static void pcnet_stop(PCNetState *s)
{
#ifdef PCNET_DEBUG
    printf("pcnet_stop\n");
#endif
    s->csr[0] &= ~0xffeb;
    s->csr[0] |= 0x0014;
    s->csr[4] &= ~0x02c2;
    s->csr[5] &= ~0x0011;
    pcnet_poll_timer(s);
}
Unknown