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https://github.com/holub/mame
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More work on cvs.c
- use tms rom clock as sense input for the s2650. darkwar now speaks again on startup. - only one latch used for sound & speech. - hooked up 393Hz signal to "dac3" - pcb pictures indicate discrete logic on the sound board. Marked all games as GAME_IMPERFECT_SOUND since we seem to miss some sounds. - 4bit dac remains mysterious
This commit is contained in:
Couriersud
parent
611759686d
commit
92388c1e02
@ -80,6 +80,14 @@ Driver by
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Hardware Info
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Malcolm & Darren
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Additional work
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2009 Couriersud
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Todo & FIXME:
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- the board most probably has discrete circuits. The 393Hz tone used
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for shots (superbike) and collisions (8ball) is just a guess.
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***************************************************************************/
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#include "driver.h"
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@ -123,6 +131,8 @@ static UINT8 character_banking_mode;
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static UINT16 character_ram_page_start;
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static UINT16 speech_rom_bit_address;
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static int dac3_state[4] = {0,0,0,0};
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UINT8 cvs_get_character_banking_mode(void)
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@ -296,23 +306,30 @@ static READ8_HANDLER( cvs_input_r )
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* Timing
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*
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*************************************/
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#if 0
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static READ8_HANDLER( cvs_393hz_clock_r )
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{
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return cvs_393hz_clock ? 0x80 : 0;
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}
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#endif
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static READ8_DEVICE_HANDLER( tms_clock_r )
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{
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return tms5110_romclk_r(device, 0) ? 0x80 : 0;
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}
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static TIMER_CALLBACK( cvs_393hz_timer_cb )
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{
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cvs_393hz_clock = !cvs_393hz_clock;
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if (dac3_state[2])
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dac_w(devtag_get_device(machine, "dac3"), 0, cvs_393hz_clock * 0xff);
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}
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static void start_393hz_timer(running_machine *machine)
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{
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cvs_393hz_timer = timer_alloc(machine, cvs_393hz_timer_cb, NULL);
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timer_adjust_periodic(cvs_393hz_timer, ATTOTIME_IN_HZ(2*393), 0, ATTOTIME_IN_HZ(2*393));
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timer_adjust_periodic(cvs_393hz_timer, ATTOTIME_IN_HZ(30*393), 0, ATTOTIME_IN_HZ(30*393));
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}
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@ -326,8 +343,13 @@ static void start_393hz_timer(running_machine *machine)
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static WRITE8_DEVICE_HANDLER( cvs_4_bit_dac_data_w )
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{
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UINT8 dac_value;
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static int old_data[4] = {0,0,0,0};
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//LOG(("4BIT: %02x %02x\n", offset, data));
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if (data != old_data[offset])
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{
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LOG(("4BIT: %02x %02x\n", offset, data));
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old_data[offset] = data;
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}
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cvs_4_bit_dac_data[offset] = data >> 7;
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/* merge into D0-D3 */
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@ -340,7 +362,15 @@ static WRITE8_DEVICE_HANDLER( cvs_4_bit_dac_data_w )
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dac_data_w(device, (dac_value << 4) | dac_value);
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}
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static WRITE8_DEVICE_HANDLER( cvs_unknown_w )
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{
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if (data != dac3_state[offset])
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{
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LOG(("Unknown: %02x %02x\n", offset, data));
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dac3_state[offset] = data;
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}
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}
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/*************************************
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*
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@ -368,7 +398,7 @@ static READ8_HANDLER( cvs_speech_command_r )
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/* FIXME: this was by observation on board ???
