diff options
Diffstat (limited to 'src/mame/drivers/sbrkout.c')
-rw-r--r-- | src/mame/drivers/sbrkout.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/src/mame/drivers/sbrkout.c b/src/mame/drivers/sbrkout.c new file mode 100644 index 00000000000..396094bce99 --- /dev/null +++ b/src/mame/drivers/sbrkout.c @@ -0,0 +1,329 @@ +/*************************************************************************** + + Atari Super Breakout hardware + + driver by Mike Balfour + + Games supported: + * Super Breakout + + Known issues: + * none at this time + +**************************************************************************** + + Note: I'm cheating a little bit with the paddle control. The original + game handles the paddle control as following. The paddle is a potentiometer. + Every VBlank signal triggers the start of a voltage ramp. Whenever the + ramp has the same value as the potentiometer, an NMI is generated. In the + NMI code, the current scanline value is used to calculate the value to + put into location $1F in memory. I cheat in this driver by just putting + the paddle value directly into $1F, which has the same net result. + + If you have any questions about how this driver works, don't hesitate to + ask. - Mike Balfour (mab22@po.cwru.edu) + + CHANGES: + MAB 05 MAR 99 - changed overlay support to use artwork functions + + +Stephh's notes (based on the games M6502 code and some tests) : + + - Each time the game is reset, it is set to "Cavity". + I can't remember if it's the correct behaviour or not, + but the VBLANK interruption is not called in "demo mode". + - You can only select the game after 1st coin is inserted + and before you press BUTTON1 to launch the first ball, + then the VBLANK interruption is no more called. + This means that player 2 plays the same game as player 1. + +***************************************************************************/ + +#include "driver.h" +#include "sound/dac.h" +#include "includes/sbrkout.h" + +#include "sbrkout.lh" + + +/************************************* + * + * Temporary sound hardware + * + *************************************/ + +#define TIME_4V ATTOTIME_IN_SEC(4075000/4) + +static UINT8 *sbrkout_sound; + +static WRITE8_HANDLER( sbrkout_dac_w ) +{ + sbrkout_sound[offset]=data; +} + + +static TIMER_CALLBACK( sbrkout_tones_4V ) +{ + static int vlines=0; + + if ((*sbrkout_sound) & vlines) + DAC_data_w(0,255); + else + DAC_data_w(0,0); + + vlines = (vlines+1) % 16; +} + + +static MACHINE_RESET( sbrkout ) +{ + timer_pulse(TIME_4V, 0, sbrkout_tones_4V); +} + + +/************************************* + * + * Palette generation + * + *************************************/ + +static PALETTE_INIT( sbrkout ) +{ + palette_set_color(machine,0,MAKE_RGB(0x00,0x00,0x00)); + palette_set_color(machine,1,MAKE_RGB(0xff,0xff,0xff)); +} + + + +/************************************* + * + * Main CPU memory handlers + * + *************************************/ + +static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x001f, 0x001f) AM_READ(input_port_6_r) /* paddle value */ + AM_RANGE(0x0000, 0x00ff) AM_READ(MRA8_RAM) /* Zero Page RAM */ + AM_RANGE(0x0100, 0x01ff) AM_READ(MRA8_RAM) /* ??? */ + AM_RANGE(0x0400, 0x077f) AM_READ(MRA8_RAM) /* Video Display RAM */ + AM_RANGE(0x0828, 0x0828) AM_READ(sbrkout_select1_r) /* Select 1 */ + AM_RANGE(0x082f, 0x082f) AM_READ(sbrkout_select2_r) /* Select 2 */ + AM_RANGE(0x082e, 0x082e) AM_READ(input_port_5_r) /* Serve Switch */ + AM_RANGE(0x0830, 0x0833) AM_READ(sbrkout_read_DIPs_r) /* DIP Switches */ + AM_RANGE(0x0840, 0x0840) AM_READ(input_port_1_r) /* Coin Switches */ + AM_RANGE(0x0880, 0x0880) AM_READ(input_port_2_r) /* Start Switches */ + AM_RANGE(0x08c0, 0x08c0) AM_READ(input_port_3_r) /* Self Test Switch */ + AM_RANGE(0x0c00, 0x0c00) AM_READ(input_port_4_r) /* Vertical Sync Counter */ + AM_RANGE(0x2c00, 0x3fff) AM_READ(MRA8_ROM) /* PROGRAM */ + AM_RANGE(0xfff0, 