diff options
Diffstat (limited to 'libpcsxcore/new_dynarec/assem_x86.c')
| -rw-r--r-- | libpcsxcore/new_dynarec/assem_x86.c | 4363 |
1 files changed, 0 insertions, 4363 deletions
diff --git a/libpcsxcore/new_dynarec/assem_x86.c b/libpcsxcore/new_dynarec/assem_x86.c deleted file mode 100644 index 76ee0c2..0000000 --- a/libpcsxcore/new_dynarec/assem_x86.c +++ /dev/null @@ -1,4363 +0,0 @@ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * Mupen64plus - assem_x86.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. * - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ - -int cycle_count; -int last_count; -int pcaddr; -int pending_exception; -int branch_target; -uint64_t readmem_dword; -precomp_instr fake_pc; -u_int memory_map[1048576]; -u_int mini_ht[32][2] __attribute__((aligned(8))); -u_char restore_candidate[512] __attribute__((aligned(4))); - -void do_interrupt(); -void jump_vaddr_eax(); -void jump_vaddr_ecx(); -void jump_vaddr_edx(); -void jump_vaddr_ebx(); -void jump_vaddr_ebp(); -void jump_vaddr_edi(); - -const u_int jump_vaddr_reg[8] = { - (int)jump_vaddr_eax, - (int)jump_vaddr_ecx, - (int)jump_vaddr_edx, - (int)jump_vaddr_ebx, - 0, - (int)jump_vaddr_ebp, - 0, - (int)jump_vaddr_edi }; - -const u_short rounding_modes[4] = { - 0x33F, // round - 0xF3F, // trunc - 0xB3F, // ceil - 0x73F};// floor - -#include "fpu.h" - -// We need these for cmovcc instructions on x86 -u_int const_zero=0; -u_int const_one=1; - -/* Linker */ - -void set_jump_target(int addr,int target) -{ - u_char *ptr=(u_char *)addr; - if(*ptr==0x0f) - { - assert(ptr[1]>=0x80&&ptr[1]<=0x8f); - u_int *ptr2=(u_int *)(ptr+2); - *ptr2=target-(int)ptr2-4; - } - else if(*ptr==0xe8||*ptr==0xe9) { - u_int *ptr2=(u_int *)(ptr+1); - *ptr2=target-(int)ptr2-4; - } - else - { - assert(*ptr==0xc7); /* mov immediate (store address) */ - u_int *ptr2=(u_int *)(ptr+6); - *ptr2=target; - } -} - -void kill_pointer(void *stub) -{ - int *i_ptr=*((int **)(stub+6)); - *i_ptr=(int)stub-(int)i_ptr-4; -} -int get_pointer(void *stub) -{ - int *i_ptr=*((int **)(stub+6)); - return *i_ptr+(int)i_ptr+4; -} - -// Find the "clean" entry point from a "dirty" entry point -// by skipping past the call to verify_code -u_int get_clean_addr(int addr) -{ - u_char *ptr=(u_char *)addr; - assert(ptr[20]==0xE8); // call instruction - assert(ptr[25]==0x83); // pop (add esp,4) instruction - if(ptr[28]==0xE9) return *(u_int *)(ptr+29)+addr+33; // follow jmp - else return(addr+28); -} - -int verify_dirty(int addr) -{ - u_char *ptr=(u_char *)addr; - assert(ptr[5]==0xB8); - u_int source=*(u_int *)(ptr+6); - u_int copy=*(u_int *)(ptr+11); - u_int len=*(u_int *)(ptr+16); - assert(ptr[20]==0xE8); // call instruction - u_int verifier=*(u_int *)(ptr+21)+(u_int)ptr+25; - if(verifier==(u_int)verify_code_vm||verifier==(u_int)verify_code_ds) { - unsigned int page=source>>12; - unsigned int map_value=memory_map[page]; - if(map_value>=0x80000000) return 0; - while(page<((source+len-1)>>12)) { - if((memory_map[++page]<<2)!=(map_value<<2)) return 0; - } - source = source+(map_value<<2); - } - //printf("verify_dirty: %x %x %x\n",source,copy,len); - return !memcmp((void *)source,(void *)copy,len); -} - -// This doesn't necessarily find all clean entry points, just -// guarantees that it's not dirty -int isclean(int addr) -{ - u_char *ptr=(u_char *)addr; - if(ptr[5]!=0xB8) return 1; // mov imm,%eax - if(ptr[10]!=0xBB) return 1; // mov imm,%ebx - if(ptr[15]!=0xB9) return 1; // mov imm,%ecx - if(ptr[20]!=0xE8) return 1; // call instruction - if(ptr[25]!=0x83) return 1; // pop (add esp,4) instruction - return 0; -} - -void get_bounds(int addr,u_int *start,u_int *end) -{ - u_char *ptr=(u_char *)addr; - assert(ptr[5]==0xB8); - u_int source=*(u_int *)(ptr+6); - //u_int copy=*(u_int *)(ptr+11); - u_int len=*(u_int *)(ptr+16); - assert(ptr[20]==0xE8); // call instruction - u_int verifier=*(u_int *)(ptr+21)+(u_int)ptr+25; - if(verifier==(u_int)verify_code_vm||verifier==(u_int)verify_code_ds) { - if(memory_map[source>>12]>=0x80000000) source = 0; - else source = source+(memory_map[source>>12]<<2); - } - if(start) *start=source; - if(end) *end=source+len; -} - -/* Register allocation */ - -// Note: registers are allocated clean (unmodified state) -// if you intend to modify the register, you must call dirty_reg(). -void alloc_reg(struct regstat *cur,int i,signed char reg) -{ - int r,hr; - int preferred_reg = (reg&3)+(reg>28)*4-(reg==32)+2*(reg==36)-(reg==40); - - // Don't allocate unused registers - if((cur->u>>reg)&1) return; - - // see if it's already allocated - for(hr=0;hr<HOST_REGS;hr++) - { - if(cur->regmap[hr]==reg) return; - } - - // Keep the same mapping if the register was already allocated in a loop - preferred_reg = loop_reg(i,reg,preferred_reg); - - // Try to allocate the preferred register - if(cur->regmap[preferred_reg]==-1) { - cur->regmap[preferred_reg]=reg; - cur->dirty&=~(1<<preferred_reg); - cur->isconst&=~(1<<preferred_reg); - return; - } - r=cur->regmap[preferred_reg]; - if(r<64&&((cur->u>>r)&1)) { - cur->regmap[preferred_reg]=reg; - cur->dirty&=~(1<<preferred_reg); - cur->isconst&=~(1<<preferred_reg); - return; - } - if(r>=64&&((cur->uu>>(r&63))&1)) { - cur->regmap[preferred_reg]=reg; - cur->dirty&=~(1<<preferred_reg); - cur->isconst&=~(1<<preferred_reg); - return; - } - - // Try to allocate EAX, EBX, ECX, or EDX - // We prefer these because they can do byte and halfword loads - for(hr=0;hr<4;hr++) { - if(cur->regmap[hr]==-1) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - - // Clear any unneeded registers - // We try to keep the mapping consistent, if possible, because it - // makes branches easier (especially loops). So we try to allocate - // first (see above) before removing old mappings. If this is not - // possible then go ahead and clear out the registers that are no - // longer needed. - for(hr=0;hr<HOST_REGS;hr++) - { - r=cur->regmap[hr]; - if(r>=0) { - if(r<64) { - if((cur->u>>r)&1) - if(i==0||(unneeded_reg[i-1]>>r)&1) {cur->regmap[hr]=-1;break;} - } - else - { - if((cur->uu>>(r&63))&1) - if(i==0||(unneeded_reg_upper[i-1]>>(r&63))&1) {cur->regmap[hr]=-1;break;} - } - } - } - // Try to allocate any available register, but prefer - // registers that have not been used recently. - if(i>0) { - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { - if(regs[i-1].regmap[hr]!=rs1[i-1]&®s[i-1].regmap[hr]!=rs2[i-1]&®s[i-1].regmap[hr]!=rt1[i-1]&®s[i-1].regmap[hr]!=rt2[i-1]) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - // Try to allocate any available register - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - - // Ok, now we have to evict someone - // Pick a register we hopefully won't need soon - u_char hsn[MAXREG+1]; - memset(hsn,10,sizeof(hsn)); - int j; - lsn(hsn,i,&preferred_reg); - //printf("hsn(%x): %d %d %d %d %d %d %d\n",start+i*4,hsn[cur->regmap[0]&63],hsn[cur->regmap[1]&63],hsn[cur->regmap[2]&63],hsn[cur->regmap[3]&63],hsn[cur->regmap[5]&63],hsn[cur->regmap[6]&63],hsn[cur->regmap[7]&63]); - if(i>0) { - // Don't evict the cycle count at entry points, otherwise the entry - // stub will have to write it. - if(bt[i]&&hsn[CCREG]>2) hsn[CCREG]=2; - if(i>1&&hsn[CCREG]>2&&(itype[i-2]==RJUMP||itype[i-2]==UJUMP||itype[i-2]==CJUMP||itype[i-2]==SJUMP||itype[i-2]==FJUMP)) hsn[CCREG]=2; - for(j=10;j>=3;j--) - { - // Alloc preferred register if available - if(hsn[r=cur->regmap[preferred_reg]&63]==j) { - for(hr=0;hr<HOST_REGS;hr++) { - // Evict both parts of a 64-bit register - if((cur->regmap[hr]&63)==r) { - cur->regmap[hr]=-1; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - } - } - cur->regmap[preferred_reg]=reg; - return; - } - for(r=1;r<=MAXREG;r++) - { - if(hsn[r]==j&&r!=rs1[i-1]&&r!=rs2[i-1]&&r!=rt1[i-1]&&r!=rt2[i-1]) { - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=HOST_CCREG||j<hsn[CCREG]) { - if(cur->regmap[hr]==r+64) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=HOST_CCREG||j<hsn[CCREG]) { - if(cur->regmap[hr]==r) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - } - } - for(j=10;j>=0;j--) - { - for(r=1;r<=MAXREG;r++) - { - if(hsn[r]==j) { - for(hr=0;hr<HOST_REGS;hr++) { - if(cur->regmap[hr]==r+64) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - for(hr=0;hr<HOST_REGS;hr++) { - if(cur->regmap[hr]==r) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - printf("This shouldn't happen (alloc_reg)");exit(1); -} - -void alloc_reg64(struct regstat *cur,int i,signed char reg) -{ - int preferred_reg = 5+reg%3; - int r,hr; - - // allocate the lower 32 bits - alloc_reg(cur,i,reg); - - // Don't allocate unused registers - if((cur->uu>>reg)&1) return; - - // see if the upper half is already allocated - for(hr=0;hr<HOST_REGS;hr++) - { - if(cur->regmap[hr]==reg+64) return; - } - - // Keep the same mapping if the register was already allocated in a loop - preferred_reg = loop_reg(i,reg,preferred_reg); - - // Try to allocate the preferred register - if(cur->regmap[preferred_reg]==-1) { - cur->regmap[preferred_reg]=reg|64; - cur->dirty&=~(1<<preferred_reg); - cur->isconst&=~(1<<preferred_reg); - return; - } - r=cur->regmap[preferred_reg]; - if(r<64&&((cur->u>>r)&1)) { - cur->regmap[preferred_reg]=reg|64; - cur->dirty&=~(1<<preferred_reg); - cur->isconst&=~(1<<preferred_reg); - return; - } - if(r>=64&&((cur->uu>>(r&63))&1)) { - cur->regmap[preferred_reg]=reg|64; - cur->dirty&=~(1<<preferred_reg); - cur->isconst&=~(1<<preferred_reg); - return; - } - - // Try to allocate EBP, ESI or EDI - for(hr=5;hr<8;hr++) { - if(cur->regmap[hr]==-1) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - - // Clear any unneeded registers - // We try to keep the mapping consistent, if possible, because it - // makes branches easier (especially loops). So we try to allocate - // first (see above) before removing old mappings. If this is not - // possible then go ahead and clear out the registers that are no - // longer needed. - for(hr=HOST_REGS-1;hr>=0;hr--) - { - r=cur->regmap[hr]; - if(r>=0) { - if(r<64) { - if((cur->u>>r)&1) {cur->regmap[hr]=-1;break;} - } - else - { - if((cur->uu>>(r&63))&1) {cur->regmap[hr]=-1;break;} - } - } - } - // Try to allocate any available register, but prefer - // registers that have not been used recently. - if(i>0) { - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { - if(regs[i-1].regmap[hr]!=rs1[i-1]&®s[i-1].regmap[hr]!=rs2[i-1]&®s[i-1].regmap[hr]!=rt1[i-1]&®s[i-1].regmap[hr]!=rt2[i-1]) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - // Try to allocate any available register - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - - // Ok, now we have to evict someone - // Pick a register we hopefully won't need soon - u_char hsn[MAXREG+1]; - memset(hsn,10,sizeof(hsn)); - int j; - lsn(hsn,i,&preferred_reg); - //printf("eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",cur->regmap[0],cur->regmap[1],cur->regmap[2],cur->regmap[3],cur->regmap[5],cur->regmap[6],cur->regmap[7]); - //printf("hsn(%x): %d %d %d %d %d %d %d\n",start+i*4,hsn[cur->regmap[0]&63],hsn[cur->regmap[1]&63],hsn[cur->regmap[2]&63],hsn[cur->regmap[3]&63],hsn[cur->regmap[5]&63],hsn[cur->regmap[6]&63],hsn[cur->regmap[7]&63]); - if(i>0) { - // Don't evict the cycle count at entry points, otherwise the entry - // stub will have to write it. - if(bt[i]&&hsn[CCREG]>2) hsn[CCREG]=2; - if(i>1&&hsn[CCREG]>2&&(itype[i-2]==RJUMP||itype[i-2]==UJUMP||itype[i-2]==CJUMP||itype[i-2]==SJUMP||itype[i-2]==FJUMP)) hsn[CCREG]=2; - for(j=10;j>=3;j--) - { - // Alloc preferred register if available - if(hsn[r=cur->regmap[preferred_reg]&63]==j) { - for(hr=0;hr<HOST_REGS;hr++) { - // Evict both parts of a 64-bit register - if((cur->regmap[hr]&63)==r) { - cur->regmap[hr]=-1; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - } - } - cur->regmap[preferred_reg]=reg|64; - return; - } - for(r=1;r<=MAXREG;r++) - { - if(hsn[r]==j&&r!=rs1[i-1]&&r!=rs2[i-1]&&r!=rt1[i-1]&&r!=rt2[i-1]) { - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=HOST_CCREG||j<hsn[CCREG]) { - if(cur->regmap[hr]==r+64) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=HOST_CCREG||j<hsn[CCREG]) { - if(cur->regmap[hr]==r) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - } - } - for(j=10;j>=0;j--) - { - for(r=1;r<=MAXREG;r++) - { - if(hsn[r]==j) { - for(hr=0;hr<HOST_REGS;hr++) { - if(cur->regmap[hr]==r+64) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - for(hr=0;hr<HOST_REGS;hr++) { - if(cur->regmap[hr]==r) { - cur->regmap[hr]=reg|64; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - printf("This shouldn't happen");exit(1); -} - -// Allocate a temporary register. This is done without regard to -// dirty status or whether the register we request is on the unneeded list -// Note: This will only allocate one register, even if called multiple times -void alloc_reg_temp(struct regstat *cur,int i,signed char reg) -{ - int r,hr; - int preferred_reg = -1; - - // see if it's already allocated - for(hr=0;hr<HOST_REGS;hr++) - { - if(hr!=EXCLUDE_REG&&cur->regmap[hr]==reg) return; - } - - // Try to allocate any available register, starting with EDI, ESI, EBP... - // We prefer EDI, ESI, EBP since the others are used for byte/halfword stores - for(hr=HOST_REGS-1;hr>=0;hr--) { - if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - - // Find an unneeded register - for(hr=HOST_REGS-1;hr>=0;hr--) - { - r=cur->regmap[hr]; - if(r>=0) { - if(r<64) { - if((cur->u>>r)&1) { - if(i==0||((unneeded_reg[i-1]>>r)&1)) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - else - { - if((cur->uu>>(r&63))&1) { - if(i==0||((unneeded_reg_upper[i-1]>>(r&63))&1)) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - - // Ok, now we have to evict someone - // Pick a register we hopefully won't need soon - // TODO: we might want to follow unconditional jumps here - // TODO: get rid of dupe code and make this into a function - u_char hsn[MAXREG+1]; - memset(hsn,10,sizeof(hsn)); - int j; - lsn(hsn,i,&preferred_reg); - //printf("hsn: %d %d %d %d %d %d %d\n",hsn[cur->regmap[0]&63],hsn[cur->regmap[1]&63],hsn[cur->regmap[2]&63],hsn[cur->regmap[3]&63],hsn[cur->regmap[5]&63],hsn[cur->regmap[6]&63],hsn[cur->regmap[7]&63]); - if(i>0) { - // Don't evict the cycle count at entry points, otherwise the entry - // stub will have to write it. - if(bt[i]&&hsn[CCREG]>2) hsn[CCREG]=2; - if(i>1&&hsn[CCREG]>2&&(itype[i-2]==RJUMP||itype[i-2]==UJUMP||itype[i-2]==CJUMP||itype[i-2]==SJUMP||itype[i-2]==FJUMP)) hsn[CCREG]=2; - for(j=10;j>=3;j--) - { - for(r=1;r<=MAXREG;r++) - { - if(hsn[r]==j&&r!=rs1[i-1]&&r!=rs2[i-1]&&r!=rt1[i-1]&&r!=rt2[i-1]) { - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=HOST_CCREG||hsn[CCREG]>2) { - if(cur->regmap[hr]==r+64) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - for(hr=0;hr<HOST_REGS;hr++) { - if(hr!=HOST_CCREG||hsn[CCREG]>2) { - if(cur->regmap[hr]==r) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - } - } - for(j=10;j>=0;j--) - { - for(r=1;r<=MAXREG;r++) - { - if(hsn[r]==j) { - for(hr=0;hr<HOST_REGS;hr++) { - if(cur->regmap[hr]==r+64) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - for(hr=0;hr<HOST_REGS;hr++) { - if(cur->regmap[hr]==r) { - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); - return; - } - } - } - } - } - printf("This shouldn't happen");exit(1); -} -// Allocate a specific x86 register. -void alloc_x86_reg(struct regstat *cur,int i,signed char reg,char hr) -{ - int n; - - // see if it's already allocated (and dealloc it) - for(n=0;n<HOST_REGS;n++) - { - if(n!=ESP&&cur->regmap[n]==reg) {cur->regmap[n]=-1;} - } - - cur->regmap[hr]=reg; - cur->dirty&=~(1<<hr); - cur->isconst&=~(1<<hr); -} - -// Alloc cycle count into dedicated register -alloc_cc(struct regstat *cur,int i) -{ - alloc_x86_reg(cur,i,CCREG,ESI); -} - -/* Special alloc */ - -void multdiv_alloc_x86(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_x86_reg(current,i,HIREG,EDX); - alloc_x86_reg(current,i,LOREG,EAX); - 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 - { - alloc_x86_reg(current,i,HIREG|64,EDX); - alloc_x86_reg(current,i,HIREG,EAX); - 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); - } - } - 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); - } -} -#define multdiv_alloc multdiv_alloc_x86 - -/* Assembler */ - -char regname[8][4] = { - "eax", - "ecx", - "edx", - "ebx", - "esp", - "ebp", - "esi", - "edi"}; - -void output_byte(u_char byte) -{ - *(out++)=byte; -} -void output_modrm(u_char mod,u_char rm,u_char ext) -{ - assert(mod<4); - assert(rm<8); - assert(ext<8); - u_char byte=(mod<<6)|(ext<<3)|rm; - *(out++)=byte; -} -void output_sib(u_char scale,u_char index,u_char base) -{ - assert(scale<4); - assert(index<8); - assert(base<8); - u_char byte=(scale<<6)|(index<<3)|base; - *(out++)=byte; -} -void output_w32(u_int word) -{ - *((u_int *)out)=word; - out+=4; -} - -void emit_mov(int rs,int rt) -{ - assem_debug("mov %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x89); - output_modrm(3,rt,rs); -} - -void emit_add(int rs1,int rs2,int rt) -{ - if(rs1==rt) { - assem_debug("add %%%s,%%%s\n",regname[rs2],regname[rs1]); - output_byte(0x01); - output_modrm(3,rs1,rs2); - }else if(rs2==rt) { - assem_debug("add %%%s,%%%s\n",regname[rs1],regname[rs2]); - output_byte(0x01); - output_modrm(3,rs2,rs1); - }else { - assem_debug("lea (%%%s,%%%s),%%%s\n",regname[rs1],regname[rs2],regname[rt]); - output_byte(0x8D); - if(rs1!=EBP) { - output_modrm(0,4,rt); - output_sib(0,rs2,rs1); - }else if(rs2!=EBP) { - output_modrm(0,4,rt); - output_sib(0,rs1,rs2); - }else /* lea 0(,%ebp,2) */{ - output_modrm(0,4,rt); - output_sib(1,EBP,5); - output_w32(0); - } - } -} - -void emit_adds(int rs1,int rs2,int rt) -{ - emit_add(rs1,rs2,rt); -} - -void emit_lea8(int rs1,int rt) -{ - assem_debug("lea 0(%%%s,8),%%%s\n",regname[rs1],regname[rt]); - output_byte(0x8D); - output_modrm(0,4,rt); - output_sib(3,rs1,5); - output_w32(0); -} -void emit_leairrx1(int imm,int rs1,int rs2,int rt) -{ - assem_debug("lea %x(%%%s,%%%s,1),%%%s\n",imm,regname[rs1],regname[rs2],regname[rt]); - output_byte(0x8D); - if(imm!=0||rs1==EBP) { - output_modrm(2,4,rt); - output_sib(0,rs2,rs1); - output_w32(imm); - }else{ - output_modrm(0,4,rt); - output_sib(0,rs2,rs1); - } -} -void emit_leairrx4(int imm,int rs1,int rs2,int rt) -{ - assem_debug("lea %x(%%%s,%%%s,4),%%%s\n",imm,regname[rs1],regname[rs2],regname[rt]); - output_byte(0x8D); - if(imm!=0||rs1==EBP) { - output_modrm(2,4,rt); - output_sib(2,rs2,rs1); - output_w32(imm); - }else{ - output_modrm(0,4,rt); - output_sib(2,rs2,rs1); - } -} - -void emit_neg(int rs, int rt) -{ - if(rs!=rt) emit_mov(rs,rt); - assem_debug("neg %%%s\n",regname[rt]); - output_byte(0xF7); - output_modrm(3,rt,3); -} - -void emit_negs(int rs, int rt) -{ - emit_neg(rs,rt); -} - -void emit_sub(int rs1,int rs2,int rt) -{ - if(rs1==rt) { - assem_debug("sub %%%s,%%%s\n",regname[rs2],regname[rs1]); - output_byte(0x29); - output_modrm(3,rs1,rs2); - } else if(rs2==rt) { - emit_neg(rs2,rs2); - emit_add(rs2,rs1,rs2); - } else { - emit_mov(rs1,rt); - emit_sub(rt,rs2,rt); - } -} - -void emit_subs(int rs1,int rs2,int rt) -{ - emit_sub(rs1,rs2,rt); -} - -void emit_zeroreg(int rt) -{ - output_byte(0x31); - output_modrm(3,rt,rt); - assem_debug("xor %%%s,%%%s\n",regname[rt],regname[rt]); -} - -void emit_loadreg(int r, int hr) -{ - if((r&63)==0) - emit_zeroreg(hr); - else { - int addr=((int)reg)+((r&63)<<3)+((r&64)>>4); - if((r&63)==HIREG) addr=(int)&hi+((r&64)>>4); - if((r&63)==LOREG) addr=(int)&lo+((r&64)>>4); - if(r==CCREG) addr=(int)&cycle_count; - if(r==CSREG) addr=(int)&Status; - if(r==FSREG) addr=(int)&FCR31; - assem_debug("mov %x+%d,%%%s\n",addr,r,regname[hr]); - output_byte(0x8B); - output_modrm(0,5,hr); - output_w32(addr); - } -} -void emit_storereg(int r, int hr) -{ - int addr=((int)reg)+((r&63)<<3)+((r&64)>>4); - if((r&63)==HIREG) addr=(int)&hi+((r&64)>>4); - if((r&63)==LOREG) addr=(int)&lo+((r&64)>>4); - if(r==CCREG) addr=(int)&cycle_count; - if(r==FSREG) addr=(int)&FCR31; - assem_debug("mov %%%s,%x+%d\n",regname[hr],addr,r); - output_byte(0x89); - output_modrm(0,5,hr); - output_w32(addr); -} - -void emit_test(int rs, int rt) -{ - assem_debug("test %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x85); - output_modrm(3,rs,rt); -} - -void emit_testimm(int rs,int imm) -{ - assem_debug("test $0x%x,%%%s\n",imm,regname[rs]); - if(imm<128&&imm>=-128&&rs<4) { - output_byte(0xF6); - output_modrm(3,rs,0); - output_byte(imm); - } - else - { - output_byte(0xF7); - output_modrm(3,rs,0); - output_w32(imm); - } -} - -void emit_not(int rs,int rt) -{ - if(rs!=rt) emit_mov(rs,rt); - assem_debug("not %%%s\n",regname[rt]); - output_byte(0xF7); - output_modrm(3,rt,2); -} - -void emit_and(u_int rs1,u_int rs2,u_int rt) -{ - assert(rs1<8); - assert(rs2<8); - assert(rt<8); - if(rs1==rt) { - assem_debug("and %%%s,%%%s\n",regname[rs2],regname[rt]); - output_byte(0x21); - output_modrm(3,rs1,rs2); - } - else - if(rs2==rt) { - assem_debug("and %%%s,%%%s\n",regname[rs1],regname[rt]); - output_byte(0x21); - output_modrm(3,rs2,rs1); - } - else { - emit_mov(rs1,rt); - emit_and(rt,rs2,rt); - } -} - -void emit_or(u_int rs1,u_int rs2,u_int rt) -{ - assert(rs1<8); - assert(rs2<8); - assert(rt<8); - if(rs1==rt) { - assem_debug("or %%%s,%%%s\n",regname[rs2],regname[rt]); - output_byte(0x09); - output_modrm(3,rs1,rs2); - } - else - if(rs2==rt) { - assem_debug("or %%%s,%%%s\n",regname[rs1],regname[rt]); - output_byte(0x09); - output_modrm(3,rs2,rs1); - } - else { - emit_mov(rs1,rt); - emit_or(rt,rs2,rt); - } -} -void emit_or_and_set_flags(int rs1,int rs2,int rt) -{ - emit_or(rs1,rs2,rt); -} - -void emit_xor(u_int rs1,u_int rs2,u_int rt) -{ - assert(rs1<8); - assert(rs2<8); - assert(rt<8); - if(rs1==rt) { - assem_debug("xor %%%s,%%%s\n",regname[rs2],regname[rt]); - output_byte(0x31); - output_modrm(3,rs1,rs2); - } - else - if(rs2==rt) { - assem_debug("xor %%%s,%%%s\n",regname[rs1],regname[rt]); - output_byte(0x31); - output_modrm(3,rs2,rs1); - } - else { - emit_mov(rs1,rt); - emit_xor(rt,rs2,rt); - } -} - -void emit_movimm(int imm,u_int rt) -{ - assem_debug("mov $%d,%%%s\n",imm,regname[rt]); - assert(rt<8); - output_byte(0xB8+rt); - output_w32(imm); -} - -void emit_addimm(int rs,int imm,int rt) -{ - if(rs==rt) { - if(imm!=0) { - assem_debug("add $%d,%%%s\n",imm,regname[rt]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,0); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,0); - output_w32(imm); - } - } - } - else { - if(imm!=0) { - assem_debug("lea %d(%%%s),%%%s\n",imm,regname[rs],regname[rt]); - output_byte(0x8D); - if(imm<128&&imm>=-128) { - output_modrm(1,rs,rt); - output_byte(imm); - }else{ - output_modrm(2,rs,rt); - output_w32(imm); - } - }else{ - emit_mov(rs,rt); - } - } -} - -void emit_addimm_and_set_flags(int imm,int rt) -{ - assem_debug("add $%d,%%%s\n",imm,regname[rt]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,0); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,0); - output_w32(imm); - } -} -void emit_addimm_no_flags(int imm,int rt) -{ - if(imm!=0) { - assem_debug("lea %d(%%%s),%%%s\n",imm,regname[rt],regname[rt]); - output_byte(0x8D); - if(imm<128&&imm>=-128) { - output_modrm(1,rt,rt); - output_byte(imm); - }else{ - output_modrm(2,rt,rt); - output_w32(imm); - } - } -} - -void emit_adcimm(int imm,u_int rt) -{ - assem_debug("adc $%d,%%%s\n",imm,regname[rt]); - assert(rt<8); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,2); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,2); - output_w32(imm); - } -} -void emit_sbbimm(int imm,u_int rt) -{ - assem_debug("sbb $%d,%%%s\n",imm,regname[rt]); - assert(rt<8); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,3); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,3); - output_w32(imm); - } -} - -void emit_addimm64_32(int rsh,int rsl,int imm,int rth,int rtl) -{ - if(rsh==rth&&rsl==rtl) { - assem_debug("add $%d,%%%s\n",imm,regname[rtl]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rtl,0); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rtl,0); - output_w32(imm); - } - assem_debug("adc $%d,%%%s\n",imm>>31,regname[rth]); - output_byte(0x83); - output_modrm(3,rth,2); - output_byte(imm>>31); - } - else { - emit_mov(rsh,rth); - emit_mov(rsl,rtl); - emit_addimm64_32(rth,rtl,imm,rth,rtl); - } -} - -void emit_sbb(int rs1,int rs2) -{ - assem_debug("sbb %%%s,%%%s\n",regname[rs2],regname[rs1]); - output_byte(0x19); - output_modrm(3,rs1,rs2); -} - -void emit_andimm(int rs,int imm,int rt) -{ - if(rs==rt) { - assem_debug("and $%d,%%%s\n",imm,regname[rt]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,4); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,4); - output_w32(imm); - } - } - else { - emit_mov(rs,rt); - emit_andimm(rt,imm,rt); - } -} - -void emit_orimm(int rs,int imm,int rt) -{ - if(rs==rt) { - assem_debug("or $%d,%%%s\n",imm,regname[rt]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,1); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,1); - output_w32(imm); - } - } - else { - emit_mov(rs,rt); - emit_orimm(rt,imm,rt); - } -} - -void emit_xorimm(int rs,int imm,int rt) -{ - if(rs==rt) { - assem_debug("xor $%d,%%%s\n",imm,regname[rt]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rt,6); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rt,6); - output_w32(imm); - } - } - else { - emit_mov(rs,rt); - emit_xorimm(rt,imm,rt); - } -} - -void emit_shlimm(int rs,u_int imm,int rt) -{ - if(rs==rt) { - assem_debug("shl %%%s,%d\n",regname[rt],imm); - assert(imm>0); - if(imm==1) output_byte(0xD1); - else output_byte(0xC1); - output_modrm(3,rt,4); - if(imm>1) output_byte(imm); - } - else { - emit_mov(rs,rt); - emit_shlimm(rt,imm,rt); - } -} - -void emit_shrimm(int rs,u_int imm,int rt) -{ - if(rs==rt) { - assem_debug("shr %%%s,%d\n",regname[rt],imm); - assert(imm>0); - if(imm==1) output_byte(0xD1); - else output_byte(0xC1); - output_modrm(3,rt,5); - if(imm>1) output_byte(imm); - } - else { - emit_mov(rs,rt); - emit_shrimm(rt,imm,rt); - } -} - -void emit_sarimm(int rs,u_int imm,int rt) -{ - if(rs==rt) { - assem_debug("sar %%%s,%d\n",regname[rt],imm); - assert(imm>0); - if(imm==1) output_byte(0xD1); - else output_byte(0xC1); - output_modrm(3,rt,7); - if(imm>1) output_byte(imm); - } - else { - emit_mov(rs,rt); - emit_sarimm(rt,imm,rt); - } -} - -void emit_rorimm(int rs,u_int imm,int rt) -{ - if(rs==rt) { - assem_debug("ror %%%s,%d\n",regname[rt],imm); - assert(imm>0); - if(imm==1) output_byte(0xD1); - else output_byte(0xC1); - output_modrm(3,rt,1); - if(imm>1) output_byte(imm); - } - else { - emit_mov(rs,rt); - emit_sarimm(rt,imm,rt); - } -} - -void emit_shldimm(int rs,int rs2,u_int imm,int rt) -{ - if(rs==rt) { - assem_debug("shld %%%s,%%%s,%d\n",regname[rt],regname[rs2],imm); - assert(imm>0); - output_byte(0x0F); - output_byte(0xA4); - output_modrm(3,rt,rs2); - output_byte(imm); - } - else { - emit_mov(rs,rt); - emit_shldimm(rt,rs2,imm,rt); - } -} - -void emit_shrdimm(int rs,int rs2,u_int imm,int rt) -{ - if(rs==rt) { - assem_debug("shrd %%%s,%%%s,%d\n",regname[rt],regname[rs2],imm); - assert(imm>0); - output_byte(0x0F); - output_byte(0xAC); - output_modrm(3,rt,rs2); - output_byte(imm); - } - else { - emit_mov(rs,rt); - emit_shrdimm(rt,rs2,imm,rt); - } -} - -void emit_shlcl(int r) -{ - assem_debug("shl %%%s,%%cl\n",regname[r]); - output_byte(0xD3); - output_modrm(3,r,4); -} -void emit_shrcl(int r) -{ - assem_debug("shr %%%s,%%cl\n",regname[r]); - output_byte(0xD3); - output_modrm(3,r,5); -} -void emit_sarcl(int r) -{ - assem_debug("sar %%%s,%%cl\n",regname[r]); - output_byte(0xD3); - output_modrm(3,r,7); -} - -void emit_shldcl(int r1,int r2) -{ - assem_debug("shld %%%s,%%%s,%%cl\n",regname[r1],regname[r2]); - output_byte(0x0F); - output_byte(0xA5); - output_modrm(3,r1,r2); -} -void emit_shrdcl(int r1,int r2) -{ - assem_debug("shrd %%%s,%%%s,%%cl\n",regname[r1],regname[r2]); - output_byte(0x0F); - output_byte(0xAD); - output_modrm(3,r1,r2); -} - -void emit_cmpimm(int rs,int imm) -{ - assem_debug("cmp $%d,%%%s\n",imm,regname[rs]); - if(imm<128&&imm>=-128) { - output_byte(0x83); - output_modrm(3,rs,7); - output_byte(imm); - } - else - { - output_byte(0x81); - output_modrm(3,rs,7); - output_w32(imm); - } -} - -void emit_cmovne(u_int *addr,int rt) -{ - assem_debug("cmovne %x,%%%s",(int)addr,regname[rt]); - if(addr==&const_zero) assem_debug(" [zero]\n"); - else if(addr==&const_one) assem_debug(" [one]\n"); - else assem_debug("\n"); - output_byte(0x0F); - output_byte(0x45); - output_modrm(0,5,rt); - output_w32((int)addr); -} -void emit_cmovl(u_int *addr,int rt) -{ - assem_debug("cmovl %x,%%%s",(int)addr,regname[rt]); - if(addr==&const_zero) assem_debug(" [zero]\n"); - else if(addr==&const_one) assem_debug(" [one]\n"); - else assem_debug("\n"); - output_byte(0x0F); - output_byte(0x4C); - output_modrm(0,5,rt); - output_w32((int)addr); -} -void emit_cmovs(u_int *addr,int rt) -{ - assem_debug("cmovs %x,%%%s",(int)addr,regname[rt]); - if(addr==&const_zero) assem_debug(" [zero]\n"); - else if(addr==&const_one) assem_debug(" [one]\n"); - else assem_debug("\n"); - output_byte(0x0F); - output_byte(0x48); - output_modrm(0,5,rt); - output_w32((int)addr); -} -void emit_cmovne_reg(int rs,int rt) -{ - assem_debug("cmovne %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x45); - output_modrm(3,rs,rt); -} -void emit_cmovl_reg(int rs,int rt) -{ - assem_debug("cmovl %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x4C); - output_modrm(3,rs,rt); -} -void emit_cmovs_reg(int rs,int rt) -{ - assem_debug("cmovs %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x48); - output_modrm(3,rs,rt); -} -void emit_cmovnc_reg(int rs,int rt) -{ - assem_debug("cmovae %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x43); - output_modrm(3,rs,rt); -} -void emit_cmova_reg(int rs,int rt) -{ - assem_debug("cmova %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x47); - output_modrm(3,rs,rt); -} -void emit_cmovp_reg(int rs,int rt) -{ - assem_debug("cmovp %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x4A); - output_modrm(3,rs,rt); -} -void emit_cmovnp_reg(int rs,int rt) -{ - assem_debug("cmovnp %%%s,%%%s\n",regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0x4B); - output_modrm(3,rs,rt); -} -void emit_setl(int rt) -{ - assem_debug("setl %%%s\n",regname[rt]); - output_byte(0x0F); - output_byte(0x9C); - output_modrm(3,rt,2); -} -void emit_movzbl_reg(int rs, int rt) -{ - assem_debug("movzbl %%%s,%%%s\n",regname[rs]+1,regname[rt]); - output_byte(0x0F); - output_byte(0xB6); - output_modrm(3,rs,rt); -} - -void emit_slti32(int rs,int imm,int rt) -{ - if(rs!=rt) emit_zeroreg(rt); - emit_cmpimm(rs,imm); - if(rt<4) { - emit_setl(rt); - if(rs==rt) emit_movzbl_reg(rt,rt); - } - else - { - if(rs==rt) emit_movimm(0,rt); - emit_cmovl(&const_one,rt); - } -} -void emit_sltiu32(int rs,int imm,int rt) -{ - if(rs!=rt) emit_zeroreg(rt); - emit_cmpimm(rs,imm); - if(rs==rt) emit_movimm(0,rt); - emit_adcimm(0,rt); -} -void emit_slti64_32(int rsh,int rsl,int imm,int rt) -{ - assert(rsh!=rt); - emit_slti32(rsl,imm,rt); - if(imm>=0) - { - emit_test(rsh,rsh); - emit_cmovne(&const_zero,rt); - emit_cmovs(&const_one,rt); - } - else - { - emit_cmpimm(rsh,-1); - emit_cmovne(&const_zero,rt); - emit_cmovl(&const_one,rt); - } -} -void emit_sltiu64_32(int rsh,int rsl,int imm,int rt) -{ - assert(rsh!=rt); - emit_sltiu32(rsl,imm,rt); - if(imm>=0) - { - emit_test(rsh,rsh); - emit_cmovne(&const_zero,rt); - } - else - { - emit_cmpimm(rsh,-1); - emit_cmovne(&const_one,rt); - } -} - -void emit_cmp(int rs,int rt) -{ - assem_debug("cmp %%%s,%%%s\n",regname[rt],regname[rs]); - output_byte(0x39); - output_modrm(3,rs,rt); -} -void emit_set_gz32(int rs, int rt) -{ - //assem_debug("set_gz32\n"); - emit_cmpimm(rs,1); - emit_movimm(1,rt); - emit_cmovl(&const_zero,rt); -} -void emit_set_nz32(int rs, int rt) -{ - //assem_debug("set_nz32\n"); - emit_cmpimm(rs,1); - emit_movimm(1,rt); - emit_sbbimm(0,rt); -} -void emit_set_gz64_32(int rsh, int rsl, int rt) -{ - //assem_debug("set_gz64\n"); - emit_set_gz32(rsl,rt); - emit_test(rsh,rsh); - emit_cmovne(&const_one,rt); - emit_cmovs(&const_zero,rt); -} -void emit_set_nz64_32(int rsh, int rsl, int rt) -{ - //assem_debug("set_nz64\n"); - emit_or_and_set_flags(rsh,rsl,rt); - emit_cmovne(&const_one,rt); -} -void emit_set_if_less32(int rs1, int rs2, int rt) -{ - //assem_debug("set if less (%%%s,%%%s),%%%s\n",regname[rs1],regname[rs2],regname[rt]); - if(rs1!=rt&&rs2!=rt) emit_zeroreg(rt); - emit_cmp(rs1,rs2); - if(rs1==rt||rs2==rt) emit_movimm(0,rt); - emit_cmovl(&const_one,rt); -} -void emit_set_if_carry32(int rs1, int rs2, int rt) -{ - //assem_debug("set if carry (%%%s,%%%s),%%%s\n",regname[rs1],regname[rs2],regname[rt]); - if(rs1!=rt&&rs2!=rt) emit_zeroreg(rt); - emit_cmp(rs1,rs2); - if(rs1==rt||rs2==rt) emit_movimm(0,rt); - emit_adcimm(0,rt); -} -void emit_set_if_less64_32(int u1, int l1, int u2, int l2, int rt) -{ - //assem_debug("set if less64 (%%%s,%%%s,%%%s,%%%s),%%%s\n",regname[u1],regname[l1],regname[u2],regname[l2],regname[rt]); - assert(u1!=rt); - assert(u2!=rt); - emit_cmp(l1,l2); - emit_mov(u1,rt); - emit_sbb(rt,u2); - emit_movimm(0,rt); - emit_cmovl(&const_one,rt); -} -void emit_set_if_carry64_32(int u1, int l1, int u2, int l2, int rt) -{ - //assem_debug("set if carry64 (%%%s,%%%s,%%%s,%%%s),%%%s\n",regname[u1],regname[l1],regname[u2],regname[l2],regname[rt]); - assert(u1!=rt); - assert(u2!=rt); - emit_cmp(l1,l2); - emit_mov(u1,rt); - emit_sbb(rt,u2); - emit_movimm(0,rt); - emit_adcimm(0,rt); -} - -void emit_call(int a) -{ - assem_debug("call %x (%x+%x)\n",a,(int)out+5,a-(int)out-5); - output_byte(0xe8); - output_w32(a-(int)out-4); -} -void emit_jmp(int a) -{ - assem_debug("jmp %x (%x+%x)\n",a,(int)out+5,a-(int)out-5); - output_byte(0xe9); - output_w32(a-(int)out-4); -} -void emit_jne(int a) -{ - assem_debug("jne %x\n",a); - output_byte(0x0f); - output_byte(0x85); - output_w32(a-(int)out-4); -} -void emit_jeq(int a) -{ - assem_debug("jeq %x\n",a); - output_byte(0x0f); - output_byte(0x84); - output_w32(a-(int)out-4); -} -void emit_js(int a) -{ - assem_debug("js %x\n",a); - output_byte(0x0f); - output_byte(0x88); - output_w32(a-(int)out-4); -} -void emit_jns(int a) -{ - assem_debug("jns %x\n",a); - output_byte(0x0f); - output_byte(0x89); - output_w32(a-(int)out-4); -} -void emit_jl(int a) -{ - assem_debug("jl %x\n",a); - output_byte(0x0f); - output_byte(0x8c); - output_w32(a-(int)out-4); -} -void emit_jge(int a) -{ - assem_debug("jge %x\n",a); - output_byte(0x0f); - output_byte(0x8d); - output_w32(a-(int)out-4); -} -void emit_jno(int a) -{ - assem_debug("jno %x\n",a); - output_byte(0x0f); - output_byte(0x81); - output_w32(a-(int)out-4); -} -void emit_jc(int a) -{ - assem_debug("jc %x\n",a); - output_byte(0x0f); - output_byte(0x82); - output_w32(a-(int)out-4); -} - -void emit_pushimm(int imm) -{ - assem_debug("push $%x\n",imm); - output_byte(0x68); - output_w32(imm); -} -void emit_pushmem(int addr) -{ - assem_debug("push *%x\n",addr); - output_byte(0xFF); - output_modrm(0,5,6); - output_w32(addr); -} -void emit_pusha() -{ - assem_debug("pusha\n"); - output_byte(0x60); -} -void emit_popa() -{ - assem_debug("popa\n"); - output_byte(0x61); -} -void emit_pushreg(u_int r) -{ - assem_debug("push %%%s\n",regname[r]); - assert(r<8); - output_byte(0x50+r); -} -void emit_popreg(u_int r) -{ - assem_debug("pop %%%s\n",regname[r]); - assert(r<8); - output_byte(0x58+r); -} -void emit_callreg(u_int r) -{ - assem_debug("call *%%%s\n",regname[r]); - assert(r<8); - output_byte(0xFF); - output_modrm(3,r,2); -} -void emit_jmpreg(u_int r) -{ - assem_debug("jmp *%%%s\n",regname[r]); - assert(r<8); - output_byte(0xFF); - output_modrm(3,r,4); -} -void emit_jmpmem_indexed(u_int addr,u_int r) -{ - assem_debug("jmp *%x(%%%s)\n",addr,regname[r]); - assert(r<8); - output_byte(0xFF); - output_modrm(2,r,4); - output_w32(addr); -} - -void emit_readword(int addr, int rt) -{ - assem_debug("mov %x,%%%s\n",addr,regname[rt]); - output_byte(0x8B); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_readword_indexed(int addr, int rs, int rt) -{ - assem_debug("mov %x+%%%s,%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x8B); - if(addr<128&&addr>=-128) { - output_modrm(1,rs,rt); - if(rs==ESP) output_sib(0,4,4); - output_byte(addr); - } - else - { - output_modrm(2,rs,rt); - if(rs==ESP) output_sib(0,4,4); - output_w32(addr); - } -} -void emit_readword_tlb(int addr, int map, int rt) -{ - if(map<0) emit_readword(addr+(int)rdram-0x80000000, rt); - else - { - assem_debug("mov (%x,%%%s,4),%%%s\n",addr+(int)rdram-0x80000000,regname[map],regname[rt]); - output_byte(0x8B); - output_modrm(0,4,rt); - output_sib(2,map,5); - output_w32(addr+(int)rdram-0x80000000); - } -} -void emit_readword_indexed_tlb(int addr, int rs, int map, int rt) -{ - if(map<0) emit_readword_indexed(addr+(int)rdram-0x80000000, rs, rt); - else { - assem_debug("mov %x(%%%s,%%%s,4),%%%s\n",addr,regname[rs],regname[map],regname[rt]); - assert(rs!=ESP); - output_byte(0x8B); - if(addr==0&&rs!=EBP) { - output_modrm(0,4,rt); - output_sib(2,map,rs); - } - else if(addr<128&&addr>=-128) { - output_modrm(1,4,rt); - output_sib(2,map,rs); - output_byte(addr); - } - else - { - output_modrm(2,4,rt); - output_sib(2,map,rs); - output_w32(addr); - } - } -} -void emit_movmem_indexedx4(int addr, int rs, int rt) -{ - assem_debug("mov (%x,%%%s,4),%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x8B); - output_modrm(0,4,rt); - output_sib(2,rs,5); - output_w32(addr); -} -void emit_readdword_tlb(int addr, int map, int rh, int rl) -{ - if(map<0) { - if(rh>=0) emit_readword(addr+(int)rdram-0x80000000, rh); - emit_readword(addr+(int)rdram-0x7FFFFFFC, rl); - } - else { - if(rh>=0) emit_movmem_indexedx4(addr+(int)rdram-0x80000000, map, rh); - emit_movmem_indexedx4(addr+(int)rdram-0x7FFFFFFC, map, rl); - } -} -void emit_readdword_indexed_tlb(int addr, int rs, int map, int rh, int rl) -{ - assert(rh!=rs); - if(rh>=0) emit_readword_indexed_tlb(addr, rs, map, rh); - emit_readword_indexed_tlb(addr+4, rs, map, rl); -} -void emit_movsbl(int addr, int rt) -{ - assem_debug("movsbl %x,%%%s\n",addr,regname[rt]); - output_byte(0x0F); - output_byte(0xBE); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_movsbl_indexed(int addr, int rs, int rt) -{ - assem_debug("movsbl %x+%%%s,%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0xBE); - output_modrm(2,rs,rt); - output_w32(addr); -} -void emit_movsbl_tlb(int addr, int map, int rt) -{ - if(map<0) emit_movsbl(addr+(int)rdram-0x80000000, rt); - else - { - assem_debug("movsbl (%x,%%%s,4),%%%s\n",addr+(int)rdram-0x80000000,regname[map],regname[rt]); - output_byte(0x0F); - output_byte(0xBE); - output_modrm(0,4,rt); - output_sib(2,map,5); - output_w32(addr+(int)rdram-0x80000000); - } -} -void emit_movsbl_indexed_tlb(int addr, int rs, int map, int rt) -{ - if(map<0) emit_movsbl_indexed(addr+(int)rdram-0x80000000, rs, rt); - else { - assem_debug("movsbl %x(%%%s,%%%s,4),%%%s\n",addr,regname[rs],regname[map],regname[rt]); - assert(rs!=ESP); - output_byte(0x0F); - output_byte(0xBE); - if(addr==0&&rs!