Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-07-03 00:56:03 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

(MESS) Modernized uPD1771c sound device. [Fabio Priuli]

Browse Source 
src/mess/audio/ is now legacy free, if I'm not making mistakes...
This commit is contained in:
Fabio Priuli 2013-06-03 06:46:22 +00:00
parent cb34ca297b
commit cecb42fcb1
4 changed files with 267 additions and 301 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

478
src/mess/audio/upd1771.c
View File

@ -162,13 +162,11 @@
**********************************************************************/ **********************************************************************/
#include "emu.h" #include "emu.h"
#include "upd1771.h" #include "audio/upd1771.h"
#define LOG 0 #define LOG 0
#define MAX_PACKET_SIZE 0x8000
/* /*
Each of the 8 waveforms have been sampled at 192kHz using period 0xFF, Each of the 8 waveforms have been sampled at 192kHz using period 0xFF,
filtered, and each of the 32 levels have been calculated with averages on around 10 samples filtered, and each of the 32 levels have been calculated with averages on around 10 samples
@ -189,12 +187,11 @@ const char WAVEFORMS[8][32]={
}; };
#define NOISE_SIZE 255 #define NOISE_SIZE 255
static unsigned char noise_tbl[]= static unsigned char noise_tbl[]=
{ {
0x1c,0x86,0x8a,0x8f,0x98,0xa1,0xad,0xbe,0xd9,0x8a,0x66,0x4d,0x40,0x33,0x2b,0x23, 0x1c,0x86,0x8a,0x8f,0x98,0xa1,0xad,0xbe,0xd9,0x8a,0x66,0x4d,0x40,0x33,0x2b,0x23,
0x1e,0x8a,0x90,0x97,0xa4,0xae,0xb8,0xd6,0xec,0xe9,0x69,0x4a,0x3e,0x34,0x2d,0x27, 0x1e,0x8a,0x90,0x97,0xa4,0xae,0xb8,0xd6,0xec,0xe9,0x69,0x4a,0x3e,0x34,0x2d,0x27,
0x24,0x24,0x89,0x8e,0x93,0x9c,0xa5,0xb0,0xc1,0xdd,0x40,0x36,0x30,0x29,0x27,0x24, 0x24,0x24,0x89,0x8e,0x93,0x9c,0xa5,0xb0,0xc1,0xdd,0x40,0x36,0x30,0x29,0x27,0x24,
@ -211,7 +208,7 @@ const char WAVEFORMS[8][32]={
0x90,0x9a,0xa4,0xb2,0xc2,0xda,0xff,0x67,0x4c,0x3e,0x33,0x2d,0x25,0x24,0x1f,0x89, 0x90,0x9a,0xa4,0xb2,0xc2,0xda,0xff,0x67,0x4c,0x3e,0x33,0x2d,0x25,0x24,0x1f,0x89,
0x8e,0x93,0x9c,0xa5,0xb1,0xc2,0xde,0x85,0x8e,0x98,0xa2,0xb0,0xc0,0xd9,0xfe,0x64, 0x8e,0x93,0x9c,0xa5,0xb1,0xc2,0xde,0x85,0x8e,0x98,0xa2,0xb0,0xc0,0xd9,0xfe,0x64,
0x4b,0x3b,0x31,0x2a,0x23,0x22,0x1e,0x88,0x8c,0x91,0x9b,0xa3,0xaf,0xc1,0xdc,0xdc 0x4b,0x3b,0x31,0x2a,0x23,0x22,0x1e,0x88,0x8c,0x91,0x9b,0xa3,0xaf,0xc1,0xdc,0xdc
}; };
@ -220,51 +217,86 @@ const char WAVEFORMS[8][32]={
#define STATE_TONE 2 #define STATE_TONE 2
#define STATE_ADPCM 3 #define STATE_ADPCM 3
struct upd1771_state
const device_type UPD1771C = &device_creator<upd1771c_device>;
upd1771c_device::upd1771c_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, UPD1771C, "NEC uPD1771C 017", tag, owner, clock),
device_sound_interface(mconfig, *this)
{ {
sound_stream *channel;
devcb_resolved_write_line ack_out_func;
emu_timer *timer;
UINT8 packet[MAX_PACKET_SIZE];
UINT32 index;
UINT8 expected_bytes;
UINT8 state;//0:silence, 1 noise, 2 tone
UINT8 pc3;
