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Diffstat (limited to 'src/mame/drivers/looping.c')
-rw-r--r--src/mame/drivers/looping.c796
1 files changed, 796 insertions, 0 deletions
diff --git a/src/mame/drivers/looping.c b/src/mame/drivers/looping.c
new file mode 100644
index 00000000000..53ebe26eeeb
--- /dev/null
+++ b/src/mame/drivers/looping.c
@@ -0,0 +1,796 @@
+/*
+To Do:
+- get sound working
+- map and test any remaining input ports
+
+Looping
+(C)1981 Venture Line
+
+ Main CPU
+ TMS9995
+
+ COP420 Microcontroller
+ manages CPU communnication?
+
+ Sound CPU
+ TMS9980
+ AY-3-8910
+ TMS5220 (SPEECH)
+
+---------------------------------------------------------------
+
+Sky Bumper
+(C)1982 Venture Line
+
+ This is a ROM swap for Looping. There are two 6116's on
+ the CPU board, where there is only one on Looping.
+
+===============================================================
+
+LOOPING CHIP PLACEMENT
+
+THERE ARE AT LEAST TWO VERSIONS OF THIS GAME
+VERSION NUMBERS FOR THIS PURPOSE ARE CHOSEN AT RANDOM
+
+IC NAME POSITION BOARD TYPE IC NAME POSITION TYPE
+VER-1 VER-2
+---------------------------------------------------------------
+LOS-2-7 13A I/O 2532 SAME 13A 2532
+LOS-1-1-2 11A " " SAME 11A "
+LOS-3-1 13C " " I-O-V2 13C "
+
+VLI1 2A ROM 2764 VLI-7-1 2A "
+VLI3 5A " " VLI-7-2 4A "
+VLI9-5 8A " " VLI-4-3 5A "
+L056-6 9A " " VLI-8-4 7A "
+ " LO56-5 8A "
+ " LO56-6 9A "
+ " VLI-8-7 10A "
+ ON RIBBON CABLE 18S030 11B color prom?
+ REAR BD LOG.1-9-3 6A 2716 tiles
+ LOG.3 8A " tiles
+*/
+
+#include "driver.h"
+#include "sound/ay8910.h"
+#include "sound/dac.h"
+#include "sound/5220intf.h"
+#include "video/resnet.h"
+
+
+/*************************************
+ *
+ * Constants
+ *
+ *************************************/
+
+#define MAIN_CPU_CLOCK (12000000)
+#define SOUND_CLOCK (8000000)
+#define COP_CLOCK (1000000) /* unknown */
+#define TMS_CLOCK (640000)
+
+/* the schematics are very blurry here and don't actually specify the clock */
+/* values; however, everything else about the sync chain implies the standard */
+/* 18.432MHz master clock, like is used in similar hardware of the time */
+#define MASTER_CLOCK (18432000)
+
+#define PIXEL_CLOCK (MASTER_CLOCK/3)
+
+#define HTOTAL (384)
+#define HBEND (0)
+#define HBSTART (256)
+
+#define VTOTAL (264)
+#define VBEND (16)
+#define VBSTART (224+16)
+
+
+
+/*************************************
+ *
+ * Type definitions
+ *
+ *************************************/
+
+typedef struct _looping_state looping_state;
+struct _looping_state
+{
+ /* memory pointers */
+ UINT8 * videoram;
+ UINT8 * colorram;
+ UINT8 * spriteram;
+
+ /* tilemaps */
+ tilemap * bg_tilemap;
+
+ /* sound state */
+ UINT8 sound[8];
+};
+
+
+
+/*************************************
+ *
+ * Palette conversion
+ *
+ *************************************/
+
+static PALETTE_INIT( looping )
+{
+ static const int resistances[3] = { 1000, 470, 220 };
+ double rweights[3], gweights[3], bweights[2];
+ int i;
+
+ /* compute the color output resistor weights */
+ compute_resistor_weights(0, 255, -1.0,
+ 3, &resistances[0], rweights, 470, 0,
+ 3, &resistances[0], gweights, 470, 0,
+ 2, &resistances[1], bweights, 470, 0);
+
+ /* initialize the palette with these colors */
+ for (i = 0; i < 32; i++)
+ {
+ int bit0, bit1, bit2, r, g, b;
+
+ /* red component */
+ bit0 = (color_prom[i] >> 0) & 1;
+ bit1 = (color_prom[i] >> 1) & 1;
+ bit2 = (color_prom[i] >> 2) & 1;
+ r = combine_3_weights(rweights, bit0, bit1, bit2);
+
+ /* green component */
+ bit0 = (color_prom[i] >> 3) & 1;
