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MA_EE.cpp
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#include <stddef.h>
#include "../MIPS.h"
#include "../MemoryUtils.h"
#include "MA_EE.h"
#include "offsetof_def.h"
CMA_EE::CMA_EE()
: CMA_MIPSIV(MIPS_REGSIZE_64)
{
m_pOpGeneral[0x1E] = std::bind(&CMA_EE::LQ, this);
m_pOpGeneral[0x1F] = std::bind(&CMA_EE::SQ, this);
m_pOpRegImm[0x18] = std::bind(&CMA_EE::MTSAB, this);
m_pOpRegImm[0x19] = std::bind(&CMA_EE::MTSAH, this);
m_pOpSpecial[0x28] = std::bind(&CMA_EE::MFSA, this);
m_pOpSpecial[0x29] = std::bind(&CMA_EE::MTSA, this);
m_pOpSpecial2[0x00] = std::bind(&CMA_EE::MADD, this);
m_pOpSpecial2[0x01] = std::bind(&CMA_EE::MADDU, this);
m_pOpSpecial2[0x04] = std::bind(&CMA_EE::PLZCW, this);
m_pOpSpecial2[0x08] = std::bind(&CMA_EE::MMI0, this);
m_pOpSpecial2[0x09] = std::bind(&CMA_EE::MMI2, this);
m_pOpSpecial2[0x10] = std::bind(&CMA_EE::MFHI1, this);
m_pOpSpecial2[0x11] = std::bind(&CMA_EE::MTHI1, this);
m_pOpSpecial2[0x12] = std::bind(&CMA_EE::MFLO1, this);
m_pOpSpecial2[0x13] = std::bind(&CMA_EE::MTLO1, this);
m_pOpSpecial2[0x18] = std::bind(&CMA_EE::MULT1, this);
m_pOpSpecial2[0x19] = std::bind(&CMA_EE::MULTU1, this);
m_pOpSpecial2[0x1A] = std::bind(&CMA_EE::DIV1, this);
m_pOpSpecial2[0x1B] = std::bind(&CMA_EE::DIVU1, this);
m_pOpSpecial2[0x20] = std::bind(&CMA_EE::MADD1, this);
m_pOpSpecial2[0x21] = std::bind(&CMA_EE::MADDU1, this);
m_pOpSpecial2[0x28] = std::bind(&CMA_EE::MMI1, this);
m_pOpSpecial2[0x29] = std::bind(&CMA_EE::MMI3, this);
m_pOpSpecial2[0x30] = std::bind(&CMA_EE::PMFHL, this);
m_pOpSpecial2[0x34] = std::bind(&CMA_EE::PSLLH, this);
m_pOpSpecial2[0x36] = std::bind(&CMA_EE::PSRLH, this);
m_pOpSpecial2[0x37] = std::bind(&CMA_EE::PSRAH, this);
m_pOpSpecial2[0x3C] = std::bind(&CMA_EE::PSLLW, this);
m_pOpSpecial2[0x3E] = std::bind(&CMA_EE::PSRLW, this);
m_pOpSpecial2[0x3F] = std::bind(&CMA_EE::PSRAW, this);
SetupReflectionTables();
}
void CMA_EE::PushVector(unsigned int nReg)
{
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[nReg]));
}
void CMA_EE::PullVector(unsigned int nReg)
{
m_codeGen->MD_PullRel(offsetof(CMIPS, m_State.nGPR[nReg]));
}
size_t CMA_EE::GetLoOffset(unsigned int index)
{
switch(index)
{
case 0:
return offsetof(CMIPS, m_State.nLO[0]);
break;
case 1:
return offsetof(CMIPS, m_State.nLO[1]);
break;
case 2:
return offsetof(CMIPS, m_State.nLO1[0]);
break;
case 3:
return offsetof(CMIPS, m_State.nLO1[1]);
break;
default:
throw std::exception();
break;
}
}
size_t CMA_EE::GetHiOffset(unsigned int index)
{
switch(index)
{
case 0:
return offsetof(CMIPS, m_State.nHI[0]);
break;
case 1:
return offsetof(CMIPS, m_State.nHI[1]);
break;
case 2:
return offsetof(CMIPS, m_State.nHI1[0]);
break;
case 3:
return offsetof(CMIPS, m_State.nHI1[1]);
break;
default:
throw std::exception();
break;
}
}
//////////////////////////////////////////////////
//General Opcodes
//////////////////////////////////////////////////
//1E
void CMA_EE::LQ()
{
if(m_nRT == 0) return;
ComputeMemAccessPageRef();
m_codeGen->PushCst(0);
m_codeGen->BeginIf(Jitter::CONDITION_NE);
{
ComputeMemAccessRefIdx(0x10);
m_codeGen->MD_LoadFromRefIdx(1);
m_codeGen->MD_PullRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
}
m_codeGen->Else();
{
if(m_codeGen->GetCodeGen()->Has128BitsCallOperands())
{
ComputeMemAccessAddrNoXlat();
m_codeGen->PushCtx();
m_codeGen->PushIdx(1);
