diff options
Diffstat (limited to 'src/mame/drivers/stactics.c')
-rw-r--r-- | src/mame/drivers/stactics.c | 313 |
1 files changed, 313 insertions, 0 deletions
diff --git a/src/mame/drivers/stactics.c b/src/mame/drivers/stactics.c new file mode 100644 index 00000000000..e430f53ea16 --- /dev/null +++ b/src/mame/drivers/stactics.c @@ -0,0 +1,313 @@ +/**************************************************************************** + +Sega "Space Tactics" Driver + +Frank Palazzolo (palazzol@home.com) + +Master processor - Intel 8080A + +Memory Map: + +0000-2fff ROM R +4000-47ff RAM R/W +5000-5fff switches/status R +6000-6fff dips sw R +6000-600f Coin rjct/palette select W +6010-601f sound triggers W +6020-602f lamp latch W +6030-603f speed latch W +6040-605f shot related W +6060-606f score display W +60a0-60e0 sound triggers2 W +7000-7fff RNG/swit R LS Nibble are a VBlank counter + used as a RNG +8000-8fff swit/stat R +8000-8fff offset RAM W +9000-9fff V pos reg. R Reads counter from an encoder wheel +a000-afff H pos reg. R Reads counter from an encoder wheel +b000-bfff VRAM B R/W alphanumerics, bases, barrier, + enemy bombs +d000-dfff VRAM D R/W furthest aliens (scrolling) +e000-efff VRAM E R/W middle aliens (scrolling) +f000-ffff VRAM F R/W closest aliens (scrolling) + +-------------------------------------------------------------------- + +At this time, emulation is missing: + +Lamps (Credit, Barrier, and 5 lamps for firing from the bases) +Sound (all discrete and a 76477) +Verify Color PROM resistor values (Last 8 colors) +Verify Bar graph displays + +****************************************************************************/ + +#include "driver.h" + +/* Defined in machine/stactics.c */ +READ8_HANDLER( stactics_port_0_r ); +READ8_HANDLER( stactics_port_2_r ); +READ8_HANDLER( stactics_port_3_r ); +READ8_HANDLER( stactics_vert_pos_r ); +READ8_HANDLER( stactics_horiz_pos_r ); +INTERRUPT_GEN( stactics_interrupt ); +WRITE8_HANDLER( stactics_coin_lockout_w ); +extern UINT8 *stactics_motor_on; + +/* Defined in video/stactics.c */ +VIDEO_START( stactics ); +VIDEO_UPDATE( stactics ); +extern UINT8 *stactics_scroll_ram; +extern UINT8 *stactics_videoram_b; +extern UINT8 *stactics_chardata_b; +extern UINT8 *stactics_videoram_d; +extern UINT8 *stactics_chardata_d; +extern UINT8 *stactics_videoram_e; +extern UINT8 *stactics_chardata_e; +extern UINT8 *stactics_videoram_f; +extern UINT8 *stactics_chardata_f; +extern UINT8 *stactics_display_buffer; + +PALETTE_INIT( stactics ); + +WRITE8_HANDLER( stactics_palette_w ); +WRITE8_HANDLER( stactics_scroll_ram_w ); +WRITE8_HANDLER( stactics_speed_latch_w ); +WRITE8_HANDLER( stactics_shot_trigger_w ); +WRITE8_HANDLER( stactics_shot_flag_clear_w ); + +WRITE8_HANDLER( stactics_videoram_b_w ); +WRITE8_HANDLER( stactics_chardata_b_w ); +WRITE8_HANDLER( stactics_videoram_d_w ); +WRITE8_HANDLER( stactics_chardata_d_w ); +WRITE8_HANDLER( stactics_videoram_e_w ); +WRITE8_HANDLER( stactics_chardata_e_w ); +WRITE8_HANDLER( stactics_videoram_f_w ); +WRITE8_HANDLER( stactics_chardata_f_w ); + +static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x2fff) AM_READ(MRA8_ROM) + AM_RANGE(0x4000, 0x47ff) AM_READ(MRA8_RAM) + AM_RANGE(0x5000, 0x5fff) AM_READ(input_port_0_r) + AM_RANGE(0x6000, 0x6fff) AM_READ(input_port_1_r) + AM_RANGE(0x7000, 0x7fff) AM_READ(stactics_port_2_r) + AM_RANGE(0x8000, 0x8fff) AM_READ(stactics_port_3_r) + AM_RANGE(0x9000, 0x9fff) AM_READ(stactics_vert_pos_r) + AM_RANGE(0xa000, 0xafff) AM_READ(stactics_horiz_pos_r) + + AM_RANGE(0xb000, 0xb3ff) AM_READ(MRA8_RAM) + AM_RANGE(0xb800, 0xbfff) AM_READ(MRA8_RAM) + + AM_RANGE(0xd000, 0xd3ff) AM_READ(MRA8_RAM) + AM_RANGE(0xd600, 0xd7ff) AM_READ(MRA8_RAM) /* Used as scratch RAM, high scores, etc. */ + AM_RANGE(0xd800, 0xdfff) AM_READ(MRA8_RAM) + + AM_RANGE(0xe000, 0xe3ff) AM_READ(MRA8_RAM) + AM_RANGE(0xe600, 0xe7ff) AM_READ(MRA8_RAM) /* Used as scratch RAM, high scores, etc. */ + AM_RANGE(0xe800, 0xefff) AM_READ(MRA8_RAM) + + AM_RANGE(0xf000, 0xf3ff) AM_READ(MRA8_RAM) + AM_RANGE(0xf600, 0xf7ff) AM_READ(MRA8_RAM) /* Used as scratch RAM, high scores, etc. */ + AM_RANGE(0xf800, 0xffff) AM_READ(MRA8_RAM) + +ADDRESS_MAP_END + +static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x4000, 0x47ff) AM_WRITE(MWA8_RAM) + AM_RANGE(0x6000, 0x6001) AM_WRITE(stactics_coin_lockout_w) + AM_RANGE(0x6006, 0x6007) AM_WRITE(stactics_palette_w) + /* AM_RANGE(0x6010, 0x601f) AM_WRITE(stactics_sound_w) */ + AM_RANGE(0x6016, 0x6016) AM_WRITE(MWA8_RAM) AM_BASE(&stactics_motor_on) /* Note: This overlaps rocket sound */ + /* AM_RANGE(0x6020, 0x602f) AM_WRITE(stactics_lamp_latch_w) */ + AM_RANGE(0x6030, 0x603f) AM_WRITE(stactics_speed_latch_w) + AM_RANGE(0x6040, 0x604f) AM_WRITE(stactics_shot_trigger_w) + AM_RANGE(0x6050, 0x605f) AM_WRITE(stactics_shot_flag_clear_w) + AM_RANGE(0x6060, 0x606f) AM_WRITE(MWA8_RAM) AM_BASE(&stactics_display_buffer) + /* AM_RANGE(0x60a0, 0x60ef) AM_WRITE(stactics_sound2_w) */ + + AM_RANGE(0x8000, 0x8fff) AM_WRITE(stactics_scroll_ram_w) AM_BASE(&stactics_scroll_ram) + + AM_RANGE(0xb000, 0xb3ff) AM_WRITE(stactics_videoram_b_w) AM_BASE(&stactics_videoram_b) AM_SIZE(&videoram_size) + AM_RANGE(0xb400, 0xb7ff) AM_WRITE(MWA8_RAM) /* Unused, but initialized */ + AM_RANGE(0xb800, 0xbfff) AM_WRITE(stactics_chardata_b_w) AM_BASE(&stactics_chardata_b) + + AM_RANGE(0xc000, 0xcfff) AM_WRITE(MWA8_NOP) /* according to the schematics, nothing is mapped here */ + /* but, the game still tries to clear this out */ + + AM_RANGE(0xd000, 0xd3ff) AM_WRITE(stactics_videoram_d_w) AM_BASE(&stactics_videoram_d) + AM_RANGE(0xd400, 0xd7ff) AM_WRITE(MWA8_RAM) /* Used as scratch RAM, high scores, etc. */ + AM_RANGE(0xd800, 0xdfff) AM_WRITE(stactics_chardata_d_w) AM_BASE(&stactics_chardata_d) + + AM_RANGE(0xe000, 0xe3ff) AM_WRITE(stactics_videoram_e_w) AM_BASE(&stactics_videoram_e) + AM_RANGE(0xe400, 0xe7ff) AM_WRITE(MWA8_RAM) /* Used as scratch RAM, high scores, etc. */ + AM_RANGE(0xe800, 0xefff) AM_WRITE(stactics_chardata_e_w) AM_BASE(&stactics_chardata_e) + + AM_RANGE(0xf000, 0xf3ff) AM_WRITE(stactics_videoram_f_w) AM_BASE(&stactics_videoram_f) + AM_RANGE(0xf400, 0xf7ff) AM_WRITE(MWA8_RAM) /* Used as scratch RAM, high