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fixed very unlikely irq bug

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@749 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-04-25 18:03:53 +00:00
parent 6f1f31c069
commit ba91cd80d5
1 changed files with 16 additions and 2 deletions
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18
hw/i8259.c
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@ -46,8 +46,8 @@ typedef struct PicState {
} PicState;
/* 0 is master pic, 1 is slave pic */
PicState pics[2];
int pic_irq_requested;
static PicState pics[2];
static int pic_irq_requested;
/* set irq level. If an edge is detected, then the IRR is set to 1 */
static inline void pic_set_irq1(PicState *s, int irq, int level)
@ -198,6 +198,7 @@ int cpu_get_pic_interrupt(CPUState *env)
intno = pics[0].irq_base + irq;
}
pic_intack(&pics[0], irq);
pic_update_irq();
return intno;
}
@ -408,6 +409,19 @@ static void pic_init1(int io_addr, PicState *s)
register_savevm("i8259", io_addr, 1, pic_save, pic_load, s);
}
void pic_info(void)
{
int i;
PicState *s;
for(i=0;i<2;i++) {
s = &pics[i];
term_printf("pic%d: irr=%02x imr=%02x isr=%02x hprio=%d irq_base=%02x rr_sel=%d\n",
i, s->irr, s->imr, s->isr, s->priority_add, s->irq_base, s->read_reg_select);
}
}
void pic_init(void)
{
pic_init1(0x20, &pics[0]);