m_codeGen->Call(reinterpret_cast<void*>(&MemoryUtils_GetQuadProxy), 2, Jitter::CJitter::RETURN_VALUE_128);
m_codeGen->MD_PullRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->PullTop();
}
else
{
ComputeMemAccessAddrNoXlat();
for(uint32 i = 0; i < 4; i )
{
m_codeGen->PushCtx();
m_codeGen->PushIdx(1);
m_codeGen->PushCst(i * 4);
m_codeGen->Add();
m_codeGen->Call(reinterpret_cast<void*>(&MemoryUtils_GetWordProxy), 2, Jitter::CJitter::RETURN_VALUE_32);
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
}
m_codeGen->PullTop();
}
}
m_codeGen->EndIf();
}
//1F
void CMA_EE::SQ()
{
ComputeMemAccessPageRef();
m_codeGen->PushCst(0);
m_codeGen->BeginIf(Jitter::CONDITION_NE);
{
ComputeMemAccessRefIdx(0x10);
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->MD_StoreAtRefIdx(1);
}
m_codeGen->Else();
{
if(m_codeGen->GetCodeGen()->Has128BitsCallOperands())
{
ComputeMemAccessAddrNoXlat();
m_codeGen->PushCtx();
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->PushIdx(2);
m_codeGen->Call(reinterpret_cast<void*>(&MemoryUtils_SetQuadProxy), 3, Jitter::CJitter::RETURN_VALUE_NONE);
m_codeGen->PullTop();
}
else
{
ComputeMemAccessAddrNoXlat();
for(uint32 i = 0; i < 4; i )
{
m_codeGen->PushCtx();
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushIdx(2);
m_codeGen->PushCst(i * 4);
m_codeGen->Add();
m_codeGen->Call(reinterpret_cast<void*>(&MemoryUtils_SetWordProxy), 3, Jitter::CJitter::RETURN_VALUE_NONE);
}
m_codeGen->PullTop();
}
}
m_codeGen->EndIf();
}
//////////////////////////////////////////////////
//RegImm Opcodes
//////////////////////////////////////////////////
//18
void CMA_EE::MTSAB()
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[0]));
m_codeGen->PushCst(0x0F);
m_codeGen->And();
m_codeGen->PushCst(m_nImmediate & 0x0F);
m_codeGen->Xor();
m_codeGen->Shl(0x03);
m_codeGen->PullRel(offsetof(CMIPS, m_State.nSA));
}
//19
void CMA_EE::MTSAH()
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[0]));
m_codeGen->PushCst(0x07);
m_codeGen->And();
m_codeGen->PushCst(m_nImmediate & 0x07);
m_codeGen->Xor();
m_codeGen->Shl(0x04);
m_codeGen->PullRel(offsetof(CMIPS, m_State.nSA));
}
//////////////////////////////////////////////////
//Special Opcodes
//////////////////////////////////////////////////
//28
void CMA_EE::MFSA()
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nSA));
m_codeGen->Srl(3);
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[0]));
}
//29
void CMA_EE::MTSA()
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[0]));
m_codeGen->PushCst(0xF);
m_codeGen->And();
m_codeGen->Shl(3);
m_codeGen->PullRel(offsetof(CMIPS, m_State.nSA));
}
//////////////////////////////////////////////////
//MMI Opcodes
//////////////////////////////////////////////////
//00
void CMA_EE::MADD()
{
Generic_MADD(0, true);
}
//01
void CMA_EE::MADDU()
{
Generic_MADD(0, false);
}
//04
void CMA_EE::PLZCW()
{
if(m_nRD == 0) return;
for(unsigned int i = 0; i < 2; i )
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[i]));
m_codeGen->Lzc();
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[i]));
}
}
//08
void CMA_EE::MMI0()
{
((this)->*(m_pOpMmi0[(m_nOpcode >> 6) & 0x1F]))();
}
//09
void CMA_EE::MMI2()
{
((this)->*(m_pOpMmi2[(m_nOpcode >> 6) & 0x1F]))();
}
//10
void CMA_EE::MFHI1()
{
if(m_nRD == 0) return;
m_codeGen->PushRel(offsetof(CMIPS, m_State.nHI1[0]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[0]));
m_codeGen->PushRel(offsetof(CMIPS, m_State.nHI1[1]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[1]));
}
//11
void CMA_EE::MTHI1()
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[0]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nHI1[0]));
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[1]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nHI1[1]));
}
//12
void CMA_EE::MFLO1()
{
if(m_nRD == 0) return;
m_codeGen->PushRel(offsetof(CMIPS, m_State.nLO1[0]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[0]));
m_codeGen->PushRel(offsetof(CMIPS, m_State.nLO1[1]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[1]));
}
//13
void CMA_EE::MTLO1()
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[0]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nLO1[0]));
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[1]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nLO1[1]));
}
//18
void CMA_EE::MULT1()
{
Template_Mult32(true, 1);
}
//19
void CMA_EE::MULTU1()
{
Template_Mult32(false, 1);
}
//1A
void CMA_EE::DIV1()
{
Template_Div32(true, 1);
}
//1B
void CMA_EE::DIVU1()
{
Template_Div32(false, 1);
}
//20
void CMA_EE::MADD1()
{
Generic_MADD(1, true);
}
//21
void CMA_EE::MADDU1()
{
Generic_MADD(1, false);
}
//28
void CMA_EE::MMI1()
{
((this)->*(m_pOpMmi1[(m_nOpcode >> 6) & 0x1F]))();
}
//29
void CMA_EE::MMI3()
{
((this)->*(m_pOpMmi3[(m_nOpcode >> 6) & 0x1F]))();
}
//30
void CMA_EE::PMFHL()
{
((this)->*(m_pOpPmfhl[(m_nOpcode >> 6) & 0x1F]))();
}
//34
void CMA_EE::PSLLH()
{
if(m_nRD == 0) return;
PushVector(m_nRT);
m_codeGen->MD_SllH(m_nSA);
PullVector(m_nRD);
}
//36
void CMA_EE::PSRLH()
{
if(m_nRD == 0) return;
PushVector(m_nRT);
m_codeGen->MD_SrlH(m_nSA);
PullVector(m_nRD);
}
//37
void CMA_EE::PSRAH()
{
if(m_nRD == 0) return;
PushVector(m_nRT);
m_codeGen->MD_SraH(m_nSA);
PullVector(m_nRD);
}
//3C
void CMA_EE::PSLLW()
{
if(m_nRD == 0) return;
PushVector(m_nRT);
m_codeGen->MD_SllW(m_nSA);
PullVector(m_nRD);
}
//3E
void CMA_EE::PSRLW()
{
if(m_nRD == 0) return;
PushVector(m_nRT);
m_codeGen->MD_SrlW(m_nSA);
PullVector(m_nRD);
}
//3F
void CMA_EE::PSRAW()
{
if(m_nRD == 0) return;
PushVector(m_nRT);
m_codeGen->MD_SraW(m_nSA);
PullVector(m_nRD);
}
//////////////////////////////////////////////////
//MMI0 Opcodes
//////////////////////////////////////////////////
//00
void CMA_EE::PADDW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddW();
PullVector(m_nRD);
}
//01
void CMA_EE::PSUBW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubW();
PullVector(m_nRD);
}
//02
void CMA_EE::PCGTW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_CmpGtW();
PullVector(m_nRD);
}
//03
void CMA_EE::PMAXW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_MaxW();
PullVector(m_nRD);
}
//04
void CMA_EE::PADDH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddH();
PullVector(m_nRD);
}
//05
void CMA_EE::PSUBH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubH();
PullVector(m_nRD);
}
//06
void CMA_EE::PCGTH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_CmpGtH();
PullVector(m_nRD);
}
//07
void CMA_EE::PMAXH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_MaxH();
PullVector(m_nRD);
}
//08
void CMA_EE::PADDB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddB();
PullVector(m_nRD);
}
//09
void CMA_EE::PSUBB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubB();
PullVector(m_nRD);
}
//0A
void CMA_EE::PCGTB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_CmpGtB();
PullVector(m_nRD);
}
//10