+ bit1 = (color_prom[i] >> 4) & 1;
+ bit2 = (color_prom[i] >> 5) & 1;
+ g = combine_3_weights(gweights, bit0, bit1, bit2);
+
+ /* blue component */
+ bit0 = (color_prom[i] >> 6) & 1;
+ bit1 = (color_prom[i] >> 7) & 1;
+ b = combine_2_weights(bweights, bit0, bit1);
+
+ palette_set_color(machine, i, MAKE_RGB(r, g, b));
+ }
+}
+
+
+
+/*************************************
+ *
+ * Video startup/tilemap config
+ *
+ *************************************/
+
+static TILE_GET_INFO( get_tile_info )
+{
+ looping_state *state = machine->driver_data;
+ int tile_number = state->videoram[tile_index];
+ int color = state->colorram[(tile_index & 0x1f) * 2 + 1] & 0x07;
+ SET_TILE_INFO(0, tile_number, color, 0);
+}
+
+
+static VIDEO_START( looping )
+{
+ looping_state *state = machine->driver_data;
+
+ state->bg_tilemap = tilemap_create(get_tile_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8,8, 32,32);
+
+ tilemap_set_scroll_cols(state->bg_tilemap, 0x20);
+}
+
+
+
+/*************************************
+ *
+ * Video write handlers
+ *
+ *************************************/
+
+static WRITE8_HANDLER( flip_screen_x_w )
+{
+ looping_state *state = Machine->driver_data;
+ flip_screen_x_set(~data & 0x01);
+ tilemap_set_scrollx(state->bg_tilemap, 0, flip_screen ? 128 : 0);
+}
+
+
+static WRITE8_HANDLER( flip_screen_y_w )
+{
+ looping_state *state = Machine->driver_data;
+ flip_screen_y_set(~data & 0x01);
+ tilemap_set_scrollx(state->bg_tilemap, 0, flip_screen ? 128 : 0);
+}
+
+
+static WRITE8_HANDLER( looping_videoram_w )
+{
+ looping_state *state = Machine->driver_data;
+ state->videoram[offset] = data;
+ tilemap_mark_tile_dirty(state->bg_tilemap, offset);
+}
+
+
+static WRITE8_HANDLER( looping_colorram_w )
+{
+ looping_state *state = Machine->driver_data;
+ int i;
+
+ state->colorram[offset] = data;
+
+ /* odd bytes are column color attribute */
+ if (offset & 1)
+ {
+ /* mark the whole column dirty */
+ offs_t offs = (offset/2);
+ for (i = 0; i < 0x20; i++)
+ tilemap_mark_tile_dirty(state->bg_tilemap, i * 0x20 + offs);
+ }
+
+ /* even bytes are column scroll */
+ else
+ tilemap_set_scrolly(state->bg_tilemap, offset/2, data);
+}
+
+
+
+/*************************************
+ *
+ * Video update
+ *
+ *************************************/
+
+static void draw_sprites(running_machine *machine, mame_bitmap *bitmap, const rectangle *cliprect)
+{
+ const UINT8 *source;
+ looping_state *state = machine->driver_data;
+
+ for (source = state->spriteram; source < state->spriteram + 0x40; source += 4)
+ {
+ int sx = source[3];
+ int sy = 240 - source[0];
+ int flipx = source[1] & 0x40;
+ int flipy = source[1] & 0x80;
+ int code = source[1] & 0x3f;
+ int color = source[2];
+
+ if (flip_screen_x)
+ {
+ sx = 240 - sx;
+ flipx = !flipx;
+ }
+
+ if (flip_screen_y)
+ {
+ sy = 240 - sy;
+ flipy = !flipy;
+ }
+
+ drawgfx(bitmap, machine->gfx[1], code, color, flipx, flipy, sx, sy, cliprect, TRANSPARENCY_PEN, 0);
+ }
+}
+
+
+static VIDEO_UPDATE( looping )
+{
+ looping_state *state = machine->driver_data;
+ tilemap_draw(bitmap, cliprect, state->bg_tilemap, 0, 0);
+
+ draw_sprites(machine, bitmap, cliprect);
+ return 0;
+}
+
+
+
+/*************************************
+ *
+ * Machine init/reset
+ *
+ *************************************/
+
+static MACHINE_START( looping )
+{
+ looping_state *state = machine->driver_data;
+ state_save_register_global_array(state->sound);
+}
+
+
+
+/*************************************
+ *
+ * Interrupt handling
+ *
+ *************************************/
