src/mess/drivers/pv1000.c
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|---|
| 7 | 7 | #include "emu.h" |
| 8 | 8 | #include "cpu/z80/z80.h" |
| 9 | 9 | #include "devices/cartslot.h" |
| 10 | #include "streams.h" |
| 10 | 11 | |
| 11 | 12 | |
| 13 | #define SOUND_PV1000 DEVICE_GET_INFO_NAME(pv1000_sound) |
| 14 | |
| 15 | |
| 12 | 16 | static UINT8 *pv1000_ram; |
| 13 | 17 | static UINT8 pv1000_io_regs[8]; |
| 14 | 18 | static UINT8 pv1000_fd_data; |
| 19 | static sound_stream *pv1000_sh_channel; |
| 15 | 20 | |
| 16 | 21 | |
| 17 | 22 | static WRITE8_HANDLER( pv1000_io_w ); |
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| 44 | 49 | static WRITE8_HANDLER( pv1000_io_w ) |
| 45 | 50 | { |
| 46 | 51 | // logerror("pv1000_io_w offset=%02x, data=%02x\n", offset, data ); |
| 47 | | if ( offset == 0x05 ) |
| 52 | switch ( offset |
| 48 | 53 | { |
| 54 | case 0x00: |
| 55 | case 0x01: |
| 56 | case 0x02: |
| 57 | case 0x03: |
| 58 | /* Sound i/O ports */ |
| 59 | break; |
| 60 | |
| 61 | case 0x05: |
| 49 | 62 | pv1000_fd_data = 1; |
| 63 | break; |
| 50 | 64 | } |
| 51 | 65 | |
| 52 | 66 | pv1000_io_regs[offset] = data; |
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| 186 | 200 | } |
| 187 | 201 | |
| 188 | 202 | |
| 203 | static STREAM_UPDATE( pv1000_sound_update ) |
| 204 | { |
| 205 | stream_sample_t *buffer = outputs[0]; |
| 206 | |
| 207 | while( samples > 0 ) |
| 208 | { |
| 209 | *buffer = 0; |
| 210 | buffer++; |
| 211 | samples--; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | |
| 216 | static DEVICE_START( pv1000_sound ) |
| 217 | { |
| 218 | pv1000_sh_channel = stream_create( device, 0, 1, device->clock, 0, pv1000_sound_update ); |
| 219 | } |
| 220 | |
| 221 | |
| 222 | static DEVICE_GET_INFO( pv1000_sound ) |
| 223 | { |
| 224 | switch (state) |
| 225 | { |
| 226 | /* --- the following bits of info are returned as pointers to data or functions --- */ |
| 227 | case DEVINFO_FCT_START: info->start = DEVICE_START_NAME(pv1000_sound); break; |
| 228 | |
| 229 | /* --- the following bits of info are returned as NULL-terminated strings --- */ |
| 230 | case DEVINFO_STR_NAME: strcpy(info->s, "NEC D65010G031"); break; |
| 231 | case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break; |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | |
| 189 | 236 | static TIMER_DEVICE_CALLBACK( pv1000_irq ) |
| 190 | 237 | { |
| 191 | 238 | const device_config *cpu = devtag_get_device( timer->machine, "maincpu" ); |
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| 237 | 284 | MDRV_PALETTE_INIT( pv1000 ) |
| 238 | 285 | MDRV_GFXDECODE( pv1000 ) |
| 239 | 286 | |
| 240 | | /* uPD4016c / D65010G031 - Video & sound chip */ |
| 287 | /* |
| 241 | 288 | MDRV_VIDEO_UPDATE( pv1000 ) |
| 242 | 289 | |
| 290 | MDRV_SPEAKER_STANDARD_MONO("mono") |
| 291 | MDRV_SOUND_ADD( "pv1000_sound", PV1000, 17897725 ) |
| 292 | MDRV_SOUND_ROUTE( ALL_OUTPUTS, "mono", 1.00 ) |
| 293 | |
| 243 | 294 | /* Cartridge slot */ |
| 244 | 295 | MDRV_CARTSLOT_ADD( "cart" ) |
| 245 | 296 | MDRV_CARTSLOT_EXTENSION_LIST( "bin" ) |