/*
Atari Tomcat prototype hardware
Driver by Mariusz Wojcieszek
Notes:
- game has no sound, while sound hardware was developed, sound program was
not prepared
ToDo:
- add proper timing of interrupts and framerate (currently commented out,
as they cause test mode to hang)
- vector quality appears to be worse than original game (compared to original
game videos)
- verify controls
- implement game linking (after MAME supports network)
- current implementation of 68010 <-> tms32010 is a little bit hacky, after
tms32010 is started by 68010, 68010 is suspended until tms32010 reads command
and starts executing
*/
#include "driver.h"
#include "deprecat.h"
#include "cpu/m68000/m68000.h"
#include "cpu/tms32010/tms32010.h"
#include "cpu/m6502/m6502.h"
#include "video/vector.h"
#include "video/avgdvg.h"
#include "machine/timekpr.h"
#include "machine/6532riot.h"
#include "sound/pokey.h"
#include "sound/5220intf.h"
#include "sound/2151intf.h"
static int tomcat_control_num;
static UINT16 *tomcat_shared_ram;
static UINT8 *tomcat_nvram;
static int dsp_BIO;
static int dsp_idle;
static WRITE16_HANDLER(tomcat_adcon_w)
{
tomcat_control_num = data;
}
static READ16_HANDLER(tomcat_adcread_r)
{
switch( tomcat_control_num )
{
case 0: return input_port_read(space->machine, "STICKY");
case 1: return input_port_read(space->machine, "STICKX");
default: return 0x7f7f;
}
}
static READ16_HANDLER(tomcat_inputs_r)
{
UINT16 result = 0;
if (ACCESSING_BITS_8_15)
result |= input_port_read(space->machine, "IN0") << 8;
return result;
}
static WRITE16_HANDLER(tomcat_led1on_w)
{
set_led_status(1, 1);
}
static WRITE16_HANDLER(tomcat_led2on_w)
{
set_led_status(2, 1);
}
static WRITE16_HANDLER(tomcat_led2off_w)
{
set_led_status(2, 0);
}
static WRITE16_HANDLER(tomcat_led1off_w)
{
set_led_status(1, 0);
}
static WRITE16_HANDLER(tomcat_lnkmodel_w)
{
// Link Mode Low (address strobe)
// Master does not respond to Interrupts
}
static WRITE16_HANDLER(tomcat_errl_w)
{
// Link Error Flag Low (address strobe)
}
static WRITE16_HANDLER(tomcat_errh_w)
{
// Link Error Flag High (address strobe)
}
static WRITE16_HANDLER(tomcat_ackl_w)
{
// Link ACK Flag Low (address strobe)
}
static WRITE16_HANDLER(tomcat_ackh_w)
{
// Link ACK Flag High (address strobe)
}
static WRITE16_HANDLER(tomcat_lnkmodeh_w)
{
// Link Mode high (address strobe)
}
static WRITE16_HANDLER(tomcat_txbuffl_w)
{
// Link Buffer Control (address strobe)
}
static WRITE16_HANDLER(tomcat_txbuffh_w)
{
// Link Buffer Control high (address strobe)
// Turn off TX (Link) Buffer
}
static WRITE16_HANDLER(tomcat_sndresl_w)
{
// Sound Reset Low (Address Strobe)
// Reset Sound System
}
static WRITE16_HANDLER(tomcat_sndresh_w)
{
// Sound Reset high (Address Strobe)
// Release reset of sound system
}
static WRITE16_HANDLER(tomcat_mresl_w)
{
// 320 Reset Low (Address Strobe)
// Reset TMS320