0xffff) AM_READ(MRA8_ROM) /* PROM8 for 6502 vectors */ +ADDRESS_MAP_END + + +static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0011, 0x0011) AM_WRITE(sbrkout_dac_w) AM_BASE(&sbrkout_sound) /* Noise Generation Bits */ + AM_RANGE(0x0010, 0x0014) AM_WRITE(MWA8_RAM) AM_BASE(&sbrkout_horiz_ram) /* Horizontal Ball Position */ + AM_RANGE(0x0018, 0x001d) AM_WRITE(MWA8_RAM) AM_BASE(&sbrkout_vert_ram) /* Vertical Ball Position / ball picture */ + AM_RANGE(0x0000, 0x00ff) AM_WRITE(MWA8_RAM) /* WRAM */ + AM_RANGE(0x0100, 0x01ff) AM_WRITE(MWA8_RAM) /* ??? */ + AM_RANGE(0x0400, 0x07ff) AM_WRITE(sbrkout_videoram_w) AM_BASE(&videoram) /* DISPLAY */ + AM_RANGE(0x0c10, 0x0c11) AM_WRITE(sbrkout_serve_led_w) /* Serve LED */ + AM_RANGE(0x0c30, 0x0c31) AM_WRITE(sbrkout_start_1_led_w) /* 1 Player Start Light */ + AM_RANGE(0x0c40, 0x0c41) AM_WRITE(sbrkout_start_2_led_w) /* 2 Player Start Light */ + AM_RANGE(0x0c50, 0x0c51) AM_WRITE(MWA8_RAM) /* NMI Pot Reading Enable */ + AM_RANGE(0x0c70, 0x0c71) AM_WRITE(MWA8_RAM) /* Coin Counter */ + AM_RANGE(0x0c80, 0x0c80) AM_WRITE(MWA8_NOP) /* Watchdog */ + AM_RANGE(0x0e00, 0x0e00) AM_WRITE(MWA8_NOP) /* IRQ Enable? */ + AM_RANGE(0x1000, 0x1000) AM_WRITE(MWA8_RAM) /* LSB of Pot Reading */ + AM_RANGE(0x2c00, 0x3fff) AM_WRITE(MWA8_ROM) /* PROM1-PROM8 */ +ADDRESS_MAP_END + + + +/************************************* + * + * Port definitions + * + *************************************/ + +static INPUT_PORTS_START( sbrkout ) + PORT_START /* DSW - fake port, gets mapped to Super Breakout ports */ + PORT_DIPNAME( 0x03, 0x00, DEF_STR( Language ) ) + PORT_DIPSETTING( 0x00, DEF_STR( English ) ) + PORT_DIPSETTING( 0x01, DEF_STR( German ) ) + PORT_DIPSETTING( 0x02, DEF_STR( French ) ) + PORT_DIPSETTING( 0x03, DEF_STR( Spanish ) ) + PORT_DIPNAME( 0x0C, 0x08, DEF_STR( Coinage ) ) + PORT_DIPSETTING( 0x0C, DEF_STR( 2C_1C ) ) + PORT_DIPSETTING( 0x08, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) ) + PORT_DIPNAME( 0x70, 0x00, "Extended Play" ) + /* Progressive */ + PORT_DIPSETTING( 0x10, "200" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + PORT_DIPSETTING( 0x20, "400" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + PORT_DIPSETTING( 0x30, "600" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + PORT_DIPSETTING( 0x40, "900" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + PORT_DIPSETTING( 0x50, "1200" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + PORT_DIPSETTING( 0x60, "1600" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + PORT_DIPSETTING( 0x70, "2000" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x01) + /* Double */ + PORT_DIPSETTING( 0x10, "200" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + PORT_DIPSETTING( 0x20, "400" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + PORT_DIPSETTING( 0x30, "600" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + PORT_DIPSETTING( 0x40, "800" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + PORT_DIPSETTING( 0x50, "1000" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + PORT_DIPSETTING( 0x60, "1200" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + PORT_DIPSETTING( 0x70, "1500" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x02) + /* Cavity */ + PORT_DIPSETTING( 0x10, "200" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x20, "300" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x30, "400" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x40, "700" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x50, "900" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x60, "1100" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x70, "1400" ) PORT_CONDITION("SELECT",0x07,PORTCOND_EQUALS,0x04) + PORT_DIPSETTING( 0x00, DEF_STR( None ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Lives ) ) + PORT_DIPSETTING( 0x80, "3" ) + PORT_DIPSETTING( 0x00, "5" ) + + PORT_START /* IN0 */ + PORT_BIT ( 0x40, IP_ACTIVE_HIGH, IPT_COIN1 ) + PORT_BIT ( 0x80, IP_ACTIVE_HIGH, IPT_COIN2 ) + + PORT_START /* IN1 */ + PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_START2 ) + + PORT_START /* IN2 */ + PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_TILT ) + PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) + + PORT_START /* IN3 */ + PORT_BIT ( 0xFF, IP_ACTIVE_LOW, IPT_VBLANK ) + + PORT_START /* IN4 */ + PORT_BIT ( 0x80, IP_ACTIVE_HIGH, IPT_BUTTON1 ) + + PORT_START /* IN5 */ + PORT_BIT( 0xff, 0x00, IPT_PADDLE ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_CENTERDELTA(0) PORT_REVERSE + + PORT_START_TAG("SELECT") /* IN6 - fake port, used to set the game select dial */ + PORT_CONFNAME( 0x07, 0x01, "Game Select" ) + PORT_CONFSETTING( 0x01, "Progressive" ) + PORT_CONFSETTING( 0x02, "Double" ) + PORT_CONFSETTING( 0x04, "Cavity" ) +INPUT_PORTS_END + + + +/************************************* + * + * Graphics definitions + * + *************************************/ + +static const gfx_layout charlayout = +{ + 8,8, + 64, + 1, + { 0 }, + { 4, 5, 6, 7, 0x200*8 + 4, 0x200*8 + 5, 0x200*8 + 6, 0x200*8 + 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 8*8 +}; + + +static const gfx_layout balllayout = +{ + 3,3, + 2, + 1, + { 0 }, + { 0, 1, 2 }, + { 0*8, 1*8, 2*8 }, + 3*8 +}; + + +static GFXDECODE_START( sbrkout ) + GFXDECODE_ENTRY( REGION_GFX1, 0, charlayout, 0, 1 ) + GFXDECODE_ENTRY( REGION_GFX2, 0, balllayout, 0, 1 ) +GFXDECODE_END + + + +/************************************* + * + * Machine driver + * + *************************************/ + +static MACHINE_DRIVER_START( sbrkout ) + + /* basic machine hardware */ + MDRV_CPU_ADD(M6502,375000) /* 375 KHz? Should be 750KHz? */ + MDRV_CPU_PROGRAM_MAP(readmem,writemem) + MDRV_CPU_VBLANK_INT(sbrkout_interrupt,1) + + MDRV_SCREEN_REFRESH_RATE(60) + MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_60HZ_VBLANK_DURATION) + + MDRV_MACHINE_RESET(sbrkout) + + /* video hardware */ + MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) + MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) + MDRV_SCREEN_SIZE(32*8, 28*8) + MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 28*8-1) + MDRV_GFXDECODE(sbrkout) + MDRV_PALETTE_LENGTH(2) + + MDRV_PALETTE_INIT(sbrkout) + MDRV_VIDEO_START(sbrkout) + MDRV_VIDEO_UPDATE(sbrkout) + + /* sound hardware */ + MDRV_SPEAKER_STANDARD_MONO("mono") + + MDRV_SOUND_ADD(DAC, 0) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) +MACHINE_DRIVER_END + + + +/************************************* + * + * ROM definitions + * + *************************************/ + +ROM_START( sbrkout ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "033453.c1", 0x2800, 0x0800, CRC(a35d00e3) SHA1(53617ed1d362e82d6f45abd66056bffe23300e3b) ) + ROM_LOAD( "033454.d1", 0x3000, 0x0800, CRC(d42ea79a) SHA1(66c9b29226cde36d1ac6d1e81f34ebb5c79eded4) ) + ROM_LOAD( "033455.e1", 0x3800, 0x0800, CRC(e0a6871c) SHA1(1bdfa73d7b8d91e1c68b7847fc310cac314ee02d) ) + ROM_RELOAD( 0xf800, 0x0800 ) + + ROM_REGION( 0x0400, REGION_GFX1, ROMREGION_DISPOSE ) + ROM_LOAD( "033280.p4", 0x0000, 0x0200, CRC(5a69ce85) SHA1(ad9078d12495c350738bdb0b1e1b6120d9e01f60) ) + ROM_LOAD( "033281.r4", 0x0200, 0x0200, CRC(066bd624) SHA1(cfb86c7013a70b8375126b23a4e66df5f3b9186b) ) + + ROM_REGION( 0x0020, REGION_GFX2, ROMREGION_DISPOSE ) + ROM_LOAD( "033282.k6", 0x0000, 0x0020, CRC(6228736b) SHA1(bc176261dba11521df19d545ce604f8cc294287a) ) + + ROM_REGION( 0x0120, REGION_PROMS, 0 ) + ROM_LOAD( "006400.m2", 0x0000, 0x0100, CRC(b8094b4c) SHA1(82dc6799a19984f3b204ee3aeeb007e55afc8be3) ) /* sync (not used) */ + ROM_LOAD( "006401.e2", 0x0100, 0x0020, CRC(857df8db) SHA1(06313d5bde03220b2bc313d18e50e4bb1d0cfbbb) ) /* unknown */ +ROM_END + + + +/************************************* + * + * Game drivers + * + *************************************/ + +GAMEL( 1978, sbrkout, 0, sbrkout, sbrkout, 0, ROT270, "Atari", "Super Breakout", 0, layout_sbrkout ) |