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Rewrote the save registers and load registers functions #2

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Rewrote the save registers and load registers functions #2

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36 changes: 20 additions & 16 deletions PowerPC Assembly Functions/PowerPC Assembly Functions.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -750,20 +750,21 @@ void SaveRegisters(vector<int> FPRegs)
{
FPPushRecords = FPRegs;
int stackSize = 29 * 4 + FPRegs.size() * 8 + 8 + 8;
STW(0, 1, -4);
STWU(1, 1, -stackSize)

STW(0, 1, 0x8);
MFLR(0);
STW(0, 1, 4);
STW(0, 1, stackSize+0x4);
MFCTR(0);
STW(0, 1, -8);
STW(0, 1, 0xC);
STMW(3, 1, 0x10);

int offset = -8;
int offset = 29*4 + 8 + 8;
for (int x : FPRegs) {
offset -= 8;
offset += 8;
STFD(x, 1, offset);
}

STWU(1, 1, -stackSize);
STMW(3, 1, 8);
}

void SaveRegisters(int NumFPRegs)
Expand All @@ -777,20 +778,23 @@ void RestoreRegisters()
{
int stackSize = 29 * 4 + FPPushRecords.size() * 8 + 8 + 8;

LMW(3, 1, 8);
ADDI(1, 1, stackSize);

int offset = -8;
int offset = 29*4+0x8+0x8;
for (int x : FPPushRecords) {
offset -= 8;
offset += 8;
LFD(x, 1, offset);
}

LWZ(0, 1, -8);
MTCTR(0);
LWZ(0, 1, 4);
LWZ(0, 1, stackSize+0x4);
MTLR(0);
LWZ(0, 1, -4);
LWZ(0, 1, 0xC);
MTCTR(0);

LWZ(0, 1, 0x8);
LMW(3, 1, 0x10);


ADDI(1, 1, stackSize);
}

void SetRegs(int StartReg, vector<int> values)
Expand Down Expand Up @@ -2504,4 +2508,4 @@ void XORIS(int DestReg, int SourceReg, int Immediate)
OpHex |= GetOpSegment(DestReg, 5, 15);
OpHex |= GetOpSegment(Immediate, 16, 31);
WriteIntToFile(OpHex);
}
}