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ppsspp/Core/MIPS/MIPSDis.cpp

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// Copyright (c) 2012- PPSSPP Project.
// 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, version 2.0 or later versions.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include "../HLE/HLE.h"
#include "MIPS.h"
#include "MIPSDis.h"
#include "MIPSTables.h"
#include "MIPSDebugInterface.h"
#include "JitCommon/JitCommon.h"
#define _RS ((op>>21) & 0x1F)
#define _RT ((op>>16) & 0x1F)
#define _RD ((op>>11) & 0x1F)
#define _FS ((op>>11) & 0x1F)
#define _FT ((op>>16) & 0x1F)
#define _FD ((op>>6 ) & 0x1F)
#define _POS ((op>>6 ) & 0x1F)
#define _SIZE ((op>>11 ) & 0x1F)
#define RN(i) currentDebugMIPS->GetRegName(0,i)
#define FN(i) currentDebugMIPS->GetRegName(1,i)
//#define VN(i) currentMIPS->GetRegName(2,i)
u32 disPC;
namespace MIPSDis
{
void Dis_Generic(u32 op, char *out)
{
sprintf(out, "%s\t --- unknown ---", MIPSGetName(op));
}
void Dis_mxc1(u32 op, char *out)
{
int fs = _FS;
int rt = _RT;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s",name,RN(rt),FN(fs));
}
void Dis_FPU3op(u32 op, char *out)
{
int ft = _FT;
int fs = _FS;
int fd = _FD;;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s, %s",name,FN(fd),FN(fs),FN(ft));
}
void Dis_FPU2op(u32 op, char *out)
{
int fs = _FS;
int fd = _FD;;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s",name,FN(fd),FN(fs));
}
void Dis_FPULS(u32 op, char *out)
{
int offset = (signed short)(op&0xFFFF);
int ft = _FT;
int rs = _RS;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %d(%s)",name,FN(ft),offset,RN(rs));
}
void Dis_FPUComp(u32 op, char *out)
{
int fs = _FS;
int ft = _FT;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s",name,FN(fs),FN(ft));
}
void Dis_FPUBranch(u32 op, char *out)
{
u32 off = disPC;
int imm = (signed short)(op&0xFFFF)<<2;
off += imm + 4;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t->$%08x",name,off);
}
void Dis_RelBranch(u32 op, char *out)
{
u32 off = disPC;
int imm = (signed short)(op&0xFFFF)<<2;
int rs = _RS;
off += imm + 4;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, ->$%08x",name,RN(rs),off);
}
void Dis_Syscall(u32 op, char *out)
{
u32 callno = (op>>6) & 0xFFFFF; //20 bits
int funcnum = callno & 0xFFF;
int modulenum = (callno & 0xFF000) >> 12;
sprintf(out, "syscall\t %s",/*PSPHLE::GetModuleName(modulenum),*/GetFuncName(modulenum, funcnum));
}
void Dis_ToHiloTransfer(u32 op, char *out)
{
int rs = _RS;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s",name,RN(rs));
}
void Dis_FromHiloTransfer(u32 op, char *out)
{
int rd = _RD;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s",name,RN(rd));
}
void Dis_RelBranch2(u32 op, char *out)
{
u32 off = disPC;
int imm = (signed short)(op&0xFFFF)<<2;
int rt = _RT;
int rs = _RS;
off += imm + 4;
const char *name = MIPSGetName(op);
int o = op>>26;
if (o==4 && rs == rt)//beq
sprintf(out,"b\t->$%08x",off);
else if (o==4 && rs == rt)//beq
sprintf(out,"bl\t->$%08x",off);
else
sprintf(out, "%s\t%s, %s, ->$%08x",name,RN(rt),RN(rs),off);
}
void Dis_IType(u32 op, char *out)
{
int imm = (signed short)(op&0xFFFF);
int rt = _RT;
int rs = _RS;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s, %i",name,RN(rt),RN(rs),imm);
}
void Dis_ori(u32 op, char *out)
{
