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Documented TomCat sound hardware
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mariuszw1
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0a70ebc7b8
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@ -4,14 +4,16 @@
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Driver by Mariusz Wojcieszek
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Notes/ToDo:
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Notes:
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- game has no sound, while sound hardware was developed, sound program was
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not prepared
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ToDo:
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- add proper timing of interrupts and framerate (currently commented out,
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as they cause test mode to hang)
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- vector quality appears to be worse than original game (compared to original
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game videos)
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- verify controls
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- sound hardware (6502, 2xPOKEY, YM2151, TMS5220, 6532) is not emulated, program
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for sound was not written and game actually has no sound
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- implement game linking (after MAME supports network)
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- current implementation of 68010 <-> tms32010 is a little bit hacky, after
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tms32010 is started by 68010, 68010 is suspended until tms32010 reads command
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@ -23,9 +25,14 @@
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#include "deprecat.h"
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#include "cpu/m68000/m68000.h"
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#include "cpu/tms32010/tms32010.h"
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#include "cpu/m6502/m6502.h"
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#include "video/vector.h"
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#include "video/avgdvg.h"
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#include "machine/timekpr.h"
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#include "machine/6532riot.h"
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#include "sound/pokey.h"
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#include "sound/5220intf.h"
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#include "sound/2151intf.h"
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static int tomcat_control_num;
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static UINT16 *tomcat_shared_ram;
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@ -264,6 +271,32 @@ static ADDRESS_MAP_START( dsp_io_map, ADDRESS_SPACE_IO, 16 )
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AM_RANGE(TMS32010_BIO, TMS32010_BIO) AM_READ(dsp_BIO_r)
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ADDRESS_MAP_END
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static WRITE8_HANDLER(soundlatches_w)
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{
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switch(offset)
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{
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case 0x00: break; // XLOAD 0 Write the Sequential ROM counter Low Byte
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case 0x20: break; // XLOAD 1 Write the Sequential ROM counter High Byte
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case 0x40: break; // SOUNDWR Write to Sound Interface Latch (read by Main)
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case 0x60: break; // unused
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case 0x80: break; // XREAD Read the Sequential ROM (64K bytes) and increment the counter
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case 0xa0: break; // unused
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case 0xc0: break; // SOUNDREAD Read the Sound Interface Latch (written by Main)
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}
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}
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static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
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AM_RANGE(0x0000, 0x1fff) AM_RAM
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AM_RANGE(0x2000, 0x2001) AM_DEVREADWRITE(SOUND, "ym", ym2151_r, ym2151_w)
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AM_RANGE(0x3000, 0x30df) AM_WRITE(soundlatches_w)
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AM_RANGE(0x30e0, 0x30e0) AM_NOP // COINRD Inputs: D7 = Coin L, D6 = Coin R, D5 = SOUNDFLAG
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AM_RANGE(0x5000, 0x507f) AM_RAM // 6532 ram
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AM_RANGE(0x5080, 0x509f) AM_DEVREADWRITE(RIOT6532, "riot", riot6532_r, riot6532_w)
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AM_RANGE(0x6000, 0x601f) AM_DEVREADWRITE(SOUND, "pokey1", pokey_r, pokey_w)
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AM_RANGE(0x7000, 0x701f) AM_DEVREADWRITE(SOUND, "pokey2", pokey_r, pokey_w)
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AM_RANGE(0x8000, 0xffff) AM_NOP // main sound program rom
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ADDRESS_MAP_END
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INPUT_PORTS_START( tomcat )
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PORT_START("IN0") /* INPUTS */
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PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(avgdvg_done_r, NULL)
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@ -314,6 +347,27 @@ static NVRAM_HANDLER(tomcat)
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memset(tomcat_nvram, 0x00, 0x800);
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}
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static const riot6532_interface tomcat_riot6532_intf =
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{
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NULL,
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/*
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PA0 = /WS OUTPUT (TMS-5220 WRITE STROBE)
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PA1 = /RS OUTPUT (TMS-5220 READ STROBE)
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PA2 = /READY INPUT (TMS-5220 READY FLAG)
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PA3 = FSEL OUTPUT Select TMS5220 clock;
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0 = 325 KHz (8 KHz sampling)
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1 = 398 KHz (10 KHz sampling)
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PA4 = /CC1 OUTPUT Coin Counter 1
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PA5 = /CC2 OUTPUT Coin Counter 2
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PA6 = /MUSRES OUTPUT (Reset the Yamaha)
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PA7 = MAINFLAG INPUT
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*/
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NULL,
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NULL,
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NULL, // PB0 - PB7 OUTPUT Speech Data
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NULL // connected to IRQ line of 6502
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};
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static MACHINE_DRIVER_START(tomcat)
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MDRV_CPU_ADD("main", M68010, XTAL_12MHz / 2)
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MDRV_CPU_PROGRAM_MAP(tomcat_map, 0)
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@ -324,6 +378,12 @@ static MACHINE_DRIVER_START(tomcat)
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MDRV_CPU_PROGRAM_MAP( dsp_map, 0 )
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MDRV_CPU_IO_MAP( dsp_io_map, 0 )
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MDRV_CPU_ADD("sound", M6502, XTAL_14_31818MHz / 8 )
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MDRV_CPU_FLAGS( CPU_DISABLE )
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MDRV_CPU_PROGRAM_MAP( sound_map, 0 )
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MDRV_RIOT6532_ADD("riot", XTAL_14_31818MHz / 8, tomcat_riot6532_intf)
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MDRV_QUANTUM_TIME(HZ(4000))
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MDRV_MACHINE_START(tomcat)
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@ -341,6 +401,20 @@ static MACHINE_DRIVER_START(tomcat)
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MDRV_VIDEO_START(avg_tomcat)
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MDRV_VIDEO_UPDATE(vector)
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MDRV_SPEAKER_STANDARD_STEREO("left", "right")
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MDRV_SOUND_ADD("pokey1", POKEY, XTAL_14_31818MHz / 8)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 0.20)
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MDRV_SOUND_ADD("pokey2", POKEY, XTAL_14_31818MHz / 8)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.20)
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MDRV_SOUND_ADD("tms", TMS5220, 325000)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 0.50)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.50)
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MDRV_SOUND_ADD("ym", YM2151, XTAL_14_31818MHz / 4)
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MDRV_SOUND_ROUTE(0, "left", 0.60)
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MDRV_SOUND_ROUTE(1, "right", 0.60)
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MACHINE_DRIVER_END
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GAME( 1985, tomcat, 0, tomcat, tomcat, 0, ROT0, "Atari", "TomCat (prototype)", GAME_NO_SOUND )
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GAME( 1985, tomcat, 0, tomcat, tomcat, 0, ROT0, "Atari", "TomCat (prototype)", 0 )
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