void CMA_EE::PADDSW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddWSS();
PullVector(m_nRD);
}
//11
void CMA_EE::PSUBSW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubWSS();
PullVector(m_nRD);
}
//12
void CMA_EE::PEXTLW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_UnpackLowerWD();
PullVector(m_nRD);
}
//13
void CMA_EE::PPACW()
{
if(m_nRD == 0) return;
//RS = A
//RT = B
//RD = A2 A0 B2 B0
//The order of operations here is quite important because RS, RT and RD can be equal
//- Elements 1 and 3 in the destination register are unused in the source registers so, it's safe to write them first
//- Element 2 in the destination register isn't used after the previous operations, so it's safe to override
//- Only element 0 remains which is filled with element 0 from source, which is safe even if registers are the same
//1
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[2]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[1]));
//3
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[2]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[3]));
//2
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRS].nV[0]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[2]));
//0
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[0]));
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[0]));
}
//14
void CMA_EE::PADDSH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddHSS();
PullVector(m_nRD);
}
//15
void CMA_EE::PSUBSH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubHSS();
PullVector(m_nRD);
}
//16
void CMA_EE::PEXTLH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_UnpackLowerHW();
PullVector(m_nRD);
}
//17
void CMA_EE::PPACH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_PackWH();
PullVector(m_nRD);
}
//18
void CMA_EE::PADDSB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddBSS();
PullVector(m_nRD);
}
//1A
void CMA_EE::PEXTLB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_UnpackLowerBH();
PullVector(m_nRD);
}
//1B
void CMA_EE::PPACB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_PackHB();
PullVector(m_nRD);
}
//1E
void CMA_EE::PEXT5()
{
if(m_nRD == 0) return;
for(unsigned int i = 0; i < 4; i )
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x001F);
m_codeGen->And();
m_codeGen->Shl(3);
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x03E0);
m_codeGen->And();
m_codeGen->Shl(6);
m_codeGen->Or();
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x7C00);
m_codeGen->And();
m_codeGen->Shl(9);
m_codeGen->Or();
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x8000);
m_codeGen->And();
m_codeGen->Shl(16);
m_codeGen->Or();
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[i]));
}
}
//1F
void CMA_EE::PPAC5()
{
if(m_nRD == 0) return;
for(unsigned int i = 0; i < 4; i )
{
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x80000000);
m_codeGen->And();
m_codeGen->Srl(16);
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x00F80000);
m_codeGen->And();
m_codeGen->Srl(9);
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x0000F800);
m_codeGen->And();
m_codeGen->Srl(6);
m_codeGen->PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]));
m_codeGen->PushCst(0x000000F8);
m_codeGen->And();
m_codeGen->Srl(3);
m_codeGen->Or();
m_codeGen->Or();
m_codeGen->Or();
m_codeGen->PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD].nV[i]));
}
}
//////////////////////////////////////////////////
//MMI1 Opcodes
