endif
        emit_readword_indexed_tlb(0,a,map,tl);
      }
      if(jaddr)
        add_stub(LOADW_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else {
      inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
    }
    emit_zeroreg(th);
  }
  if (opcode[i]==0x37) { // LD
    if(!c||memtarget) {
      if(!dummy) {
        int a=addr;
#ifdef PCSX
        if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
        //gen_tlb_addr_r(tl,map);
        //if(th>=0) emit_readword_indexed((int)rdram-0x80000000,addr,th);
        //emit_readword_indexed((int)rdram-0x7FFFFFFC,addr,tl);
        #ifdef HOST_IMM_ADDR32
        if(c)
          emit_readdword_tlb(constmap[i][s]+offset,map,th,tl);
        else
        #endif
        emit_readdword_indexed_tlb(0,a,map,th,tl);
      }
      if(jaddr)
        add_stub(LOADD_STUB,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
    }
    else
      inline_readstub(LOADD_STUB,i,constmap[i][s]+offset,i_regs->regmap,rt1[i],ccadj[i],reglist);
  }
 }
  //emit_storereg(rt1[i],tl); // DEBUG
  //if(opcode[i]==0x23)
  //if(opcode[i]==0x24)
  //if(opcode[i]==0x23||opcode[i]==0x24)
  /*if(opcode[i]==0x21||opcode[i]==0x23||opcode[i]==0x24)
  {
    //emit_pusha();
    save_regs(0x100f);
        emit_readword((int)&last_count,ECX);
        #ifdef __i386__
        if(get_reg(i_regs->regmap,CCREG)<0)
          emit_loadreg(CCREG,HOST_CCREG);
        emit_add(HOST_CCREG,ECX,HOST_CCREG);
        emit_addimm(HOST_CCREG,2*ccadj[i],HOST_CCREG);
        emit_writeword(HOST_CCREG,(int)&Count);
        #endif
        #ifdef __arm__
        if(get_reg(i_regs->regmap,CCREG)<0)
          emit_loadreg(CCREG,0);
        else
          emit_mov(HOST_CCREG,0);
        emit_add(0,ECX,0);
        emit_addimm(0,2*ccadj[i],0);
        emit_writeword(0,(int)&Count);
        #endif
    emit_call((int)memdebug);
    //emit_popa();
    restore_regs(0x100f);
  }/**/
}

#ifndef loadlr_assemble
void loadlr_assemble(int i,struct regstat *i_regs)
{
  printf("Need loadlr_assemble for this architecture.\n");
  exit(1);
}
#endif

void store_assemble(int i,struct regstat *i_regs)
{
  int s,th,tl,map=-1;
  int addr,temp;
  int offset;
  int jaddr=0,jaddr2,type;
  int memtarget=0,c=0;
  int agr=AGEN1+(i&1);
  u_int hr,reglist=0;
  th=get_reg(i_regs->regmap,rs2[i]|64);
  tl=get_reg(i_regs->regmap,rs2[i]);
  s=get_reg(i_regs->regmap,rs1[i]);
  temp=get_reg(i_regs->regmap,agr);
  if(temp<0) temp=get_reg(i_regs->regmap,-1);
  offset=imm[i];
  if(s>=0) {
    c=(i_regs->wasconst>>s)&1;
    if(c) {
      memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE;
      if(using_tlb&&((signed int)(constmap[i][s]+offset))>=(signed int)0xC0000000) memtarget=1;
    }
  }
  assert(tl>=0);
  assert(temp>=0);
  for(hr=0;hr<HOST_REGS;hr++) {
    if(i_regs->regmap[hr]>=0) reglist|=1<<hr;
  }
  if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG);
  if(offset||s<0||c) addr=temp;
  else addr=s;
  if(!using_tlb) {
    if(!c) {
      #ifdef PCSX
      if(sp_in_mirror&&rs1[i]==29) {
        emit_andimm(addr,~0x00e00000,HOST_TEMPREG);
        emit_cmpimm(HOST_TEMPREG,RAM_SIZE);
      }
      else
      #endif
      #ifdef R29_HACK
      // Strmnnrmn's speed hack
      if(rs1[i]!=29||start<0x80001000||start>=0x80000000+RAM_SIZE)
      #endif
      emit_cmpimm(addr,RAM_SIZE);
      #ifdef DESTRUCTIVE_SHIFT
      if(s==addr) emit_mov(s,temp);
      #endif
      #ifdef R29_HACK
      memtarget=1;
      if(rs1[i]!=29||start<0x80001000||start>=0x80000000+RAM_SIZE)
      #endif
      {
        jaddr=(int)out;
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        // Hint to branch predictor that the branch is unlikely to be taken
        if(rs1[i]>=28)
          emit_jno_unlikely(0);
        else
        #endif
        emit_jno(0);
      }
    }
  }else{ // using tlb
    int x=0;
    if (opcode[i]==0x28) x=3; // SB
    if (opcode[i]==0x29) x=2; // SH
    map=get_reg(i_regs->regmap,TLREG);
    assert(map>=0);
    map=do_tlb_w(addr,temp,map,x,c,constmap[i][s]+offset);
    do_tlb_w_branch(map,c,constmap[i][s]+offset,&jaddr);
  }

  if (opcode[i]==0x28) { // SB
    if(!c||memtarget) {
      int x=0,a=temp;
#ifdef BIG_ENDIAN_MIPS
      if(!c) emit_xorimm(addr,3,temp);
      else x=((constmap[i][s]+offset)^3)-(constmap[i][s]+offset);
#else
      if(!c) a=addr;
#endif
#ifdef PCSX
      if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
      //gen_tlb_addr_w(temp,map);
      //emit_writebyte_indexed(tl,(int)rdram-0x80000000,temp);
      emit_writebyte_indexed_tlb(tl,x,a,map,a);
    }
    type=STOREB_STUB;
  }
  if (opcode[i]==0x29) { // SH
    if(!c||memtarget) {
      int x=0,a=temp;
#ifdef BIG_ENDIAN_MIPS
      if(!c) emit_xorimm(addr,2,temp);
      else x=((constmap[i][s]+offset)^2)-(constmap[i][s]+offset);
#else
      if(!c) a=addr;
#endif
#ifdef PCSX
      if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
      //#ifdef
      //emit_writehword_indexed_tlb(tl,x,temp,map,temp);
      //#else
      if(map>=0) {
        gen_tlb_addr_w(a,map);
        emit_writehword_indexed(tl,x,a);
      }else
        emit_writehword_indexed(tl,(int)rdram-0x80000000+x,a);
    }
    type=STOREH_STUB;
  }
  if (opcode[i]==0x2B) { // SW
    if(!c||memtarget) {
      int a=addr;
#ifdef PCSX
      if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
      //emit_writeword_indexed(tl,(int)rdram-0x80000000,addr);
      emit_writeword_indexed_tlb(tl,0,a,map,temp);
    }
    type=STOREW_STUB;
  }
  if (opcode[i]==0x3F) { // SD
    if(!c||memtarget) {
      int a=addr;
#ifdef PCSX
      if(sp_in_mirror&&rs1[i]==29) a=HOST_TEMPREG;
#endif
      if(rs2[i]) {
        assert(th>=0);
        //emit_writeword_indexed(th,(int)rdram-0x80000000,addr);
        //emit_writeword_indexed(tl,(int)rdram-0x7FFFFFFC,addr);
        emit_writedword_indexed_tlb(th,tl,0,a,map,temp);
      }else{
        // Store zero
        //emit_writeword_indexed(tl,(int)rdram-0x80000000,temp);
        //emit_writeword_indexed(tl,(int)rdram-0x7FFFFFFC,temp);
        emit_writedword_indexed_tlb(tl,tl,0,a,map,temp);
      }
    }
    type=STORED_STUB;
  }
  if(!using_tlb) {
    if(!c||memtarget) {
      #ifdef DESTRUCTIVE_SHIFT
      // The x86 shift operation is 'destructive'; it overwrites the
      // source register, so we need to make a copy first and use that.
      addr=temp;
      #endif
      #if defined(HOST_IMM8)
      int ir=get_reg(i_regs->regmap,INVCP);
      assert(ir>=0);
      emit_cmpmem_indexedsr12_reg(ir,addr,1);
      #else
      emit_cmpmem_indexedsr12_imm((int)invalid_code,addr,1);
      #endif
      #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT)
      emit_callne(invalidate_addr_reg[addr]);
      #else
      jaddr2=(int)out;
      emit_jne(0);
      add_stub(INVCODE_STUB,jaddr2,(int)out,reglist|(1<<HOST_CCREG),addr,0,0,0);
      #endif
    }
  }
  if(jaddr) {
    add_stub(type,jaddr,(int)out,i,addr,(int)i_regs,ccadj[i],reglist);
  } else if(c&&!memtarget) {
    inline_writestub(type,i,constmap[i][s]+offset,i_regs->regmap,rs2[i],ccadj[i],reglist);
  }
  //if(opcode[i]==0x2B || opcode[i]==0x3F)
  //if(opcode[i]==0x2B || opcode[i]==0x28)
  //if(opcode[i]==0x2B || opcode[i]==0x29)
  //if(opcode[i]==0x2B)
  /*if(opcode[i]==0x2B || opcode[i]==0x28 || opcode[i]==0x29 || opcode[i]==0x3F)
  {
    //emit_pusha();
    save_regs(0x100f);
        emit_readword((int)&last_count,ECX);
        #ifdef __i386__
        if(get_reg(i_regs->regmap,CCREG)<0)
          emit_loadreg(CCREG,HOST_CCREG);
        emit_add(HOST_CCREG,ECX,HOST_CCREG);
        emit_addimm(HOST_CCREG,2*ccadj[i],HOST_CCREG);
        emit_writeword(HOST_CCREG,(int)&Count);
        #endif
        #ifdef __arm__
        if(get_reg(i_regs->regmap,CCREG)<0)
          emit_loadreg(CCREG,0);
        else
          emit_mov(HOST_CCREG,0);
        emit_add(0,ECX,0);
        emit_addimm(0,2*ccadj[i],0);
        emit_writeword(0,(int)&Count);
        #endif
    emit_call((int)memdebug);
    //emit_popa();
    restore_regs(0x100f);
  }/**/
}

void storelr_assemble(int i,struct regstat *i_regs)
{
  int s,th,tl;
  int temp;
  int temp2;
  int offset;
  int jaddr=0,jaddr2;
  int case1,case2,case3;
  int done0,done1,done2;
  int memtarget=0,c=0;
  int agr=AGEN1+(i&1);
  u_int hr,reglist=0;
  th=get_reg(i_regs->regmap,rs2[i]|64);
  tl=get_reg(i_regs->regmap,rs2[i]);
  s=get_reg(i_regs->regmap,rs1[i]);
  temp=get_reg(i_regs->regmap,agr);
  if(temp<0) temp=get_reg(i_regs->regmap,-1);
  offset=imm[i];
  if(s>=0) {
    c=(i_regs->isconst>>s)&1;
    if(c) {
      memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE;
      if(using_tlb&&((signed int)(constmap[i][s]+offset))>=(signed int)0xC0000000) memtarget=1;
    }
  }
  assert(tl>=0);
  for(hr=0;hr<HOST_REGS;hr++) {
    if(i_regs->regmap[hr]>=0) reglist|=1<<hr;
  }
  assert(temp>=0);
  if(!using_tlb) {
    if(!c) {
      emit_cmpimm(s<0||offset?temp:s,RAM_SIZE);
      if(!offset&&s!=temp) emit_mov(s,temp);
      jaddr=(int)out;
      emit_jno(0);
    }
    else
    {
      if(!memtarget||!rs1[i]) {
        jaddr=(int)out;
        emit_jmp(0);
      }
    }
    #ifdef RAM_OFFSET
    int map=get_reg(i_regs->regmap,ROREG);
    if(map<0) emit_loadreg(ROREG,map=HOST_TEMPREG);
    gen_tlb_addr_w(temp,map);
    #else
    if((u_int)rdram!=0x80000000) 
      emit_addimm_no_flags((u_int)rdram-(u_int)0x80000000,temp);
    #endif
  }else{ // using tlb
    int map=get_reg(i_regs->regmap,TLREG);
    assert(map>=0);
    map=do_tlb_w(c||s<0||offset?temp:s,temp,map,0,c,constmap[i][s]+offset);
    if(!c&&!offset&&s>=0) emit_mov(s,temp);
    do_tlb_w_branch(map,c,constmap[i][s]+offset,&jaddr);
    if(!jaddr&&!memtarget) {
      jaddr=(int)out;
      emit_jmp(0);
    }
    gen_tlb_addr_w(temp,map);
  }

  if (opcode[i]==0x2C||opcode[i]==0x2D) { // SDL/SDR
    temp2=get_reg(i_regs->regmap,FTEMP);
    if(!rs2[i]) temp2=th=tl;
  }

#ifndef BIG_ENDIAN_MIPS
    emit_xorimm(temp,3,temp);
#endif
  emit_testimm(temp,2);
  case2=(int)out;
  emit_jne(0);
  emit_testimm(temp,1);
  case1=(int)out;
  emit_jne(0);
  // 0
  if (opcode[i]==0x2A) { // SWL
    emit_writeword_indexed(tl,0,temp);
  }
  if (opcode[i]==0x2E) { // SWR
    emit_writebyte_indexed(tl,3,temp);
  }
  if (opcode[i]==0x2C) { // SDL
    emit_writeword_indexed(th,0,temp);
    if(rs2[i]) emit_mov(tl,temp2);
  }
  if (opcode[i]==0x2D) { // SDR
    emit_writebyte_indexed(tl,3,temp);
    if(rs2[i]) emit_shldimm(th,tl,24,temp2);
  }
  done0=(int)out;
  emit_jmp(0);
  // 1
  set_jump_target(case1,(int)out);
  if (opcode[i]==0x2A) { // SWL
    // Write 3 msb into three least significant bytes
    if(rs2[i]) emit_rorimm(tl,8,tl);
    emit_writehword_indexed(tl,-1,temp);
    if(rs2[i]) emit_rorimm(tl,16,tl);
    emit_writebyte_indexed(tl,1,temp);
    if(rs2[i]) emit_rorimm(tl,8,tl);
  }
  if (opcode[i]==0x2E) { // SWR
    // Write two lsb into two most significant bytes
    emit_writehword_indexed(tl,1,temp);
  }
  if (opcode[i]==0x2C) { // SDL
    if(rs2[i]) emit_shrdimm(tl,th,8,temp2);
    // Write 3 msb into three least significant bytes
    if(rs2[i]) emit_rorimm(th,8,th);
    emit_writehword_indexed(th,-1,temp);
    if(rs2[i]) emit_rorimm(th,16,th);
    emit_writebyte_indexed(th,1,temp);
    if(rs2[i]) emit_rorimm(th,8,th);
  }
  if (opcode[i]==0x2D) { // SDR
    if(rs2[i]) emit_shldimm(th,tl,16,temp2);
    // Write two lsb into two most significant bytes
    emit_writehword_indexed(tl,1,temp);
  }
  done1=(int)out;
  emit_jmp(0);
  // 2
  set_jump_target(case2,(int)out);
  emit_testimm(temp,1);
  case3=(int)out;
  emit_jne(0);
  if (opcode[i]==0x2A) { // SWL
    // Write two msb into two least significant bytes
    if(rs2[i]) emit_rorimm(tl,16,tl);
    emit_writehword_indexed(tl,-2,temp);
    if(rs2[i]) emit_rorimm(tl,16,tl);
  }
  if (opcode[i]==0x2E) { // SWR
    // Write 3 lsb into three most significant bytes
    emit_writebyte_indexed(tl,-1,temp);
    if(rs2[i]) emit_rorimm(tl,8,tl);
    emit_writehword_indexed(tl,0,temp);
    if(rs2[i]) emit_rorimm(tl,24,tl);
  }
  if (opcode[i]==0x2C) { // SDL
    if(rs2[i]) emit_shrdimm(tl,th,16,temp2);
    // Write two msb into two least significant bytes
    if(rs2[i]) emit_rorimm(th,16,th);
    emit_writehword_indexed(th,-2,temp);
    if(rs2[i]) emit_rorimm(th,16,th);
  }
  if (opcode[i]==0x2D) { // SDR
    if(rs2[i]) emit_shldimm(th,tl,8,temp2);
    // Write 3 lsb into three most significant bytes
    emit_writebyte_indexed(tl,-1,temp);
    if(rs2[i]) emit_rorimm(tl,8,tl);
    emit_writehword_indexed(tl,0,temp);
    if(rs2[i]) emit_rorimm(tl,24,tl);
  }
  done2=(int)out;
  emit_jmp(0);
  // 3
  set_jump_target(case3,(int)out);
  if (opcode[i]==0x2A) { // SWL
    // Write msb into least significant byte
    if(rs2[i]) emit_rorimm(tl,24,tl);
    emit_writebyte_indexed(tl,-3,temp);
    if(rs2[i]) emit_rorimm(tl,8,tl);
  }
  if (opcode[i]==0x2E) { // SWR
    // Write entire word
    emit_writeword_indexed(tl,-3,temp);
  }
  if (opcode[i]==0x2C) { // SDL
    if(rs2[i]) emit_shrdimm(tl,th,24,temp2);
    // Write msb into least significant byte
    if(rs2[i]) emit_rorimm(th,24,th);
    emit_writebyte_indexed(th,-3,temp);
    if(rs2[i]) emit_rorimm(th,8,th);
  }
  if (opcode[i]==0x2D) { // SDR
    if(rs2[i]) emit_mov(th,temp2);
    // Write entire word
    emit_writeword_indexed(tl,-3,temp);
  }
  set_jump_target(done0,(int)out);
  set_jump_target(done1,(int)out);
  set_jump_target(done2,(int)out);
  if (opcode[i]==0x2C) { // SDL
    emit_testimm(temp,4);
    done0=(int)out;
    emit_jne(0);
    emit_andimm(temp,~3,temp);
    emit_writeword_indexed(temp2,4,temp);
    set_jump_target(done0,(int)out);
  }
  if (opcode[i]==0x2D) { // SDR
    emit_testimm(temp,4);
    done0=(int)out;
    emit_jeq(0);
    emit_andimm(temp,~3,temp);
    emit_writeword_indexed(temp2,-4,temp);
    set_jump_target(done0,(int)out);
  }
  if(!c||!memtarget)
    add_stub(STORELR_STUB,jaddr,(int)out,i,(int)i_regs,temp,ccadj[i],reglist);
  if(!using_tlb) {
    #ifdef RAM_OFFSET
    int map=get_reg(i_regs->regmap,ROREG);
    if(map<0) map=HOST_TEMPREG;
    gen_orig_addr_w(temp,map);
    #else
    emit_addimm_no_flags((u_int)0x80000000-(u_int)rdram,temp);
    #endif
    #if defined(HOST_IMM8)
    int ir=get_reg(i_regs->regmap,INVCP);
    assert(ir>=0);
    emit_cmpmem_indexedsr12_reg(ir,temp,1);
    #else
    emit_cmpmem_indexedsr12_imm((int)invalid_code,temp,1);
    #endif
    #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT)
    emit_callne(invalidate_addr_reg[temp]);
    #else
    jaddr2=(int)out;
    emit_jne(0);
    add_stub(INVCODE_STUB,jaddr2,(int)out,reglist|(1<<HOST_CCREG),temp,0,0,0);
    #endif
  }
  /*
    emit_pusha();
    //save_regs(0x100f);
        emit_readword((int)&last_count,ECX);
        if(get_reg(i_regs->regmap,CCREG)<0)
          emit_loadreg(CCREG,HOST_CCREG);
        emit_add(HOST_CCREG,ECX,HOST_CCREG);
        emit_addimm(HOST_CCREG,2*ccadj[i],HOST_CCREG);
        emit_writeword(HOST_CCREG,(int)&Count);
    emit_call((int)memdebug);
    emit_popa();
    //restore_regs(0x100f);
  /**/
}

void c1ls_assemble(int i,struct regstat *i_regs)
{
#ifndef DISABLE_COP1
  int s,th,tl;
  int temp,ar;
  int map=-1;
  int offset;
  int c=0;
  int jaddr,jaddr2=0,jaddr3,type;
  int agr=AGEN1+(i&1);
  u_int hr,reglist=0;
  th=get_reg(i_regs->regmap,FTEMP|64);
  tl=get_reg(i_regs->regmap,FTEMP);
  s=get_reg(i_regs->regmap,rs1[i]);
  temp=get_reg(i_regs->regmap,agr);
  if(temp<0) temp=get_reg(i_regs->regmap,-1);
  offset=imm[i];
  assert(tl>=0);
  assert(rs1[i]>0);
  assert(temp>=0);
  for(hr=0;hr<HOST_REGS;hr++) {
    if(i_regs->regmap[hr]>=0) reglist|=1<<hr;
  }
  if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG);
  if (opcode[i]==0x31||opcode[i]==0x35) // LWC1/LDC1
  {
    // Loads use a temporary register which we need to save
    reglist|=1<<temp;
  }
  if (opcode[i]==0x39||opcode[i]==0x3D) // SWC1/SDC1
    ar=temp;
  else // LWC1/LDC1
    ar=tl;
  //if(s<0) emit_loadreg(rs1[i],ar); //address_generation does this now
  //else c=(i_regs->wasconst>>s)&1;
  if(s>=0) c=(i_regs->wasconst>>s)&1;
  // Check cop1 unusable
  if(!cop1_usable) {
    signed char rs=get_reg(i_regs->regmap,CSREG);
    assert(rs>=0);
    emit_testimm(rs,0x20000000);
    jaddr=(int)out;
    emit_jeq(0);
    add_stub(FP_STUB,jaddr,(int)out,i,rs,(int)i_regs,is_delayslot,0);
    cop1_usable=1;
  }
  if (opcode[i]==0x39) { // SWC1 (get float address)
    emit_readword((int)&reg_cop1_simple[(source[i]>>16)&0x1f],tl);
  }
  if (opcode[i]==0x3D) { // SDC1 (get double address)
    emit_readword((int)&reg_cop1_double[(source[i]>>16)&0x1f],tl);
  }
  // Generate address + offset
  if(!using_tlb) {
    if(!c)
      emit_cmpimm(offset||c||s<0?ar:s,RAM_SIZE);
  }
  else
  {
    map=get_reg(i_regs->regmap,TLREG);
    assert(map>=0);
    if (opcode[i]==0x31||opcode[i]==0x35) { // LWC1/LDC1
      map=do_tlb_r(offset||c||s<0?ar:s,ar,map,0,-1,-1,c,constmap[i][s]+offset);
    }
    if (opcode[i]==0x39||opcode[i]==0x3D) { // SWC1/SDC1
      map=do_tlb_w(offset||c||s<0?ar:s,ar,map,0,c,constmap[i][s]+offset);
    }
  }
  if (opcode[i]==0x39) { // SWC1 (read float)
    emit_readword_indexed(0,tl,tl);
  }
  if (opcode[i]==0x3D) { // SDC1 (read double)
    emit_readword_indexed(4,tl,th);
    emit_readword_indexed(0,tl,tl);
  }
  if (opcode[i]==0x31) { // LWC1 (get target address)
    emit_readword((int)&reg_cop1_simple[(source[i]>>16)&0x1f],temp);
  }
  if (opcode[i]==0x35) { // LDC1 (get target address)
    emit_readword((int)&reg_cop1_double[(source[i]>>16)&0x1f],temp);
  }
  if(!using_tlb) {
    if(!c) {
      jaddr2=(int)out;
      emit_jno(0);
    }
    else if(((signed int)(constmap[i][s]+offset))>=(signed int)0x80000000+RAM_SIZE) {
      jaddr2=(int)out;
      emit_jmp(0); // inline_readstub/inline_writestub?  Very rare case
    }
    #ifdef DESTRUCTIVE_SHIFT
    if (opcode[i]==0x39||opcode[i]==0x3D) { // SWC1/SDC1
      if(!offset&&!c&&s>=0) emit_mov(s,ar);
    }
    #endif
  }else{
    if (opcode[i]==0x31||opcode[i]==0x35) { // LWC1/LDC1
      do_tlb_r_branch(map,c,constmap[i][s]+offset,&jaddr2);
    }
    if (opcode[i]==0x39||opcode[i]==0x3D) { // SWC1/SDC1
      do_tlb_w_branch(map,c,constmap[i][s]+offset,&jaddr2);
    }
  }
  if (opcode[i]==0x31) { // LWC1
    //if(s>=0&&!c&&!offset) emit_mov(s,tl);
    //gen_tlb_addr_r(ar,map);
    //emit_readword_indexed((int)rdram-0x80000000,tl,tl);
    #ifdef HOST_IMM_ADDR32
    if(c) emit_readword_tlb(constmap[i][s]+offset,map,tl);
    else
    #endif
    emit_readword_indexed_tlb(0,offset||c||s<0?tl:s,map,tl);
    type=LOADW_STUB;
  }
  if (opcode[i]==0x35) { // LDC1
    assert(th>=0);
    //if(s>=0&&!c&&!offset) emit_mov(s,tl);
    //gen_tlb_addr_r(ar,map);
    //emit_readword_indexed((int)rdram-0x80000000,tl,th);
    //emit_readword_indexed((int)rdram-0x7FFFFFFC,tl,tl);
    #ifdef HOST_IMM_ADDR32
    if(c) emit_readdword_tlb(constmap[i][s]+offset,map,th,tl);
    else
    #endif
    emit_readdword_indexed_tlb(0,offset||c||s<0?tl:s,map,th,tl);
    type=LOADD_STUB;
  }
  if (opcode[i]==0x39) { // SWC1
    //emit_writeword_indexed(tl,(int)rdram-0x80000000,temp);
    emit_writeword_indexed_tlb(tl,0,offset||c||s<0?temp:s,map,temp);
    type=STOREW_STUB;
  }
  if (opcode[i]==0x3D) { // SDC1
    assert(th>=0);
    //emit_writeword_indexed(th,(int)rdram-0x80000000,temp);
    //emit_writeword_indexed(tl,(int)rdram-0x7FFFFFFC,temp);
    emit_writedword_indexed_tlb(th,tl,0,offset||c||s<0?temp:s,map,temp);
    type=STORED_STUB;
  }
  if(!using_tlb) {
    if (opcode[i]==0x39||opcode[i]==0x3D) { // SWC1/SDC1
      #ifndef DESTRUCTIVE_SHIFT
      temp=offset||c||s<0?ar:s;
      #endif
      #if defined(HOST_IMM8)
      int ir=get_reg(i_regs->regmap,INVCP);
      assert(ir>=0);
      emit_cmpmem_indexedsr12_reg(ir,temp,1);
      #else
      emit_cmpmem_indexedsr12_imm((int)invalid_code,temp,1);
      #endif
      #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT)
      emit_callne(invalidate_addr_reg[temp]);
      #else
      jaddr3=(int)out;
      emit_jne(0);
      add_stub(INVCODE_STUB,jaddr3,(int)out,reglist|(1<<HOST_CCREG),temp,0,0,0);
      #endif
    }
  }
  if(jaddr2) add_stub(type,jaddr2,(int)out,i,offset||c||s<0?ar:s,(int)i_regs,ccadj[i],reglist);
  if (opcode[i]==0x31) { // LWC1 (write float)
    emit_writeword_indexed(tl,0,temp);
  }
  if (opcode[i]==0x35) { // LDC1 (write double)
    emit_writeword_indexed(th,4,temp);
    emit_writeword_indexed(tl,0,temp);
  }
  //if(opcode[i]==0x39)
  /*if(opcode[i]==0x39||opcode[i]==0x31)
  {
    emit_pusha();
        emit_readword((int)&last_count,ECX);
        if(get_reg(i_regs->regmap,CCREG)<0)
          emit_loadreg(CCREG,HOST_CCREG);
        emit_add(HOST_CCREG,ECX,HOST_CCREG);
        emit_addimm(HOST_CCREG,2*ccadj[i],HOST_CCREG);
        emit_writeword(HOST_CCREG,(int)&Count);
    emit_call((int)memdebug);
    emit_popa();
  }/**/
#else
  cop1_unusable(i, i_regs);
#endif
}

void c2ls_assemble(int i,struct regstat *i_regs)
{
  int s,tl;
  int ar;
  int offset;
  int memtarget=0,c=0;
  int jaddr2=0,jaddr3,type;
  int agr=AGEN1+(i&1);
  u_int hr,reglist=0;
  u_int copr=(source[i]>>16)&0x1f;
  s=get_reg(i_regs->regmap,rs1[i]);
  tl=get_reg(i_regs->regmap,FTEMP);
  offset=imm[i];
  assert(rs1[i]>0);
  assert(tl>=0);
  assert(!using_tlb);

  for(hr=0;hr<HOST_REGS;hr++) {
    if(i_regs->regmap[hr]>=0) reglist|=1<<hr;
  }
  if(i_regs->regmap[HOST_CCREG]==CCREG)
    reglist&=~(1<<HOST_CCREG);

  // get the address
  if (opcode[i]==0x3a) { // SWC2
    ar=get_reg(i_regs->regmap,agr);
    if(ar<0) ar=get_reg(i_regs->regmap,-1);
    reglist|=1<<ar;
  } else { // LWC2
    ar=tl;
  }
  if(s>=0) c=(i_regs->wasconst>>s)&1;
  memtarget=c&&(((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE);
  if (!offset&&!c&&s>=0) ar=s;
  assert(ar>=0);

  if (opcode[i]==0x3a) { // SWC2
    cop2_get_dreg(copr,tl,HOST_TEMPREG);
    type=STOREW_STUB;
  }
  else
    type=LOADW_STUB;

  if(c&&!memtarget) {
    jaddr2=(int)out;
    emit_jmp(0); // inline_readstub/inline_writestub?
  }
  else {
    if(!c) {
      emit_cmpimm(offset||c||s<0?ar:s,RAM_SIZE);
      jaddr2=(int)out;
      emit_jno(0);
    }
    if (opcode[i]==0x32) { // LWC2
      #ifdef HOST_IMM_ADDR32
      if(c) emit_readword_tlb(constmap[i][s]+offset,-1,tl);
      else
      #endif
      emit_readword_indexed(0,ar,tl);
    }
    if (opcode[i]==0x3a) { // SWC2
      #ifdef DESTRUCTIVE_SHIFT
      if(!offset&&!c&&s>=0) emit_mov(s,ar);
      #endif
      emit_writeword_indexed(tl,0,ar);
    }
  }
  if(jaddr2)
    add_stub(type,jaddr2,(int)out,i,ar,(int)i_regs,ccadj[i],reglist);
  if (opcode[i]==0x3a) { // SWC2
#if defined(HOST_IMM8)
    int ir=get_reg(i_regs->regmap,INVCP);
    assert(ir>=0);
    emit_cmpmem_indexedsr12_reg(ir,ar,1);
#else
    emit_cmpmem_indexedsr12_imm((int)invalid_code,ar,1);
#endif
    #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT)
    emit_callne(invalidate_addr_reg[ar]);
    #else
    jaddr3=(int)out;
    emit_jne(0);
    add_stub(INVCODE_STUB,jaddr3,(int)out,reglist|(1<<HOST_CCREG),ar,0,0,0);
    #endif
  }
  if (opcode[i]==0x32) { // LWC2
    cop2_put_dreg(copr,tl,HOST_TEMPREG);
  }
}

#ifndef multdiv_assemble
void multdiv_assemble(int i,struct regstat *i_regs)
{
  printf("Need multdiv_assemble for this architecture.\n");
  exit(1);
}
#endif

void mov_assemble(int i,struct regstat *i_regs)
{
  //if(opcode2[i]==0x10||opcode2[i]==0x12) { // MFHI/MFLO
  //if(opcode2[i]==0x11||opcode2[i]==0x13) { // MTHI/MTLO
  if(rt1[i]) {
    signed char sh,sl,th,tl;
    th=get_reg(i_regs->regmap,rt1[i]|64);
    tl=get_reg(i_regs->regmap,rt1[i]);
    //assert(tl>=0);
    if(tl>=0) {
      sh=get_reg(i_regs->regmap,rs1[i]|64);
      sl=get_reg(i_regs->regmap,rs1[i]);
      if(sl>=0) emit_mov(sl,tl);
      else emit_loadreg(rs1[i],tl);
      if(th>=0) {
        if(sh>=0) emit_mov(sh,th);
        else emit_loadreg(rs1[i]|64,th);
      }
    }
  }
}

#ifndef fconv_assemble
void fconv_assemble(int i,struct regstat *i_regs)
{
  printf("Need fconv_assemble for this architecture.\n");
  exit(1);
}
#endif

#if 0
void float_assemble(int i,struct regstat *i_regs)
{
  printf("Need float_assemble for this architecture.\n");
  exit(1);
}
#endif

void syscall_assemble(int i,struct regstat *i_regs)
{
  signed char ccreg=get_reg(i_regs->regmap,CCREG);
  assert(ccreg==HOST_CCREG);
  assert(!is_delayslot);
  emit_movimm(start+i*4,EAX); // Get PC
  emit_addimm(HOST_CCREG,CLOCK_DIVIDER*ccadj[i],HOST_CCREG); // CHECK: is this right?  There should probably be an extra cycle...
  emit_jmp((int)jump_syscall_hle); // XXX
}

void hlecall_assemble(int i,struct regstat *i_regs)
{
  signed char ccreg=get_reg(i_regs->regmap,CCREG);
  assert(ccreg==HOST_CCREG);
  assert(!is_delayslot);
  emit_movimm(start+i*4+4,0); // Get PC
  emit_movimm((int)psxHLEt[source[i]&7],1);
  emit_addimm(HOST_CCREG,CLOCK_DIVIDER*ccadj[i],HOST_CCREG); // XXX
  emit_jmp((int)jump_hlecall);
}

void intcall_assemble(int i,struct regstat *i_regs)
{
  signed char ccreg=get_reg(i_regs->regmap,CCREG);
  assert(ccreg==HOST_CCREG);
  assert(!is_delayslot);
  emit_movimm(start+i*4,0); // Get PC
  emit_addimm(HOST_CCREG,CLOCK_DIVIDER*ccadj[i],HOST_CCREG);
  emit_jmp((int)jump_intcall);
}

void ds_assemble(int i,struct regstat *i_regs)
{
  is_delayslot=1;
  switch(itype[i]) {
    case ALU:
      alu_assemble(i,i_regs);break;
    case IMM16:
      imm16_assemble(i,i_regs);break;
    case SHIFT:
      shift_assemble(i,i_regs);break;
    case SHIFTIMM:
      shiftimm_assemble(i,i_regs);break;
    case LOAD:
      load_assemble(i,i_regs);break;
    case LOADLR:
      loadlr_assemble(i,i_regs);break;
    case STORE:
      store_assemble(i,i_regs);break;
    case STORELR:
      storelr_assemble(i,i_regs);break;
    case COP0:
      cop0_assemble(i,i_regs);break;
    case COP1:
      cop1_assemble(i,i_regs);break;
    case C1LS:
      c1ls_assemble(i,i_regs);break;
    case COP2:
      cop2_assemble(i,i_regs);break;
    case C2LS:
      c2ls_assemble(i,i_regs);break;
    case C2OP:
      c2op_assemble(i,i_regs);break;
    case FCONV:
      fconv_assemble(i,i_regs);break;
    case FLOAT:
      float_assemble(i,i_regs);break;
    case FCOMP:
      fcomp_assemble(i,i_regs);break;
    case MULTDIV:
      multdiv_assemble(i,i_regs);break;
    case MOV:
      mov_assemble(i,i_regs);break;
    case SYSCALL:
    case HLECALL:
    case INTCALL:
    case SPAN:
    case UJUMP:
    case RJUMP:
    case CJUMP:
    case SJUMP:
    case FJUMP:
      printf("Jump in the delay slot.  This is probably a bug.\n");
  }
  is_delayslot=0;
}

// Is the branch target a valid internal jump?
int internal_branch(uint64_t i_is32,int addr)
{
  if(addr&1) return 0; // Indirect (register) jump
  if(addr>=start && addr<start+slen*4-4)
  {
    int t=(addr-start)>>2;
    // Delay slots are not valid branch targets
    //if(t>0&&(itype[t-1]==RJUMP||itype[t-1]==UJUMP||itype[t-1]==CJUMP||itype[t-1]==SJUMP||itype[t-1]==FJUMP)) return 0;
    // 64 -> 32 bit transition requires a recompile
    /*if(is32[t]&~unneeded_reg_upper[t]&~i_is32)
    {
      if(requires_32bit[t]&~i_is32) printf("optimizable: no\n");
      else printf("optimizable: yes\n");
    }*/
    //if(is32[t]&~unneeded_reg_upper[t]&~i_is32) return 0;
#ifndef FORCE32
    if(requires_32bit[t]&~i_is32) return 0;
    else
#endif
      return 1;
  }
  return 0;
}

#ifndef wb_invalidate
void wb_invalidate(signed char pre[],signed char entry[],uint64_t dirty,uint64_t is32,
  uint64_t u,uint64_t uu)
{
  int hr;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(pre[hr]!=entry[hr]) {
        if(pre[hr]>=0) {
          if((dirty>>hr)&1) {
            if(get_reg(entry,pre[hr])<0) {
              if(pre[hr]<64) {
                if(!((u>>pre[hr])&1)) {
                  emit_storereg(pre[hr],hr);
                  if( ((is32>>pre[hr])&1) && !((uu>>pre[hr])&1) ) {
                    emit_sarimm(hr,31,hr);
                    emit_storereg(pre[hr]|64,hr);
                  }
                }
              }else{
                if(!((uu>>(pre[hr]&63))&1) && !((is32>>(pre[hr]&63))&1)) {
                  emit_storereg(pre[hr],hr);
                }
              }
            }
          }
        }
      }
    }
  }
  // Move from one register to another (no writeback)
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(pre[hr]!=entry[hr]) {
        if(pre[hr]>=0&&(pre[hr]&63)<TEMPREG) {
          int nr;
          if((nr=get_reg(entry,pre[hr]))>=0) {
            emit_mov(hr,nr);
          }
        }
      }
    }
  }
}
#endif

// Load the specified registers
// This only loads the registers given as arguments because
// we don't want to load things that will be overwritten
void load_regs(signed char entry[],signed char regmap[],int is32,int rs1,int rs2)
{
  int hr;
  // Load 32-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG&&regmap[hr]>=0) {
      if(entry[hr]!=regmap[hr]) {
        if(regmap[hr]==rs1||regmap[hr]==rs2)
        {
          if(regmap[hr]==0) {
            emit_zeroreg(hr);
          }
          else
          {
            emit_loadreg(regmap[hr],hr);
          }
        }
      }
    }
  }
  //Load 64-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG&&regmap[hr]>=0) {
      if(entry[hr]!=regmap[hr]) {
        if(regmap[hr]-64==rs1||regmap[hr]-64==rs2)
        {
          assert(regmap[hr]!=64);
          if((is32>>(regmap[hr]&63))&1) {
            int lr=get_reg(regmap,regmap[hr]-64);
            if(lr>=0)
              emit_sarimm(lr,31,hr);
            else
              emit_loadreg(regmap[hr],hr);
          }
          else
          {
            emit_loadreg(regmap[hr],hr);
          }
        }
      }
    }
  }
}