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* -bit 7 is TMS status (active LO) */
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return ((tms5110_ctl_r(devtag_get_device(space->machine, "tms"), 0) ^ 1) << 7)
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| (soundlatch2_r(space, 0) & 0x7f);
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| (soundlatch_r(space, 0) & 0x7f);
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}
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@ -433,7 +463,7 @@ static WRITE8_HANDLER( audio_command_w )
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{
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LOG(("data %02x\n", data));
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/* cause interrupt on audio CPU if bit 7 set */
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soundlatch2_w(space, 0, data);
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//soundlatch2_w(space, 0, data);
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soundlatch_w(space, 0, data);
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cvs_slave_cpu_interrupt(space->machine, "audiocpu", data & 0x80 ? 1 : 0);
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}
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@ -460,9 +490,6 @@ MACHINE_START( cvs )
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start_393hz_timer(machine);
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soundlatch_setclearedvalue(machine, 0xff);
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soundlatch2_clear_w(NULL, 0, 0);
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/* register state save */
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state_save_register_global_pointer(machine, cvs_color_ram, 0x400);
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state_save_register_global_pointer(machine, cvs_palette_ram, 0x10);
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@ -518,12 +545,13 @@ static ADDRESS_MAP_START( cvs_dac_cpu_map, ADDRESS_SPACE_PROGRAM, 8 )
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AM_RANGE(0x1800, 0x1800) AM_READ(soundlatch_r)
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AM_RANGE(0x1840, 0x1840) AM_DEVWRITE("dac1", dac_w)
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AM_RANGE(0x1880, 0x1883) AM_DEVWRITE("dac2", cvs_4_bit_dac_data_w) AM_BASE(&cvs_4_bit_dac_data)
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AM_RANGE(0x1884, 0x1887) AM_WRITENOP /* not connected to anything */
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AM_RANGE(0x1884, 0x1887) AM_DEVWRITE("dac3", cvs_unknown_w) /* ???? not connected to anything */
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( cvs_dac_cpu_io_map, ADDRESS_SPACE_IO, 8 )
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AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_READ(cvs_393hz_clock_r)
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/* doesn't look like it is used at all */
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//AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_READ(cvs_393hz_clock_r)
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ADDRESS_MAP_END
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@ -546,11 +574,12 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( cvs_speech_cpu_io_map, ADDRESS_SPACE_IO, 8 )
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AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_READ(cvs_393hz_clock_r)
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/* romclk is much more probable, 393 Hz results in timing issues */
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// AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_READ(cvs_393hz_clock_r)
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AM_RANGE(S2650_SENSE_PORT, S2650_SENSE_PORT) AM_DEVREAD("tms", tms_clock_r)
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ADDRESS_MAP_END
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/*************************************
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*
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* Standard CVS port definitions
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@ -1014,6 +1043,9 @@ static MACHINE_DRIVER_START( cvs )
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MDRV_SOUND_ADD("dac2", DAC, 0)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
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MDRV_SOUND_ADD("dac3", DAC, 0)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
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MDRV_SOUND_ADD("tms", TMS5100, 640000)
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MDRV_SOUND_CONFIG(tms5100_interface)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
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@ -1601,24 +1633,24 @@ static DRIVER_INIT( raiders )
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*
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*************************************/
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GAME( 1981, cosmos, 0, cvs, cosmos, 0, ROT90, "Century Electronics", "Cosmos", GAME_NO_COCKTAIL )
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GAME( 1981, darkwar, 0, cvs, darkwar, 0, ROT90, "Century Electronics", "Dark Warrior", GAME_NO_COCKTAIL )
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GAME( 1981, spacefrt, 0, cvs, spacefrt, 0, ROT90, "Century Electronics", "Space Fortress (CVS)", GAME_NO_COCKTAIL )
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GAME( 1982, 8ball, 0, cvs, 8ball, 0, ROT90, "Century Electronics", "Video Eight Ball", GAME_NO_COCKTAIL )
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GAME( 1982, 8ball1, 8ball, cvs, 8ball, 0, ROT90, "Century Electronics", "Video Eight Ball (Rev.1)", GAME_NO_COCKTAIL )
