diff options
| -rw-r--r-- | hw/i386/pc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 07de2384ad..e6369d5be6 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -471,11 +471,12 @@ static void port92_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { Port92State *s = opaque; + int oldval = s->outport; DPRINTF("port92: write 0x%02x\n", val); s->outport = val; qemu_set_irq(*s->a20_out, (val >> 1) & 1); - if (val & 1) { + if ((val & 1) && !(oldval & 1)) { qemu_system_reset_request(); } } |