diff options
Diffstat (limited to 'src/mame/drivers/citycon.c')
-rw-r--r-- | src/mame/drivers/citycon.c | 368 |
1 files changed, 368 insertions, 0 deletions
diff --git a/src/mame/drivers/citycon.c b/src/mame/drivers/citycon.c new file mode 100644 index 00000000000..cf299a3a41f --- /dev/null +++ b/src/mame/drivers/citycon.c @@ -0,0 +1,368 @@ +/*************************************************************************** + + +***************************************************************************/ + +#include "driver.h" +#include "sound/ay8910.h" +#include "sound/2203intf.h" + + +extern UINT8 *citycon_videoram; +extern UINT8 *citycon_scroll; +extern UINT8 *citycon_linecolor; +WRITE8_HANDLER( citycon_videoram_w ); +WRITE8_HANDLER( citycon_linecolor_w ); +WRITE8_HANDLER( citycon_background_w ); + +VIDEO_UPDATE( citycon ); +VIDEO_START( citycon ); + + +static READ8_HANDLER( citycon_in_r ) +{ + return readinputport(flip_screen ? 1 : 0); +} + + + +static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x1fff) AM_READ(MRA8_RAM) + AM_RANGE(0x3000, 0x3000) AM_READ(citycon_in_r) /* player 1 & 2 inputs multiplexed */ + AM_RANGE(0x3001, 0x3001) AM_READ(input_port_2_r) + AM_RANGE(0x3002, 0x3002) AM_READ(input_port_3_r) + AM_RANGE(0x3007, 0x3007) AM_READ(watchdog_reset_r) /* ? */ + AM_RANGE(0x4000, 0xffff) AM_READ(MRA8_ROM) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x0fff) AM_WRITE(MWA8_RAM) + AM_RANGE(0x1000, 0x1fff) AM_WRITE(citycon_videoram_w) AM_BASE(&citycon_videoram) + AM_RANGE(0x2000, 0x20ff) AM_WRITE(citycon_linecolor_w) AM_BASE(&citycon_linecolor) + AM_RANGE(0x2800, 0x28ff) AM_WRITE(MWA8_RAM) AM_BASE(&spriteram) AM_SIZE(&spriteram_size) + AM_RANGE(0x3000, 0x3000) AM_WRITE(citycon_background_w) + AM_RANGE(0x3001, 0x3001) AM_WRITE(soundlatch_w) + AM_RANGE(0x3002, 0x3002) AM_WRITE(soundlatch2_w) + AM_RANGE(0x3004, 0x3005) AM_WRITE(MWA8_RAM) AM_BASE(&citycon_scroll) + AM_RANGE(0x3800, 0x3cff) AM_WRITE(paletteram_RRRRGGGGBBBBxxxx_be_w) AM_BASE(&paletteram) + AM_RANGE(0x4000, 0xffff) AM_WRITE(MWA8_ROM) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( readmem_sound, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x0fff) AM_READ(MRA8_RAM) +// AM_RANGE(0x4002, 0x4002) AM_READ(AY8910_read_port_0_r) /* ?? */ + AM_RANGE(0x6001, 0x6001) AM_READ(YM2203_read_port_0_r) + AM_RANGE(0x8000, 0xffff) AM_READ(MRA8_ROM) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( writemem_sound, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x0fff) AM_WRITE(MWA8_RAM) + AM_RANGE(0x4000, 0x4000) AM_WRITE(AY8910_control_port_0_w) + AM_RANGE(0x4001, 0x4001) AM_WRITE(AY8910_write_port_0_w) + AM_RANGE(0x6000, 0x6000) AM_WRITE(YM2203_control_port_0_w) + AM_RANGE(0x6001, 0x6001) AM_WRITE(YM2203_write_port_0_w) + AM_RANGE(0x8000, 0xffff) AM_WRITE(MWA8_ROM) +ADDRESS_MAP_END + + + +static INPUT_PORTS_START( citycon ) + PORT_START_TAG("IN0") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 ) + + PORT_START_TAG("IN1") + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) + + PORT_START_TAG("IN2") + PORT_DIPNAME( 0x03, 0x00, DEF_STR( Lives ) ) + PORT_DIPSETTING( 0x00, "3" ) + PORT_DIPSETTING( 0x01, "4" ) + PORT_DIPSETTING( 0x02, "5" ) + PORT_DIPSETTING( 0x03, "Infinite (Cheat)") + PORT_DIPNAME( 0x04, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x04, DEF_STR( On ) ) + PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x08, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x10, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x00, DEF_STR( Demo_Sounds ) ) + PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x00, DEF_STR( Cabinet ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) + PORT_DIPSETTING( 0x40, DEF_STR( Cocktail ) ) + /* the coin input must stay low for exactly 2 frames to be consistently recognized. */ + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(2) + + PORT_START_TAG("IN3") + PORT_DIPNAME( 0x07, 0x00, DEF_STR( Coinage ) ) + PORT_DIPSETTING( 0x07, DEF_STR( 5C_1C ) ) + PORT_DIPSETTING( 0x06, DEF_STR( 4C_1C ) ) + PORT_DIPSETTING( 0x05, DEF_STR( 3C_1C ) ) + PORT_DIPSETTING( 0x04, DEF_STR( 2C_1C ) ) + PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) ) + PORT_DIPSETTING( 0x01, DEF_STR( 1C_2C ) ) + PORT_DIPSETTING( 0x02, DEF_STR( 1C_3C ) ) + PORT_DIPSETTING( 0x03, DEF_STR( 1C_4C ) ) + PORT_DIPNAME( 0x08, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x08, DEF_STR( On ) ) + PORT_DIPNAME( 0x10, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x10, DEF_STR( On ) ) + PORT_DIPNAME( 0x20, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x20, DEF_STR( On ) ) + PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x40, DEF_STR( On ) ) + PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) +INPUT_PORTS_END + + + +static const gfx_layout charlayout = +{ + 8,8, + RGN_FRAC(1,2), + 5, + { 16, 12, 8, 4, 0 }, + { 0, 1, 2, 3, RGN_FRAC(1,2)+0, RGN_FRAC(1,2)+1, RGN_FRAC(1,2)+2, RGN_FRAC(1,2)+3 }, + { 0*24, 1*24, 2*24, 3*24, 4*24, 5*24, 6*24, 7*24 }, + 24*8 +}; + +static const gfx_layout tilelayout = +{ + 8,8, /* 8*8 characters */ + 256, /* 256 characters */ + 4, /* 4 bits per pixel */ + { 4, 0, 0xc000*8+4, 0xc000*8+0 }, + { 0, 1, 2, 3, 256*8*8+0, 256*8*8+1, 256*8*8+2, 256*8*8+3 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 8*8 /* every char takes 8 consecutive bytes */ +}; + +static const gfx_layout spritelayout = +{ + 8,16, /* 8*16 sprites */ + 128, /* 128 sprites */ + 4, /* 4 bits per pixel */ + { 4, 0, 0x2000*8+4, 0x2000*8+0 }, + { 0, 1, 2, 3, 128*16*8+0, 128*16*8+1, 128*16*8+2, 128*16*8+3 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, + 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, + 16*8 /* every sprite takes 16 consecutive bytes */ +}; + + +static GFXDECODE_START( citycon ) +// GFXDECODE_ENTRY( REGION_GFX1, 0x00000, charlayout, 512, 32 ) /* colors 512-639 */ + GFXDECODE_ENTRY( REGION_GFX1, 0x00000, charlayout, 640, 32 ) /* colors 512-639 */ + GFXDECODE_ENTRY( REGION_GFX2, 0x00000, spritelayout, 0, 16 ) /* colors 0-255 */ + GFXDECODE_ENTRY( REGION_GFX2, 0x01000, spritelayout, 0, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x00000, tilelayout, 256, 16 ) /* colors 256-511 */ + GFXDECODE_ENTRY( REGION_GFX3, 0x01000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x02000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x03000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x04000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x05000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x06000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x07000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x08000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x09000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x0a000, tilelayout, 256, 16 ) + GFXDECODE_ENTRY( REGION_GFX3, 0x0b000, tilelayout, 256, 16 ) +GFXDECODE_END + + + +static struct YM2203interface ym2203_interface = +{ + soundlatch_r, + soundlatch2_r, +}; + + + +static MACHINE_DRIVER_START( citycon ) + + /* basic machine hardware */ + MDRV_CPU_ADD(M6809, 2048000) /* 2.048 MHz ??? */ + MDRV_CPU_PROGRAM_MAP(readmem,writemem) + MDRV_CPU_VBLANK_INT(irq0_line_hold,1) + + MDRV_CPU_ADD(M6809, 640000) + /* audio CPU */ /* 0.640 MHz ??? */ + MDRV_CPU_PROGRAM_MAP(readmem_sound,writemem_sound) + MDRV_CPU_VBLANK_INT(irq0_line_hold,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(1*8, 31*8-1, 2*8, 30*8-1) + MDRV_GFXDECODE(citycon) + MDRV_PALETTE_LENGTH(640+1024) /* 640 real palette + 1024 virtual palette */ + + MDRV_VIDEO_START(citycon) + MDRV_VIDEO_UPDATE(citycon) + + /* sound hardware */ + MDRV_SPEAKER_STANDARD_MONO("mono") + + MDRV_SOUND_ADD(AY8910, 1250000) + MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.40) + + MDRV_SOUND_ADD(YM2203, 1250000) + MDRV_SOUND_CONFIG(ym2203_interface) + MDRV_SOUND_ROUTE(0, "mono", 0.40) + MDRV_SOUND_ROUTE(1, "mono", 0.40) + MDRV_SOUND_ROUTE(2, "mono", 0.40) + MDRV_SOUND_ROUTE(3, "mono", 0.20) +MACHINE_DRIVER_END + + + +/*************************************************************************** + + Game driver(s) + +***************************************************************************/ + +ROM_START( citycon ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "c10", 0x4000, 0x4000, CRC(ae88b53c) SHA1(dd12310bd9c9b93462446e8e0a1c853506bf3aa1) ) + ROM_LOAD( "c11", 0x8000, 0x8000, CRC(139eb1aa) SHA1(c570e8ca1499f7ea61938e78c32c1cc3050ca2b7) ) + + ROM_REGION( 0x10000, REGION_CPU2, 0 ) + ROM_LOAD( "c1", 0x8000, 0x8000, CRC(1fad7589) SHA1(2e626bbbab8cffe11ee7de3e56aa1871c29d5fa9) ) + + ROM_REGION( 0x03000, REGION_GFX1, ROMREGION_DISPOSE ) + ROM_LOAD( "c4", 0x00000, 0x2000, CRC(a6b32fc6) SHA1(d99d5a527440e9a91525c1084b95b213e3b760ec) ) /* Characters */ + + ROM_REGION( 0x04000, REGION_GFX2, ROMREGION_DISPOSE ) + ROM_LOAD( "c12", 0x00000, 0x2000, CRC(08eaaccd) SHA1(a970381e3ba22bcdea6df2d31cd8a10c4b2bc413) ) /* Sprites */ + ROM_LOAD( "c13", 0x02000, 0x2000, CRC(1819aafb) SHA1(8a5ffcd8866e09c5568879257384767d61796111) ) + + ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE ) + ROM_LOAD( "c9", 0x00000, 0x8000, CRC(8aeb47e6) SHA1(bb09dbe6b37e1bd02abf3024ac4d954c8f0e70f2) ) /* Background tiles */ + ROM_LOAD( "c8", 0x08000, 0x4000, CRC(0d7a1eeb) SHA1(60b8d4124ce857a248d3c41fdb050f11be58549f) ) + ROM_LOAD( "c6", 0x0c000, 0x8000, CRC(2246fe9d) SHA1(f7f8708d499bcbd1a583e1092b54425ad1105f94) ) + ROM_LOAD( "c7", 0x14000, 0x4000, CRC(e8b97de9) SHA1(f4d1b7075f47ab4522c36281b97eaa02fe383814) ) + + ROM_REGION( 0xe000, REGION_GFX4, 0 ) /* background tilemaps */ + ROM_LOAD( "c2", 0x0000, 0x8000, CRC(f2da4f23) SHA1(5ea1a51c3ac283796f7eafb6719d88356767340d) ) /* background maps */ + ROM_LOAD( "c3", 0x8000, 0x4000, CRC(7ef3ac1b) SHA1(8a0497c4e4733f9c50d576f632210b82497a5e1c) ) + ROM_LOAD( "c5", 0xc000, 0x2000, CRC(c03d8b1b) SHA1(641c1eba334d36ea64b9293a20320b31c7c88858) ) /* color codes for the background */ +ROM_END + +ROM_START( citycona ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "c10", 0x4000, 0x4000, CRC(ae88b53c) SHA1(dd12310bd9c9b93462446e8e0a1c853506bf3aa1) ) + ROM_LOAD( "c11b", 0x8000, 0x8000, CRC(d64af468) SHA1(5bb3541af3ce632e8eca313231205713d72fb9dc) ) + + ROM_REGION( 0x10000, REGION_CPU2, 0 ) + ROM_LOAD( "c1", 0x8000, 0x8000, CRC(1fad7589) SHA1(2e626bbbab8cffe11ee7de3e56aa1871c29d5fa9) ) + + ROM_REGION( 0x03000, REGION_GFX1, ROMREGION_DISPOSE ) + ROM_LOAD( "c4", 0x00000, 0x2000, CRC(a6b32fc6) SHA1(d99d5a527440e9a91525c1084b95b213e3b760ec) ) /* Characters */ + + ROM_REGION( 0x04000, REGION_GFX2, ROMREGION_DISPOSE ) + ROM_LOAD( "c12", 0x00000, 0x2000, CRC(08eaaccd) SHA1(a970381e3ba22bcdea6df2d31cd8a10c4b2bc413) ) /* Sprites */ + ROM_LOAD( "c13", 0x02000, 0x2000, CRC(1819aafb) SHA1(8a5ffcd8866e09c5568879257384767d61796111) ) + + ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE ) + ROM_LOAD( "c9", 0x00000, 0x8000, CRC(8aeb47e6) SHA1(bb09dbe6b37e1bd02abf3024ac4d954c8f0e70f2) ) /* Background tiles */ + ROM_LOAD( "c8", 0x08000, 0x4000, CRC(0d7a1eeb) SHA1(60b8d4124ce857a248d3c41fdb050f11be58549f) ) + ROM_LOAD( "c6", 0x0c000, 0x8000, CRC(2246fe9d) SHA1(f7f8708d499bcbd1a583e1092b54425ad1105f94) ) + ROM_LOAD( "c7", 0x14000, 0x4000, CRC(e8b97de9) SHA1(f4d1b7075f47ab4522c36281b97eaa02fe383814) ) + + ROM_REGION( 0xe000, REGION_GFX4, 0 ) /* background tilemaps */ + ROM_LOAD( "c2", 0x0000, 0x8000, CRC(f2da4f23) SHA1(5ea1a51c3ac283796f7eafb6719d88356767340d) ) /* background maps */ + ROM_LOAD( "c3", 0x8000, 0x4000, CRC(7ef3ac1b) SHA1(8a0497c4e4733f9c50d576f632210b82497a5e1c) ) + ROM_LOAD( "c5", 