// Load registers prior to the start of a loop
// so that they are not loaded within the loop
static void loop_preload(signed char pre[],signed char entry[])
{
  int hr;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(pre[hr]!=entry[hr]) {
        if(entry[hr]>=0) {
          if(get_reg(pre,entry[hr])<0) {
            assem_debug("loop preload:\n");
            //printf("loop preload: %d\n",hr);
            if(entry[hr]==0) {
              emit_zeroreg(hr);
            }
            else if(entry[hr]<TEMPREG)
            {
              emit_loadreg(entry[hr],hr);
            }
            else if(entry[hr]-64<TEMPREG)
            {
              emit_loadreg(entry[hr],hr);
            }
          }
        }
      }
    }
  }
}

// Generate address for load/store instruction
// goes to AGEN for writes, FTEMP for LOADLR and cop1/2 loads
void address_generation(int i,struct regstat *i_regs,signed char entry[])
{
  if(itype[i]==LOAD||itype[i]==LOADLR||itype[i]==STORE||itype[i]==STORELR||itype[i]==C1LS||itype[i]==C2LS) {
    int ra=-1;
    int agr=AGEN1+(i&1);
    int mgr=MGEN1+(i&1);
    if(itype[i]==LOAD) {
      ra=get_reg(i_regs->regmap,rt1[i]);
      if(ra<0) ra=get_reg(i_regs->regmap,-1); 
      assert(ra>=0);
    }
    if(itype[i]==LOADLR) {
      ra=get_reg(i_regs->regmap,FTEMP);
    }
    if(itype[i]==STORE||itype[i]==STORELR) {
      ra=get_reg(i_regs->regmap,agr);
      if(ra<0) ra=get_reg(i_regs->regmap,-1);
    }
    if(itype[i]==C1LS||itype[i]==C2LS) {
      if ((opcode[i]&0x3b)==0x31||(opcode[i]&0x3b)==0x32) // LWC1/LDC1/LWC2/LDC2
        ra=get_reg(i_regs->regmap,FTEMP);
      else { // SWC1/SDC1/SWC2/SDC2
        ra=get_reg(i_regs->regmap,agr);
        if(ra<0) ra=get_reg(i_regs->regmap,-1);
      }
    }
    int rs=get_reg(i_regs->regmap,rs1[i]);
    int rm=get_reg(i_regs->regmap,TLREG);
    if(ra>=0) {
      int offset=imm[i];
      int c=(i_regs->wasconst>>rs)&1;
      if(rs1[i]==0) {
        // Using r0 as a base address
        /*if(rm>=0) {
          if(!entry||entry[rm]!=mgr) {
            generate_map_const(offset,rm);
          } // else did it in the previous cycle
        }*/
        if(!entry||entry[ra]!=agr) {
          if (opcode[i]==0x22||opcode[i]==0x26) {
            emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR
          }else if (opcode[i]==0x1a||opcode[i]==0x1b) {
            emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR
          }else{
            emit_movimm(offset,ra);
          }
        } // else did it in the previous cycle
      }
      else if(rs<0) {
        if(!entry||entry[ra]!=rs1[i])
          emit_loadreg(rs1[i],ra);
        //if(!entry||entry[ra]!=rs1[i])
        //  printf("poor load scheduling!\n");
      }
      else if(c) {
        if(rm>=0) {
          if(!entry||entry[rm]!=mgr) {
            if(itype[i]==STORE||itype[i]==STORELR||(opcode[i]&0x3b)==0x39||(opcode[i]&0x3b)==0x3a) {
              // Stores to memory go thru the mapper to detect self-modifying
              // code, loads don't.
              if((unsigned int)(constmap[i][rs]+offset)>=0xC0000000 ||
                 (unsigned int)(constmap[i][rs]+offset)<0x80000000+RAM_SIZE )
                generate_map_const(constmap[i][rs]+offset,rm);
            }else{
              if((signed int)(constmap[i][rs]+offset)>=(signed int)0xC0000000)
                generate_map_const(constmap[i][rs]+offset,rm);
            }
          }
        }
        if(rs1[i]!=rt1[i]||itype[i]!=LOAD) {
          if(!entry||entry[ra]!=agr) {
            if (opcode[i]==0x22||opcode[i]==0x26) {
              emit_movimm((constmap[i][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR
            }else if (opcode[i]==0x1a||opcode[i]==0x1b) {
              emit_movimm((constmap[i][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR
            }else{
              #ifdef HOST_IMM_ADDR32
              if((itype[i]!=LOAD&&(opcode[i]&0x3b)!=0x31&&(opcode[i]&0x3b)!=0x32) || // LWC1/LDC1/LWC2/LDC2
                 (using_tlb&&((signed int)constmap[i][rs]+offset)>=(signed int)0xC0000000))
              #endif
              emit_movimm(constmap[i][rs]+offset,ra);
            }
          } // else did it in the previous cycle
        } // else load_consts already did it
      }
      if(offset&&!c&&rs1[i]) {
        if(rs>=0) {
          emit_addimm(rs,offset,ra);
        }else{
          emit_addimm(ra,offset,ra);
        }
      }
    }
  }
  // Preload constants for next instruction
  if(itype[i+1]==LOAD||itype[i+1]==LOADLR||itype[i+1]==STORE||itype[i+1]==STORELR||itype[i+1]==C1LS||itype[i+1]==C2LS) {
    int agr,ra;
    #ifndef HOST_IMM_ADDR32
    // Mapper entry
    agr=MGEN1+((i+1)&1);
    ra=get_reg(i_regs->regmap,agr);
    if(ra>=0) {
      int rs=get_reg(regs[i+1].regmap,rs1[i+1]);
      int offset=imm[i+1];
      int c=(regs[i+1].wasconst>>rs)&1;
      if(c) {
        if(itype[i+1]==STORE||itype[i+1]==STORELR
           ||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1, SWC2/SDC2
          // Stores to memory go thru the mapper to detect self-modifying
          // code, loads don't.
          if((unsigned int)(constmap[i+1][rs]+offset)>=0xC0000000 ||
             (unsigned int)(constmap[i+1][rs]+offset)<0x80000000+RAM_SIZE )
            generate_map_const(constmap[i+1][rs]+offset,ra);
        }else{
          if((signed int)(constmap[i+1][rs]+offset)>=(signed int)0xC0000000)
            generate_map_const(constmap[i+1][rs]+offset,ra);
        }
      }
      /*else if(rs1[i]==0) {
        generate_map_const(offset,ra);
      }*/
    }
    #endif
    // Actual address
    agr=AGEN1+((i+1)&1);
    ra=get_reg(i_regs->regmap,agr);
    if(ra>=0) {
      int rs=get_reg(regs[i+1].regmap,rs1[i+1]);
      int offset=imm[i+1];
      int c=(regs[i+1].wasconst>>rs)&1;
      if(c&&(rs1[i+1]!=rt1[i+1]||itype[i+1]!=LOAD)) {
        if (opcode[i+1]==0x22||opcode[i+1]==0x26) {
          emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR
        }else if (opcode[i+1]==0x1a||opcode[i+1]==0x1b) {
          emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR
        }else{
          #ifdef HOST_IMM_ADDR32
          if((itype[i+1]!=LOAD&&(opcode[i+1]&0x3b)!=0x31&&(opcode[i+1]&0x3b)!=0x32) || // LWC1/LDC1/LWC2/LDC2
             (using_tlb&&((signed int)constmap[i+1][rs]+offset)>=(signed int)0xC0000000))
          #endif
          emit_movimm(constmap[i+1][rs]+offset,ra);
        }
      }
      else if(rs1[i+1]==0) {
        // Using r0 as a base address
        if (opcode[i+1]==0x22||opcode[i+1]==0x26) {
          emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR
        }else if (opcode[i+1]==0x1a||opcode[i+1]==0x1b) {
          emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR
        }else{
          emit_movimm(offset,ra);
        }
      }
    }
  }
}

int get_final_value(int hr, int i, int *value)
{
  int reg=regs[i].regmap[hr];
  while(i<slen-1) {
    if(regs[i+1].regmap[hr]!=reg) break;
    if(!((regs[i+1].isconst>>hr)&1)) break;
    if(bt[i+1]) break;
    i++;
  }
  if(i<slen-1) {
    if(itype[i]==UJUMP||itype[i]==RJUMP||itype[i]==CJUMP||itype[i]==SJUMP) {
      *value=constmap[i][hr];
      return 1;
    }
    if(!bt[i+1]) {
      if(itype[i+1]==UJUMP||itype[i+1]==RJUMP||itype[i+1]==CJUMP||itype[i+1]==SJUMP) {
        // Load in delay slot, out-of-order execution
        if(itype[i+2]==LOAD&&rs1[i+2]==reg&&rt1[i+2]==reg&&((regs[i+1].wasconst>>hr)&1))
        {
          #ifdef HOST_IMM_ADDR32
          if(!using_tlb||((signed int)constmap[i][hr]+imm[i+2])<(signed int)0xC0000000) return 0;
          #endif
          // Precompute load address
          *value=constmap[i][hr]+imm[i+2];
          return 1;
        }
      }
      if(itype[i+1]==LOAD&&rs1[i+1]==reg&&rt1[i+1]==reg)
      {
        #ifdef HOST_IMM_ADDR32
        if(!using_tlb||((signed int)constmap[i][hr]+imm[i+1])<(signed int)0xC0000000) return 0;
        #endif
        // Precompute load address
        *value=constmap[i][hr]+imm[i+1];
        //printf("c=%x imm=%x\n",(int)constmap[i][hr],imm[i+1]);
        return 1;
      }
    }
  }
  *value=constmap[i][hr];
  //printf("c=%x\n",(int)constmap[i][hr]);
  if(i==slen-1) return 1;
  if(reg<64) {
    return !((unneeded_reg[i+1]>>reg)&1);
  }else{
    return !((unneeded_reg_upper[i+1]>>reg)&1);
  }
}

// Load registers with known constants
void load_consts(signed char pre[],signed char regmap[],int is32,int i)
{
  int hr;
  // Load 32-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG&&regmap[hr]>=0) {
      //if(entry[hr]!=regmap[hr]) {
      if(i==0||!((regs[i-1].isconst>>hr)&1)||pre[hr]!=regmap[hr]||bt[i]) {
        if(((regs[i].isconst>>hr)&1)&&regmap[hr]<64&&regmap[hr]>0) {
          int value;
          if(get_final_value(hr,i,&value)) {
            if(value==0) {
              emit_zeroreg(hr);
            }
            else {
              emit_movimm(value,hr);
            }
          }
        }
      }
    }
  }
  // Load 64-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG&&regmap[hr]>=0) {
      //if(entry[hr]!=regmap[hr]) {
      if(i==0||!((regs[i-1].isconst>>hr)&1)||pre[hr]!=regmap[hr]||bt[i]) {
        if(((regs[i].isconst>>hr)&1)&&regmap[hr]>64) {
          if((is32>>(regmap[hr]&63))&1) {
            int lr=get_reg(regmap,regmap[hr]-64);
            assert(lr>=0);
            emit_sarimm(lr,31,hr);
          }
          else
          {
            int value;
            if(get_final_value(hr,i,&value)) {
              if(value==0) {
                emit_zeroreg(hr);
              }
              else {
                emit_movimm(value,hr);
              }
            }
          }
        }
      }
    }
  }
}
void load_all_consts(signed char regmap[],int is32,u_int dirty,int i)
{
  int hr;
  // Load 32-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG&&regmap[hr]>=0&&((dirty>>hr)&1)) {
      if(((regs[i].isconst>>hr)&1)&&regmap[hr]<64&&regmap[hr]>0) {
        int value=constmap[i][hr];
        if(value==0) {
          emit_zeroreg(hr);
        }
        else {
          emit_movimm(value,hr);
        }
      }
    }
  }
  // Load 64-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG&&regmap[hr]>=0&&((dirty>>hr)&1)) {
      if(((regs[i].isconst>>hr)&1)&&regmap[hr]>64) {
        if((is32>>(regmap[hr]&63))&1) {
          int lr=get_reg(regmap,regmap[hr]-64);
          assert(lr>=0);
          emit_sarimm(lr,31,hr);
        }
        else
        {
          int value=constmap[i][hr];
          if(value==0) {
            emit_zeroreg(hr);
          }
          else {
            emit_movimm(value,hr);
          }
        }
      }
    }
  }
}

// Write out all dirty registers (except cycle count)
void wb_dirtys(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty)
{
  int hr;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(i_regmap[hr]>0) {
        if(i_regmap[hr]!=CCREG) {
          if((i_dirty>>hr)&1) {
            if(i_regmap[hr]<64) {
              emit_storereg(i_regmap[hr],hr);
#ifndef FORCE32
              if( ((i_is32>>i_regmap[hr])&1) ) {
                #ifdef DESTRUCTIVE_WRITEBACK
                emit_sarimm(hr,31,hr);
                emit_storereg(i_regmap[hr]|64,hr);
                #else
                emit_sarimm(hr,31,HOST_TEMPREG);
                emit_storereg(i_regmap[hr]|64,HOST_TEMPREG);
                #endif
              }
#endif
            }else{
              if( !((i_is32>>(i_regmap[hr]&63))&1) ) {
                emit_storereg(i_regmap[hr],hr);
              }
            }
          }
        }
      }
    }
  }
}
// Write out dirty registers that we need to reload (pair with load_needed_regs)
// This writes the registers not written by store_regs_bt
void wb_needed_dirtys(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty,int addr)
{
  int hr;
  int t=(addr-start)>>2;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(i_regmap[hr]>0) {
        if(i_regmap[hr]!=CCREG) {
          if(i_regmap[hr]==regs[t].regmap_entry[hr] && ((regs[t].dirty>>hr)&1) && !(((i_is32&~regs[t].was32&~unneeded_reg_upper[t])>>(i_regmap[hr]&63))&1)) {
            if((i_dirty>>hr)&1) {
              if(i_regmap[hr]<64) {
                emit_storereg(i_regmap[hr],hr);
#ifndef FORCE32
                if( ((i_is32>>i_regmap[hr])&1) ) {
                  #ifdef DESTRUCTIVE_WRITEBACK
                  emit_sarimm(hr,31,hr);
                  emit_storereg(i_regmap[hr]|64,hr);
                  #else
                  emit_sarimm(hr,31,HOST_TEMPREG);
                  emit_storereg(i_regmap[hr]|64,HOST_TEMPREG);
                  #endif
                }
#endif
              }else{
                if( !((i_is32>>(i_regmap[hr]&63))&1) ) {
                  emit_storereg(i_regmap[hr],hr);
                }
              }
            }
          }
        }
      }
    }
  }
}

// Load all registers (except cycle count)
void load_all_regs(signed char i_regmap[])
{
  int hr;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(i_regmap[hr]==0) {
        emit_zeroreg(hr);
      }
      else
      if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG)
      {
        emit_loadreg(i_regmap[hr],hr);
      }
    }
  }
}

// Load all current registers also needed by next instruction
void load_needed_regs(signed char i_regmap[],signed char next_regmap[])
{
  int hr;
  for(hr=0;hr<HOST_REGS;hr++) {
    if(hr!=EXCLUDE_REG) {
      if(get_reg(next_regmap,i_regmap[hr])>=0) {
        if(i_regmap[hr]==0) {
          emit_zeroreg(hr);
        }
        else
        if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG)
        {
          emit_loadreg(i_regmap[hr],hr);
        }
      }
    }
  }
}

// Load all regs, storing cycle count if necessary
void load_regs_entry(int t)
{
  int hr;
  if(is_ds[t]) emit_addimm(HOST_CCREG,CLOCK_DIVIDER,HOST_CCREG);
  else if(ccadj[t]) emit_addimm(HOST_CCREG,-ccadj[t]*CLOCK_DIVIDER,HOST_CCREG);
  if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) {
    emit_storereg(CCREG,HOST_CCREG);
  }
  // Load 32-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(regs[t].regmap_entry[hr]>=0&&regs[t].regmap_entry[hr]<64) {
      if(regs[t].regmap_entry[hr]==0) {
        emit_zeroreg(hr);
      }
      else if(regs[t].regmap_entry[hr]!=CCREG)
      {
        emit_loadreg(regs[t].regmap_entry[hr],hr);
      }
    }
  }
  // Load 64-bit regs
  for(hr=0;hr<HOST_REGS;hr++) {
    if(regs[t].regmap_entry[hr]>=64) {
      assert(regs[t].regmap_entry[hr]!=64);
      if((regs[t].was32>>(regs[t].regmap_entry[hr]&63))&1) {
        int lr=get_reg(regs[t].regmap_entry,regs[t].regmap_entry[hr]-64);
        if(lr<0) {
          emit_loadreg(regs[t].regmap_entry[hr],hr);
        }
        else
        {
          emit_sarimm(lr,31,hr);
        }
      }
      else
      {
        emit_loadreg(regs[t].regmap_entry[hr],hr);
      }
    }
  }
}

// Store dirty registers prior to branch
void store_regs_bt(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty,int addr)
{
  if(internal_branch(i_is32,addr))
  {
    int t=(addr-start)>>2;
    int hr;
    for(hr=0;hr<HOST_REGS;hr++) {
      if(hr!=EXCLUDE_REG) {
        if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG) {
          if(i_regmap[hr]!=regs[t].regmap_entry[hr] || !((regs[t].dirty>>hr)&1) || (((i_is32&~regs[t].was32&~unneeded_reg_upper[t])>>(i_regmap[hr]&63))&1)) {
            if((i_dirty>>hr)&1) {
              if(i_regmap[hr]<64) {
                if(!((unneeded_reg[t]>>i_regmap[hr])&1)) {
                  emit_storereg(i_regmap[hr],hr);
                  if( ((i_is32>>i_regmap[hr])&1) && !((unneeded_reg_upper[t]>>i_regmap[hr])&1) ) {
                    #ifdef DESTRUCTIVE_WRITEBACK
                    emit_sarimm(hr,31,hr);
                    emit_storereg(i_regmap[hr]|64,hr);
                    #else
                    emit_sarimm(hr,31,HOST_TEMPREG);
                    emit_storereg(i_regmap[hr]|64,HOST_TEMPREG);
                    #endif
                  }
                }
              }else{
                if( !((i_is32>>(i_regmap[hr]&63))&1) && !((unneeded_reg_upper[t]>>(i_regmap[hr]&63))&1) ) {
                  emit_storereg(i_regmap[hr],hr);
                }
              }
            }
          }
        }
      }
    }
  }
  else
  {
    // Branch out of this block, write out all dirty regs
    wb_dirtys(i_regmap,i_is32,i_dirty);
  }
}

// Load all needed registers for branch target
void load_regs_bt(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty,int addr)
{
  //if(addr>=start && addr<(start+slen*4))
  if(internal_branch(i_is32,addr))
  {
    int t=(addr-start)>>2;
    int hr;
    // Store the cycle count before loading something else
    if(i_regmap[HOST_CCREG]!=CCREG) {
      assert(i_regmap[HOST_CCREG]==-1);
    }
    if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) {
      emit_storereg(CCREG,HOST_CCREG);
    }
    // Load 32-bit regs
    for(hr=0;hr<HOST_REGS;hr++) {
      if(hr!=EXCLUDE_REG&&regs[t].regmap_entry[hr]>=0&&regs[t].regmap_entry[hr]<64) {
        #ifdef DESTRUCTIVE_WRITEBACK
        if(i_regmap[hr]!=regs[t].regmap_entry[hr] || ( !((regs[t].dirty>>hr)&1) && ((i_dirty>>hr)&1) && (((i_is32&~unneeded_reg_upper[t])>>i_regmap[hr])&1) ) || (((i_is32&~regs[t].was32&~unneeded_reg_upper[t])>>(i_regmap[hr]&63))&1)) {
        #else
        if(i_regmap[hr]!=regs[t].regmap_entry[hr] ) {
        #endif
          if(regs[t].regmap_entry[hr]==0) {
            emit_zeroreg(hr);
          }
          else if(regs[t].regmap_entry[hr]!=CCREG)
          {
            emit_loadreg(regs[t].regmap_entry[hr],hr);
          }
        }
      }
    }
    //Load 64-bit regs
    for(hr=0;hr<HOST_REGS;hr++) {
      if(hr!=EXCLUDE_REG&&regs[t].regmap_entry[hr]>=64) {
        if(i_regmap[hr]!=regs[t].regmap_entry[hr]) {
          assert(regs[t].regmap_entry[hr]!=64);
          if((i_is32>>(regs[t].regmap_entry[hr]&63))&1) {
            int lr=get_reg(regs[t].regmap_entry,regs[t].regmap_entry[hr]-64);
            if(lr<0) {
              emit_loadreg(regs[t].regmap_entry[hr],hr);
            }
            else
            {
              emit_sarimm(lr,31,hr);
            }
          }
          else
          {
            emit_loadreg(regs[t].regmap_entry[hr],hr);
          }
        }
        else if((i_is32>>(regs[t].regmap_entry[hr]&63))&1) {
          int lr=get_reg(regs[t].regmap_entry,regs[t].regmap_entry[hr]-64);
          assert(lr>=0);
          emit_sarimm(lr,31,hr);
        }
      }
    }
  }
}

int match_bt(signed char i_regmap[],uint64_t i_is32,uint64_t i_dirty,int addr)
{
  if(addr>=start && addr<start+slen*4-4)
  {
    int t=(addr-start)>>2;
    int hr;
    if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) return 0;
    for(hr=0;hr<HOST_REGS;hr++)
    {
      if(hr!=EXCLUDE_REG)
      {
        if(i_regmap[hr]!=regs[t].regmap_entry[hr])
        {
          if(regs[t].regmap_entry[hr]!=-1)
          {
            return 0;
          }
          else 
          if((i_dirty>>hr)&1)
          {
            if(i_regmap[hr]<64)
            {
              if(!((unneeded_reg[t]>>i_regmap[hr])&1))
                return 0;
            }
            else
            {
              if(!((unneeded_reg_upper[t]>>(i_regmap[hr]&63))&1))
                return 0;
            }
          }
        }
        else // Same register but is it 32-bit or dirty?
        if(i_regmap[hr]>=0)
        {
          if(!((regs[t].dirty>>hr)&1))
          {
            if((i_dirty>>hr)&1)
            {
              if(!((unneeded_reg[t]>>i_regmap[hr])&1))
              {
                //printf("%x: dirty no match\n",addr);
                return 0;
              }
            }
          }
          if((((regs[t].was32^i_is32)&~unneeded_reg_upper[t])>>(i_regmap[hr]&63))&1)
          {
            //printf("%x: is32 no match\n",addr);
            return 0;
          }
        }
      }
    }
    //if(is32[t]&~unneeded_reg_upper[t]&~i_is32) return 0;
#ifndef FORCE32
    if(requires_32bit[t]&~i_is32) return 0;
#endif
    // Delay slots are not valid branch targets
    //if(t>0&&(itype[t-1]==RJUMP||itype[t-1]==UJUMP||itype[t-1]==CJUMP||itype[t-1]==SJUMP||itype[t-1]==FJUMP)) return 0;
    // Delay slots require additional processing, so do not match
    if(is_ds[t]) return 0;
  }
  else
  {
    int hr;
    for(hr=0;hr<HOST_REGS;hr++)
    {
      if(hr!=EXCLUDE_REG)
      {
        if(i_regmap[hr]>=0)
        {
          if(hr!=HOST_CCREG||i_regmap[hr]!=CCREG)
          {
            if((i_dirty>>hr)&1)
            {
              return 0;
            }
          }
        }
      }
    }
  }
  return 1;
}

// Used when a branch jumps into the delay slot of another branch
void ds_assemble_entry(int i)
{
  int t=(ba[i]-start)>>2;
  if(!instr_addr[t]) instr_addr[t]=(u_int)out;
  assem_debug("Assemble delay slot at %x\n",ba[i]);
  assem_debug("<->\n");
  if(regs[t].regmap_entry[HOST_CCREG]==CCREG&&regs[t].regmap[HOST_CCREG]!=CCREG)
    wb_register(CCREG,regs[t].regmap_entry,regs[t].wasdirty,regs[t].was32);
  load_regs(regs[t].regmap_entry,regs[t].regmap,regs[t].was32,rs1[t],rs2[t]);
  address_generation(t,&regs[t],regs[t].regmap_entry);
  if(itype[t]==STORE||itype[t]==STORELR||(opcode[t]&0x3b)==0x39||(opcode[t]&0x3b)==0x3a)
    load_regs(regs[t].regmap_entry,regs[t].regmap,regs[t].was32,INVCP,INVCP);
  cop1_usable=0;
  is_delayslot=0;
  switch(itype[t]) {
    case ALU:
      alu_assemble(t,&regs[t]);break;
    case IMM16:
      imm16_assemble(t,&regs[t]);break;
    case SHIFT:
      shift_assemble(t,&regs[t]);break;
    case SHIFTIMM:
      shiftimm_assemble(t,&regs[t]);break;
    case LOAD:
      load_assemble(t,&regs[t]);break;
    case LOADLR:
      loadlr_assemble(t,&regs[t]);break;
    case STORE:
      store_assemble(t,&regs[t]);break;
    case STORELR:
      storelr_assemble(t,&regs[t]);break;
    case COP0:
      cop0_assemble(t,&regs[t]);break;
    case COP1:
      cop1_assemble(t,&regs[t]);break;
    case C1LS:
      c1ls_assemble(t,&regs[t]);break;
    case COP2:
      cop2_assemble(t,&regs[t]);break;
    case C2LS:
      c2ls_assemble(t,&regs[t]);break;
    case C2OP:
      c2op_assemble(t,&regs[t]);break;
    case FCONV:
      fconv_assemble(t,&regs[t]);break;
    case FLOAT:
      float_assemble(t,&regs[t]);break;
    case FCOMP:
      fcomp_assemble(t,&regs[t]);break;
    case MULTDIV:
      multdiv_assemble(t,&regs[t]);break;
    case MOV:
      mov_assemble(t,&regs[t]);break;
    case SYSCALL:
    case HLECALL:
    case INTCALL:
    case SPAN:
    case UJUMP:
    case RJUMP:
    case CJUMP:
    case SJUMP:
    case FJUMP:
      printf("Jump in the delay slot.  This is probably a bug.\n");
  }
  store_regs_bt(regs[t].regmap,regs[t].is32,regs[t].dirty,ba[i]+4);
  load_regs_bt(regs[t].regmap,regs[t].is32,regs[t].dirty,ba[i]+4);
  if(internal_branch(regs[t].is32,ba[i]+4))
    assem_debug("branch: internal\n");
  else
    assem_debug("branch: external\n");
  assert(internal_branch(regs[t].is32,ba[i]+4));
  add_to_linker((int)out,ba[i]+4,internal_branch(regs[t].is32,ba[i]+4));
  emit_jmp(0);
}

void do_cc(int i,signed char i_regmap[],int *adj,int addr,int taken,int invert)
{
  int count;
  int jaddr;
  int idle=0;
  if(itype[i]==RJUMP)
  {
    *adj=0;
  }
  //if(ba[i]>=start && ba[i]<(start+slen*4))
  if(internal_branch(branch_regs[i].is32,ba[i]))
  {
    int t=(ba[i]-start)>>2;
    if(is_ds[t]) *adj=-1; // Branch into delay slot adds an extra cycle
    else *adj=ccadj[t];
  }
  else
  {
    *adj=0;
  }
  count=ccadj[i];
  if(taken==TAKEN && i==(ba[i]-start)>>2 && source[i+1]==0) {
    // Idle loop
    if(count&1) emit_addimm_and_set_flags(2*(count+2),HOST_CCREG);
    idle=(int)out;
    //emit_subfrommem(&idlecount,HOST_CCREG); // Count idle cycles
    emit_andimm(HOST_CCREG,3,HOST_CCREG);
    jaddr=(int)out;
    emit_jmp(0);
  }
  else if(*adj==0||invert) {
    emit_addimm_and_set_flags(CLOCK_DIVIDER*(count+2),HOST_CCREG);
    jaddr=(int)out;
    emit_jns(0);
  }
  else
  {
    emit_cmpimm(HOST_CCREG,-2*(count+2));
    jaddr=(int)out;
    emit_jns(0);
  }
  add_stub(CC_STUB,jaddr,idle?idle:(int)out,(*adj==0||invert||idle)?0:(count+2),i,addr,taken,0);
}

void do_ccstub(int n)
{
  literal_pool(256);
  assem_debug("do_ccstub %x\n",start+stubs[n][4]*4);
  set_jump_target(stubs[n][1],(int)out);
  int i=stubs[n][4];
  if(stubs[n][6]==NULLDS) {
    // Delay slot instruction is nullified ("likely" branch)
    wb_dirtys(regs[i].regmap,regs[i].is32,regs[i].dirty);
  }
  else if(stubs[n][6]!=TAKEN) {
    wb_dirtys(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty);
  }
  else {
    if(internal_branch(branch_regs[i].is32,ba[i]))
      wb_needed_dirtys(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
  }
  if(stubs[n][5]!=-1)
  {
    // Save PC as return address
    emit_movimm(stubs[n][5],EAX);
    emit_writeword(EAX,(int)&pcaddr);
  }
  else
  {
    // Return address depends on which way the branch goes
    if(itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      int s1l=get_reg(branch_regs[i].regmap,rs1[i]);
      int s1h=get_reg(branch_regs[i].regmap,rs1[i]|64);
      int s2l=get_reg(branch_regs[i].regmap,rs2[i]);
      int s2h=get_reg(branch_regs[i].regmap,rs2[i]|64);
      if(rs1[i]==0)
      {
        s1l=s2l;s1h=s2h;
        s2l=s2h=-1;
      }
      else if(rs2[i]==0)
      {
        s2l=s2h=-1;
      }
      if((branch_regs[i].is32>>rs1[i])&(branch_regs[i].is32>>rs2[i])&1) {
        s1h=s2h=-1;
      }
      assert(s1l>=0);
      #ifdef DESTRUCTIVE_WRITEBACK
      if(rs1[i]) {
        if((branch_regs[i].dirty>>s1l)&(branch_regs[i].is32>>rs1[i])&1)
          emit_loadreg(rs1[i],s1l);
      } 
      else {
        if((branch_regs[i].dirty>>s1l)&(branch_regs[i].is32>>rs2[i])&1)
          emit_loadreg(rs2[i],s1l);
      }
      if(s2l>=0)
        if((branch_regs[i].dirty>>s2l)&(branch_regs[i].is32>>rs2[i])&1)
          emit_loadreg(rs2[i],s2l);
      #endif
      int hr=0;
      int addr=-1,alt=-1,ntaddr=-1;
      while(hr<HOST_REGS)
      {
        if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
           (branch_regs[i].regmap[hr]&63)!=rs1[i] &&
           (branch_regs[i].regmap[hr]&63)!=rs2[i] )
        {
          addr=hr++;break;
        }
        hr++;
      }
      while(hr<HOST_REGS)
      {
        if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
           (branch_regs[i].regmap[hr]&63)!=rs1[i] &&
           (branch_regs[i].regmap[hr]&63)!=rs2[i] )
        {
          alt=hr++;break;
        }
        hr++;
      }
      if((opcode[i]&0x2E)==6) // BLEZ/BGTZ needs another register
      {
        while(hr<HOST_REGS)
        {
          if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
             (branch_regs[i].regmap[hr]&63)!=rs1[i] &&
             (branch_regs[i].regmap[hr]&63)!=rs2[i] )
          {
            ntaddr=hr;break;
          }
          hr++;
        }
        assert(hr<HOST_REGS);
      }
      if((opcode[i]&0x2f)==4) // BEQ
      {
        #ifdef HAVE_CMOV_IMM
        if(s1h<0) {
          if(s2l>=0) emit_cmp(s1l,s2l);
          else emit_test(s1l,s1l);
          emit_cmov2imm_e_ne_compact(ba[i],start+i*4+8,addr);
        }
        else
        #endif
        {
          emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt);
          if(s1h>=0) {
            if(s2h>=0) emit_cmp(s1h,s2h);
            else emit_test(s1h,s1h);
            emit_cmovne_reg(alt,addr);
          }
          if(s2l>=0) emit_cmp(s1l,s2l);
          else emit_test(s1l,s1l);
          emit_cmovne_reg(alt,addr);
        }
      }
      if((opcode[i]&0x2f)==5) // BNE
      {
        #ifdef HAVE_CMOV_IMM
        if(s1h<0) {
          if(s2l>=0) emit_cmp(s1l,s2l);
          else emit_test(s1l,s1l);
          emit_cmov2imm_e_ne_compact(start+i*4+8,ba[i],addr);
        }
        else
        #endif
        {
          emit_mov2imm_compact(start+i*4+8,addr,ba[i],alt);
          if(s1h>=0) {
            if(s2h>=0) emit_cmp(s1h,s2h);
            else emit_test(s1h,s1h);
            emit_cmovne_reg(alt,addr);
          }
          if(s2l>=0) emit_cmp(s1l,s2l);
          else emit_test(s1l,s1l);
          emit_cmovne_reg(alt,addr);
        }
      }
      if((opcode[i]&0x2f)==6) // BLEZ
      {
        //emit_movimm(ba[i],alt);
        //emit_movimm(start+i*4+8,addr);
        emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr);
        emit_cmpimm(s1l,1);
        if(s1h>=0) emit_mov(addr,ntaddr);
        emit_cmovl_reg(alt,addr);
        if(s1h>=0) {
          emit_test(s1h,s1h);
          emit_cmovne_reg(ntaddr,addr);
          emit_cmovs_reg(alt,addr);
        }
      }
      if((opcode[i]&0x2f)==7) // BGTZ
      {
        //emit_movimm(ba[i],addr);
        //emit_movimm(start+i*4+8,ntaddr);
        emit_mov2imm_compact(ba[i],addr,start+i*4+8,ntaddr);
        emit_cmpimm(s1l,1);
        if(s1h>=0) emit_mov(addr,alt);
        emit_cmovl_reg(ntaddr,addr);
        if(s1h>=0) {
          emit_test(s1h,s1h);
          emit_cmovne_reg(alt,addr);
          emit_cmovs_reg(ntaddr,addr);
        }
      }
      if((opcode[i]==1)&&(opcode2[i]&0x2D)==0) // BLTZ
      {
        //emit_movimm(ba[i],alt);
        //emit_movimm(start+i*4+8,addr);
        emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr);
        if(s1h>=0) emit_test(s1h,s1h);
        else emit_test(s1l,s1l);
        emit_cmovs_reg(alt,addr);
      }
      if((opcode[i]==1)&&(opcode2[i]&0x2D)==1) // BGEZ
      {
        //emit_movimm(ba[i],addr);
        //emit_movimm(start+i*4+8,alt);
        emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt);
        if(s1h>=0) emit_test(s1h,s1h);
        else emit_test(s1l,s1l);
        emit_cmovs_reg(alt,addr);
      }
      if(opcode[i]==0x11 && opcode2[i]==0x08 ) {
        if(source[i]&0x10000) // BC1T
        {
          //emit_movimm(ba[i],alt);
          //emit_movimm(start+i*4+8,addr);
          emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr);
          emit_testimm(s1l,0x800000);
          emit_cmovne_reg(alt,addr);
        }
        else // BC1F
        {
          //emit_movimm(ba[i],addr);
          //emit_movimm(start+i*4+8,alt);
          emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt);
          emit_testimm(s1l,0x800000);
          emit_cmovne_reg(alt,addr);
        }
      }
      emit_writeword(addr,(int)&pcaddr);
    }
    else
    if(itype[i]==RJUMP)
    {
      int r=get_reg(branch_regs[i].regmap,rs1[i]);
      if(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]) {
        r=get_reg(branch_regs[i].regmap,RTEMP);
      }
      emit_writeword(r,(int)&pcaddr);
    }
    else {printf("Unknown branch type in do_ccstub\n");exit(1);}
  }
  // Update cycle count
  assert(branch_regs[i].regmap[HOST_CCREG]==CCREG||branch_regs[i].regmap[HOST_CCREG]==-1);
  if(stubs[n][3]) emit_addimm(HOST_CCREG,CLOCK_DIVIDER*stubs[n][3],HOST_CCREG);
  emit_call((int)cc_interrupt);
  if(stubs[n][3]) emit_addimm(HOST_CCREG,-CLOCK_DIVIDER*stubs[n][3],HOST_CCREG);
  if(stubs[n][6]==TAKEN) {
    if(internal_branch(branch_regs[i].is32,ba[i]))
      load_needed_regs(branch_regs[i].regmap,regs[(ba[i]-start)>>2].regmap_entry);
    else if(itype[i]==RJUMP) {
      if(get_reg(branch_regs[i].regmap,RTEMP)>=0)
        emit_readword((int)&pcaddr,get_reg(branch_regs[i].regmap,RTEMP));
      else
        emit_loadreg(rs1[i],get_reg(branch_regs[i].regmap,rs1[i]));
    }
  }else if(stubs[n][6]==NOTTAKEN) {
    if(i<slen-2) load_needed_regs(branch_regs[i].regmap,regmap_pre[i+2]);
    else load_all_regs(branch_regs[i].regmap);
  }else if(stubs[n][6]==NULLDS) {
    // Delay slot instruction is nullified ("likely" branch)
    if(i<slen-2) load_needed_regs(regs[i].regmap,regmap_pre[i+2]);
    else load_all_regs(regs[i].regmap);
  }else{
    load_all_regs(branch_regs[i].regmap);
  }
  emit_jmp(stubs[n][2]); // return address
  
