diff options
Diffstat (limited to 'src/mame/drivers/dorachan.c')
-rw-r--r-- | src/mame/drivers/dorachan.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/src/mame/drivers/dorachan.c b/src/mame/drivers/dorachan.c new file mode 100644 index 00000000000..b6d58f4b6d5 --- /dev/null +++ b/src/mame/drivers/dorachan.c @@ -0,0 +1,266 @@ +/* +Dorachan (Dora-Chan ?) (c) 1980 Craul Denshi +Driver by Tomasz Slanina + +Similar to Beam Invader +Todo: +- discrete sound +- dips (if any) - bits 5,6,7 of input port 0 ? +*/ + +#include "driver.h" + + +#define NUM_PENS (8) + + +static UINT8 *dorachan_videoram; +static size_t dorachan_videoram_size; +static UINT8 dorachan_flip_screen; + + + +/************************************* + * + * Protection handling + * + *************************************/ + +static READ8_HANDLER( dorachan_protection_r ) +{ + UINT8 ret = 0; + + if ((cpu_getactivecpu() >= 0)) + { + switch (activecpu_get_previouspc()) + { + case 0x70ce: ret = 0xf2; break; + case 0x72a2: ret = 0xd5; break; + case 0x72b5: ret = 0xcb; break; + + default: + mame_printf_debug("unhandled $2400 read @ %x\n",activecpu_get_previouspc()); + break; + } + } + + return ret; +} + + + +/************************************* + * + * Video system + * + *************************************/ + +static void get_pens(pen_t *pens) +{ + offs_t i; + + for (i = 0; i < NUM_PENS; i++) + { + pens[i] = MAKE_RGB(pal1bit(i >> 2), pal1bit(i >> 1), pal1bit(i >> 0)); + } +} + + +static VIDEO_UPDATE( dorachan ) +{ + pen_t pens[NUM_PENS]; + offs_t offs; + const UINT8 *color_map_base; + + get_pens(pens); + + color_map_base = memory_region(REGION_PROMS); + + for (offs = 0; offs < dorachan_videoram_size; offs++) + { + int i; + UINT8 fore_color; + + UINT8 x = offs >> 8 << 3; + UINT8 y = offs & 0xff; + + /* the need for +1 is extremely unusual, but definetely correct */ + offs_t color_address = ((((offs << 2) & 0x03e0) | (offs >> 8)) + 1) & 0x03ff; + + UINT8 data = dorachan_videoram[offs]; + + if (dorachan_flip_screen) + fore_color = (color_map_base[color_address] >> 3) & 0x07; + else + fore_color = (color_map_base[color_address] >> 0) & 0x07; + + for (i = 0; i < 8; i++) + { + UINT8 color = (data & 0x01) ? fore_color : RGB_BLACK; + *BITMAP_ADDR32(bitmap, y, x) = pens[color]; + + data = data >> 1; + x = x + 1; + } + } + + return 0; +} + + +static WRITE8_HANDLER(dorachan_ctrl_w) +{ + dorachan_flip_screen = (data >> 6) & 0x01; +} + + +static READ8_HANDLER( dorachan_v128_r ) +{ + /* to avoid resetting (when player 2 starts) bit 0 need to be + inverted when screen is flipped */ + return ((video_screen_get_vpos(0) >> 7) & 0x01) ^ dorachan_flip_screen; +} + + + +/************************************* + * + * Memory handlers + * + *************************************/ + +static ADDRESS_MAP_START( dorachan_map, ADDRESS_SPACE_PROGRAM, 8 ) + AM_RANGE(0x0000, 0x17ff) AM_ROM + AM_RANGE(0x1800, 0x1fff) AM_RAM + AM_RANGE(0x2000, 0x23ff) AM_ROM + AM_RANGE(0x2400, 0x2400) AM_MIRROR(0x03ff) AM_READ(input_port_0_r) + AM_RANGE(0x2800, 0x2800) AM_MIRROR(0x03ff) AM_READ(input_port_1_r) + AM_RANGE(0x2c00, 0x2c00) AM_MIRROR(0x03ff) AM_READ(input_port_2_r) + AM_RANGE(0x3800, 0x3800) AM_MIRROR(0x03ff) AM_READ(input_port_3_r) + AM_RANGE(0x4000, 0x5fff) AM_RAM AM_BASE(&dorachan_videoram) AM_SIZE(&dorachan_videoram_size) + AM_RANGE(0x6000, 0x77ff) AM_ROM +ADDRESS_MAP_END + + + +/************************************* + * + * Port handlers + * + *************************************/ + +static ADDRESS_MAP_START( dorachan_io_map, ADDRESS_SPACE_IO, 8 ) + ADDRESS_MAP_FLAGS( AMEF_ABITS(8) ) + AM_RANGE(0x01, 0x01) AM_WRITE(MWA8_NOP) + AM_RANGE(0x02, 0x02) AM_WRITE(MWA8_NOP) + AM_RANGE(0x03, 0x03) AM_WRITE(dorachan_ctrl_w) +ADDRESS_MAP_END + + + +/************************************* + * + * Port definition + * + *************************************/ + +static INPUT_PORTS_START( dorachan ) + PORT_START + PORT_BIT( 0xff, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(dorachan_protection_r, 0) + + PORT_START + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_START1 ) + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START2 ) + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL + 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_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) + PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) + PORT_DIPSETTING( 0x00, DEF_STR( On ) ) + + PORT_START + PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_COCKTAIL + PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_COCKTAIL + PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_COCKTAIL + PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_COCKTAIL + PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) + PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) + PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) + PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) + + PORT_START + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(dorachan_v128_r, 0) + PORT_BIT( 0xfe, IP_ACTIVE_LOW, IPT_UNUSED ) +INPUT_PORTS_END + + + +/************************************* + * + * Machine driver + * + *************************************/ + +static MACHINE_DRIVER_START( dorachan ) + + /* basic machine hardware */ + MDRV_CPU_ADD(Z80, 2000000) + MDRV_CPU_PROGRAM_MAP(dorachan_map,0) + MDRV_CPU_IO_MAP(dorachan_io_map,0) + MDRV_CPU_VBLANK_INT(irq0_line_hold,2) + + /* video hardware */ + MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER) + MDRV_VIDEO_UPDATE(dorachan) + + MDRV_SCREEN_ADD("main", 0) + MDRV_SCREEN_FORMAT(BITMAP_FORMAT_RGB32) + MDRV_SCREEN_SIZE(32*8, 32*8) + MDRV_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 1*8, 31*8-1) + MDRV_SCREEN_REFRESH_RATE(60) + +MACHINE_DRIVER_END + + + +/************************************* + * + * ROM definition + * + *************************************/ + +ROM_START( dorachan ) + ROM_REGION( 0x10000, REGION_CPU1, 0 ) + ROM_LOAD( "c1.e1", 0x0000, 0x0400, CRC(29d66a96) SHA1(a0297d87574af65c6ded99aeb377ac407f6f163f) ) + ROM_LOAD( "d2.e2", 0x0400, 0x0400, CRC(144b6cd1) SHA1(195ce86e912a4b395097008c6d812fd75a1a2482) ) + ROM_LOAD( "d3.e3", 0x0800, 0x0400, CRC(a9a1bed7) SHA1(98af6f851c4477f770b6bd67e5465b5a271311ee) ) + ROM_LOAD( "d4.e5", 0x0c00, 0x0400, CRC(099ddf4b) SHA1(e4dd2b17a4320615204c66c24f60e58db13a5319) ) + ROM_LOAD( "c5.e6", 0x1000, 0x0400, CRC(49449dab) SHA1(3627c16cc17fae9de2294a37602b726e107d0a13) ) + ROM_LOAD( "d6.e7", 0x1400, 0x0400, CRC(5e409680) SHA1(f5e4d820c0f0493d724cd0d3da1113bccc09c2c3) ) + ROM_LOAD( "c7.e8", 0x2000, 0x0400, CRC(b331a5ff) SHA1(1053953c76dddff450b9c9037e7797d50f9c7046) ) + ROM_LOAD( "d8.rom", 0x6000, 0x0400, CRC(5fe1e731) SHA1(8e5dcb5f8d1d6f8c06808dd808f8bce7b07014ee) ) + ROM_LOAD( "d9.rom", 0x6400, 0x0400, CRC(338881a8) SHA1(cd725b42c3f96826e94345698738f6b5a532d3d5) ) + ROM_LOAD( "d10.rom", 0x6800, 0x0400, CRC(f8c59517) SHA1(655a976b1221e5aff69e0c0cc58d02c0b7bb6197) ) + ROM_LOAD( "d11.rom", 0x6c00, 0x0400, CRC(c2e0f066) SHA1(be6b780a8957d945e5634ac9689b440a41e9a2a4) ) + ROM_LOAD( "d12.rom", 0x7000, 0x0400, CRC(275e5dc1) SHA1(ac07db4b428daa49a52c679de95ddedbea0076b9) ) + ROM_LOAD( "d13.rom", 0x7400, 0x0400, CRC(24ccfcf9) SHA1(85e5052ee657f518b0509eb64e494bc3a74e651e) ) + + ROM_REGION( 0x0400, REGION_PROMS, 0 ) /* color map */ + ROM_LOAD( "d14.rom", 0x0000, 0x0400, CRC(c0d3ee84) SHA1(f2207c685ce8d5144a373c28f11d2cebf9518b65) ) +ROM_END + + + +/************************************* + * + * Game driver + * + *************************************/ + +GAME( 1980, dorachan, 0, dorachan, dorachan, 0, ROT270, "Craul Denshi", "Dorachan", GAME_NO_SOUND) |