//tone
UINT8 t_timbre; //[0; 7]
UINT8 t_offset; //[0; 32]
UINT16 t_period; //[0;255]
UINT8 t_volume; //[0; 31]
UINT8 t_tpos;//timbre pos
UINT16 t_ppos;//period pos
//noise wavetable LFSR
UINT8 nw_timbre; //[0; 7]
UINT8 nw_volume; //[0; 31]
UINT32 nw_period;
UINT32 nw_tpos; //timbre pos
UINT32 nw_ppos; //period pos
//noise pulse components
UINT8 n_value[3]; //[0;1]
UINT16 n_volume[3]; //[0; 31]
UINT32 n_period[3];
UINT32 n_ppos[3]; //period pos
};
INLINE upd1771_state *get_safe_token(device_t *device)
{
assert(device != NULL);
assert(device->type() == UPD1771C);
return (upd1771_state *)downcast<upd1771c_device *>(device)->token();
} }
READ8_DEVICE_HANDLER( upd1771_r ) //-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void upd1771c_device::device_config_complete()
{
// inherit a copy of the static data
const upd1771_interface *intf = reinterpret_cast<const upd1771_interface *>(static_config());
if (intf != NULL)
*static_cast<upd1771_interface *>(this) = *intf;
// or initialize to defaults if none provided
else
{
memset(&m_ack_callback, 0, sizeof(m_ack_callback));
}
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void upd1771c_device::device_start()
{
/* resolve callbacks */
m_ack_out_func.resolve(m_ack_callback, *this);
m_timer = machine().scheduler().timer_alloc(timer_expired_delegate(FUNC(upd1771c_device::ack_callback),this));
m_channel = machine().sound().stream_alloc(*this, 0, 1, clock() / 4, this);
save_item(NAME(m_packet));
save_item(NAME(m_index));
save_item(NAME(m_expected_bytes));
save_item(NAME(m_state));
save_item(NAME(m_pc3));
save_item(NAME(m_t_timbre));
save_item(NAME(m_t_offset));
save_item(NAME(m_t_period));
save_item(NAME(m_t_volume));
save_item(NAME(m_t_tpos));
save_item(NAME(m_t_ppos));
save_item(NAME(m_nw_timbre));
save_item(NAME(m_nw_volume));
save_item(NAME(m_nw_period));
save_item(NAME(m_nw_tpos));
save_item(NAME(m_nw_ppos));
save_item(NAME(m_n_value));
save_item(NAME(m_n_volume));
save_item(NAME(m_n_period));
save_item(NAME(m_n_ppos));
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void upd1771c_device::device_reset()
{
m_index = 0;
m_expected_bytes = 0;
m_pc3 = 0;
}
READ8_MEMBER( upd1771c_device::read )
{ {
return 0x80; // TODO return 0x80; // TODO
} }
@ -331,288 +363,194 @@ Byte8: 0b???VVVVV Low Freq1 volume
Byte9: 0b???VVVVV Low Freq2 volume Byte9: 0b???VVVVV Low Freq2 volume
*/ */
WRITE8_DEVICE_HANDLER( upd1771_w ) WRITE8_MEMBER( upd1771c_device::write )
{ {
upd1771_state *state = get_safe_token( device );
//if (LOG) //if (LOG)
// logerror( "upd1771_w: received byte 0x%02x\n", data ); // logerror( "upd1771_w: received byte 0x%02x\n", data );
state->ack_out_func(0); m_ack_out_func(0);
if (state->index < MAX_PACKET_SIZE) if (m_index < MAX_PACKET_SIZE)
state->packet[state->index++]=data; m_packet[m_index++] = data;
else{ else
logerror( "upd1771_w: received byte 0x%02x overload!\n", data ); {
logerror("upd1771_w: received byte 0x%02x overload!\n", data);
