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Diffstat (limited to 'src/mame/drivers/minivadr.c')
-rw-r--r--src/mame/drivers/minivadr.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/src/mame/drivers/minivadr.c b/src/mame/drivers/minivadr.c
new file mode 100644
index 00000000000..1219167d778
--- /dev/null
+++ b/src/mame/drivers/minivadr.c
@@ -0,0 +1,103 @@
+/***************************************************************************
+
+Minivader (Space Invaders's mini game)
+(c)1990 Taito Corporation
+
+Driver by Takahiro Nogi (nogi@kt.rim.or.jp) 1999/12/19 -
+
+This is a test board sold together with the cabinet (as required by law in
+Japan). It has no sound.
+
+***************************************************************************/
+
+#include "driver.h"
+#include "cpu/z80/z80.h"
+
+
+
+/*************************************
+ *
+ * Video update
+ *
+ *************************************/
+
+static VIDEO_UPDATE( minivadr )
+{
+ offs_t offs;
+
+ for (offs = 0; offs < videoram_size; offs++)
+ {
+ int i;
+
+ UINT8 x = offs << 3;
+ int y = offs >> 5;
+ UINT8 data = videoram[offs];
+
+ for (i = 0; i < 8; i++)
+ {
+ pen_t pen = (data & 0x80) ? RGB_WHITE : RGB_BLACK;
+ *BITMAP_ADDR32(bitmap, y, x) = pen;
+
+ data = data << 1;
+ x = x + 1;
+ }
+ }
+
+ return 0;
+}
+
+
+static ADDRESS_MAP_START( minivadr_map, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x1fff) AM_ROM
+ AM_RANGE(0xa000, 0xbfff) AM_RAM AM_BASE(&videoram) AM_SIZE(&videoram_size)
+ AM_RANGE(0xe008, 0xe008) AM_READWRITE(input_port_0_r, MWA8_NOP) // W - ???
+ADDRESS_MAP_END
+
+
+static INPUT_PORTS_START( minivadr )
+ PORT_START
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 )
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN1 )
+ 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 MACHINE_DRIVER_START( minivadr )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(Z80,24000000 / 6) /* 4 MHz ? */
+ MDRV_CPU_PROGRAM_MAP(minivadr_map,0)
+ 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_RGB32)
+ MDRV_SCREEN_SIZE(256, 256)
+ MDRV_SCREEN_VISIBLE_AREA(0, 256-1, 16, 240-1)
+ MDRV_VIDEO_UPDATE(minivadr)
+
+ /* the board has no sound hardware */
+MACHINE_DRIVER_END
+
+
+/***************************************************************************
+
+ Game driver(s)
+
+***************************************************************************/
+
+ROM_START( minivadr )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "d26-01.bin", 0x0000, 0x2000, CRC(a96c823d) SHA1(aa9969ff80e94b0fff0f3530863f6b300510162e) )
+ROM_END
+
+
+GAME( 1990, minivadr, 0, minivadr, minivadr, 0, ROT0, "Taito Corporation", "Minivader", GAME_SUPPORTS_SAVE )