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Fixed ecx restore in EmitShlXX/EmitShrXX/EmitShaXX.

This commit is contained in:
gibbed 2015-05-05 13:58:03 -05:00
parent 743e01209b
commit 6694461698
1 changed files with 3 additions and 15 deletions
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18
src/xenia/cpu/backend/x64/x64_sequences.cc
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@ -4472,13 +4472,9 @@ void EmitShlXX(X64Emitter& e, const ARGS& i) {
e.shlx(dest_src.cvt32(), dest_src.cvt32(), src.cvt32()); e.shlx(dest_src.cvt32(), dest_src.cvt32(), src.cvt32());
} }
} else { } else {
// back up ecx...
e.mov(e.al, e.cl);
e.mov(e.cl, src); e.mov(e.cl, src);
e.shl(dest_src, e.cl); e.shl(dest_src, e.cl);
e.ReloadECX();
e.mov(e.cl, e.al);
} }
}, [](X64Emitter& e, const REG& dest_src, int8_t constant) { }, [](X64Emitter& e, const REG& dest_src, int8_t constant) {
e.shl(dest_src, constant); e.shl(dest_src, constant);
@ -4533,13 +4529,9 @@ void EmitShrXX(X64Emitter& e, const ARGS& i) {
e.shrx(dest_src.cvt32(), dest_src.cvt32(), src.cvt32()); e.shrx(dest_src.cvt32(), dest_src.cvt32(), src.cvt32());
} }
} else { } else {
// back up ecx...
e.mov(e.al, e.cl);
e.mov(e.cl, src); e.mov(e.cl, src);
e.shr(dest_src, e.cl); e.shr(dest_src, e.cl);
e.ReloadECX();
e.mov(e.cl, e.al);
} }
}, [](X64Emitter& e, const REG& dest_src, int8_t constant) { }, [](X64Emitter& e, const REG& dest_src, int8_t constant) {
e.shr(dest_src, constant); e.shr(dest_src, constant);
@ -4619,13 +4611,9 @@ void EmitSarXX(X64Emitter& e, const ARGS& i) {
e.sarx(dest_src.cvt32(), dest_src.cvt32(), src.cvt32()); e.sarx(dest_src.cvt32(), dest_src.cvt32(), src.cvt32());
} }
} else { } else {
// back up ecx...
e.mov(e.al, e.cl);
e.mov(e.cl, src); e.mov(e.cl, src);
e.sar(dest_src, e.cl); e.sar(dest_src, e.cl);
e.ReloadECX();
e.mov(e.cl, e.al);
} }
}, [](X64Emitter& e, const REG& dest_src, int8_t constant) { }, [](X64Emitter& e, const REG& dest_src, int8_t constant) {
e.sar(dest_src, constant); e.sar(dest_src, constant);