1: /*  Pcsx - Pc Psx Emulator
   2:  *  Copyright (C) 1999-2003  Pcsx Team
   3:  *
   4:  *  This program is free software; you can redistribute it and/or modify
   5:  *  it under the terms of the GNU General Public License as published by
   6:  *  the Free Software Foundation; either version 2 of the License, or
   7:  *  (at your option) any later version.
   8:  *
   9:  *  This program is distributed in the hope that it will be useful,
  10:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12:  *  GNU General Public License for more details.
  13:  *
  14:  *  You should have received a copy of the GNU General Public License
  15:  *  along with this program; if not, write to the Free Software
  16:  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17:  */
  18: 
  19: 
  20: #include "PsxCommon.h"
  21: 
  22: static void hleDummy() {
  23:         psxRegs.pc = psxRegs.GPR.n.ra;
  24: 
  25:         psxBranchTest();
  26: }
  27: 
  28: static void hleA0() {
  29:         u32 call = psxRegs.GPR.n.t1 & 0xff;
  30: 
  31:         if (biosA0[call]) biosA0[call]();
  32: 
  33:         psxBranchTest();
  34: }
  35: 
  36: static void hleB0() {
  37:         u32 call = psxRegs.GPR.n.t1 & 0xff;
  38: 
  39:         if (biosB0[call]) biosB0[call]();
  40: 
  41:         psxBranchTest();
  42: }
  43: 
  44: static void hleC0() {
  45:         u32 call = psxRegs.GPR.n.t1 & 0xff;
  46: 
  47:         if (biosC0[call]) biosC0[call]();
  48: 
  49:         psxBranchTest();
  50: }
  51: 
  52: static void hleBootstrap() { // 0xbfc00000
  53:         SysPrintf("hleBootstrap\n");
  54:         CheckCdrom();
  55:         LoadCdrom();
  56:         SysPrintf("CdromLabel: \"%s\": PC = %8.8lx (SP = %8.8lx)\n", CdromLabel, psxRegs.pc, psxRegs.GPR.n.sp);
  57: }
  58: 
  59: typedef struct {                   
  60:         unsigned long _pc0;      
  61:         unsigned long gp0;      
  62:         unsigned long t_addr;   
  63:         unsigned long t_size;   
  64:         unsigned long d_addr;   
  65:         unsigned long d_size;   
  66:         unsigned long b_addr;   
  67:         unsigned long b_size;   
  68:         unsigned long S_addr;
  69:         unsigned long s_size;
  70:         unsigned long _sp,_fp,_gp,ret,base;
  71: } EXEC;
  72: 
  73: static void hleExecRet() {
  74:         EXEC *header = (EXEC*)PSXM(psxRegs.GPR.n.s0);
  75: 
  76:         SysPrintf("ExecRet %x: %x\n", psxRegs.GPR.n.s0, header->ret);
  77: 
  78:         psxRegs.GPR.n.ra = header->ret;
  79:         psxRegs.GPR.n.sp = header->_sp;
  80:         psxRegs.GPR.n.s8 = header->_fp;
  81:         psxRegs.GPR.n.gp = header->_gp;
  82:         psxRegs.GPR.n.s0 = header->base;
  83: 
  84:         psxRegs.GPR.n.v0 = 1;
  85:         psxRegs.pc = psxRegs.GPR.n.ra;
  86: }
  87: 
  88: void (*psxHLEt[256])() = {
  89:         hleDummy, hleA0, hleB0, hleC0,
  90:         hleBootstrap, hleExecRet
  91: };
  92: /* arch-tag: Matthew Dempsky Wed Oct 15 10:34:49 CST 2003 (PsxHLE.c)
  93:  */
  94: