The commit in r1049 (serial interrupt fix (Hampa Hug)) prevents booting Digital Research DOSPlus. Following patch partially reverts that commit and makes DOSPlus booting in QEMU again.
Sign-off-by: Roy Tam <roy...@gmail.com> -- diff --git a/hw/serial.c b/hw/serial.c index f3ec36a..2ae550e 100644 --- a/hw/serial.c +++ b/hw/serial.c @@ -401,10 +401,6 @@ static void serial_ioport_write(void *opaque, s->poll_msl = 0; } } - if (s->lsr & UART_LSR_THRE) { - s->thr_ipending = 1; - serial_update_irq(s); - } } break; case 2: