/***************************************************************************
Atari Tetris hardware
driver by Zsolt Vasvari
Games supported:
* Tetris
Known bugs:
* none at this time
****************************************************************************
Memory map
****************************************************************************
========================================================================
CPU #1
========================================================================
0000-0FFF R/W xxxxxxxx Program RAM
1000-1FFF R/W xxxxxxxx Playfield RAM
xxxxxxxx (byte 0: LSB of character code)
-----xxx (byte 1: MSB of character code)
xxxx---- (byte 1: palette index)
2000-20FF R/W xxxxxxxx Palette RAM
xxx---- (red component)
---xxx-- (green component)
------xx (blue component)
2400-25FF R/W xxxxxxxx EEPROM
2800-280F R/W xxxxxxxx POKEY #1
2810-281F R/W xxxxxxxx POKEY #2
3000 W -------- Watchdog
3400 W -------- EEPROM write enable
3800 W -------- IRQ acknowledge
3C00 W --xx---- Coin counters
W --x----- (right coin counter)
W ---x---- (left coin counter)
4000-7FFF R xxxxxxxx Banked program ROM
8000-FFFF R xxxxxxxx Program ROM
========================================================================
Interrupts:
IRQ generated by 32V
========================================================================
***************************************************************************/
#include "driver.h"
#include "cpu/m6502/m6502.h"
#include "slapstic.h"
#include "atetris.h"
#include "sound/sn76496.h"
#include "sound/pokey.h"
#define ATARI_CLOCK_14MHz 14318180
/* Local variables */
static UINT8 *slapstic_source;
static UINT8 *slapstic_base;
static UINT8 current_bank;
static UINT8 nvram_write_enable;
/*************************************
*
* Interrupt generation
*
*************************************/
static TIMER_CALLBACK( interrupt_gen )
{
int scanline = param;
/* assert/deassert the interrupt */
cpunum_set_input_line(0, 0, (scanline & 32) ? ASSERT_LINE : CLEAR_LINE);
/* set the next timer */
scanline += 32;
if (scanline >= 256)
scanline -= 256;
timer_set(video_screen_get_time_until_pos(0, scanline, 0), scanline, interrupt_gen);
}
static WRITE8_HANDLER( irq_ack_w )
{
cpunum_set_input_line(0, 0, CLEAR_LINE);
}
/*************************************
*
* Machine init
*
*************************************/
static MACHINE_RESET( atetris )
{
/* reset the slapstic */
slapstic_reset();
current_bank = slapstic_bank() & 1;
memcpy(slapstic_base, &slapstic_source[current_bank * 0x4000], 0x4000);
/* start interrupts going (32V clocked by 16V) */
timer_set(video_screen_get_time_until_pos(0, 48, 0), 48, interrupt_gen);
}
/*************************************
*
* Slapstic handler
*
*************************************/
static READ8_HANDLER( atetris_slapstic_r )
{
int result = slapstic_base[0x2000 + offset];
int new_bank = slapstic_tweak(offset) & 1;
/* update for the new bank */
if (new_bank != current_bank)
{
current_bank = new_bank;
memcpy(slapstic_base, &slapstic_source[current_bank * 0x4000], 0x4000);
}
return result;
}
/*************************************
*
* Coin counters
*
*************************************/
static WRITE8_HANDLER( coincount_w )
{
coin_counter_w(0, (data >> 5) & 1);
coin_counter_w(1, (data >> 4) & 1);
}
/*************************************
*
* NVRAM handlers
*
*************************************/
static WRITE8_HANDLER( nvram_w )
{
if (nvram_write_enable)
generic_nvram[offset] = data;
nvram_write_enable = 0;
}
static WRITE8_HANDLER( nvram_enable_w )
{
nvram_write_enable = 1;
}
/*************************************
*
* Main CPU memory handlers
*
*************************************/
static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x0fff) AM_RAM
AM_RANGE(0x1000, 0x1fff) AM_READWRITE(MRA8_RAM, atetris_videoram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x2000, 0x20ff) AM_READWRITE(MRA8_RAM, paletteram_RRRGGGBB_w) AM_BASE(&paletteram)
AM_RANGE(0x2400, 0x25ff) AM_READWRITE(MRA8_RAM, nvram_w) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size)
AM_RANGE(0x2800, 0x280f) AM_READWRITE(pokey1_r, pokey1_w)
AM_RANGE(0x2810, 0x281f) AM_READWRITE(pokey2_r, pokey2_w)
AM_RANGE(0x3000, 0x3000) AM_WRITE(watchdog_reset_w)
AM_RANGE(0x3400, 0x3400) AM_WRITE(nvram_enable_w)
AM_RANGE(0x3800, 0x3800) AM_WRITE(irq_ack_w)
AM_RANGE(0x3c00, 0x3c00) AM_WRITE(coincount_w)
AM_RANGE(0x4000, 0x5fff) AM_ROM
AM_RANGE(0x6000, 0x7fff) AM_READ(atetris_slapstic_r)
AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( atetrsb2_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x0fff) AM_RAM
AM_RANGE(0x1000, 0x1fff) AM_READWRITE(MRA8_RAM, atetris_videoram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x2000, 0x20ff) AM_READWRITE(MRA8_RAM, paletteram_RRRGGGBB_w) AM_BASE(&paletteram)
AM_RANGE(0x2400, 0x25ff) AM_READWRITE(MRA8_RAM, nvram_w) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size)
AM_RANGE(0x2802, 0x2802) AM_WRITE(SN76496_0_w)
AM_RANGE(0x2804, 0x2804) AM_WRITE(SN76496_1_w)
AM_RANGE(0x2806, 0x2806) AM_WRITE(SN76496_2_w)
AM_RANGE(0x2808, 0x2808) AM_READ(input_port_0_r) /* IN0 */
AM_RANGE(0x2818, 0x2818) AM_READ(input_port_1_r) /* IN1 */
AM_RANGE(0x3000, 0x3000) AM_WRITE(watchdog_reset_w)
AM_RANGE(0x3400, 0x3400) AM_WRITE(nvram_enable_w)
AM_RANGE(0x3800, 0x3800) AM_WRITE(irq_ack_w)
AM_RANGE(0x3c00, 0x3c00) AM_WRITE(coincount_w)
AM_RANGE(0x4000, 0x5fff) AM_ROM
AM_RANGE(0x6000, 0x7fff) AM_READ(atetris_slapstic_r)
AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
/*************************************
*
* Port definitions
*
*************************************/
static INPUT_PORTS_START( atetris )
// These ports are read via the Pokeys
PORT_START /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_DIPNAME( 0x04, 0x00, "Freeze" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x04, DEF_STR( On ) )
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_SERVICE ) PORT_NAME("Freeze Step") PORT_CODE(KEYCODE_F1)
PORT_BIT( 0x30, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_VBLANK )
PORT_SERVICE( 0x80, IP_ACTIVE_HIGH )
PORT_START /* IN1 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(1)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(1)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_4WAY PORT_PLAYER(2)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_4WAY PORT_PLAYER(2)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_4WAY PORT_PLAYER(2)
INPUT_PORTS_END
// Same as the regular one except they added a Flip Controls switch
static INPUT_PORTS_START( atetcktl )
// These ports are read via the Pokeys
PORT_START /* IN0 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN2 )
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN1 )
PORT_DIPNAME( 0x04, 0x00, "Freeze" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x04, DEF_STR( On ) )
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_SERVICE ) PORT_NAME("Freeze Step") PORT_CODE(KEYCODE_F1)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED )
PORT_DIPNAME( 0x20, 0x00, "Flip Controls" )
PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
PORT_DIPSETTING( 0x20, DEF_STR( On ) )
PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_VBLANK )
PORT_SERVICE( 0x80, IP_ACTIVE_HIGH )
PORT_START /* IN1 */
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(1)
PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(1)
PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(1)
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(1)
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_BUTTON1) PORT_PLAYER(2)
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_PLAYER(2)
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_PLAYER(2)
INPUT_PORTS_END
/*************************************
*
* Graphics layouts
*
*************************************/
static const gfx_layout charlayout =
{
8,8,
RGN_FRAC(1,1),
4,
{ 0,1,2,3 },
{ 0*4, 1*4, 2*4, 3*4, 4*4, 5*4, 6*4, 7*4},
{ 0*4*8, 1*4*8, 2*4*8, 3*4*8, 4*4*8, 5*4*8, 6*4*8, 7*4*8},
8*8*4
};
static GFXDECODE_START( atetris )
GFXDECODE_ENTRY( REGION_GFX1, 0, charlayout, 0, 16 )
GFXDECODE_END
/*************************************
*
* Sound definitions
*
*************************************/
static struct POKEYinterface pokey_interface_1 =
{
{ 0 },
input_port_0_r
};
static struct POKEYinterface pokey_interface_2 =
{
{ 0 },
input_port_1_r
};
/*************************************
*
* Machine driver
*
*************************************/
static MACHINE_DRIVER_START( atetris )
/* basic machine hardware */
MDRV_CPU_ADD(M6502,ATARI_CLOCK_14MHz/8)
MDRV_CPU_PROGRAM_MAP(main_map,0)
MDRV_MACHINE_RESET(atetris)
MDRV_NVRAM_HANDLER(generic_1fill)
/* video hardware */
MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
MDRV_GFXDECODE(atetris)
MDRV_PALETTE_LENGTH(256)
MDRV_SCREEN_ADD("main", 0)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
/* note: these parameters are from published specs, not derived */
/* the board uses an SOS-2 chip to generate video signals */
MDRV_SCREEN_RAW_PARAMS(ATARI_CLOCK_14MHz/2, 456, 0, 336, 262, 0, 240)
MDRV_VIDEO_START(atetris)
MDRV_VIDEO_UPDATE(atetris)
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD(POKEY, ATARI_CLOCK_14MHz/8)
MDRV_SOUND_CONFIG(pokey_interface_1)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD(POKEY, ATARI_CLOCK_14MHz/8)
MDRV_SOUND_CONFIG(pokey_interface_2)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END
static MACHINE_DRIVER_START( atetrsb2 )
/* basic machine hardware */
MDRV_CPU_ADD(M6502,14745600/8)
MDRV_CPU_PROGRAM_MAP(atetrsb2_map,0)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_MACHINE_RESET(atetris)
MDRV_NVRAM_HANDLER(generic_1fill)
/* video hardware */
MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
MDRV_GFXDECODE(atetris)
MDRV_PALETTE_LENGTH(256)
MDRV_SCREEN_ADD("main", 0)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
/* note: these parameters are from published specs, not derived */
/* the board uses an SOS-2 chip to generate video signals */
MDRV_SCREEN_RAW_PARAMS(ATARI_CLOCK_14MHz/2, 456, 0, 336, 262, 0, 240)
MDRV_VIDEO_START(atetris)
MDRV_VIDEO_UPDATE(atetris)
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD(SN76496, 14745600/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD(SN76496, 14745600/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD(SN76496, 14745600/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END
/*************************************
*
* ROM definitions
*
*************************************/
ROM_START( atetris )
