src/mess/drivers/phc25.c
| r7474 | r7475 | |
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| 24 | 24 | TODO:
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| 25 | 25 | |
| 26 | 26 | - RAM should be 16KB
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| 27 | | - chargen ROM
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| 28 | 27 | - MC6847 mode selection lines
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| 29 | 28 | - keyboard
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| 30 | 29 | - cassette
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| r7474 | r7475 | |
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| 101 | 100 | cassette_output(state->cassette, BIT(data, 0) ? -1.0 : +1.0);
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| 102 | 101 | |
| 103 | 102 | /* internal/external character generator */
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| 104 | | mc6847_intext_w(state->mc6847, !BIT(data, 2));
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| 103 | mc6847_intext_w(state->mc6847, |
| 105 | 104 | |
| 106 | 105 | /* cassette motor */
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| 107 | 106 | cassette_change_state(state->cassette, CASSETTE_MASK_MOTOR, BIT(data, 1) ? CASSETTE_MOTOR_ENABLED : CASSETTE_MOTOR_DISABLED);
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| r7474 | r7475 | |
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| 286 | 285 | {
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| 287 | 286 | phc25_state *state = (phc25_state *)machine->driver_data;
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| 288 | 287 | |
| 289 | | return state->char_rom[(ch << 4) | (line & 0x0f)];
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| 288 | return state->char_rom[((ch-2) * |
| 290 | 289 | }
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| 291 | 290 | |
| 292 | 291 | static const mc6847_interface mc6847_intf =
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| r7474 | r7475 | |
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| 305 | 304 | DEVCB_NULL
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| 306 | 305 | };
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| 307 | 306 | |
| 308 | | static VIDEO_START( phc25 )
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| 307 | static VIDEO_START( pal |
| 309 | 308 | {
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| 310 | 309 | phc25_state *state = (phc25_state *)machine->driver_data;
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| 311 | 310 | |
| r7474 | r7475 | |
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| 313 | 312 | state->mc6847 = devtag_get_device(machine, MC6847_TAG);
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| 314 | 313 | |
| 315 | 314 | /* find memory regions */
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| 315 | state->char_rom = memory_region(machine, Z80_TAG) + 0x5000;
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| 316 | }
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| 317 | |
| 318 | static VIDEO_START( ntsc )
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| 319 | {
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| 320 | phc25_state *state = (phc25_state *)machine->driver_data;
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| 321 | |
| 322 | /* find devices */
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| 323 | state->mc6847 = devtag_get_device(machine, MC6847_TAG);
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| 324 | |
| 325 | /* find memory regions */
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| 316 | 326 | state->char_rom = memory_region(machine, "chargen");
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| 317 | 327 | }
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| 318 | 328 | |
| r7474 | r7475 | |
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| 371 | 381 | MDRV_MACHINE_START(phc25)
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| 372 | 382 | |
| 373 | 383 | /* video hardware */
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| 374 | | MDRV_VIDEO_START(phc25)
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| 375 | 384 | MDRV_VIDEO_UPDATE(phc25)
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| 376 | 385 | |
| 377 | 386 | /* sound hardware */
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| r7474 | r7475 | |
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| 404 | 413 | MDRV_MC6847_ADD(MC6847_TAG, mc6847_intf)
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| 405 | 414 | MDRV_MC6847_TYPE(M6847_VERSION_ORIGINAL_PAL)
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| 406 | 415 | MDRV_MC6847_CHAR_ROM(phc25_char_rom_r)
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| 416 | |
| 417 | MDRV_VIDEO_START(pal)
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| 407 | 418 | MACHINE_DRIVER_END
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| 408 | 419 | |
| 409 | 420 | static MACHINE_DRIVER_START( ntsc )
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| r7474 | r7475 | |
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| 421 | 432 | MDRV_MC6847_ADD(MC6847_TAG, mc6847_intf)
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| 422 | 433 | MDRV_MC6847_TYPE(M6847_VERSION_ORIGINAL_NTSC)
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| 423 | 434 | MDRV_MC6847_CHAR_ROM(phc25_char_rom_r)
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| 435 | |
| 436 | MDRV_VIDEO_START(ntsc)
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| 424 | 437 | MACHINE_DRIVER_END
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| 425 | 438 | |
| 426 | 439 | /* ROMs */
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| r7474 | r7475 | |
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| 430 | 443 | ROM_LOAD( "phc25rom.0", 0x0000, 0x2000, CRC(fa28336b) SHA1(582376bee455e124de24ba4ac02326c8a592fa5a) )
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| 431 | 444 | ROM_LOAD( "phc25rom.1", 0x2000, 0x2000, CRC(38fd578b) SHA1(dc3db78c0cdc89f1605200d39535be65a4091705) )
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| 432 | 445 | ROM_LOAD( "phc25rom.2", 0x4000, 0x2000, CRC(54392b27) SHA1(1587827fe9438780b50164727ce3fdea1b98078a) )
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| 433 | | |
| 434 | | ROM_REGION( 0x1000, "chargen", 0 )
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| 435 | | ROM_LOAD( "chargen.bin", 0x0000, 0x1000, NO_DUMP )
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| 436 | 446 | ROM_END
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| 437 | 447 | |
| 438 | 448 | ROM_START( phc25j )
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