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-rw-r--r--hw/arm/omap1.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/hw/arm/omap1.c b/hw/arm/omap1.c
index 91ffb589e5..de2b289257 100644
--- a/hw/arm/omap1.c
+++ b/hw/arm/omap1.c
@@ -2004,8 +2004,7 @@ static void omap_mpuio_write(void *opaque, hwaddr addr,
case 0x04: /* OUTPUT_REG */
diff = (s->outputs ^ value) & ~s->dir;
s->outputs = value;
- while ((ln = ffs(diff))) {
- ln --;
+ while ((ln = ctz32(diff)) != 32) {
if (s->handler[ln])
qemu_set_irq(s->handler[ln], (value >> ln) & 1);
diff &= ~(1 << ln);
@@ -2017,8 +2016,7 @@ static void omap_mpuio_write(void *opaque, hwaddr addr,
s->dir = value;
value = s->outputs & ~s->dir;
- while ((ln = ffs(diff))) {
- ln --;
+ while ((ln = ctz32(diff)) != 32) {
if (s->handler[ln])
qemu_set_irq(s->handler[ln], (value >> ln) & 1);
diff &= ~(1 << ln);