Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Added preliminary MPU-401 emulation (UART mode only) for SB16. Currently outputs to default Windows MIDI device. This allows Windows 3.x SB16 drivers to work.

Browse source
This commit is contained in:
TomW 2013-06-04 20:52:17 +01:00
commit b9062a1d0c
7 changed files with 152 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

11
src/sound_sb.c
View file

@ -1,9 +1,10 @@
#include <stdlib.h>
#include "ibm.h"
#include "device.h"
#include "sound_mpu401_uart.h"
#include "sound_opl.h"
#include "sound_sb.h"
#include "sound_sb_dsp.h"
#include "sound_opl.h"
#include "filters.h"
@ -22,9 +23,10 @@ typedef struct sb_mixer_t
typedef struct sb_t
{
opl_t opl;
sb_dsp_t dsp;
sb_mixer_t mixer;
opl_t opl;
sb_dsp_t dsp;
sb_mixer_t mixer;
mpu401_uart_t mpu;
int16_t opl_buffer[SOUNDBUFLEN * 2];
int16_t dsp_buffer[SOUNDBUFLEN * 2];
@ -336,6 +338,7 @@ void *sb_16_init()
io_sethandler(0x0388, 0x0002, opl3_read, NULL, NULL, opl3_write, NULL, NULL, &sb->opl);
io_sethandler(0x0224, 0x0002, sb_16_mixer_read, NULL, NULL, sb_16_mixer_write, NULL, NULL, sb);
sound_add_handler(sb_opl3_poll, sb_get_buffer, sb);
mpu401_uart_init(&sb->mpu, 0x330);
sb->mixer.regs[0x30] = 31 << 3;
sb->mixer.regs[0x31] = 31 << 3;