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A small update for the YM2610 core, which resets the PCM and Delta-T memory regions when the chip is reset. This is needed for MESS, where being able to change the size and existence of the sample regions on the Neo Geo AES is necessary for the sound to work right, especially for games that don't have a specific Delta-T region. [Barry Rodewald]

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This commit is contained in:
Scott Stone 2010-05-27 14:45:04 +00:00
parent cfc1c8b266
commit 8104397e87
1 changed files with 17 additions and 0 deletions
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17
src/emu/sound/fm.c
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@ -4210,6 +4210,23 @@ void ym2610_reset_chip(void *chip)
FM_OPN *OPN = &F2610->OPN;
YM_DELTAT *DELTAT = &F2610->deltaT;
astring name;
running_device* dev = F2610->OPN.ST.device;
/* setup PCM buffers again */
name.printf("%s",dev->tag());
F2610->pcmbuf = (const UINT8 *)memory_region(dev->machine,name);
F2610->pcm_size = memory_region_length(dev->machine,name);
name.printf("%s.deltat",dev->tag());
F2610->deltaT.memory = (UINT8 *)memory_region(dev->machine,name);
if(F2610->deltaT.memory == NULL)
{
F2610->deltaT.memory = (UINT8*)F2610->pcmbuf;
F2610->deltaT.memory_size = F2610->pcm_size;
}
else
F2610->deltaT.memory_size = memory_region_length(dev->machine,name);
/* Reset Prescaler */
OPNSetPres( OPN, 6*24, 6*24, 4*2); /* OPN 1/6 , SSG 1/4 */
/* reset SSG section */