scores, etc. */ + AM_RANGE(0xf800, 0xffff) AM_WRITE(stactics_chardata_f_w) AM_BASE(&stactics_chardata_f) + +ADDRESS_MAP_END + +static INPUT_PORTS_START( stactics ) + + PORT_START /* IN0 */ + /*PORT_BIT (0x80, IP_ACTIVE_HIGH, IPT_UNUSED ) Motor status. see stactics_port_0_r */ + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON2 ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON3 ) + PORT_BIT (0x08, IP_ACTIVE_LOW, IPT_BUTTON4 ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON5 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON6 ) + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON7 ) + + PORT_START /* IN1 */ + PORT_DIPNAME( 0x07, 0x07, DEF_STR( Coin_B ) ) + PORT_DIPSETTING( 0x01, DEF_STR( 4C_1C ) ) + PORT_DIPSETTING( 0x05, DEF_STR( 2C_1C ) ) + PORT_DIPSETTING( 0x07, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x06, DEF_STR( 1C_2C ) ) + PORT_DIPSETTING( 0x04, DEF_STR( 1C_3C ) ) + PORT_DIPSETTING( 0x02, DEF_STR( 1C_4C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( 1C_5C ) ) + PORT_DIPSETTING( 0x03, DEF_STR( 1C_6C ) ) + PORT_DIPNAME( 0x38, 0x38, DEF_STR( Coin_A ) ) + PORT_DIPSETTING( 0x08, DEF_STR( 4C_1C ) ) + PORT_DIPSETTING( 0x28, DEF_STR( 2C_1C ) ) + PORT_DIPSETTING( 0x38, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x30, DEF_STR( 1C_2C ) ) + PORT_DIPSETTING( 0x20, DEF_STR( 1C_3C ) ) + PORT_DIPSETTING( 0x10, DEF_STR( 1C_4C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( 1C_5C ) ) + PORT_DIPSETTING( 0x18, DEF_STR( 1C_6C ) ) + PORT_DIPNAME( 0x40, 0x00, "High Score Initial Entry" ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x00, DEF_STR( Demo_Sounds ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START /* IN2 */ + /* This is accessed by stactics_port_2_r() */ + /*PORT_BIT (0x0f, IP_ACTIVE_HIGH, IPT_UNUSED ) Random number generator */ + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_COIN2 ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Free_Play ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_SERVICE( 0x80, IP_ACTIVE_LOW ) + + PORT_START /* IN3 */ + /* This is accessed by stactics_port_3_r() */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) + /* PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_UNUSED ) */ + PORT_DIPNAME( 0x04, 0x04, "Number of Barriers" ) + PORT_DIPSETTING( 0x04, "4" ) + PORT_DIPSETTING( 0x00, "6" ) + PORT_DIPNAME( 0x08, 0x08, "Bonus Barriers" ) + PORT_DIPSETTING( 0x08, "1" ) + PORT_DIPSETTING( 0x00, "2" ) + PORT_DIPNAME( 0x10, 0x00, "Extended Play" ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY + /* PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) */ + + PORT_START /* FAKE */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY +INPUT_PORTS_END + +/* For the character graphics */ + +static const gfx_layout gfxlayout = +{ + 8,8, + 256, + 1, /* 1 bit per pixel */ + { 0 }, + { 0, 1, 2, 3, 4, 5, 6, 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 8*8 +}; + +/* For the LED Fire Beam (made up) */ + +static const gfx_layout firelayout = +{ + 16,9, + 256, + 1, /* 1 bit per pixel */ + { 0 }, + { 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8 }, + 8*9 +}; + +static GFXDECODE_START( stactics ) + GFXDECODE_ENTRY( 0, 0, gfxlayout, 0, 64*4 ) /* Dynamically decoded from RAM */ + GFXDECODE_ENTRY( 0, 0, gfxlayout, 1*2*16, 64*4 ) /* Dynamically decoded from RAM */ + GFXDECODE_ENTRY( 0, 0, gfxlayout, 2*2*16, 64*4 ) /* Dynamically decoded from RAM */ + GFXDECODE_ENTRY( 0, 0, gfxlayout, 3*2*16, 64*4 ) /* Dynamically decoded from RAM */ + GFXDECODE_ENTRY( 0, 0, firelayout, 0, 64*4 ) /* LED Fire beam (synthesized gfx) */ + GFXDECODE_ENTRY( 0, 0, gfxlayout, 0, 64*4 ) /* LED and Misc. Display characters */ +GFXDECODE_END + +static MACHINE_DRIVER_START( stactics ) + + /* basic machine hardware */ + MDRV_CPU_ADD(8080, 1933560) + MDRV_CPU_PROGRAM_MAP(readmem,writemem) + MDRV_CPU_VBLANK_INT(stactics_interrupt,1) + + MDRV_SCREEN_REFRESH_RATE(60) + MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION) + + /* video hardware */ + MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) + MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) + MDRV_SCREEN_SIZE(32*8, 32*8) + MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1) + MDRV_GFXDECODE(stactics) + MDRV_PALETTE_LENGTH(16) + MDRV_COLORTABLE_LENGTH(16*4*4*2) + + MDRV_PALETTE_INIT(stactics) + MDRV_VIDEO_START(stactics) + MDRV_VIDEO_UPDATE(stactics) + + /* sound hardware */ +MACHINE_DRIVER_END + + + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +ROM_START( stactics ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "epr-218x", 0x0000, 0x0800, CRC(b1186ad2) SHA1(88929a183ac0499619b3e07241f3b5a0c89bdab1) ) + ROM_LOAD( "epr-219x", 0x0800, 0x0800, CRC(3b86036d) SHA1(6ad5e14dcfdbc6d2a0a32ae7f18ce41ab4b51eec) ) + ROM_LOAD( "epr-220x", 0x1000, 0x0800, CRC(c58702da) SHA1(93936c46810722d435f9ddb0641defb741743dee) ) + ROM_LOAD( "epr-221x", 0x1800, 0x0800, CRC(e327639e) SHA1(024929b65c71eaeb6d234a14d7535a7d5b98b8d3) ) + ROM_LOAD( "epr-222y", 0x2000, 0x0800, CRC(24dd2bcc) SHA1(f77c59beccc1a77e3bfc2928ff532d6e221ff42d) ) + ROM_LOAD( "epr-223x", 0x2800, 0x0800, CRC(7fef0940) SHA1(5b2af55f75ef0130f9202b6a916a96dbd601fcfa) ) + + ROM_REGION( 0x1060, REGION_GFX1, ROMREGION_DISPOSE ) /* gfx decoded in vh_start */ + ROM_LOAD( "epr-217", 0x0000, 0x0800, CRC(38259f5f) SHA1(1f4182ffc2d78fca22711526bb2ae2cfe040173c) ) /* LED fire beam data */ + ROM_LOAD( "pr55", 0x0800, 0x0800, CRC(f162673b) SHA1(83743780b6c1f8014df24fa0650000b7cb137d92) ) /* timing PROM (unused) */ + ROM_LOAD( "pr65", 0x1000, 0x0020, CRC(a1506b9d) SHA1(037c3db2ea40eca459e8acba9d1506dd28d72d10) ) /* timing PROM (unused) */ + ROM_LOAD( "pr66", 0x1020, 0x0020, CRC(78dcf300) SHA1(37034cc0cfa4a8ec47937a2a34b77ec56b387a9b) ) /* timing PROM (unused) */ + ROM_LOAD( "pr67", 0x1040, 0x0020, CRC(b27874e7) SHA1(c24bc78c4b2ae01aaed5d994ce2e7c5e0f2eece8) ) /* LED timing ROM (unused) */ + + ROM_REGION( 0x0800, REGION_PROMS, 0 ) + ROM_LOAD( "pr54", 0x0000, 0x0800, CRC(9640bd6e) SHA1(dd12952a6591f2056ac1b5688dca0a3a2ef69f2d) ) /* color/priority prom */ +ROM_END + + + +GAME( 1981, stactics, 0, stactics, stactics, 0, ROT0, "Sega", "Space Tactics", GAME_NO_SOUND ) + |