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Core: Make sure precision is set to 53bit

This commit is contained in:
zilmar 2024-03-07 20:52:24 +10:30
parent 290040d945
commit 97ec1f533b
1 changed files with 7 additions and 5 deletions
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12
Source/Project64-core/N64System/Recompiler/x86/x86RegInfo.cpp
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@ -287,22 +287,24 @@ void CX86RegInfo::FixRoundModel(FPU_ROUND RoundMethod)
m_Assembler.fpuStoreControl(&m_fpuControl, "m_fpuControl"); m_Assembler.fpuStoreControl(&m_fpuControl, "m_fpuControl");
asmjit::x86::Gp reg = Map_TempReg(x86Reg_Unknown, -1, false, false); asmjit::x86::Gp reg = Map_TempReg(x86Reg_Unknown, -1, false, false);
m_Assembler.MoveVariableToX86reg(reg, &m_fpuControl, "m_fpuControl"); m_Assembler.MoveVariableToX86reg(reg, &m_fpuControl, "m_fpuControl");
m_Assembler.and_(reg, 0xF3FF); m_Assembler.and_(reg, 0xF0FF);
uint16_t Precision = 0x200;
if (RoundMethod == RoundDefault) if (RoundMethod == RoundDefault)
{ {
asmjit::x86::Gp RoundReg = Map_TempReg(x86Reg_Unknown, -1, false, false); asmjit::x86::Gp RoundReg = Map_TempReg(x86Reg_Unknown, -1, false, false);
m_Assembler.OrVariableToX86Reg(reg, &CX86RecompilerOps::m_RoundingModeValue, "m_RoundingModeValue"); m_Assembler.OrVariableToX86Reg(reg, &CX86RecompilerOps::m_RoundingModeValue, "m_RoundingModeValue");
m_Assembler.or_(reg, Precision);
SetX86Protected(GetIndexFromX86Reg(RoundReg), false); SetX86Protected(GetIndexFromX86Reg(RoundReg), false);
} }
else else
{ {
switch (RoundMethod) switch (RoundMethod)
{ {
case RoundTruncate: m_Assembler.or_(reg, 0x0C00); break; case RoundTruncate: m_Assembler.or_(reg, 0x0C00 | Precision); break;
case RoundNearest: m_Assembler.or_(reg, 0x0000); break; case RoundNearest: m_Assembler.or_(reg, 0x0000 | Precision); break;
case RoundDown: m_Assembler.or_(reg, 0x0400); break; case RoundDown: m_Assembler.or_(reg, 0x0400 | Precision); break;
case RoundUp: m_Assembler.or_(reg, 0x0800); break; case RoundUp: m_Assembler.or_(reg, 0x0800 | Precision); break;
default: default:
g_Notify->DisplayError("Unknown rounding model"); g_Notify->DisplayError("Unknown rounding model");
} }