static int AY8910_init(const char *chip_name,int chip,
int clock,int volume,int sample_rate,
mem_read_handler portAread,mem_read_handler portBread,
mem_write_handler portAwrite,mem_write_handler portBwrite)
{
struct AY8910 *PSG = &AYPSG[chip];
int i;
#ifdef SINGLE_CHANNEL_MIXER
char buf[40];
int gain = MIXER_GET_GAIN(volume);
int pan = MIXER_GET_PAN(volume);
#else
char buf[3][40];
const char *name[3];
int vol[3];
#endif
/* the step clock for the tone and noise generators is the chip clock */
/* divided by 8; for the envelope generator of the AY-3-8910, it is half */
/* that much (clock/16), but the envelope of the YM2149 goes twice as */
/* fast, therefore again clock/8. */
// causes crashes with YM2610 games - overflow?
// if (options.use_filter)
sample_rate = clock/8;
memset(PSG,0,sizeof(struct AY8910));
PSG->PortAread = portAread;
PSG->PortBread = portBread;
PSG->PortAwrite = portAwrite;
PSG->PortBwrite = portBwrite;
#ifdef SINGLE_CHANNEL_MIXER
for (i = 0;i < 3;i++)
PSG->mix_vol[i] = MIXER_GET_LEVEL(volume);
sprintf(buf,"%s #%d",chip_name,chip);
PSG->Channel = stream_init(buf,MIXERG(100,gain,pan),sample_rate,chip,AY8910Update);
#else
for (i = 0;i < 3;i++)
{
vol[i] = volume;
name[i] = buf[i];
sprintf(buf[i],"%s #%d Ch %c",chip_name,chip,'A'+i);
}
PSG->Channel = stream_init_multi(3,name,vol,sample_rate,chip,AY8910Update);
#endif
if (PSG->Channel == -1)
return 1;
return 0;
}
static struct GfxDecodeInfo gfxdecodeinfo[] =
{
{ REGION_GFX1, 0x0000, &charlayout, 0, 16 },
{ REGION_GFX2, 0x0000, &spritelayout1, 16*4, 16 }, /* upper half */
{ REGION_GFX2, 0x0010, &spritelayout1, 16*4, 16 }, /* lower half */
{ REGION_GFX2, 0x0000, &spritelayout2, 16*4, 16 },
{ -1 } /* end of array */
};
static struct AY8910interface ay8910_interface =
{
5, /* 5 chips */
14318180/8, /* 1.789772727 MHz */
{ MIXERG(10,MIXER_GAIN_4x,MIXER_PAN_RIGHT), MIXERG(10,MIXER_GAIN_4x,MIXER_PAN_LEFT),
MIXERG(20,MIXER_GAIN_4x,MIXER_PAN_RIGHT), MIXERG(20,MIXER_GAIN_4x,MIXER_PAN_RIGHT), MIXERG(20,MIXER_GAIN_4x,MIXER_PAN_LEFT) },
/* R L | R R L */
/* effects | music */
{ 0, 0, gyruss_portA_r },
{ 0 },
{ 0 },
{ gyruss_filter0_w, gyruss_filter1_w }
};
static struct DACinterface dac_interface =
{
1,
{ MIXER(50,MIXER_PAN_LEFT) }
};
};
static struct GfxDecodeInfo gfxdecodeinfo[] =
{
{ REGION_GFX1, 0x0000, &charlayout, 0, 8 },
{ REGION_GFX1, 0x0000, &spritelayout, 0, 8 },
{ -1 } /* end of array */
};
static struct AY8910interface ay8910_interface =
{
2, /* 2 chips */
14318000/8, /* 1.78975 Mhz */
{ MIXERG(30,MIXER_GAIN_2x,MIXER_PAN_CENTER), MIXERG(30,MIXER_GAIN_2x,MIXER_PAN_CENTER) },
{ soundlatch_r },
{ scramble_portB_r },
{ 0 },
{ 0 }
};
static struct MachineDriver machine_driver_amidar =
{
/* basic machine hardware */
{
{
CPU_Z80,
18432000/6, /* 3.072 Mhz */
PORT_DIPSETTING( 0x06, "A 1/1 B 1/6 C 1/1" )
PORT_DIPNAME( 0x08, 0x00, DEF_STR( Cabinet ) )
PORT_DIPSETTING( 0x00, DEF_STR( Upright ) )
PORT_DIPSETTING( 0x08, DEF_STR( Cocktail ) )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP | IPF_4WAY )
