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Fix count calculation when counter limit set to 0 (Robert Reif) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3840 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2007-12-19 17:58:24 +00:00
parent 6fa13c170c
commit bd7e2875fe
1 changed files with 7 additions and 2 deletions
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9
hw/slavio_timer.c
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@ -97,9 +97,14 @@ static int slavio_timer_is_user(SLAVIO_TIMERState *s)
// Convert from ptimer countdown units
static void slavio_timer_get_out(SLAVIO_TIMERState *s)
{
uint64_t count;
uint64_t count, limit;
count = s->limit - PERIODS_TO_LIMIT(ptimer_get_count(s->timer));
if (s->limit == 0) /* free-run processor or system counter */
limit = TIMER_MAX_COUNT32;
else
limit = s->limit;
count = limit - PERIODS_TO_LIMIT(ptimer_get_count(s->timer));
DPRINTF("get_out: limit %" PRIx64 " count %x%08x\n", s->limit,
s->counthigh, s->count);
s->count = count & TIMER_COUNT_MASK32;