=EBP) { - output_modrm(0,4,rt); - output_sib(2,map,rs); - } - else if(addr<128&&addr>=-128) { - output_modrm(1,4,rt); - output_sib(2,map,rs); - output_byte(addr); - } - else - { - output_modrm(2,4,rt); - output_sib(2,map,rs); - output_w32(addr); - } - } -} -void emit_movswl(int addr, int rt) -{ - assem_debug("movswl %x,%%%s\n",addr,regname[rt]); - output_byte(0x0F); - output_byte(0xBF); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_movswl_indexed(int addr, int rs, int rt) -{ - assem_debug("movswl %x+%%%s,%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0xBF); - output_modrm(2,rs,rt); - output_w32(addr); -} -void emit_movswl_tlb(int addr, int map, int rt) -{ - if(map<0) emit_movswl(addr+(int)rdram-0x80000000, rt); - else - { - assem_debug("movswl (%x,%%%s,4),%%%s\n",addr+(int)rdram-0x80000000,regname[map],regname[rt]); - output_byte(0x0F); - output_byte(0xBF); - output_modrm(0,4,rt); - output_sib(2,map,5); - output_w32(addr+(int)rdram-0x80000000); - } -} -void emit_movzbl(int addr, int rt) -{ - assem_debug("movzbl %x,%%%s\n",addr,regname[rt]); - output_byte(0x0F); - output_byte(0xB6); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_movzbl_indexed(int addr, int rs, int rt) -{ - assem_debug("movzbl %x+%%%s,%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0xB6); - output_modrm(2,rs,rt); - output_w32(addr); -} -void emit_movzbl_tlb(int addr, int map, int rt) -{ - if(map<0) emit_movzbl(addr+(int)rdram-0x80000000, rt); - else - { - assem_debug("movzbl (%x,%%%s,4),%%%s\n",addr+(int)rdram-0x80000000,regname[map],regname[rt]); - output_byte(0x0F); - output_byte(0xB6); - output_modrm(0,4,rt); - output_sib(2,map,5); - output_w32(addr+(int)rdram-0x80000000); - } -} -void emit_movzbl_indexed_tlb(int addr, int rs, int map, int rt) -{ - if(map<0) emit_movzbl_indexed(addr+(int)rdram-0x80000000, rs, rt); - else { - assem_debug("movzbl %x(%%%s,%%%s,4),%%%s\n",addr,regname[rs],regname[map],regname[rt]); - assert(rs!=ESP); - output_byte(0x0F); - output_byte(0xB6); - if(addr==0&&rs!=EBP) { - output_modrm(0,4,rt); - output_sib(2,map,rs); - } - else if(addr<128&&addr>=-128) { - output_modrm(1,4,rt); - output_sib(2,map,rs); - output_byte(addr); - } - else - { - output_modrm(2,4,rt); - output_sib(2,map,rs); - output_w32(addr); - } - } -} -void emit_movzwl(int addr, int rt) -{ - assem_debug("movzwl %x,%%%s\n",addr,regname[rt]); - output_byte(0x0F); - output_byte(0xB7); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_movzwl_indexed(int addr, int rs, int rt) -{ - assem_debug("movzwl %x+%%%s,%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x0F); - output_byte(0xB7); - output_modrm(2,rs,rt); - output_w32(addr); -} -void emit_movzwl_tlb(int addr, int map, int rt) -{ - if(map<0) emit_movzwl(addr+(int)rdram-0x80000000, rt); - else - { - assem_debug("movzwl (%x,%%%s,4),%%%s\n",addr+(int)rdram-0x80000000,regname[map],regname[rt]); - output_byte(0x0F); - output_byte(0xB7); - output_modrm(0,4,rt); - output_sib(2,map,5); - output_w32(addr+(int)rdram-0x80000000); - } -} -void emit_movzwl_reg(int rs, int rt) -{ - assem_debug("movzwl %%%s,%%%s\n",regname[rs]+1,regname[rt]); - output_byte(0x0F); - output_byte(0xB7); - output_modrm(3,rs,rt); -} - -void emit_xchg(int rs, int rt) -{ - assem_debug("xchg %%%s,%%%s\n",regname[rs],regname[rt]); - if(rs==EAX) { - output_byte(0x90+rt); - } - else - { - output_byte(0x87); - output_modrm(3,rs,rt); - } -} -void emit_writeword(int rt, int addr) -{ - assem_debug("movl %%%s,%x\n",regname[rt],addr); - output_byte(0x89); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_writeword_indexed(int rt, int addr, int rs) -{ - assem_debug("mov %%%s,%x+%%%s\n",regname[rt],addr,regname[rs]); - output_byte(0x89); - if(addr<128&&addr>=-128) { - output_modrm(1,rs,rt); - if(rs==ESP) output_sib(0,4,4); - output_byte(addr); - } - else - { - output_modrm(2,rs,rt); - if(rs==ESP) output_sib(0,4,4); - output_w32(addr); - } -} -void emit_writeword_tlb(int rt, int addr, int map) -{ - if(map<0) { - emit_writeword(rt, addr+(int)rdram-0x80000000); - } else { - emit_writeword_indexed(rt, addr+(int)rdram-0x80000000, map); - } -} -void emit_writeword_indexed_tlb(int rt, int addr, int rs, int map, int temp) -{ - if(map<0) emit_writeword_indexed(rt, addr+(int)rdram-0x80000000, rs); - else { - assem_debug("mov %%%s,%x(%%%s,%%%s,1)\n",regname[rt],addr,regname[rs],regname[map]); - assert(rs!=ESP); - output_byte(0x89); - if(addr==0&&rs!=EBP) { - output_modrm(0,4,rt); - output_sib(0,map,rs); - } - else if(addr<128&&addr>=-128) { - output_modrm(1,4,rt); - output_sib(0,map,rs); - output_byte(addr); - } - else - { - output_modrm(2,4,rt); - output_sib(0,map,rs); - output_w32(addr); - } - } -} -void emit_writedword_tlb(int rh, int rl, int addr, int map) -{ - assert(rh>=0); - if(map<0) { - emit_writeword(rh, addr+(int)rdram-0x80000000); - emit_writeword(rl, addr+(int)rdram-0x7FFFFFFC); - } - else { - emit_writeword_indexed(rh, addr+(int)rdram-0x80000000, map); - emit_writeword_indexed(rl, addr+(int)rdram-0x7FFFFFFC, map); - } -} -void emit_writedword_indexed_tlb(int rh, int rl, int addr, int rs, int map, int temp) -{ - assert(rh>=0); - emit_writeword_indexed_tlb(rh, addr, rs, map, temp); - emit_writeword_indexed_tlb(rl, addr+4, rs, map, temp); -} -void emit_writehword(int rt, int addr) -{ - assem_debug("movw %%%s,%x\n",regname[rt]+1,addr); - output_byte(0x66); - output_byte(0x89); - output_modrm(0,5,rt); - output_w32(addr); -} -void emit_writehword_indexed(int rt, int addr, int rs) -{ - assem_debug("movw %%%s,%x+%%%s\n",regname[rt]+1,addr,regname[rs]); - output_byte(0x66); - output_byte(0x89); - if(addr<128&&addr>=-128) { - output_modrm(1,rs,rt); - output_byte(addr); - } - else - { - output_modrm(2,rs,rt); - output_w32(addr); - } -} -void emit_writehword_tlb(int rt, int addr, int map) -{ - if(map<0) { - emit_writehword(rt, addr+(int)rdram-0x80000000); - } else { - emit_writehword_indexed(rt, addr+(int)rdram-0x80000000, map); - } -} -void emit_writebyte(int rt, int addr) -{ - if(rt<4) { - assem_debug("movb %%%cl,%x\n",regname[rt][1],addr); - output_byte(0x88); - output_modrm(0,5,rt); - output_w32(addr); - } - else - { - emit_xchg(EAX,rt); - emit_writebyte(EAX,addr); - emit_xchg(EAX,rt); - } -} -void emit_writebyte_indexed(int rt, int addr, int rs) -{ - if(rt<4) { - assem_debug("movb %%%cl,%x+%%%s\n",regname[rt][1],addr,regname[rs]); - output_byte(0x88); - if(addr<128&&addr>=-128) { - output_modrm(1,rs,rt); - output_byte(addr); - } - else - { - output_modrm(2,rs,rt); - output_w32(addr); - } - } - else - { - emit_xchg(EAX,rt); - emit_writebyte_indexed(EAX,addr,rs==EAX?rt:rs); - emit_xchg(EAX,rt); - } -} -void emit_writebyte_tlb(int rt, int addr, int map) -{ - if(map<0) { - emit_writebyte(rt, addr+(int)rdram-0x80000000); - } else { - emit_writebyte_indexed(rt, addr+(int)rdram-0x80000000, map); - } -} -void emit_writebyte_indexed_tlb(int rt, int addr, int rs, int map, int temp) -{ - if(map<0) emit_writebyte_indexed(rt, addr+(int)rdram-0x80000000, rs); - else - if(rt<4) { - assem_debug("movb %%%cl,%x(%%%s,%%%s,1)\n",regname[rt][1],addr,regname[rs],regname[map]); - assert(rs!=ESP); - output_byte(0x88); - if(addr==0&&rs!=EBP) { - output_modrm(0,4,rt); - output_sib(0,map,rs); - } - else if(addr<128&&addr>=-128) { - output_modrm(1,4,rt); - output_sib(0,map,rs); - output_byte(addr); - } - else - { - output_modrm(2,4,rt); - output_sib(0,map,rs); - output_w32(addr); - } - } - else - { - emit_xchg(EAX,rt); - emit_writebyte_indexed_tlb(EAX,addr,rs==EAX?rt:rs,map==EAX?rt:map,temp); - emit_xchg(EAX,rt); - } -} -void emit_writeword_imm(int imm, int addr) -{ - assem_debug("movl $%x,%x\n",imm,addr); - output_byte(0xC7); - output_modrm(0,5,0); - output_w32(addr); - output_w32(imm); -} -void emit_writeword_imm_esp(int imm, int addr) -{ - assem_debug("mov $%x,%x(%%esp)\n",imm,addr); - assert(addr>=-128&&addr<128); - output_byte(0xC7); - output_modrm(1,4,0); - output_sib(0,4,4); - output_byte(addr); - output_w32(imm); -} -void emit_writebyte_imm(int imm, int addr) -{ - assem_debug("movb $%x,%x\n",imm,addr); - assert(imm>=-128&&imm<128); - output_byte(0xC6); - output_modrm(0,5,0); - output_w32(addr); - output_byte(imm); -} -void emit_writebyte_imm_esp(int imm, int addr) -{ - assem_debug("movb $%x,%x(%%esp)\n",imm,addr); - assert(addr>=-128&&addr<128); - output_byte(0xC6); - output_modrm(1,4,0); - output_sib(0,4,4); - output_byte(addr); - output_byte(imm); -} - -void emit_mul(int rs) -{ - assem_debug("mul %%%s\n",regname[rs]); - output_byte(0xF7); - output_modrm(3,rs,4); -} -void emit_imul(int rs) -{ - assem_debug("imul %%%s\n",regname[rs]); - output_byte(0xF7); - output_modrm(3,rs,5); -} -void emit_div(int rs) -{ - assem_debug("div %%%s\n",regname[rs]); - output_byte(0xF7); - output_modrm(3,rs,6); -} -void emit_idiv(int rs) -{ - assem_debug("idiv %%%s\n",regname[rs]); - output_byte(0xF7); - output_modrm(3,rs,7); -} -void emit_cdq() -{ - assem_debug("cdq\n"); - output_byte(0x99); -} - -// Load 2 immediates optimizing for small code size -void emit_mov2imm_compact(int imm1,u_int rt1,int imm2,u_int rt2) -{ - emit_movimm(imm1,rt1); - if(imm2-imm1<128&&imm2-imm1>=-128) emit_addimm(rt1,imm2-imm1,rt2); - else emit_movimm(imm2,rt2); -} - -// special case for checking pending_exception -void emit_cmpmem_imm_byte(int addr,int imm) -{ - assert(imm<128&&imm>=-127); - assem_debug("cmpb $%d,%x\n",imm,addr); - output_byte(0x80); - output_modrm(0,5,7); - output_w32(addr); - output_byte(imm); -} - -// special case for checking invalid_code -void emit_cmpmem_indexedsr12_imm(int addr,int r,int imm) -{ - assert(imm<128&&imm>=-127); - assert(r>=0&&r<8); - emit_shrimm(r,12,r); - assem_debug("cmp $%d,%x+%%%s\n",imm,addr,regname[r]); - output_byte(0x80); - output_modrm(2,r,7); - output_w32(addr); - output_byte(imm); -} - -// special case for checking hash_table -void emit_cmpmem_indexed(int addr,int rs,int rt) -{ - assert(rs>=0&&rs<8); - assert(rt>=0&&rt<8); - assem_debug("cmp %x+%%%s,%%%s\n",addr,regname[rs],regname[rt]); - output_byte(0x39); - output_modrm(2,rs,rt); - output_w32(addr); -} - -// special case for checking memory_map in verify_mapping -void emit_cmpmem(int addr,int rt) -{ - assert(rt>=0&&rt<8); - assem_debug("cmp %x,%%%s\n",addr,regname[rt]); - output_byte(0x39); - output_modrm(0,5,rt); - output_w32(addr); -} - -// Used to preload hash table entries -void emit_prefetch(void *addr) -{ - assem_debug("prefetch %x\n",(int)addr); - output_byte(0x0F); - output_byte(0x18); - output_modrm(0,5,1); - output_w32((int)addr); -} - -/*void emit_submem(int r,int addr) -{ - assert(r>=0&&r<8); - assem_debug("sub %x,%%%s\n",addr,regname[r]); - output_byte(0x2B); - output_modrm(0,5,r); - output_w32((int)addr); -}*/ -void emit_subfrommem(int addr,int r) -{ - assert(r>=0&&r<8); - assem_debug("sub %%%s,%x\n",regname[r],addr); - output_byte(0x29); - output_modrm(0,5,r); - output_w32((int)addr); -} - -void emit_flds(int r) -{ - assem_debug("flds (%%%s)\n",regname[r]); - output_byte(0xd9); - if(r!=EBP) output_modrm(0,r,0); - else {output_modrm(1,EBP,0);output_byte(0);} -} -void emit_fldl(int r) -{ - assem_debug("fldl (%%%s)\n",regname[r]); - output_byte(0xdd); - if(r!=EBP) output_modrm(0,r,0); - else {output_modrm(1,EBP,0);output_byte(0);} -} -void emit_fucomip(u_int r) -{ - assem_debug("fucomip %d\n",r); - assert(r<8); - output_byte(0xdf); - output_byte(0xe8+r); -} -void emit_fchs() -{ - assem_debug("fchs\n"); - output_byte(0xd9); - output_byte(0xe0); -} -void emit_fabs() -{ - assem_debug("fabs\n"); - output_byte(0xd9); - output_byte(0xe1); -} -void emit_fsqrt() -{ - assem_debug("fsqrt\n"); - output_byte(0xd9); - output_byte(0xfa); -} -void emit_fadds(int r) -{ - assem_debug("fadds (%%%s)\n",regname[r]); - output_byte(0xd8); - if(r!=EBP) output_modrm(0,r,0); - else {output_modrm(1,EBP,0);output_byte(0);} -} -void emit_faddl(int r) -{ - assem_debug("faddl (%%%s)\n",regname[r]); - output_byte(0xdc); - if(r!=EBP) output_modrm(0,r,0); - else {output_modrm(1,EBP,0);output_byte(0);} -} -void emit_fadd(int r) -{ - assem_debug("fadd st%d\n",r); - output_byte(0xd8); - output_byte(0xc0+r); -} -void emit_fsubs(int r) -{ - assem_debug("fsubs (%%%s)\n",regname[r]); - output_byte(0xd8); - if(r!=EBP) output_modrm(0,r,4); - else {output_modrm(1,EBP,4);output_byte(0);} -} -void emit_fsubl(int r) -{ - assem_debug("fsubl (%%%s)\n",regname[r]); - output_byte(0xdc); - if(r!=EBP) output_modrm(0,r,4); - else {output_modrm(1,EBP,4);output_byte(0);} -} -void emit_fsub(int r) -{ - assem_debug("fsub st%d\n",r); - output_byte(0xd8); - output_byte(0xe0+r); -} -void emit_fmuls(int r) -{ - assem_debug("fmuls (%%%s)\n",regname[r]); - output_byte(0xd8); - if(r!=EBP) output_modrm(0,r,1); - else {output_modrm(1,EBP,1);output_byte(0);} -} -void emit_fmull(int r) -{ - assem_debug("fmull (%%%s)\n",regname[r]); - output_byte(0xdc); - if(r!=EBP) output_modrm(0,r,1); - else {output_modrm(1,EBP,1);output_byte(0);} -} -void emit_fmul(int r) -{ - assem_debug("fmul st%d\n",r); - output_byte(0xd8); - output_byte(0xc8+r); -} -void emit_fdivs(int r) -{ - assem_debug("fdivs (%%%s)\n",regname[r]); - output_byte(0xd8); - if(r!=EBP) output_modrm(0,r,6); - else {output_modrm(1,EBP,6);output_byte(0);} -} -void emit_fdivl(int r) -{ - assem_debug("fdivl (%%%s)\n",regname[r]); - output_byte(0xdc); - if(r!=EBP) output_modrm(0,r,6); - else {output_modrm(1,EBP,6);output_byte(0);} -} -void emit_fdiv(int r) -{ - assem_debug("fdiv st%d\n",r); - output_byte(0xd8); - output_byte(0xf0+r); -} -void emit_fpop() -{ - // fstp st(0) - assem_debug("fpop\n"); - output_byte(0xdd); - output_byte(0xd8); -} -void emit_fildl(int r) -{ - assem_debug("fildl (%%%s)\n",regname[r]); - output_byte(0xdb); - if(r!=EBP) output_modrm(0,r,0); - else {output_modrm(1,EBP,0);output_byte(0);} -} -void emit_fildll(int r) -{ - assem_debug("fildll (%%%s)\n",regname[r]); - output_byte(0xdf); - if(r!