int imm = (signed short)(op&0xFFFF);
int rt = _RT;
int rs = _RS;
const char *name = MIPSGetName(op);
if (rs == 0)
sprintf(out, "li\t%s, %i",RN(rt),imm);
else
sprintf(out, "%s\t%s, %s, %i",name,RN(rt),RN(rs),imm);
}
void Dis_IType1(u32 op, char *out)
{
int imm = (signed short)(op&0xFFFF);
int rt = _RT;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %i",name,RN(rt),imm);
}
void Dis_addi(u32 op, char *out)
{
int imm = (signed short)(op&0xFFFF);
int rt = _RT;
int rs = _RS;
if (rs == 0)
sprintf(out, "li\t%s, %i",RN(rt),imm);
else
Dis_IType(op,out);
}
void Dis_ITypeMem(u32 op, char *out)
{
int imm = (signed short)(op&0xFFFF);
int rt = _RT;
int rs = _RS;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %i(%s)",name,RN(rt),imm,RN(rs));
}
void Dis_RType2(u32 op, char *out)
{
int rs = _RS;
int rd = _RD;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s",name,RN(rd),RN(rs));
}
void Dis_RType3(u32 op, char *out)
{
int rt = _RT;
int rs = _RS;
int rd = _RD;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s, %s",name,RN(rd),RN(rs),RN(rt));
}
void Dis_addu(u32 op, char *out)
{
int rt = _RT;
int rs = _RS;
int rd = _RD;
const char *name = MIPSGetName(op);
if (rs==0 && rt==0)
sprintf(out,"li\t%s, 0",RN(rd));
else if (rs == 0)
sprintf(out,"mov\t%s, %s",RN(rd),RN(rt));
else if (rt == 0)
sprintf(out,"mov\t%s, %s",RN(rd),RN(rs));
else
sprintf(out, "%s\t%s, %s, %s",name,RN(rd),RN(rs),RN(rt));
}
void Dis_ShiftType(u32 op, char *out)
{
int rt = _RT;
int rs = _RS;
int rd = _RD;
int sa = (op>>6) & 0x1F;
const char *name = MIPSGetName(op);
if (((op & 0x3f) == 2) && rs == 1)
name = "rotr";
if (((op & 0x3f) == 6) && sa == 1)
name = "rotrv";
sprintf(out, "%s\t%s, %s, %d",name,RN(rd),RN(rt),sa);
}
void Dis_VarShiftType(u32 op, char *out)
{
int rt = _RT;
int rs = _RS;
int rd = _RD;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s, %s",name,RN(rd),RN(rt),RN(rs));
}
void Dis_MulDivType(u32 op, char *out)
{
int rt = _RT;
int rs = _RS;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t%s, %s",name,RN(rs),RN(rt));
}
void Dis_Special3(u32 op, char *out)
{
int rs = _RS;
int Rt = _RT;
int pos = _POS;
const char *name = MIPSGetName(op);
switch (op & 0x3f)
{
case 0x0: //ext
{
int size = _SIZE + 1;
sprintf(out,"%s\t%s, %s, %i, %i",name,RN(Rt),RN(rs),pos,size);
}
break;
case 0x4: // ins
{
int size = (_SIZE + 1) - pos;
sprintf(out,"%s\t%s, %s, %i, %i",name,RN(Rt),RN(rs),pos,size);
}
break;
}
}
void Dis_JumpType(u32 op, char *out)
{
u32 off = ((op & 0x3FFFFFF) << 2);
u32 addr = (disPC & 0xF0000000) | off;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t->$%08x",name,addr);
}
void Dis_JumpRegType(u32 op, char *out)
{
int rs = (op>>21)&0x1f;
const char *name = MIPSGetName(op);
sprintf(out, "%s\t->%s",name,RN(rs));
}
void Dis_Allegrex(u32 op, char *out)
{
int rt = _RT;
int rd = _RD;
const char *name = MIPSGetName(op);
sprintf(out,"%s\t%s,%s",name,RN(rd),RN(rt));
}
void Dis_Allegrex2(u32 op, char *out)
{
int rt = _RT;
int rd = _RD;
const char *name = MIPSGetName(op);
sprintf(out,"%s\t%s,%s",name,RN(rd),RN(rt));
}
void Dis_Emuhack(u32 op, char *out)
{
//const char *name = MIPSGetName(op);
//sprintf(out,"%s\t-",name);
out[0]='*';
out[1]=0;
// MIPSDisAsm(MIPSComp::GetOriginalOp(op), currentDebugMIPS->GetPC(), out+1);
}
}
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