0xc000, 0x2000, CRC(c03d8b1b) SHA1(641c1eba334d36ea64b9293a20320b31c7c88858) ) /* color codes for the background */ +ROM_END + +ROM_START( cruisin ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "cr10", 0x4000, 0x4000, CRC(cc7c52f3) SHA1(69d76f146fb1dac62c6def3a4269012b3880f03b) ) + ROM_LOAD( "cr11", 0x8000, 0x8000, CRC(5422f276) SHA1(d384fc4f853fe79b73e939a8fc7b7af780659c5e) ) + + ROM_REGION( 0x10000, REGION_CPU2, 0 ) + ROM_LOAD( "c1", 0x8000, 0x8000, CRC(1fad7589) SHA1(2e626bbbab8cffe11ee7de3e56aa1871c29d5fa9) ) + + ROM_REGION( 0x03000, REGION_GFX1, ROMREGION_DISPOSE ) + ROM_LOAD( "cr4", 0x00000, 0x2000, CRC(8cd0308e) SHA1(7303b9e074bda557d64b39e04cef0f965a756be6) ) /* Characters */ + + ROM_REGION( 0x04000, REGION_GFX2, ROMREGION_DISPOSE ) + ROM_LOAD( "c12", 0x00000, 0x2000, CRC(08eaaccd) SHA1(a970381e3ba22bcdea6df2d31cd8a10c4b2bc413) ) /* Sprites */ + ROM_LOAD( "c13", 0x02000, 0x2000, CRC(1819aafb) SHA1(8a5ffcd8866e09c5568879257384767d61796111) ) + + ROM_REGION( 0x18000, REGION_GFX3, ROMREGION_DISPOSE ) + ROM_LOAD( "c9", 0x00000, 0x8000, CRC(8aeb47e6) SHA1(bb09dbe6b37e1bd02abf3024ac4d954c8f0e70f2) ) /* Background tiles */ + ROM_LOAD( "c8", 0x08000, 0x4000, CRC(0d7a1eeb) SHA1(60b8d4124ce857a248d3c41fdb050f11be58549f) ) + ROM_LOAD( "c6", 0x0c000, 0x8000, CRC(2246fe9d) SHA1(f7f8708d499bcbd1a583e1092b54425ad1105f94) ) + ROM_LOAD( "c7", 0x14000, 0x4000, CRC(e8b97de9) SHA1(f4d1b7075f47ab4522c36281b97eaa02fe383814) ) + + ROM_REGION( 0xe000, REGION_GFX4, 0 ) /* background tilemaps */ + ROM_LOAD( "c2", 0x0000, 0x8000, CRC(f2da4f23) SHA1(5ea1a51c3ac283796f7eafb6719d88356767340d) ) /* background maps */ + ROM_LOAD( "c3", 0x8000, 0x4000, CRC(7ef3ac1b) SHA1(8a0497c4e4733f9c50d576f632210b82497a5e1c) ) + ROM_LOAD( "c5", 0xc000, 0x2000, CRC(c03d8b1b) SHA1(641c1eba334d36ea64b9293a20320b31c7c88858) ) /* color codes for the background */ +ROM_END + + + +static DRIVER_INIT( citycon ) +{ + UINT8 *rom = memory_region(REGION_GFX1); + int i; + + + /* + City Connection controls the text color code for each _scanline_, not + for each character as happens in most games. To handle that conveniently, + I convert the 2bpp char data into 5bpp, and create a virtual palette so + characters can still be drawn in one pass. + */ + for (i = 0x0fff;i >= 0;i--) + { + int mask; + + rom[3*i] = rom[i]; + rom[3*i+1] = 0; + rom[3*i+2] = 0; + mask = rom[i] | (rom[i] << 4) | (rom[i] >> 4); + if (i & 0x01) rom[3*i+1] |= mask & 0xf0; + if (i & 0x02) rom[3*i+1] |= mask & 0x0f; + if (i & 0x04) rom[3*i+2] |= mask & 0xf0; + } +} + + + +GAME( 1985, citycon, 0, citycon, citycon, citycon, ROT0, "Jaleco", "City Connection (set 1)", 0 ) +GAME( 1985, citycona, citycon, citycon, citycon, citycon, ROT0, "Jaleco", "City Connection (set 2)", 0 ) +GAME( 1985, cruisin, citycon, citycon, citycon, citycon, ROT0, "Jaleco (Kitkorp license)", "Cruisin", 0 ) |