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03994: All sets in dcheese.c: Reload of state cause audio corruption [Phil Bennett]

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This commit is contained in:
Phil Bennett 2010-08-16 17:36:31 +00:00
parent 09e9c65fbb
commit cb6fdddfda
1 changed files with 18 additions and 4 deletions
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22
src/emu/sound/bsmt2000.c
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@ -66,7 +66,8 @@ struct _bsmt2000_chip
bsmt2000_voice voice[MAX_VOICES]; /* the voices */ bsmt2000_voice voice[MAX_VOICES]; /* the voices */
UINT16 * regmap[128]; /* mapping of registers to voice params */ UINT16 * regmap[128]; /* mapping of registers to voice params */
UINT8 mode; /* current mode */
UINT32 clock; /* original clock on the chip */ UINT32 clock; /* original clock on the chip */
UINT8 stereo; /* stereo output? */ UINT8 stereo; /* stereo output? */
UINT8 voices; /* number of voices */ UINT8 voices; /* number of voices */
@ -108,6 +109,17 @@ INLINE bsmt2000_chip *get_safe_token(running_device *device)
CORE IMPLEMENTATION CORE IMPLEMENTATION
***************************************************************************/ ***************************************************************************/
/*-------------------------------------------------
bsmt2000_postload - save-state load callback
-------------------------------------------------*/
static STATE_POSTLOAD( bsmt2000_postload )
{
bsmt2000_chip *chip = (bsmt2000_chip*)param;
set_mode(chip);
}
/*------------------------------------------------- /*-------------------------------------------------
DEVICE_START( bsmt2000 ) - initialization callback DEVICE_START( bsmt2000 ) - initialization callback
-------------------------------------------------*/ -------------------------------------------------*/
@ -126,7 +138,9 @@ static DEVICE_START( bsmt2000 )
chip->total_banks = device->region()->bytes() / 0x10000; chip->total_banks = device->region()->bytes() / 0x10000;
/* register chip-wide data for save states */ /* register chip-wide data for save states */
state_save_register_postload(device->machine, bsmt2000_postload, chip);
state_save_register_device_item(device, 0, chip->last_register); state_save_register_device_item(device, 0, chip->last_register);
state_save_register_device_item(device, 0, chip->mode);
state_save_register_device_item(device, 0, chip->stereo); state_save_register_device_item(device, 0, chip->stereo);
state_save_register_device_item(device, 0, chip->voices); state_save_register_device_item(device, 0, chip->voices);
state_save_register_device_item(device, 0, chip->adpcm); state_save_register_device_item(device, 0, chip->adpcm);
@ -168,7 +182,8 @@ static DEVICE_RESET( bsmt2000 )
voice->rightvol = 0x7fff; voice->rightvol = 0x7fff;
} }
/* recompute the mode */ /* recompute the mode - this comes from the address of the last register accessed */
chip->mode = chip->last_register;
set_mode(chip); set_mode(chip);
} }
@ -360,8 +375,7 @@ static void set_mode(bsmt2000_chip *chip)
/* force an update */ /* force an update */
stream_update(chip->stream); stream_update(chip->stream);
/* the mode comes from the address of the last register accessed */ switch (chip->mode)
switch (chip->last_register)
{ {
/* mode 0: 24kHz, 12 channel PCM, 1 channel ADPCM, mono */ /* mode 0: 24kHz, 12 channel PCM, 1 channel ADPCM, mono */
default: default: