ShuriZma
/
duckstation
mirror of https://github.com/stenzek/duckstation
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

CPU/PGXP: Eliminate extra copy in SLT/SLTU

This commit is contained in:
Stenzek 2024-08-20 18:35:49 +10:00
parent 8629efc39c
commit a764954977
No known key found for this signature in database
1 changed files with 18 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
src/core/cpu_pgxp.cpp
View File

@ -1093,16 +1093,15 @@ void CPU::PGXP::CPU_SLT(Instruction instr, u32 rsVal, u32 rtVal)
// Rd = Rs < Rt (signed)
PGXP_value& prsVal = ValidateAndGetRsValue(instr, rsVal);
PGXP_value& prtVal = ValidateAndGetRtValue(instr, rtVal);
PGXP_value ret = prsVal;
ret.x = (prsVal.GetValidY(rsVal) < prtVal.GetValidY(rtVal) ||
f16Unsign(prsVal.GetValidX(rsVal)) < f16Unsign(prtVal.GetValidX(rtVal))) ?
1.f :
0.f;
ret.y = 0.f;
ret.flags |= VALID_TAINTED_Z | VALID_X | VALID_Y;
ret.value = BoolToUInt32(static_cast<s32>(rsVal) < static_cast<s32>(rtVal));
GetRdValue(instr) = ret;
PGXP_value& prdVal = GetRdValue(instr);
prdVal.x = (prsVal.GetValidY(rsVal) < prtVal.GetValidY(rtVal) ||
f16Unsign(prsVal.GetValidX(rsVal)) < f16Unsign(prtVal.GetValidX(rtVal))) ?
1.0f :
0.0f;
prdVal.y = 0.0f;
prdVal.z = prsVal.z;
prdVal.flags = prsVal.flags | VALID_TAINTED_Z | VALID_X | VALID_Y;
prdVal.value = BoolToUInt32(static_cast<s32>(rsVal) < static_cast<s32>(rtVal));
}
void CPU::PGXP::CPU_SLTU(Instruction instr, u32 rsVal, u32 rtVal)
@ -1112,16 +1111,15 @@ void CPU::PGXP::CPU_SLTU(Instruction instr, u32 rsVal, u32 rtVal)
// Rd = Rs < Rt (unsigned)
PGXP_value& prsVal = ValidateAndGetRsValue(instr, rsVal);
PGXP_value& prtVal = ValidateAndGetRtValue(instr, rtVal);
PGXP_value ret = prsVal;
ret.x = (f16Unsign(prsVal.GetValidY(rsVal)) < f16Unsign(prtVal.GetValidY(rtVal)) ||
f16Unsign(prsVal.GetValidX(rsVal)) < f16Unsign(prtVal.GetValidX(rtVal))) ?
1.f :
0.f;
ret.y = 0.f;
ret.flags |= VALID_TAINTED_Z | VALID_X | VALID_Y;
ret.value = BoolToUInt32(rsVal < rtVal);
GetRdValue(instr) = ret;
PGXP_value& prdVal = GetRdValue(instr);
prdVal.x = (f16Unsign(prsVal.GetValidY(rsVal)) < f16Unsign(prtVal.GetValidY(rtVal)) ||
f16Unsign(prsVal.GetValidX(rsVal)) < f16Unsign(prtVal.GetValidX(rtVal))) ?
1.0f :
0.0f;
prdVal.y = 0.0f;
prdVal.z = prsVal.z;
prdVal.flags = prsVal.flags | VALID_TAINTED_Z | VALID_X | VALID_Y;
prdVal.value = BoolToUInt32(rsVal < rtVal);
}
////////////////////////////////////