=EBP) output_modrm(0,r,5); - else {output_modrm(1,EBP,5);output_byte(0);} -} -void emit_fistpl(int r) -{ - assem_debug("fistpl (%%%s)\n",regname[r]); - output_byte(0xdb); - if(r!=EBP) output_modrm(0,r,3); - else {output_modrm(1,EBP,3);output_byte(0);} -} -void emit_fistpll(int r) -{ - assem_debug("fistpll (%%%s)\n",regname[r]); - output_byte(0xdf); - if(r!=EBP) output_modrm(0,r,7); - else {output_modrm(1,EBP,7);output_byte(0);} -} -void emit_fstps(int r) -{ - assem_debug("fstps (%%%s)\n",regname[r]); - output_byte(0xd9); - if(r!=EBP) output_modrm(0,r,3); - else {output_modrm(1,EBP,3);output_byte(0);} -} -void emit_fstpl(int r) -{ - assem_debug("fstpl (%%%s)\n",regname[r]); - output_byte(0xdd); - if(r!=EBP) output_modrm(0,r,3); - else {output_modrm(1,EBP,3);output_byte(0);} -} -void emit_fnstcw_stack() -{ - assem_debug("fnstcw (%%esp)\n"); - output_byte(0xd9); - output_modrm(0,4,7); - output_sib(0,4,4); -} -void emit_fldcw_stack() -{ - assem_debug("fldcw (%%esp)\n"); - output_byte(0xd9); - output_modrm(0,4,5); - output_sib(0,4,4); -} -void emit_fldcw_indexed(int addr,int r) -{ - assem_debug("fldcw %x(%%%s)\n",addr,regname[r]); - output_byte(0xd9); - output_modrm(0,4,5); - output_sib(1,r,5); - output_w32(addr); -} -void emit_fldcw(int addr) -{ - assem_debug("fldcw %x\n",addr); - output_byte(0xd9); - output_modrm(0,5,5); - output_w32(addr); -} -void emit_movss_load(u_int addr,u_int ssereg) -{ - assem_debug("movss (%%%s),xmm%d\n",regname[addr],ssereg); - assert(ssereg<8); - output_byte(0xf3); - output_byte(0x0f); - output_byte(0x10); - if(addr!=EBP) output_modrm(0,addr,ssereg); - else {output_modrm(1,EBP,ssereg);output_byte(0);} -} -void emit_movsd_load(u_int addr,u_int ssereg) -{ - assem_debug("movsd (%%%s),xmm%d\n",regname[addr],ssereg); - assert(ssereg<8); - output_byte(0xf2); - output_byte(0x0f); - output_byte(0x10); - if(addr!=EBP) output_modrm(0,addr,ssereg); - else {output_modrm(1,EBP,ssereg);output_byte(0);} -} -void emit_movd_store(u_int ssereg,u_int addr) -{ - assem_debug("movd xmm%d,(%%%s)\n",ssereg,regname[addr]); - assert(ssereg<8); - output_byte(0x66); - output_byte(0x0f); - output_byte(0x7e); - if(addr!=EBP) output_modrm(0,addr,ssereg); - else {output_modrm(1,EBP,ssereg);output_byte(0);} -} -void emit_cvttps2dq(u_int ssereg1,u_int ssereg2) -{ - assem_debug("cvttps2dq xmm%d,xmm%d\n",ssereg1,ssereg2); - assert(ssereg1<8); - assert(ssereg2<8); - output_byte(0xf3); - output_byte(0x0f); - output_byte(0x5b); - output_modrm(3,ssereg1,ssereg2); -} -void emit_cvttpd2dq(u_int ssereg1,u_int ssereg2) -{ - assem_debug("cvttpd2dq xmm%d,xmm%d\n",ssereg1,ssereg2); - assert(ssereg1<8); - assert(ssereg2<8); - output_byte(0x66); - output_byte(0x0f); - output_byte(0xe6); - output_modrm(3,ssereg1,ssereg2); -} - -/* Stubs/epilogue */ - -emit_extjump2(int addr, int target, int linker) -{ - u_char *ptr=(u_char *)addr; - if(*ptr==0x0f) - { - assert(ptr[1]>=0x80&&ptr[1]<=0x8f); - addr+=2; - } - else - { - assert(*ptr==0xe8||*ptr==0xe9); - addr++; - } - emit_movimm(target,EAX); - emit_movimm(addr,EBX); - //assert(addr>=0x7000000&&addr<0x7FFFFFF); - //assert((target>=0x80000000&&target<0x80800000)||(target>0xA4000000&&target<0xA4001000)); -//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_jmp(linker); -} - -emit_extjump(int addr, int target) -{ - emit_extjump2(addr, target, (int)dyna_linker); -} -emit_extjump_ds(int addr, int target) -{ - emit_extjump2(addr, target, (int)dyna_linker_ds); -} - -do_readstub(int n) -{ - assem_debug("do_readstub %x\n",start+stubs[n][3]*4); - set_jump_target(stubs[n][1],(int)out); - int type=stubs[n][0]; - int i=stubs[n][3]; - int rs=stubs[n][4]; - struct regstat *i_regs=(struct regstat *)stubs[n][5]; - signed char *i_regmap=i_regs->regmap; - int addr=get_reg(i_regmap,AGEN1+(i&1)); - int rth,rt; - int ds; - if(itype[i]==C1LS||itype[i]==LOADLR) { - rth=get_reg(i_regmap,FTEMP|64); - rt=get_reg(i_regmap,FTEMP); - }else{ - rth=get_reg(i_regmap,rt1[i]|64); - rt=get_reg(i_regmap,rt1[i]); - } - assert(rs>=0); - assert(rt>=0); - if(addr<0) addr=rt; - assert(addr>=0); - int ftable=0; - if(type==LOADB_STUB||type==LOADBU_STUB) - ftable=(int)readmemb; - if(type==LOADH_STUB||type==LOADHU_STUB) - ftable=(int)readmemh; - if(type==LOADW_STUB) - ftable=(int)readmem; - if(type==LOADD_STUB) - ftable=(int)readmemd; - emit_writeword(rs,(int)&address); - emit_shrimm(rs,16,addr); - emit_movmem_indexedx4(ftable,addr,addr); - emit_pusha(); - ds=i_regs!=®s[i]; - int real_rs=(itype[i]==LOADLR)?-1:get_reg(i_regmap,rs1[i]); - if(!ds) load_all_consts(regs[i].regmap_entry,regs[i].was32,regs[i].wasdirty&~(1<<addr)&(real_rs<0?-1:~(1<<real_rs)),i); - wb_dirtys(i_regs->regmap_entry,i_regs->was32,i_regs->wasdirty&~(1<<addr)&(real_rs<0?-1:~(1<<real_rs))); - - int temp; - int cc=get_reg(i_regmap,CCREG); - if(cc<0) { - if(addr==HOST_CCREG) - { - cc=0;temp=1; - assert(cc!=HOST_CCREG); - assert(temp!=HOST_CCREG); - emit_loadreg(CCREG,cc); - } - else - { - cc=HOST_CCREG; - emit_loadreg(CCREG,cc); - temp=!addr; - } - } - else - { - temp=!addr; - } - emit_readword((int)&last_count,temp); - emit_addimm(cc,CLOCK_DIVIDER*(stubs[n][6]+1),cc); - emit_writeword_imm_esp(start+i*4+(((regs[i].was32>>rs1[i])&1)<<1)+ds,32); - emit_add(cc,temp,cc); - emit_writeword(cc,(int)&Count); - emit_callreg(addr); - // We really shouldn't need to update the count here, - // but not doing so causes random crashes... - emit_readword((int)&Count,HOST_CCREG); - emit_readword((int)&next_interupt,ECX); - emit_addimm(HOST_CCREG,-CLOCK_DIVIDER*(stubs[n][6]+1),HOST_CCREG); - emit_sub(HOST_CCREG,ECX,HOST_CCREG); - emit_writeword(ECX,(int)&last_count); - emit_storereg(CCREG,HOST_CCREG); - emit_popa(); - if((cc=get_reg(i_regmap,CCREG))>=0) { - emit_loadreg(CCREG,cc); - } - if(type==LOADB_STUB) - emit_movsbl((int)&readmem_dword,rt); - if(type==LOADBU_STUB) - emit_movzbl((int)&readmem_dword,rt); - if(type==LOADH_STUB) - emit_movswl((int)&readmem_dword,rt); - if(type==LOADHU_STUB) - emit_movzwl((int)&readmem_dword,rt); - if(type==LOADW_STUB) - emit_readword((int)&readmem_dword,rt); - if(type==LOADD_STUB) { - emit_readword((int)&readmem_dword,rt); - if(rth>=0) emit_readword(((int)&readmem_dword)+4,rth); - } - emit_jmp(stubs[n][2]); // return address -} - -inline_readstub(int type, int i, u_int addr, signed char regmap[], int target, int adj, u_int reglist) -{ - assem_debug("inline_readstub\n"); - int rs=get_reg(regmap,target); - int rth=get_reg(regmap,target|64); - int rt=get_reg(regmap,target); - assert(rs>=0); - assert(rt>=0); - int ftable=0; - if(type==LOADB_STUB||type==LOADBU_STUB) - ftable=(int)readmemb; - if(type==LOADH_STUB||type==LOADHU_STUB) - ftable=(int)readmemh; - if(type==LOADW_STUB) - ftable=(int)readmem; - if(type==LOADD_STUB) - ftable=(int)readmemd; - #ifdef HOST_IMM_ADDR32 - emit_writeword_imm(addr,(int)&address); - #else - emit_writeword(rs,(int)&address); - #endif - emit_pusha(); - int cc=get_reg(regmap,CCREG); - int temp; - if(cc<0) { - if(rs==HOST_CCREG) - { - cc=0;temp=1; - assert(cc!=HOST_CCREG); - assert(temp!=HOST_CCREG); - emit_loadreg(CCREG,cc); - } - else - { - cc=HOST_CCREG; - emit_loadreg(CCREG,cc); - temp=!rs; - } - } - else - { - temp=!rs; - } - emit_readword((int)&last_count,temp); - emit_addimm(cc,CLOCK_DIVIDER*(adj+1),cc); - emit_add(cc,temp,cc); - emit_writeword(cc,(int)&Count); - if((signed int)addr>=(signed int)0xC0000000) { - // Pagefault address - int ds=regmap!=regs[i].regmap; - emit_writeword_imm_esp(start+i*4+(((regs[i].was32>>rs1[i])&1)<<1)+ds,32); - } - emit_call(((u_int *)ftable)[addr>>16]); - // We really shouldn't need to update the count here, - // but not doing so causes random crashes... - emit_readword((int)&Count,HOST_CCREG); - emit_readword((int)&next_interupt,ECX); - emit_addimm(HOST_CCREG,-CLOCK_DIVIDER*(adj+1),HOST_CCREG); - emit_sub(HOST_CCREG,ECX,HOST_CCREG); - emit_writeword(ECX,(int)&last_count); - emit_storereg(CCREG,HOST_CCREG); - emit_popa(); - if((cc=get_reg(regmap,CCREG))>=0) { - emit_loadreg(CCREG,cc); - } - if(type==LOADB_STUB) - emit_movsbl((int)&readmem_dword,rt); - if(type==LOADBU_STUB) - emit_movzbl((int)&readmem_dword,rt); - if(type==LOADH_STUB) - emit_movswl((int)&readmem_dword,rt); - if(type==LOADHU_STUB) - emit_movzwl((int)&readmem_dword,rt); - if(type==LOADW_STUB) - emit_readword((int)&readmem_dword,rt); - if(type==LOADD_STUB) { - emit_readword((int)&readmem_dword,rt); - if(rth>=0) emit_readword(((int)&readmem_dword)+4,rth); - } -} - -do_writestub(int n) -{ - assem_debug("do_writestub %x\n",start+stubs[n][3]*4); - set_jump_target(stubs[n][1],(int)out); - int type=stubs[n][0]; - int i=stubs[n][3]; - int rs=stubs[n][4]; - struct regstat *i_regs=(struct regstat *)stubs[n][5]; - signed char *i_regmap=i_regs->regmap; - int addr=get_reg(i_regmap,AGEN1+(i&1)); - int rth,rt,r; - int ds; - if(itype[i]==C1LS) { - rth=get_reg(i_regmap,FTEMP|64); - rt=get_reg(i_regmap,r=FTEMP); - }else{ - rth=get_reg(i_regmap,rs2[i]|64); - rt=get_reg(i_regmap,r=rs2[i]); - } - assert(rs>=0); - assert(rt>=0); - if(addr<0) addr=get_reg(i_regmap,-1); - assert(addr>=0); - int ftable=0; - if(type==STOREB_STUB) - ftable=(int)writememb; - if(type==STOREH_STUB) - ftable=(int)writememh; - if(type==STOREW_STUB) - ftable=(int)writemem; - if(type==STORED_STUB) - ftable=(int)writememd; - emit_writeword(rs,(int)&address); - emit_shrimm(rs,16,addr); - emit_movmem_indexedx4(ftable,addr,addr); - if(type==STOREB_STUB) - emit_writebyte(rt,(int)&byte); - if(type==STOREH_STUB) - emit_writehword(rt,(int)&hword); - if(type==STOREW_STUB) - emit_writeword(rt,(int)&word); - if(type==STORED_STUB) { - emit_writeword(rt,(int)&dword); - emit_writeword(r?rth:rt,(int)&dword+4); - } - emit_pusha(); - ds=i_regs!=®s[i]; - int real_rs=get_reg(i_regmap,rs1[i]); - if(!ds) load_all_consts(regs[i].regmap_entry,regs[i].was32,regs[i].wasdirty&~(1<<addr)&(real_rs<0?-1:~(1<<real_rs)),i); - wb_dirtys(i_regs->regmap_entry,i_regs->was32,i_regs->wasdirty&~(1<<addr)&(real_rs<0?-1:~(1<<real_rs))); - - int temp; - int cc=get_reg(i_regmap,CCREG); - if(cc<0) { - if(addr==HOST_CCREG) - { - cc=0;temp=1; - assert(cc!=HOST_CCREG); - assert(temp!=HOST_CCREG); - emit_loadreg(CCREG,cc); - } - else - { - cc=HOST_CCREG; - emit_loadreg(CCREG,cc); - temp=!addr; - } - } - else - { - temp=!addr; - } - emit_readword((int)&last_count,temp); - emit_addimm(cc,CLOCK_DIVIDER*(stubs[n][6]+1),cc); - emit_writeword_imm_esp(start+i*4+(((regs[i].was32>>rs1[i])&1)<<1)+ds,32); - emit_add(cc,temp,cc); - emit_writeword(cc,(int)&Count); - emit_callreg(addr); - emit_readword((int)&Count,HOST_CCREG); - emit_readword((int)&next_interupt,ECX); - emit_addimm(HOST_CCREG,-CLOCK_DIVIDER*(stubs[n][6]+1),HOST_CCREG); - emit_sub(HOST_CCREG,ECX,HOST_CCREG); - emit_writeword(ECX,(int)&last_count); - emit_storereg(CCREG,HOST_CCREG); - emit_popa(); - if((cc=get_reg(i_regmap,CCREG))>=0) { - emit_loadreg(CCREG,cc); - } - emit_jmp(stubs[n][2]); // return address -} - -inline_writestub(int type, int i, u_int addr, signed char regmap[], int target, int adj, u_int reglist) -{ - assem_debug("inline_writestub\n"); - int rs=get_reg(regmap,-1); - int rth=get_reg(regmap,target|64); - int rt=get_reg(regmap,target); - assert(rs>=0); - assert(rt>=0); - int ftable=0; - if(type==STOREB_STUB) - ftable=(int)writememb; - if(type==STOREH_STUB) - ftable=(int)writememh; - if(type==STOREW_STUB) - ftable=(int)writemem; - if(type==STORED_STUB) - ftable=(int)writememd; - emit_writeword(rs,(int)&address); - if(type==STOREB_STUB) - emit_writebyte(rt,(int)&byte); - if(type==STOREH_STUB) - emit_writehword(rt,(int)&hword); - if(type==STOREW_STUB) - emit_writeword(rt,(int)&word); - if(type==STORED_STUB) { - emit_writeword(rt,(int)&dword); - emit_writeword(target?rth:rt,(int)&dword+4); - } - emit_pusha(); - int cc=get_reg(regmap,CCREG); - int temp; - if(cc<0) { - if(rs==HOST_CCREG) - { - cc=0;temp=1; - assert(cc!=HOST_CCREG); - assert(temp!=HOST_CCREG); - emit_loadreg(CCREG,cc); - } - else - { - cc=HOST_CCREG; - emit_loadreg(CCREG,cc); - temp=!rs; - } - } - else - { - temp=!rs; - } - emit_readword((int)&last_count,temp); - emit_addimm(cc,CLOCK_DIVIDER*(adj+1),cc); - emit_add(cc,temp,cc); - emit_writeword(cc,(int)&Count); - if((signed int)addr>=(signed int)0xC0000000) { - // Pagefault address - int ds=regmap!=regs[i].regmap; - emit_writeword_imm_esp(start+i*4+(((regs[i].was32>>rs1[i])&1)<<1)+ds,32); - } - emit_call(((u_int *)ftable)[addr>>16]); - emit_readword((int)&Count,HOST_CCREG); - emit_readword((int)&next_interupt,ECX); - emit_addimm(HOST_CCREG,-CLOCK_DIVIDER*(adj+1),HOST_CCREG); - emit_sub(HOST_CCREG,ECX,HOST_CCREG); - emit_writeword(ECX,(int)&last_count); - emit_storereg(CCREG,HOST_CCREG); - emit_popa(); - if((cc=get_reg(regmap,CCREG))>=0) { - emit_loadreg(CCREG,cc); - } -} - -do_unalignedwritestub(int n) -{ - set_jump_target(stubs[n][1],(int)out); - output_byte(0xCC); - emit_jmp(stubs[n][2]); // return address -} - -void printregs(int edi,int esi,int ebp,int esp,int b,int d,int c,int a) -{ - printf("regs: %x %x %x %x %x %x %x (%x)\n",a,b,c,d,ebp,esi,edi,(&edi)[-1]); -} - -do_invstub(int n) -{ - set_jump_target(stubs[n][1],(int)out); - if(stubs[n][4]!=EDI) emit_xchg(stubs[n][4],EDI); - emit_pusha(); - emit_call((int)&invalidate_block); - emit_popa(); - if(stubs[n][4]!