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Implemented instructions: rldclx, rldcrx

This commit is contained in:
Radosław Gliński 2019-09-22 22:20:16 +02:00 committed by illusion98
parent b5741e7c8b
commit 55fc6fc3ca
1 changed files with 48 additions and 4 deletions
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52
src/xenia/cpu/ppc/ppc_emit_alu.cc
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@ -858,13 +858,57 @@ 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* sh =
f.And(f.Truncate(f.LoadGPR(i.X.RB), INT8_TYPE), f.LoadConstantInt8(0x7F));
uint32_t mb = (i.MD.MB5 << 5) | i.MD.MB;
uint64_t m = XEMASK(mb, 63);
Value* v = f.LoadGPR(i.MD.RT);
if (sh) {
v = f.RotateLeft(v, sh);
}
if (m != 0xFFFFFFFFFFFFFFFF) {
v = f.And(v, f.LoadConstantUint64(m));
}
f.StoreGPR(i.MD.RA, v);
if (i.MD.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* sh =
f.And(f.Truncate(f.LoadGPR(i.X.RB), INT8_TYPE), f.LoadConstantInt8(0x7F));
uint32_t mb = (i.MD.MB5 << 5) | i.MD.MB;
uint64_t m = XEMASK(0, mb);
Value* v = f.LoadGPR(i.MD.RT);
if (sh) {
v = f.RotateLeft(v, sh);
}
if (m != 0xFFFFFFFFFFFFFFFF) {
v = f.And(v, f.LoadConstantUint64(m));
}
f.StoreGPR(i.MD.RA, v);
if (i.MD.Rc) {
f.UpdateCR(0, v);
}
return 0;
}
int InstrEmit_rldicx(PPCHIRBuilder& f, const InstrData& i) {