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[jit] save fpr, less crashes ?

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Ced2911 2013-09-14 09:37:32 +02:00 committed by Unknown W. Brackets
parent 2c2ea9c417
commit 08595f55a6
1 changed files with 44 additions and 5 deletions
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49
Common/ppcEmitter.cpp
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@ -559,14 +559,12 @@ namespace PpcGen {
D_FORM(48, FRt, Ra, offset);
}
void PPCXEmitter::LFD (PPCReg FRt, PPCReg Ra, unsigned short offset) {
Break();
D_FORM(50, FRt, Ra, offset);
}
void PPCXEmitter::SFS (PPCReg FRt, PPCReg Ra, unsigned short offset) {
D_FORM(52, FRt, Ra, offset);
}
void PPCXEmitter::SFD (PPCReg FRt, PPCReg Ra, unsigned short offset) {
Break();
D_FORM(54, FRt, Ra, offset);
}
@ -733,35 +731,66 @@ namespace PpcGen {
// Prologue / epilogue
/** save/load fpr in a static buffer ... **/
static double _fprTmp[32];
void PPCXEmitter::Prologue() {
// Save regs
u32 regSize = 8; // 4 in 32bit system
u32 stackFrameSize = 32*32;//(35 - 12) * regSize;
u32 stackFrameSize = 0x1F0;
// Write Prologue (setup stack frame etc ...)
// Save Lr
MFLR(R12);
// Save gpr
for(int i = 14; i < 32; i ++) {
STD((PPCReg)i, R1, -((33 - i) * regSize));
}
// Save r12
STW(R12, R1, -0x8);
#if 0
// add fpr frame
ADDI(R12, R1, -0x98);
// Load fpr
for(int i = 14; i < 32; i ++) {
SFD((PPCReg)i, R1, -((32 - i) * regSize));
}
#endif
// allocate stack
STWU(R1, R1, -stackFrameSize);
#if 1
// load fpr buff
MOVI2R(R5, (u32)&_fprTmp);
// Save fpr
for(int i = 14; i < 32; i ++) {
SFD((PPCReg)i, R5, i * regSize);
}
#endif
}
void PPCXEmitter::Epilogue() {
u32 regSize = 8; // 4 in 32bit system
u32 stackFrameSize = 32*32;//(35 - 12) * regSize;
u32 stackFrameSize = 0x1F0;
//Break();
// Write Epilogue (restore stack frame, return)
// free stack
ADDI(R1, R1, stackFrameSize);
#if 0
ADDI(R12, R1, -0x98);
// Restore regs
// Restore fpr
for(int i = 14; i < 32; i ++) {
LFD((PPCReg)i, R1, -((32 - i) * regSize));
}
#endif
// Restore gpr
for(int i = 14; i < 32; i ++) {
LD((PPCReg)i, R1, -((33 - i) * regSize));
}
@ -771,6 +800,16 @@ namespace PpcGen {
// Restore Lr
MTLR(R12);
#if 1
// load fpr buff
MOVI2R(R5, (u32)&_fprTmp);
// Load fpr
for(int i = 14; i < 32; i ++) {
LFD((PPCReg)i, R5, i * regSize);
}
#endif
}
// Others ...