  /* This works but uses a lot of memory...
  emit_readword((int)&last_count,ECX);
  emit_add(HOST_CCREG,ECX,EAX);
  emit_writeword(EAX,(int)&Count);
  emit_call((int)gen_interupt);
  emit_readword((int)&Count,HOST_CCREG);
  emit_readword((int)&next_interupt,EAX);
  emit_readword((int)&pending_exception,EBX);
  emit_writeword(EAX,(int)&last_count);
  emit_sub(HOST_CCREG,EAX,HOST_CCREG);
  emit_test(EBX,EBX);
  int jne_instr=(int)out;
  emit_jne(0);
  if(stubs[n][3]) emit_addimm(HOST_CCREG,-2*stubs[n][3],HOST_CCREG);
  load_all_regs(branch_regs[i].regmap);
  emit_jmp(stubs[n][2]); // return address
  set_jump_target(jne_instr,(int)out);
  emit_readword((int)&pcaddr,EAX);
  // Call get_addr_ht instead of doing the hash table here.
  // This code is executed infrequently and takes up a lot of space
  // so smaller is better.
  emit_storereg(CCREG,HOST_CCREG);
  emit_pushreg(EAX);
  emit_call((int)get_addr_ht);
  emit_loadreg(CCREG,HOST_CCREG);
  emit_addimm(ESP,4,ESP);
  emit_jmpreg(EAX);*/
}

add_to_linker(int addr,int target,int ext)
{
  link_addr[linkcount][0]=addr;
  link_addr[linkcount][1]=target;
  link_addr[linkcount][2]=ext;  
  linkcount++;
}

void ujump_assemble(int i,struct regstat *i_regs)
{
  signed char *i_regmap=i_regs->regmap;
  if(i==(ba[i]-start)>>2) assem_debug("idle loop\n");
  address_generation(i+1,i_regs,regs[i].regmap_entry);
  #ifdef REG_PREFETCH
  int temp=get_reg(branch_regs[i].regmap,PTEMP);
  if(rt1[i]==31&&temp>=0) 
  {
    int return_address=start+i*4+8;
    if(get_reg(branch_regs[i].regmap,31)>0) 
    if(i_regmap[temp]==PTEMP) emit_movimm((int)hash_table[((return_address>>16)^return_address)&0xFFFF],temp);
  }
  #endif
  if(rt1[i]==31) {
    int rt;
    unsigned int return_address;
    rt=get_reg(branch_regs[i].regmap,31);
    assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
    //assert(rt>=0);
    return_address=start+i*4+8;
    if(rt>=0) {
      #ifdef USE_MINI_HT
      if(internal_branch(branch_regs[i].is32,return_address)&&rt1[i+1]!=31) {
        int temp=-1; // note: must be ds-safe
        #ifdef HOST_TEMPREG
        temp=HOST_TEMPREG;
        #endif
        if(temp>=0) do_miniht_insert(return_address,rt,temp);
        else emit_movimm(return_address,rt);
      }
      else
      #endif
      {
        #ifdef REG_PREFETCH
        if(temp>=0) 
        {
          if(i_regmap[temp]!=PTEMP) emit_movimm((int)hash_table[((return_address>>16)^return_address)&0xFFFF],temp);
        }
        #endif
        emit_movimm(return_address,rt); // PC into link register
        #ifdef IMM_PREFETCH
        emit_prefetch(hash_table[((return_address>>16)^return_address)&0xFFFF]);
        #endif
      }
    }
  }
  ds_assemble(i+1,i_regs);
  uint64_t bc_unneeded=branch_regs[i].u;
  uint64_t bc_unneeded_upper=branch_regs[i].uu;
  bc_unneeded|=1|(1LL<<rt1[i]);
  bc_unneeded_upper|=1|(1LL<<rt1[i]);
  wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                bc_unneeded,bc_unneeded_upper);
  load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
  int cc,adj;
  cc=get_reg(branch_regs[i].regmap,CCREG);
  assert(cc==HOST_CCREG);
  store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
  #ifdef REG_PREFETCH
  if(rt1[i]==31&&temp>=0) emit_prefetchreg(temp);
  #endif
  do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0);
  if(adj) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
  load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
  if(internal_branch(branch_regs[i].is32,ba[i]))
    assem_debug("branch: internal\n");
  else
    assem_debug("branch: external\n");
  if(internal_branch(branch_regs[i].is32,ba[i])&&is_ds[(ba[i]-start)>>2]) {
    ds_assemble_entry(i);
  }
  else {
    add_to_linker((int)out,ba[i],internal_branch(branch_regs[i].is32,ba[i]));
    emit_jmp(0);
  }
}

void rjump_assemble(int i,struct regstat *i_regs)
{
  signed char *i_regmap=i_regs->regmap;
  int temp;
  int rs,cc,adj;
  rs=get_reg(branch_regs[i].regmap,rs1[i]);
  assert(rs>=0);
  if(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]) {
    // Delay slot abuse, make a copy of the branch address register
    temp=get_reg(branch_regs[i].regmap,RTEMP);
    assert(temp>=0);
    assert(regs[i].regmap[temp]==RTEMP);
    emit_mov(rs,temp);
    rs=temp;
  }
  address_generation(i+1,i_regs,regs[i].regmap_entry);
  #ifdef REG_PREFETCH
  if(rt1[i]==31) 
  {
    if((temp=get_reg(branch_regs[i].regmap,PTEMP))>=0) {
      int return_address=start+i*4+8;
      if(i_regmap[temp]==PTEMP) emit_movimm((int)hash_table[((return_address>>16)^return_address)&0xFFFF],temp);
    }
  }
  #endif
  #ifdef USE_MINI_HT
  if(rs1[i]==31) {
    int rh=get_reg(regs[i].regmap,RHASH);
    if(rh>=0) do_preload_rhash(rh);
  }
  #endif
  ds_assemble(i+1,i_regs);
  uint64_t bc_unneeded=branch_regs[i].u;
  uint64_t bc_unneeded_upper=branch_regs[i].uu;
  bc_unneeded|=1|(1LL<<rt1[i]);
  bc_unneeded_upper|=1|(1LL<<rt1[i]);
  bc_unneeded&=~(1LL<<rs1[i]);
  wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                bc_unneeded,bc_unneeded_upper);
  load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i],CCREG);
  if(rt1[i]!=0) {
    int rt,return_address;
    assert(rt1[i+1]!=rt1[i]);
    assert(rt2[i+1]!=rt1[i]);
    rt=get_reg(branch_regs[i].regmap,rt1[i]);
    assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
    assert(rt>=0);
    return_address=start+i*4+8;
    #ifdef REG_PREFETCH
    if(temp>=0) 
    {
      if(i_regmap[temp]!=PTEMP) emit_movimm((int)hash_table[((return_address>>16)^return_address)&0xFFFF],temp);
    }
    #endif
    emit_movimm(return_address,rt); // PC into link register
    #ifdef IMM_PREFETCH
    emit_prefetch(hash_table[((return_address>>16)^return_address)&0xFFFF]);
    #endif
  }
  cc=get_reg(branch_regs[i].regmap,CCREG);
  assert(cc==HOST_CCREG);
  #ifdef USE_MINI_HT
  int rh=get_reg(branch_regs[i].regmap,RHASH);
  int ht=get_reg(branch_regs[i].regmap,RHTBL);
  if(rs1[i]==31) {
    if(regs[i].regmap[rh]!=RHASH) do_preload_rhash(rh);
    do_preload_rhtbl(ht);
    do_rhash(rs,rh);
  }
  #endif
  store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,-1);
  #ifdef DESTRUCTIVE_WRITEBACK
  if((branch_regs[i].dirty>>rs)&(branch_regs[i].is32>>rs1[i])&1) {
    if(rs1[i]!=rt1[i+1]&&rs1[i]!=rt2[i+1]) {
      emit_loadreg(rs1[i],rs);
    }
  }
  #endif
  #ifdef REG_PREFETCH
  if(rt1[i]==31&&temp>=0) emit_prefetchreg(temp);
  #endif
  #ifdef USE_MINI_HT
  if(rs1[i]==31) {
    do_miniht_load(ht,rh);
  }
  #endif
  //do_cc(i,branch_regs[i].regmap,&adj,-1,TAKEN);
  //if(adj) emit_addimm(cc,2*(ccadj[i]+2-adj),cc); // ??? - Shouldn't happen
  //assert(adj==0);
  emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),HOST_CCREG);
  add_stub(CC_STUB,(int)out,jump_vaddr_reg[rs],0,i,-1,TAKEN,0);
  emit_jns(0);
  //load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,-1);
  #ifdef USE_MINI_HT
  if(rs1[i]==31) {
    do_miniht_jump(rs,rh,ht);
  }
  else
  #endif
  {
    //if(rs!=EAX) emit_mov(rs,EAX);
    //emit_jmp((int)jump_vaddr_eax);
    emit_jmp(jump_vaddr_reg[rs]);
  }
  /* Check hash table
  temp=!rs;
  emit_mov(rs,temp);
  emit_shrimm(rs,16,rs);
  emit_xor(temp,rs,rs);
  emit_movzwl_reg(rs,rs);
  emit_shlimm(rs,4,rs);
  emit_cmpmem_indexed((int)hash_table,rs,temp);
  emit_jne((int)out+14);
  emit_readword_indexed((int)hash_table+4,rs,rs);
  emit_jmpreg(rs);
  emit_cmpmem_indexed((int)hash_table+8,rs,temp);
  emit_addimm_no_flags(8,rs);
  emit_jeq((int)out-17);
  // No hit on hash table, call compiler
  emit_pushreg(temp);
//DEBUG >
#ifdef DEBUG_CYCLE_COUNT
  emit_readword((int)&last_count,ECX);
  emit_add(HOST_CCREG,ECX,HOST_CCREG);
  emit_readword((int)&next_interupt,ECX);
  emit_writeword(HOST_CCREG,(int)&Count);
  emit_sub(HOST_CCREG,ECX,HOST_CCREG);
  emit_writeword(ECX,(int)&last_count);
#endif
//DEBUG <
  emit_storereg(CCREG,HOST_CCREG);
  emit_call((int)get_addr);
  emit_loadreg(CCREG,HOST_CCREG);
  emit_addimm(ESP,4,ESP);
  emit_jmpreg(EAX);*/
  #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
  if(rt1[i]!=31&&i<slen-2&&(((u_int)out)&7)) emit_mov(13,13);
  #endif
}

void cjump_assemble(int i,struct regstat *i_regs)
{
  signed char *i_regmap=i_regs->regmap;
  int cc;
  int match;
  match=match_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
  assem_debug("match=%d\n",match);
  int s1h,s1l,s2h,s2l;
  int prev_cop1_usable=cop1_usable;
  int unconditional=0,nop=0;
  int only32=0;
  int invert=0;
  int internal=internal_branch(branch_regs[i].is32,ba[i]);
  if(i==(ba[i]-start)>>2) assem_debug("idle loop\n");
  if(!match) invert=1;
  #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
  if(i>(ba[i]-start)>>2) invert=1;
  #endif
  
  if(ooo[i]) {
    s1l=get_reg(branch_regs[i].regmap,rs1[i]);
    s1h=get_reg(branch_regs[i].regmap,rs1[i]|64);
    s2l=get_reg(branch_regs[i].regmap,rs2[i]);
    s2h=get_reg(branch_regs[i].regmap,rs2[i]|64);
  }
  else {
    s1l=get_reg(i_regmap,rs1[i]);
    s1h=get_reg(i_regmap,rs1[i]|64);
    s2l=get_reg(i_regmap,rs2[i]);
    s2h=get_reg(i_regmap,rs2[i]|64);
  }
  if(rs1[i]==0&&rs2[i]==0)
  {
    if(opcode[i]&1) nop=1;
    else unconditional=1;
    //assert(opcode[i]!=5);
    //assert(opcode[i]!=7);
    //assert(opcode[i]!=0x15);
    //assert(opcode[i]!=0x17);
  }
  else if(rs1[i]==0)
  {
    s1l=s2l;s1h=s2h;
    s2l=s2h=-1;
    only32=(regs[i].was32>>rs2[i])&1;
  }
  else if(rs2[i]==0)
  {
    s2l=s2h=-1;
    only32=(regs[i].was32>>rs1[i])&1;
  }
  else {
    only32=(regs[i].was32>>rs1[i])&(regs[i].was32>>rs2[i])&1;
  }

  if(ooo[i]) {
    // Out of order execution (delay slot first)
    //printf("OOOE\n");
    address_generation(i+1,i_regs,regs[i].regmap_entry);
    ds_assemble(i+1,i_regs);
    int adj;
    uint64_t bc_unneeded=branch_regs[i].u;
    uint64_t bc_unneeded_upper=branch_regs[i].uu;
    bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i]));
    bc_unneeded_upper&=~((1LL<<us1[i])|(1LL<<us2[i]));
    bc_unneeded|=1;
    bc_unneeded_upper|=1;
    wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                  bc_unneeded,bc_unneeded_upper);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i],rs2[i]);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
    cc=get_reg(branch_regs[i].regmap,CCREG);
    assert(cc==HOST_CCREG);
    if(unconditional) 
      store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
    //do_cc(i,branch_regs[i].regmap,&adj,unconditional?ba[i]:-1,unconditional);
    //assem_debug("cycle count (adj)\n");
    if(unconditional) {
      do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0);
      if(i!=(ba[i]-start)>>2 || source[i+1]!=0) {
        if(adj) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
        load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
        if(internal)
          assem_debug("branch: internal\n");
        else
          assem_debug("branch: external\n");
        if(internal&&is_ds[(ba[i]-start)>>2]) {
          ds_assemble_entry(i);
        }
        else {
          add_to_linker((int)out,ba[i],internal);
          emit_jmp(0);
        }
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        if(((u_int)out)&7) emit_addnop(0);
        #endif
      }
    }
    else if(nop) {
      emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),cc);
      int jaddr=(int)out;
      emit_jns(0);
      add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,NOTTAKEN,0);
    }
    else {
      int taken=0,nottaken=0,nottaken1=0;
      do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert);
      if(adj&&!invert) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
      if(!only32)
      {
        assert(s1h>=0);
        if(opcode[i]==4) // BEQ
        {
          if(s2h>=0) emit_cmp(s1h,s2h);
          else emit_test(s1h,s1h);
          nottaken1=(int)out;
          emit_jne(1);
        }
        if(opcode[i]==5) // BNE
        {
          if(s2h>=0) emit_cmp(s1h,s2h);
          else emit_test(s1h,s1h);
          if(invert) taken=(int)out;
          else add_to_linker((int)out,ba[i],internal);
          emit_jne(0);
        }
        if(opcode[i]==6) // BLEZ
        {
          emit_test(s1h,s1h);
          if(invert) taken=(int)out;
          else add_to_linker((int)out,ba[i],internal);
          emit_js(0);
          nottaken1=(int)out;
          emit_jne(1);
        }
        if(opcode[i]==7) // BGTZ
        {
          emit_test(s1h,s1h);
          nottaken1=(int)out;
          emit_js(1);
          if(invert) taken=(int)out;
          else add_to_linker((int)out,ba[i],internal);
          emit_jne(0);
        }
      } // if(!only32)
          
      //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
      assert(s1l>=0);
      if(opcode[i]==4) // BEQ
      {
        if(s2l>=0) emit_cmp(s1l,s2l);
        else emit_test(s1l,s1l);
        if(invert){
          nottaken=(int)out;
          emit_jne(1);
        }else{
          add_to_linker((int)out,ba[i],internal);
          emit_jeq(0);
        }
      }
      if(opcode[i]==5) // BNE
      {
        if(s2l>=0) emit_cmp(s1l,s2l);
        else emit_test(s1l,s1l);
        if(invert){
          nottaken=(int)out;
          emit_jeq(1);
        }else{
          add_to_linker((int)out,ba[i],internal);
          emit_jne(0);
        }
      }
      if(opcode[i]==6) // BLEZ
      {
        emit_cmpimm(s1l,1);
        if(invert){
          nottaken=(int)out;
          emit_jge(1);
        }else{
          add_to_linker((int)out,ba[i],internal);
          emit_jl(0);
        }
      }
      if(opcode[i]==7) // BGTZ
      {
        emit_cmpimm(s1l,1);
        if(invert){
          nottaken=(int)out;
          emit_jl(1);
        }else{
          add_to_linker((int)out,ba[i],internal);
          emit_jge(0);
        }
      }
      if(invert) {
        if(taken) set_jump_target(taken,(int)out);
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        if(match&&(!internal||!is_ds[(ba[i]-start)>>2])) {
          if(adj) {
            emit_addimm(cc,-CLOCK_DIVIDER*adj,cc);
            add_to_linker((int)out,ba[i],internal);
          }else{
            emit_addnop(13);
            add_to_linker((int)out,ba[i],internal*2);
          }
          emit_jmp(0);
        }else
        #endif
        {
          if(adj) emit_addimm(cc,-CLOCK_DIVIDER*adj,cc);
          store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
          load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
          if(internal)
            assem_debug("branch: internal\n");
          else
            assem_debug("branch: external\n");
          if(internal&&is_ds[(ba[i]-start)>>2]) {
            ds_assemble_entry(i);
          }
          else {
            add_to_linker((int)out,ba[i],internal);
            emit_jmp(0);
          }
        }
        set_jump_target(nottaken,(int)out);
      }

      if(nottaken1) set_jump_target(nottaken1,(int)out);
      if(adj) {
        if(!invert) emit_addimm(cc,CLOCK_DIVIDER*adj,cc);
      }
    } // (!unconditional)
  } // if(ooo)
  else
  {
    // In-order execution (branch first)
    //if(likely[i]) printf("IOL\n");
    //else
    //printf("IOE\n");
    int taken=0,nottaken=0,nottaken1=0;
    if(!unconditional&&!nop) {
      if(!only32)
      {
        assert(s1h>=0);
        if((opcode[i]&0x2f)==4) // BEQ
        {
          if(s2h>=0) emit_cmp(s1h,s2h);
          else emit_test(s1h,s1h);
          nottaken1=(int)out;
          emit_jne(2);
        }
        if((opcode[i]&0x2f)==5) // BNE
        {
          if(s2h>=0) emit_cmp(s1h,s2h);
          else emit_test(s1h,s1h);
          taken=(int)out;
          emit_jne(1);
        }
        if((opcode[i]&0x2f)==6) // BLEZ
        {
          emit_test(s1h,s1h);
          taken=(int)out;
          emit_js(1);
          nottaken1=(int)out;
          emit_jne(2);
        }
        if((opcode[i]&0x2f)==7) // BGTZ
        {
          emit_test(s1h,s1h);
          nottaken1=(int)out;
          emit_js(2);
          taken=(int)out;
          emit_jne(1);
        }
      } // if(!only32)
          
      //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
      assert(s1l>=0);
      if((opcode[i]&0x2f)==4) // BEQ
      {
        if(s2l>=0) emit_cmp(s1l,s2l);
        else emit_test(s1l,s1l);
        nottaken=(int)out;
        emit_jne(2);
      }
      if((opcode[i]&0x2f)==5) // BNE
      {
        if(s2l>=0) emit_cmp(s1l,s2l);
        else emit_test(s1l,s1l);
        nottaken=(int)out;
        emit_jeq(2);
      }
      if((opcode[i]&0x2f)==6) // BLEZ
      {
        emit_cmpimm(s1l,1);
        nottaken=(int)out;
        emit_jge(2);
      }
      if((opcode[i]&0x2f)==7) // BGTZ
      {
        emit_cmpimm(s1l,1);
        nottaken=(int)out;
        emit_jl(2);
      }
    } // if(!unconditional)
    int adj;
    uint64_t ds_unneeded=branch_regs[i].u;
    uint64_t ds_unneeded_upper=branch_regs[i].uu;
    ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
    ds_unneeded_upper&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
    if((~ds_unneeded_upper>>rt1[i+1])&1) ds_unneeded_upper&=~((1LL<<dep1[i+1])|(1LL<<dep2[i+1]));
    ds_unneeded|=1;
    ds_unneeded_upper|=1;
    // branch taken
    if(!nop) {
      if(taken) set_jump_target(taken,(int)out);
      assem_debug("1:\n");
      wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                    ds_unneeded,ds_unneeded_upper);
      // load regs
      load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i+1],rs2[i+1]);
      address_generation(i+1,&branch_regs[i],0);
      load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,INVCP);
      ds_assemble(i+1,&branch_regs[i]);
      cc=get_reg(branch_regs[i].regmap,CCREG);
      if(cc==-1) {
        emit_loadreg(CCREG,cc=HOST_CCREG);
        // CHECK: Is the following instruction (fall thru) allocated ok?
      }
      assert(cc==HOST_CCREG);
      store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
      do_cc(i,i_regmap,&adj,ba[i],TAKEN,0);
      assem_debug("cycle count (adj)\n");
      if(adj) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
      load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
      if(internal)
        assem_debug("branch: internal\n");
      else
        assem_debug("branch: external\n");
      if(internal&&is_ds[(ba[i]-start)>>2]) {
        ds_assemble_entry(i);
      }
      else {
        add_to_linker((int)out,ba[i],internal);
        emit_jmp(0);
      }
    }
    // branch not taken
    cop1_usable=prev_cop1_usable;
    if(!unconditional) {
      if(nottaken1) set_jump_target(nottaken1,(int)out);
      set_jump_target(nottaken,(int)out);
      assem_debug("2:\n");
      if(!likely[i]) {
        wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                      ds_unneeded,ds_unneeded_upper);
        load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i+1],rs2[i+1]);
        address_generation(i+1,&branch_regs[i],0);
        load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
        ds_assemble(i+1,&branch_regs[i]);
      }
      cc=get_reg(branch_regs[i].regmap,CCREG);
      if(cc==-1&&!likely[i]) {
        // Cycle count isn't in a register, temporarily load it then write it out
        emit_loadreg(CCREG,HOST_CCREG);
        emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),HOST_CCREG);
        int jaddr=(int)out;
        emit_jns(0);
        add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,NOTTAKEN,0);
        emit_storereg(CCREG,HOST_CCREG);
      }
      else{
        cc=get_reg(i_regmap,CCREG);
        assert(cc==HOST_CCREG);
        emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),cc);
        int jaddr=(int)out;
        emit_jns(0);
        add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0);
      }
    }
  }
}

void sjump_assemble(int i,struct regstat *i_regs)
{
  signed char *i_regmap=i_regs->regmap;
  int cc;
  int match;
  match=match_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
  assem_debug("smatch=%d\n",match);
  int s1h,s1l;
  int prev_cop1_usable=cop1_usable;
  int unconditional=0,nevertaken=0;
  int only32=0;
  int invert=0;
  int internal=internal_branch(branch_regs[i].is32,ba[i]);
  if(i==(ba[i]-start)>>2) assem_debug("idle loop\n");
  if(!match) invert=1;
  #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
  if(i>(ba[i]-start)>>2) invert=1;
  #endif

  //if(opcode2[i]>=0x10) return; // FIXME (BxxZAL)
  //assert(opcode2[i]<0x10||rs1[i]==0); // FIXME (BxxZAL)

  if(ooo[i]) {
    s1l=get_reg(branch_regs[i].regmap,rs1[i]);
    s1h=get_reg(branch_regs[i].regmap,rs1[i]|64);
  }
  else {
    s1l=get_reg(i_regmap,rs1[i]);
    s1h=get_reg(i_regmap,rs1[i]|64);
  }
  if(rs1[i]==0)
  {
    if(opcode2[i]&1) unconditional=1;
    else nevertaken=1;
    // These are never taken (r0 is never less than zero)
    //assert(opcode2[i]!=0);
    //assert(opcode2[i]!=2);
    //assert(opcode2[i]!=0x10);
    //assert(opcode2[i]!=0x12);
  }
  else {
    only32=(regs[i].was32>>rs1[i])&1;
  }

  if(ooo[i]) {
    // Out of order execution (delay slot first)
    //printf("OOOE\n");
    address_generation(i+1,i_regs,regs[i].regmap_entry);
    ds_assemble(i+1,i_regs);
    int adj;
    uint64_t bc_unneeded=branch_regs[i].u;
    uint64_t bc_unneeded_upper=branch_regs[i].uu;
    bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i]));
    bc_unneeded_upper&=~((1LL<<us1[i])|(1LL<<us2[i]));
    bc_unneeded|=1;
    bc_unneeded_upper|=1;
    wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                  bc_unneeded,bc_unneeded_upper);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i],rs1[i]);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
    if(rt1[i]==31) {
      int rt,return_address;
      rt=get_reg(branch_regs[i].regmap,31);
      assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
      if(rt>=0) {
        // Save the PC even if the branch is not taken
        return_address=start+i*4+8;
        emit_movimm(return_address,rt); // PC into link register
        #ifdef IMM_PREFETCH
        if(!nevertaken) emit_prefetch(hash_table[((return_address>>16)^return_address)&0xFFFF]);
        #endif
      }
    }
    cc=get_reg(branch_regs[i].regmap,CCREG);
    assert(cc==HOST_CCREG);
    if(unconditional) 
      store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
    //do_cc(i,branch_regs[i].regmap,&adj,unconditional?ba[i]:-1,unconditional);
    assem_debug("cycle count (adj)\n");
    if(unconditional) {
      do_cc(i,branch_regs[i].regmap,&adj,ba[i],TAKEN,0);
      if(i!=(ba[i]-start)>>2 || source[i+1]!=0) {
        if(adj) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
        load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
        if(internal)
          assem_debug("branch: internal\n");
        else
          assem_debug("branch: external\n");
        if(internal&&is_ds[(ba[i]-start)>>2]) {
          ds_assemble_entry(i);
        }
        else {
          add_to_linker((int)out,ba[i],internal);
          emit_jmp(0);
        }
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        if(((u_int)out)&7) emit_addnop(0);
        #endif
      }
    }
    else if(nevertaken) {
      emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),cc);
      int jaddr=(int)out;
      emit_jns(0);
      add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,NOTTAKEN,0);
    }
    else {
      int nottaken=0;
      do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert);
      if(adj&&!invert) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
      if(!only32)
      {
        assert(s1h>=0);
        if((opcode2[i]&0xf)==0) // BLTZ/BLTZAL
        {
          emit_test(s1h,s1h);
          if(invert){
            nottaken=(int)out;
            emit_jns(1);
          }else{
            add_to_linker((int)out,ba[i],internal);
            emit_js(0);
          }
        }
        if((opcode2[i]&0xf)==1) // BGEZ/BLTZAL
        {
          emit_test(s1h,s1h);
          if(invert){
            nottaken=(int)out;
            emit_js(1);
          }else{
            add_to_linker((int)out,ba[i],internal);
            emit_jns(0);
          }
        }
      } // if(!only32)
      else
      {
        assert(s1l>=0);
        if((opcode2[i]&0xf)==0) // BLTZ/BLTZAL
        {
          emit_test(s1l,s1l);
          if(invert){
            nottaken=(int)out;
            emit_jns(1);
          }else{
            add_to_linker((int)out,ba[i],internal);
            emit_js(0);
          }
        }
        if((opcode2[i]&0xf)==1) // BGEZ/BLTZAL
        {
          emit_test(s1l,s1l);
          if(invert){
            nottaken=(int)out;
            emit_js(1);
          }else{
            add_to_linker((int)out,ba[i],internal);
            emit_jns(0);
          }
        }
      } // if(!only32)
          
      if(invert) {
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        if(match&&(!internal||!is_ds[(ba[i]-start)>>2])) {
          if(adj) {
            emit_addimm(cc,-CLOCK_DIVIDER*adj,cc);
            add_to_linker((int)out,ba[i],internal);
          }else{
            emit_addnop(13);
            add_to_linker((int)out,ba[i],internal*2);
          }
          emit_jmp(0);
        }else
        #endif
        {
          if(adj) emit_addimm(cc,-CLOCK_DIVIDER*adj,cc);
          store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
          load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
          if(internal)
            assem_debug("branch: internal\n");
          else
            assem_debug("branch: external\n");
          if(internal&&is_ds[(ba[i]-start)>>2]) {
            ds_assemble_entry(i);
          }
          else {
            add_to_linker((int)out,ba[i],internal);
            emit_jmp(0);
          }
        }
        set_jump_target(nottaken,(int)out);
      }

      if(adj) {
        if(!invert) emit_addimm(cc,CLOCK_DIVIDER*adj,cc);
      }
    } // (!unconditional)
  } // if(ooo)
  else
  {
    // In-order execution (branch first)
    //printf("IOE\n");
    int nottaken=0;
    if(rt1[i]==31) {
      int rt,return_address;
      rt=get_reg(branch_regs[i].regmap,31);
      if(rt>=0) {
        // Save the PC even if the branch is not taken
        return_address=start+i*4+8;
        emit_movimm(return_address,rt); // PC into link register
        #ifdef IMM_PREFETCH
        emit_prefetch(hash_table[((return_address>>16)^return_address)&0xFFFF]);
        #endif
      }
    }
    if(!unconditional) {
      //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
      if(!only32)
      {
        assert(s1h>=0);
        if((opcode2[i]&0x0d)==0) // BLTZ/BLTZL/BLTZAL/BLTZALL
        {
          emit_test(s1h,s1h);
          nottaken=(int)out;
          emit_jns(1);
        }
        if((opcode2[i]&0x0d)==1) // BGEZ/BGEZL/BGEZAL/BGEZALL
        {
          emit_test(s1h,s1h);
          nottaken=(int)out;
          emit_js(1);
        }
      } // if(!only32)
      else
      {
        assert(s1l>=0);
        if((opcode2[i]&0x0d)==0) // BLTZ/BLTZL/BLTZAL/BLTZALL
        {
          emit_test(s1l,s1l);
          nottaken=(int)out;
          emit_jns(1);
        }
        if((opcode2[i]&0x0d)==1) // BGEZ/BGEZL/BGEZAL/BGEZALL
        {
          emit_test(s1l,s1l);
          nottaken=(int)out;
          emit_js(1);
        }
      }
    } // if(!unconditional)
    int adj;
    uint64_t ds_unneeded=branch_regs[i].u;
    uint64_t ds_unneeded_upper=branch_regs[i].uu;
    ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
    ds_unneeded_upper&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
    if((~ds_unneeded_upper>>rt1[i+1])&1) ds_unneeded_upper&=~((1LL<<dep1[i+1])|(1LL<<dep2[i+1]));
    ds_unneeded|=1;
    ds_unneeded_upper|=1;
    // branch taken
    if(!nevertaken) {
      //assem_debug("1:\n");
      wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                    ds_unneeded,ds_unneeded_upper);
      // load regs
      load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i+1],rs2[i+1]);
      address_generation(i+1,&branch_regs[i],0);
      load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,INVCP);
      ds_assemble(i+1,&branch_regs[i]);
      cc=get_reg(branch_regs[i].regmap,CCREG);
      if(cc==-1) {
        emit_loadreg(CCREG,cc=HOST_CCREG);
        // CHECK: Is the following instruction (fall thru) allocated ok?
      }
      assert(cc==HOST_CCREG);
      store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
      do_cc(i,i_regmap,&adj,ba[i],TAKEN,0);
      assem_debug("cycle count (adj)\n");
      if(adj) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
      load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
      if(internal)
        assem_debug("branch: internal\n");
      else
        assem_debug("branch: external\n");
      if(internal&&is_ds[(ba[i]-start)>>2]) {
        ds_assemble_entry(i);
      }
      else {
        add_to_linker((int)out,ba[i],internal);
        emit_jmp(0);
      }
    }
    // branch not taken
    cop1_usable=prev_cop1_usable;
    if(!unconditional) {
      set_jump_target(nottaken,(int)out);
      assem_debug("1:\n");
      if(!likely[i]) {
        wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                      ds_unneeded,ds_unneeded_upper);
        load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i+1],rs2[i+1]);
        address_generation(i+1,&branch_regs[i],0);
        load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
        ds_assemble(i+1,&branch_regs[i]);
      }
      cc=get_reg(branch_regs[i].regmap,CCREG);
      if(cc==-1&&!likely[i]) {
        // Cycle count isn't in a register, temporarily load it then write it out
        emit_loadreg(CCREG,HOST_CCREG);
        emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),HOST_CCREG);
        int jaddr=(int)out;
        emit_jns(0);
        add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,NOTTAKEN,0);
        emit_storereg(CCREG,HOST_CCREG);
      }
      else{
        cc=get_reg(i_regmap,CCREG);
        assert(cc==HOST_CCREG);
        emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),cc);
        int jaddr=(int)out;
        emit_jns(0);
        add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0);
      }
    }
  }
}

void fjump_assemble(int i,struct regstat *i_regs)
{
  signed char *i_regmap=i_regs->regmap;
  int cc;
  int match;
  match=match_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
  assem_debug("fmatch=%d\n",match);
  int fs,cs;
  int eaddr;
  int invert=0;
  int internal=internal_branch(branch_regs[i].is32,ba[i]);
  if(i==(ba[i]-start)>>2) assem_debug("idle loop\n");
  if(!match) invert=1;
  #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
  if(i>(ba[i]-start)>>2) invert=1;
  #endif

  if(ooo[i]) {
    fs=get_reg(branch_regs[i].regmap,FSREG);
    address_generation(i+1,i_regs,regs[i].regmap_entry); // Is this okay?
  }
  else {
    fs=get_reg(i_regmap,FSREG);
  }

  // Check cop1 unusable
  if(!cop1_usable) {
    cs=get_reg(i_regmap,CSREG);
    assert(cs>=0);
    emit_testimm(cs,0x20000000);
    eaddr=(int)out;
    emit_jeq(0);
    add_stub(FP_STUB,eaddr,(int)out,i,cs,(int)i_regs,0,0);
    cop1_usable=1;
  }

  if(ooo[i]) {
    // Out of order execution (delay slot first)
    //printf("OOOE\n");
    ds_assemble(i+1,i_regs);
    int adj;
    uint64_t bc_unneeded=branch_regs[i].u;
    uint64_t bc_unneeded_upper=branch_regs[i].uu;
    bc_unneeded&=~((1LL<<rs1[i])|(1LL<<rs2[i]));
    bc_unneeded_upper&=~((1LL<<us1[i])|(1LL<<us2[i]));
    bc_unneeded|=1;
    bc_unneeded_upper|=1;
    wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                  bc_unneeded,bc_unneeded_upper);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i],rs1[i]);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
    cc=get_reg(branch_regs[i].regmap,CCREG);
    assert(cc==HOST_CCREG);
    do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert);
    assem_debug("cycle count (adj)\n");
    if(1) {
      int nottaken=0;
      if(adj&&!invert) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
      if(1) {
        assert(fs>=0);
        emit_testimm(fs,0x800000);
        if(source[i]&0x10000) // BC1T
        {
          if(invert){
            nottaken=(int)out;
            emit_jeq(1);
          }else{
            add_to_linker((int)out,ba[i],internal);
            emit_jne(0);
          }
        }
        else // BC1F
          if(invert){
            nottaken=(int)out;
            emit_jne(1);
          }else{
            add_to_linker((int)out,ba[i],internal);
            emit_jeq(0);
          }
        {
        }
      } // if(!only32)
          
      if(invert) {
        if(adj) emit_addimm(cc,-CLOCK_DIVIDER*adj,cc);
        #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
        else if(match) emit_addnop(13);
        #endif
        store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
        load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
        if(internal)
          assem_debug("branch: internal\n");
        else
          assem_debug("branch: external\n");
        if(internal&&is_ds[(ba[i]-start)>>2]) {
          ds_assemble_entry(i);
        }
        else {
          add_to_linker((int)out,ba[i],internal);
          emit_jmp(0);
        }
        set_jump_target(nottaken,(int)out);
      }

      if(adj) {
        if(!invert) emit_addimm(cc,CLOCK_DIVIDER*adj,cc);
      }
    } // (!unconditional)
  } // if(ooo)
  else
  {
    // In-order execution (branch first)
    //printf("IOE\n");
    int nottaken=0;
    if(1) {
      //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
      if(1) {
        assert(fs>=0);
        emit_testimm(fs,0x800000);
        if(source[i]&0x10000) // BC1T
        {
          nottaken=(int)out;
          emit_jeq(1);
        }
        else // BC1F
        {
          nottaken=(int)out;
          emit_jne(1);
        }
      }
    } // if(!unconditional)
    int adj;
    uint64_t ds_unneeded=branch_regs[i].u;
    uint64_t ds_unneeded_upper=branch_regs[i].uu;
    ds_unneeded&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
    ds_unneeded_upper&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
    if((~ds_unneeded_upper>>rt1[i+1])&1) ds_unneeded_upper&=~((1LL<<dep1[i+1])|(1LL<<dep2[i+1]));
    ds_unneeded|=1;
    ds_unneeded_upper|=1;
    // branch taken
    //assem_debug("1:\n");
    wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                  ds_unneeded,ds_unneeded_upper);
    // load regs
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i+1],rs2[i+1]);
    address_generation(i+1,&branch_regs[i],0);
    load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,INVCP);
    ds_assemble(i+1,&branch_regs[i]);
    cc=get_reg(branch_regs[i].regmap,CCREG);
    if(cc==-1) {
      emit_loadreg(CCREG,cc=HOST_CCREG);
      // CHECK: Is the following instruction (fall thru) allocated ok?
    }
    assert(cc==HOST_CCREG);
    store_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
    do_cc(i,i_regmap,&adj,ba[i],TAKEN,0);
    assem_debug("cycle count (adj)\n");
    if(adj) emit_addimm(cc,CLOCK_DIVIDER*(ccadj[i]+2-adj),cc);
    load_regs_bt(branch_regs[i].regmap,branch_regs[i].is32,branch_regs[i].dirty,ba[i]);
    if(internal)
      assem_debug("branch: internal\n");
    else
      assem_debug("branch: external\n");
    if(internal&&is_ds[(ba[i]-start)>>2]) {
      ds_assemble_entry(i);
    }
    else {
      add_to_linker((int)out,ba[i],internal);
      emit_jmp(0);
    }

