// Move from Special Purpose Register
static bool
mfspr(PPCEmuAssembler& a, Instruction instr)
{
auto spr = decodeSPR(instr);
auto dst = a.loadRegisterWrite(a.gpr[instr.rD]);
switch (spr) {
case SPR::XER:
a.mov(dst, a.loadRegisterRead(a.xer));
break;
case SPR::LR:
a.mov(dst, a.lrMem);
break;
case SPR::CTR:
a.mov(dst, a.ctrMem);
break;
case SPR::UGQR0:
a.mov(dst, a.loadRegisterRead(a.gqr[0]));
break;
case SPR::UGQR1:
a.mov(dst, a.loadRegisterRead(a.gqr[1]));
break;
case SPR::UGQR2:
a.mov(dst, a.loadRegisterRead(a.gqr[2]));
break;
case SPR::UGQR3:
a.mov(dst, a.loadRegisterRead(a.gqr[3]));
break;
case SPR::UGQR4:
a.mov(dst, a.loadRegisterRead(a.gqr[4]));
break;
case SPR::UGQR5:
a.mov(dst, a.loadRegisterRead(a.gqr[5]));
break;
case SPR::UGQR6:
a.mov(dst, a.loadRegisterRead(a.gqr[6]));
break;
case SPR::UGQR7:
a.mov(dst, a.loadRegisterRead(a.gqr[7]));
break;
case SPR::UPIR:
a.mov(dst, a.coreIdMem);
break;
default:
decaf_abort(fmt::format("Invalid mfspr SPR {}", static_cast<uint32_t>(spr)));
}
return true;
}
// Move from Special Purpose Register
static void
mfspr(ThreadState *state, Instruction instr)
{
auto spr = decodeSPR(instr);
auto value = 0u;
switch (spr) {
case SprEncoding::XER:
value = state->xer.value;
break;
case SprEncoding::LR:
value = state->lr;
break;
case SprEncoding::CTR:
value = state->ctr;
break;
case SprEncoding::GQR0:
value = state->gqr[0].value;
break;
case SprEncoding::GQR1:
value = state->gqr[1].value;
break;
case SprEncoding::GQR2:
value = state->gqr[2].value;
break;
case SprEncoding::GQR3:
value = state->gqr[3].value;
break;
case SprEncoding::GQR4:
value = state->gqr[4].value;
break;
case SprEncoding::GQR5:
value = state->gqr[5].value;
break;
case SprEncoding::GQR6:
value = state->gqr[6].value;
break;
case SprEncoding::GQR7:
value = state->gqr[7].value;
break;
default:
gLog->error("Invalid mfspr SPR {}", static_cast<uint32_t>(spr));
}
state->gpr[instr.rD] = value;
}
// Move from Time Base Register
static void
mftb(ThreadState *state, Instruction instr)
{
auto tbr = decodeSPR(instr);
auto value = 0u;
switch (tbr) {
case SprEncoding::TBL:
value = state->tbl;
break;
case SprEncoding::TBU:
value = state->tbu;
break;
default:
gLog->error("Invalid mftb TBR {}", static_cast<uint32_t>(tbr));
}
state->gpr[instr.rD] = value;
}