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refresh clock dummy emulation (netbsd boot fix)
author
bellard
<bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Sun, 27 Jul 2003 22:19:00 +0000
(22:19 +0000)
committer
bellard
<bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Sun, 27 Jul 2003 22:19:00 +0000
(22:19 +0000)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@341
c046a42c
-6fe2-441c-8c8c-
71466251a162
vl.c
patch
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diff --git
a/vl.c
b/vl.c
index
fb27e3b
..
a7e117f
100644
(file)
--- a/
vl.c
+++ b/
vl.c
@@
-858,6
+858,7
@@
typedef struct PITChannelState {
PITChannelState pit_channels[3];
int speaker_data_on;
+int dummy_refresh_clock;
int pit_min_timer_count = 0;
int64_t ticks_per_sec;
@@
-1115,7
+1116,9
@@
uint32_t speaker_ioport_read(CPUX86State *env, uint32_t addr)
{
int out;
out = pit_get_out(&pit_channels[2]);
- return (speaker_data_on << 1) | pit_channels[2].gate | (out << 5);
+ dummy_refresh_clock ^= 1;
+ return (speaker_data_on << 1) | pit_channels[2].gate | (out << 5) |
+ (dummy_refresh_clock << 4);
}
void pit_init(void)