//////////////////////////////////////////////////
//01
void CMA_EE::PABSW()
{
if(m_nRD == 0) return;
//RD = (RT != 0x80000000) ? |RT| : 0x7FFFFFFF;
for(unsigned int i = 0; i < 4; i )
{
auto srcOffset = offsetof(CMIPS, m_State.nGPR[m_nRT].nV[i]);
auto dstOffset = offsetof(CMIPS, m_State.nGPR[m_nRD].nV[i]);
m_codeGen->PushRel(srcOffset);
m_codeGen->PushCst(0x80000000);
m_codeGen->BeginIf(Jitter::CONDITION_EQ);
{
m_codeGen->PushCst(0x7FFFFFFF);
m_codeGen->PullRel(dstOffset);
}
m_codeGen->Else();
{
m_codeGen->PushRel(srcOffset);
m_codeGen->PushCst(0);
m_codeGen->BeginIf(Jitter::CONDITION_LT);
{
m_codeGen->PushCst(0);
m_codeGen->PushRel(srcOffset);
m_codeGen->Sub();
m_codeGen->PullRel(dstOffset);
}
m_codeGen->Else();
{
m_codeGen->PushRel(srcOffset);
m_codeGen->PullRel(dstOffset);
}
m_codeGen->EndIf();
}
m_codeGen->EndIf();
}
}
//02
void CMA_EE::PCEQW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_CmpEqW();
PullVector(m_nRD);
}
//03
void CMA_EE::PMINW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_MinW();
PullVector(m_nRD);
}
//05
void CMA_EE::PABSH()
{
if(m_nRD == 0) return;
//RD = (RT != 0x8000) ? |RT| : 0x7FFF;
//Generate mask for overflow
m_codeGen->MD_PushCstExpand(0x80008000U);
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->MD_CmpEqH();
uint32 isOverflowMaskCursor = m_codeGen->GetTopCursor();
//Generate mask for positive number
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->MD_PushCstExpand(0xFFFFFFFFU);
m_codeGen->MD_CmpGtH();
uint32 isPositiveMaskCursor = m_codeGen->GetTopCursor();
//Compute neg(rt)
m_codeGen->MD_PushCstExpand(0U);
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->MD_SubH();
//Mask result with not(isPositiveMaskCursor)
m_codeGen->PushCursor(isPositiveMaskCursor);
m_codeGen->MD_Not();
m_codeGen->MD_And();
//Mask input with isPositiveMaskCursor and combine with neg(rt)
m_codeGen->MD_PushRel(offsetof(CMIPS, m_State.nGPR[m_nRT]));
m_codeGen->PushCursor(isPositiveMaskCursor);
m_codeGen->MD_And();
m_codeGen->MD_Or();
//Mask result with not(isOverflowMaskCursor)
m_codeGen->PushCursor(isOverflowMaskCursor);
m_codeGen->MD_Not();
m_codeGen->MD_And();
//Combine with overflow
m_codeGen->PushCursor(isOverflowMaskCursor);
m_codeGen->MD_PushCstExpand(0x7FFF7FFFU);
m_codeGen->MD_And();
m_codeGen->MD_Or();
//Save result
m_codeGen->MD_PullRel(offsetof(CMIPS, m_State.nGPR[m_nRD]));
//Discard our masks
m_codeGen->PullTop();
m_codeGen->PullTop();
}
//06
void CMA_EE::PCEQH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_CmpEqH();
PullVector(m_nRD);
}
//07
void CMA_EE::PMINH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_MinH();
PullVector(m_nRD);
}
//0A
void CMA_EE::PCEQB()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_CmpEqB();
PullVector(m_nRD);
}
//10
void CMA_EE::PADDUW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddWUS();
PullVector(m_nRD);
}
//11
void CMA_EE::PSUBUW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubWUS();
PullVector(m_nRD);
}
//12
void CMA_EE::PEXTUW()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_UnpackUpperWD();
PullVector(m_nRD);
}
//14
void CMA_EE::PADDUH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_AddHUS();
PullVector(m_nRD);
}
//15
void CMA_EE::PSUBUH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_SubHUS();
PullVector(m_nRD);
}
//16
void CMA_EE::PEXTUH()
{
if(m_nRD == 0) return;
PushVector(m_nRS);
PushVector(m_nRT);
m_codeGen->MD_UnpackUpperHW();