diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/dynarec/arm64/dynarec_arm64_emit_logic.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/dynarec/arm64/dynarec_arm64_emit_logic.c b/src/dynarec/arm64/dynarec_arm64_emit_logic.c index fc7e6ef0..363b53d7 100644 --- a/src/dynarec/arm64/dynarec_arm64_emit_logic.c +++ b/src/dynarec/arm64/dynarec_arm64_emit_logic.c @@ -177,7 +177,7 @@ void emit_xor32(dynarec_arm_t* dyn, int ninst, rex_t rex, int s1, int s2, int s3 void emit_xor32c(dynarec_arm_t* dyn, int ninst, rex_t rex, int s1, int64_t c, int s3, int s4) { int mask = convert_bitmask_xw(c); - if(!mask) { + if(!mask && !((!rex.w && c==0xffffffffLL) || (rex.w && c==0xffffffffffffffffLL))) { MOV64xw(s3, c); emit_xor32(dyn, ninst, rex, s1, s3, s3, s4); return; @@ -187,7 +187,11 @@ void emit_xor32c(dynarec_arm_t* dyn, int ninst, rex_t rex, int s1, int64_t c, in } else IFX(X_ALL) { SET_DFNONE(s4); } - EORxw_mask(s1, s1, (mask>>12)&1, mask&0x3F, (mask>>6)&0x3F); + if(!mask) { + MVNxw_REG(s1, s1); + } else { + EORxw_mask(s1, s1, (mask>>12)&1, mask&0x3F, (mask>>6)&0x3F); + } IFX(X_PEND) { STRxw_U12(s1, xEmu, offsetof(x64emu_t, res)); } |