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[CPU] Implemented instructions: rldclx, rldcrx

This commit is contained in:
Rados??aw Gli??ski 2019-09-22 22:20:16 +02:00 committed by Justin Moore
parent 0b3cdf2aaa
commit 404aa82147
1 changed files with 44 additions and 4 deletions
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48
src/xenia/cpu/ppc/ppc_emit_alu.cc
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@ -858,13 +858,53 @@ int InstrEmit_xoris(PPCHIRBuilder& f, const InstrData& i) {
// Integer rotate (A-6)
int InstrEmit_rldclx(PPCHIRBuilder& f, const InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// n <- rB[58:63]
// r <- ROTL[64](rS, n)
// b <- mb[5] || mb[0:4]
// m <- MASK(b, 63)
// rA <- r & m
Value* n = f.And(f.Truncate(f.LoadGPR(i.MDS.RB), INT8_TYPE),
f.LoadConstantInt8(0x3F));
uint32_t mb = (i.MDS.MB5 << 5) | i.MDS.MB;
uint64_t m = XEMASK(mb, 63);
Value* v = f.LoadGPR(i.MDS.RT);
v = f.RotateLeft(v, n);
if (m != 0xFFFFFFFFFFFFFFFF) {
v = f.And(v, f.LoadConstantUint64(m));
}
f.StoreGPR(i.MDS.RA, v);
if (i.MDS.Rc) {
f.UpdateCR(0, v);
}
return 0;
}
int InstrEmit_rldcrx(PPCHIRBuilder& f, const InstrData& i) {
XEINSTRNOTIMPLEMENTED();
return 1;
// n <- rB[58:63]
// r <- ROTL[64](rS, n)
// b <- mb[5] || mb[0:4]
// m <- MASK(0, b)
// rA <- r & m
Value* n = f.And(f.Truncate(f.LoadGPR(i.MDS.RB), INT8_TYPE),
f.LoadConstantInt8(0x3F));
uint32_t mb = (i.MDS.MB5 << 5) | i.MDS.MB;
uint64_t m = XEMASK(0, mb);
Value* v = f.LoadGPR(i.MDS.RT);
v = f.RotateLeft(v, n);
if (m != 0xFFFFFFFFFFFFFFFF) {
v = f.And(v, f.LoadConstantUint64(m));
}
f.StoreGPR(i.MDS.RA, v);
if (i.MDS.Rc) {
f.UpdateCR(0, v);
}
return 0;
}
int InstrEmit_rldicx(PPCHIRBuilder& f, const InstrData& i) {