diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/emu/x64runf0.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/emu/x64runf0.c b/src/emu/x64runf0.c index 10747155..29ca7a71 100644 --- a/src/emu/x64runf0.c +++ b/src/emu/x64runf0.c @@ -975,7 +975,18 @@ uintptr_t RunF0(x64emu_t *emu, rex_t rex, uintptr_t addr) GD->q[0] = native_lock_xchg_dd(ED, GD->q[0]); } } else { - GD->dword[0] = native_lock_xchg_d(ED, GD->dword[0]); + if((uintptr_t)ED&3) { + // unaligned + do { + tmp32u = ED->dword[0] & 0xffffff00; + tmp32u |= native_lock_read_b(ED); + + } while(native_lock_write_b(ED, GD->byte[0])); + ED->dword[0] = GD->dword[0]; + GD->dword[0] = tmp32u; + } else { + GD->dword[0] = native_lock_xchg_d(ED, GD->dword[0]); + } } } #else |