commit 452efba63bc4a2f1f580c96b087cbfae58b81785
author Blue Swirl <blauwirbel@gmail.com> Sun Jan 24 14:28:21 2010 +0000
committer Blue Swirl <blauwirbel@gmail.com> Sun Jan 24 14:28:21 2010 +0000
tree 143ae7bac671aa8ae6d1e85efb2dde858d7243a7
parent 07b064e9de65a26a4cb36dfb37c7506ef17407fd

Sparc32: fix free-run timer

According to Sun4M System Architecture Manual chapter 5.3.2, a limit
of 0 will not generate interrupts.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

hw/slavio_timer.c

diff --git a/hw/slavio_timer.c b/hw/slavio_timer.c
index cd2cf57..ef36fe4 100644
--- a/hw/slavio_timer.c
+++ b/hw/slavio_timer.c
@@ -128,7 +128,8 @@
     slavio_timer_get_out(t);
     DPRINTF("callback: count %x%08x\n", t->counthigh, t->count);
     t->reached = TIMER_REACHED;
-    if (!slavio_timer_is_user(tc)) {
+    /* there is no interrupt if user timer or free-run */
+    if (!slavio_timer_is_user(tc) && t->limit != 0) {
         qemu_irq_raise(t->irq);
     }
 }