diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/emu/x64runf0.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/emu/x64runf0.c b/src/emu/x64runf0.c index 58c03f16..70d945ec 100644 --- a/src/emu/x64runf0.c +++ b/src/emu/x64runf0.c @@ -941,7 +941,11 @@ uintptr_t RunF0(x64emu_t *emu, rex_t rex, uintptr_t addr) } else switch((nextop>>3)&7) { - case 0: do { tmp32u2 = native_lock_read_d(ED); tmp32u2 = add32(emu, tmp32u2, tmp64u);} while(native_lock_write_d(ED, tmp32u2)); break; + case 0: if(((uintptr_t)ED)&3) { + // unaligned case + do { tmp32u2 = native_lock_read_b(ED); tmp32u2=ED->dword[0]; tmp32u2 = add32(emu, tmp32u2, tmp64u);} while(native_lock_write_b(ED, tmp32u2)); ED->dword[0]=tmp32u2; break; + } else + do { tmp32u2 = native_lock_read_d(ED); tmp32u2 = add32(emu, tmp32u2, tmp64u);} while(native_lock_write_d(ED, tmp32u2)); break; case 1: do { tmp32u2 = native_lock_read_d(ED); tmp32u2 = or32(emu, tmp32u2, tmp64u);} while(native_lock_write_d(ED, tmp32u2)); break; case 2: do { tmp32u2 = native_lock_read_d(ED); tmp32u2 = adc32(emu, tmp32u2, tmp64u);} while(native_lock_write_d(ED, tmp32u2)); break; case 3: do { tmp32u2 = native_lock_read_d(ED); tmp32u2 = sbb32(emu, tmp32u2, tmp64u);} while(native_lock_write_d(ED, tmp32u2)); break; |