return; return;
} }
switch(state->packet[0]){ switch (m_packet[0])
case 0:
{ {
state->state = STATE_SILENCE; case 0:
state->index = 0; m_state = STATE_SILENCE;
m_index = 0;
//logerror( "upd1771_w: ----------------silence state reset\n"); //logerror( "upd1771_w: ----------------silence state reset\n");
}break; break;
case 1: case 1:
if (m_index == 10)
{ {
if (state->index == 10){ m_state = STATE_NOISE;
state->state = STATE_NOISE; m_index = 0;
state->index = 0;
state->nw_timbre = (state->packet[1] & 0xE0) >> 5; m_nw_timbre = (m_packet[1] & 0xe0) >> 5;
state->nw_period = ((UINT32)state->packet[2]+1)<<7; m_nw_period = ((UINT32)m_packet[2] + 1) << 7;
state->nw_volume = state->packet[3] & 0x1f; m_nw_volume = m_packet[3] & 0x1f;
//very long clocked periods.. used for engine drones //very long clocked periods.. used for engine drones
state->n_period[0] = (((UINT32)state->packet[4])+1)<<7; m_n_period[0] = (((UINT32)m_packet[4]) + 1) << 7;
state->n_period[1] = (((UINT32)state->packet[5])+1)<<7; m_n_period[1] = (((UINT32)m_packet[5]) + 1) << 7;
state->n_period[2] = (((UINT32)state->packet[6])+1)<<7; m_n_period[2] = (((UINT32)m_packet[6]) + 1) << 7;
state->n_volume[0] = state->packet[7]& 0x1f; m_n_volume[0] = m_packet[7] & 0x1f;
state->n_volume[1] = state->packet[8]& 0x1f; m_n_volume[1] = m_packet[8] & 0x1f;
state->n_volume[2] = state->packet[9]& 0x1f; m_n_volume[2] = m_packet[9] & 0x1f;
//logerror( "upd1771_w: ----------------noise state reset\n"); //logerror( "upd1771_w: ----------------noise state reset\n");
} }
else else
state->timer->adjust( attotime::from_ticks( 512, device->clock() ) ); m_timer->adjust(attotime::from_ticks(512, clock()));
}break; break;
case 2: case 2:
if (m_index == 4)
{ {
if (state->index == 4){
//logerror( "upd1771_w: ----------------tone state reset\n"); //logerror( "upd1771_w: ----------------tone state reset\n");
state->t_timbre = (state->packet[1] & 0xE0) >> 5; m_t_timbre = (m_packet[1] & 0xe0) >> 5;
state->t_offset = (state->packet[1] & 0x1F); m_t_offset = (m_packet[1] & 0x1f);
state->t_period = state->packet[2]; m_t_period = m_packet[2];
//smaller periods dont all equal to 0x20 //smaller periods dont all equal to 0x20
if (state->t_period < 0x20) if (m_t_period < 0x20)
state->t_period = 0x20; m_t_period = 0x20;
state->t_volume = state->packet[3] & 0x1f; m_t_volume = m_packet[3] & 0x1f;
state->state = STATE_TONE; m_state = STATE_TONE;
state->index = 0; m_index = 0;
} }
else else
state->timer->adjust( attotime::from_ticks( 512, device->clock() ) ); m_timer->adjust(attotime::from_ticks(512, clock()));
break;
}break; case 0x1f:
case 0x1F:
{
//6Khz(ish) DIGI playback //6Khz(ish) DIGI playback
//end capture //end capture
if (state->index >= 2 && state->packet[state->index-2] == 0xFE && if (m_index >= 2 && m_packet[m_index - 2] == 0xfe && m_packet[m_index - 1] == 0x00)
state->packet[state->index-1] == 0x00){ {
//TODO play capture! //TODO play capture!
