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Core: Fix up CX86RecompilerOps::COP1_D_MUL so it can work with exceptions

This commit is contained in:
zilmar 2024-02-29 15:16:29 +10:30
parent 25dc3ed36f
commit f7aa6ef6cb
1 changed files with 61 additions and 14 deletions
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53
Source/Project64-core/N64System/Recompiler/x86/x86RecompilerOps.cpp
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@ -8353,6 +8353,31 @@ void CX86RecompilerOps::COP1_D_MUL()
uint32_t Reg1 = m_Opcode.ft == m_Opcode.fd ? m_Opcode.ft : m_Opcode.fs;
uint32_t Reg2 = m_Opcode.ft == m_Opcode.fd ? m_Opcode.fs : m_Opcode.ft;
if (FpuExceptionInRecompiler())
{
CompileInitFpuOperation(CRegInfo::RoundDefault);
if (m_RegWorkingSet.RegInStack(m_Opcode.fs, CRegInfo::FPU_Any) ||
m_RegWorkingSet.RegInStack(m_Opcode.ft, CRegInfo::FPU_Any) ||
m_RegWorkingSet.RegInStack(m_Opcode.fd, CRegInfo::FPU_Any))
{
g_Notify->BreakPoint(__FILE__, __LINE__);
return;
}
asmjit::x86::Gp TempReg = m_RegWorkingSet.FPRValuePointer(Reg1, CRegInfo::FPU_Double);
CompileCheckFPUInput(TempReg, FpuOpSize_64bit);
m_RegWorkingSet.SetX86Protected(GetIndexFromX86Reg(TempReg), false);
TempReg = m_RegWorkingSet.FPRValuePointer(Reg2, CRegInfo::FPU_Double);
CompileCheckFPUInput(TempReg, FpuOpSize_64bit);
m_RegWorkingSet.PrepareFPTopToBe(m_Opcode.fd, Reg1, CRegInfo::FPU_Double);
m_Assembler.fmul(asmjit::x86::qword_ptr(TempReg));
m_RegWorkingSet.SetX86Protected(GetIndexFromX86Reg(TempReg), false);
m_Assembler.mov(TempReg, (uint64_t)&m_TempValue64);
m_Assembler.fpuStoreQwordFromX86Reg(m_RegWorkingSet.StackTopPos(), TempReg, false);
CompileCheckFPUResult64(TempReg);
m_RegWorkingSet.SetFPTopAs(m_Opcode.fd);
}
else
{
CompileCop1Test();
m_RegWorkingSet.FixRoundModel(CRegInfo::RoundDefault);
@ -8369,6 +8394,7 @@ void CX86RecompilerOps::COP1_D_MUL()
m_Assembler.MoveVariableToX86reg(TempReg, (uint8_t *)&m_Reg.m_FPR_D[Reg2], stdstr_f("_FPR_D[%d]", Reg2).c_str());
m_Assembler.fmul(asmjit::x86::qword_ptr(TempReg));
}
}
}
void CX86RecompilerOps::COP1_D_DIV()
@ -9068,21 +9094,24 @@ void CX86RecompilerOps::CompileCheckFPUResult64(asmjit::x86::Gp RegPointer)
m_Assembler.mov(RegPointerValue, RegPointer);
RegPointer = RegPointerValue;
}
asmjit::x86::Gp TempReg2 = m_RegWorkingSet.Map_TempReg(x86Reg_Unknown, -1, false, false);
m_Assembler.fnstsw(asmjit::x86::ax);
m_Assembler.and_(asmjit::x86::ax, 0x3D);
m_Assembler.cmp(asmjit::x86::ax, 0);
asmjit::Label FpuExceptionJump = m_Assembler.newLabel();
m_Assembler.JnzLabel("FpuException", FpuExceptionJump);
m_Assembler.mov(TempReg, asmjit::x86::dword_ptr(RegPointer, 4));
m_Assembler.and_(TempReg, 0x7FF00000);
m_Assembler.mov(TempReg2, asmjit::x86::dword_ptr(RegPointer, 4));
m_Assembler.and_(TempReg2, 0x7FF00000);
asmjit::Label isSubNormal = m_Assembler.newLabel();
m_Assembler.JzLabel("isSubNormal", isSubNormal);
m_Assembler.cmp(TempReg, 0x7FF00000);
m_Assembler.cmp(TempReg2, 0x7FF00000);
asmjit::Label DoNoModify = m_Assembler.newLabel();
m_Assembler.JneLabel("DoNotModify", DoNoModify);
m_Assembler.bind(isSubNormal);
m_Assembler.bind(FpuExceptionJump);
m_Assembler.mov(TempReg, asmjit::x86::dword_ptr(RegPointer, 4));
m_Assembler.mov(TempReg2, asmjit::x86::dword_ptr(RegPointer));
m_RegWorkingSet.BeforeCallDirect();
if (m_PipelineStage == PIPELINE_STAGE_JUMP || m_PipelineStage == PIPELINE_STAGE_DELAY_SLOT)
{
@ -9100,6 +9129,24 @@ void CX86RecompilerOps::CompileCheckFPUResult64(asmjit::x86::Gp RegPointer)
{
m_Assembler.MoveConstToVariable(&g_System->m_PipelineStage, "System->m_PipelineStage", PIPELINE_STAGE_NORMAL);
}
asmjit::Label ValueDiffernt = m_Assembler.newLabel();
asmjit::Label ValueSame = m_Assembler.newLabel();
m_Assembler.cmp(TempReg, asmjit::x86::dword_ptr((uint64_t)((uint8_t *)&m_TempValue64 + 4)));
m_Assembler.jne(ValueDiffernt);
m_Assembler.cmp(TempReg2, asmjit::x86::dword_ptr((uint64_t)&m_TempValue64));
m_Assembler.je(ValueSame);
m_Assembler.bind(ValueDiffernt);
ExitRegSet = m_RegWorkingSet;
m_Assembler.mov(TempReg2, asmjit::x86::dword_ptr(RegPointer));
m_Assembler.mov(TempReg, asmjit::x86::dword_ptr(RegPointer, 4));
asmjit::x86::Gp TempRegFPR_D = ExitRegSet.Map_TempReg(x86Reg_Unknown, -1, false, false);
m_Assembler.MoveVariableToX86reg(TempRegFPR_D, &m_Reg.m_FPR_D[m_Opcode.fd], stdstr_f("m_FPR_D[%d]", m_Opcode.fd).c_str());
m_Assembler.mov(asmjit::x86::dword_ptr(TempRegFPR_D), TempReg2);
m_Assembler.mov(asmjit::x86::dword_ptr(TempRegFPR_D, 4), TempReg);
ExitRegSet.SetBlockCycleCount(ExitRegSet.GetBlockCycleCount() + g_System->CountPerOp());
CompileExit(m_CompilePC + 4, m_CompilePC + 4, ExitRegSet, ExitReason_Normal, false, &CX86Ops::JmpLabel);
m_Assembler.bind(ValueSame);
m_Assembler.bind(DoNoModify);
}