    // branch not taken
    if(1) { // <- FIXME (don't need this)
      set_jump_target(nottaken,(int)out);
      assem_debug("1:\n");
      if(!likely[i]) {
        wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,regs[i].is32,
                      ds_unneeded,ds_unneeded_upper);
        load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,rs1[i+1],rs2[i+1]);
        address_generation(i+1,&branch_regs[i],0);
        load_regs(regs[i].regmap,branch_regs[i].regmap,regs[i].was32,CCREG,CCREG);
        ds_assemble(i+1,&branch_regs[i]);
      }
      cc=get_reg(branch_regs[i].regmap,CCREG);
      if(cc==-1&&!likely[i]) {
        // Cycle count isn't in a register, temporarily load it then write it out
        emit_loadreg(CCREG,HOST_CCREG);
        emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),HOST_CCREG);
        int jaddr=(int)out;
        emit_jns(0);
        add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,NOTTAKEN,0);
        emit_storereg(CCREG,HOST_CCREG);
      }
      else{
        cc=get_reg(i_regmap,CCREG);
        assert(cc==HOST_CCREG);
        emit_addimm_and_set_flags(CLOCK_DIVIDER*(ccadj[i]+2),cc);
        int jaddr=(int)out;
        emit_jns(0);
        add_stub(CC_STUB,jaddr,(int)out,0,i,start+i*4+8,likely[i]?NULLDS:NOTTAKEN,0);
      }
    }
  }
}

static void pagespan_assemble(int i,struct regstat *i_regs)
{
  int s1l=get_reg(i_regs->regmap,rs1[i]);
  int s1h=get_reg(i_regs->regmap,rs1[i]|64);
  int s2l=get_reg(i_regs->regmap,rs2[i]);
  int s2h=get_reg(i_regs->regmap,rs2[i]|64);
  void *nt_branch=NULL;
  int taken=0;
  int nottaken=0;
  int unconditional=0;
  if(rs1[i]==0)
  {
    s1l=s2l;s1h=s2h;
    s2l=s2h=-1;
  }
  else if(rs2[i]==0)
  {
    s2l=s2h=-1;
  }
  if((i_regs->is32>>rs1[i])&(i_regs->is32>>rs2[i])&1) {
    s1h=s2h=-1;
  }
  int hr=0;
  int addr,alt,ntaddr;
  if(i_regs->regmap[HOST_BTREG]<0) {addr=HOST_BTREG;}
  else {
    while(hr<HOST_REGS)
    {
      if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
         (i_regs->regmap[hr]&63)!=rs1[i] &&
         (i_regs->regmap[hr]&63)!=rs2[i] )
      {
        addr=hr++;break;
      }
      hr++;
    }
  }
  while(hr<HOST_REGS)
  {
    if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && hr!=HOST_BTREG &&
       (i_regs->regmap[hr]&63)!=rs1[i] &&
       (i_regs->regmap[hr]&63)!=rs2[i] )
    {
      alt=hr++;break;
    }
    hr++;
  }
  if((opcode[i]&0x2E)==6) // BLEZ/BGTZ needs another register
  {
    while(hr<HOST_REGS)
    {
      if(hr!=EXCLUDE_REG && hr!=HOST_CCREG && hr!=HOST_BTREG &&
         (i_regs->regmap[hr]&63)!=rs1[i] &&
         (i_regs->regmap[hr]&63)!=rs2[i] )
      {
        ntaddr=hr;break;
      }
      hr++;
    }
  }
  assert(hr<HOST_REGS);
  if((opcode[i]&0x2e)==4||opcode[i]==0x11) { // BEQ/BNE/BEQL/BNEL/BC1
    load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,CCREG,CCREG);
  }
  emit_addimm(HOST_CCREG,CLOCK_DIVIDER*(ccadj[i]+2),HOST_CCREG);
  if(opcode[i]==2) // J
  {
    unconditional=1;
  }
  if(opcode[i]==3) // JAL
  {
    // TODO: mini_ht
    int rt=get_reg(i_regs->regmap,31);
    emit_movimm(start+i*4+8,rt);
    unconditional=1;
  }
  if(opcode[i]==0&&(opcode2[i]&0x3E)==8) // JR/JALR
  {
    emit_mov(s1l,addr);
    if(opcode2[i]==9) // JALR
    {
      int rt=get_reg(i_regs->regmap,rt1[i]);
      emit_movimm(start+i*4+8,rt);
    }
  }
  if((opcode[i]&0x3f)==4) // BEQ
  {
    if(rs1[i]==rs2[i])
    {
      unconditional=1;
    }
    else
    #ifdef HAVE_CMOV_IMM
    if(s1h<0) {
      if(s2l>=0) emit_cmp(s1l,s2l);
      else emit_test(s1l,s1l);
      emit_cmov2imm_e_ne_compact(ba[i],start+i*4+8,addr);
    }
    else
    #endif
    {
      assert(s1l>=0);
      emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt);
      if(s1h>=0) {
        if(s2h>=0) emit_cmp(s1h,s2h);
        else emit_test(s1h,s1h);
        emit_cmovne_reg(alt,addr);
      }
      if(s2l>=0) emit_cmp(s1l,s2l);
      else emit_test(s1l,s1l);
      emit_cmovne_reg(alt,addr);
    }
  }
  if((opcode[i]&0x3f)==5) // BNE
  {
    #ifdef HAVE_CMOV_IMM
    if(s1h<0) {
      if(s2l>=0) emit_cmp(s1l,s2l);
      else emit_test(s1l,s1l);
      emit_cmov2imm_e_ne_compact(start+i*4+8,ba[i],addr);
    }
    else
    #endif
    {
      assert(s1l>=0);
      emit_mov2imm_compact(start+i*4+8,addr,ba[i],alt);
      if(s1h>=0) {
        if(s2h>=0) emit_cmp(s1h,s2h);
        else emit_test(s1h,s1h);
        emit_cmovne_reg(alt,addr);
      }
      if(s2l>=0) emit_cmp(s1l,s2l);
      else emit_test(s1l,s1l);
      emit_cmovne_reg(alt,addr);
    }
  }
  if((opcode[i]&0x3f)==0x14) // BEQL
  {
    if(s1h>=0) {
      if(s2h>=0) emit_cmp(s1h,s2h);
      else emit_test(s1h,s1h);
      nottaken=(int)out;
      emit_jne(0);
    }
    if(s2l>=0) emit_cmp(s1l,s2l);
    else emit_test(s1l,s1l);
    if(nottaken) set_jump_target(nottaken,(int)out);
    nottaken=(int)out;
    emit_jne(0);
  }
  if((opcode[i]&0x3f)==0x15) // BNEL
  {
    if(s1h>=0) {
      if(s2h>=0) emit_cmp(s1h,s2h);
      else emit_test(s1h,s1h);
      taken=(int)out;
      emit_jne(0);
    }
    if(s2l>=0) emit_cmp(s1l,s2l);
    else emit_test(s1l,s1l);
    nottaken=(int)out;
    emit_jeq(0);
    if(taken) set_jump_target(taken,(int)out);
  }
  if((opcode[i]&0x3f)==6) // BLEZ
  {
    emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr);
    emit_cmpimm(s1l,1);
    if(s1h>=0) emit_mov(addr,ntaddr);
    emit_cmovl_reg(alt,addr);
    if(s1h>=0) {
      emit_test(s1h,s1h);
      emit_cmovne_reg(ntaddr,addr);
      emit_cmovs_reg(alt,addr);
    }
  }
  if((opcode[i]&0x3f)==7) // BGTZ
  {
    emit_mov2imm_compact(ba[i],addr,start+i*4+8,ntaddr);
    emit_cmpimm(s1l,1);
    if(s1h>=0) emit_mov(addr,alt);
    emit_cmovl_reg(ntaddr,addr);
    if(s1h>=0) {
      emit_test(s1h,s1h);
      emit_cmovne_reg(alt,addr);
      emit_cmovs_reg(ntaddr,addr);
    }
  }
  if((opcode[i]&0x3f)==0x16) // BLEZL
  {
    assert((opcode[i]&0x3f)!=0x16);
  }
  if((opcode[i]&0x3f)==0x17) // BGTZL
  {
    assert((opcode[i]&0x3f)!=0x17);
  }
  assert(opcode[i]!=1); // BLTZ/BGEZ

  //FIXME: Check CSREG
  if(opcode[i]==0x11 && opcode2[i]==0x08 ) {
    if((source[i]&0x30000)==0) // BC1F
    {
      emit_mov2imm_compact(ba[i],addr,start+i*4+8,alt);
      emit_testimm(s1l,0x800000);
      emit_cmovne_reg(alt,addr);
    }
    if((source[i]&0x30000)==0x10000) // BC1T
    {
      emit_mov2imm_compact(ba[i],alt,start+i*4+8,addr);
      emit_testimm(s1l,0x800000);
      emit_cmovne_reg(alt,addr);
    }
    if((source[i]&0x30000)==0x20000) // BC1FL
    {
      emit_testimm(s1l,0x800000);
      nottaken=(int)out;
      emit_jne(0);
    }
    if((source[i]&0x30000)==0x30000) // BC1TL
    {
      emit_testimm(s1l,0x800000);
      nottaken=(int)out;
      emit_jeq(0);
    }
  }

  assert(i_regs->regmap[HOST_CCREG]==CCREG);
  wb_dirtys(regs[i].regmap,regs[i].is32,regs[i].dirty);
  if(likely[i]||unconditional)
  {
    emit_movimm(ba[i],HOST_BTREG);
  }
  else if(addr!=HOST_BTREG)
  {
    emit_mov(addr,HOST_BTREG);
  }
  void *branch_addr=out;
  emit_jmp(0);
  int target_addr=start+i*4+5;
  void *stub=out;
  void *compiled_target_addr=check_addr(target_addr);
  emit_extjump_ds((int)branch_addr,target_addr);
  if(compiled_target_addr) {
    set_jump_target((int)branch_addr,(int)compiled_target_addr);
    add_link(target_addr,stub);
  }
  else set_jump_target((int)branch_addr,(int)stub);
  if(likely[i]) {
    // Not-taken path
    set_jump_target((int)nottaken,(int)out);
    wb_dirtys(regs[i].regmap,regs[i].is32,regs[i].dirty);
    void *branch_addr=out;
    emit_jmp(0);
    int target_addr=start+i*4+8;
    void *stub=out;
    void *compiled_target_addr=check_addr(target_addr);
    emit_extjump_ds((int)branch_addr,target_addr);
    if(compiled_target_addr) {
      set_jump_target((int)branch_addr,(int)compiled_target_addr);
      add_link(target_addr,stub);
    }
    else set_jump_target((int)branch_addr,(int)stub);
  }
}

// Assemble the delay slot for the above
static void pagespan_ds()
{
  assem_debug("initial delay slot:\n");
  u_int vaddr=start+1;
  u_int page=get_page(vaddr);
  u_int vpage=get_vpage(vaddr);
  ll_add(jump_dirty+vpage,vaddr,(void *)out);
  do_dirty_stub_ds();
  ll_add(jump_in+page,vaddr,(void *)out);
  assert(regs[0].regmap_entry[HOST_CCREG]==CCREG);
  if(regs[0].regmap[HOST_CCREG]!=CCREG)
    wb_register(CCREG,regs[0].regmap_entry,regs[0].wasdirty,regs[0].was32);
  if(regs[0].regmap[HOST_BTREG]!=BTREG)
    emit_writeword(HOST_BTREG,(int)&branch_target);
  load_regs(regs[0].regmap_entry,regs[0].regmap,regs[0].was32,rs1[0],rs2[0]);
  address_generation(0,&regs[0],regs[0].regmap_entry);
  if(itype[0]==STORE||itype[0]==STORELR||(opcode[0]&0x3b)==0x39||(opcode[0]&0x3b)==0x3a)
    load_regs(regs[0].regmap_entry,regs[0].regmap,regs[0].was32,INVCP,INVCP);
  cop1_usable=0;
  is_delayslot=0;
  switch(itype[0]) {
    case ALU:
      alu_assemble(0,&regs[0]);break;
    case IMM16:
      imm16_assemble(0,&regs[0]);break;
    case SHIFT:
      shift_assemble(0,&regs[0]);break;
    case SHIFTIMM:
      shiftimm_assemble(0,&regs[0]);break;
    case LOAD:
      load_assemble(0,&regs[0]);break;
    case LOADLR:
      loadlr_assemble(0,&regs[0]);break;
    case STORE:
      store_assemble(0,&regs[0]);break;
    case STORELR:
      storelr_assemble(0,&regs[0]);break;
    case COP0:
      cop0_assemble(0,&regs[0]);break;
    case COP1:
      cop1_assemble(0,&regs[0]);break;
    case C1LS:
      c1ls_assemble(0,&regs[0]);break;
    case COP2:
      cop2_assemble(0,&regs[0]);break;
    case C2LS:
      c2ls_assemble(0,&regs[0]);break;
    case C2OP:
      c2op_assemble(0,&regs[0]);break;
    case FCONV:
      fconv_assemble(0,&regs[0]);break;
    case FLOAT:
      float_assemble(0,&regs[0]);break;
    case FCOMP:
      fcomp_assemble(0,&regs[0]);break;
    case MULTDIV:
      multdiv_assemble(0,&regs[0]);break;
    case MOV:
      mov_assemble(0,&regs[0]);break;
    case SYSCALL:
    case HLECALL:
    case INTCALL:
    case SPAN:
    case UJUMP:
    case RJUMP:
    case CJUMP:
    case SJUMP:
    case FJUMP:
      printf("Jump in the delay slot.  This is probably a bug.\n");
  }
  int btaddr=get_reg(regs[0].regmap,BTREG);
  if(btaddr<0) {
    btaddr=get_reg(regs[0].regmap,-1);
    emit_readword((int)&branch_target,btaddr);
  }
  assert(btaddr!=HOST_CCREG);
  if(regs[0].regmap[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG);
#ifdef HOST_IMM8
  emit_movimm(start+4,HOST_TEMPREG);
  emit_cmp(btaddr,HOST_TEMPREG);
#else
  emit_cmpimm(btaddr,start+4);
#endif
  int branch=(int)out;
  emit_jeq(0);
  store_regs_bt(regs[0].regmap,regs[0].is32,regs[0].dirty,-1);
  emit_jmp(jump_vaddr_reg[btaddr]);
  set_jump_target(branch,(int)out);
  store_regs_bt(regs[0].regmap,regs[0].is32,regs[0].dirty,start+4);
  load_regs_bt(regs[0].regmap,regs[0].is32,regs[0].dirty,start+4);
}

// Basic liveness analysis for MIPS registers
void unneeded_registers(int istart,int iend,int r)
{
  int i;
  uint64_t u,uu,b,bu;
  uint64_t temp_u,temp_uu;
  uint64_t tdep;
  if(iend==slen-1) {
    u=1;uu=1;
  }else{
    u=unneeded_reg[iend+1];
    uu=unneeded_reg_upper[iend+1];
    u=1;uu=1;
  }
  for (i=iend;i>=istart;i--)
  {
    //printf("unneeded registers i=%d (%d,%d) r=%d\n",i,istart,iend,r);
    if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      // If subroutine call, flag return address as a possible branch target
      if(rt1[i]==31 && i<slen-2) bt[i+2]=1;
      
      if(ba[i]<start || ba[i]>=(start+slen*4))
      {
        // Branch out of this block, flush all regs
        u=1;
        uu=1;
        /* Hexagon hack 
        if(itype[i]==UJUMP&&rt1[i]==31)
        {
          uu=u=0x300C00F; // Discard at, v0-v1, t6-t9
        }
        if(itype[i]==RJUMP&&rs1[i]==31)
        {
          uu=u=0x300C0F3; // Discard at, a0-a3, t6-t9
        }
        if(start>0x80000400&&start<0x80000000+RAM_SIZE) {
          if(itype[i]==UJUMP&&rt1[i]==31)
          {
            //uu=u=0x30300FF0FLL; // Discard at, v0-v1, t0-t9, lo, hi
            uu=u=0x300FF0F; // Discard at, v0-v1, t0-t9
          }
          if(itype[i]==RJUMP&&rs1[i]==31)
          {
            //uu=u=0x30300FFF3LL; // Discard at, a0-a3, t0-t9, lo, hi
            uu=u=0x300FFF3; // Discard at, a0-a3, t0-t9
          }
        }*/
        branch_unneeded_reg[i]=u;
        branch_unneeded_reg_upper[i]=uu;
        // Merge in delay slot
        tdep=(~uu>>rt1[i+1])&1;
        u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
        uu|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
        u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
        uu&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
        uu&=~((tdep<<dep1[i+1])|(tdep<<dep2[i+1]));
        u|=1;uu|=1;
        // If branch is "likely" (and conditional)
        // then we skip the delay slot on the fall-thru path
        if(likely[i]) {
          if(i<slen-1) {
            u&=unneeded_reg[i+2];
            uu&=unneeded_reg_upper[i+2];
          }
          else
          {
            u=1;
            uu=1;
          }
        }
      }
      else
      {
        // Internal branch, flag target
        bt[(ba[i]-start)>>2]=1;
        if(ba[i]<=start+i*4) {
          // Backward branch
          if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000)
          {
            // Unconditional branch
            temp_u=1;temp_uu=1;
          } else {
            // Conditional branch (not taken case)
            temp_u=unneeded_reg[i+2];
            temp_uu=unneeded_reg_upper[i+2];
          }
          // Merge in delay slot
          tdep=(~temp_uu>>rt1[i+1])&1;
          temp_u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
          temp_uu|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
          temp_u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
          temp_uu&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
          temp_uu&=~((tdep<<dep1[i+1])|(tdep<<dep2[i+1]));
          temp_u|=1;temp_uu|=1;
          // If branch is "likely" (and conditional)
          // then we skip the delay slot on the fall-thru path
          if(likely[i]) {
            if(i<slen-1) {
              temp_u&=unneeded_reg[i+2];
              temp_uu&=unneeded_reg_upper[i+2];
            }
            else
            {
              temp_u=1;
              temp_uu=1;
            }
          }
          tdep=(~temp_uu>>rt1[i])&1;
          temp_u|=(1LL<<rt1[i])|(1LL<<rt2[i]);
          temp_uu|=(1LL<<rt1[i])|(1LL<<rt2[i]);
          temp_u&=~((1LL<<rs1[i])|(1LL<<rs2[i]));
          temp_uu&=~((1LL<<us1[i])|(1LL<<us2[i]));
          temp_uu&=~((tdep<<dep1[i])|(tdep<<dep2[i]));
          temp_u|=1;temp_uu|=1;
          unneeded_reg[i]=temp_u;
          unneeded_reg_upper[i]=temp_uu;
          // Only go three levels deep.  This recursion can take an
          // excessive amount of time if there are a lot of nested loops.
          if(r<2) {
            unneeded_registers((ba[i]-start)>>2,i-1,r+1);
          }else{
            unneeded_reg[(ba[i]-start)>>2]=1;
            unneeded_reg_upper[(ba[i]-start)>>2]=1;
          }
        } /*else*/ if(1) {
          if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000)
          {
            // Unconditional branch
            u=unneeded_reg[(ba[i]-start)>>2];
            uu=unneeded_reg_upper[(ba[i]-start)>>2];
            branch_unneeded_reg[i]=u;
            branch_unneeded_reg_upper[i]=uu;
        //u=1;
        //uu=1;
        //branch_unneeded_reg[i]=u;
        //branch_unneeded_reg_upper[i]=uu;
            // Merge in delay slot
            tdep=(~uu>>rt1[i+1])&1;
            u|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
            uu|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
            u&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
            uu&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
            uu&=~((tdep<<dep1[i+1])|(tdep<<dep2[i+1]));
            u|=1;uu|=1;
          } else {
            // Conditional branch
            b=unneeded_reg[(ba[i]-start)>>2];
            bu=unneeded_reg_upper[(ba[i]-start)>>2];
            branch_unneeded_reg[i]=b;
            branch_unneeded_reg_upper[i]=bu;
        //b=1;
        //bu=1;
        //branch_unneeded_reg[i]=b;
        //branch_unneeded_reg_upper[i]=bu;
            // Branch delay slot
            tdep=(~uu>>rt1[i+1])&1;
            b|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
            bu|=(1LL<<rt1[i+1])|(1LL<<rt2[i+1]);
            b&=~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
            bu&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
            bu&=~((tdep<<dep1[i+1])|(tdep<<dep2[i+1]));
            b|=1;bu|=1;
            // If branch is "likely" then we skip the
            // delay slot on the fall-thru path
            if(likely[i]) {
              u=b;
              uu=bu;
              if(i<slen-1) {
                u&=unneeded_reg[i+2];
                uu&=unneeded_reg_upper[i+2];
        //u=1;
        //uu=1;
              }
            } else {
              u&=b;
              uu&=bu;
        //u=1;
        //uu=1;
            }
            if(i<slen-1) {
              branch_unneeded_reg[i]&=unneeded_reg[i+2];
              branch_unneeded_reg_upper[i]&=unneeded_reg_upper[i+2];
        //branch_unneeded_reg[i]=1;
        //branch_unneeded_reg_upper[i]=1;
            } else {
              branch_unneeded_reg[i]=1;
              branch_unneeded_reg_upper[i]=1;
            }
          }
        }
      }
    }
    else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL)
    {
      // SYSCALL instruction (software interrupt)
      u=1;
      uu=1;
    }
    else if(itype[i]==COP0 && (source[i]&0x3f)==0x18)
    {
      // ERET instruction (return from interrupt)
      u=1;
      uu=1;
    }
    //u=uu=1; // DEBUG
    tdep=(~uu>>rt1[i])&1;
    // Written registers are unneeded
    u|=1LL<<rt1[i];
    u|=1LL<<rt2[i];
    uu|=1LL<<rt1[i];
    uu|=1LL<<rt2[i];
    // Accessed registers are needed
    u&=~(1LL<<rs1[i]);
    u&=~(1LL<<rs2[i]);
    uu&=~(1LL<<us1[i]);
    uu&=~(1LL<<us2[i]);
    // Source-target dependencies
    uu&=~(tdep<<dep1[i]);
    uu&=~(tdep<<dep2[i]);
    // R0 is always unneeded
    u|=1;uu|=1;
    // Save it
    unneeded_reg[i]=u;
    unneeded_reg_upper[i]=uu;
    /*
    printf("ur (%d,%d) %x: ",istart,iend,start+i*4);
    printf("U:");
    int r;
    for(r=1;r<=CCREG;r++) {
      if((unneeded_reg[i]>>r)&1) {
        if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    printf(" UU:");
    for(r=1;r<=CCREG;r++) {
      if(((unneeded_reg_upper[i]&~unneeded_reg[i])>>r)&1) {
        if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    printf("\n");*/
  }
#ifdef FORCE32
  for (i=iend;i>=istart;i--)
  {
    unneeded_reg_upper[i]=branch_unneeded_reg_upper[i]=-1LL;
  }
#endif
}

// Identify registers which are likely to contain 32-bit values
// This is used to predict whether any branches will jump to a
// location with 64-bit values in registers.
static void provisional_32bit()
{
  int i,j;
  uint64_t is32=1;
  uint64_t lastbranch=1;
  
  for(i=0;i<slen;i++)
  {
    if(i>0) {
      if(itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==FJUMP) {
        if(i>1) is32=lastbranch;
        else is32=1;
      }
    }
    if(i>1)
    {
      if(itype[i-2]==CJUMP||itype[i-2]==SJUMP||itype[i-2]==FJUMP) {
        if(likely[i-2]) {
          if(i>2) is32=lastbranch;
          else is32=1;
        }
      }
      if((opcode[i-2]&0x2f)==0x05) // BNE/BNEL
      {
        if(rs1[i-2]==0||rs2[i-2]==0)
        {
          if(rs1[i-2]) {
            is32|=1LL<<rs1[i-2];
          }
          if(rs2[i-2]) {
            is32|=1LL<<rs2[i-2];
          }
        }
      }
    }
    // If something jumps here with 64-bit values
    // then promote those registers to 64 bits
    if(bt[i])
    {
      uint64_t temp_is32=is32;
      for(j=i-1;j>=0;j--)
      {
        if(ba[j]==start+i*4) 
          //temp_is32&=branch_regs[j].is32;
          temp_is32&=p32[j];
      }
      for(j=i;j<slen;j++)
      {
        if(ba[j]==start+i*4) 
          temp_is32=1;
      }
      is32=temp_is32;
    }
    int type=itype[i];
    int op=opcode[i];
    int op2=opcode2[i];
    int rt=rt1[i];
    int s1=rs1[i];
    int s2=rs2[i];
    if(type==UJUMP||type==RJUMP||type==CJUMP||type==SJUMP||type==FJUMP) {
      // Branches don't write registers, consider the delay slot instead.
      type=itype[i+1];
      op=opcode[i+1];
      op2=opcode2[i+1];
      rt=rt1[i+1];
      s1=rs1[i+1];
      s2=rs2[i+1];
      lastbranch=is32;
    }
    switch(type) {
      case LOAD:
        if(opcode[i]==0x27||opcode[i]==0x37|| // LWU/LD
           opcode[i]==0x1A||opcode[i]==0x1B) // LDL/LDR
          is32&=~(1LL<<rt);
        else
          is32|=1LL<<rt;
        break;
      case STORE:
      case STORELR:
        break;
      case LOADLR:
        if(op==0x1a||op==0x1b) is32&=~(1LL<<rt); // LDR/LDL
        if(op==0x22) is32|=1LL<<rt; // LWL
        break;
      case IMM16:
        if (op==0x08||op==0x09|| // ADDI/ADDIU
            op==0x0a||op==0x0b|| // SLTI/SLTIU
            op==0x0c|| // ANDI
            op==0x0f)  // LUI
        {
          is32|=1LL<<rt;
        }
        if(op==0x18||op==0x19) { // DADDI/DADDIU
          is32&=~(1LL<<rt);
          //if(imm[i]==0)
          //  is32|=((is32>>s1)&1LL)<<rt;
        }
        if(op==0x0d||op==0x0e) { // ORI/XORI
          uint64_t sr=((is32>>s1)&1LL);
          is32&=~(1LL<<rt);
          is32|=sr<<rt;
        }
        break;
      case UJUMP:
        break;
      case RJUMP:
        break;
      case CJUMP:
        break;
      case SJUMP:
        break;
      case FJUMP:
        break;
      case ALU:
        if(op2>=0x20&&op2<=0x23) { // ADD/ADDU/SUB/SUBU
          is32|=1LL<<rt;
        }
        if(op2==0x2a||op2==0x2b) { // SLT/SLTU
          is32|=1LL<<rt;
        }
        else if(op2>=0x24&&op2<=0x27) { // AND/OR/XOR/NOR
          uint64_t sr=((is32>>s1)&(is32>>s2)&1LL);
          is32&=~(1LL<<rt);
          is32|=sr<<rt;
        }
        else if(op2>=0x2c&&op2<=0x2d) { // DADD/DADDU
          if(s1==0&&s2==0) {
            is32|=1LL<<rt;
          }
          else if(s2==0) {
            uint64_t sr=((is32>>s1)&1LL);
            is32&=~(1LL<<rt);
            is32|=sr<<rt;
          }
          else if(s1==0) {
            uint64_t sr=((is32>>s2)&1LL);
            is32&=~(1LL<<rt);
            is32|=sr<<rt;
          }
          else {
            is32&=~(1LL<<rt);
          }
        }
        else if(op2>=0x2e&&op2<=0x2f) { // DSUB/DSUBU
          if(s1==0&&s2==0) {
            is32|=1LL<<rt;
          }
          else if(s2==0) {
            uint64_t sr=((is32>>s1)&1LL);
            is32&=~(1LL<<rt);
            is32|=sr<<rt;
          }
          else {
            is32&=~(1LL<<rt);
          }
        }
        break;
      case MULTDIV:
        if (op2>=0x1c&&op2<=0x1f) { // DMULT/DMULTU/DDIV/DDIVU
          is32&=~((1LL<<HIREG)|(1LL<<LOREG));
        }
        else {
          is32|=(1LL<<HIREG)|(1LL<<LOREG);
        }
        break;
      case MOV:
        {
          uint64_t sr=((is32>>s1)&1LL);
          is32&=~(1LL<<rt);
          is32|=sr<<rt;
        }
        break;
      case SHIFT:
        if(op2>=0x14&&op2<=0x17) is32&=~(1LL<<rt); // DSLLV/DSRLV/DSRAV
        else is32|=1LL<<rt; // SLLV/SRLV/SRAV
        break;
      case SHIFTIMM:
        is32|=1LL<<rt;
        // DSLL/DSRL/DSRA/DSLL32/DSRL32 but not DSRA32 have 64-bit result
        if(op2>=0x38&&op2<0x3f) is32&=~(1LL<<rt);
        break;
      case COP0:
        if(op2==0) is32|=1LL<<rt; // MFC0
        break;
      case COP1:
      case COP2:
        if(op2==0) is32|=1LL<<rt; // MFC1
        if(op2==1) is32&=~(1LL<<rt); // DMFC1
        if(op2==2) is32|=1LL<<rt; // CFC1
        break;
      case C1LS:
      case C2LS:
        break;
      case FLOAT:
      case FCONV:
        break;
      case FCOMP:
        break;
      case C2OP:
      case SYSCALL:
      case HLECALL:
        break;
      default:
        break;
    }
    is32|=1;
    p32[i]=is32;

    if(i>0)
    {
      if(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000)
      {
        if(rt1[i-1]==31) // JAL/JALR
        {
          // Subroutine call will return here, don't alloc any registers
          is32=1;
        }
        else if(i+1<slen)
        {
          // Internal branch will jump here, match registers to caller
          is32=0x3FFFFFFFFLL;
        }
      }
    }
  }
}

// Identify registers which may be assumed to contain 32-bit values
// and where optimizations will rely on this.
// This is used to determine whether backward branches can safely
// jump to a location with 64-bit values in registers.
static void provisional_r32()
{
  u_int r32=0;
  int i;
  
  for (i=slen-1;i>=0;i--)
  {
    int hr;
    if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      if(ba[i]<start || ba[i]>=(start+slen*4))
      {
        // Branch out of this block, don't need anything
        r32=0;
      }
      else
      {
        // Internal branch
        // Need whatever matches the target
        // (and doesn't get overwritten by the delay slot instruction)
        r32=0;
        int t=(ba[i]-start)>>2;
        if(ba[i]>start+i*4) {
          // Forward branch
          //if(!(requires_32bit[t]&~regs[i].was32))
          //  r32|=requires_32bit[t]&(~(1LL<<rt1[i+1]))&(~(1LL<<rt2[i+1]));
          if(!(pr32[t]&~regs[i].was32))
            r32|=pr32[t]&(~(1LL<<rt1[i+1]))&(~(1LL<<rt2[i+1]));
        }else{
          // Backward branch
          if(!(regs[t].was32&~unneeded_reg_upper[t]&~regs[i].was32))
            r32|=regs[t].was32&~unneeded_reg_upper[t]&(~(1LL<<rt1[i+1]))&(~(1LL<<rt2[i+1]));
        }
      }
      // Conditional branch may need registers for following instructions
      if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000)
      {
        if(i<slen-2) {
          //r32|=requires_32bit[i+2];
          r32|=pr32[i+2];
          r32&=regs[i].was32;
          // Mark this address as a branch target since it may be called
          // upon return from interrupt
          //bt[i+2]=1;
        }
      }
      // Merge in delay slot
      if(!likely[i]) {
        // These are overwritten unless the branch is "likely"
        // and the delay slot is nullified if not taken
        r32&=~(1LL<<rt1[i+1]);
        r32&=~(1LL<<rt2[i+1]);
      }
      // Assume these are needed (delay slot)
      if(us1[i+1]>0)
      {
        if((regs[i].was32>>us1[i+1])&1) r32|=1LL<<us1[i+1];
      }
      if(us2[i+1]>0)
      {
        if((regs[i].was32>>us2[i+1])&1) r32|=1LL<<us2[i+1];
      }
      if(dep1[i+1]&&!((unneeded_reg_upper[i]>>dep1[i+1])&1))
      {
        if((regs[i].was32>>dep1[i+1])&1) r32|=1LL<<dep1[i+1];
      }
      if(dep2[i+1]&&!((unneeded_reg_upper[i]>>dep2[i+1])&1))
      {
        if((regs[i].was32>>dep2[i+1])&1) r32|=1LL<<dep2[i+1];
      }
    }
    else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL)
    {
      // SYSCALL instruction (software interrupt)
      r32=0;
    }
    else if(itype[i]==COP0 && (source[i]&0x3f)==0x18)
    {
      // ERET instruction (return from interrupt)
      r32=0;
    }
    // Check 32 bits
    r32&=~(1LL<<rt1[i]);
    r32&=~(1LL<<rt2[i]);
    if(us1[i]>0)
    {
      if((regs[i].was32>>us1[i])&1) r32|=1LL<<us1[i];
    }
    if(us2[i]>0)
    {
      if((regs[i].was32>>us2[i])&1) r32|=1LL<<us2[i];
    }
    if(dep1[i]&&!((unneeded_reg_upper[i]>>dep1[i])&1))
    {
      if((regs[i].was32>>dep1[i])&1) r32|=1LL<<dep1[i];
    }
    if(dep2[i]&&!((unneeded_reg_upper[i]>>dep2[i])&1))
    {
      if((regs[i].was32>>dep2[i])&1) r32|=1LL<<dep2[i];
    }
    //requires_32bit[i]=r32;
    pr32[i]=r32;
    
    // Dirty registers which are 32-bit, require 32-bit input
    // as they will be written as 32-bit values
    for(hr=0;hr<HOST_REGS;hr++)
    {
      if(regs[i].regmap_entry[hr]>0&&regs[i].regmap_entry[hr]<64) {
        if((regs[i].was32>>regs[i].regmap_entry[hr])&(regs[i].wasdirty>>hr)&1) {
          if(!((unneeded_reg_upper[i]>>regs[i].regmap_entry[hr])&1))
          pr32[i]|=1LL<<regs[i].regmap_entry[hr];
          //requires_32bit[i]|=1LL<<regs[i].regmap_entry[hr];
        }
      }
    }
  }
}

// Write back dirty registers as soon as we will no longer modify them,
// so that we don't end up with lots of writes at the branches.
void clean_registers(int istart,int iend,int wr)
{
  int i;
  int r;
  u_int will_dirty_i,will_dirty_next,temp_will_dirty;
  u_int wont_dirty_i,wont_dirty_next,temp_wont_dirty;
  if(iend==slen-1) {
    will_dirty_i=will_dirty_next=0;
    wont_dirty_i=wont_dirty_next=0;
  }else{
    will_dirty_i=will_dirty_next=will_dirty[iend+1];
    wont_dirty_i=wont_dirty_next=wont_dirty[iend+1];
  }
  for (i=iend;i>=istart;i--)
  {
    if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      if(ba[i]<start || ba[i]>=(start+slen*4))
      {
        // Branch out of this block, flush all regs
        if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000)
        {
          // Unconditional branch
          will_dirty_i=0;
          wont_dirty_i=0;
          // Merge in delay slot (will dirty)
          for(r=0;r<HOST_REGS;r++) {
            if(r!=EXCLUDE_REG) {
              if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
              if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
              if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
              if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
              if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
            }
          }
        }
        else
        {
          // Conditional branch
          will_dirty_i=0;
          wont_dirty_i=wont_dirty_next;
          // Merge in delay slot (will dirty)
          for(r=0;r<HOST_REGS;r++) {
            if(r!=EXCLUDE_REG) {
              if(!likely[i]) {
                // Might not dirty if likely branch is not taken
                if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
                if(branch_regs[i].regmap[r]==0) will_dirty_i&=~(1<<r);
                if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
                //if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
                //if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
                if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
                if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
              }
            }
          }
        }
        // Merge in delay slot (wont dirty)
        for(r=0;r<HOST_REGS;r++) {
          if(r!=EXCLUDE_REG) {
            if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r;
            if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r;
            if((regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r;
            if((regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r;
            if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r;
            if((branch_regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r;
            if((branch_regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r;
            if((branch_regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r;
            if((branch_regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r;
            if(branch_regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r;
          }
        }
        if(wr) {
          #ifndef DESTRUCTIVE_WRITEBACK
          branch_regs[i].dirty&=wont_dirty_i;
          #endif
          branch_regs[i].dirty|=will_dirty_i;
        }
      }
      else
      {
        // Internal branch
        if(ba[i]<=start+i*4) {
          // Backward branch
          if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000)
          {
            // Unconditional branch
            temp_will_dirty=0;
            temp_wont_dirty=0;
            // Merge in delay slot (will dirty)
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r;
                if((branch_regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r);
                if(branch_regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r);
                if(branch_regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r;
                if((regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r;
                if((regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r;
                if((regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r;
                if((regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r;
                if((regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r);
                if(regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r);
                if(regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r;
              }
            }
          } else {
            // Conditional branch (not taken case)
            temp_will_dirty=will_dirty_next;
            temp_wont_dirty=wont_dirty_next;
            // Merge in delay slot (will dirty)
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(!likely[i]) {
                  // Will not dirty if likely branch is not taken
                  if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r;
                  if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r;
                  if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r;
                  if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r;
                  if((branch_regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r);
                  if(branch_regs[i].regmap[r]==0) temp_will_dirty&=~(1<<r);
                  if(branch_regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r;
                  //if((regs[i].regmap[r]&63)==rt1[i]) temp_will_dirty|=1<<r;
                  //if((regs[i].regmap[r]&63)==rt2[i]) temp_will_dirty|=1<<r;
                  if((regs[i].regmap[r]&63)==rt1[i+1]) temp_will_dirty|=1<<r;
                  if((regs[i].regmap[r]&63)==rt2[i+1]) temp_will_dirty|=1<<r;
                  if((regs[i].regmap[r]&63)>33) temp_will_dirty&=~(1<<r);
                  if(regs[i].regmap[r]<=0) temp_will_dirty&=~(1<<r);
                  if(regs[i].regmap[r]==CCREG) temp_will_dirty|=1<<r;
                }
              }
            }
          }
          // Merge in delay slot (wont dirty)
          for(r=0;r<HOST_REGS;r++) {
            if(r!=EXCLUDE_REG) {
              if((regs[i].regmap[r]&63)==rt1[i]) temp_wont_dirty|=1<<r;
              if((regs[i].regmap[r]&63)==rt2[i]) temp_wont_dirty|=1<<r;
              if((regs[i].regmap[r]&63)==rt1[i+1]) temp_wont_dirty|=1<<r;
              if((regs[i].regmap[r]&63)==rt2[i+1]) temp_wont_dirty|=1<<r;
              if(regs[i].regmap[r]==CCREG) temp_wont_dirty|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt1[i]) temp_wont_dirty|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt2[i]) temp_wont_dirty|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt1[i+1]) temp_wont_dirty|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt2[i+1]) temp_wont_dirty|=1<<r;
              if(branch_regs[i].regmap[r]==CCREG) temp_wont_dirty|=1<<r;
            }
          }
          // Deal with changed mappings
          if(i<iend) {
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(regs[i].regmap[r]!=regmap_pre[i][r]) {
                  temp_will_dirty&=~(1<<r);
                  temp_wont_dirty&=~(1<<r);
                  if((regmap_pre[i][r]&63)>0 && (regmap_pre[i][r]&63)<34) {
                    temp_will_dirty|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r;
                    temp_wont_dirty|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r;
                  } else {
                    temp_will_dirty|=1<<r;
                    temp_wont_dirty|=1<<r;
                  }
                }
              }
            }
          }
          if(wr) {
            will_dirty[i]=temp_will_dirty;
            wont_dirty[i]=temp_wont_dirty;
            clean_registers((ba[i]-start)>>2,i-1,0);
          }else{
            // Limit recursion.  It can take an excessive amount
            // of time if there are a lot of nested loops.
            will_dirty[(ba[i]-start)>>2]=0;
            wont_dirty[(ba[i]-start)>>2]=-1;
          }
        }
        /*else*/ if(1)
        {
          if(itype[i]==RJUMP||itype[i]==UJUMP||(source[i]>>16)==0x1000)
          {
            // Unconditional branch
            will_dirty_i=0;
            wont_dirty_i=0;
          //if(ba[i]>start+i*4) { // Disable recursion (for debugging)
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(branch_regs[i].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) {
                  will_dirty_i|=will_dirty[(ba[i]-start)>>2]&(1<<r);
                  wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r);
                }
              }
            }
          //}
            // Merge in delay slot
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
                if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
                if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
                if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
                if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
                if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
                if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
              }
            }
          } else {
            // Conditional branch
            will_dirty_i=will_dirty_next;
            wont_dirty_i=wont_dirty_next;
          //if(ba[i]>start+i*4) { // Disable recursion (for debugging)
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(branch_regs[i].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) {
                  will_dirty_i&=will_dirty[(ba[i]-start)>>2]&(1<<r);
                  wont_dirty_i|=wont_dirty[(ba[i]-start)>>2]&(1<<r);
                }
                else
                {
                  will_dirty_i&=~(1<<r);
                }
                // Treat delay slot as part of branch too
                /*if(regs[i+1].regmap[r]==regs[(ba[i]-start)>>2].regmap_entry[r]) {
                  will_dirty[i+1]&=will_dirty[(ba[i]-start)>>2]&(1<<r);
                  wont_dirty[i+1]|=wont_dirty[(ba[i]-start)>>2]&(1<<r);
                }
                else
                {
                  will_dirty[i+1]&=~(1<<r);
                }*/
              }
            }
          //}
            // Merge in delay slot
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(!likely[i]) {
                  // Might not dirty if likely branch is not taken
                  if((branch_regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
                  if((branch_regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
                  if((branch_regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
                  if((branch_regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
                  if((branch_regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
                  if(branch_regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
                  if(branch_regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
                  //if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
                  //if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
                  if((regs[i].regmap[r]&63)==rt1[i+1]) will_dirty_i|=1<<r;
                  if((regs[i].regmap[r]&63)==rt2[i+1]) will_dirty_i|=1<<r;
                  if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
                  if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
                  if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
                }
              }
            }
          }
          // Merge in delay slot
          for(r=0;r<HOST_REGS;r++) {
            if(r!=EXCLUDE_REG) {
              if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r;
              if((regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r;
              if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt1[i+1]) wont_dirty_i|=1<<r;
              if((branch_regs[i].regmap[r]&63)==rt2[i+1]) wont_dirty_i|=1<<r;
              if(branch_regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r;
            }
          }
          if(wr) {
            #ifndef DESTRUCTIVE_WRITEBACK
            branch_regs[i].dirty&=wont_dirty_i;
            #endif
            branch_regs[i].dirty|=will_dirty_i;
          }
        }
      }
    }
    else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL)
    {
      // SYSCALL instruction (software interrupt)
      will_dirty_i=0;
      wont_dirty_i=0;
    }
    else if(itype[i]==COP0 && (source[i]&0x3f)==0x18)
    {
      // ERET instruction (return from interrupt)
      will_dirty_i=0;
      wont_dirty_i=0;
    }
    will_dirty_next=will_dirty_i;
    wont_dirty_next=wont_dirty_i;
    for(r=0;r<HOST_REGS;r++) {
      if(r!=EXCLUDE_REG) {
        if((regs[i].regmap[r]&63)==rt1[i]) will_dirty_i|=1<<r;
        if((regs[i].regmap[r]&63)==rt2[i]) will_dirty_i|=1<<r;
        if((regs[i].regmap[r]&63)>33) will_dirty_i&=~(1<<r);
        if(regs[i].regmap[r]<=0) will_dirty_i&=~(1<<r);
        if(regs[i].regmap[r]==CCREG) will_dirty_i|=1<<r;
        if((regs[i].regmap[r]&63)==rt1[i]) wont_dirty_i|=1<<r;
        if((regs[i].regmap[r]&63)==rt2[i]) wont_dirty_i|=1<<r;
        if(regs[i].regmap[r]==CCREG) wont_dirty_i|=1<<r;
        if(i>istart) {
          if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP&&itype[i]!=FJUMP) 
          {
            // Don't store a register immediately after writing it,
            // may prevent dual-issue.
            if((regs[i].regmap[r]&63)==rt1[i-1]) wont_dirty_i|=1<<r;
            if((regs[i].regmap[r]&63)==rt2[i-1]) wont_dirty_i|=1<<r;
          }
        }
      }
    }
    // Save it
    will_dirty[i]=will_dirty_i;
    wont_dirty[i]=wont_dirty_i;
    // Mark registers that won't be dirtied as not dirty
    if(wr) {
      /*printf("wr (%d,%d) %x will:",istart,iend,start+i*4);
      for(r=0;r<HOST_REGS;r++) {
        if((will_dirty_i>>r)&1) {
          printf(" r%d",r);
        }
      }
      printf("\n");*/

      //if(i==istart||(itype[i-1]!=RJUMP&&itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=FJUMP)) {
        regs[i].dirty|=will_dirty_i;
        #ifndef DESTRUCTIVE_WRITEBACK
        regs[i].dirty&=wont_dirty_i;
        if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
        {
          if(i<iend-1&&itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) {
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(regs[i].regmap[r]==regmap_pre[i+2][r]) {
                  regs[i+2].wasdirty&=wont_dirty_i|~(1<<r);
                }else {/*printf("i: %x (%d) mismatch(+2): %d\n",start+i*4,i,r);/*assert(!((wont_dirty_i>>r)&1));*/}
              }
            }
          }
        }
        else
        {
          if(i<iend) {
            for(r=0;r<HOST_REGS;r++) {
              if(r!=EXCLUDE_REG) {
                if(regs[i].regmap[r]==regmap_pre[i+1][r]) {
                  regs[i+1].wasdirty&=wont_dirty_i|~(1<<r);
                }else {/*printf("i: %x (%d) mismatch(+1): %d\n",start+i*4,i,r);/*assert(!((wont_dirty_i>>r)&1));*/}
              }
            }
          }
        }
        #endif
      //}
    }
    // Deal with changed mappings
    temp_will_dirty=will_dirty_i;
    temp_wont_dirty=wont_dirty_i;
    for(r=0;r<HOST_REGS;r++) {
      if(r!=EXCLUDE_REG) {
        int nr;
        if(regs[i].regmap[r]==regmap_pre[i][r]) {
          if(wr) {
            #ifndef DESTRUCTIVE_WRITEBACK
            regs[i].wasdirty&=wont_dirty_i|~(1<<r);
            #endif
            regs[i].wasdirty|=will_dirty_i&(1<<r);
          }
        }
        else if((nr=get_reg(regs[i].regmap,regmap_pre[i][r]))>=0) {
          // Register moved to a different register
          will_dirty_i&=~(1<<r);
          wont_dirty_i&=~(1<<r);
          will_dirty_i|=((temp_will_dirty>>nr)&1)<<r;
          wont_dirty_i|=((temp_wont_dirty>>nr)&1)<<r;
          if(wr) {
            #ifndef DESTRUCTIVE_WRITEBACK
            regs[i].wasdirty&=wont_dirty_i|~(1<<r);
            #endif
            regs[i].wasdirty|=will_dirty_i&(1<<r);
          }
        }
        else {
          will_dirty_i&=~(1<<r);
          wont_dirty_i&=~(1<<r);
          if((regmap_pre[i][r]&63)>0 && (regmap_pre[i][r]&63)<34) {
            will_dirty_i|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r;
            wont_dirty_i|=((unneeded_reg[i]>>(regmap_pre[i][r]&63))&1)<<r;
          } else {
            wont_dirty_i|=1<<r;
            /*printf("i: %x (%d) mismatch: %d\n",start+i*4,i,r);/*assert(!((will_dirty>>r)&1));*/
          }
        }
      }
    }
  }
}

  /* disassembly */
void disassemble_inst(int i)
{
    if (bt[i]) printf("*"); else printf(" ");
    switch(itype[i]) {
      case UJUMP:
        printf (" %x: %s %8x\n",start+i*4,insn[i],ba[i]);break;
      case CJUMP:
        printf (" %x: %s r%d,r%d,%8x\n",start+i*4,insn[i],rs1[i],rs2[i],i?start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14):*ba);break;
      case SJUMP:
        printf (" %x: %s r%d,%8x\n",start+i*4,insn[i],rs1[i],start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14));break;
      case FJUMP:
        printf (" %x: %s %8x\n",start+i*4,insn[i],ba[i]);break;
      case RJUMP:
        if (opcode[i]==0x9&&rt1[i]!=31)
          printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],rt1[i],rs1[i]);
        else
          printf (" %x: %s r%d\n",start+i*4,insn[i],rs1[i]);
        break;
      case SPAN:
        printf (" %x: %s (pagespan) r%d,r%d,%8x\n",start+i*4,insn[i],rs1[i],rs2[i],ba[i]);break;
      case IMM16:
        if(opcode[i]==0xf) //LUI
          printf (" %x: %s r%d,%4x0000\n",start+i*4,insn[i],rt1[i],imm[i]&0xffff);
        else
          printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]);
        break;
      case LOAD:
      case LOADLR:
        printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]);
        break;
      case STORE:
      case STORELR:
        printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],rs2[i],rs1[i],imm[i]);
        break;
      case ALU:
      case SHIFT:
        printf (" %x: %s r%d,r%d,r%d\n",start+i*4,insn[i],rt1[i],rs1[i],rs2[i]);
        break;
      case MULTDIV:
        printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],rs1[i],rs2[i]);
        break;
      case SHIFTIMM:
        printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],rt1[i],rs1[i],imm[i]);
        break;
      case MOV:
        if((opcode2[i]&0x1d)==0x10)
          printf (" %x: %s r%d\n",start+i*4,insn[i],rt1[i]);
        else if((opcode2[i]&0x1d)==0x11)
          printf (" %x: %s r%d\n",start+i*4,insn[i],rs1[i]);
        else
          printf (" %x: %s\n",start+i*4,insn[i]);
        break;
      case COP0:
        if(opcode2[i]==0)
          printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC0
        else if(opcode2[i]==4)
          printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC0
        else printf (" %x: %s\n",start+i*4,insn[i]);
        break;
      case COP1:
        if(opcode2[i]<3)
          printf (" %x: %s r%d,cpr1[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC1
        else if(opcode2[i]>3)
          printf (" %x: %s r%d,cpr1[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC1
        else printf (" %x: %s\n",start+i*4,insn[i]);
        break;
      case COP2:
        if(opcode2[i]<3)
          printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],rt1[i],(source[i]>>11)&0x1f); // MFC2
        else if(opcode2[i]>3)
          printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],rs1[i],(source[i]>>11)&0x1f); // MTC2
        else printf (" %x: %s\n",start+i*4,insn[i]);
        break;
      case C1LS:
        printf (" %x: %s cpr1[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,rs1[i],imm[i]);
        break;
      case C2LS:
        printf (" %x: %s cpr2[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,rs1[i],imm[i]);
        break;
      case INTCALL:
        printf (" %x: %s (INTCALL)\n",start+i*4,insn[i]);
        break;
      default:
        //printf (" %s %8x\n",insn[i],source[i]);
        printf (" %x: %s\n",start+i*4,insn[i]);
    }
}

// clear the state completely, instead of just marking
// things invalid like invalidate_all_pages() does
void new_dynarec_clear_full()
{
  int n;
  out=(u_char *)BASE_ADDR;
  memset(invalid_code,1,sizeof(invalid_code));
  memset(hash_table,0xff,sizeof(hash_table));
  memset(mini_ht,-1,sizeof(mini_ht));
  memset(restore_candidate,0,sizeof(restore_candidate));
  memset(shadow,0,sizeof(shadow));
  copy=shadow;
  expirep=16384; // Expiry pointer, +2 blocks
  pending_exception=0;
  literalcount=0;
  stop_after_jal=0;
  // TLB
#ifndef DISABLE_TLB
  using_tlb=0;
#endif
  sp_in_mirror=0;
  for(n=0;n<524288;n++) // 0 .. 0x7FFFFFFF
    memory_map[n]=-1;
  for(n=524288;n<526336;n++) // 0x80000000 .. 0x807FFFFF
    memory_map[n]=((u_int)rdram-0x80000000)>>2;
  for(n=526336;n<1048576;n++) // 0x80800000 .. 0xFFFFFFFF
    memory_map[n]=-1;
  for(n=0;n<4096;n++) ll_clear(jump_in+n);
  for(n=0;n<4096;n++) ll_clear(jump_out+n);
  for(n=0;n<4096;n++) ll_clear(jump_dirty+n);
}

void new_dynarec_init()
{
  printf("Init new dynarec\n");
  out=(u_char *)BASE_ADDR;
  if (mmap (out, 1<<TARGET_SIZE_2,
            PROT_READ | PROT_WRITE | PROT_EXEC,
            MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS,
            -1, 0) <= 0) {printf("mmap() failed\n");}
#ifdef MUPEN64
  rdword=&readmem_dword;
  fake_pc.f.r.rs=&readmem_dword;
  fake_pc.f.r.rt=&readmem_dword;
  fake_pc.f.r.rd=&readmem_dword;
#endif
  int n;
  new_dynarec_clear_full();
#ifdef HOST_IMM8
  // Copy this into local area so we don't have to put it in every literal pool
  invc_ptr=invalid_code;
#endif
#ifdef MUPEN64
  for(n=0;n<0x8000;n++) { // 0 .. 0x7FFFFFFF
    writemem[n] = write_nomem_new;
    writememb[n] = write_nomemb_new;
    writememh[n] = write_nomemh_new;
#ifndef FORCE32
    writememd[n] = write_nomemd_new;
#endif
    readmem[n] = read_nomem_new;
    readmemb[n] = read_nomemb_new;
    readmemh[n] = read_nomemh_new;
#ifndef FORCE32
    readmemd[n] = read_nomemd_new;
#endif
  }
  for(n=0x8000;n<0x8080;n++) { // 0x80000000 .. 0x807FFFFF
    writemem[n] = write_rdram_new;
    writememb[n] = write_rdramb_new;
    writememh[n] = write_rdramh_new;
#ifndef FORCE32
    writememd[n] = write_rdramd_new;
#endif
  }
  for(n=0xC000;n<0x10000;n++) { // 0xC0000000 .. 0xFFFFFFFF
    writemem[n] = write_nomem_new;
    writememb[n] = write_nomemb_new;
    writememh[n] = write_nomemh_new;
#ifndef FORCE32
    writememd[n] = write_nomemd_new;
#endif
    readmem[n] = read_nomem_new;
    readmemb[n] = read_nomemb_new;
    readmemh[n] = read_nomemh_new;
#ifndef FORCE32
    readmemd[n] = read_nomemd_new;
#endif
  }
#endif
  tlb_hacks();
  arch_init();
}

void new_dynarec_cleanup()
{
  int n;
  if (munmap ((void *)BASE_ADDR, 1<<TARGET_SIZE_2) < 0) {printf("munmap() failed\n");}
  for(n=0;n<4096;n++) ll_clear(jump_in+n);
  for(n=0;n<4096;n++) ll_clear(jump_out+n);
  for(n=0;n<4096;n++) ll_clear(jump_dirty+n);
  #ifdef ROM_COPY
  if (munmap (ROM_COPY, 67108864) < 0) {printf("munmap() failed\n");}
  #endif
}

int new_recompile_block(int addr)
{
/*
  if(addr==0x800cd050) {
    int block;
    for(block=0x80000;block<0x80800;block++) invalidate_block(block);
    int n;
    for(n=0;n<=2048;n++) ll_clear(jump_dirty+n);
  }
*/
  //if(Count==365117028) tracedebug=1;
  assem_debug("NOTCOMPILED: addr = %x -> %x\n", (int)addr, (int)out);
  //printf("NOTCOMPILED: addr = %x -> %x\n", (int)addr, (int)out);
  //printf("TRACE: count=%d next=%d (compile %x)\n",Count,next_interupt,addr);
  //if(debug) 
  //printf("TRACE: count=%d next=%d (checksum %x)\n",Count,next_interupt,mchecksum());
  //printf("fpu mapping=%x enabled=%x\n",(Status & 0x04000000)>>26,(Status & 0x20000000)>>29);
  /*if(Count>=312978186) {
    rlist();
  }*/
  //rlist();
  start = (u_int)addr&~3;
  //assert(((u_int)addr&1)==0);
#ifdef PCSX
  if(!sp_in_mirror&&(signed int)(psxRegs.GPR.n.sp&0xffe00000)>0x80200000&&
     0x10000<=psxRegs.GPR.n.sp&&(psxRegs.GPR.n.sp&~0xe0e00000)<RAM_SIZE) {
    printf("SP hack enabled (%08x), @%08x\n", psxRegs.GPR.n.sp, psxRegs.pc);
    sp_in_mirror=1;
  }
  if (Config.HLE && start == 0x80001000) // hlecall
  {
    // XXX: is this enough? Maybe check hleSoftCall?
    u_int beginning=(u_int)out;
    u_int page=get_page(start);
    invalid_code[start>>12]=0;
    emit_movimm(start,0);
    emit_writeword(0,(int)&pcaddr);
    emit_jmp((int)new_dyna_leave);
#ifdef __arm__
    __clear_cache((void *)beginning,out);
#endif
    ll_add(jump_in+page,start,(void *)beginning);
    return 0;
  }
  else if ((u_int)addr < 0x00200000 ||
    (0xa0000000 <= addr && addr < 0xa0200000)) {
    // used for BIOS calls mostly?
    source = (u_int *)((u_int)rdram+(start&0x1fffff));
    pagelimit = (addr&0xa0000000)|0x00200000;
  }
  else if (!Config.HLE && (
/*    (0x9fc00000 <= addr && addr < 0x9fc80000) ||*/
    (0xbfc00000 <= addr && addr < 0xbfc80000))) {
    // BIOS
    source = (u_int *)((u_int)psxR+(start&0x7ffff));
    pagelimit = (addr&0xfff00000)|0x80000;
  }
  else
#endif
#ifdef MUPEN64
  if ((int)addr >= 0xa4000000 && (int)addr < 0xa4001000) {
    source = (u_int *)((u_int)SP_DMEM+start-0xa4000000);
    pagelimit = 0xa4001000;
  }
  else
#endif
  if ((int)addr >= 0x80000000 && (int)addr < 0x80000000+RAM_SIZE) {
    source = (u_int *)((u_int)rdram+start-0x80000000);
    pagelimit = 0x80000000+RAM_SIZE;
  }
#ifndef DISABLE_TLB
  else if ((signed int)addr >= (signed int)0xC0000000) {
    //printf("addr=%x mm=%x\n",(u_int)addr,(memory_map[start>>12]<<2));
    //if(tlb_LUT_r[start>>12])
      //source = (u_int *)(((int)rdram)+(tlb_LUT_r[start>>12]&0xFFFFF000)+(((int)addr)&0xFFF)-0x80000000);
    if((signed int)memory_map[start>>12]>=0) {
      source = (u_int *)((u_int)(start+(memory_map[start>>12]<<2)));
      pagelimit=(start+4096)&0xFFFFF000;
      int map=memory_map[start>>12];
      int i;
      for(i=0;i<5;i++) {
        //printf("start: %x next: %x\n",map,memory_map[pagelimit>>12]);
        if((map&0xBFFFFFFF)==(memory_map[pagelimit>>12]&0xBFFFFFFF)) pagelimit+=4096;
      }
      assem_debug("pagelimit=%x\n",pagelimit);
      assem_debug("mapping=%x (%x)\n",memory_map[start>>12],(memory_map[start>>12]<<2)+start);
    }
    else {
      assem_debug("Compile at unmapped memory address: %x \n", (int)addr);
      //assem_debug("start: %x next: %x\n",memory_map[start>>12],memory_map[(start+4096)>>12]);
      return -1; // Caller will invoke exception handler
    }
    //printf("source= %x\n",(int)source);
  }
#endif
  else {
    printf("Compile at bogus memory address: %x \n", (int)addr);
    exit(1);
  }

  /* Pass 1: disassemble */
  /* Pass 2: register dependencies, branch targets */
  /* Pass 3: register allocation */
  /* Pass 4: branch dependencies */
  /* Pass 5: pre-alloc */
  /* Pass 6: optimize clean/dirty state */
  /* Pass 7: flag 32-bit registers */
  /* Pass 8: assembly */
  /* Pass 9: linker */
  /* Pass 10: garbage collection / free memory */

  int i,j;
  int done=0;
  unsigned int type,op,op2;

  //printf("addr = %x source = %x %x\n", addr,source,source[0]);
  
  /* Pass 1 disassembly */

  for(i=0;!done;i++) {
    bt[i]=0;likely[i]=0;ooo[i]=0;op2=0;
    minimum_free_regs[i]=0;
    opcode[i]=op=source[i]>>26;
    switch(op)
    {
      case 0x00: strcpy(insn[i],"special"); type=NI;
        op2=source[i]&0x3f;
        switch(op2)
        {
          case 0x00: strcpy(insn[i],"SLL"); type=SHIFTIMM; break;
          case 0x02: strcpy(insn[i],"SRL"); type=SHIFTIMM; break;
          case 0x03: strcpy(insn[i],"SRA"); type=SHIFTIMM; break;
          case 0x04: strcpy(insn[i],"SLLV"); type=SHIFT; break;
          case 0x06: strcpy(insn[i],"SRLV"); type=SHIFT; break;
          case 0x07: strcpy(insn[i],"SRAV"); type=SHIFT; break;
          case 0x08: strcpy(insn[i],"JR"); type=RJUMP; break;
          case 0x09: strcpy(insn[i],"JALR"); type=RJUMP; break;
          case 0x0C: strcpy(insn[i],"SYSCALL"); type=SYSCALL; break;
          case 0x0D: strcpy(insn[i],"BREAK"); type=OTHER; break;
          case 0x0F: strcpy(insn[i],"SYNC"); type=OTHER; break;
          case 0x10: strcpy(insn[i],"MFHI"); type=MOV; break;
          case 0x11: strcpy(insn[i],"MTHI"); type=MOV; break;
          case 0x12: strcpy(insn[i],"MFLO"); type=MOV; break;
          case 0x13: strcpy(insn[i],"MTLO"); type=MOV; break;
          case 0x18: strcpy(insn[i],"MULT"); type=MULTDIV; break;
          case 0x19: strcpy(insn[i],"MULTU"); type=MULTDIV; break;
          case 0x1A: strcpy(insn[i],"DIV"); type=MULTDIV; break;
          case 0x1B: strcpy(insn[i],"DIVU"); type=MULTDIV; break;
          case 0x20: strcpy(insn[i],"ADD"); type=ALU; break;
          case 0x21: strcpy(insn[i],"ADDU"); type=ALU; break;
          case 0x22: strcpy(insn[i],"SUB"); type=ALU; break;
          case 0x23: strcpy(insn[i],"SUBU"); type=ALU; break;
          case 0x24: strcpy(insn[i],"AND"); type=ALU; break;
          case 0x25: strcpy(insn[i],"OR"); type=ALU; break;
          case 0x26: strcpy(insn[i],"XOR"); type=ALU; break;
          case 0x27: strcpy(insn[i],"NOR"); type=ALU; break;
          case 0x2A: strcpy(insn[i],"SLT"); type=ALU; break;
          case 0x2B: strcpy(insn[i],"SLTU"); type=ALU; break;
          case 0x30: strcpy(insn[i],"TGE"); type=NI; break;
          case 0x31: strcpy(insn[i],"TGEU"); type=NI; break;
          case 0x32: strcpy(insn[i],"TLT"); type=NI; break;
          case 0x33: strcpy(insn[i],"TLTU"); type=NI; break;
          case 0x34: strcpy(insn[i],"TEQ"); type=NI; break;
          case 0x36: strcpy(insn[i],"TNE"); type=NI; break;
#ifndef FORCE32
          case 0x14: strcpy(insn[i],"DSLLV"); type=SHIFT; break;
          case 0x16: strcpy(insn[i],"DSRLV"); type=SHIFT; break;
          case 0x17: strcpy(insn[i],"DSRAV"); type=SHIFT; break;
          case 0x1C: strcpy(insn[i],"DMULT"); type=MULTDIV; break;
          case 0x1D: strcpy(insn[i],"DMULTU"); type=MULTDIV; break;
          case 0x1E: strcpy(insn[i],"DDIV"); type=MULTDIV; break;
          case 0x1F: strcpy(insn[i],"DDIVU"); type=MULTDIV; break;
          case 0x2C: strcpy(insn[i],"DADD"); type=ALU; break;
          case 0x2D: strcpy(insn[i],"DADDU"); type=ALU; break;
          case 0x2E: strcpy(insn[i],"DSUB"); type=ALU; break;
          case 0x2F: strcpy(insn[i],"DSUBU"); type=ALU; break;
          case 0x38: strcpy(insn[i],"DSLL"); type=SHIFTIMM; break;
          case 0x3A: strcpy(insn[i],"DSRL"); type=SHIFTIMM; break;
          case 0x3B: strcpy(insn[i],"DSRA"); type=SHIFTIMM; break;
          case 0x3C: strcpy(insn[i],"DSLL32"); type=SHIFTIMM; break;
          case 0x3E: strcpy(insn[i],"DSRL32"); type=SHIFTIMM; break;
          case 0x3F: strcpy(insn[i],"DSRA32"); type=SHIFTIMM; break;
#endif
        }
        break;
      case 0x01: strcpy(insn[i],"regimm"); type=NI;
        op2=(source[i]>>16)&0x1f;
        switch(op2)
        {
          case 0x00: strcpy(insn[i],"BLTZ"); type=SJUMP; break;
          case 0x01: strcpy(insn[i],"BGEZ"); type=SJUMP; break;
          case 0x02: strcpy(insn[i],"BLTZL"); type=SJUMP; break;
          case 0x03: strcpy(insn[i],"BGEZL"); type=SJUMP; break;
          case 0x08: strcpy(insn[i],"TGEI"); type=NI; break;
          case 0x09: strcpy(insn[i],"TGEIU"); type=NI; break;
          case 0x0A: strcpy(insn[i],"TLTI"); type=NI; break;
          case 0x0B: strcpy(insn[i],"TLTIU"); type=NI; break;
          case 0x0C: strcpy(insn[i],"TEQI"); type=NI; break;
          case 0x0E: strcpy(insn[i],"TNEI"); type=NI; break;
          case 0x10: strcpy(insn[i],"BLTZAL"); type=SJUMP; break;
          case 0x11: strcpy(insn[i],"BGEZAL"); type=SJUMP; break;
          case 0x12: strcpy(insn[i],"BLTZALL"); type=SJUMP; break;
          case 0x13: strcpy(insn[i],"BGEZALL"); type=SJUMP; break;
        }
        break;
      case 0x02: strcpy(insn[i],"J"); type=UJUMP; break;
      case 0x03: strcpy(insn[i],"JAL"); type=UJUMP; break;
      case 0x04: strcpy(insn[i],"BEQ"); type=CJUMP; break;
      case 0x05: strcpy(insn[i],"BNE"); type=CJUMP; break;
      case 0x06: strcpy(insn[i],"BLEZ"); type=CJUMP; break;
      case 0x07: strcpy(insn[i],"BGTZ"); type=CJUMP; break;
      case 0x08: strcpy(insn[i],"ADDI"); type=IMM16; break;
      case 0x09: strcpy(insn[i],"ADDIU"); type=IMM16; break;
      case 0x0A: strcpy(insn[i],"SLTI"); type=IMM16; break;
      case 0x0B: strcpy(insn[i],"SLTIU"); type=IMM16; break;
      case 0x0C: strcpy(insn[i],"ANDI"); type=IMM16; break;
      case 0x0D: strcpy(insn[i],"ORI"); type=IMM16; break;
      case 0x0E: strcpy(insn[i],"XORI"); type=IMM16; break;
      case 0x0F: strcpy(insn[i],"LUI"); type=IMM16; break;
      case 0x10: strcpy(insn[i],"cop0"); type=NI;
        op2=(source[i]>>21)&0x1f;
        switch(op2)
        {
          case 0x00: strcpy(insn[i],"MFC0"); type=COP0; break;
          case 0x04: strcpy(insn[i],"MTC0"); type=COP0; break;
          case 0x10: strcpy(insn[i],"tlb"); type=NI;
          switch(source[i]&0x3f)
          {
            case 0x01: strcpy(insn[i],"TLBR"); type=COP0; break;
            case 0x02: strcpy(insn[i],"TLBWI"); type=COP0; break;
            case 0x06: strcpy(insn[i],"TLBWR"); type=COP0; break;
            case 0x08: strcpy(insn[i],"TLBP"); type=COP0; break;
#ifdef PCSX
            case 0x10: strcpy(insn[i],"RFE"); type=COP0; break;
#else
            case 0x18: strcpy(insn[i],"ERET"); type=COP0; break;
#endif
          }
        }
        break;
      case 0x11: strcpy(insn[i],"cop1"); type=NI;
        op2=(source[i]>>21)&0x1f;
        switch(op2)
        {
          case 0x00: strcpy(insn[i],"MFC1"); type=COP1; break;
          case 0x01: strcpy(insn[i],"DMFC1"); type=COP1; break;
          case 0x02: strcpy(insn[i],"CFC1"); type=COP1; break;
          case 0x04: strcpy(insn[i],"MTC1"); type=COP1; break;
          case 0x05: strcpy(insn[i],"DMTC1"); type=COP1; break;
          case 0x06: strcpy(insn[i],"CTC1"); type=COP1; break;
          case 0x08: strcpy(insn[i],"BC1"); type=FJUMP;
          switch((source[i]>>16)&0x3)
          {
            case 0x00: strcpy(insn[i],"BC1F"); break;
            case 0x01: strcpy(insn[i],"BC1T"); break;
            case 0x02: strcpy(insn[i],"BC1FL"); break;
            case 0x03: strcpy(insn[i],"BC1TL"); break;
          }
          break;
          case 0x10: strcpy(insn[i],"C1.S"); type=NI;
          switch(source[i]&0x3f)
          {
            case 0x00: strcpy(insn[i],"ADD.S"); type=FLOAT; break;
            case 0x01: strcpy(insn[i],"SUB.S"); type=FLOAT; break;
            case 0x02: strcpy(insn[i],"MUL.S"); type=FLOAT; break;
            case 0x03: strcpy(insn[i],"DIV.S"); type=FLOAT; break;
            case 0x04: strcpy(insn[i],"SQRT.S"); type=FLOAT; break;
            case 0x05: strcpy(insn[i],"ABS.S"); type=FLOAT; break;
            case 0x06: strcpy(insn[i],"MOV.S"); type=FLOAT; break;
            case 0x07: strcpy(insn[i],"NEG.S"); type=FLOAT; break;
            case 0x08: strcpy(insn[i],"ROUND.L.S"); type=FCONV; break;
            case 0x09: strcpy(insn[i],"TRUNC.L.S"); type=FCONV; break;
            case 0x0A: strcpy(insn[i],"CEIL.L.S"); type=FCONV; break;
            case 0x0B: strcpy(insn[i],"FLOOR.L.S"); type=FCONV; break;
            case 0x0C: strcpy(insn[i],"ROUND.W.S"); type=FCONV; break;
            case 0x0D: strcpy(insn[i],"TRUNC.W.S"); type=FCONV; break;
            case 0x0E: strcpy(insn[i],"CEIL.W.S"); type=FCONV; break;
            case 0x0F: strcpy(insn[i],"FLOOR.W.S"); type=FCONV; break;
            case 0x21: strcpy(insn[i],"CVT.D.S"); type=FCONV; break;
            case 0x24: strcpy(insn[i],"CVT.W.S"); type=FCONV; break;
            case 0x25: strcpy(insn[i],"CVT.L.S"); type=FCONV; break;
            case 0x30: strcpy(insn[i],"C.F.S"); type=FCOMP; break;
            case 0x31: strcpy(insn[i],"C.UN.S"); type=FCOMP; break;
            case 0x32: strcpy(insn[i],"C.EQ.S"); type=FCOMP; break;
            case 0x33: strcpy(insn[i],"C.UEQ.S"); type=FCOMP; break;
            case 0x34: strcpy(insn[i],"C.OLT.S"); type=FCOMP; break;
            case 0x35: strcpy(insn[i],"C.ULT.S"); type=FCOMP; break;
            case 0x36: strcpy(insn[i],"C.OLE.S"); type=FCOMP; break;
            case 0x37: strcpy(insn[i],"C.ULE.S"); type=FCOMP; break;
            case 0x38: strcpy(insn[i],"C.SF.S"); type=FCOMP; break;
            case 0x39: strcpy(insn[i],"C.NGLE.S"); type=FCOMP; break;
            case 0x3A: strcpy(insn[i],"C.SEQ.S"); type=FCOMP; break;
            case 0x3B: strcpy(insn[i],"C.NGL.S"); type=FCOMP; break;
            case 0x3C: strcpy(insn[i],"C.LT.S"); type=FCOMP; break;
            case 0x3D: strcpy(insn[i],"C.NGE.S"); type=FCOMP; break;
            case 0x3E: strcpy(insn[i],"C.LE.S"); type=FCOMP; break;
            case 0x3F: strcpy(insn[i],"C.NGT.S"); type=FCOMP; break;
          }
          break;
          case 0x11: strcpy(insn[i],"C1.D"); type=NI;
          switch(source[i]&0x3f)
          {
            case 0x00: strcpy(insn[i],"ADD.D"); type=FLOAT; break;
            case 0x01: strcpy(insn[i],"SUB.D"); type=FLOAT; break;
            case 0x02: strcpy(insn[i],"MUL.D"); type=FLOAT; break;
            case 0x03: strcpy(insn[i],"DIV.D"); type=FLOAT; break;
            case 0x04: strcpy(insn[i],"SQRT.D"); type=FLOAT; break;
            case 0x05: strcpy(insn[i],"ABS.D"); type=FLOAT; break;
            case 0x06: strcpy(insn[i],"MOV.D"); type=FLOAT; break;
            case 0x07: strcpy(insn[i],"NEG.D"); type=FLOAT; break;
            case 0x08: strcpy(insn[i],"ROUND.L.D"); type=FCONV; break;
            case 0x09: strcpy(insn[i],"TRUNC.L.D"); type=FCONV; break;
            case 0x0A: strcpy(insn[i],"CEIL.L.D"); type=FCONV; break;
            case 0x0B: strcpy(insn[i],"FLOOR.L.D"); type=FCONV; break;
            case 0x0C: strcpy(insn[i],"ROUND.W.D"); type=FCONV; break;
            case 0x0D: strcpy(insn[i],"TRUNC.W.D"); type=FCONV; break;
            case 0x0E: strcpy(insn[i],"CEIL.W.D"); type=FCONV; break;
            case 0x0F: strcpy(insn[i],"FLOOR.W.D"); type=FCONV; break;
            case 0x20: strcpy(insn[i],"CVT.S.D"); type=FCONV; break;
            case 0x24: strcpy(insn[i],"CVT.W.D"); type=FCONV; break;
            case 0x25: strcpy(insn[i],"CVT.L.D"); type=FCONV; break;
            case 0x30: strcpy(insn[i],"C.F.D"); type=FCOMP; break;
            case 0x31: strcpy(insn[i],"C.UN.D"); type=FCOMP; break;
            case 0x32: strcpy(insn[i],"C.EQ.D"); type=FCOMP; break;
            case 0x33: strcpy(insn[i],"C.UEQ.D"); type=FCOMP; break;
            case 0x34: strcpy(insn[i],"C.OLT.D"); type=FCOMP; break;
            case 0x35: strcpy(insn[i],"C.ULT.D"); type=FCOMP; break;
            case 0x36: strcpy(insn[i],"C.OLE.D"); type=FCOMP; break;
            case 0x37: strcpy(insn[i],"C.ULE.D"); type=FCOMP; break;
            case 0x38: strcpy(insn[i],"C.SF.D"); type=FCOMP; break;
            case 0x39: strcpy(insn[i],"C.NGLE.D"); type=FCOMP; break;
            case 0x3A: strcpy(insn[i],"C.SEQ.D"); type=FCOMP; break;
            case 0x3B: strcpy(insn[i],"C.NGL.D"); type=FCOMP; break;
            case 0x3C: strcpy(insn[i],"C.LT.D"); type=FCOMP; break;
            case 0x3D: strcpy(insn[i],"C.NGE.D"); type=FCOMP; break;
            case 0x3E: strcpy(insn[i],"C.LE.D"); type=FCOMP; break;
            case 0x3F: strcpy(insn[i],"C.NGT.D"); type=FCOMP; break;
          }
          break;
          case 0x14: strcpy(insn[i],"C1.W"); type=NI;
          switch(source[i]&0x3f)
          {
            case 0x20: strcpy(insn[i],"CVT.S.W"); type=FCONV; break;
            case 0x21: strcpy(insn[i],"CVT.D.W"); type=FCONV; break;
          }
          break;
          case 0x15: strcpy(insn[i],"C1.L"); type=NI;
          switch(source[i]&0x3f)
          {
            case 0x20: strcpy(insn[i],"CVT.S.L"); type=FCONV; break;
            case 0x21: strcpy(insn[i],"CVT.D.L"); type=FCONV; break;
          }
          break;
        }
        break;
#ifndef FORCE32
      case 0x14: strcpy(insn[i],"BEQL"); type=CJUMP; break;
      case 0x15: strcpy(insn[i],"BNEL"); type=CJUMP; break;
      case 0x16: strcpy(insn[i],"BLEZL"); type=CJUMP; break;
      case 0x17: strcpy(insn[i],"BGTZL"); type=CJUMP; break;
      case 0x18: strcpy(insn[i],"DADDI"); type=IMM16; break;
      case 0x19: strcpy(insn[i],"DADDIU"); type=IMM16; break;
      case 0x1A: strcpy(insn[i],"LDL"); type=LOADLR; break;
      case 0x1B: strcpy(insn[i],"LDR"); type=LOADLR; break;
#endif
      case 0x20: strcpy(insn[i],"LB"); type=LOAD; break;
      case 0x21: strcpy(insn[i],"LH"); type=LOAD; break;
      case 0x22: strcpy(insn[i],"LWL"); type=LOADLR; break;
      case 0x23: strcpy(insn[i],"LW"); type=LOAD; break;
      case 0x24: strcpy(insn[i],"LBU"); type=LOAD; break;
      case 0x25: strcpy(insn[i],"LHU"); type=LOAD; break;
      case 0x26: strcpy(insn[i],"LWR"); type=LOADLR; break;
      case 0x27: strcpy(insn[i],"LWU"); type=LOAD; break;
      case 0x28: strcpy(insn[i],"SB"); type=STORE; break;
      case 0x29: strcpy(insn[i],"SH"); type=STORE; break;
      case 0x2A: strcpy(insn[i],"SWL"); type=STORELR; break;
      case 0x2B: strcpy(insn[i],"SW"); type=STORE; break;
#ifndef FORCE32
      case 0x2C: strcpy(insn[i],"SDL"); type=STORELR; break;
      case 0x2D: strcpy(insn[i],"SDR"); type=STORELR; break;
#endif
      case 0x2E: strcpy(insn[i],"SWR"); type=STORELR; break;
      case 0x2F: strcpy(insn[i],"CACHE"); type=NOP; break;
      case 0x30: strcpy(insn[i],"LL"); type=NI; break;
      case 0x31: strcpy(insn[i],"LWC1"); type=C1LS; break;
#ifndef FORCE32
      case 0x34: strcpy(insn[i],"LLD"); type=NI; break;
      case 0x35: strcpy(insn[i],"LDC1"); type=C1LS; break;
      case 0x37: strcpy(insn[i],"LD"); type=LOAD; break;
#endif
      case 0x38: strcpy(insn[i],"SC"); type=NI; break;
      case 0x39: strcpy(insn[i],"SWC1"); type=C1LS; break;
#ifndef FORCE32
      case 0x3C: strcpy(insn[i],"SCD"); type=NI; break;
      case 0x3D: strcpy(insn[i],"SDC1"); type=C1LS; break;
      case 0x3F: strcpy(insn[i],"SD"); type=STORE; break;
#endif
#ifdef PCSX
      case 0x12: strcpy(insn[i],"COP2"); type=NI;
        // note: COP MIPS-1 encoding differs from MIPS32
        op2=(source[i]>>21)&0x1f;
        if (source[i]&0x3f) {
          if (gte_handlers[source[i]&0x3f]!=NULL) {
            snprintf(insn[i], sizeof(insn[i]), "COP2 %x", source[i]&0x3f);
            type=C2OP;
          }
        }
        else switch(op2)
        {
          case 0x00: strcpy(insn[i],"MFC2"); type=COP2; break;
          case 0x02: strcpy(insn[i],"CFC2"); type=COP2; break;
          case 0x04: strcpy(insn[i],"MTC2"); type=COP2; break;
          case 0x06: strcpy(insn[i],"CTC2"); type=COP2; break;
        }
        break;
      case 0x32: strcpy(insn[i],"LWC2"); type=C2LS; break;
      case 0x3A: strcpy(insn[i],"SWC2"); type=C2LS; break;
      case 0x3B: strcpy(insn[i],"HLECALL"); type=HLECALL; break;
#endif
      default: strcpy(insn[i],"???"); type=NI;
        printf("NI %08x @%08x (%08x)\n", source[i], addr + i*4, addr);
        break;
    }
    itype[i]=type;
    opcode2[i]=op2;
    /* Get registers/immediates */
    lt1[i]=0;
    us1[i]=0;
    us2[i]=0;
    dep1[i]=0;
    dep2[i]=0;
    switch(type) {
      case LOAD:
        rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=0;
        rt1[i]=(source[i]>>16)&0x1f;
        rt2[i]=0;
        imm[i]=(short)source[i];
        break;
      case STORE:
      case STORELR:
        rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=(source[i]>>16)&0x1f;
        rt1[i]=0;
        rt2[i]=0;
        imm[i]=(short)source[i];
        if(op==0x2c||op==0x2d||op==0x3f) us1[i]=rs2[i]; // 64-bit SDL/SDR/SD
        break;
      case LOADLR:
        // LWL/LWR only load part of the register,
        // therefore the target register must be treated as a source too
        rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=(source[i]>>16)&0x1f;
        rt1[i]=(source[i]>>16)&0x1f;
        rt2[i]=0;
        imm[i]=(short)source[i];
        if(op==0x1a||op==0x1b) us1[i]=rs2[i]; // LDR/LDL
        if(op==0x26) dep1[i]=rt1[i]; // LWR
        break;
      case IMM16:
        if (op==0x0f) rs1[i]=0; // LUI instruction has no source register
        else rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=0;
        rt1[i]=(source[i]>>16)&0x1f;
        rt2[i]=0;
        if(op>=0x0c&&op<=0x0e) { // ANDI/ORI/XORI
          imm[i]=(unsigned short)source[i];
        }else{
          imm[i]=(short)source[i];
        }
        if(op==0x18||op==0x19) us1[i]=rs1[i]; // DADDI/DADDIU
        if(op==0x0a||op==0x0b) us1[i]=rs1[i]; // SLTI/SLTIU
        if(op==0x0d||op==0x0e) dep1[i]=rs1[i]; // ORI/XORI
        break;
      case UJUMP:
        rs1[i]=0;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        // The JAL instruction writes to r31.
        if (op&1) {
          rt1[i]=31;
        }
        rs2[i]=CCREG;
        break;
      case RJUMP:
        rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        // The JALR instruction writes to rd.
        if (op2&1) {
          rt1[i]=(source[i]>>11)&0x1f;
        }
        rs2[i]=CCREG;
        break;
      case CJUMP:
        rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=(source[i]>>16)&0x1f;
        rt1[i]=0;
        rt2[i]=0;
        if(op&2) { // BGTZ/BLEZ
          rs2[i]=0;
        }
        us1[i]=rs1[i];
        us2[i]=rs2[i];
        likely[i]=op>>4;
        break;
      case SJUMP:
        rs1[i]=(source[i]>>21)&0x1f;
        rs2[i]=CCREG;
        rt1[i]=0;
        rt2[i]=0;
        us1[i]=rs1[i];
        if(op2&0x10) { // BxxAL
          rt1[i]=31;
          // NOTE: If the branch is not taken, r31 is still overwritten
        }
        likely[i]=(op2&2)>>1;
        break;
      case FJUMP:
        rs1[i]=FSREG;
        rs2[i]=CSREG;
        rt1[i]=0;
        rt2[i]=0;
        likely[i]=((source[i])>>17)&1;
        break;
      case ALU:
        rs1[i]=(source[i]>>21)&0x1f; // source
        rs2[i]=(source[i]>>16)&0x1f; // subtract amount
        rt1[i]=(source[i]>>11)&0x1f; // destination
        rt2[i]=0;
        if(op2==0x2a||op2==0x2b) { // SLT/SLTU
          us1[i]=rs1[i];us2[i]=rs2[i];
        }
        else if(op2>=0x24&&op2<=0x27) { // AND/OR/XOR/NOR
          dep1[i]=rs1[i];dep2[i]=rs2[i];
        }
        else if(op2>=0x2c&&op2<=0x2f) { // DADD/DSUB
          dep1[i]=rs1[i];dep2[i]=rs2[i];
        }
        break;
      case MULTDIV:
        rs1[i]=(source[i]>>21)&0x1f; // source
        rs2[i]=(source[i]>>16)&0x1f; // divisor
        rt1[i]=HIREG;
        rt2[i]=LOREG;
        if (op2>=0x1c&&op2<=0x1f) { // DMULT/DMULTU/DDIV/DDIVU
          us1[i]=rs1[i];us2[i]=rs2[i];
        }
        break;
      case MOV:
        rs1[i]=0;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        if(op2==0x10) rs1[i]=HIREG; // MFHI
        if(op2==0x11) rt1[i]=HIREG; // MTHI
        if(op2==0x12) rs1[i]=LOREG; // MFLO
        if(op2==0x13) rt1[i]=LOREG; // MTLO
        if((op2&0x1d)==0x10) rt1[i]=(source[i]>>11)&0x1f; // MFxx
        if((op2&0x1d)==0x11) rs1[i]=(source[i]>>21)&0x1f; // MTxx
        dep1[i]=rs1[i];
        break;
      case SHIFT:
        rs1[i]=(source[i]>>16)&0x1f; // target of shift
        rs2[i]=(source[i]>>21)&0x1f; // shift amount
        rt1[i]=(source[i]>>11)&0x1f; // destination
        rt2[i]=0;
        // DSLLV/DSRLV/DSRAV are 64-bit
        if(op2>=0x14&&op2<=0x17) us1[i]=rs1[i];
        break;
      case SHIFTIMM:
        rs1[i]=(source[i]>>16)&0x1f;
        rs2[i]=0;
        rt1[i]=(source[i]>>11)&0x1f;
        rt2[i]=0;
        imm[i]=(source[i]>>6)&0x1f;
        // DSxx32 instructions
        if(op2>=0x3c) imm[i]|=0x20;
        // DSLL/DSRL/DSRA/DSRA32/DSRL32 but not DSLL32 require 64-bit source
        if(op2>=0x38&&op2!=0x3c) us1[i]=rs1[i];
        break;
      case COP0:
        rs1[i]=0;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        if(op2==0) rt1[i]=(source[i]>>16)&0x1F; // MFC0
        if(op2==4) rs1[i]=(source[i]>>16)&0x1F; // MTC0
        if(op2==4&&((source[i]>>11)&0x1f)==12) rt2[i]=CSREG; // Status
        if(op2==16) if((source[i]&0x3f)==0x18) rs2[i]=CCREG; // ERET
        break;
      case COP1:
      case COP2:
        rs1[i]=0;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        if(op2<3) rt1[i]=(source[i]>>16)&0x1F; // MFC1/DMFC1/CFC1
        if(op2>3) rs1[i]=(source[i]>>16)&0x1F; // MTC1/DMTC1/CTC1
        if(op2==5) us1[i]=rs1[i]; // DMTC1
        rs2[i]=CSREG;
        break;
      case C1LS:
        rs1[i]=(source[i]>>21)&0x1F;
        rs2[i]=CSREG;
        rt1[i]=0;
        rt2[i]=0;
        imm[i]=(short)source[i];
        break;
      case C2LS:
        rs1[i]=(source[i]>>21)&0x1F;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        imm[i]=(short)source[i];
        break;
      case FLOAT:
      case FCONV:
        rs1[i]=0;
        rs2[i]=CSREG;
        rt1[i]=0;
        rt2[i]=0;
        break;
      case FCOMP:
        rs1[i]=FSREG;
        rs2[i]=CSREG;
        rt1[i]=FSREG;
        rt2[i]=0;
        break;
      case SYSCALL:
      case HLECALL:
      case INTCALL:
        rs1[i]=CCREG;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
        break;
      default:
        rs1[i]=0;
        rs2[i]=0;
        rt1[i]=0;
        rt2[i]=0;
    }
    /* Calculate branch target addresses */
    if(type==UJUMP)
      ba[i]=((start+i*4+4)&0xF0000000)|(((unsigned int)source[i]<<6)>>4);
    else if(type==CJUMP&&rs1[i]==rs2[i]&&(op&1))
      ba[i]=start+i*4+8; // Ignore never taken branch
    else if(type==SJUMP&&rs1[i]==0&&!(op2&1))
      ba[i]=start+i*4+8; // Ignore never taken branch
    else if(type==CJUMP||type==SJUMP||type==FJUMP)
      ba[i]=start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14);
    else ba[i]=-1;
#ifdef PCSX
    if(i>0&&(itype[i-1]==RJUMP||itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==FJUMP)) {
      int do_in_intrp=0;
      // branch in delay slot?
      if(type==RJUMP||type==UJUMP||type==CJUMP||type==SJUMP||type==FJUMP) {
        // don't handle first branch and call interpreter if it's hit
        printf("branch in delay slot @%08x (%08x)\n", addr + i*4, addr);
        do_in_intrp=1;
      }
      // basic load delay detection
      else if((type==LOAD||type==LOADLR||type==COP0||type==COP2||type==C2LS)&&rt1[i]!=0) {
        int t=(ba[i-1]-start)/4;
        if(0 <= t && t < i &&(rt1[i]==rs1[t]||rt1[i]==rs2[t])&&itype[t]!=CJUMP&&itype[t]!=SJUMP) {
          // jump target wants DS result - potential load delay effect
          printf("load delay @%08x (%08x)\n", addr + i*4, addr);
          do_in_intrp=1;
          bt[t+1]=1; // expected return from interpreter
        }
        else if(i>=2&&rt1[i-2]==2&&rt1[i]==2&&rs1[i]!=2&&rs2[i]!=2&&rs1[i-1]!=2&&rs2[i-1]!=2&&
              !(i>=3&&(itype[i-3]==RJUMP||itype[i-3]==UJUMP||itype[i-3]==CJUMP||itype[i-3]==SJUMP))) {
          // v0 overwrite like this is a sign of trouble, bail out
          printf("v0 overwrite @%08x (%08x)\n", addr + i*4, addr);
          do_in_intrp=1;
        }
      }
      if(do_in_intrp) {
        rs1[i-1]=CCREG;
        rs2[i-1]=rt1[i-1]=rt2[i-1]=0;
        ba[i-1]=-1;
        itype[i-1]=INTCALL;
        done=2;
        i--; // don't compile the DS
      }
    }
#endif
    /* Is this the end of the block? */
    if(i>0&&(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000)) {
      if(rt1[i-1]==0) { // Continue past subroutine call (JAL)
        done=2;
      }
      else {
        if(stop_after_jal) done=1;
        // Stop on BREAK
        if((source[i+1]&0xfc00003f)==0x0d) done=1;
      }
      // Don't recompile stuff that's already compiled
      if(check_addr(start+i*4+4)) done=1;
      // Don't get too close to the limit
      if(i>MAXBLOCK/2) done=1;
    }
    if(itype[i]==SYSCALL&&stop_after_jal) done=1;
    if(itype[i]==HLECALL||itype[i]==INTCALL) done=2;
    if(done==2) {
      // Does the block continue due to a branch?
      for(j=i-1;j>=0;j--)
      {
        if(ba[j]==start+i*4+4) done=j=0;
        if(ba[j]==start+i*4+8) done=j=0;
      }
    }
    //assert(i<MAXBLOCK-1);
    if(start+i*4==pagelimit-4) done=1;
    assert(start+i*4<pagelimit);
    if (i==MAXBLOCK-1) done=1;
    // Stop if we're compiling junk
    if(itype[i]==NI&&opcode[i]==0x11) {
      done=stop_after_jal=1;
      printf("Disabled speculative precompilation\n");
    }
  }
  slen=i;
  if(itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==RJUMP||itype[i-1]==FJUMP) {
    if(start+i*4==pagelimit) {
      itype[i-1]=SPAN;
    }
  }
  assert(slen>0);

