static void ne2000_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
NE2000State *s = opaque;
- int offset, page;
+ int offset, page, index;
addr &= 0xf;
#ifdef DEBUG_NE2000
ne2000_update_irq(s);
}
if (val & E8390_TRANS) {
- qemu_send_packet(s->nd, s->mem + (s->tpsr << 8), s->tcnt);
+ index = (s->tpsr << 8);
+ /* XXX: next 2 lines are a hack to make netware 3.11 work */
+ if (index >= NE2000_PMEM_END)
+ index -= NE2000_PMEM_SIZE;
+ /* fail safe: check range on the transmitted length */
+ if (index + s->tcnt <= NE2000_PMEM_END) {
+ qemu_send_packet(s->nd, s->mem + index, s->tcnt);
+ }
/* signal end of transfert */
s->tsr = ENTSR_PTX;
s->isr |= ENISR_TX;
+ s->cmd &= ~E8390_TRANS;
ne2000_update_irq(s);
}
}