cpu_set_input_line(cputag_get_cpu(space->machine, "dsp"), INPUT_LINE_RESET, ASSERT_LINE);
}
static WRITE16_HANDLER(tomcat_mresh_w)
{
// 320 Reset high (Address Strobe)
// Release reset of TMS320
dsp_BIO = 0;
cpu_set_input_line(cputag_get_cpu(space->machine, "dsp"), INPUT_LINE_RESET, CLEAR_LINE);
}
static WRITE16_HANDLER(tomcat_irqclr_w)
{
// Clear IRQ Latch (Address Strobe)
cpu_set_input_line(space->machine->cpu[0], 1, CLEAR_LINE);
}
static READ16_HANDLER(tomcat_inputs2_r)
{
/*
* D15 LNKFLAG (Game Link)
* D14 PC3 " "
* D13 PC2 " "
* D12 PC0 " "
* D11 MAINFLAG (Sound System)
* D10 SOUNDFLAG " "
* D9 /IDLE* (TMS320 System)
* D8
*/
return dsp_idle ? 0 : (1 << 9);
}
static READ16_HANDLER(tomcat_320bio_r)
{
dsp_BIO = 1;
cpu_suspend(space->machine->cpu[0], SUSPEND_REASON_SPIN, 1);
return 0;
}
static READ16_HANDLER(dsp_BIO_r)
{
if ( cpu_get_pc(space->cpu) == 0x0001 )
{
if ( dsp_idle == 0 )
{
dsp_idle = 1;
dsp_BIO = 0;
}
return !dsp_BIO;
}
else if ( cpu_get_pc(space->cpu) == 0x0003 )
{
if ( dsp_BIO == 1 )
{
dsp_idle = 0;
dsp_BIO = 0;
cpu_resume(space->machine->cpu[0], SUSPEND_REASON_SPIN );
return 0;
}
else
{
assert(0);
return 0;
}
}
else
{
return !dsp_BIO;
}
}
static READ16_HANDLER(tomcat_shared_ram_r)
{
return tomcat_shared_ram[offset];
}
static WRITE16_HANDLER(tomcat_shared_ram_w)
{
COMBINE_DATA(&tomcat_shared_ram[offset]);
}
static READ8_HANDLER(tomcat_nvram_r)
{
return tomcat_nvram[offset];
}
static WRITE8_HANDLER(tomcat_nvram_w)
{
tomcat_nvram[offset] = data;
}
static ADDRESS_MAP_START( tomcat_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x00ffff) AM_ROM
AM_RANGE(0x402000, 0x402001) AM_READ(tomcat_adcread_r) AM_WRITE(tomcat_adcon_w)
AM_RANGE(0x404000, 0x404001) AM_READ(tomcat_inputs_r) AM_WRITE(avgdvg_go_word_w)
AM_RANGE(0x406000, 0x406001) AM_WRITE(avgdvg_reset_word_w)
AM_RANGE(0x408000, 0x408001) AM_READWRITE(tomcat_inputs2_r, watchdog_reset16_w)
AM_RANGE(0x40a000, 0x40a001) AM_READWRITE(tomcat_320bio_r, tomcat_irqclr_w)
AM_RANGE(0x40e000, 0x40e001) AM_WRITE(tomcat_led1on_w)
AM_RANGE(0x40e002, 0x40e003) AM_WRITE(tomcat_led2on_w)
AM_RANGE(0x40e004, 0x40e005) AM_WRITE(tomcat_mresl_w)
AM_RANGE(0x40e006, 0x40e007) AM_WRITE(tomcat_sndresl_w)
AM_RANGE(0x40e008, 0x40e009) AM_WRITE(tomcat_lnkmodel_w)
AM_RANGE(0x40e00a, 0x40e00b) AM_WRITE(tomcat_errl_w)
AM_RANGE(0x40e00c, 0x40e00d) AM_WRITE(tomcat_ackl_w)
AM_RANGE(0x40e00e, 0x40e00f) AM_WRITE(tomcat_txbuffl_w)
AM_RANGE(0x40e010, 0x40e011) AM_WRITE(tomcat_led1off_w)
AM_RANGE(0x40e012, 0x40e013) AM_WRITE(tomcat_led2off_w)
AM_RANGE(0x40e014, 0x40e015) AM_WRITE(tomcat_mresh_w)
AM_RANGE(0x40e016, 0x40e017) AM_WRITE(tomcat_sndresh_w)
AM_RANGE(0x40e018, 0x40e019) AM_WRITE(tomcat_lnkmodeh_w)
AM_RANGE(0x40e01a, 0x40e01b) AM_WRITE(tomcat_errh_w)
AM_RANGE(0x40e01c, 0x40e01d) AM_WRITE(tomcat_ackh_w)
AM_RANGE(0x40e01e, 0x40e01f) AM_WRITE(tomcat_txbuffh_w)
AM_RANGE(0x800000, 0x803fff) AM_RAM AM_BASE((UINT16**)&vectorram) AM_SIZE(&vectorram_size)
