void Assembler::asm_store32(LOpcode op, LIns *value, int32_t dr, LIns *base) {
switch (op) {
case LIR_sti:
// handled by mainline code below for now
break;
case LIR_stb:
case LIR_sts:
NanoAssertMsg(0, "NJ_EXPANDED_LOADSTORE_SUPPORTED not yet supported for this architecture");
return;
default:
NanoAssertMsg(0, "asm_store32 should never receive this LIR opcode");
return;
}
Register rs = findRegFor(value, GpRegs);
Register ra = value == base ? rs : getBaseReg(LIR_sti, base, dr, GpRegs & ~rmask(rs));
#if !PEDANTIC
if (isS16(dr)) {
STW(rs, dr, ra);
return;
}
#endif
// general case store, any offset size
STWX(rs, ra, R0);
asm_li(R0, dr);
}
void PPCXEmitter::LoadFloatSwap(PPCReg FRt, PPCReg Base, PPCReg offset) {
// used for swapping float ...
u32 tmp;
// Load Value into a temp REG
LWBRX(R6, Base, offset);
// Save it in tmp
MOVI2R(R7, (u32)&tmp);
STW(R6, R7);
// Load the final value
LFS(FRt, R7, 0);
}
void Assembler::asm_store32(LIns *value, int32_t dr, LIns *base) {
Register rs = findRegFor(value, GpRegs);
Register ra = value == base ? rs : getBaseReg(LIR_sti, base, dr, GpRegs & ~rmask(rs));
#if !PEDANTIC
if (isS16(dr)) {
STW(rs, dr, ra);
return;
}
#endif
// general case store, any offset size
STWX(rs, ra, R0);
asm_li(R0, dr);
}
void PPCXEmitter::Prologue() {
// Save regs
u32 regSize = 8; // 4 in 32bit system
u32 stackFrameSize = 32*32;//(35 - 12) * regSize;
// Write Prologue (setup stack frame etc ...)
// Save Lr
MFLR(R12);
for(int i = 14; i < 32; i ++) {
STD((PPCReg)i, R1, -((33 - i) * regSize));
}
// Save r12
STW(R12, R1, -0x8);
// allocate stack
STWU(R1, R1, -stackFrameSize);
}
void PPCXEmitter::Prologue() {
// Save regs
u32 regSize = 8; // 4 in 32bit system
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(R10, (u32)&_fprTmp);
// Save fpr
for(int i = 14; i < 32; i ++) {
SFD((PPCReg)i, R10, i * regSize);
}
#endif
}
void PPCXEmitter::MOVI2F (PPCReg dest, float imm, bool negate) {
u32 tmp;
union convert {
unsigned int i;
float f;
} fc;
fc.f = imm;
MOVI2R(R6, fc.i);
// R7 = imm
MOVI2R(R7, (u32)&tmp);
STW(R6, R7);
// dest = R7
LFS(dest, R7, 0);
if (negate == true) {
FNEG(dest, dest);
}
}