ROM_REGION( 0x18000, REGION_CPU1, 0 )
ROM_LOAD( "136066-1100.45f", 0x10000, 0x8000, CRC(2acbdb09) SHA1(5e1189227f26563fd3e5372121ea5c915620f892) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_REGION( 0x10000, REGION_GFX1, ROMREGION_DISPOSE )
ROM_LOAD( "136066-1101.35a", 0x0000, 0x10000, CRC(84a1939f) SHA1(d8577985fc8ed4e74f74c68b7c00c4855b7c3270) )
ROM_END
ROM_START( atetrisa )
ROM_REGION( 0x18000, REGION_CPU1, 0 )
ROM_LOAD( "d1", 0x10000, 0x8000, CRC(2bcab107) SHA1(3cfb8df8cd3782f3ff7f6b32ff15c461352061ee) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_REGION( 0x10000, REGION_GFX1, ROMREGION_DISPOSE )
ROM_LOAD( "136066-1101.35a", 0x0000, 0x10000, CRC(84a1939f) SHA1(d8577985fc8ed4e74f74c68b7c00c4855b7c3270) )
ROM_END
ROM_START( atetrisb )
ROM_REGION( 0x18000, REGION_CPU1, 0 )
ROM_LOAD( "tetris.01", 0x10000, 0x8000, CRC(944d15f6) SHA1(926fa5cb26b6e6a50bea455eec1f6d3fb92aa95c) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_REGION( 0x10000, REGION_GFX1, ROMREGION_DISPOSE )
ROM_LOAD( "tetris.02", 0x0000, 0x10000, CRC(5c4e7258) SHA1(58060681a728e74d69b2b6f5d02faa597ca6c226) )
/* there's an extra EEPROM, maybe used for protection crack, which */
/* however doesn't seem to be required to run the game in this driver. */
ROM_REGION( 0x0800, REGION_USER1, 0 )
ROM_LOAD( "tetris.03", 0x0000, 0x0800, CRC(26618c0b) SHA1(4d6470bf3a79be3b0766e246abe00582d4c85a97) )
ROM_END
ROM_START( atetrsb2 )
ROM_REGION( 0x18000, REGION_CPU1, 0 )
ROM_LOAD( "k1-01", 0x10000, 0x8000, CRC(fa056809) SHA1(e4ccccdf9b04b68127c7b03ae263519cf00f94cb) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_REGION( 0x10000, REGION_GFX1, ROMREGION_DISPOSE )
ROM_LOAD( "136066-1101.35a", 0x0000, 0x10000, CRC(84a1939f) SHA1(d8577985fc8ed4e74f74c68b7c00c4855b7c3270) )
ROM_END
ROM_START( atetcktl )
ROM_REGION( 0x18000, REGION_CPU1, 0 )
ROM_LOAD( "tetcktl1.rom", 0x10000, 0x8000, CRC(9afd1f4a) SHA1(323d1576d92c905e8e95108b39cabf6fa0c10db6) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_REGION( 0x10000, REGION_GFX1, ROMREGION_DISPOSE )
ROM_LOAD( "136066-1103.35a", 0x0000, 0x10000, CRC(ec2a7f93) SHA1(cb850141ffd1504f940fa156a39e71a4146d7fea) )
ROM_END
ROM_START( atetckt2 )
ROM_REGION( 0x18000, REGION_CPU1, 0 )
ROM_LOAD( "136066-1102.45f", 0x10000, 0x8000, CRC(1bd28902) SHA1(ae8c34f082bce1f827bf60830f207c46cb282421) )
ROM_CONTINUE( 0x08000, 0x8000 )
ROM_REGION( 0x10000, REGION_GFX1, ROMREGION_DISPOSE )
ROM_LOAD( "136066-1103.35a", 0x0000, 0x10000, CRC(ec2a7f93) SHA1(cb850141ffd1504f940fa156a39e71a4146d7fea) )
ROM_END
/*************************************
*
* Driver init
*
*************************************/
static DRIVER_INIT( atetris )
{
slapstic_init(101);
slapstic_source = &memory_region(REGION_CPU1)[0x10000];
slapstic_base = &memory_region(REGION_CPU1)[0x04000];
}
/*************************************
*
* Game drivers
*
*************************************/
GAME( 1988, atetris, 0, atetris, atetris, atetris, ROT0, "Atari Games", "Tetris (set 1)", 0 )
GAME( 1988, atetrisa, atetris, atetris, atetris, atetris, ROT0, "Atari Games", "Tetris (set 2)", 0 )
GAME( 1988, atetrisb, atetris, atetris, atetris, atetris, ROT0, "bootleg", "Tetris (bootleg set 1)", 0 )
GAME( 1988, atetrsb2, atetris, atetrsb2, atetris, atetris, ROT0, "bootleg", "Tetris (bootleg set 2)", 0 )
GAME( 1989, atetcktl, atetris, atetris, atetcktl, atetris, ROT270, "Atari Games", "Tetris (Cocktail set 1)", 0 )
GAME( 1989, atetckt2, atetris, atetris, atetcktl, atetris, ROT270, "Atari Games", "Tetris (Cocktail set 2)", 0 )