SN76489_Context* SN76489_Init( int PSGClockValue, int SamplingRate)
{
int i;
SN76489_Context* chip = (SN76489_Context*)malloc(sizeof(SN76489_Context));
if(chip)
{
chip->dClock=(float)(PSGClockValue & 0x7FFFFFF)/16/SamplingRate;
SN76489_SetMute(chip, MUTE_ALLON);
SN76489_Config(chip, /*MUTE_ALLON,*/ FB_SEGAVDP, SRW_SEGAVDP, 1);
for( i = 0; i <= 3; i++ )
centre_panning(chip->panning[i]);
//SN76489_Reset(chip);
if ((PSGClockValue & 0x80000000) && LastChipInit != NULL)
{
// Activate special NeoGeoPocket Mode
LastChipInit->NgpFlags = 0x80 | 0x00;
chip->NgpFlags = 0x80 | 0x01;
chip->NgpChip2 = LastChipInit;
LastChipInit->NgpChip2 = chip;
LastChipInit = NULL;
}
else
{
chip->NgpFlags = 0x00;
chip->NgpChip2 = NULL;
LastChipInit = chip;
}
}
return chip;
}
void sn764xx_set_mute_mask(UINT8 ChipID, UINT32 MuteMask)
{
sn764xx_state *info = &SN764xxData[ChipID];
switch(EMU_CORE)
{
case EC_MAME:
sn76496_set_mutemask(info->chip, MuteMask);
break;
#ifdef ENABLE_ALL_CORES
case EC_MAXIM:
SN76489_SetMute(info->chip, ~MuteMask & 0x0F);
break;
#endif
}
return;
}
void sn764xx_set_mute_mask(void *_info, UINT32 MuteMask)
{
sn764xx_state *info = (sn764xx_state*)_info;
switch(info->EMU_CORE)
{
case EC_MAME:
sn76496_set_mutemask(info->chip, MuteMask);
break;
#ifdef ENABLE_ALL_CORES
case EC_MAXIM:
SN76489_SetMute(info->chip, ~MuteMask & 0x0F);
break;
#endif
}
return;
}