state->index = 0; m_index = 0;
state->packet[0]=0; m_packet[0] = 0;
state->state = STATE_ADPCM; m_state = STATE_ADPCM;
} }
else else
state->timer->adjust( attotime::from_ticks( 512, device->clock() ) ); m_timer->adjust(attotime::from_ticks(512, clock()));
break;
}break;
//garbage: wipe stack //garbage: wipe stack
default: default:
state->state = STATE_SILENCE; m_state = STATE_SILENCE;
state->index = 0; m_index = 0;
break; break;
} }
} }
WRITE_LINE_DEVICE_HANDLER( upd1771_pcm_w ) WRITE_LINE_MEMBER( upd1771c_device::pcm_write )
{ {
upd1771_state *upd1771 = get_safe_token( device );
//RESET upon HIGH //RESET upon HIGH
if (state != upd1771->pc3){ if (state != m_pc3)
logerror( "upd1771_pc3 change!: state = %d\n", state );
upd1771->index = 0;
upd1771->packet[0]=0;
}
upd1771->pc3 = state;
}
static STREAM_UPDATE( upd1771c_update )
{
upd1771_state *state = get_safe_token( device );
stream_sample_t *buffer = outputs[0];
switch(state->state){
case STATE_TONE:
{ {
//logerror( "upd1771_STATE_TONE samps:%d %d %d %d %d %d\n",(int)samples, logerror("upd1771_pc3 change!: state = %d\n", state);
// (int)state->t_timbre,(int)state->t_offset,(int)state->t_volume,(int)state->t_period,(int)state->t_tpos); m_index = 0;
m_packet[0] = 0;
while ( --samples >= 0 ){
*buffer++ = (WAVEFORMS[state->t_timbre][state->t_tpos])*state->t_volume * 2;
state->t_ppos++;
if (state->t_ppos >= state->t_period){
state->t_tpos++;
if (state->t_tpos == 32)
state->t_tpos = state->t_offset;
state->t_ppos = 0;
}
}
}break;
case STATE_NOISE:
{
while (--samples >= 0 ){
*buffer = 0;
//"wavetable-LFSR" component
int wlfsr_val = ((int)noise_tbl[state->nw_tpos])-127;//data too wide
state->nw_ppos++;
if (state->nw_ppos >= state->nw_period){
state->nw_tpos++;
if (state->nw_tpos == NOISE_SIZE)
state->nw_tpos = 0;
state->nw_ppos = 0;
}
//mix in each of the noise's 3 pulse components
char res[3];
for (size_t i=0;i<3;++i){
res[i] = state->n_value[i]* 127;
state->n_ppos[i]++;
if (state->n_ppos[i] >= state->n_period[i]){
state->n_ppos[i] = 0;
state->n_value[i] = !state->n_value[i];
}
}
//not quite, but close.
*buffer+= (
(wlfsr_val*state->nw_volume) |
(res[0]*state->n_volume[0]) |
(res[1]*state->n_volume[1]) |
(res[2]*state->n_volume[2])
) ;
buffer++;
}
}break;
default:
{
//fill buffer with silence
while (--samples >= 0 ){
*buffer++ = 0;
}
}
break;
} }
m_pc3 = state;
} }
static TIMER_CALLBACK( upd1771c_callback ) TIMER_CALLBACK_MEMBER( upd1771c_device::ack_callback )
{ {
device_t *device = (device_t *)ptr; m_ack_out_func(1);
upd1771_state *state = get_safe_token( device );
state->ack_out_func(1);
} }
static DEVICE_START( upd1771c )
{
const upd1771_interface *intf = (const upd1771_interface *)device->static_config();
upd1771_state *state = get_safe_token( device );
int sample_rate = device->clock() / 4;
/* resolve callbacks */
state->ack_out_func.resolve(intf->ack_callback, *device);
state->timer = device->machine().scheduler().timer_alloc(FUNC(upd1771c_callback), (void *)device );
state->channel = device->machine().sound().stream_alloc( *device, 0, 1, sample_rate, state, upd1771c_update );
device->save_item( NAME(state->packet) );
device->save_item(NAME(state->index) );
device->save_item(NAME(state->expected_bytes) );
}
static DEVICE_RESET( upd1771c )
{
upd1771_state *state = get_safe_token( device );
state->index = 0;
state->expected_bytes = 0;
state->pc3 = 0;
}
static DEVICE_STOP( upd1771c )
{
}
const device_type UPD1771C = &device_creator<upd1771c_device>;
upd1771c_device::upd1771c_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, UPD1771C, "NEC uPD1771C 017", tag, owner, clock),