AM_RANGE(0xffa000, 0xffbfff) AM_READWRITE(tomcat_shared_ram_r, tomcat_shared_ram_w)
AM_RANGE(0xffc000, 0xffcfff) AM_RAM
AM_RANGE(0xffd000, 0xffdfff) AM_DEVREADWRITE8("m48t02", timekeeper_r, timekeeper_w, 0xff00)
AM_RANGE(0xffd000, 0xffdfff) AM_READWRITE8(tomcat_nvram_r, tomcat_nvram_w, 0x00ff)
ADDRESS_MAP_END
static ADDRESS_MAP_START( dsp_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x0000, 0x1fff) AM_RAM AM_BASE(&tomcat_shared_ram)
ADDRESS_MAP_END
static ADDRESS_MAP_START( dsp_io_map, ADDRESS_SPACE_IO, 16 )
AM_RANGE(TMS32010_BIO, TMS32010_BIO) AM_READ(dsp_BIO_r)
ADDRESS_MAP_END
static WRITE8_HANDLER(soundlatches_w)
{
switch(offset)
{
case 0x00: break; // XLOAD 0 Write the Sequential ROM counter Low Byte
case 0x20: break; // XLOAD 1 Write the Sequential ROM counter High Byte
case 0x40: break; // SOUNDWR Write to Sound Interface Latch (read by Main)
case 0x60: break; // unused
case 0x80: break; // XREAD Read the Sequential ROM (64K bytes) and increment the counter
case 0xa0: break; // unused
case 0xc0: break; // SOUNDREAD Read the Sound Interface Latch (written by Main)
}
}
static ADDRESS_MAP_START( sound_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_RAM
AM_RANGE(0x2000, 0x2001) AM_DEVREADWRITE("ym", ym2151_r, ym2151_w)
AM_RANGE(0x3000, 0x30df) AM_WRITE(soundlatches_w)
AM_RANGE(0x30e0, 0x30e0) AM_NOP // COINRD Inputs: D7 = Coin L, D6 = Coin R, D5 = SOUNDFLAG
AM_RANGE(0x5000, 0x507f) AM_RAM // 6532 ram
AM_RANGE(0x5080, 0x509f) AM_DEVREADWRITE("riot", riot6532_r, riot6532_w)
AM_RANGE(0x6000, 0x601f) AM_DEVREADWRITE("pokey1", pokey_r, pokey_w)
AM_RANGE(0x7000, 0x701f) AM_DEVREADWRITE("pokey2", pokey_r, pokey_w)
AM_RANGE(0x8000, 0xffff) AM_NOP // main sound program rom
ADDRESS_MAP_END
static INPUT_PORTS_START( tomcat )
PORT_START("IN0") /* INPUTS */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(avgdvg_done_r, NULL)
PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) // SPARE
PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON5 ) // DIAGNOSTIC
PORT_SERVICE( 0x08, IP_ACTIVE_LOW )
PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) // R FIRE
PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) // L FIRE
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON4 ) // R THUMB
PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON3 ) // L THUMB
PORT_START("STICKY")
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_Y ) PORT_SENSITIVITY(70) PORT_KEYDELTA(30)
PORT_START("STICKX")
PORT_BIT( 0xff, 0x80, IPT_AD_STICK_X ) PORT_SENSITIVITY(50) PORT_KEYDELTA(30)
INPUT_PORTS_END
ROM_START( tomcat )
ROM_REGION( 0x10000, "maincpu", 0)
ROM_LOAD16_BYTE( "rom1k.bin", 0x00001, 0x8000, CRC(5535a1ff) SHA1(b9807c749a8e6b5ddec3ff494130abda09f0baab) )
ROM_LOAD16_BYTE( "rom2k.bin", 0x00000, 0x8000, CRC(021a01d2) SHA1(01d99aab54ad57a664e8aaa91296bb879fc6e422) )