  /* Pass 2 - Register dependencies and branch targets */

  unneeded_registers(0,slen-1,0);
  
  /* Pass 3 - Register allocation */

  struct regstat current; // Current register allocations/status
  current.is32=1;
  current.dirty=0;
  current.u=unneeded_reg[0];
  current.uu=unneeded_reg_upper[0];
  clear_all_regs(current.regmap);
  alloc_reg(&current,0,CCREG);
  dirty_reg(&current,CCREG);
  current.isconst=0;
  current.wasconst=0;
  int ds=0;
  int cc=0;
  int hr=-1;

#ifndef FORCE32
  provisional_32bit();
#endif
  if((u_int)addr&1) {
    // First instruction is delay slot
    cc=-1;
    bt[1]=1;
    ds=1;
    unneeded_reg[0]=1;
    unneeded_reg_upper[0]=1;
    current.regmap[HOST_BTREG]=BTREG;
  }
  
  for(i=0;i<slen;i++)
  {
    if(bt[i])
    {
      int hr;
      for(hr=0;hr<HOST_REGS;hr++)
      {
        // Is this really necessary?
        if(current.regmap[hr]==0) current.regmap[hr]=-1;
      }
      current.isconst=0;
    }
    if(i>1)
    {
      if((opcode[i-2]&0x2f)==0x05) // BNE/BNEL
      {
        if(rs1[i-2]==0||rs2[i-2]==0)
        {
          if(rs1[i-2]) {
            current.is32|=1LL<<rs1[i-2];
            int hr=get_reg(current.regmap,rs1[i-2]|64);
            if(hr>=0) current.regmap[hr]=-1;
          }
          if(rs2[i-2]) {
            current.is32|=1LL<<rs2[i-2];
            int hr=get_reg(current.regmap,rs2[i-2]|64);
            if(hr>=0) current.regmap[hr]=-1;
          }
        }
      }
    }
#ifndef FORCE32
    // If something jumps here with 64-bit values
    // then promote those registers to 64 bits
    if(bt[i])
    {
      uint64_t temp_is32=current.is32;
      for(j=i-1;j>=0;j--)
      {
        if(ba[j]==start+i*4) 
          temp_is32&=branch_regs[j].is32;
      }
      for(j=i;j<slen;j++)
      {
        if(ba[j]==start+i*4) 
          //temp_is32=1;
          temp_is32&=p32[j];
      }
      if(temp_is32!=current.is32) {
        //printf("dumping 32-bit regs (%x)\n",start+i*4);
        #ifdef DESTRUCTIVE_WRITEBACK
        for(hr=0;hr<HOST_REGS;hr++)
        {
          int r=current.regmap[hr];
          if(r>0&&r<64)
          {
            if((current.dirty>>hr)&((current.is32&~temp_is32)>>r)&1) {
              temp_is32|=1LL<<r;
              //printf("restore %d\n",r);
            }
          }
        }
        #endif
        current.is32=temp_is32;
      }
    }
#else
    current.is32=-1LL;
#endif

    memcpy(regmap_pre[i],current.regmap,sizeof(current.regmap));
    regs[i].wasconst=current.isconst;
    regs[i].was32=current.is32;
    regs[i].wasdirty=current.dirty;
    #if defined(DESTRUCTIVE_WRITEBACK) && !defined(FORCE32)
    // To change a dirty register from 32 to 64 bits, we must write
    // it out during the previous cycle (for branches, 2 cycles)
    if(i<slen-1&&bt[i+1]&&itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP&&itype[i-1]!=FJUMP)
    {
      uint64_t temp_is32=current.is32;
      for(j=i-1;j>=0;j--)
      {
        if(ba[j]==start+i*4+4) 
          temp_is32&=branch_regs[j].is32;
      }
      for(j=i;j<slen;j++)
      {
        if(ba[j]==start+i*4+4) 
          //temp_is32=1;
          temp_is32&=p32[j];
      }
      if(temp_is32!=current.is32) {
        //printf("pre-dumping 32-bit regs (%x)\n",start+i*4);
        for(hr=0;hr<HOST_REGS;hr++)
        {
          int r=current.regmap[hr];
          if(r>0)
          {
            if((current.dirty>>hr)&((current.is32&~temp_is32)>>(r&63))&1) {
              if(itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP&&itype[i]!=RJUMP&&itype[i]!=FJUMP)
              {
                if(rs1[i]!=(r&63)&&rs2[i]!=(r&63))
                {
                  //printf("dump %d/r%d\n",hr,r);
                  current.regmap[hr]=-1;
                  if(get_reg(current.regmap,r|64)>=0) 
                    current.regmap[get_reg(current.regmap,r|64)]=-1;
                }
              }
            }
          }
        }
      }
    }
    else if(i<slen-2&&bt[i+2]&&(source[i-1]>>16)!=0x1000&&(itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP))
    {
      uint64_t temp_is32=current.is32;
      for(j=i-1;j>=0;j--)
      {
        if(ba[j]==start+i*4+8) 
          temp_is32&=branch_regs[j].is32;
      }
      for(j=i;j<slen;j++)
      {
        if(ba[j]==start+i*4+8) 
          //temp_is32=1;
          temp_is32&=p32[j];
      }
      if(temp_is32!=current.is32) {
        //printf("pre-dumping 32-bit regs (%x)\n",start+i*4);
        for(hr=0;hr<HOST_REGS;hr++)
        {
          int r=current.regmap[hr];
          if(r>0)
          {
            if((current.dirty>>hr)&((current.is32&~temp_is32)>>(r&63))&1) {
              if(rs1[i]!=(r&63)&&rs2[i]!=(r&63)&&rs1[i+1]!=(r&63)&&rs2[i+1]!=(r&63))
              {
                //printf("dump %d/r%d\n",hr,r);
                current.regmap[hr]=-1;
                if(get_reg(current.regmap,r|64)>=0) 
                  current.regmap[get_reg(current.regmap,r|64)]=-1;
              }
            }
          }
        }
      }
    }
    #endif
    if(itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP&&itype[i]!=RJUMP&&itype[i]!=FJUMP) {
      if(i+1<slen) {
        current.u=unneeded_reg[i+1]&~((1LL<<rs1[i])|(1LL<<rs2[i]));
        current.uu=unneeded_reg_upper[i+1]&~((1LL<<us1[i])|(1LL<<us2[i]));
        if((~current.uu>>rt1[i])&1) current.uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]));
        current.u|=1;
        current.uu|=1;
      } else {
        current.u=1;
        current.uu=1;
      }
    } else {
      if(i+1<slen) {
        current.u=branch_unneeded_reg[i]&~((1LL<<rs1[i+1])|(1LL<<rs2[i+1]));
        current.uu=branch_unneeded_reg_upper[i]&~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
        if((~current.uu>>rt1[i+1])&1) current.uu&=~((1LL<<dep1[i+1])|(1LL<<dep2[i+1]));
        current.u&=~((1LL<<rs1[i])|(1LL<<rs2[i]));
        current.uu&=~((1LL<<us1[i])|(1LL<<us2[i]));
        current.u|=1;
        current.uu|=1;
      } else { printf("oops, branch at end of block with no delay slot\n");exit(1); }
    }
    is_ds[i]=ds;
    if(ds) {
      ds=0; // Skip delay slot, already allocated as part of branch
      // ...but we need to alloc it in case something jumps here
      if(i+1<slen) {
        current.u=branch_unneeded_reg[i-1]&unneeded_reg[i+1];
        current.uu=branch_unneeded_reg_upper[i-1]&unneeded_reg_upper[i+1];
      }else{
        current.u=branch_unneeded_reg[i-1];
        current.uu=branch_unneeded_reg_upper[i-1];
      }
      current.u&=~((1LL<<rs1[i])|(1LL<<rs2[i]));
      current.uu&=~((1LL<<us1[i])|(1LL<<us2[i]));
      if((~current.uu>>rt1[i])&1) current.uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]));
      current.u|=1;
      current.uu|=1;
      struct regstat temp;
      memcpy(&temp,&current,sizeof(current));
      temp.wasdirty=temp.dirty;
      temp.was32=temp.is32;
      // TODO: Take into account unconditional branches, as below
      delayslot_alloc(&temp,i);
      memcpy(regs[i].regmap,temp.regmap,sizeof(temp.regmap));
      regs[i].wasdirty=temp.wasdirty;
      regs[i].was32=temp.was32;
      regs[i].dirty=temp.dirty;
      regs[i].is32=temp.is32;
      regs[i].isconst=0;
      regs[i].wasconst=0;
      current.isconst=0;
      // Create entry (branch target) regmap
      for(hr=0;hr<HOST_REGS;hr++)
      {
        int r=temp.regmap[hr];
        if(r>=0) {
          if(r!=regmap_pre[i][hr]) {
            regs[i].regmap_entry[hr]=-1;
          }
          else
          {
            if(r<64){
              if((current.u>>r)&1) {
                regs[i].regmap_entry[hr]=-1;
                regs[i].regmap[hr]=-1;
                //Don't clear regs in the delay slot as the branch might need them
                //current.regmap[hr]=-1;
              }else
                regs[i].regmap_entry[hr]=r;
            }
            else {
              if((current.uu>>(r&63))&1) {
                regs[i].regmap_entry[hr]=-1;
                regs[i].regmap[hr]=-1;
                //Don't clear regs in the delay slot as the branch might need them
                //current.regmap[hr]=-1;
              }else
                regs[i].regmap_entry[hr]=r;
            }
          }
        } else {
          // First instruction expects CCREG to be allocated
          if(i==0&&hr==HOST_CCREG) 
            regs[i].regmap_entry[hr]=CCREG;
          else
            regs[i].regmap_entry[hr]=-1;
        }
      }
    }
    else { // Not delay slot
      switch(itype[i]) {
        case UJUMP:
          //current.isconst=0; // DEBUG
          //current.wasconst=0; // DEBUG
          //regs[i].wasconst=0; // DEBUG
          clear_const(&current,rt1[i]);
          alloc_cc(&current,i);
          dirty_reg(&current,CCREG);
          ooo[i]=1;
          delayslot_alloc(&current,i+1);
          if (rt1[i]==31) {
            alloc_reg(&current,i,31);
            dirty_reg(&current,31);
            //assert(rs1[i+1]!=31&&rs2[i+1]!=31);
            //assert(rt1[i+1]!=rt1[i]);
            #ifdef REG_PREFETCH
            alloc_reg(&current,i,PTEMP);
            #endif
            //current.is32|=1LL<<rt1[i];
          }
          //current.isconst=0; // DEBUG
          ds=1;
          //printf("i=%d, isconst=%x\n",i,current.isconst);
          break;
        case RJUMP:
          //current.isconst=0;
          //current.wasconst=0;
          //regs[i].wasconst=0;
          clear_const(&current,rs1[i]);
          clear_const(&current,rt1[i]);
          alloc_cc(&current,i);
          dirty_reg(&current,CCREG);
          if(rs1[i]!=rt1[i+1]&&rs1[i]!=rt2[i+1]) {
            alloc_reg(&current,i,rs1[i]);
            if (rt1[i]!=0) {
              alloc_reg(&current,i,rt1[i]);
              dirty_reg(&current,rt1[i]);
              assert(rs1[i+1]!=rt1[i]&&rs2[i+1]!=rt1[i]);
              assert(rt1[i+1]!=rt1[i]);
              #ifdef REG_PREFETCH
              alloc_reg(&current,i,PTEMP);
              #endif
            }
            #ifdef USE_MINI_HT
            if(rs1[i]==31) { // JALR
              alloc_reg(&current,i,RHASH);
              #ifndef HOST_IMM_ADDR32
              alloc_reg(&current,i,RHTBL);
              #endif
            }
            #endif
            delayslot_alloc(&current,i+1);
          } else {
            // The delay slot overwrites our source register,
            // allocate a temporary register to hold the old value.
            current.isconst=0;
            current.wasconst=0;
            regs[i].wasconst=0;
            delayslot_alloc(&current,i+1);
            current.isconst=0;
            alloc_reg(&current,i,RTEMP);
          }
          //current.isconst=0; // DEBUG
          ooo[i]=1;
          ds=1;
          break;
        case CJUMP:
          //current.isconst=0;
          //current.wasconst=0;
          //regs[i].wasconst=0;
          clear_const(&current,rs1[i]);
          clear_const(&current,rs2[i]);
          if((opcode[i]&0x3E)==4) // BEQ/BNE
          {
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            if(rs1[i]) alloc_reg(&current,i,rs1[i]);
            if(rs2[i]) alloc_reg(&current,i,rs2[i]);
            if(!((current.is32>>rs1[i])&(current.is32>>rs2[i])&1))
            {
              if(rs1[i]) alloc_reg64(&current,i,rs1[i]);
              if(rs2[i]) alloc_reg64(&current,i,rs2[i]);
            }
            if((rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1]))||
               (rs2[i]&&(rs2[i]==rt1[i+1]||rs2[i]==rt2[i+1]))) {
              // The delay slot overwrites one of our conditions.
              // Allocate the branch condition registers instead.
              current.isconst=0;
              current.wasconst=0;
              regs[i].wasconst=0;
              if(rs1[i]) alloc_reg(&current,i,rs1[i]);
              if(rs2[i]) alloc_reg(&current,i,rs2[i]);
              if(!((current.is32>>rs1[i])&(current.is32>>rs2[i])&1))
              {
                if(rs1[i]) alloc_reg64(&current,i,rs1[i]);
                if(rs2[i]) alloc_reg64(&current,i,rs2[i]);
              }
            }
            else
            {
              ooo[i]=1;
              delayslot_alloc(&current,i+1);
            }
          }
          else
          if((opcode[i]&0x3E)==6) // BLEZ/BGTZ
          {
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,rs1[i]);
            if(!(current.is32>>rs1[i]&1))
            {
              alloc_reg64(&current,i,rs1[i]);
            }
            if(rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1])) {
              // The delay slot overwrites one of our conditions.
              // Allocate the branch condition registers instead.
              current.isconst=0;
              current.wasconst=0;
              regs[i].wasconst=0;
              if(rs1[i]) alloc_reg(&current,i,rs1[i]);
              if(!((current.is32>>rs1[i])&1))
              {
                if(rs1[i]) alloc_reg64(&current,i,rs1[i]);
              }
            }
            else
            {
              ooo[i]=1;
              delayslot_alloc(&current,i+1);
            }
          }
          else
          // Don't alloc the delay slot yet because we might not execute it
          if((opcode[i]&0x3E)==0x14) // BEQL/BNEL
          {
            current.isconst=0;
            current.wasconst=0;
            regs[i].wasconst=0;
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,rs1[i]);
            alloc_reg(&current,i,rs2[i]);
            if(!((current.is32>>rs1[i])&(current.is32>>rs2[i])&1))
            {
              alloc_reg64(&current,i,rs1[i]);
              alloc_reg64(&current,i,rs2[i]);
            }
          }
          else
          if((opcode[i]&0x3E)==0x16) // BLEZL/BGTZL
          {
            current.isconst=0;
            current.wasconst=0;
            regs[i].wasconst=0;
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,rs1[i]);
            if(!(current.is32>>rs1[i]&1))
            {
              alloc_reg64(&current,i,rs1[i]);
            }
          }
          ds=1;
          //current.isconst=0;
          break;
        case SJUMP:
          //current.isconst=0;
          //current.wasconst=0;
          //regs[i].wasconst=0;
          clear_const(&current,rs1[i]);
          clear_const(&current,rt1[i]);
          //if((opcode2[i]&0x1E)==0x0) // BLTZ/BGEZ
          if((opcode2[i]&0x0E)==0x0) // BLTZ/BGEZ
          {
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,rs1[i]);
            if(!(current.is32>>rs1[i]&1))
            {
              alloc_reg64(&current,i,rs1[i]);
            }
            if (rt1[i]==31) { // BLTZAL/BGEZAL
              alloc_reg(&current,i,31);
              dirty_reg(&current,31);
              //#ifdef REG_PREFETCH
              //alloc_reg(&current,i,PTEMP);
              //#endif
              //current.is32|=1LL<<rt1[i];
            }
            if((rs1[i]&&(rs1[i]==rt1[i+1]||rs1[i]==rt2[i+1])) // The delay slot overwrites the branch condition.
               ||(rt1[i]==31&&(rs1[i+1]==31||rs2[i+1]==31||rt1[i+1]==31||rt2[i+1]==31))) { // DS touches $ra
              // Allocate the branch condition registers instead.
              current.isconst=0;
              current.wasconst=0;
              regs[i].wasconst=0;
              if(rs1[i]) alloc_reg(&current,i,rs1[i]);
              if(!((current.is32>>rs1[i])&1))
              {
                if(rs1[i]) alloc_reg64(&current,i,rs1[i]);
              }
            }
            else
            {
              ooo[i]=1;
              delayslot_alloc(&current,i+1);
            }
          }
          else
          // Don't alloc the delay slot yet because we might not execute it
          if((opcode2[i]&0x1E)==0x2) // BLTZL/BGEZL
          {
            current.isconst=0;
            current.wasconst=0;
            regs[i].wasconst=0;
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,rs1[i]);
            if(!(current.is32>>rs1[i]&1))
            {
              alloc_reg64(&current,i,rs1[i]);
            }
          }
          ds=1;
          //current.isconst=0;
          break;
        case FJUMP:
          current.isconst=0;
          current.wasconst=0;
          regs[i].wasconst=0;
          if(likely[i]==0) // BC1F/BC1T
          {
            // TODO: Theoretically we can run out of registers here on x86.
            // The delay slot can allocate up to six, and we need to check
            // CSREG before executing the delay slot.  Possibly we can drop
            // the cycle count and then reload it after checking that the
            // FPU is in a usable state, or don't do out-of-order execution.
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,FSREG);
            alloc_reg(&current,i,CSREG);
            if(itype[i+1]==FCOMP) {
              // The delay slot overwrites the branch condition.
              // Allocate the branch condition registers instead.
              alloc_cc(&current,i);
              dirty_reg(&current,CCREG);
              alloc_reg(&current,i,CSREG);
              alloc_reg(&current,i,FSREG);
            }
            else {
              ooo[i]=1;
              delayslot_alloc(&current,i+1);
              alloc_reg(&current,i+1,CSREG);
            }
          }
          else
          // Don't alloc the delay slot yet because we might not execute it
          if(likely[i]) // BC1FL/BC1TL
          {
            alloc_cc(&current,i);
            dirty_reg(&current,CCREG);
            alloc_reg(&current,i,CSREG);
            alloc_reg(&current,i,FSREG);
          }
          ds=1;
          current.isconst=0;
          break;
        case IMM16:
          imm16_alloc(&current,i);
          break;
        case LOAD:
        case LOADLR:
          load_alloc(&current,i);
          break;
        case STORE:
        case STORELR:
          store_alloc(&current,i);
          break;
        case ALU:
          alu_alloc(&current,i);
          break;
        case SHIFT:
          shift_alloc(&current,i);
          break;
        case MULTDIV:
          multdiv_alloc(&current,i);
          break;
        case SHIFTIMM:
          shiftimm_alloc(&current,i);
          break;
        case MOV:
          mov_alloc(&current,i);
          break;
        case COP0:
          cop0_alloc(&current,i);
          break;
        case COP1:
        case COP2:
          cop1_alloc(&current,i);
          break;
        case C1LS:
          c1ls_alloc(&current,i);
          break;
        case C2LS:
          c2ls_alloc(&current,i);
          break;
        case C2OP:
          c2op_alloc(&current,i);
          break;
        case FCONV:
          fconv_alloc(&current,i);
          break;
        case FLOAT:
          float_alloc(&current,i);
          break;
        case FCOMP:
          fcomp_alloc(&current,i);
          break;
        case SYSCALL:
        case HLECALL:
        case INTCALL:
          syscall_alloc(&current,i);
          break;
        case SPAN:
          pagespan_alloc(&current,i);
          break;
      }
      
      // Drop the upper half of registers that have become 32-bit
      current.uu|=current.is32&((1LL<<rt1[i])|(1LL<<rt2[i]));
      if(itype[i]!=UJUMP&&itype[i]!=CJUMP&&itype[i]!=SJUMP&&itype[i]!=RJUMP&&itype[i]!=FJUMP) {
        current.uu&=~((1LL<<us1[i])|(1LL<<us2[i]));
        if((~current.uu>>rt1[i])&1) current.uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]));
        current.uu|=1;
      } else {
        current.uu|=current.is32&((1LL<<rt1[i+1])|(1LL<<rt2[i+1]));
        current.uu&=~((1LL<<us1[i+1])|(1LL<<us2[i+1]));
        if((~current.uu>>rt1[i+1])&1) current.uu&=~((1LL<<dep1[i+1])|(1LL<<dep2[i+1]));
        current.uu&=~((1LL<<us1[i])|(1LL<<us2[i]));
        current.uu|=1;
      }

      // Create entry (branch target) regmap
      for(hr=0;hr<HOST_REGS;hr++)
      {
        int r,or,er;
        r=current.regmap[hr];
        if(r>=0) {
          if(r!=regmap_pre[i][hr]) {
            // TODO: delay slot (?)
            or=get_reg(regmap_pre[i],r); // Get old mapping for this register
            if(or<0||(r&63)>=TEMPREG){
              regs[i].regmap_entry[hr]=-1;
            }
            else
            {
              // Just move it to a different register
              regs[i].regmap_entry[hr]=r;
              // If it was dirty before, it's still dirty
              if((regs[i].wasdirty>>or)&1) dirty_reg(&current,r&63);
            }
          }
          else
          {
            // Unneeded
            if(r==0){
              regs[i].regmap_entry[hr]=0;
            }
            else
            if(r<64){
              if((current.u>>r)&1) {
                regs[i].regmap_entry[hr]=-1;
                //regs[i].regmap[hr]=-1;
                current.regmap[hr]=-1;
              }else
                regs[i].regmap_entry[hr]=r;
            }
            else {
              if((current.uu>>(r&63))&1) {
                regs[i].regmap_entry[hr]=-1;
                //regs[i].regmap[hr]=-1;
                current.regmap[hr]=-1;
              }else
                regs[i].regmap_entry[hr]=r;
            }
          }
        } else {
          // Branches expect CCREG to be allocated at the target
          if(regmap_pre[i][hr]==CCREG) 
            regs[i].regmap_entry[hr]=CCREG;
          else
            regs[i].regmap_entry[hr]=-1;
        }
      }
      memcpy(regs[i].regmap,current.regmap,sizeof(current.regmap));
    }
    /* Branch post-alloc */
    if(i>0)
    {
      current.was32=current.is32;
      current.wasdirty=current.dirty;
      switch(itype[i-1]) {
        case UJUMP:
          memcpy(&branch_regs[i-1],&current,sizeof(current));
          branch_regs[i-1].isconst=0;
          branch_regs[i-1].wasconst=0;
          branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1]));
          branch_regs[i-1].uu=branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i-1])|(1LL<<us2[i-1]));
          alloc_cc(&branch_regs[i-1],i-1);
          dirty_reg(&branch_regs[i-1],CCREG);
          if(rt1[i-1]==31) { // JAL
            alloc_reg(&branch_regs[i-1],i-1,31);
            dirty_reg(&branch_regs[i-1],31);
            branch_regs[i-1].is32|=1LL<<31;
          }
          memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
          memcpy(constmap[i],constmap[i-1],sizeof(current.constmap));
          break;
        case RJUMP:
          memcpy(&branch_regs[i-1],&current,sizeof(current));
          branch_regs[i-1].isconst=0;
          branch_regs[i-1].wasconst=0;
          branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1]));
          branch_regs[i-1].uu=branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i-1])|(1LL<<us2[i-1]));
          alloc_cc(&branch_regs[i-1],i-1);
          dirty_reg(&branch_regs[i-1],CCREG);
          alloc_reg(&branch_regs[i-1],i-1,rs1[i-1]);
          if(rt1[i-1]!=0) { // JALR
            alloc_reg(&branch_regs[i-1],i-1,rt1[i-1]);
            dirty_reg(&branch_regs[i-1],rt1[i-1]);
            branch_regs[i-1].is32|=1LL<<rt1[i-1];
          }
          #ifdef USE_MINI_HT
          if(rs1[i-1]==31) { // JALR
            alloc_reg(&branch_regs[i-1],i-1,RHASH);
            #ifndef HOST_IMM_ADDR32
            alloc_reg(&branch_regs[i-1],i-1,RHTBL);
            #endif
          }
          #endif
          memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
          memcpy(constmap[i],constmap[i-1],sizeof(current.constmap));
          break;
        case CJUMP:
          if((opcode[i-1]&0x3E)==4) // BEQ/BNE
          {
            alloc_cc(&current,i-1);
            dirty_reg(&current,CCREG);
            if((rs1[i-1]&&(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]))||
               (rs2[i-1]&&(rs2[i-1]==rt1[i]||rs2[i-1]==rt2[i]))) {
              // The delay slot overwrote one of our conditions
              // Delay slot goes after the test (in order)
              current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i]));
              current.uu=branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i]));
              if((~current.uu>>rt1[i])&1) current.uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]));
              current.u|=1;
              current.uu|=1;
              delayslot_alloc(&current,i);
              current.isconst=0;
            }
            else
            {
              current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i-1])|(1LL<<rs2[i-1]));
              current.uu=branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i-1])|(1LL<<us2[i-1]));
              // Alloc the branch condition registers
              if(rs1[i-1]) alloc_reg(&current,i-1,rs1[i-1]);
              if(rs2[i-1]) alloc_reg(&current,i-1,rs2[i-1]);
              if(!((current.is32>>rs1[i-1])&(current.is32>>rs2[i-1])&1))
              {
                if(rs1[i-1]) alloc_reg64(&current,i-1,rs1[i-1]);
                if(rs2[i-1]) alloc_reg64(&current,i-1,rs2[i-1]);
              }
            }
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].isconst=0;
            branch_regs[i-1].wasconst=0;
            memcpy(&branch_regs[i-1].regmap_entry,&current.regmap,sizeof(current.regmap));
            memcpy(constmap[i],constmap[i-1],sizeof(current.constmap));
          }
          else
          if((opcode[i-1]&0x3E)==6) // BLEZ/BGTZ
          {
            alloc_cc(&current,i-1);
            dirty_reg(&current,CCREG);
            if(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]) {
              // The delay slot overwrote the branch condition
              // Delay slot goes after the test (in order)
              current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i]));
              current.uu=branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i]));
              if((~current.uu>>rt1[i])&1) current.uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]));
              current.u|=1;
              current.uu|=1;
              delayslot_alloc(&current,i);
              current.isconst=0;
            }
            else
            {
              current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]);
              current.uu=branch_unneeded_reg_upper[i-1]&~(1LL<<us1[i-1]);
              // Alloc the branch condition register
              alloc_reg(&current,i-1,rs1[i-1]);
              if(!(current.is32>>rs1[i-1]&1))
              {
                alloc_reg64(&current,i-1,rs1[i-1]);
              }
            }
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].isconst=0;
            branch_regs[i-1].wasconst=0;
            memcpy(&branch_regs[i-1].regmap_entry,&current.regmap,sizeof(current.regmap));
            memcpy(constmap[i],constmap[i-1],sizeof(current.constmap));
          }
          else
          // Alloc the delay slot in case the branch is taken
          if((opcode[i-1]&0x3E)==0x14) // BEQL/BNEL
          {
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            branch_regs[i-1].uu=(branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            if((~branch_regs[i-1].uu>>rt1[i])&1) branch_regs[i-1].uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]))|1;
            alloc_cc(&branch_regs[i-1],i);
            dirty_reg(&branch_regs[i-1],CCREG);
            delayslot_alloc(&branch_regs[i-1],i);
            branch_regs[i-1].isconst=0;
            alloc_reg(&current,i,CCREG); // Not taken path
            dirty_reg(&current,CCREG);
            memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
          }
          else
          if((opcode[i-1]&0x3E)==0x16) // BLEZL/BGTZL
          {
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            branch_regs[i-1].uu=(branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            if((~branch_regs[i-1].uu>>rt1[i])&1) branch_regs[i-1].uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]))|1;
            alloc_cc(&branch_regs[i-1],i);
            dirty_reg(&branch_regs[i-1],CCREG);
            delayslot_alloc(&branch_regs[i-1],i);
            branch_regs[i-1].isconst=0;
            alloc_reg(&current,i,CCREG); // Not taken path
            dirty_reg(&current,CCREG);
            memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
          }
          break;
        case SJUMP:
          //if((opcode2[i-1]&0x1E)==0) // BLTZ/BGEZ
          if((opcode2[i-1]&0x0E)==0) // BLTZ/BGEZ
          {
            alloc_cc(&current,i-1);
            dirty_reg(&current,CCREG);
            if(rs1[i-1]==rt1[i]||rs1[i-1]==rt2[i]) {
              // The delay slot overwrote the branch condition
              // Delay slot goes after the test (in order)
              current.u=branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i]));
              current.uu=branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i]));
              if((~current.uu>>rt1[i])&1) current.uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]));
              current.u|=1;
              current.uu|=1;
              delayslot_alloc(&current,i);
              current.isconst=0;
            }
            else
            {
              current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]);
              current.uu=branch_unneeded_reg_upper[i-1]&~(1LL<<us1[i-1]);
              // Alloc the branch condition register
              alloc_reg(&current,i-1,rs1[i-1]);
              if(!(current.is32>>rs1[i-1]&1))
              {
                alloc_reg64(&current,i-1,rs1[i-1]);
              }
            }
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].isconst=0;
            branch_regs[i-1].wasconst=0;
            memcpy(&branch_regs[i-1].regmap_entry,&current.regmap,sizeof(current.regmap));
            memcpy(constmap[i],constmap[i-1],sizeof(current.constmap));
          }
          else
          // Alloc the delay slot in case the branch is taken
          if((opcode2[i-1]&0x1E)==2) // BLTZL/BGEZL
          {
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            branch_regs[i-1].uu=(branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            if((~branch_regs[i-1].uu>>rt1[i])&1) branch_regs[i-1].uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]))|1;
            alloc_cc(&branch_regs[i-1],i);
            dirty_reg(&branch_regs[i-1],CCREG);
            delayslot_alloc(&branch_regs[i-1],i);
            branch_regs[i-1].isconst=0;
            alloc_reg(&current,i,CCREG); // Not taken path
            dirty_reg(&current,CCREG);
            memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
          }
          // FIXME: BLTZAL/BGEZAL
          if(opcode2[i-1]&0x10) { // BxxZAL
            alloc_reg(&branch_regs[i-1],i-1,31);
            dirty_reg(&branch_regs[i-1],31);
            branch_regs[i-1].is32|=1LL<<31;
          }
          break;
        case FJUMP:
          if(likely[i-1]==0) // BC1F/BC1T
          {
            alloc_cc(&current,i-1);
            dirty_reg(&current,CCREG);
            if(itype[i]==FCOMP) {
              // The delay slot overwrote the branch condition
              // Delay slot goes after the test (in order)
              delayslot_alloc(&current,i);
              current.isconst=0;
            }
            else
            {
              current.u=branch_unneeded_reg[i-1]&~(1LL<<rs1[i-1]);
              current.uu=branch_unneeded_reg_upper[i-1]&~(1LL<<us1[i-1]);
              // Alloc the branch condition register
              alloc_reg(&current,i-1,FSREG);
            }
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            memcpy(&branch_regs[i-1].regmap_entry,&current.regmap,sizeof(current.regmap));
          }
          else // BC1FL/BC1TL
          {
            // Alloc the delay slot in case the branch is taken
            memcpy(&branch_regs[i-1],&current,sizeof(current));
            branch_regs[i-1].u=(branch_unneeded_reg[i-1]&~((1LL<<rs1[i])|(1LL<<rs2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            branch_regs[i-1].uu=(branch_unneeded_reg_upper[i-1]&~((1LL<<us1[i])|(1LL<<us2[i])|(1LL<<rt1[i])|(1LL<<rt2[i])))|1;
            if((~branch_regs[i-1].uu>>rt1[i])&1) branch_regs[i-1].uu&=~((1LL<<dep1[i])|(1LL<<dep2[i]))|1;
            alloc_cc(&branch_regs[i-1],i);
            dirty_reg(&branch_regs[i-1],CCREG);
            delayslot_alloc(&branch_regs[i-1],i);
            branch_regs[i-1].isconst=0;
            alloc_reg(&current,i,CCREG); // Not taken path
            dirty_reg(&current,CCREG);
            memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
          }
          break;
      }

      if(itype[i-1]==UJUMP||itype[i-1]==RJUMP||(source[i-1]>>16)==0x1000)
      {
        if(rt1[i-1]==31) // JAL/JALR
        {
          // Subroutine call will return here, don't alloc any registers
          current.is32=1;
          current.dirty=0;
          clear_all_regs(current.regmap);
          alloc_reg(&current,i,CCREG);
          dirty_reg(&current,CCREG);
        }
        else if(i+1<slen)
        {
          // Internal branch will jump here, match registers to caller
          current.is32=0x3FFFFFFFFLL;
          current.dirty=0;
          clear_all_regs(current.regmap);
          alloc_reg(&current,i,CCREG);
          dirty_reg(&current,CCREG);
          for(j=i-1;j>=0;j--)
          {
            if(ba[j]==start+i*4+4) {
              memcpy(current.regmap,branch_regs[j].regmap,sizeof(current.regmap));
              current.is32=branch_regs[j].is32;
              current.dirty=branch_regs[j].dirty;
              break;
            }
          }
          while(j>=0) {
            if(ba[j]==start+i*4+4) {
              for(hr=0;hr<HOST_REGS;hr++) {
                if(current.regmap[hr]!=branch_regs[j].regmap[hr]) {
                  current.regmap[hr]=-1;
                }
                current.is32&=branch_regs[j].is32;
                current.dirty&=branch_regs[j].dirty;
              }
            }
            j--;
          }
        }
      }
    }

