src/mess/machine/pce.c
| r976 | r977 | |
|---|
| 175 | 175 | #endif |
| 176 | 176 | return (ret); |
| 177 | 177 | } |
| 178 | |
| 179 | WRITE8_HANDLER( pce_cd_intf_w ) { |
| 180 | switch( offset & 0x0F ) { |
| 181 | case 0x00: /* CDC status */ |
| 182 | case 0x01: /* CDC command / status / data */ |
| 183 | case 0x02: /* ADPCM / CD control */ |
| 184 | case 0x03: /* BRAM lock / CD status */ |
| 185 | case 0x04: /* CD reset */ |
| 186 | case 0x05: /* Convert PCM data / PCM data */ |
| 187 | case 0x06: /* PCM data */ |
| 188 | case 0x07: /* BRAM unlock / CD status */ |
| 189 | case 0x08: /* ADPCM address (LSB) / CD data */ |
| 190 | case 0x09: /* ADPCM address (MSB) */ |
| 191 | case 0x0A: /* ADPCM RAM data port */ |
| 192 | case 0x0B: /* ADPCM DMA control */ |
| 193 | case 0x0C: /* ADPCM status */ |
| 194 | case 0x0D: /* ADPCM address control */ |
| 195 | case 0x0E: /* ADPCM playback rate */ |
| 196 | case 0x0F: /* ADPCM and CD audio fade timer */ |
| 197 | break; |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | READ8_HANDLER( pce_cd_intf_r ) { |
| 202 | UINT8 data = 0xFF; |
| 203 | |
| 204 | switch( offset & 0x0F ) { |
| 205 | case 0x00: /* CDC status */ |
| 206 | case 0x01: /* CDC command / status / data */ |
| 207 | case 0x02: /* ADPCM / CD control */ |
| 208 | case 0x03: /* BRAM lock / CD status */ |
| 209 | case 0x04: /* CD reset */ |
| 210 | case 0x05: /* Convert PCM data / PCM data */ |
| 211 | case 0x06: /* PCM data */ |
| 212 | case 0x07: /* BRAM unlock / CD status */ |
| 213 | case 0x08: /* ADPCM address (LSB) / CD data */ |
| 214 | case 0x09: /* ADPCM address (MSB) */ |
| 215 | case 0x0A: /* ADPCM RAM data port */ |
| 216 | case 0x0B: /* ADPCM DMA control */ |
| 217 | case 0x0C: /* ADPCM status */ |
| 218 | case 0x0D: /* ADPCM address control */ |
| 219 | case 0x0E: /* ADPCM playback rate */ |
| 220 | case 0x0F: /* ADPCM and CD audio fade timer */ |
| 221 | break; |
| 222 | } |
| 223 | |
| 224 | return data; |
| 225 | } |
| 226 | |
src/mess/drivers/pce.c
| r976 | r977 | |
|---|
| 51 | 51 | AM_RANGE( 0x1FEC00, 0x1FEFFF) AM_READWRITE( H6280_timer_r, H6280_timer_w ) |
| 52 | 52 | AM_RANGE( 0x1FF000, 0x1FF3FF) AM_READWRITE( pce_joystick_r, pce_joystick_w ) |
| 53 | 53 | AM_RANGE( 0x1FF400, 0x1FF7FF) AM_READWRITE( H6280_irq_status_r, H6280_irq_status_w ) |
| 54 | AM_RANGE( 0x1FF800, 0x1FFBFF) AM_READWRITE( pce_cd_intf_r, pce_cd_intf_w ) |
| 54 | 55 | ADDRESS_MAP_END |
| 55 | 56 | |
| 56 | 57 | ADDRESS_MAP_START( pce_io , ADDRESS_SPACE_IO, 8) |