From fd99c4154af2d13702f499360f69756b1dfc48a4 Mon Sep 17 00:00:00 2001 From: notaz Date: Fri, 4 Feb 2011 15:10:07 +0200 Subject: [PATCH] drc: handle dummy reads in inline_readstub --- libpcsxcore/new_dynarec/assem_arm.c | 35 +++++++++++++++++------------ 1 file changed, 21 insertions(+), 14 deletions(-) diff --git a/libpcsxcore/new_dynarec/assem_arm.c b/libpcsxcore/new_dynarec/assem_arm.c index 9c5d1089..976aac8c 100644 --- a/libpcsxcore/new_dynarec/assem_arm.c +++ b/libpcsxcore/new_dynarec/assem_arm.c @@ -2659,8 +2659,11 @@ inline_readstub(int type, int i, u_int addr, signed char regmap[], int target, i int rs=get_reg(regmap,target); int rth=get_reg(regmap,target|64); int rt=get_reg(regmap,target); + // allow for PCSX dummy reads + //assert(rt>=0); + if(rs<0) + rs=get_reg(regmap,-1); assert(rs>=0); - assert(rt>=0); int ftable=0; if(type==LOADB_STUB||type==LOADBU_STUB) ftable=(int)readmemb; @@ -2673,6 +2676,8 @@ inline_readstub(int type, int i, u_int addr, signed char regmap[], int target, i ftable=(int)readmemd; #endif assert(ftable!=0); + if(target==0) + emit_movimm(addr,rs); emit_writeword(rs,(int)&address); //emit_pusha(); save_regs(reglist); @@ -2706,19 +2711,21 @@ inline_readstub(int type, int i, u_int addr, signed char regmap[], int target, i } //emit_popa(); restore_regs(reglist); - 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); + if(rt>=0) { + 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); + } } } -- 2.39.2