ROM_REGION( 0x100, "user1", 0 )
ROM_LOAD( "136021-105.1l", 0x0000, 0x0100, CRC(82fc3eb2) SHA1(184231c7baef598294860a7d2b8a23798c5c7da6) ) /* AVG PROM */
ROM_END
static MACHINE_START(tomcat)
{
((UINT16*)tomcat_shared_ram)[0x0000] = 0xf600;
((UINT16*)tomcat_shared_ram)[0x0001] = 0x0000;
((UINT16*)tomcat_shared_ram)[0x0002] = 0xf600;
((UINT16*)tomcat_shared_ram)[0x0003] = 0x0000;
tomcat_nvram = auto_malloc(0x800);
state_save_register_global_pointer(machine, tomcat_nvram, 0x800);
state_save_register_global(machine, tomcat_control_num);
state_save_register_global(machine, dsp_BIO);
state_save_register_global(machine, dsp_idle);
dsp_BIO = 0;
}
static NVRAM_HANDLER(tomcat)
{
if (read_or_write)
mame_fwrite(file, tomcat_nvram, 0x800);
else
if (file)
mame_fread(file, tomcat_nvram, 0x800);
else
memset(tomcat_nvram, 0x00, 0x800);
}
static const riot6532_interface tomcat_riot6532_intf =
{
NULL,
/*
PA0 = /WS OUTPUT (TMS-5220 WRITE STROBE)
PA1 = /RS OUTPUT (TMS-5220 READ STROBE)
PA2 = /READY INPUT (TMS-5220 READY FLAG)
PA3 = FSEL OUTPUT Select TMS5220 clock;
0 = 325 KHz (8 KHz sampling)
1 = 398 KHz (10 KHz sampling)
PA4 = /CC1 OUTPUT Coin Counter 1
PA5 = /CC2 OUTPUT Coin Counter 2
PA6 = /MUSRES OUTPUT (Reset the Yamaha)
PA7 = MAINFLAG INPUT
*/
NULL,
NULL,
NULL, // PB0 - PB7 OUTPUT Speech Data
NULL // connected to IRQ line of 6502
};
static MACHINE_DRIVER_START(tomcat)
MDRV_CPU_ADD("maincpu", M68010, XTAL_12MHz / 2)
MDRV_CPU_PROGRAM_MAP(tomcat_map, 0)
MDRV_CPU_VBLANK_INT_HACK(irq1_line_assert, 5)
//MDRV_CPU_PERIODIC_INT(irq1_line_assert, (double)XTAL_12MHz / 16 / 16 / 16 / 12)
MDRV_CPU_ADD("dsp", TMS32010, XTAL_16MHz)
MDRV_CPU_PROGRAM_MAP( dsp_map, 0 )
MDRV_CPU_IO_MAP( dsp_io_map, 0 )
MDRV_CPU_ADD("soundcpu", M6502, XTAL_14_31818MHz / 8 )
MDRV_CPU_FLAGS( CPU_DISABLE )
MDRV_CPU_PROGRAM_MAP( sound_map, 0 )
MDRV_RIOT6532_ADD("riot", XTAL_14_31818MHz / 8, tomcat_riot6532_intf)
MDRV_QUANTUM_TIME(HZ(4000))
MDRV_MACHINE_START(tomcat)
MDRV_NVRAM_HANDLER(tomcat)
MDRV_M48T02_ADD( "m48t02" )
MDRV_SCREEN_ADD("screen", VECTOR)
MDRV_SCREEN_REFRESH_RATE(40)
//MDRV_SCREEN_REFRESH_RATE((double)XTAL_12MHz / 16 / 16 / 16 / 12 / 5 )
MDRV_SCREEN_SIZE(400, 300)
MDRV_SCREEN_VISIBLE_AREA(0, 280, 0, 250)
MDRV_VIDEO_START(avg_tomcat)
MDRV_VIDEO_UPDATE(vector)
MDRV_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MDRV_SOUND_ADD("pokey1", POKEY, XTAL_14_31818MHz / 8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.20)
MDRV_SOUND_ADD("pokey2", POKEY, XTAL_14_31818MHz / 8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.20)
MDRV_SOUND_ADD("tms", TMS5220, 325000)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50)
MDRV_SOUND_ADD("ym", YM2151, XTAL_14_31818MHz / 4)
MDRV_SOUND_ROUTE(0, "lspeaker", 0.60)
MDRV_SOUND_ROUTE(1, "rspeaker", 0.60)
MACHINE_DRIVER_END
GAME( 1985, tomcat, 0, tomcat, tomcat, 0, ROT0, "Atari", "TomCat (prototype)", GAME_SUPPORTS_SAVE )