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Added an option to make MPU-401 use the Sound Blaster 16 (or AWE32)'s IRQ and made its IRQ pending status reflected in the SB16 IRQ source register, fixes MPU-401 detection in Windows NT 3.5.

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OBattler
2018-09-04 13:26:07 +02:00
parent e60c4e9615
commit 9e4b534c54
2 changed files with 21 additions and 5 deletions
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4
src/sound/snd_mpu401.c
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@@ -8,7 +8,7 @@
*
* Roland MPU-401 emulation.
*
* Version: @(#)snd_mpu401.c 1.0.10 2018/04/29
* Version: @(#)snd_mpu401.c 1.0.11 2018/09/04
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* DOSBox Team,
@@ -55,6 +55,7 @@ static void MPU401_WriteCommand(mpu_t *mpu, uint8_t val);
static void MPU401_EOIHandlerDispatch(void *p);
#define ENABLE_MPU401_LOG 1
#ifdef ENABLE_MPU401_LOG
int mpu401_do_log = ENABLE_MPU401_LOG;
#endif
@@ -682,6 +683,7 @@ MPU401_EOIHandlerDispatch(void *priv)
{
mpu_t *mpu = (mpu_t *)priv;
mpu401_log("EOI handler dispatch\n");
if (mpu->state.send_now) {
mpu->state.eoi_scheduled=1;
mpu401_eoi_callback = 60LL * TIMER_USEC; /* Possible a bit longer */