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GAME( 1982, logger, 0, cvs, logger, 0, ROT90, "Century Electronics", "Logger", GAME_NO_COCKTAIL )
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GAME( 1982, dazzler, 0, cvs, dazzler, 0, ROT90, "Century Electronics", "Dazzler", GAME_NO_COCKTAIL )
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GAME( 1982, wallst, 0, cvs, wallst, 0, ROT90, "Century Electronics", "Wall Street", GAME_NO_COCKTAIL )
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GAME( 1982, radarzon, 0, cvs, radarzon, 0, ROT90, "Century Electronics", "Radar Zone", GAME_NO_COCKTAIL )
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GAME( 1982, radarzon1,radarzon, cvs, radarzon, 0, ROT90, "Century Electronics", "Radar Zone (Rev.1)", GAME_NO_COCKTAIL )
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GAME( 1982, radarzont,radarzon, cvs, radarzon, 0, ROT90, "Century Electronics (Tuni Electro Service Inc)", "Radar Zone (Tuni)", GAME_NO_COCKTAIL )
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GAME( 1982, outline, radarzon, cvs, radarzon, 0, ROT90, "Century Electronics", "Outline", GAME_NO_COCKTAIL )
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GAME( 1982, goldbug, 0, cvs, goldbug, 0, ROT90, "Century Electronics", "Gold Bug", GAME_NO_COCKTAIL )
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GAME( 1982, diggerc, 0, cvs, diggerc, 0, ROT90, "Century Electronics", "Digger (CVS)", GAME_NO_COCKTAIL )
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GAME( 1983, heartatk, 0, cvs, heartatk, 0, ROT90, "Century Electronics", "Heart Attack", GAME_NO_COCKTAIL )
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GAME( 1983, hunchbak, 0, cvs, hunchbak, 0, ROT90, "Century Electronics", "Hunchback (set 1)", GAME_NO_COCKTAIL )
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GAME( 1983, hunchbaka,hunchbak, cvs, hunchbak, hunchbka, ROT90, "Century Electronics", "Hunchback (set 2)", GAME_NO_COCKTAIL )
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GAME( 1983, superbik, 0, cvs, superbik, superbik, ROT90, "Century Electronics", "Superbike", GAME_NO_COCKTAIL )
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GAME( 1983, raiders, 0, cvs, raiders, raiders, ROT90, "Century Electronics", "Raiders", GAME_NO_COCKTAIL )
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GAME( 1983, hero, 0, cvs, hero, hero, ROT90, "Seatongrove Ltd", "Hero", GAME_NO_COCKTAIL )
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GAME( 1984, huncholy, 0, cvs, huncholy, huncholy, ROT90, "Seatongrove Ltd", "Hunchback Olympic", GAME_NO_COCKTAIL )
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GAME( 1981, cosmos, 0, cvs, cosmos, 0, ROT90, "Century Electronics", "Cosmos", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND )
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GAME( 1981, darkwar, 0, cvs, darkwar, 0, ROT90, "Century Electronics", "Dark Warrior", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1981, spacefrt, 0, cvs, spacefrt, 0, ROT90, "Century Electronics", "Space Fortress (CVS)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND )
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GAME( 1982, 8ball, 0, cvs, 8ball, 0, ROT90, "Century Electronics", "Video Eight Ball", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, 8ball1, 8ball, cvs, 8ball, 0, ROT90, "Century Electronics", "Video Eight Ball (Rev.1)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, logger, 0, cvs, logger, 0, ROT90, "Century Electronics", "Logger", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, dazzler, 0, cvs, dazzler, 0, ROT90, "Century Electronics", "Dazzler", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, wallst, 0, cvs, wallst, 0, ROT90, "Century Electronics", "Wall Street", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, radarzon, 0, cvs, radarzon, 0, ROT90, "Century Electronics", "Radar Zone", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, radarzon1,radarzon, cvs, radarzon, 0, ROT90, "Century Electronics", "Radar Zone (Rev.1)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, radarzont,radarzon, cvs, radarzon, 0, ROT90, "Century Electronics (Tuni Electro Service Inc)", "Radar Zone (Tuni)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, outline, radarzon, cvs, radarzon, 0, ROT90, "Century Electronics", "Outline", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, goldbug, 0, cvs, goldbug, 0, ROT90, "Century Electronics", "Gold Bug", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1982, diggerc, 0, cvs, diggerc, 0, ROT90, "Century Electronics", "Digger (CVS)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1983, heartatk, 0, cvs, heartatk, 0, ROT90, "Century Electronics", "Heart Attack", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1983, hunchbak, 0, cvs, hunchbak, 0, ROT90, "Century Electronics", "Hunchback (set 1)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1983, hunchbaka,hunchbak, cvs, hunchbak, hunchbka, ROT90, "Century Electronics", "Hunchback (set 2)", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1983, superbik, 0, cvs, superbik, superbik, ROT90, "Century Electronics", "Superbike", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1983, raiders, 0, cvs, raiders, raiders, ROT90, "Century Electronics", "Raiders", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1983, hero, 0, cvs, hero, hero, ROT90, "Seatongrove Ltd", "Hero", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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GAME( 1984, huncholy, 0, cvs, huncholy, huncholy, ROT90, "Seatongrove Ltd", "Hunchback Olympic", GAME_NO_COCKTAIL | GAME_IMPERFECT_SOUND)
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