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN | IPF_4WAY )
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
INPUT_PORTS_END
struct AY8910interface frogger_ay8910_interface =
{
1, /* 1 chip */
14318000/8, /* 1.78975 MHz */
{ MIXERG(80,MIXER_GAIN_2x,MIXER_PAN_CENTER) },
{ soundlatch_r },
{ frogger_portB_r },
{ 0 },
{ 0 }
};
static MACHINE_DRIVER_START( frogger )
/* basic machine hardware */
MDRV_IMPORT_FROM(galaxian_base)
MDRV_CPU_MODIFY("main")
MDRV_CPU_MEMORY(readmem,writemem)
MDRV_CPU_ADD(Z80,14318000/8)
{ REGION_GFX2, 0, &mcatadv_tiles16x16x4_layout, 0, 0x200 },
{ REGION_GFX3, 0, &mcatadv_tiles16x16x4_layout, 0, 0x200 },
{ -1 }
};
/* Stolen from Psikyo.c */
static void sound_irq( int irq )
{
cpu_set_irq_line(1,0,irq ? ASSERT_LINE : CLEAR_LINE);
}
struct YM2610interface mcatadv_ym2610_interface =
{
1,
16000000/2, /* ? */
{ MIXERG(8,MIXER_GAIN_4x,MIXER_PAN_CENTER) }, // volume of AY-3-8910 voices
{ 0 }, /* A_r */
{ 0 }, /* B_r */
{ 0 }, /* A_w */
{ 0 }, /* B_w */
{ sound_irq }, /* irq */
{ REGION_SOUND1 }, /* delta_t */
{ REGION_SOUND1 }, /* adpcm */
{ YM3012_VOL(100,MIXER_PAN_LEFT,100,MIXER_PAN_RIGHT) }
};
static MACHINE_INIT( mcatadv )
{
watchdog_reset_r(0);
}
#define Z80_CLOCK (6000000)
#define YM_CLOCK (8000000)
static void YM_2610IRQHandler(int irq);
static unsigned int z80_in_neo(unsigned int address);
static void z80_out_neo(unsigned int address, unsigned int data);
static int nbnk8, nbnkc, nbnke, nbnkf;
static struct YM2610interface neogeo_ym2610_interface =
{
1,
8000000,
{ MIXERG(30,MIXER_GAIN_1x,MIXER_PAN_CENTER) }, // PSG volume
{ 0 },
{ 0 },
{ 0 },
{ 0 },
{ YM_2610IRQHandler },
{ RGN_SAMP2 },
{ RGN_SAMP1 },
{ YM3012_VOL(100,MIXER_PAN_LEFT,100,MIXER_PAN_RIGHT) } // FM volume
};
static READ_HANDLER( neo_readport2 )
{
return z80_in_neo(offset);
}
{ REGION_GFX3, 0x08000, &tilelayout, 256, 16 },
{ REGION_GFX3, 0x09000, &tilelayout, 256, 16 },
{ REGION_GFX3, 0x0a000, &tilelayout, 256, 16 },
{ REGION_GFX3, 0x0b000, &tilelayout, 256, 16 },
{ -1 } /* end of array */
};
/* actually there is one AY8910 and one YM2203, but the sound core doesn't */
/* support that so we use 2 YM2203 */
static struct YM2203interface ym2203_interface =
{
2, /* 2 chips */
1250000, /* 1.25 MHz */
{ YM2203_VOL(20,MIXERG(20,MIXER_GAIN_2x,MIXER_PAN_CENTER)), YM2203_VOL(20,MIXERG(20,MIXER_GAIN_2x,MIXER_PAN_CENTER)) },
{ soundlatch_r },
{ soundlatch2_r },
{ 0 },
{ 0 }
};
static struct MachineDriver machine_driver_citycon =
{
/* basic machine hardware */
{
{
CPU_M6809,
2048000, /* 2.048 Mhz ??? */
8000000, /* 8 MHz */
{ 50 },
{ 0 },
{ 0 },
{ 0 },
{ 0 },
{ sound_irq },
{ REGION_SOUND1 },
{ YM3012_VOL(100,MIXER_PAN_LEFT,100,MIXER_PAN_RIGHT) }
};
struct YM2610interface ym2610_interface =
{
1,
8000000,
{ MIXERG(15,MIXER_GAIN_4x,MIXER_PAN_CENTER) },
{ 0 },
{ 0 },
{ 0 },
{ 0 },
{ sound_irq },
{ REGION_SOUND2 },
{ REGION_SOUND1 },
{ YM3012_VOL(20,MIXER_PAN_LEFT,20,MIXER_PAN_RIGHT) }
};
/******************************************************************************/
static NVRAM_HANDLER( bbusters )
{
if( read_or_write ) {