    // Count cycles in between branches
    ccadj[i]=cc;
    if(i>0&&(itype[i-1]==RJUMP||itype[i-1]==UJUMP||itype[i-1]==CJUMP||itype[i-1]==SJUMP||itype[i-1]==FJUMP||itype[i]==SYSCALL||itype[i]==HLECALL))
    {
      cc=0;
    }
#ifdef PCSX
    else if(/*itype[i]==LOAD||*/itype[i]==STORE||itype[i]==C1LS) // load causes weird timing issues
    {
      cc+=2; // 2 cycle penalty (after CLOCK_DIVIDER)
    }
    else if(itype[i]==C2LS)
    {
      cc+=4;
    }
#endif
    else
    {
      cc++;
    }

    flush_dirty_uppers(&current);
    if(!is_ds[i]) {
      regs[i].is32=current.is32;
      regs[i].dirty=current.dirty;
      regs[i].isconst=current.isconst;
      memcpy(constmap[i],current.constmap,sizeof(current.constmap));
    }
    for(hr=0;hr<HOST_REGS;hr++) {
      if(hr!=EXCLUDE_REG&&regs[i].regmap[hr]>=0) {
        if(regmap_pre[i][hr]!=regs[i].regmap[hr]) {
          regs[i].wasconst&=~(1<<hr);
        }
      }
    }
    if(current.regmap[HOST_BTREG]==BTREG) current.regmap[HOST_BTREG]=-1;
  }
  
  /* Pass 4 - Cull unused host registers */
  
  uint64_t nr=0;
  
  for (i=slen-1;i>=0;i--)
  {
    int hr;
    if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      if(ba[i]<start || ba[i]>=(start+slen*4))
      {
        // Branch out of this block, don't need anything
        nr=0;
      }
      else
      {
        // Internal branch
        // Need whatever matches the target
        nr=0;
        int t=(ba[i]-start)>>2;
        for(hr=0;hr<HOST_REGS;hr++)
        {
          if(regs[i].regmap_entry[hr]>=0) {
            if(regs[i].regmap_entry[hr]==regs[t].regmap_entry[hr]) nr|=1<<hr;
          }
        }
      }
      // Conditional branch may need registers for following instructions
      if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000)
      {
        if(i<slen-2) {
          nr|=needed_reg[i+2];
          for(hr=0;hr<HOST_REGS;hr++)
          {
            if(regmap_pre[i+2][hr]>=0&&get_reg(regs[i+2].regmap_entry,regmap_pre[i+2][hr])<0) nr&=~(1<<hr);
            //if((regmap_entry[i+2][hr])>=0) if(!((nr>>hr)&1)) printf("%x-bogus(%d=%d)\n",start+i*4,hr,regmap_entry[i+2][hr]);
          }
        }
      }
      // Don't need stuff which is overwritten
      //if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr);
      //if(regs[i].regmap[hr]<0) nr&=~(1<<hr);
      // Merge in delay slot
      for(hr=0;hr<HOST_REGS;hr++)
      {
        if(!likely[i]) {
          // These are overwritten unless the branch is "likely"
          // and the delay slot is nullified if not taken
          if(rt1[i+1]&&rt1[i+1]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr);
          if(rt2[i+1]&&rt2[i+1]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr);
        }
        if(us1[i+1]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
        if(us2[i+1]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
        if(rs1[i+1]==regmap_pre[i][hr]) nr|=1<<hr;
        if(rs2[i+1]==regmap_pre[i][hr]) nr|=1<<hr;
        if(us1[i+1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
        if(us2[i+1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
        if(rs1[i+1]==regs[i].regmap_entry[hr]) nr|=1<<hr;
        if(rs2[i+1]==regs[i].regmap_entry[hr]) nr|=1<<hr;
        if(dep1[i+1]&&!((unneeded_reg_upper[i]>>dep1[i+1])&1)) {
          if(dep1[i+1]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
          if(dep2[i+1]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
        }
        if(dep2[i+1]&&!((unneeded_reg_upper[i]>>dep2[i+1])&1)) {
          if(dep1[i+1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
          if(dep2[i+1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
        }
        if(itype[i+1]==STORE || itype[i+1]==STORELR || (opcode[i+1]&0x3b)==0x39 || (opcode[i+1]&0x3b)==0x3a) {
          if(regmap_pre[i][hr]==INVCP) nr|=1<<hr;
          if(regs[i].regmap_entry[hr]==INVCP) nr|=1<<hr;
        }
      }
    }
    else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL)
    {
      // SYSCALL instruction (software interrupt)
      nr=0;
    }
    else if(itype[i]==COP0 && (source[i]&0x3f)==0x18)
    {
      // ERET instruction (return from interrupt)
      nr=0;
    }
    else // Non-branch
    {
      if(i<slen-1) {
        for(hr=0;hr<HOST_REGS;hr++) {
          if(regmap_pre[i+1][hr]>=0&&get_reg(regs[i+1].regmap_entry,regmap_pre[i+1][hr])<0) nr&=~(1<<hr);
          if(regs[i].regmap[hr]!=regmap_pre[i+1][hr]) nr&=~(1<<hr);
          if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr);
          if(regs[i].regmap[hr]<0) nr&=~(1<<hr);
        }
      }
    }
    for(hr=0;hr<HOST_REGS;hr++)
    {
      // Overwritten registers are not needed
      if(rt1[i]&&rt1[i]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr);
      if(rt2[i]&&rt2[i]==(regs[i].regmap[hr]&63)) nr&=~(1<<hr);
      if(FTEMP==(regs[i].regmap[hr]&63)) nr&=~(1<<hr);
      // Source registers are needed
      if(us1[i]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
      if(us2[i]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
      if(rs1[i]==regmap_pre[i][hr]) nr|=1<<hr;
      if(rs2[i]==regmap_pre[i][hr]) nr|=1<<hr;
      if(us1[i]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
      if(us2[i]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
      if(rs1[i]==regs[i].regmap_entry[hr]) nr|=1<<hr;
      if(rs2[i]==regs[i].regmap_entry[hr]) nr|=1<<hr;
      if(dep1[i]&&!((unneeded_reg_upper[i]>>dep1[i])&1)) {
        if(dep1[i]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
        if(dep1[i]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
      }
      if(dep2[i]&&!((unneeded_reg_upper[i]>>dep2[i])&1)) {
        if(dep2[i]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
        if(dep2[i]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
      }
      if(itype[i]==STORE || itype[i]==STORELR || (opcode[i]&0x3b)==0x39 || (opcode[i]&0x3b)==0x3a) {
        if(regmap_pre[i][hr]==INVCP) nr|=1<<hr;
        if(regs[i].regmap_entry[hr]==INVCP) nr|=1<<hr;
      }
      // Don't store a register immediately after writing it,
      // may prevent dual-issue.
      // But do so if this is a branch target, otherwise we
      // might have to load the register before the branch.
      if(i>0&&!bt[i]&&((regs[i].wasdirty>>hr)&1)) {
        if((regmap_pre[i][hr]>0&&regmap_pre[i][hr]<64&&!((unneeded_reg[i]>>regmap_pre[i][hr])&1)) ||
           (regmap_pre[i][hr]>64&&!((unneeded_reg_upper[i]>>(regmap_pre[i][hr]&63))&1)) ) {
          if(rt1[i-1]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
          if(rt2[i-1]==(regmap_pre[i][hr]&63)) nr|=1<<hr;
        }
        if((regs[i].regmap_entry[hr]>0&&regs[i].regmap_entry[hr]<64&&!((unneeded_reg[i]>>regs[i].regmap_entry[hr])&1)) ||
           (regs[i].regmap_entry[hr]>64&&!((unneeded_reg_upper[i]>>(regs[i].regmap_entry[hr]&63))&1)) ) {
          if(rt1[i-1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
          if(rt2[i-1]==(regs[i].regmap_entry[hr]&63)) nr|=1<<hr;
        }
      }
    }
    // Cycle count is needed at branches.  Assume it is needed at the target too.
    if(i==0||bt[i]||itype[i]==CJUMP||itype[i]==FJUMP||itype[i]==SPAN) {
      if(regmap_pre[i][HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG;
      if(regs[i].regmap_entry[HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG;
    }
    // Save it
    needed_reg[i]=nr;
    
    // Deallocate unneeded registers
    for(hr=0;hr<HOST_REGS;hr++)
    {
      if(!((nr>>hr)&1)) {
        if(regs[i].regmap_entry[hr]!=CCREG) regs[i].regmap_entry[hr]=-1;
        if((regs[i].regmap[hr]&63)!=rs1[i] && (regs[i].regmap[hr]&63)!=rs2[i] &&
           (regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] &&
           (regs[i].regmap[hr]&63)!=PTEMP && (regs[i].regmap[hr]&63)!=CCREG)
        {
          if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000)
          {
            if(likely[i]) {
              regs[i].regmap[hr]=-1;
              regs[i].isconst&=~(1<<hr);
              if(i<slen-2) regmap_pre[i+2][hr]=-1;
            }
          }
        }
        if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
        {
          int d1=0,d2=0,map=0,temp=0;
          if(get_reg(regs[i].regmap,rt1[i+1]|64)>=0||get_reg(branch_regs[i].regmap,rt1[i+1]|64)>=0)
          {
            d1=dep1[i+1];
            d2=dep2[i+1];
          }
          if(using_tlb) {
            if(itype[i+1]==LOAD || itype[i+1]==LOADLR ||
               itype[i+1]==STORE || itype[i+1]==STORELR ||
               itype[i+1]==C1LS || itype[i+1]==C2LS)
            map=TLREG;
          } else
          if(itype[i+1]==STORE || itype[i+1]==STORELR ||
             (opcode[i+1]&0x3b)==0x39 || (opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1 || SWC2/SDC2
            map=INVCP;
          }
          if(itype[i+1]==LOADLR || itype[i+1]==STORELR ||
             itype[i+1]==C1LS || itype[i+1]==C2LS)
            temp=FTEMP;
          if((regs[i].regmap[hr]&63)!=rs1[i] && (regs[i].regmap[hr]&63)!=rs2[i] &&
             (regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] &&
             (regs[i].regmap[hr]&63)!=rt1[i+1] && (regs[i].regmap[hr]&63)!=rt2[i+1] &&
             (regs[i].regmap[hr]^64)!=us1[i+1] && (regs[i].regmap[hr]^64)!=us2[i+1] &&
             (regs[i].regmap[hr]^64)!=d1 && (regs[i].regmap[hr]^64)!=d2 &&
             regs[i].regmap[hr]!=rs1[i+1] && regs[i].regmap[hr]!=rs2[i+1] &&
             (regs[i].regmap[hr]&63)!=temp && regs[i].regmap[hr]!=PTEMP &&
             regs[i].regmap[hr]!=RHASH && regs[i].regmap[hr]!=RHTBL &&
             regs[i].regmap[hr]!=RTEMP && regs[i].regmap[hr]!=CCREG &&
             regs[i].regmap[hr]!=map )
          {
            regs[i].regmap[hr]=-1;
            regs[i].isconst&=~(1<<hr);
            if((branch_regs[i].regmap[hr]&63)!=rs1[i] && (branch_regs[i].regmap[hr]&63)!=rs2[i] &&
               (branch_regs[i].regmap[hr]&63)!=rt1[i] && (branch_regs[i].regmap[hr]&63)!=rt2[i] &&
               (branch_regs[i].regmap[hr]&63)!=rt1[i+1] && (branch_regs[i].regmap[hr]&63)!=rt2[i+1] &&
               (branch_regs[i].regmap[hr]^64)!=us1[i+1] && (branch_regs[i].regmap[hr]^64)!=us2[i+1] &&
               (branch_regs[i].regmap[hr]^64)!=d1 && (branch_regs[i].regmap[hr]^64)!=d2 &&
               branch_regs[i].regmap[hr]!=rs1[i+1] && branch_regs[i].regmap[hr]!=rs2[i+1] &&
               (branch_regs[i].regmap[hr]&63)!=temp && branch_regs[i].regmap[hr]!=PTEMP &&
               branch_regs[i].regmap[hr]!=RHASH && branch_regs[i].regmap[hr]!=RHTBL &&
               branch_regs[i].regmap[hr]!=RTEMP && branch_regs[i].regmap[hr]!=CCREG &&
               branch_regs[i].regmap[hr]!=map)
            {
              branch_regs[i].regmap[hr]=-1;
              branch_regs[i].regmap_entry[hr]=-1;
              if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000)
              {
                if(!likely[i]&&i<slen-2) {
                  regmap_pre[i+2][hr]=-1;
                }
              }
            }
          }
        }
        else
        {
          // Non-branch
          if(i>0)
          {
            int d1=0,d2=0,map=-1,temp=-1;
            if(get_reg(regs[i].regmap,rt1[i]|64)>=0)
            {
              d1=dep1[i];
              d2=dep2[i];
            }
            if(using_tlb) {
              if(itype[i]==LOAD || itype[i]==LOADLR ||
                 itype[i]==STORE || itype[i]==STORELR ||
                 itype[i]==C1LS || itype[i]==C2LS)
              map=TLREG;
            } else if(itype[i]==STORE || itype[i]==STORELR ||
                      (opcode[i]&0x3b)==0x39 || (opcode[i]&0x3b)==0x3a) { // SWC1/SDC1 || SWC2/SDC2
              map=INVCP;
            }
            if(itype[i]==LOADLR || itype[i]==STORELR ||
               itype[i]==C1LS || itype[i]==C2LS)
              temp=FTEMP;
            if((regs[i].regmap[hr]&63)!=rt1[i] && (regs[i].regmap[hr]&63)!=rt2[i] &&
               (regs[i].regmap[hr]^64)!=us1[i] && (regs[i].regmap[hr]^64)!=us2[i] &&
               (regs[i].regmap[hr]^64)!=d1 && (regs[i].regmap[hr]^64)!=d2 &&
               regs[i].regmap[hr]!=rs1[i] && regs[i].regmap[hr]!=rs2[i] &&
               (regs[i].regmap[hr]&63)!=temp && regs[i].regmap[hr]!=map &&
               (itype[i]!=SPAN||regs[i].regmap[hr]!=CCREG))
            {
              if(i<slen-1&&!is_ds[i]) {
                if(regmap_pre[i+1][hr]!=-1 || regs[i].regmap[hr]!=-1)
                if(regmap_pre[i+1][hr]!=regs[i].regmap[hr])
                if(regs[i].regmap[hr]<64||!((regs[i].was32>>(regs[i].regmap[hr]&63))&1))
                {
                  printf("fail: %x (%d %d!=%d)\n",start+i*4,hr,regmap_pre[i+1][hr],regs[i].regmap[hr]);
                  assert(regmap_pre[i+1][hr]==regs[i].regmap[hr]);
                }
                regmap_pre[i+1][hr]=-1;
                if(regs[i+1].regmap_entry[hr]==CCREG) regs[i+1].regmap_entry[hr]=-1;
              }
              regs[i].regmap[hr]=-1;
              regs[i].isconst&=~(1<<hr);
            }
          }
        }
      }
    }
  }
  
  /* Pass 5 - Pre-allocate registers */
  
  // If a register is allocated during a loop, try to allocate it for the
  // entire loop, if possible.  This avoids loading/storing registers
  // inside of the loop.

  signed char f_regmap[HOST_REGS];
  clear_all_regs(f_regmap);
  for(i=0;i<slen-1;i++)
  {
    if(itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      if(ba[i]>=start && ba[i]<(start+i*4)) 
      if(itype[i+1]==NOP||itype[i+1]==MOV||itype[i+1]==ALU
      ||itype[i+1]==SHIFTIMM||itype[i+1]==IMM16||itype[i+1]==LOAD
      ||itype[i+1]==STORE||itype[i+1]==STORELR||itype[i+1]==C1LS
      ||itype[i+1]==SHIFT||itype[i+1]==COP1||itype[i+1]==FLOAT
      ||itype[i+1]==FCOMP||itype[i+1]==FCONV
      ||itype[i+1]==COP2||itype[i+1]==C2LS||itype[i+1]==C2OP)
      {
        int t=(ba[i]-start)>>2;
        if(t>0&&(itype[t-1]!=UJUMP&&itype[t-1]!=RJUMP&&itype[t-1]!=CJUMP&&itype[t-1]!=SJUMP&&itype[t-1]!=FJUMP)) // loop_preload can't handle jumps into delay slots
        if(t<2||(itype[t-2]!=UJUMP)) // call/ret assumes no registers allocated
        for(hr=0;hr<HOST_REGS;hr++)
        {
          if(regs[i].regmap[hr]>64) {
            if(!((regs[i].dirty>>hr)&1))
              f_regmap[hr]=regs[i].regmap[hr];
            else f_regmap[hr]=-1;
          }
          else if(regs[i].regmap[hr]>=0) {
            if(f_regmap[hr]!=regs[i].regmap[hr]) {
              // dealloc old register
              int n;
              for(n=0;n<HOST_REGS;n++)
              {
                if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;}
              }
              // and alloc new one
              f_regmap[hr]=regs[i].regmap[hr];
            }
          }
          if(branch_regs[i].regmap[hr]>64) {
            if(!((branch_regs[i].dirty>>hr)&1))
              f_regmap[hr]=branch_regs[i].regmap[hr];
            else f_regmap[hr]=-1;
          }
          else if(branch_regs[i].regmap[hr]>=0) {
            if(f_regmap[hr]!=branch_regs[i].regmap[hr]) {
              // dealloc old register
              int n;
              for(n=0;n<HOST_REGS;n++)
              {
                if(f_regmap[n]==branch_regs[i].regmap[hr]) {f_regmap[n]=-1;}
              }
              // and alloc new one
              f_regmap[hr]=branch_regs[i].regmap[hr];
            }
          }
          if(ooo[i]) {
            if(count_free_regs(regs[i].regmap)<=minimum_free_regs[i+1]) 
              f_regmap[hr]=branch_regs[i].regmap[hr];
          }else{
            if(count_free_regs(branch_regs[i].regmap)<=minimum_free_regs[i+1]) 
              f_regmap[hr]=branch_regs[i].regmap[hr];
          }
          // Avoid dirty->clean transition
          #ifdef DESTRUCTIVE_WRITEBACK
          if(t>0) if(get_reg(regmap_pre[t],f_regmap[hr])>=0) if((regs[t].wasdirty>>get_reg(regmap_pre[t],f_regmap[hr]))&1) f_regmap[hr]=-1;
          #endif
          // This check is only strictly required in the DESTRUCTIVE_WRITEBACK
          // case above, however it's always a good idea.  We can't hoist the
          // load if the register was already allocated, so there's no point
          // wasting time analyzing most of these cases.  It only "succeeds"
          // when the mapping was different and the load can be replaced with
          // a mov, which is of negligible benefit.  So such cases are
          // skipped below.
          if(f_regmap[hr]>0) {
            if(regs[t].regmap_entry[hr]<0&&get_reg(regmap_pre[t],f_regmap[hr])<0) {
              int r=f_regmap[hr];
              for(j=t;j<=i;j++)
              {
                //printf("Test %x -> %x, %x %d/%d\n",start+i*4,ba[i],start+j*4,hr,r);
                if(r<34&&((unneeded_reg[j]>>r)&1)) break;
                if(r>63&&((unneeded_reg_upper[j]>>(r&63))&1)) break;
                if(r>63) {
                  // NB This can exclude the case where the upper-half
                  // register is lower numbered than the lower-half
                  // register.  Not sure if it's worth fixing...
                  if(get_reg(regs[j].regmap,r&63)<0) break;
                  if(get_reg(regs[j].regmap_entry,r&63)<0) break;
                  if(regs[j].is32&(1LL<<(r&63))) break;
                }
                if(regs[j].regmap[hr]==f_regmap[hr]&&(f_regmap[hr]&63)<TEMPREG) {
                  //printf("Hit %x -> %x, %x %d/%d\n",start+i*4,ba[i],start+j*4,hr,r);
                  int k;
                  if(regs[i].regmap[hr]==-1&&branch_regs[i].regmap[hr]==-1) {
                    if(get_reg(regs[i+2].regmap,f_regmap[hr])>=0) break;
                    if(r>63) {
                      if(get_reg(regs[i].regmap,r&63)<0) break;
                      if(get_reg(branch_regs[i].regmap,r&63)<0) break;
                    }
                    k=i;
                    while(k>1&&regs[k-1].regmap[hr]==-1) {
                      if(count_free_regs(regs[k-1].regmap)<=minimum_free_regs[k-1]) {
                        //printf("no free regs for store %x\n",start+(k-1)*4);
                        break;
                      }
                      if(get_reg(regs[k-1].regmap,f_regmap[hr])>=0) {
                        //printf("no-match due to different register\n");
                        break;
                      }
                      if(itype[k-2]==UJUMP||itype[k-2]==RJUMP||itype[k-2]==CJUMP||itype[k-2]==SJUMP||itype[k-2]==FJUMP) {
                        //printf("no-match due to branch\n");
                        break;
                      }
                      // call/ret fast path assumes no registers allocated
                      if(k>2&&(itype[k-3]==UJUMP||itype[k-3]==RJUMP)) {
                        break;
                      }
                      if(r>63) {
                        // NB This can exclude the case where the upper-half
                        // register is lower numbered than the lower-half
                        // register.  Not sure if it's worth fixing...
                        if(get_reg(regs[k-1].regmap,r&63)<0) break;
                        if(regs[k-1].is32&(1LL<<(r&63))) break;
                      }
                      k--;
                    }
                    if(i<slen-1) {
                      if((regs[k].is32&(1LL<<f_regmap[hr]))!=
                        (regs[i+2].was32&(1LL<<f_regmap[hr]))) {
                        //printf("bad match after branch\n");
                        break;
                      }
                    }
                    if(regs[k-1].regmap[hr]==f_regmap[hr]&&regmap_pre[k][hr]==f_regmap[hr]) {
                      //printf("Extend r%d, %x ->\n",hr,start+k*4);
                      while(k<i) {
                        regs[k].regmap_entry[hr]=f_regmap[hr];
                        regs[k].regmap[hr]=f_regmap[hr];
                        regmap_pre[k+1][hr]=f_regmap[hr];
                        regs[k].wasdirty&=~(1<<hr);
                        regs[k].dirty&=~(1<<hr);
                        regs[k].wasdirty|=(1<<hr)&regs[k-1].dirty;
                        regs[k].dirty|=(1<<hr)&regs[k].wasdirty;
                        regs[k].wasconst&=~(1<<hr);
                        regs[k].isconst&=~(1<<hr);
                        k++;
                      }
                    }
                    else {
                      //printf("Fail Extend r%d, %x ->\n",hr,start+k*4);
                      break;
                    }
                    assert(regs[i-1].regmap[hr]==f_regmap[hr]);
                    if(regs[i-1].regmap[hr]==f_regmap[hr]&&regmap_pre[i][hr]==f_regmap[hr]) {
                      //printf("OK fill %x (r%d)\n",start+i*4,hr);
                      regs[i].regmap_entry[hr]=f_regmap[hr];
                      regs[i].regmap[hr]=f_regmap[hr];
                      regs[i].wasdirty&=~(1<<hr);
                      regs[i].dirty&=~(1<<hr);
                      regs[i].wasdirty|=(1<<hr)&regs[i-1].dirty;
                      regs[i].dirty|=(1<<hr)&regs[i-1].dirty;
                      regs[i].wasconst&=~(1<<hr);
                      regs[i].isconst&=~(1<<hr);
                      branch_regs[i].regmap_entry[hr]=f_regmap[hr];
                      branch_regs[i].wasdirty&=~(1<<hr);
                      branch_regs[i].wasdirty|=(1<<hr)&regs[i].dirty;
                      branch_regs[i].regmap[hr]=f_regmap[hr];
                      branch_regs[i].dirty&=~(1<<hr);
                      branch_regs[i].dirty|=(1<<hr)&regs[i].dirty;
                      branch_regs[i].wasconst&=~(1<<hr);
                      branch_regs[i].isconst&=~(1<<hr);
                      if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000) {
                        regmap_pre[i+2][hr]=f_regmap[hr];
                        regs[i+2].wasdirty&=~(1<<hr);
                        regs[i+2].wasdirty|=(1<<hr)&regs[i].dirty;
                        assert((branch_regs[i].is32&(1LL<<f_regmap[hr]))==
                          (regs[i+2].was32&(1LL<<f_regmap[hr])));
                      }
                    }
                  }
                  for(k=t;k<j;k++) {
                    // Alloc register clean at beginning of loop,
                    // but may dirty it in pass 6
                    regs[k].regmap_entry[hr]=f_regmap[hr];
                    regs[k].regmap[hr]=f_regmap[hr];
                    regs[k].dirty&=~(1<<hr);
                    regs[k].wasconst&=~(1<<hr);
                    regs[k].isconst&=~(1<<hr);
                    if(itype[k]==UJUMP||itype[k]==RJUMP||itype[k]==CJUMP||itype[k]==SJUMP||itype[k]==FJUMP) {
                      branch_regs[k].regmap_entry[hr]=f_regmap[hr];
                      branch_regs[k].regmap[hr]=f_regmap[hr];
                      branch_regs[k].dirty&=~(1<<hr);
                      branch_regs[k].wasconst&=~(1<<hr);
                      branch_regs[k].isconst&=~(1<<hr);
                      if(itype[k]!=RJUMP&&itype[k]!=UJUMP&&(source[k]>>16)!=0x1000) {
                        regmap_pre[k+2][hr]=f_regmap[hr];
                        regs[k+2].wasdirty&=~(1<<hr);
                        assert((branch_regs[k].is32&(1LL<<f_regmap[hr]))==
                          (regs[k+2].was32&(1LL<<f_regmap[hr])));
                      }
                    }
                    else
                    {
                      regmap_pre[k+1][hr]=f_regmap[hr];
                      regs[k+1].wasdirty&=~(1<<hr);
                    }
                  }
                  if(regs[j].regmap[hr]==f_regmap[hr])
                    regs[j].regmap_entry[hr]=f_regmap[hr];
                  break;
                }
                if(j==i) break;
                if(regs[j].regmap[hr]>=0)
                  break;
                if(get_reg(regs[j].regmap,f_regmap[hr])>=0) {
                  //printf("no-match due to different register\n");
                  break;
                }
                if((regs[j+1].is32&(1LL<<f_regmap[hr]))!=(regs[j].is32&(1LL<<f_regmap[hr]))) {
                  //printf("32/64 mismatch %x %d\n",start+j*4,hr);
                  break;
                }
                if(itype[j]==UJUMP||itype[j]==RJUMP||(source[j]>>16)==0x1000)
                {
                  // Stop on unconditional branch
                  break;
                }
                if(itype[j]==CJUMP||itype[j]==SJUMP||itype[j]==FJUMP)
                {
                  if(ooo[j]) {
                    if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j+1]) 
                      break;
                  }else{
                    if(count_free_regs(branch_regs[j].regmap)<=minimum_free_regs[j+1]) 
                      break;
                  }
                  if(get_reg(branch_regs[j].regmap,f_regmap[hr])>=0) {
                    //printf("no-match due to different register (branch)\n");
                    break;
                  }
                }
                if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j]) {
                  //printf("No free regs for store %x\n",start+j*4);
                  break;
                }
                if(f_regmap[hr]>=64) {
                  if(regs[j].is32&(1LL<<(f_regmap[hr]&63))) {
                    break;
                  }
                  else
                  {
                    if(get_reg(regs[j].regmap,f_regmap[hr]&63)<0) {
                      break;
                    }
                  }
                }
              }
            }
          }
        }
      }
    }else{
      int count=0;
      for(hr=0;hr<HOST_REGS;hr++)
      {
        if(hr!=EXCLUDE_REG) {
          if(regs[i].regmap[hr]>64) {
            if(!((regs[i].dirty>>hr)&1))
              f_regmap[hr]=regs[i].regmap[hr];
          }
          else if(regs[i].regmap[hr]>=0) {
            if(f_regmap[hr]!=regs[i].regmap[hr]) {
              // dealloc old register
              int n;
              for(n=0;n<HOST_REGS;n++)
              {
                if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;}
              }
              // and alloc new one
              f_regmap[hr]=regs[i].regmap[hr];
            }
          }
          else if(regs[i].regmap[hr]<0) count++;
        }
      }
      // Try to restore cycle count at branch targets
      if(bt[i]) {
        for(j=i;j<slen-1;j++) {
          if(regs[j].regmap[HOST_CCREG]!=-1) break;
          if(count_free_regs(regs[j].regmap)<=minimum_free_regs[j]) {
            //printf("no free regs for store %x\n",start+j*4);
            break;
          }
        }
        if(regs[j].regmap[HOST_CCREG]==CCREG) {
          int k=i;
          //printf("Extend CC, %x -> %x\n",start+k*4,start+j*4);
          while(k<j) {
            regs[k].regmap_entry[HOST_CCREG]=CCREG;
            regs[k].regmap[HOST_CCREG]=CCREG;
            regmap_pre[k+1][HOST_CCREG]=CCREG;
            regs[k+1].wasdirty|=1<<HOST_CCREG;
            regs[k].dirty|=1<<HOST_CCREG;
            regs[k].wasconst&=~(1<<HOST_CCREG);
            regs[k].isconst&=~(1<<HOST_CCREG);
            k++;
          }
          regs[j].regmap_entry[HOST_CCREG]=CCREG;          
        }
        // Work backwards from the branch target
        if(j>i&&f_regmap[HOST_CCREG]==CCREG)
        {
          //printf("Extend backwards\n");
          int k;
          k=i;
          while(regs[k-1].regmap[HOST_CCREG]==-1) {
            if(count_free_regs(regs[k-1].regmap)<=minimum_free_regs[k-1]) {
              //printf("no free regs for store %x\n",start+(k-1)*4);
              break;
            }
            k--;
          }
          if(regs[k-1].regmap[HOST_CCREG]==CCREG) {
            //printf("Extend CC, %x ->\n",start+k*4);
            while(k<=i) {
              regs[k].regmap_entry[HOST_CCREG]=CCREG;
              regs[k].regmap[HOST_CCREG]=CCREG;
              regmap_pre[k+1][HOST_CCREG]=CCREG;
              regs[k+1].wasdirty|=1<<HOST_CCREG;
              regs[k].dirty|=1<<HOST_CCREG;
              regs[k].wasconst&=~(1<<HOST_CCREG);
              regs[k].isconst&=~(1<<HOST_CCREG);
              k++;
            }
          }
          else {
            //printf("Fail Extend CC, %x ->\n",start+k*4);
          }
        }
      }
      if(itype[i]!=STORE&&itype[i]!=STORELR&&itype[i]!=C1LS&&itype[i]!=SHIFT&&
         itype[i]!=NOP&&itype[i]!=MOV&&itype[i]!=ALU&&itype[i]!=SHIFTIMM&&
         itype[i]!=IMM16&&itype[i]!=LOAD&&itype[i]!=COP1&&itype[i]!=FLOAT&&
         itype[i]!=FCONV&&itype[i]!=FCOMP)
      {
        memcpy(f_regmap,regs[i].regmap,sizeof(f_regmap));
      }
    }
  }
  
