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/***************************************************************************
* Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
* *
* 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 02111-1307 USA. *
***************************************************************************/
/*
* Internal PSX HLE functions.
*/
#include "psxhle.h"
#if 0
#define PSXHLE_LOG SysPrintf
#else
#define PSXHLE_LOG(...)
#endif
static void hleDummy() {
psxRegs.pc = psxRegs.GPR.n.ra;
psxBranchTest();
}
static void hleA0() {
u32 call = psxRegs.GPR.n.t1 & 0xff;
if (biosA0[call]) biosA0[call]();
psxBranchTest();
}
static void hleB0() {
u32 call = psxRegs.GPR.n.t1 & 0xff;
if (biosB0[call]) biosB0[call]();
psxBranchTest();
}
static void hleC0() {
u32 call = psxRegs.GPR.n.t1 & 0xff;
if (biosC0[call]) biosC0[call]();
psxBranchTest();
}
static void hleBootstrap() { // 0xbfc00000
PSXHLE_LOG("hleBootstrap\n");
CheckCdrom();
LoadCdrom();
PSXHLE_LOG("CdromLabel: \"%s\": PC = %8.8lx (SP = %8.8lx)\n", CdromLabel, psxRegs.pc, psxRegs.GPR.n.sp);
}
typedef struct {
u32 _pc0;
u32 gp0;
u32 t_addr;
u32 t_size;
u32 d_addr;
u32 d_size;
u32 b_addr;
u32 b_size;
u32 S_addr;
u32 s_size;
u32 _sp,_fp,_gp,ret,base;
} EXEC;
static void hleExecRet() {
EXEC *header = (EXEC*)PSXM(psxRegs.GPR.n.s0);
PSXHLE_LOG("ExecRet %x: %x\n", psxRegs.GPR.n.s0, header->ret);
psxRegs.GPR.n.ra = header->ret;
psxRegs.GPR.n.sp = header->_sp;
psxRegs.GPR.n.s8 = header->_fp;
psxRegs.GPR.n.gp = header->_gp;
psxRegs.GPR.n.s0 = header->base;
psxRegs.GPR.n.v0 = 1;
psxRegs.pc = psxRegs.GPR.n.ra;
}
void (*psxHLEt[256])() = {
hleDummy, hleA0, hleB0, hleC0,
hleBootstrap, hleExecRet,
hleDummy, hleDummy
};
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