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/***************************************************************************
sid6581.c
MAME/MESS interface for SID6581 and SID8580 chips
***************************************************************************/
#include "emu.h"
#include "sid6581.h"
#include "sid.h"
static SID6581 *get_sid(running_device *device)
{
assert(device != NULL);
assert((device->type() == SOUND_SID6581) || (device->type() == SOUND_SID8580));
return (SID6581 *) downcast<legacy_device_base *>(device)->token();
}
static STREAM_UPDATE( sid_update )
{
SID6581 *sid = (SID6581 *) param;
sidEmuFillBuffer(sid, outputs[0], samples);
}
static void sid_start(running_device *device, SIDTYPE sidtype)
{
SID6581 *sid = get_sid(device);
const sid6581_interface *iface = (const sid6581_interface*) device->baseconfig().static_config();
sid->device = device;
sid->mixer_channel = stream_create (device, 0, 1, device->machine->sample_rate, (void *) sid, sid_update);
sid->PCMfreq = device->machine->sample_rate;
sid->clock = device->clock();
sid->ad_read = iface ? iface->ad_read : NULL;
sid->type = sidtype;
sid6581_init(sid);
sidInitWaveformTables(sidtype);
}
static DEVICE_RESET( sid )
{
SID6581 *sid = get_sid(device);
sidEmuReset(sid);
}
static DEVICE_START( sid6581 )
{
sid_start(device, MOS6581);
}
static DEVICE_START( sid8580 )
{
sid_start(device, MOS8580);
}
READ8_DEVICE_HANDLER ( sid6581_r )
{
return sid6581_port_r(device->machine, get_sid(device), offset);
}
WRITE8_DEVICE_HANDLER ( sid6581_w )
{
sid6581_port_w(get_sid(device), offset, data);
}
/**************************************************************************
* Generic get_info
**************************************************************************/
DEVICE_GET_INFO( sid6581 )
{
switch (state)
{
/* --- the following bits of info are returned as 64-bit signed integers --- */
case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(SID6581); break;
/* --- the following bits of info are returned as pointers to data or functions --- */
case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( sid6581 ); break;
case DEVINFO_FCT_STOP: info->stop = NULL; break;
case DEVINFO_FCT_RESET: info->reset = DEVICE_RESET_NAME( sid ); break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "SID6581"); break;
case DEVINFO_STR_FAMILY: strcpy(info->s, "SID"); break;
case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright The MESS Team"); break;
}
}
DEVICE_GET_INFO( sid8580 )
{
switch (state)
{
/* --- the following bits of info are returned as pointers to data or functions --- */
case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( sid8580 ); break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case DEVINFO_STR_NAME: strcpy(info->s, "SID8580"); break;
default: DEVICE_GET_INFO_CALL(sid6581); break;
}
}
DEFINE_LEGACY_SOUND_DEVICE(SID6581, sid6581);
DEFINE_LEGACY_SOUND_DEVICE(SID8580, sid8580);
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