=EDI) emit_xchg(stubs[n][4],EDI); - emit_jmp(stubs[n][2]); // return address -} - -int do_dirty_stub(int i) -{ - assem_debug("do_dirty_stub %x\n",start+i*4); - emit_pushimm(start+i*4); - emit_movimm((int)start<(int)0xC0000000?(int)source:(int)start,EAX); - emit_movimm((int)copy,EBX); - emit_movimm(slen*4,ECX); - emit_call((int)start<(int)0xC0000000?(int)&verify_code:(int)&verify_code_vm); - emit_addimm(ESP,4,ESP); - int entry=(int)out; - load_regs_entry(i); - if(entry==(int)out) entry=instr_addr[i]; - emit_jmp(instr_addr[i]); - return entry; -} - -void do_dirty_stub_ds() -{ - emit_pushimm(start+1); - emit_movimm((int)start<(int)0xC0000000?(int)source:(int)start,EAX); - emit_movimm((int)copy,EBX); - emit_movimm(slen*4,ECX); - emit_call((int)&verify_code_ds); - emit_addimm(ESP,4,ESP); -} - -do_cop1stub(int n) -{ - assem_debug("do_cop1stub %x\n",start+stubs[n][3]*4); - set_jump_target(stubs[n][1],(int)out); - int i=stubs[n][3]; - int rs=stubs[n][4]; - struct regstat *i_regs=(struct regstat *)stubs[n][5]; - int ds=stubs[n][6]; - if(!ds) { - load_all_consts(regs[i].regmap_entry,regs[i].was32,regs[i].wasdirty,i); - //if(i_regs!=®s[i]) printf("oops: regs[i]=%x i_regs=%x",(int)®s[i],(int)i_regs); - } - //else {printf("fp exception in delay slot\n");} - wb_dirtys(i_regs->regmap_entry,i_regs->was32,i_regs->wasdirty); - if(regs[i].regmap_entry[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG); - emit_movimm(start+(i-ds)*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(ds?(int)fp_exception_ds:(int)fp_exception); -} - -/* TLB */ - -int do_tlb_r(int s,int ar,int map,int x,int a,int shift,int c,u_int addr) -{ - if(c) { - if((signed int)addr>=(signed int)0xC0000000) { - emit_readword((int)(memory_map+(addr>>12)),map); - } - else - return -1; // No mapping - } - else { - if(s!=map) emit_mov(s,map); - emit_shrimm(map,12,map); - // Schedule this while we wait on the load - //if(x) emit_xorimm(addr,x,addr); - if(shift>=0) emit_lea8(s,shift); - if(~a) emit_andimm(s,a,ar); - emit_movmem_indexedx4((int)memory_map,map,map); - } - return map; -} -int do_tlb_r_branch(int map, int c, u_int addr, int *jaddr) -{ - if(!c||(signed int)addr>=(signed int)0xC0000000) { - emit_test(map,map); - *jaddr=(int)out; - emit_js(0); - } - return map; -} - -int gen_tlb_addr_r(int ar, int map) { - if(map>=0) { - emit_leairrx4(0,ar,map,ar); - } -} - -int do_tlb_w(int s,int ar,int map,int x,int c,u_int addr) -{ - if(c) { - if(addr<0x80800000||addr>=0xC0000000) { - emit_readword((int)(memory_map+(addr>>12)),map); - } - else - return -1; // No mapping - } - else { - if(s!=map) emit_mov(s,map); - //if(s!=ar) emit_mov(s,ar); - emit_shrimm(map,12,map); - // Schedule this while we wait on the load - //if(x) emit_xorimm(s,x,addr); - emit_movmem_indexedx4((int)memory_map,map,map); - } - emit_shlimm(map,2,map); - return map; -} -int do_tlb_w_branch(int map, int c, u_int addr, int *jaddr) -{ - if(!c||addr<0x80800000||addr>=0xC0000000) { - *jaddr=(int)out; - emit_jc(0); - } -} - -int gen_tlb_addr_w(int ar, int map) { - if(map>=0) { - emit_leairrx1(0,ar,map,ar); - } -} - -// We don't need this for x86 -generate_map_const(u_int addr,int reg) { - // void *mapaddr=memory_map+(addr>>12); -} - -/* Special assem */ - -void shift_assemble_x86(int i,struct regstat *i_regs) -{ - if(rt1[i]) { - if(opcode2[i]<=0x07) // SLLV/SRLV/SRAV - { - char s,t,shift; - t=get_reg(i_regs->regmap,rt1[i]); - s=get_reg(i_regs->regmap,rs1[i]); - shift=get_reg(i_regs->regmap,rs2[i]); - if(t>=0){ - if(rs1[i]==0) - { - emit_zeroreg(t); - } - else if(rs2[i]==0) - { - assert(s>=0); - if(s!=t) emit_mov(s,t); - } - else - { - char temp=get_reg(i_regs->regmap,-1); - assert(s>=0); - if(t==ECX&&s!=ECX) { - if(shift!=ECX) emit_mov(shift,ECX); - if(rt1[i]==rs2[i]) {shift=temp;} - if(s!=shift) emit_mov(s,shift); - } - else - { - if(rt1[i]==rs2[i]) {emit_mov(shift,temp);shift=temp;} - if(s!=t) emit_mov(s,t); - if(shift!=ECX) { - if(i_regs->regmap[ECX]<0) - emit_mov(shift,ECX); - else - emit_xchg(shift,ECX); - } - } - if(opcode2[i]==4) // SLLV - { - emit_shlcl(t==ECX?shift:t); - } - if(opcode2[i]==6) // SRLV - { - emit_shrcl(t==ECX?shift:t); - } - if(opcode2[i]==7) // SRAV - { - emit_sarcl(t==ECX?shift:t); - } - if(shift!=ECX&&i_regs->regmap[ECX]>=0) emit_xchg(shift,ECX); - } - } - } else { // DSLLV/DSRLV/DSRAV - char sh,sl,th,tl,shift; - 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]); - shift=get_reg(i_regs->regmap,rs2[i]); - if(tl>=0){ - if(rs1[i]==0) - { - emit_zeroreg(tl); - if(th>=0) emit_zeroreg(th); - } - else if(rs2[i]==0) - { - assert(sl>=0); - if(sl!=tl) emit_mov(sl,tl); - if(th>=0&&sh!=th) emit_mov(sh,th); - } - else - { - // FIXME: What if shift==tl ? - assert(shift!=tl); - int temp=get_reg(i_regs->regmap,-1); - int real_th=th; - if(th<0&&opcode2[i]!=0x14) {th=temp;} // DSLLV doesn't need a temporary register - assert(sl>=0); - assert(sh>=0); - if(tl==ECX&&sl!=ECX) { - if(shift!=ECX) emit_mov(shift,ECX); - if(sl!=shift) emit_mov(sl,shift); - if(th>=0 && sh!=th) emit_mov(sh,th); - } - else if(th==ECX&&sh!=ECX) { - if(shift!=ECX) emit_mov(shift,ECX); - if(sh!=shift) emit_mov(sh,shift); - if(sl!=tl) emit_mov(sl,tl); - } - else - { - if(sl!=tl) emit_mov(sl,tl); - if(th>=0 && sh!=th) emit_mov(sh,th); - if(shift!=ECX) { - if(i_regs->regmap[ECX]<0) - emit_mov(shift,ECX); - else - emit_xchg(shift,ECX); - } - } - if(opcode2[i]==0x14) // DSLLV - { - if(th>=0) emit_shldcl(th==ECX?shift:th,tl==ECX?shift:tl); - emit_shlcl(tl==ECX?shift:tl); - emit_testimm(ECX,32); - if(th>=0) emit_cmovne_reg(tl==ECX?shift:tl,th==ECX?shift:th); - emit_cmovne(&const_zero,tl==ECX?shift:tl); - } - if(opcode2[i]==0x16) // DSRLV - { - assert(th>=0); - emit_shrdcl(tl==ECX?shift:tl,th==ECX?shift:th); - emit_shrcl(th==ECX?shift:th); - emit_testimm(ECX,32); - emit_cmovne_reg(th==ECX?shift:th,tl==ECX?shift:tl); - if(real_th>=0) emit_cmovne(&const_zero,th==ECX?shift:th); - } - if(opcode2[i]==0x17) // DSRAV - { - assert(th>=0); - emit_shrdcl(tl==ECX?shift:tl,th==ECX?shift:th); - if(real_th>=0) { - assert(temp>=0); - emit_mov(th==ECX?shift:th,temp==ECX?shift:temp); - } - emit_sarcl(th==ECX?shift:th); - if(real_th>=0) emit_sarimm(temp==ECX?shift:temp,31,temp==ECX?shift:temp); - emit_testimm(ECX,32); - emit_cmovne_reg(th==ECX?shift:th,tl==ECX?shift:tl); - if(real_th>=0) emit_cmovne_reg(temp==ECX?shift:temp,th==ECX?shift:th); - } - if(shift!=ECX&&(i_regs->regmap[ECX]>=0||temp==ECX)) emit_xchg(shift,ECX); - } - } - } - } -} -#define shift_assemble shift_assemble_x86 - -void loadlr_assemble_x86(int i,struct regstat *i_regs) -{ - int s,th,tl,temp,temp2,addr,map=-1; - int offset; - int jaddr=0; - int memtarget,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]); - temp=get_reg(i_regs->regmap,-1); - temp2=get_reg(i_regs->regmap,FTEMP); - addr=get_reg(i_regs->regmap,AGEN1+(i&1)); - assert(addr<0); - offset=imm[i]; - for(hr=0;hr<HOST_REGS;hr++) { - if(i_regs->regmap[hr]>=0) reglist|=1<<hr; - } - reglist|=1<<temp; - if(offset||s<0||c) addr=temp2; - else addr=s; - if(s>=0) { - c=(i_regs->wasconst>>s)&1; - memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80800000; - if(using_tlb&&((signed int)(constmap[i][s]+offset))>=(signed int)0xC0000000) memtarget=1; - } - if(tl>=0) { - //assert(tl>=0); - //assert(rt1[i]); - if(!using_tlb) { - if(!c) { - emit_lea8(addr,temp); - if (opcode[i]==0x22||opcode[i]==0x26) { - emit_andimm(addr,0xFFFFFFFC,temp2); // LWL/LWR - }else{ - emit_andimm(addr,0xFFFFFFF8,temp2); // LDL/LDR - } - emit_cmpimm(addr,0x800000); - jaddr=(int)out; - emit_jno(0); - } - else { - if (opcode[i]==0x22||opcode[i]==0x26) { - emit_movimm(((constmap[i][s]+offset)<<3)&24,temp); // LWL/LWR - }else{ - emit_movimm(((constmap[i][s]+offset)<<3)&56,temp); // LDL/LDR - } - } - }else{ // using tlb - int a; - if(c) { - a=-1; - }else if (opcode[i]==0x22||opcode[i]==0x26) { - a=0xFFFFFFFC; // LWL/LWR - }else{ - a=0xFFFFFFF8; // LDL/LDR - } - map=get_reg(i_regs->regmap,TLREG); - assert(map>=0); - map=do_tlb_r(addr,temp2,map,0,a,c?-1:temp,c,constmap[i][s]+offset); - if(c) { - if (opcode[i]==0x22||opcode[i]==0x26) { - emit_movimm(((constmap[i][s]+offset)<<3)&24,temp); // LWL/LWR - }else{ - emit_movimm(((constmap[i][s]+offset)<<3)&56,temp); // LDL/LDR - } - } - do_tlb_r_branch(map,c,constmap[i][s]+offset,&jaddr); - } - if (opcode[i]==0x22||opcode[i]==0x26) { // LWL/LWR - if(!c||memtarget) { - //emit_readword_indexed((int)rdram-0x80000000,temp2,temp2); - emit_readword_indexed_tlb(0,temp2,map,temp2); - if(jaddr) add_stub(LOADW_STUB,jaddr,(int)out,i,temp2,(int)i_regs,ccadj[i],reglist); - } - else - inline_readstub(LOADW_STUB,i,(constmap[i][s]+offset)&0xFFFFFFFC,i_regs->regmap,FTEMP,ccadj[i],reglist); - emit_andimm(temp,24,temp); - if (opcode[i]==0x26) emit_xorimm(temp,24,temp); // LWR - if(temp==ECX) - { - int temp3=EDX; - if(temp3==temp2) temp3++; - emit_pushreg(temp3); - emit_movimm(-1,temp3); - if (opcode[i]==0x26) { - emit_shrcl(temp3); - emit_shrcl(temp2); - }else{ - emit_shlcl(temp3); - emit_shlcl(temp2); - } - emit_mov(temp3,ECX); - emit_not(ECX,ECX); - emit_popreg(temp3); - } - else - { - int temp3=EBP; - if(temp3==temp) temp3++; - if(temp3==temp2) temp3++; - if(temp3==temp) temp3++; - emit_xchg(ECX,temp); - emit_pushreg(temp3); - emit_movimm(-1,temp3); - if (opcode[i]==0x26) { - emit_shrcl(temp3); - emit_shrcl(temp2==ECX?temp:temp2); - }else{ - emit_shlcl(temp3); - emit_shlcl(temp2==ECX?temp:temp2); - } - emit_not(temp3,temp3); - emit_mov(temp,ECX); - emit_mov(temp3,temp); - emit_popreg(temp3); - } - emit_and(temp,tl,tl); - emit_or(temp2,tl,tl); - //emit_storereg(rt1[i],tl); // DEBUG - /*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);*/ - } - if (opcode[i]==0x1A||opcode[i]==0x1B) { // LDL/LDR - if(s>=0) - if((i_regs->wasdirty>>s)&1) - emit_storereg(rs1[i],s); - if(get_reg(i_regs->regmap,rs1[i]|64)>=0) - if((i_regs->wasdirty>>get_reg(i_regs->regmap,rs1[i]|64))&1) - emit_storereg(rs1[i]|64,get_reg(i_regs->regmap,rs1[i]|64)); - int temp2h=get_reg(i_regs->regmap,FTEMP|64); - if(!c||memtarget) { - //if(th>=0) emit_readword_indexed((int)rdram-0x80000000,temp2,temp2h); - //emit_readword_indexed((int)rdram-0x7FFFFFFC,temp2,temp2); - emit_readdword_indexed_tlb(0,temp2,map,temp2h,temp2); - if(jaddr) add_stub(LOADD_STUB,jaddr,(int)out,i,temp2,(int)i_regs,ccadj[i],reglist); - } - else - inline_readstub(LOADD_STUB,i,(constmap[i][s]+offset)&0xFFFFFFF8,i_regs->regmap,FTEMP,ccadj[i],reglist); - emit_andimm(temp,56,temp); - emit_pushreg(temp); - emit_pushreg(temp2h); - emit_pushreg(temp2); - emit_pushreg(th); - emit_pushreg(tl); - if(opcode[i]==0x1A) emit_call((int)ldl_merge); - if(opcode[i]==0x1B) emit_call((int)ldr_merge); - emit_addimm(ESP,20,ESP); - if(tl!=EDX) { - if(tl!=EAX) emit_mov(EAX,tl); - if(th!=EDX) emit_mov(EDX,th); - } else - if(th!=EAX) { - if(th!=EDX) emit_mov(EDX,th); - if(tl!=EAX) emit_mov(EAX,tl); - } else { - emit_xchg(EAX,EDX); - } - if(s>=0) emit_loadreg(rs1[i],s); - if(get_reg(i_regs->regmap,rs1[i]|64)>=0) - emit_loadreg(rs1[i]|64,get_reg(i_regs->regmap,rs1[i]|64)); - } - } -} -#define loadlr_assemble loadlr_assemble_x86 - -void cop0_assemble(int i,struct regstat *i_regs) -{ - if(opcode2[i]==0) // MFC0 - { - signed char t=get_reg(i_regs->regmap,rt1[i]); - char copr=(source[i]>>11)&0x1f; - //assert(t>=0); // Why does this happen? OOT is weird - if(t>=0) { - emit_writeword_imm((int)&fake_pc,(int)&PC); - emit_writebyte_imm((source[i]>>11)&0x1f,(int)&(fake_pc.f.r.nrd)); - if(copr==9) { - emit_readword((int)&last_count,ECX); - emit_loadreg(CCREG,HOST_CCREG); // TODO: do proper reg alloc - emit_add(HOST_CCREG,ECX,HOST_CCREG); - emit_addimm(HOST_CCREG,CLOCK_DIVIDER*ccadj[i],HOST_CCREG); - emit_writeword(HOST_CCREG,(int)&Count); - } - emit_call((int)MFC0); - emit_readword((int)&readmem_dword,t); - } - } - else if(opcode2[i]==4) // MTC0 - { - signed char s=get_reg(i_regs->regmap,rs1[i]); - char copr=(source[i]>>11)&0x1f; - assert(s>=0); - emit_writeword(s,(int)&readmem_dword); - emit_pusha(); - emit_writeword_imm((int)&fake_pc,(int)&PC); - emit_writebyte_imm((source[i]>>11)&0x1f,(int)&(fake_pc.f.r.nrd)); - if(copr==9||copr==11||copr==12) { - if(copr==12&&!is_delayslot) { - wb_register(rs1[i],i_regs->regmap,i_regs->dirty,i_regs->is32); - } - emit_readword((int)&last_count,ECX); - emit_loadreg(CCREG,HOST_CCREG); // TODO: do proper reg alloc - emit_add(HOST_CCREG,ECX,HOST_CCREG); - emit_addimm(HOST_CCREG,CLOCK_DIVIDER*ccadj[i],HOST_CCREG); - emit_writeword(HOST_CCREG,(int)&Count); - } - // What a mess. The status register (12) can enable interrupts, - // so needs a special case to handle a pending interrupt. - // The interrupt must be taken immediately, because a subsequent - // instruction might disable interrupts again. - if(copr==12&&!is_delayslot) { - emit_writeword_imm(start+i*4+4,(int)&pcaddr); - emit_writebyte_imm(0,(int)&pending_exception); - } - //else if(copr==12&&is_delayslot) emit_call((int)MTC0_R12); - //else - emit_call((int)MTC0); - if(copr==9||copr==11||copr==12) { - emit_readword((int)&Count,HOST_CCREG); - emit_readword((int)&next_interupt,ECX); - emit_addimm(HOST_CCREG,-CLOCK_DIVIDER*ccadj[i],HOST_CCREG); - emit_sub(HOST_CCREG,ECX,HOST_CCREG); - emit_writeword(ECX,(int)&last_count); - emit_storereg(CCREG,HOST_CCREG); - } - emit_popa(); - if(copr==12) { - assert(!is_delayslot); - //if(is_delayslot) output_byte(0xcc); - emit_cmpmem_imm_byte((int)&pending_exception,0); - emit_jne((int)&do_interrupt); - } - cop1_usable=0; - } - else - { - assert(opcode2[i]==0x10); - if((source[i]&0x3f)==0x01) // TLBR - emit_call((int)TLBR); - if((source[i]&0x3f)==0x02) // TLBWI - emit_call((int)TLBWI_new); - if((source[i]&0x3f)==0x06) { // TLBWR - // The TLB entry written by TLBWR is dependent on the count, - // so update the cycle count - emit_readword((int)&last_count,ECX); - if(i_regs->regmap[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG); - emit_add(HOST_CCREG,ECX,HOST_CCREG); - emit_addimm(HOST_CCREG,CLOCK_DIVIDER*ccadj[i],HOST_CCREG); - emit_writeword(HOST_CCREG,(int)&Count); - emit_call((int)TLBWR_new); - } - if((source[i]&0x3f)==0x08) // TLBP - emit_call((int)TLBP); - if((source[i]&0x3f)==0x18) // ERET - { - int count=ccadj[i]; - if(i_regs->regmap[HOST_CCREG]!=CCREG) emit_loadreg(CCREG,HOST_CCREG); - emit_addimm_and_set_flags(CLOCK_DIVIDER*count,HOST_CCREG); // TODO: Should there be an extra cycle here? - emit_jmp((int)jump_eret); - } - } -} - -void cop1_assemble(int i,struct regstat *i_regs) -{ - // Check cop1 unusable - if(!cop1_usable) { - signed char rs=get_reg(i_regs->regmap,CSREG); - assert(rs>=0); - emit_testimm(rs,0x20000000); - int 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 (opcode2[i]==0) { // MFC1 - signed char tl=get_reg(i_regs->regmap,rt1[i]); - if(tl>=0) { - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],tl); - emit_readword_indexed(0,tl,tl); - } - } - else if (opcode2[i]==1) { // DMFC1 - signed char tl=get_reg(i_regs->regmap,rt1[i]); - signed char th=get_reg(i_regs->regmap,rt1[i]|64); - if(tl>=0) { - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],tl); - if(th>=0) emit_readword_indexed(4,tl,th); - emit_readword_indexed(0,tl,tl); - } - } - else if (opcode2[i]==4) { // MTC1 - signed char sl=get_reg(i_regs->regmap,rs1[i]); - signed char temp=get_reg(i_regs->regmap,-1); - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_writeword_indexed(sl,0,temp); - } - else if (opcode2[i]==5) { // DMTC1 - signed char sl=get_reg(i_regs->regmap,rs1[i]); - signed char sh=rs1[i]>0?get_reg(i_regs->regmap,rs1[i]|64):sl; - signed char temp=get_reg(i_regs->regmap,-1); - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_writeword_indexed(sh,4,temp); - emit_writeword_indexed(sl,0,temp); - } - else if (opcode2[i]==2) // CFC1 - { - signed char tl=get_reg(i_regs->regmap,rt1[i]); - if(tl>=0) { - u_int copr=(source[i]>>11)&0x1f; - if(copr==0) emit_readword((int)&FCR0,tl); - if(copr==31) emit_readword((int)&FCR31,tl); - } - } - else if (opcode2[i]==6) // CTC1 - { - signed char sl=get_reg(i_regs->regmap,rs1[i]); - u_int copr=(source[i]>>11)&0x1f; - assert(sl>=0); - if(copr==31) - { - emit_writeword(sl,(int)&FCR31); - // Set the rounding mode - char temp=get_reg(i_regs->regmap,-1); - emit_movimm(3,temp); - emit_and(sl,temp,temp); - emit_fldcw_indexed((int)&rounding_modes,temp); - } - } -} - -void fconv_assemble_x86(int i,struct regstat *i_regs) -{ - signed char temp=get_reg(i_regs->regmap,-1); - assert(temp>=0); - // Check cop1 unusable - if(!cop1_usable) { - signed char rs=get_reg(i_regs->regmap,CSREG); - assert(rs>=0); - emit_testimm(rs,0x20000000); - int 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(opcode2[i]==0x10&&(source[i]&0x3f)==0x0d) { // trunc_w_s - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_movss_load(temp,0); - emit_cvttps2dq(0,0); // float->int, truncate - if(((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_movd_store(0,temp); - return; - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0d) { // trunc_w_d - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_movsd_load(temp,0); - emit_cvttpd2dq(0,0); // double->int, truncate - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_movd_store(0,temp); - return; - } - - if(opcode2[i]==0x14&&(source[i]&0x3f)==0x20) { // cvt_s_w - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_fildl(temp); - if(((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_fstps(temp); - return; - } - if(opcode2[i]==0x14&&(source[i]&0x3f)==0x21) { // cvt_d_w - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_fildl(temp); - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - emit_fstpl(temp); - return; - } - if(opcode2[i]==0x15&&(source[i]&0x3f)==0x20) { // cvt_s_l - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fildll(temp); - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_fstps(temp); - return; - } - if(opcode2[i]==0x15&&(source[i]&0x3f)==0x21) { // cvt_d_l - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fildll(temp); - if(((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - emit_fstpl(temp); - return; - } - - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x21) { // cvt_d_s - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_flds(temp); - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - emit_fstpl(temp); - return; - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x20) { // cvt_s_d - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fldl(temp); - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_fstps(temp); - return; - } - - if(opcode2[i]==0x10) { // cvt_*_s - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_flds(temp); - } - if(opcode2[i]==0x11) { // cvt_*_d - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fldl(temp); - } - if((source[i]&0x3f)<0x10) { - emit_fnstcw_stack(); - if((source[i]&3)==0) emit_fldcw((int)&round_mode); //printf("round\n"); - if((source[i]&3)==1) emit_fldcw((int)&trunc_mode); //printf("trunc\n"); - if((source[i]&3)==2) emit_fldcw((int)&ceil_mode); //printf("ceil\n"); - if((source[i]&3)==3) emit_fldcw((int)&floor_mode); //printf("floor\n"); - } - if((source[i]&0x3f)==0x24||(source[i]&0x3c)==0x0c) { // cvt_w_* - if(opcode2[i]!=0x10||((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_fistpl(temp); - } - if((source[i]&0x3f)==0x25||(source[i]&0x3c)==0x08) { // cvt_l_* - if(opcode2[i]!=0x11||((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - emit_fistpll(temp); - } - if((source[i]&0x3f)<0x10) { - emit_fldcw_stack(); - } - return; - - // C emulation code for debugging - - emit_pusha(); - - if(opcode2[i]==0x14&&(source[i]&0x3f)==0x20) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)cvt_s_w); - } - if(opcode2[i]==0x14&&(source[i]&0x3f)==0x21) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)cvt_d_w); - } - if(opcode2[i]==0x15&&(source[i]&0x3f)==0x20) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)cvt_s_l); - } - if(opcode2[i]==0x15&&(source[i]&0x3f)==0x21) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)cvt_d_l); - } - - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x21) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)cvt_d_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x24) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)cvt_w_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x25) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)cvt_l_s); - } - - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x20) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)cvt_s_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x24) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)cvt_w_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x25) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)cvt_l_d); - } - - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x08) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)round_l_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x09) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)trunc_l_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x0a) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)ceil_l_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x0b) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)floor_l_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x0c) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)round_w_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x0d) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)trunc_w_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x0e) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)ceil_w_s); - } - if(opcode2[i]==0x10&&(source[i]&0x3f)==0x0f) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - emit_call((int)floor_w_s); - } - - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x08) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)round_l_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x09) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)trunc_l_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0a) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)ceil_l_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0b) { - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)floor_l_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0c) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)round_w_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0d) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)trunc_w_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0e) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)ceil_w_d); - } - if(opcode2[i]==0x11&&(source[i]&0x3f)==0x0f) { - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - emit_call((int)floor_w_d); - } - - emit_addimm(ESP,8,ESP); - emit_popa(); - //emit_loadreg(CSREG,rs); - return; -} -#define fconv_assemble fconv_assemble_x86 - -void fcomp_assemble(int i,struct regstat *i_regs) -{ - signed char fs=get_reg(i_regs->regmap,FSREG); - signed char temp=get_reg(i_regs->regmap,-1); - assert(temp>=0); - // Check cop1 unusable - if(!cop1_usable) { - signed char cs=get_reg(i_regs->regmap,CSREG); - assert(cs>=0); - emit_testimm(cs,0x20000000); - int jaddr=(int)out; - emit_jeq(0); - add_stub(FP_STUB,jaddr,(int)out,i,cs,(int)i_regs,is_delayslot,0); - cop1_usable=1; - } - - if((source[i]&0x3f)==0x30) { - emit_andimm(fs,~0x800000,fs); - return; - } - - if((source[i]&0x3e)==0x38) { - // sf/ngle - these should throw exceptions for NaNs - emit_andimm(fs,~0x800000,fs); - return; - } - - if(opcode2[i]==0x10) { - emit_readword((int)®_cop1_simple[(source[i]>>16)&0x1f],temp); - emit_flds(temp); - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_flds(temp); - emit_movimm(0x800000,temp); - emit_or(fs,temp,fs); - emit_xor(temp,fs,temp); - emit_fucomip(1); - emit_fpop(); - if((source[i]&0x3f)==0x31) emit_cmovnp_reg(temp,fs); // c_un_s - if((source[i]&0x3f)==0x32) {emit_cmovne_reg(temp,fs);emit_cmovp_reg(temp,fs);} // c_eq_s - if((source[i]&0x3f)==0x33) emit_cmovne_reg(temp,fs); // c_ueq_s - if((source[i]&0x3f)==0x34) {emit_cmovnc_reg(temp,fs);emit_cmovp_reg(temp,fs);} // c_olt_s - if((source[i]&0x3f)==0x35) emit_cmovnc_reg(temp,fs); // c_ult_s - if((source[i]&0x3f)==0x36) {emit_cmova_reg(temp,fs);emit_cmovp_reg(temp,fs);} // c_ole_s - if((source[i]&0x3f)==0x37) emit_cmova_reg(temp,fs); // c_ule_s - if((source[i]&0x3f)==0x3a) emit_cmovne_reg(temp,fs); // c_seq_s - if((source[i]&0x3f)==0x3b) emit_cmovne_reg(temp,fs); // c_ngl_s - if((source[i]&0x3f)==0x3c) emit_cmovnc_reg(temp,fs); // c_lt_s - if((source[i]&0x3f)==0x3d) emit_cmovnc_reg(temp,fs); // c_nge_s - if((source[i]&0x3f)==0x3e) emit_cmova_reg(temp,fs); // c_le_s - if((source[i]&0x3f)==0x3f) emit_cmova_reg(temp,fs); // c_ngt_s - return; - } - if(opcode2[i]==0x11) { - emit_readword((int)®_cop1_double[(source[i]>>16)&0x1f],temp); - emit_fldl(temp); - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fldl(temp); - emit_movimm(0x800000,temp); - emit_or(fs,temp,fs); - emit_xor(temp,fs,temp); - emit_fucomip(1); - emit_fpop(); - if((source[i]&0x3f)==0x31) emit_cmovnp_reg(temp,fs); // c_un_d - if((source[i]&0x3f)==0x32) {emit_cmovne_reg(temp,fs);emit_cmovp_reg(temp,fs);} // c_eq_d - if((source[i]&0x3f)==0x33) emit_cmovne_reg(temp,fs); // c_ueq_d - if((source[i]&0x3f)==0x34) {emit_cmovnc_reg(temp,fs);emit_cmovp_reg(temp,fs);} // c_olt_d - if((source[i]&0x3f)==0x35) emit_cmovnc_reg(temp,fs); // c_ult_d - if((source[i]&0x3f)==0x36) {emit_cmova_reg(temp,fs);emit_cmovp_reg(temp,fs);} // c_ole_d - if((source[i]&0x3f)==0x37) emit_cmova_reg(temp,fs); // c_ule_d - if((source[i]&0x3f)==0x3a) emit_cmovne_reg(temp,fs); // c_seq_d - if((source[i]&0x3f)==0x3b) emit_cmovne_reg(temp,fs); // c_ngl_d - if((source[i]&0x3f)==0x3c) emit_cmovnc_reg(temp,fs); // c_lt_d - if((source[i]&0x3f)==0x3d) emit_cmovnc_reg(temp,fs); // c_nge_d - if((source[i]&0x3f)==0x3e) emit_cmova_reg(temp,fs); // c_le_d - if((source[i]&0x3f)==0x3f) emit_cmova_reg(temp,fs); // c_ngt_d - return; - } - - emit_pusha(); - if(opcode2[i]==0x10) { - emit_pushmem((int)®_cop1_simple[(source[i]>>16)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - if((source[i]&0x3f)==0x30) emit_call((int)c_f_s); - if((source[i]&0x3f)==0x31) emit_call((int)c_un_s); - if((source[i]&0x3f)==0x32) emit_call((int)c_eq_s); - if((source[i]&0x3f)==0x33) emit_call((int)c_ueq_s); - if((source[i]&0x3f)==0x34) emit_call((int)c_olt_s); - if((source[i]&0x3f)==0x35) emit_call((int)c_ult_s); - if((source[i]&0x3f)==0x36) emit_call((int)c_ole_s); - if((source[i]&0x3f)==0x37) emit_call((int)c_ule_s); - if((source[i]&0x3f)==0x38) emit_call((int)c_sf_s); - if((source[i]&0x3f)==0x39) emit_call((int)c_ngle_s); - if((source[i]&0x3f)==0x3a) emit_call((int)c_seq_s); - if((source[i]&0x3f)==0x3b) emit_call((int)c_ngl_s); - if((source[i]&0x3f)==0x3c) emit_call((int)c_lt_s); - if((source[i]&0x3f)==0x3d) emit_call((int)c_nge_s); - if((source[i]&0x3f)==0x3e) emit_call((int)c_le_s); - if((source[i]&0x3f)==0x3f) emit_call((int)c_ngt_s); - } - if(opcode2[i]==0x11) { - emit_pushmem((int)®_cop1_double[(source[i]>>16)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - if((source[i]&0x3f)==0x30) emit_call((int)c_f_d); - if((source[i]&0x3f)==0x31) emit_call((int)c_un_d); - if((source[i]&0x3f)==0x32) emit_call((int)c_eq_d); - if((source[i]&0x3f)==0x33) emit_call((int)c_ueq_d); - if((source[i]&0x3f)==0x34) emit_call((int)c_olt_d); - if((source[i]&0x3f)==0x35) emit_call((int)c_ult_d); - if((source[i]&0x3f)==0x36) emit_call((int)c_ole_d); - if((source[i]&0x3f)==0x37) emit_call((int)c_ule_d); - if((source[i]&0x3f)==0x38) emit_call((int)c_sf_d); - if((source[i]&0x3f)==0x39) emit_call((int)c_ngle_d); - if((source[i]&0x3f)==0x3a) emit_call((int)c_seq_d); - if((source[i]&0x3f)==0x3b) emit_call((int)c_ngl_d); - if((source[i]&0x3f)==0x3c) emit_call((int)c_lt_d); - if((source[i]&0x3f)==0x3d) emit_call((int)c_nge_d); - if((source[i]&0x3f)==0x3e) emit_call((int)c_le_d); - if((source[i]&0x3f)==0x3f) emit_call((int)c_ngt_d); - } - emit_addimm(ESP,8,ESP); - emit_popa(); - emit_loadreg(FSREG,fs); - return; -} - -void float_assemble(int i,struct regstat *i_regs) -{ - signed char temp=get_reg(i_regs->regmap,-1); - assert(temp>=0); - // Check cop1 unusable - if(!cop1_usable) { - signed char cs=get_reg(i_regs->regmap,CSREG); - assert(cs>=0); - emit_testimm(cs,0x20000000); - int jaddr=(int)out; - emit_jeq(0); - add_stub(FP_STUB,jaddr,(int)out,i,cs,(int)i_regs,is_delayslot,0); - cop1_usable=1; - } - - if((source[i]&0x3f)==6) // mov - { - if(((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) { - if(opcode2[i]==0x10) { - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_flds(temp); - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - emit_fstps(temp); - } - if(opcode2[i]==0x11) { - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fldl(temp); - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - emit_fstpl(temp); - } - } - return; - } - - if((source[i]&0x3f)>3) - { - if(opcode2[i]==0x10) { - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_flds(temp); - if(((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) { - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - } - } - if(opcode2[i]==0x11) { - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fldl(temp); - if(((source[i]>>11)&0x1f)!=((source[i]>>6)&0x1f)) { - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - } - } - if((source[i]&0x3f)==4) // sqrt - emit_fsqrt(); - if((source[i]&0x3f)==5) // abs - emit_fabs(); - if((source[i]&0x3f)==7) // neg - emit_fchs(); - if(opcode2[i]==0x10) { - emit_fstps(temp); - } - if(opcode2[i]==0x11) { - emit_fstpl(temp); - } - return; - } - if((source[i]&0x3f)<4) - { - if(opcode2[i]==0x10) { - emit_readword((int)®_cop1_simple[(source[i]>>11)&0x1f],temp); - emit_flds(temp); - } - if(opcode2[i]==0x11) { - emit_readword((int)®_cop1_double[(source[i]>>11)&0x1f],temp); - emit_fldl(temp); - } - if(((source[i]>>11)&0x1f)!=((source[i]>>16)&0x1f)) { - if(opcode2[i]==0x10) { - emit_readword((int)®_cop1_simple[(source[i]>>16)&0x1f],temp); - if((source[i]&0x3f)==0) emit_fadds(temp); - if((source[i]&0x3f)==1) emit_fsubs(temp); - if((source[i]&0x3f)==2) emit_fmuls(temp); - if((source[i]&0x3f)==3) emit_fdivs(temp); - } - else if(opcode2[i]==0x11) { - emit_readword((int)®_cop1_double[(source[i]>>16)&0x1f],temp); - if((source[i]&0x3f)==0) emit_faddl(temp); - if((source[i]&0x3f)==1) emit_fsubl(temp); - if((source[i]&0x3f)==2) emit_fmull(temp); - if((source[i]&0x3f)==3) emit_fdivl(temp); - } - } - else { - if((source[i]&0x3f)==0) emit_fadd(0); - if((source[i]&0x3f)==1) emit_fsub(0); - if((source[i]&0x3f)==2) emit_fmul(0); - if((source[i]&0x3f)==3) emit_fdiv(0); - } - if(opcode2[i]==0x10) { - if(((source[i]>>16)&0x1f)!=((source[i]>>6)&0x1f)) { - emit_readword((int)®_cop1_simple[(source[i]>>6)&0x1f],temp); - } - emit_fstps(temp); - } - if(opcode2[i]==0x11) { - if(((source[i]>>16)&0x1f)!=((source[i]>>6)&0x1f)) { - emit_readword((int)®_cop1_double[(source[i]>>6)&0x1f],temp); - } - emit_fstpl(temp); - } - return; - } - - if(opcode2[i]==0x10) { // Single precision - emit_pusha(); - emit_pushmem((int)®_cop1_simple[(source[i]>> 6)&0x1f]); - if((source[i]&0x3f)<4) - emit_pushmem((int)®_cop1_simple[(source[i]>>16)&0x1f]); - emit_pushmem((int)®_cop1_simple[(source[i]>>11)&0x1f]); - switch(source[i]&0x3f) - { - case 0x00: emit_call((int)add_s);break; - case 0x01: emit_call((int)sub_s);break; - case 0x02: emit_call((int)mul_s);break; - case 0x03: emit_call((int)div_s);break; - case 0x04: emit_call((int)sqrt_s);break; - case 0x05: emit_call((int)abs_s);break; - case 0x06: emit_call((int)mov_s);break; - case 0x07: emit_call((int)neg_s);break; - } - emit_addimm(ESP,(source[i]&0x3f)<4?12:8,ESP); - emit_popa(); - } - if(opcode2[i]==0x11) { // Double precision - emit_pusha(); - emit_pushmem((int)®_cop1_double[(source[i]>> 6)&0x1f]); - if((source[i]&0x3f)<4) - emit_pushmem((int)®_cop1_double[(source[i]>>16)&0x1f]); - emit_pushmem((int)®_cop1_double[(source[i]>>11)&0x1f]); - switch(source[i]&0x3f) - { - case 0x00: emit_call((int)add_d);break; - case 0x01: emit_call((int)sub_d);break; - case 0x02: emit_call((int)mul_d);break; - case 0x03: emit_call((int)div_d);break; - case 0x04: emit_call((int)sqrt_d);break; - case 0x05: emit_call((int)abs_d);break; - case 0x06: emit_call((int)mov_d);break; - case 0x07: emit_call((int)neg_d);break; - } - emit_addimm(ESP,(source[i]&0x3f)<4?12:8,ESP); - emit_popa(); - } -} - -void multdiv_assemble_x86(int i,struct regstat *i_regs) -{ - // case 0x18: MULT - // case 0x19: MULTU - // case 0x1A: DIV - // case 0x1B: DIVU - // case 0x1C: DMULT - // case 0x1D: DMULTU - // case 0x1E: DDIV - // case 0x1F: DDIVU - if(rs1[i]&&rs2[i]) - { - if((opcode2[i]&4)==0) // 32-bit - { - if(opcode2[i]==0x18) // MULT - { - char m1=get_reg(i_regs->regmap,rs1[i]); - char m2=get_reg(i_regs->regmap,rs2[i]); - assert(m1>=0); - assert(m2>=0); - emit_mov(m1,EAX); - emit_imul(m2); - } - if(opcode2[i]==0x19) // MULTU - { - char m1=get_reg(i_regs->regmap,rs1[i]); - char m2=get_reg(i_regs->regmap,rs2[i]); - assert(m1>=0); - assert(m2>=0); - emit_mov(m1,EAX); - emit_mul(m2); - } - if(opcode2[i]==0x1A) // DIV - { - char d1=get_reg(i_regs->regmap,rs1[i]); - char d2=get_reg(i_regs->regmap,rs2[i]); - assert(d1>=0); - assert(d2>=0); - emit_mov(d1,EAX); - emit_cdq(); - emit_test(d2,d2); - emit_jeq((int)out+8); - emit_idiv(d2); - } - if(opcode2[i]==0x1B) // DIVU - { - char d1=get_reg(i_regs->regmap,rs1[i]); - char d2=get_reg(i_regs->regmap,rs2[i]); - assert(d1>=0); - assert(d2>=0); - emit_mov(d1,EAX); - emit_zeroreg(EDX); - emit_test(d2,d2); - emit_jeq((int)out+8); - emit_div(d2); - } - } - else // 64-bit - { - if(opcode2[i]==0x1C) // DMULT - { - char m1h=get_reg(i_regs->regmap,rs1[i]|64); - char m1l=get_reg(i_regs->regmap,rs1[i]); - char m2h=get_reg(i_regs->regmap,rs2[i]|64); - char m2l=get_reg(i_regs->regmap,rs2[i]); - assert(m1h>=0); - assert(m2h>=0); - assert(m1l>=0); - assert(m2l>=0); - emit_pushreg(m2h); - emit_pushreg(m2l); - emit_pushreg(m1h); - emit_pushreg(m1l); - emit_call((int)&mult64); - emit_popreg(m1l); - emit_popreg(m1h); - emit_popreg(m2l); - emit_popreg(m2h); - char hih=get_reg(i_regs->regmap,HIREG|64); - char hil=get_reg(i_regs->regmap,HIREG); - if(hih>=0) emit_loadreg(HIREG|64,hih); - if(hil>=0) emit_loadreg(HIREG,hil); - char loh=get_reg(i_regs->regmap,LOREG|64); - char lol=get_reg(i_regs->regmap,LOREG); - if(loh>=0) emit_loadreg(LOREG|64,loh); - if(lol>=0) emit_loadreg(LOREG,lol); - } - if(opcode2[i]==0x1D) // DMULTU - { - char m1h=get_reg(i_regs->regmap,rs1[i]|64); - char m1l=get_reg(i_regs->regmap,rs1[i]); - char m2h=get_reg(i_regs->regmap,rs2[i]|64); - char m2l=get_reg(i_regs->regmap,rs2[i]); - char temp=get_reg(i_regs->regmap,-1); - assert(m1h>=0); - assert(m2h>=0); - assert(m1l>=0); - assert(m2l>=0); - assert(temp>=0); - emit_mov(m1l,EAX); - emit_mul(m2l); - emit_storereg(LOREG,EAX); - emit_mov(EDX,temp); - emit_mov(m1h,EAX); - emit_mul(m2l); - emit_add(EAX,temp,temp); - emit_adcimm(0,EDX); - emit_storereg(HIREG,EDX); - emit_mov(m2h,EAX); - emit_mul(m1l); - emit_add(EAX,temp,temp); - emit_adcimm(0,EDX); - emit_storereg(LOREG|64,temp); - emit_mov(EDX,temp); - emit_mov(m2h,EAX); - emit_mul(m1h); - emit_add(EAX,temp,EAX); - emit_loadreg(HIREG,temp); - emit_adcimm(0,EDX); - emit_add(EAX,temp,EAX); - emit_adcimm(0,EDX); - // DEBUG - /* - emit_pushreg(m2h); - emit_pushreg(m2l); - emit_pushreg(m1h); - emit_pushreg(m1l); - emit_call((int)&multu64); - emit_popreg(m1l); - emit_popreg(m1h); - emit_popreg(m2l); - emit_popreg(m2h); - char hih=get_reg(i_regs->regmap,HIREG|64); - char hil=get_reg(i_regs->regmap,HIREG); - if(hih>=0) emit_loadreg(HIREG|64,hih); // DEBUG - if(hil>=0) emit_loadreg(HIREG,hil); // DEBUG - */ - // Shouldn't be necessary - //char loh=get_reg(i_regs->regmap,LOREG|64); - //char lol=get_reg(i_regs->regmap,LOREG); - //if(loh>=0) emit_loadreg(LOREG|64,loh); - //if(lol>=0) emit_loadreg(LOREG,lol); - } - if(opcode2[i]==0x1E) // DDIV - { - char d1h=get_reg(i_regs->regmap,rs1[i]|64); - char d1l=get_reg(i_regs->regmap,rs1[i]); - char d2h=get_reg(i_regs->regmap,rs2[i]|64); - char d2l=get_reg(i_regs->regmap,rs2[i]); - assert(d1h>=0); - assert(d2h>=0); - assert(d1l>=0); - assert(d2l>=0); - //emit_pushreg(d2h); - //emit_pushreg(d2l); - //emit_pushreg(d1h); - //emit_pushreg(d1l); - emit_addimm(ESP,-16,ESP); - emit_writeword_indexed(d2h,12,ESP); - emit_writeword_indexed(d2l,8,ESP); - emit_writeword_indexed(d1h,4,ESP); - emit_writeword_indexed(d1l,0,ESP); - emit_call((int)&div64); - //emit_popreg(d1l); - //emit_popreg(d1h); - //emit_popreg(d2l); - //emit_popreg(d2h); - emit_readword_indexed(0,ESP,d1l); - emit_readword_indexed(4,ESP,d1h); - emit_readword_indexed(8,ESP,d2l); - emit_readword_indexed(12,ESP,d2h); - emit_addimm(ESP,16,ESP); - char hih=get_reg(i_regs->regmap,HIREG|64); - char hil=get_reg(i_regs->regmap,HIREG); - char loh=get_reg(i_regs->regmap,LOREG|64); - char lol=get_reg(i_regs->regmap,LOREG); - if(hih>=0) emit_loadreg(HIREG|64,hih); - if(hil>=0) emit_loadreg(HIREG,hil); - if(loh>=0) emit_loadreg(LOREG|64,loh); - if(lol>=0) emit_loadreg(LOREG,lol); - } - if(opcode2[i]==0x1F) // DDIVU - { - char d1h=get_reg(i_regs->regmap,rs1[i]|64); - char d1l=get_reg(i_regs->regmap,rs1[i]); - char d2h=get_reg(i_regs->regmap,rs2[i]|64); - char d2l=get_reg(i_regs->regmap,rs2[i]); - assert(d1h>=0); - assert(d2h>=0); - assert(d1l>=0); - assert(d2l>=0); - //emit_pushreg(d2h); - //emit_pushreg(d2l); - //emit_pushreg(d1h); - //emit_pushreg(d1l); - emit_addimm(ESP,-16,ESP); - emit_writeword_indexed(d2h,12,ESP); - emit_writeword_indexed(d2l,8,ESP); - emit_writeword_indexed(d1h,4,ESP); - emit_writeword_indexed(d1l,0,ESP); - emit_call((int)&divu64); - //emit_popreg(d1l); - //emit_popreg(d1h); - //emit_popreg(d2l); - //emit_popreg(d2h); - emit_readword_indexed(0,ESP,d1l); - emit_readword_indexed(4,ESP,d1h); - emit_readword_indexed(8,ESP,d2l); - emit_readword_indexed(12,ESP,d2h); - emit_addimm(ESP,16,ESP); - char hih=get_reg(i_regs->regmap,HIREG|64); - char hil=get_reg(i_regs->regmap,HIREG); - char loh=get_reg(i_regs->regmap,LOREG|64); - char lol=get_reg(i_regs->regmap,LOREG); - if(hih>=0) emit_loadreg(HIREG|64,hih); - if(hil>=0) emit_loadreg(HIREG,hil); - if(loh>=0) emit_loadreg(LOREG|64,loh); - if(lol>=0) emit_loadreg(LOREG,lol); - } - } - } - else - { - // Multiply by zero is zero. - // MIPS does not have a divide by zero exception. - // The result is undefined, we return zero. - char hr=get_reg(i_regs->regmap,HIREG); - char lr=get_reg(i_regs->regmap,LOREG); - if(hr>=0) emit_zeroreg(hr); - if(lr>=0) emit_zeroreg(lr); - } -} -#define multdiv_assemble multdiv_assemble_x86 - -void do_preload_rhash(int r) { - emit_movimm(0xf8,r); -} - -void do_preload_rhtbl(int r) { - // Don't need this for x86 -} - -void do_rhash(int rs,int rh) { - emit_and(rs,rh,rh); -} - -void do_miniht_load(int ht,int rh) { - // Don't need this for x86. The load and compare can be combined into - // a single instruction (below) -} - -void do_miniht_jump(int rs,int rh,int ht) { - emit_cmpmem_indexed((int)mini_ht,rh,rs); - emit_jne(jump_vaddr_reg[rs]); - emit_jmpmem_indexed((int)mini_ht+4,rh); -} - -void do_miniht_insert(int return_address,int rt,int temp) { - emit_movimm(return_address,rt); // PC into link register - //emit_writeword_imm(return_address,(int)&mini_ht[(return_address&0xFF)>>8][0]); - emit_writeword(rt,(int)&mini_ht[(return_address&0xFF)>>3][0]); - add_to_linker((int)out,return_address,1); - emit_writeword_imm(0,(int)&mini_ht[(return_address&0xFF)>>3][1]); -} - -// We don't need this for x86 -void literal_pool(int n) {} -void literal_pool_jumpover(int n) {} - -// CPU-architecture-specific initialization, not needed for x86 -void arch_init() {} |