  // This allocates registers (if possible) one instruction prior
  // to use, which can avoid a load-use penalty on certain CPUs.
  for(i=0;i<slen-1;i++)
  {
    if(!i||(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP&&itype[i-1]!=FJUMP))
    {
      if(!bt[i+1])
      {
        if(itype[i]==ALU||itype[i]==MOV||itype[i]==LOAD||itype[i]==SHIFTIMM||itype[i]==IMM16
           ||((itype[i]==COP1||itype[i]==COP2)&&opcode2[i]<3))
        {
          if(rs1[i+1]) {
            if((hr=get_reg(regs[i+1].regmap,rs1[i+1]))>=0)
            {
              if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
              {
                regs[i].regmap[hr]=regs[i+1].regmap[hr];
                regmap_pre[i+1][hr]=regs[i+1].regmap[hr];
                regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr];
                regs[i].isconst&=~(1<<hr);
                regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                constmap[i][hr]=constmap[i+1][hr];
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
            }
          }
          if(rs2[i+1]) {
            if((hr=get_reg(regs[i+1].regmap,rs2[i+1]))>=0)
            {
              if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
              {
                regs[i].regmap[hr]=regs[i+1].regmap[hr];
                regmap_pre[i+1][hr]=regs[i+1].regmap[hr];
                regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr];
                regs[i].isconst&=~(1<<hr);
                regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                constmap[i][hr]=constmap[i+1][hr];
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
            }
          }
          if(itype[i+1]==LOAD&&rs1[i+1]&&get_reg(regs[i+1].regmap,rs1[i+1])<0) {
            if((hr=get_reg(regs[i+1].regmap,rt1[i+1]))>=0)
            {
              if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
              {
                regs[i].regmap[hr]=rs1[i+1];
                regmap_pre[i+1][hr]=rs1[i+1];
                regs[i+1].regmap_entry[hr]=rs1[i+1];
                regs[i].isconst&=~(1<<hr);
                regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                constmap[i][hr]=constmap[i+1][hr];
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
            }
          }
          if(lt1[i+1]&&get_reg(regs[i+1].regmap,rs1[i+1])<0) {
            if((hr=get_reg(regs[i+1].regmap,rt1[i+1]))>=0)
            {
              if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
              {
                regs[i].regmap[hr]=rs1[i+1];
                regmap_pre[i+1][hr]=rs1[i+1];
                regs[i+1].regmap_entry[hr]=rs1[i+1];
                regs[i].isconst&=~(1<<hr);
                regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                constmap[i][hr]=constmap[i+1][hr];
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
            }
          }
          #ifndef HOST_IMM_ADDR32
          if(itype[i+1]==LOAD||itype[i+1]==LOADLR||itype[i+1]==STORE||itype[i+1]==STORELR||itype[i+1]==C1LS||itype[i+1]==C2LS) {
            hr=get_reg(regs[i+1].regmap,TLREG);
            if(hr>=0) {
              int sr=get_reg(regs[i+1].regmap,rs1[i+1]);
              if(sr>=0&&((regs[i+1].wasconst>>sr)&1)) {
                int nr;
                if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
                {
                  regs[i].regmap[hr]=MGEN1+((i+1)&1);
                  regmap_pre[i+1][hr]=MGEN1+((i+1)&1);
                  regs[i+1].regmap_entry[hr]=MGEN1+((i+1)&1);
                  regs[i].isconst&=~(1<<hr);
                  regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                  constmap[i][hr]=constmap[i+1][hr];
                  regs[i+1].wasdirty&=~(1<<hr);
                  regs[i].dirty&=~(1<<hr);
                }
                else if((nr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1))>=0)
                {
                  // move it to another register
                  regs[i+1].regmap[hr]=-1;
                  regmap_pre[i+2][hr]=-1;
                  regs[i+1].regmap[nr]=TLREG;
                  regmap_pre[i+2][nr]=TLREG;
                  regs[i].regmap[nr]=MGEN1+((i+1)&1);
                  regmap_pre[i+1][nr]=MGEN1+((i+1)&1);
                  regs[i+1].regmap_entry[nr]=MGEN1+((i+1)&1);
                  regs[i].isconst&=~(1<<nr);
                  regs[i+1].isconst&=~(1<<nr);
                  regs[i].dirty&=~(1<<nr);
                  regs[i+1].wasdirty&=~(1<<nr);
                  regs[i+1].dirty&=~(1<<nr);
                  regs[i+2].wasdirty&=~(1<<nr);
                }
              }
            }
          }
          #endif
          if(itype[i+1]==STORE||itype[i+1]==STORELR
             ||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SB/SH/SW/SD/SWC1/SDC1/SWC2/SDC2
            if(get_reg(regs[i+1].regmap,rs1[i+1])<0) {
              hr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1);
              if(hr<0) hr=get_reg(regs[i+1].regmap,-1);
              else {regs[i+1].regmap[hr]=AGEN1+((i+1)&1);regs[i+1].isconst&=~(1<<hr);}
              assert(hr>=0);
              if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
              {
                regs[i].regmap[hr]=rs1[i+1];
                regmap_pre[i+1][hr]=rs1[i+1];
                regs[i+1].regmap_entry[hr]=rs1[i+1];
                regs[i].isconst&=~(1<<hr);
                regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                constmap[i][hr]=constmap[i+1][hr];
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
            }
          }
          if(itype[i+1]==LOADLR||(opcode[i+1]&0x3b)==0x31||(opcode[i+1]&0x3b)==0x32) { // LWC1/LDC1, LWC2/LDC2
            if(get_reg(regs[i+1].regmap,rs1[i+1])<0) {
              int nr;
              hr=get_reg(regs[i+1].regmap,FTEMP);
              assert(hr>=0);
              if(regs[i].regmap[hr]<0&&regs[i+1].regmap_entry[hr]<0)
              {
                regs[i].regmap[hr]=rs1[i+1];
                regmap_pre[i+1][hr]=rs1[i+1];
                regs[i+1].regmap_entry[hr]=rs1[i+1];
                regs[i].isconst&=~(1<<hr);
                regs[i].isconst|=regs[i+1].isconst&(1<<hr);
                constmap[i][hr]=constmap[i+1][hr];
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
              else if((nr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1))>=0)
              {
                // move it to another register
                regs[i+1].regmap[hr]=-1;
                regmap_pre[i+2][hr]=-1;
                regs[i+1].regmap[nr]=FTEMP;
                regmap_pre[i+2][nr]=FTEMP;
                regs[i].regmap[nr]=rs1[i+1];
                regmap_pre[i+1][nr]=rs1[i+1];
                regs[i+1].regmap_entry[nr]=rs1[i+1];
                regs[i].isconst&=~(1<<nr);
                regs[i+1].isconst&=~(1<<nr);
                regs[i].dirty&=~(1<<nr);
                regs[i+1].wasdirty&=~(1<<nr);
                regs[i+1].dirty&=~(1<<nr);
                regs[i+2].wasdirty&=~(1<<nr);
              }
            }
          }
          if(itype[i+1]==LOAD||itype[i+1]==LOADLR||itype[i+1]==STORE||itype[i+1]==STORELR/*||itype[i+1]==C1LS||||itype[i+1]==C2LS*/) {
            if(itype[i+1]==LOAD) 
              hr=get_reg(regs[i+1].regmap,rt1[i+1]);
            if(itype[i+1]==LOADLR||(opcode[i+1]&0x3b)==0x31||(opcode[i+1]&0x3b)==0x32) // LWC1/LDC1, LWC2/LDC2
              hr=get_reg(regs[i+1].regmap,FTEMP);
            if(itype[i+1]==STORE||itype[i+1]==STORELR||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a) { // SWC1/SDC1/SWC2/SDC2
              hr=get_reg(regs[i+1].regmap,AGEN1+((i+1)&1));
              if(hr<0) hr=get_reg(regs[i+1].regmap,-1);
            }
            if(hr>=0&&regs[i].regmap[hr]<0) {
              int rs=get_reg(regs[i+1].regmap,rs1[i+1]);
              if(rs>=0&&((regs[i+1].wasconst>>rs)&1)) {
                regs[i].regmap[hr]=AGEN1+((i+1)&1);
                regmap_pre[i+1][hr]=AGEN1+((i+1)&1);
                regs[i+1].regmap_entry[hr]=AGEN1+((i+1)&1);
                regs[i].isconst&=~(1<<hr);
                regs[i+1].wasdirty&=~(1<<hr);
                regs[i].dirty&=~(1<<hr);
              }
            }
          }
        }
      }
    }
  }
  
  /* Pass 6 - Optimize clean/dirty state */
  clean_registers(0,slen-1,1);
  
  /* Pass 7 - Identify 32-bit registers */
#ifndef FORCE32
  provisional_r32();

  u_int r32=0;
  
  for (i=slen-1;i>=0;i--)
  {
    int hr;
    if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
    {
      if(ba[i]<start || ba[i]>=(start+slen*4))
      {
        // Branch out of this block, don't need anything
        r32=0;
      }
      else
      {
        // Internal branch
        // Need whatever matches the target
        // (and doesn't get overwritten by the delay slot instruction)
        r32=0;
        int t=(ba[i]-start)>>2;
        if(ba[i]>start+i*4) {
          // Forward branch
          if(!(requires_32bit[t]&~regs[i].was32))
            r32|=requires_32bit[t]&(~(1LL<<rt1[i+1]))&(~(1LL<<rt2[i+1]));
        }else{
          // Backward branch
          //if(!(regs[t].was32&~unneeded_reg_upper[t]&~regs[i].was32))
          //  r32|=regs[t].was32&~unneeded_reg_upper[t]&(~(1LL<<rt1[i+1]))&(~(1LL<<rt2[i+1]));
          if(!(pr32[t]&~regs[i].was32))
            r32|=pr32[t]&(~(1LL<<rt1[i+1]))&(~(1LL<<rt2[i+1]));
        }
      }
      // Conditional branch may need registers for following instructions
      if(itype[i]!=RJUMP&&itype[i]!=UJUMP&&(source[i]>>16)!=0x1000)
      {
        if(i<slen-2) {
          r32|=requires_32bit[i+2];
          r32&=regs[i].was32;
          // Mark this address as a branch target since it may be called
          // upon return from interrupt
          bt[i+2]=1;
        }
      }
      // Merge in delay slot
      if(!likely[i]) {
        // These are overwritten unless the branch is "likely"
        // and the delay slot is nullified if not taken
        r32&=~(1LL<<rt1[i+1]);
        r32&=~(1LL<<rt2[i+1]);
      }
      // Assume these are needed (delay slot)
      if(us1[i+1]>0)
      {
        if((regs[i].was32>>us1[i+1])&1) r32|=1LL<<us1[i+1];
      }
      if(us2[i+1]>0)
      {
        if((regs[i].was32>>us2[i+1])&1) r32|=1LL<<us2[i+1];
      }
      if(dep1[i+1]&&!((unneeded_reg_upper[i]>>dep1[i+1])&1))
      {
        if((regs[i].was32>>dep1[i+1])&1) r32|=1LL<<dep1[i+1];
      }
      if(dep2[i+1]&&!((unneeded_reg_upper[i]>>dep2[i+1])&1))
      {
        if((regs[i].was32>>dep2[i+1])&1) r32|=1LL<<dep2[i+1];
      }
    }
    else if(itype[i]==SYSCALL||itype[i]==HLECALL||itype[i]==INTCALL)
    {
      // SYSCALL instruction (software interrupt)
      r32=0;
    }
    else if(itype[i]==COP0 && (source[i]&0x3f)==0x18)
    {
      // ERET instruction (return from interrupt)
      r32=0;
    }
    // Check 32 bits
    r32&=~(1LL<<rt1[i]);
    r32&=~(1LL<<rt2[i]);
    if(us1[i]>0)
    {
      if((regs[i].was32>>us1[i])&1) r32|=1LL<<us1[i];
    }
    if(us2[i]>0)
    {
      if((regs[i].was32>>us2[i])&1) r32|=1LL<<us2[i];
    }
    if(dep1[i]&&!((unneeded_reg_upper[i]>>dep1[i])&1))
    {
      if((regs[i].was32>>dep1[i])&1) r32|=1LL<<dep1[i];
    }
    if(dep2[i]&&!((unneeded_reg_upper[i]>>dep2[i])&1))
    {
      if((regs[i].was32>>dep2[i])&1) r32|=1LL<<dep2[i];
    }
    requires_32bit[i]=r32;
    
    // Dirty registers which are 32-bit, require 32-bit input
    // as they will be written as 32-bit values
    for(hr=0;hr<HOST_REGS;hr++)
    {
      if(regs[i].regmap_entry[hr]>0&&regs[i].regmap_entry[hr]<64) {
        if((regs[i].was32>>regs[i].regmap_entry[hr])&(regs[i].wasdirty>>hr)&1) {
          if(!((unneeded_reg_upper[i]>>regs[i].regmap_entry[hr])&1))
          requires_32bit[i]|=1LL<<regs[i].regmap_entry[hr];
        }
      }
    }
    //requires_32bit[i]=is32[i]&~unneeded_reg_upper[i]; // DEBUG
  }
#endif

  if(itype[slen-1]==SPAN) {
    bt[slen-1]=1; // Mark as a branch target so instruction can restart after exception
  }
  
  /* Debug/disassembly */
  if((void*)assem_debug==(void*)printf) 
  for(i=0;i<slen;i++)
  {
    printf("U:");
    int r;
    for(r=1;r<=CCREG;r++) {
      if((unneeded_reg[i]>>r)&1) {
        if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
#ifndef FORCE32
    printf(" UU:");
    for(r=1;r<=CCREG;r++) {
      if(((unneeded_reg_upper[i]&~unneeded_reg[i])>>r)&1) {
        if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    printf(" 32:");
    for(r=0;r<=CCREG;r++) {
      //if(((is32[i]>>r)&(~unneeded_reg[i]>>r))&1) {
      if((regs[i].was32>>r)&1) {
        if(r==CCREG) printf(" CC");
        else if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
#endif
    printf("\n");
    #if defined(__i386__) || defined(__x86_64__)
    printf("pre: eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",regmap_pre[i][0],regmap_pre[i][1],regmap_pre[i][2],regmap_pre[i][3],regmap_pre[i][5],regmap_pre[i][6],regmap_pre[i][7]);
    #endif
    #ifdef __arm__
    printf("pre: r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d\n",regmap_pre[i][0],regmap_pre[i][1],regmap_pre[i][2],regmap_pre[i][3],regmap_pre[i][4],regmap_pre[i][5],regmap_pre[i][6],regmap_pre[i][7],regmap_pre[i][8],regmap_pre[i][9],regmap_pre[i][10],regmap_pre[i][12]);
    #endif
    printf("needs: ");
    if(needed_reg[i]&1) printf("eax ");
    if((needed_reg[i]>>1)&1) printf("ecx ");
    if((needed_reg[i]>>2)&1) printf("edx ");
    if((needed_reg[i]>>3)&1) printf("ebx ");
    if((needed_reg[i]>>5)&1) printf("ebp ");
    if((needed_reg[i]>>6)&1) printf("esi ");
    if((needed_reg[i]>>7)&1) printf("edi ");
    printf("r:");
    for(r=0;r<=CCREG;r++) {
      //if(((requires_32bit[i]>>r)&(~unneeded_reg[i]>>r))&1) {
      if((requires_32bit[i]>>r)&1) {
        if(r==CCREG) printf(" CC");
        else if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    printf("\n");
    /*printf("pr:");
    for(r=0;r<=CCREG;r++) {
      //if(((requires_32bit[i]>>r)&(~unneeded_reg[i]>>r))&1) {
      if((pr32[i]>>r)&1) {
        if(r==CCREG) printf(" CC");
        else if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    if(pr32[i]!=requires_32bit[i]) printf(" OOPS");
    printf("\n");*/
    #if defined(__i386__) || defined(__x86_64__)
    printf("entry: eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",regs[i].regmap_entry[0],regs[i].regmap_entry[1],regs[i].regmap_entry[2],regs[i].regmap_entry[3],regs[i].regmap_entry[5],regs[i].regmap_entry[6],regs[i].regmap_entry[7]);
    printf("dirty: ");
    if(regs[i].wasdirty&1) printf("eax ");
    if((regs[i].wasdirty>>1)&1) printf("ecx ");
    if((regs[i].wasdirty>>2)&1) printf("edx ");
    if((regs[i].wasdirty>>3)&1) printf("ebx ");
    if((regs[i].wasdirty>>5)&1) printf("ebp ");
    if((regs[i].wasdirty>>6)&1) printf("esi ");
    if((regs[i].wasdirty>>7)&1) printf("edi ");
    #endif
    #ifdef __arm__
    printf("entry: r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d\n",regs[i].regmap_entry[0],regs[i].regmap_entry[1],regs[i].regmap_entry[2],regs[i].regmap_entry[3],regs[i].regmap_entry[4],regs[i].regmap_entry[5],regs[i].regmap_entry[6],regs[i].regmap_entry[7],regs[i].regmap_entry[8],regs[i].regmap_entry[9],regs[i].regmap_entry[10],regs[i].regmap_entry[12]);
    printf("dirty: ");
    if(regs[i].wasdirty&1) printf("r0 ");
    if((regs[i].wasdirty>>1)&1) printf("r1 ");
    if((regs[i].wasdirty>>2)&1) printf("r2 ");
    if((regs[i].wasdirty>>3)&1) printf("r3 ");
    if((regs[i].wasdirty>>4)&1) printf("r4 ");
    if((regs[i].wasdirty>>5)&1) printf("r5 ");
    if((regs[i].wasdirty>>6)&1) printf("r6 ");
    if((regs[i].wasdirty>>7)&1) printf("r7 ");
    if((regs[i].wasdirty>>8)&1) printf("r8 ");
    if((regs[i].wasdirty>>9)&1) printf("r9 ");
    if((regs[i].wasdirty>>10)&1) printf("r10 ");
    if((regs[i].wasdirty>>12)&1) printf("r12 ");
    #endif
    printf("\n");
    disassemble_inst(i);
    //printf ("ccadj[%d] = %d\n",i,ccadj[i]);
    #if defined(__i386__) || defined(__x86_64__)
    printf("eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d dirty: ",regs[i].regmap[0],regs[i].regmap[1],regs[i].regmap[2],regs[i].regmap[3],regs[i].regmap[5],regs[i].regmap[6],regs[i].regmap[7]);
    if(regs[i].dirty&1) printf("eax ");
    if((regs[i].dirty>>1)&1) printf("ecx ");
    if((regs[i].dirty>>2)&1) printf("edx ");
    if((regs[i].dirty>>3)&1) printf("ebx ");
    if((regs[i].dirty>>5)&1) printf("ebp ");
    if((regs[i].dirty>>6)&1) printf("esi ");
    if((regs[i].dirty>>7)&1) printf("edi ");
    #endif
    #ifdef __arm__
    printf("r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d dirty: ",regs[i].regmap[0],regs[i].regmap[1],regs[i].regmap[2],regs[i].regmap[3],regs[i].regmap[4],regs[i].regmap[5],regs[i].regmap[6],regs[i].regmap[7],regs[i].regmap[8],regs[i].regmap[9],regs[i].regmap[10],regs[i].regmap[12]);
    if(regs[i].dirty&1) printf("r0 ");
    if((regs[i].dirty>>1)&1) printf("r1 ");
    if((regs[i].dirty>>2)&1) printf("r2 ");
    if((regs[i].dirty>>3)&1) printf("r3 ");
    if((regs[i].dirty>>4)&1) printf("r4 ");
    if((regs[i].dirty>>5)&1) printf("r5 ");
    if((regs[i].dirty>>6)&1) printf("r6 ");
    if((regs[i].dirty>>7)&1) printf("r7 ");
    if((regs[i].dirty>>8)&1) printf("r8 ");
    if((regs[i].dirty>>9)&1) printf("r9 ");
    if((regs[i].dirty>>10)&1) printf("r10 ");
    if((regs[i].dirty>>12)&1) printf("r12 ");
    #endif
    printf("\n");
    if(regs[i].isconst) {
      printf("constants: ");
      #if defined(__i386__) || defined(__x86_64__)
      if(regs[i].isconst&1) printf("eax=%x ",(int)constmap[i][0]);
      if((regs[i].isconst>>1)&1) printf("ecx=%x ",(int)constmap[i][1]);
      if((regs[i].isconst>>2)&1) printf("edx=%x ",(int)constmap[i][2]);
      if((regs[i].isconst>>3)&1) printf("ebx=%x ",(int)constmap[i][3]);
      if((regs[i].isconst>>5)&1) printf("ebp=%x ",(int)constmap[i][5]);
      if((regs[i].isconst>>6)&1) printf("esi=%x ",(int)constmap[i][6]);
      if((regs[i].isconst>>7)&1) printf("edi=%x ",(int)constmap[i][7]);
      #endif
      #ifdef __arm__
      if(regs[i].isconst&1) printf("r0=%x ",(int)constmap[i][0]);
      if((regs[i].isconst>>1)&1) printf("r1=%x ",(int)constmap[i][1]);
      if((regs[i].isconst>>2)&1) printf("r2=%x ",(int)constmap[i][2]);
      if((regs[i].isconst>>3)&1) printf("r3=%x ",(int)constmap[i][3]);
      if((regs[i].isconst>>4)&1) printf("r4=%x ",(int)constmap[i][4]);
      if((regs[i].isconst>>5)&1) printf("r5=%x ",(int)constmap[i][5]);
      if((regs[i].isconst>>6)&1) printf("r6=%x ",(int)constmap[i][6]);
      if((regs[i].isconst>>7)&1) printf("r7=%x ",(int)constmap[i][7]);
      if((regs[i].isconst>>8)&1) printf("r8=%x ",(int)constmap[i][8]);
      if((regs[i].isconst>>9)&1) printf("r9=%x ",(int)constmap[i][9]);
      if((regs[i].isconst>>10)&1) printf("r10=%x ",(int)constmap[i][10]);
      if((regs[i].isconst>>12)&1) printf("r12=%x ",(int)constmap[i][12]);
      #endif
      printf("\n");
    }
#ifndef FORCE32
    printf(" 32:");
    for(r=0;r<=CCREG;r++) {
      if((regs[i].is32>>r)&1) {
        if(r==CCREG) printf(" CC");
        else if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    printf("\n");
#endif
    /*printf(" p32:");
    for(r=0;r<=CCREG;r++) {
      if((p32[i]>>r)&1) {
        if(r==CCREG) printf(" CC");
        else if(r==HIREG) printf(" HI");
        else if(r==LOREG) printf(" LO");
        else printf(" r%d",r);
      }
    }
    if(p32[i]!=regs[i].is32) printf(" NO MATCH\n");
    else printf("\n");*/
    if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP) {
      #if defined(__i386__) || defined(__x86_64__)
      printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d dirty: ",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
      if(branch_regs[i].dirty&1) printf("eax ");
      if((branch_regs[i].dirty>>1)&1) printf("ecx ");
      if((branch_regs[i].dirty>>2)&1) printf("edx ");
      if((branch_regs[i].dirty>>3)&1) printf("ebx ");
      if((branch_regs[i].dirty>>5)&1) printf("ebp ");
      if((branch_regs[i].dirty>>6)&1) printf("esi ");
      if((branch_regs[i].dirty>>7)&1) printf("edi ");
      #endif
      #ifdef __arm__
      printf("branch(%d): r0=%d r1=%d r2=%d r3=%d r4=%d r5=%d r6=%d r7=%d r8=%d r9=%d r10=%d r12=%d dirty: ",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[4],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7],branch_regs[i].regmap[8],branch_regs[i].regmap[9],branch_regs[i].regmap[10],branch_regs[i].regmap[12]);
      if(branch_regs[i].dirty&1) printf("r0 ");
      if((branch_regs[i].dirty>>1)&1) printf("r1 ");
      if((branch_regs[i].dirty>>2)&1) printf("r2 ");
      if((branch_regs[i].dirty>>3)&1) printf("r3 ");
      if((branch_regs[i].dirty>>4)&1) printf("r4 ");
      if((branch_regs[i].dirty>>5)&1) printf("r5 ");
      if((branch_regs[i].dirty>>6)&1) printf("r6 ");
      if((branch_regs[i].dirty>>7)&1) printf("r7 ");
      if((branch_regs[i].dirty>>8)&1) printf("r8 ");
      if((branch_regs[i].dirty>>9)&1) printf("r9 ");
      if((branch_regs[i].dirty>>10)&1) printf("r10 ");
      if((branch_regs[i].dirty>>12)&1) printf("r12 ");
      #endif
#ifndef FORCE32
      printf(" 32:");
      for(r=0;r<=CCREG;r++) {
        if((branch_regs[i].is32>>r)&1) {
          if(r==CCREG) printf(" CC");
          else if(r==HIREG) printf(" HI");
          else if(r==LOREG) printf(" LO");
          else printf(" r%d",r);
        }
      }
      printf("\n");
#endif
    }
  }

  /* Pass 8 - Assembly */
  linkcount=0;stubcount=0;
  ds=0;is_delayslot=0;
  cop1_usable=0;
  uint64_t is32_pre=0;
  u_int dirty_pre=0;
  u_int beginning=(u_int)out;
  if((u_int)addr&1) {
    ds=1;
    pagespan_ds();
  }
  u_int instr_addr0_override=0;

#ifdef PCSX
  if (start == 0x80030000) {
    // nasty hack for fastbios thing
    instr_addr0_override=(u_int)out;
    emit_movimm(start,0);
    emit_readword((int)&pcaddr,1);
    emit_writeword(0,(int)&pcaddr);
    emit_cmp(0,1);
    emit_jne((int)new_dyna_leave);
  }
#endif
  for(i=0;i<slen;i++)
  {
    //if(ds) printf("ds: ");
    if((void*)assem_debug==(void*)printf) disassemble_inst(i);
    if(ds) {
      ds=0; // Skip delay slot
      if(bt[i]) assem_debug("OOPS - branch into delay slot\n");
      instr_addr[i]=0;
    } else {
      #ifndef DESTRUCTIVE_WRITEBACK
      if(i<2||(itype[i-2]!=UJUMP&&itype[i-2]!=RJUMP&&(source[i-2]>>16)!=0x1000))
      {
        wb_sx(regmap_pre[i],regs[i].regmap_entry,regs[i].wasdirty,is32_pre,regs[i].was32,
              unneeded_reg[i],unneeded_reg_upper[i]);
        wb_valid(regmap_pre[i],regs[i].regmap_entry,dirty_pre,regs[i].wasdirty,is32_pre,
              unneeded_reg[i],unneeded_reg_upper[i]);
      }
      is32_pre=regs[i].is32;
      dirty_pre=regs[i].dirty;
      #endif
      // write back
      if(i<2||(itype[i-2]!=UJUMP&&itype[i-2]!=RJUMP&&(source[i-2]>>16)!=0x1000))
      {
        wb_invalidate(regmap_pre[i],regs[i].regmap_entry,regs[i].wasdirty,regs[i].was32,
                      unneeded_reg[i],unneeded_reg_upper[i]);
        loop_preload(regmap_pre[i],regs[i].regmap_entry);
      }
      // branch target entry point
      instr_addr[i]=(u_int)out;
      assem_debug("<->\n");
      // load regs
      if(regs[i].regmap_entry[HOST_CCREG]==CCREG&&regs[i].regmap[HOST_CCREG]!=CCREG)
        wb_register(CCREG,regs[i].regmap_entry,regs[i].wasdirty,regs[i].was32);
      load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,rs1[i],rs2[i]);
      address_generation(i,&regs[i],regs[i].regmap_entry);
      load_consts(regmap_pre[i],regs[i].regmap,regs[i].was32,i);
      if(itype[i]==RJUMP||itype[i]==UJUMP||itype[i]==CJUMP||itype[i]==SJUMP||itype[i]==FJUMP)
      {
        // Load the delay slot registers if necessary
        if(rs1[i+1]!=rs1[i]&&rs1[i+1]!=rs2[i]&&(rs1[i+1]!=rt1[i]||rt1[i]==0))
          load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,rs1[i+1],rs1[i+1]);
        if(rs2[i+1]!=rs1[i+1]&&rs2[i+1]!=rs1[i]&&rs2[i+1]!=rs2[i]&&(rs2[i+1]!=rt1[i]||rt1[i]==0))
          load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,rs2[i+1],rs2[i+1]);
        if(itype[i+1]==STORE||itype[i+1]==STORELR||(opcode[i+1]&0x3b)==0x39||(opcode[i+1]&0x3b)==0x3a)
          load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,INVCP,INVCP);
      }
      else if(i+1<slen)
      {
        // Preload registers for following instruction
        if(rs1[i+1]!=rs1[i]&&rs1[i+1]!=rs2[i])
          if(rs1[i+1]!=rt1[i]&&rs1[i+1]!=rt2[i])
            load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,rs1[i+1],rs1[i+1]);
        if(rs2[i+1]!=rs1[i+1]&&rs2[i+1]!=rs1[i]&&rs2[i+1]!=rs2[i])
          if(rs2[i+1]!=rt1[i]&&rs2[i+1]!=rt2[i])
            load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,rs2[i+1],rs2[i+1]);
      }
      // TODO: if(is_ooo(i)) address_generation(i+1);
      if(itype[i]==CJUMP||itype[i]==FJUMP)
        load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,CCREG,CCREG);
      if(itype[i]==STORE||itype[i]==STORELR||(opcode[i]&0x3b)==0x39||(opcode[i]&0x3b)==0x3a)
        load_regs(regs[i].regmap_entry,regs[i].regmap,regs[i].was32,INVCP,INVCP);
      if(bt[i]) cop1_usable=0;
      // assemble
      switch(itype[i]) {
        case ALU:
          alu_assemble(i,&regs[i]);break;
        case IMM16:
          imm16_assemble(i,&regs[i]);break;
        case SHIFT:
          shift_assemble(i,&regs[i]);break;
        case SHIFTIMM:
          shiftimm_assemble(i,&regs[i]);break;
        case LOAD:
          load_assemble(i,&regs[i]);break;
        case LOADLR:
          loadlr_assemble(i,&regs[i]);break;
        case STORE:
          store_assemble(i,&regs[i]);break;
        case STORELR:
          storelr_assemble(i,&regs[i]);break;
        case COP0:
          cop0_assemble(i,&regs[i]);break;
        case COP1:
          cop1_assemble(i,&regs[i]);break;
        case C1LS:
          c1ls_assemble(i,&regs[i]);break;
        case COP2:
          cop2_assemble(i,&regs[i]);break;
        case C2LS:
          c2ls_assemble(i,&regs[i]);break;
        case C2OP:
          c2op_assemble(i,&regs[i]);break;
        case FCONV:
          fconv_assemble(i,&regs[i]);break;
        case FLOAT:
          float_assemble(i,&regs[i]);break;
        case FCOMP:
          fcomp_assemble(i,&regs[i]);break;
        case MULTDIV:
          multdiv_assemble(i,&regs[i]);break;
        case MOV:
          mov_assemble(i,&regs[i]);break;
        case SYSCALL:
          syscall_assemble(i,&regs[i]);break;
        case HLECALL:
          hlecall_assemble(i,&regs[i]);break;
        case INTCALL:
          intcall_assemble(i,&regs[i]);break;
        case UJUMP:
          ujump_assemble(i,&regs[i]);ds=1;break;
        case RJUMP:
          rjump_assemble(i,&regs[i]);ds=1;break;
        case CJUMP:
          cjump_assemble(i,&regs[i]);ds=1;break;
        case SJUMP:
          sjump_assemble(i,&regs[i]);ds=1;break;
        case FJUMP:
          fjump_assemble(i,&regs[i]);ds=1;break;
        case SPAN:
          pagespan_assemble(i,&regs[i]);break;
      }
      if(itype[i]==UJUMP||itype[i]==RJUMP||(source[i]>>16)==0x1000)
        literal_pool(1024);
      else
        literal_pool_jumpover(256);
    }
  }
  //assert(itype[i-2]==UJUMP||itype[i-2]==RJUMP||(source[i-2]>>16)==0x1000);
  // If the block did not end with an unconditional branch,
  // add a jump to the next instruction.
  if(i>1) {
    if(itype[i-2]!=UJUMP&&itype[i-2]!=RJUMP&&(source[i-2]>>16)!=0x1000&&itype[i-1]!=SPAN) {
      assert(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP&&itype[i-1]!=FJUMP);
      assert(i==slen);
      if(itype[i-2]!=CJUMP&&itype[i-2]!=SJUMP&&itype[i-2]!=FJUMP) {
        store_regs_bt(regs[i-1].regmap,regs[i-1].is32,regs[i-1].dirty,start+i*4);
        if(regs[i-1].regmap[HOST_CCREG]!=CCREG)
          emit_loadreg(CCREG,HOST_CCREG);
        emit_addimm(HOST_CCREG,CLOCK_DIVIDER*(ccadj[i-1]+1),HOST_CCREG);
      }
      else if(!likely[i-2])
      {
        store_regs_bt(branch_regs[i-2].regmap,branch_regs[i-2].is32,branch_regs[i-2].dirty,start+i*4);
        assert(branch_regs[i-2].regmap[HOST_CCREG]==CCREG);
      }
      else
      {
        store_regs_bt(regs[i-2].regmap,regs[i-2].is32,regs[i-2].dirty,start+i*4);
        assert(regs[i-2].regmap[HOST_CCREG]==CCREG);
      }
      add_to_linker((int)out,start+i*4,0);
      emit_jmp(0);
    }
  }
  else
  {
    assert(i>0);
    assert(itype[i-1]!=UJUMP&&itype[i-1]!=CJUMP&&itype[i-1]!=SJUMP&&itype[i-1]!=RJUMP&&itype[i-1]!=FJUMP);
    store_regs_bt(regs[i-1].regmap,regs[i-1].is32,regs[i-1].dirty,start+i*4);
    if(regs[i-1].regmap[HOST_CCREG]!=CCREG)
      emit_loadreg(CCREG,HOST_CCREG);
    emit_addimm(HOST_CCREG,CLOCK_DIVIDER*(ccadj[i-1]+1),HOST_CCREG);
    add_to_linker((int)out,start+i*4,0);
    emit_jmp(0);
  }

  // TODO: delay slot stubs?
  // Stubs
  for(i=0;i<stubcount;i++)
  {
    switch(stubs[i][0])
    {
      case LOADB_STUB:
      case LOADH_STUB:
      case LOADW_STUB:
      case LOADD_STUB:
      case LOADBU_STUB:
      case LOADHU_STUB:
        do_readstub(i);break;
      case STOREB_STUB:
      case STOREH_STUB:
      case STOREW_STUB:
      case STORED_STUB:
        do_writestub(i);break;
      case CC_STUB:
        do_ccstub(i);break;
      case INVCODE_STUB:
        do_invstub(i);break;
      case FP_STUB:
        do_cop1stub(i);break;
      case STORELR_STUB:
        do_unalignedwritestub(i);break;
    }
  }

  if (instr_addr0_override)
    instr_addr[0] = instr_addr0_override;

  /* Pass 9 - Linker */
  for(i=0;i<linkcount;i++)
  {
    assem_debug("%8x -> %8x\n",link_addr[i][0],link_addr[i][1]);
    literal_pool(64);
    if(!link_addr[i][2])
    {
      void *stub=out;
      void *addr=check_addr(link_addr[i][1]);
      emit_extjump(link_addr[i][0],link_addr[i][1]);
      if(addr) {
        set_jump_target(link_addr[i][0],(int)addr);
        add_link(link_addr[i][1],stub);
      }
      else set_jump_target(link_addr[i][0],(int)stub);
    }
    else
    {
      // Internal branch
      int target=(link_addr[i][1]-start)>>2;
      assert(target>=0&&target<slen);
      assert(instr_addr[target]);
      //#ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
      //set_jump_target_fillslot(link_addr[i][0],instr_addr[target],link_addr[i][2]>>1);
      //#else
      set_jump_target(link_addr[i][0],instr_addr[target]);
      //#endif
    }
  }
  // External Branch Targets (jump_in)
  if(copy+slen*4>(void *)shadow+sizeof(shadow)) copy=shadow;
  for(i=0;i<slen;i++)
  {
    if(bt[i]||i==0)
    {
      if(instr_addr[i]) // TODO - delay slots (=null)
      {
        u_int vaddr=start+i*4;
        u_int page=get_page(vaddr);
        u_int vpage=get_vpage(vaddr);
        literal_pool(256);
        //if(!(is32[i]&(~unneeded_reg_upper[i])&~(1LL<<CCREG)))
#ifndef FORCE32
        if(!requires_32bit[i])
#else
        if(1)
#endif
        {
          assem_debug("%8x (%d) <- %8x\n",instr_addr[i],i,start+i*4);
          assem_debug("jump_in: %x\n",start+i*4);
          ll_add(jump_dirty+vpage,vaddr,(void *)out);
          int entry_point=do_dirty_stub(i);
          ll_add(jump_in+page,vaddr,(void *)entry_point);
          // If there was an existing entry in the hash table,
          // replace it with the new address.
          // Don't add new entries.  We'll insert the
          // ones that actually get used in check_addr().
          int *ht_bin=hash_table[((vaddr>>16)^vaddr)&0xFFFF];
          if(ht_bin[0]==vaddr) {
            ht_bin[1]=entry_point;
          }
          if(ht_bin[2]==vaddr) {
            ht_bin[3]=entry_point;
          }
        }
        else
        {
          u_int r=requires_32bit[i]|!!(requires_32bit[i]>>32);
          assem_debug("%8x (%d) <- %8x\n",instr_addr[i],i,start+i*4);
          assem_debug("jump_in: %x (restricted - %x)\n",start+i*4,r);
          //int entry_point=(int)out;
          ////assem_debug("entry_point: %x\n",entry_point);
          //load_regs_entry(i);
          //if(entry_point==(int)out)
          //  entry_point=instr_addr[i];
          //else
          //  emit_jmp(instr_addr[i]);
          //ll_add_32(jump_in+page,vaddr,r,(void *)entry_point);
          ll_add_32(jump_dirty+vpage,vaddr,r,(void *)out);
          int entry_point=do_dirty_stub(i);
          ll_add_32(jump_in+page,vaddr,r,(void *)entry_point);
        }
      }
    }
  }
  // Write out the literal pool if necessary
  literal_pool(0);
  #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
  // Align code
  if(((u_int)out)&7) emit_addnop(13);
  #endif
  assert((u_int)out-beginning<MAX_OUTPUT_BLOCK_SIZE);
  //printf("shadow buffer: %x-%x\n",(int)copy,(int)copy+slen*4);
  memcpy(copy,source,slen*4);
  copy+=slen*4;
  
  #ifdef __arm__
  __clear_cache((void *)beginning,out);
  #endif
  
  // If we're within 256K of the end of the buffer,
  // start over from the beginning. (Is 256K enough?)
  if((int)out>BASE_ADDR+(1<<TARGET_SIZE_2)-MAX_OUTPUT_BLOCK_SIZE) out=(u_char *)BASE_ADDR;
  
  // Trap writes to any of the pages we compiled
  for(i=start>>12;i<=(start+slen*4)>>12;i++) {
    invalid_code[i]=0;
#ifndef DISABLE_TLB
    memory_map[i]|=0x40000000;
    if((signed int)start>=(signed int)0xC0000000) {
      assert(using_tlb);
      j=(((u_int)i<<12)+(memory_map[i]<<2)-(u_int)rdram+(u_int)0x80000000)>>12;
      invalid_code[j]=0;
      memory_map[j]|=0x40000000;
      //printf("write protect physical page: %x (virtual %x)\n",j<<12,start);
    }
#endif
  }
#ifdef PCSX
  // PCSX maps all RAM mirror invalid_code tests to 0x80000000..0x80000000+RAM_SIZE
  if(get_page(start)<(RAM_SIZE>>12))
    for(i=start>>12;i<=(start+slen*4)>>12;i++)
      invalid_code[((u_int)0x80000000>>12)|i]=0;
#endif
  
  /* Pass 10 - Free memory by expiring oldest blocks */
  
  int end=((((int)out-BASE_ADDR)>>(TARGET_SIZE_2-16))+16384)&65535;
  while(expirep!=end)
  {
    int shift=TARGET_SIZE_2-3; // Divide into 8 blocks
    int base=BASE_ADDR+((expirep>>13)<<shift); // Base address of this block
    inv_debug("EXP: Phase %d\n",expirep);
    switch((expirep>>11)&3)
    {
      case 0:
        // Clear jump_in and jump_dirty
        ll_remove_matching_addrs(jump_in+(expirep&2047),base,shift);
        ll_remove_matching_addrs(jump_dirty+(expirep&2047),base,shift);
        ll_remove_matching_addrs(jump_in+2048+(expirep&2047),base,shift);
        ll_remove_matching_addrs(jump_dirty+2048+(expirep&2047),base,shift);
        break;
      case 1:
        // Clear pointers
        ll_kill_pointers(jump_out[expirep&2047],base,shift);
        ll_kill_pointers(jump_out[(expirep&2047)+2048],base,shift);
        break;
      case 2:
        // Clear hash table
        for(i=0;i<32;i++) {
          int *ht_bin=hash_table[((expirep&2047)<<5)+i];
          if((ht_bin[3]>>shift)==(base>>shift) ||
             ((ht_bin[3]-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(base>>shift)) {
            inv_debug("EXP: Remove hash %x -> %x\n",ht_bin[2],ht_bin[3]);
            ht_bin[2]=ht_bin[3]=-1;
          }
          if((ht_bin[1]>>shift)==(base>>shift) ||
             ((ht_bin[1]-MAX_OUTPUT_BLOCK_SIZE)>>shift)==(base>>shift)) {
            inv_debug("EXP: Remove hash %x -> %x\n",ht_bin[0],ht_bin[1]);
            ht_bin[0]=ht_bin[2];
            ht_bin[1]=ht_bin[3];
            ht_bin[2]=ht_bin[3]=-1;
          }
        }
        break;
      case 3:
        // Clear jump_out
        #ifdef __arm__
        if((expirep&2047)==0) 
          do_clear_cache();
        #endif
        ll_remove_matching_addrs(jump_out+(expirep&2047),base,shift);
        ll_remove_matching_addrs(jump_out+2048+(expirep&2047),base,shift);
        break;
    }
    expirep=(expirep+1)&65535;
  }
  return 0;
}

// vim:shiftwidth=2:expandtab