diff options
Diffstat (limited to 'src/mame/drivers/talbot.c')
-rw-r--r-- | src/mame/drivers/talbot.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/src/mame/drivers/talbot.c b/src/mame/drivers/talbot.c new file mode 100644 index 00000000000..e2e89419a86 --- /dev/null +++ b/src/mame/drivers/talbot.c @@ -0,0 +1,280 @@ +/* + Talbot (c) 1982 Volt Electronics + +ALPHA 8201 MCU handling by Tatsuyuki satoh + + TODO: + verify CPU and MCU clock frequency. +*/ + +#include "driver.h" +#include "sound/ay8910.h" + +static tilemap *bg_tilemap; + +static WRITE8_HANDLER( talbot_videoram_w ) +{ + videoram[offset] = data; + tilemap_mark_tile_dirty(bg_tilemap, offset); +} + +static WRITE8_HANDLER( talbot_colorram_w ) +{ + colorram[offset] = data; + tilemap_mark_tile_dirty(bg_tilemap, offset); +} + +static WRITE8_HANDLER( talbot_mcu_halt_w ) +{ + data &= 1; + cpunum_set_input_line(1, INPUT_LINE_HALT, data ? ASSERT_LINE : CLEAR_LINE); +} + +static WRITE8_HANDLER( talbot_mcu_switch_w ) +{ +} + +static ADDRESS_MAP_START( cpu_map, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x5fff) AM_ROM + AM_RANGE(0x6000, 0x63ff) AM_RAM AM_SHARE(1) /* MCU shared RAM */ + + AM_RANGE(0x7000, 0x7000) AM_WRITE(AY8910_write_port_0_w) + AM_RANGE(0x7001, 0x7001) AM_WRITE(AY8910_control_port_0_w) + AM_RANGE(0x8000, 0x83ff) AM_READWRITE(MRA8_RAM, talbot_videoram_w) AM_BASE(&videoram) + AM_RANGE(0x8400, 0x87ff) AM_READWRITE(MRA8_RAM, talbot_colorram_w) AM_BASE(&colorram) + AM_RANGE(0x8800, 0x8fef) AM_RAM + AM_RANGE(0x8ff0, 0x8fff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size) + AM_RANGE(0xa000, 0xa000) AM_WRITE(interrupt_enable_w) + AM_RANGE(0xa001, 0xa001) AM_WRITE(MWA8_RAM) + AM_RANGE(0xa003, 0xa003) AM_WRITE(MWA8_RAM) + AM_RANGE(0xa006, 0xa006) AM_WRITE(talbot_mcu_halt_w) + AM_RANGE(0xa007, 0xa007) AM_WRITE(talbot_mcu_switch_w) + AM_RANGE(0xa000, 0xa000) AM_READ(input_port_0_r) + AM_RANGE(0xa040, 0xa040) AM_READ(input_port_1_r) + AM_RANGE(0xa060, 0xa06f) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram_2) + AM_RANGE(0xa080, 0xa080) AM_READ(input_port_2_r) + AM_RANGE(0xa0c0, 0xa0c0) AM_READWRITE(input_port_3_r,MWA8_NOP /*watchdog_reset_w*/) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( mcu_map, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x03ff) AM_RAM AM_SHARE(1) /* main CPU shared RAM */ +ADDRESS_MAP_END + +static INPUT_PORTS_START( talbot ) + PORT_START /* IN0 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON1 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON2 ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY + 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_JOYSTICK_DOWN ) PORT_8WAY + + PORT_START /* IN1 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL + + PORT_START + PORT_DIPNAME( 0x03, 0x03, DEF_STR( Coinage ) ) + PORT_DIPSETTING( 0x03, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x02, DEF_STR( 1C_2C ) ) + PORT_DIPSETTING( 0x01, DEF_STR( 1C_3C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Free_Play ) ) + PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_UNKNOWN ) /* Has to be 0 */ + + PORT_START /* IN2 */ + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START2 ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN2 ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN ) +INPUT_PORTS_END + +static const gfx_layout charlayout = +{ + 8,8, /* 8*8 characters */ + RGN_FRAC(1,1), + 2, /* 2 bits per pixel */ + { 0, 4 }, /* the two bitplanes for 4 pixels are packed into one byte */ + { 8*8+0, 8*8+1, 8*8+2, 8*8+3, 0, 1, 2, 3 }, /* bits are packed in groups of four */ + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 16*8 /* every char takes 16 bytes */ +}; + +static const gfx_layout spritelayout = +{ + 16,16, /* 16*16 sprites */ + RGN_FRAC(1,1), + 2, /* 2 bits per pixel */ + { 0, 4 }, /* the two bitplanes for 4 pixels are packed into one byte */ + { 8*8, 8*8+1, 8*8+2, 8*8+3, 16*8+0, 16*8+1, 16*8+2, 16*8+3, + 24*8+0, 24*8+1, 24*8+2, 24*8+3, 0, 1, 2, 3 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, + 32*8, 33*8, 34*8, 35*8, 36*8, 37*8, 38*8, 39*8 }, + 64*8 /* every sprite takes 64 bytes */ +}; + +static GFXDECODE_START( talbot ) + GFXDECODE_ENTRY( REGION_GFX1, 0, charlayout, 0, 64 ) + GFXDECODE_ENTRY( REGION_GFX2, 0, spritelayout, 0, 64 ) +GFXDECODE_END + +static TILE_GET_INFO( get_tile_info_bg ) +{ + int code = videoram[tile_index]; + int color = colorram[tile_index] & 0x1f; + + SET_TILE_INFO(0, code, color + 0x20, 0); +} + +static VIDEO_START( talbot ) +{ + bg_tilemap = tilemap_create(get_tile_info_bg, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8, 8, 32, 32); +} + +static void draw_sprites(running_machine *machine, mame_bitmap *bitmap, const rectangle *cliprect) +{ + int offs; + + for (offs = spriteram_size - 2; offs >= 0; offs -= 2) + { + int code = spriteram[offs] >> 2; + int color = spriteram[offs + 1]; + int flipx = spriteram[offs] & 0x01; + int flipy = spriteram[offs] & 0x02; + int sx = ((256 + 16 - spriteram_2[offs + 1]) & 0xff) - 16; + int sy = spriteram_2[offs] - 16; + + drawgfx(bitmap, + machine->gfx[1], + code, color, + flipx, flipy, + sx, sy, + cliprect, + TRANSPARENCY_PEN, 0); + } +} + +static VIDEO_UPDATE( talbot ) +{ + tilemap_draw(bitmap,cliprect,bg_tilemap,0,0); + draw_sprites(machine, bitmap, cliprect); + return 0; +} + +static PALETTE_INIT( talbot ) +{ + int i; + + for (i = 0;i < 32;i++) + { + int bit0,bit1,bit2,r,g,b; + + + /* red component */ + bit0 = (*color_prom >> 0) & 0x01; + bit1 = (*color_prom >> 1) & 0x01; + bit2 = (*color_prom >> 2) & 0x01; + r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + /* green component */ + bit0 = (*color_prom >> 3) & 0x01; + bit1 = (*color_prom >> 4) & 0x01; + bit2 = (*color_prom >> 5) & 0x01; + g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + /* blue component */ + bit0 = 0; + bit1 = (*color_prom >> 6) & 0x01; + bit2 = (*color_prom >> 7) & 0x01; + b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; + + palette_set_color(machine,i,MAKE_RGB(r,g,b)); + color_prom++; + } + + /* color_prom now points to the beginning of the lookup table */ + + /* Colortable entry */ + for(i = 0; i < 0x100; i++) + colortable[i] = color_prom[i]; +} + +static MACHINE_DRIVER_START( talbot ) + /* basic machine hardware */ + MDRV_CPU_ADD(Z80, 18432000/6) /* (?) */ + MDRV_CPU_PROGRAM_MAP(cpu_map, 0) + MDRV_CPU_VBLANK_INT(irq0_line_hold, 1) + + /* MCU */ +// MDRV_CPU_ADD(ALPHA8201, 18432000/6/8/2) /* (?) */ + MDRV_CPU_ADD(ALPHA8201, 18432000/6/8) + MDRV_CPU_PROGRAM_MAP(mcu_map,0) + + MDRV_SCREEN_REFRESH_RATE(60) + MDRV_SCREEN_VBLANK_TIME(DEFAULT_REAL_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, 32*8-1, 2*8, 30*8-1) + MDRV_GFXDECODE(talbot) + MDRV_PALETTE_LENGTH(32) + MDRV_COLORTABLE_LENGTH(0x100) + + MDRV_PALETTE_INIT(talbot) + MDRV_VIDEO_START(talbot) + MDRV_VIDEO_UPDATE(talbot) + + /* sound hardware */ + MDRV_SPEAKER_STANDARD_MONO("mono") + MDRV_SOUND_ADD(AY8910, 18432000/12) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0) +MACHINE_DRIVER_END + + +ROM_START( talbot ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "11.10g", 0x0000, 0x1000, CRC(0368607d) SHA1(275a29fb018bd327e64cf4fcc04590099c90290a) ) + ROM_LOAD( "12.11g", 0x1000, 0x1000, CRC(400e633b) SHA1(8d76df34174286e2b0c9341bbc141c9e77533f06) ) + ROM_LOAD( "13.10h", 0x2000, 0x1000, CRC(be575d9e) SHA1(17d3bbdc755920b5a6e1e81cbb7d51be20257ff1) ) + ROM_LOAD( "14.11h", 0x3000, 0x1000, CRC(56464614) SHA1(21cfcf3212e0a74c695ce1d6412d630a7141b2c9) ) + ROM_LOAD( "15.10i", 0x4000, 0x1000, CRC(0225b7ef) SHA1(9adee4831eb633b0a31580596205a655df94c2b2) ) + ROM_LOAD( "16.11i", 0x5000, 0x1000, CRC(1612adf5) SHA1(9adeb21d5d1692f6e31460062f03f2008076b307) ) + + ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE ) + ROM_LOAD( "7.6a", 0x0000, 0x1000, CRC(bde14194) SHA1(f8f569342a3094eb5450a30b8ab87901b98e6061) ) + + ROM_REGION( 0x1000, REGION_GFX2, ROMREGION_DISPOSE ) + ROM_LOAD( "8.6b", 0x0000, 0x1000, CRC(ddcd227a) SHA1(c44de36311cd173afb3eebf8487305b06e069c0f) ) + + ROM_REGION( 0x0120, REGION_PROMS, 0 ) + ROM_LOAD( "mb7051.7h", 0x0000, 0x0020, CRC(7a153c60) SHA1(4b147c63e467cca7359acb5f3652ed9db9a36cc8) ) + ROM_LOAD( "mb7052.5e", 0x0020, 0x0100, CRC(a3189986) SHA1(f113c1253ba2f8f213c600e93a39c0957a933306) ) +ROM_END + +GAME( 1982, talbot, 0, talbot, talbot, 0, ROT90, "Volt Electronics (Alpha license)", "Talbot", 0 ) |