ARMReg ArmRegCache::BindToRegister(u32 preg)
{
_assert_msg_(DYNA_REC, regs[preg].GetType() == REG_IMM, "Can't BindToRegister with a REG");
u32 lastRegIndex = GetLeastUsedRegister(false);
u32 freeRegIndex;
if (FindFreeRegister(freeRegIndex))
{
emit->MOVI2R(ArmCRegs[freeRegIndex].Reg, regs[preg].GetImm());
ArmCRegs[freeRegIndex].PPCReg = preg;
ArmCRegs[freeRegIndex].LastLoad = 0;
regs[preg].LoadToReg(freeRegIndex);
return ArmCRegs[freeRegIndex].Reg;
}
else
{
emit->STR(ArmCRegs[lastRegIndex].Reg, R9, PPCSTATE_OFF(gpr) + ArmCRegs[lastRegIndex].PPCReg * 4);
emit->MOVI2R(ArmCRegs[lastRegIndex].Reg, regs[preg].GetImm());
regs[ArmCRegs[lastRegIndex].PPCReg].Flush();
ArmCRegs[lastRegIndex].PPCReg = preg;
ArmCRegs[lastRegIndex].LastLoad = 0;
regs[preg].LoadToReg(lastRegIndex);
return ArmCRegs[lastRegIndex].Reg;
}
}
ARMReg ArmFPRCache::GetPPCReg(u32 preg, bool PS1, bool preLoad)
{
u32 lastRegIndex = GetLeastUsedRegister(true);
if (_regs[preg][PS1].GetType() != REG_NOTLOADED)
{
u8 a = _regs[preg][PS1].GetRegIndex();
ArmCRegs[a].LastLoad = 0;
if (_regs[preg][PS1].GetType() == REG_AWAY && preLoad)
{
s16 offset = PPCSTATE_OFF(ps) + (preg * 16) + (PS1 ? 8 : 0);
emit->VLDR(ArmCRegs[a].Reg, R9, offset);
_regs[preg][PS1].LoadToReg(a);
}
return ArmCRegs[a].Reg;
}
u32 regindex;
if (FindFreeRegister(regindex))
{
s16 offset = PPCSTATE_OFF(ps) + (preg * 16) + (PS1 ? 8 : 0);
emit->VLDR(ArmCRegs[regindex].Reg, R9, offset);
ArmCRegs[regindex].PPCReg = preg;
ArmCRegs[regindex].LastLoad = 0;
_regs[preg][PS1].LoadToReg(regindex);
return ArmCRegs[regindex].Reg;
}
// Alright, we couldn't get a free space, dump that least used register
s16 offsetOld = PPCSTATE_OFF(ps) + (ArmCRegs[lastRegIndex].PPCReg * 16) + (ArmCRegs[lastRegIndex].PS1 ? 8 : 0);
s16 offsetNew = PPCSTATE_OFF(ps) + (preg * 16) + (PS1 ? 8 : 0);
emit->VSTR(ArmCRegs[lastRegIndex].Reg, R9, offsetOld);
emit->VLDR(ArmCRegs[lastRegIndex].Reg, R9, offsetNew);
_regs[ArmCRegs[lastRegIndex].PPCReg][PS1].Flush();
ArmCRegs[lastRegIndex].PPCReg = preg;
ArmCRegs[lastRegIndex].LastLoad = 0;
ArmCRegs[lastRegIndex].PS1 = PS1;
_regs[preg][PS1].LoadToReg(lastRegIndex);
return ArmCRegs[lastRegIndex].Reg;
}
ARMReg ArmRegCache::R(u32 preg)
{
if (regs[preg].GetType() == REG_IMM)
return BindToRegister(preg);
u32 lastRegIndex = GetLeastUsedRegister(true);
// Check if already Loaded
if (regs[preg].GetType() == REG_REG)
{
u8 a = regs[preg].GetRegIndex();
ArmCRegs[a].LastLoad = 0;
return ArmCRegs[a].Reg;
}
// Check if we have a free register
u32 regindex;
if (FindFreeRegister(regindex))
{
emit->LDR(ArmCRegs[regindex].Reg, R9, PPCSTATE_OFF(gpr) + preg * 4);
ArmCRegs[regindex].PPCReg = preg;
ArmCRegs[regindex].LastLoad = 0;
regs[preg].LoadToReg(regindex);
return ArmCRegs[regindex].Reg;
}
// Alright, we couldn't get a free space, dump that least used register
emit->STR(ArmCRegs[lastRegIndex].Reg, R9, PPCSTATE_OFF(gpr) + ArmCRegs[lastRegIndex].PPCReg * 4);
emit->LDR(ArmCRegs[lastRegIndex].Reg, R9, PPCSTATE_OFF(gpr) + preg * 4);
regs[ArmCRegs[lastRegIndex].PPCReg].Flush();
ArmCRegs[lastRegIndex].PPCReg = preg;
ArmCRegs[lastRegIndex].LastLoad = 0;
regs[preg].LoadToReg(lastRegIndex);
return ArmCRegs[lastRegIndex].Reg;
}