From 0ecf89aae327d545af6e10defd2315c97874cbd5 Mon Sep 17 00:00:00 2001 From: bellard Date: Wed, 29 Sep 2004 21:55:52 +0000 Subject: level triggered IRQ fix (Steve Wormley) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1078 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/i8259.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'hw/i8259.c') diff --git a/hw/i8259.c b/hw/i8259.c index c21f0d3060..221506b28f 100644 --- a/hw/i8259.c +++ b/hw/i8259.c @@ -188,7 +188,9 @@ static inline void pic_intack(PicState *s, int irq) } else { s->isr |= (1 << irq); } - s->irr &= ~(1 << irq); + /* We don't clear a level sensitive interrupt here */ + if (!(s->elcr & (1 << irq))) + s->irr &= ~(1 << irq); } int cpu_get_pic_interrupt(CPUState *env) -- cgit v1.2.3