device_sound_interface(mconfig, *this)
{
m_token = global_alloc_clear(upd1771_state);
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void upd1771c_device::device_config_complete()
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void upd1771c_device::device_start()
{
DEVICE_START_NAME( upd1771c )(this);
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void upd1771c_device::device_reset()
{
DEVICE_RESET_NAME( upd1771c )(this);
}
//-------------------------------------------------
// device_stop - device-specific stop
//-------------------------------------------------
void upd1771c_device::device_stop()
{
DEVICE_STOP_NAME( upd1771c )(this);
}
//------------------------------------------------- //-------------------------------------------------
// sound_stream_update - handle a stream update // sound_stream_update - handle a stream update
//------------------------------------------------- //-------------------------------------------------
void upd1771c_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) void upd1771c_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
{ {
// should never get here stream_sample_t *buffer = outputs[0];
fatalerror("sound_stream_update called; not applicable to legacy sound devices\n");
switch (m_state)
{
case STATE_TONE:
//logerror( "upd1771_STATE_TONE samps:%d %d %d %d %d %d\n",(int)samples,
// (int)m_t_timbre,(int)m_t_offset,(int)m_t_volume,(int)m_t_period,(int)m_t_tpos);
while (--samples >= 0)
{
*buffer++ = (WAVEFORMS[m_t_timbre][m_t_tpos]) * m_t_volume * 2;
m_t_ppos++;
if (m_t_ppos >= m_t_period)
{
m_t_tpos++;
if (m_t_tpos == 32)
m_t_tpos = m_t_offset;
m_t_ppos = 0;
}
}
break;
case STATE_NOISE:
while (--samples >= 0)
{
*buffer = 0;
//"wavetable-LFSR" component
int wlfsr_val = ((int)noise_tbl[m_nw_tpos]) - 127;//data too wide
m_nw_ppos++;
if (m_nw_ppos >= m_nw_period)
{
m_nw_tpos++;
if (m_nw_tpos == NOISE_SIZE)
m_nw_tpos = 0;
m_nw_ppos = 0;
}
//mix in each of the noise's 3 pulse components
char res[3];
for (int i = 0; i < 3; ++i)
{
res[i] = m_n_value[i] * 127;
m_n_ppos[i]++;
if (m_n_ppos[i] >= m_n_period[i])
{
m_n_ppos[i] = 0;
m_n_value[i] = !m_n_value[i];
}
}
//not quite, but close.
*buffer+= (
(wlfsr_val * m_nw_volume) |
(res[0] * m_n_volume[0]) |
(res[1] * m_n_volume[1]) |
(res[2] * m_n_volume[2])
) ;
buffer++;
}
break;
default:
//fill buffer with silence
while (--samples >= 0)
{
*buffer++ = 0;
}
break;
}
} }

60
src/mess/audio/upd1771.h
View File

@ -9,13 +9,15 @@
#include "devcb.h" #include "devcb.h"
#define MAX_PACKET_SIZE 0x8000
/*************************************************************************** /***************************************************************************
TYPE DEFINITIONS TYPE DEFINITIONS
***************************************************************************/ ***************************************************************************/
struct upd1771_interface struct upd1771_interface
{ {
devcb_write_line ack_callback; devcb_write_line m_ack_callback;
}; };
@ -24,38 +26,64 @@ struct upd1771_interface
***************************************************************************/ ***************************************************************************/
class upd1771c_device : public device_t, class upd1771c_device : public device_t,
public device_sound_interface public device_sound_interface,
public upd1771_interface
{ {
public: public:
upd1771c_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); upd1771c_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~upd1771c_device() { global_free(m_token); } ~upd1771c_device() {}
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
WRITE_LINE_MEMBER( pcm_write );
// access to legacy token
void *token() const { assert(m_token != NULL); return m_token; }
protected: protected:
// device-level overrides // device-level overrides
virtual void device_config_complete(); virtual void device_config_complete();
virtual void device_start(); virtual void device_start();
virtual void device_stop();
virtual void device_reset(); virtual void device_reset();
// sound stream update overrides // sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
private: private:
// internal state // internal state
void *m_token; sound_stream *m_channel;
devcb_resolved_write_line m_ack_out_func;
emu_timer *m_timer;
TIMER_CALLBACK_MEMBER(ack_callback);
UINT8 m_packet[MAX_PACKET_SIZE];
UINT32 m_index;
UINT8 m_expected_bytes;
UINT8 m_state;//0:silence, 1 noise, 2 tone
UINT8 m_pc3;
//tone
UINT8 m_t_timbre; //[0; 7]
UINT8 m_t_offset; //[0; 32]
UINT16 m_t_period; //[0;255]
UINT8 m_t_volume; //[0; 31]
UINT8 m_t_tpos;//timbre pos
UINT16 m_t_ppos;//period pos
//noise wavetable LFSR
UINT8 m_nw_timbre; //[0; 7]
UINT8 m_nw_volume; //[0; 31]
UINT32 m_nw_period;
UINT32 m_nw_tpos; //timbre pos
UINT32 m_nw_ppos; //period pos
//noise pulse components
UINT8 m_n_value[3]; //[0;1]
UINT16 m_n_volume[3]; //[0; 31]
UINT32 m_n_period[3];
UINT32 m_n_ppos[3]; //period pos
}; };
extern const device_type UPD1771C; extern const device_type UPD1771C;
/***************************************************************************
PROTOTYPES
***************************************************************************/
DECLARE_READ8_DEVICE_HANDLER( upd1771_r );
DECLARE_WRITE8_DEVICE_HANDLER( upd1771_w );
WRITE_LINE_DEVICE_HANDLER( upd1771_pcm_w );
#endif /* __UPD1771_H__ */ #endif /* __UPD1771_H__ */

2
src/mess/drivers/apc.c
View File

@ -488,7 +488,7 @@ static ADDRESS_MAP_START( apc_io, AS_IO, 16, apc_state )
// 0x5a APU data (Arithmetic Processing Unit!) // 0x5a APU data (Arithmetic Processing Unit!)
// 0x5b, Power Off // 0x5b, Power Off
// 0x5e APU status/command // 0x5e APU status/command
AM_RANGE(0x60, 0x61) AM_DEVREADWRITE8_LEGACY("upd1771c", upd1771_r, upd1771_w, 0x00ff ) AM_RANGE(0x60, 0x61) AM_DEVREADWRITE8("upd1771c", upd1771c_device, read, write, 0x00ff)
// AM_RANGE(0x68, 0x6f) i8255 , ODA printer port (A: status (R) B: data (W) C: command (W)) // AM_RANGE(0x68, 0x6f) i8255 , ODA printer port (A: status (R) B: data (W) C: command (W))
// 0x70, 0x76 AM_DEVREADWRITE8("upd7220_btm", upd7220_device, read, write, 0x00ff) // 0x70, 0x76 AM_DEVREADWRITE8("upd7220_btm", upd7220_device, read, write, 0x00ff)
// 0x71, 0x77 IDA Controller // 0x71, 0x77 IDA Controller

4
src/mess/drivers/scv.c
View File

@ -86,7 +86,7 @@ static ADDRESS_MAP_START( scv_mem, AS_PROGRAM, 8, scv_state )
AM_RANGE( 0x2000, 0x3403 ) AM_RAM AM_SHARE("videoram") /* VRAM + 4 registers */ AM_RANGE( 0x2000, 0x3403 ) AM_RAM AM_SHARE("videoram") /* VRAM + 4 registers */
AM_RANGE( 0x3600, 0x3600 ) AM_DEVWRITE_LEGACY("upd1771c", upd1771_w ) AM_RANGE( 0x3600, 0x3600 ) AM_DEVWRITE("upd1771c", upd1771c_device, write)
AM_RANGE( 0x8000, 0x9fff ) AM_ROMBANK("bank0") AM_RANGE( 0x8000, 0x9fff ) AM_ROMBANK("bank0")
AM_RANGE( 0xa000, 0xbfff ) AM_ROMBANK("bank1") AM_RANGE( 0xa000, 0xbfff ) AM_ROMBANK("bank1")
@ -320,7 +320,7 @@ WRITE8_MEMBER( scv_state::scv_portc_w )
m_portc = data; m_portc = data;
scv_set_banks(); scv_set_banks();
upd1771_pcm_w( m_upd1771c, m_portc & 0x08 ); m_upd1771c->pcm_write(m_portc & 0x08);
} }