+
+static INTERRUPT_GEN( looping_interrupt )
+{
+ cpunum_set_input_line_and_vector(0, 0, ASSERT_LINE, 4);
+}
+
+
+static WRITE8_HANDLER( level2_irq_set )
+{
+ if (!(data & 1))
+ cpunum_set_input_line_and_vector(0, 0, ASSERT_LINE, 4);
+}
+
+
+static WRITE8_HANDLER( main_irq_ack_w )
+{
+ if (data == 0)
+ cpunum_set_input_line(0, 0, CLEAR_LINE);
+}
+
+
+static WRITE8_HANDLER( looping_souint_clr )
+{
+ if (data == 0)
+ cpunum_set_input_line(1, 0, CLEAR_LINE);
+}
+
+
+static void looping_spcint(int state)
+{
+ cpunum_set_input_line_and_vector(1, 0, state, 6);
+}
+
+
+static WRITE8_HANDLER( looping_soundlatch_w )
+{
+ soundlatch_w(offset, data);
+ cpunum_set_input_line_and_vector(1, 0, ASSERT_LINE, 4);
+}
+
+
+
+/*************************************
+ *
+ * Custom DAC handling
+ *
+ *************************************/
+
+static WRITE8_HANDLER( looping_sound_sw )
+{
+ /* this can be improved by adding the missing signals for decay etc. (see schematics)
+
+ 0001 = ASOV
+ 0002 = AVOL2
+ 0003 = AVOL1
+ 0004 = ADECAY1
+ 0005 = ADECAY
+ 0006 = ASA
+ 0007 = AFA
+ */
+
+ looping_state *state = Machine->driver_data;
+ state->sound[offset + 1] = data ^ 1;
+ DAC_data_w(0, ((state->sound[2] << 7) + (state->sound[3] << 6)) * state->sound[7]);
+}
+
+
+
+/*************************************
+ *
+ * Sound controls
+ *
+ *************************************/
+
+static WRITE8_HANDLER( ay_enable_w )
+{
+ int output;
+
+ for (output = 0; output < 3; output++)
+ sndti_set_output_gain(SOUND_AY8910, 0, output, (data & 1) ? 1.0 : 0.0);
+}
+
+
+static WRITE8_HANDLER( speech_enable_w )
+{
+ sndti_set_output_gain(SOUND_TMS5220, 0, 0, (data & 1) ? 1.0 : 0.0);
+}
+
+
+static WRITE8_HANDLER( ballon_enable_w )
+{
+static int last;
+ if (last != data)
+ mame_printf_debug("ballon_enable_w = %d\n", data);
+ last = data;
+}
+
+
+
+/*************************************
+ *
+ * Misc I/O
+ *
+ *************************************/
+
+static WRITE8_HANDLER( out_0_w ) { mame_printf_debug("out0 = %02X\n", data); }
+static WRITE8_HANDLER( out_2_w ) { mame_printf_debug("out2 = %02X\n", data); }
+
+static READ8_HANDLER( adc_r ) { mame_printf_debug("%04X:ADC read\n", activecpu_get_pc()); return 0xff; }
+static WRITE8_HANDLER( adc_w ) { mame_printf_debug("%04X:ADC write = %02X\n", activecpu_get_pc(), data); }
+
+static WRITE8_HANDLER( plr2_w )
+{
+ /* set to 1 after IDLE, cleared to 0 during processing */
+ /* is this an LED on the PCB? */
+}
+
+
+
+/*************************************
+ *
+ * Protection
+ *
+ *************************************/
+
+static READ8_HANDLER( protection_r )
+{
+ /*
+ The code reads ($7002) ($7004) alternately
+ The result must change at least once every 10 reads
+ A read from ($34b0 + result) must == $01
+
+ Valid values:
+ $61 $67
+ $B7 $BF
+ $DB
+ $E1
+ $F3 $F7 $FD $FF
+
+ Because they read alternately from different locations,
+ it is trivial to bypass the protection.
+ */
+ if (offset == 2)
+ return 0xf3;
+ else
+ return 0xf7;
+}
+
+
+
+/*************************************
+ *
+ * Address maps
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( looping_map, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x7fff) AM_ROM
+
+ AM_RANGE(0x9000, 0x93ff) AM_READWRITE(MRA8_RAM, looping_videoram_w) AM_BASE_MEMBER(looping_state, videoram)
+
+ AM_RANGE(0x9800, 0x983f) AM_MIRROR(0x0700) AM_READWRITE(MRA8_RAM, looping_colorram_w) AM_BASE_MEMBER(looping_state, colorram)
+ AM_RANGE(0x9840, 0x987f) AM_MIRROR(0x0700) AM_RAM AM_BASE_MEMBER(looping_state, spriteram)
+ AM_RANGE(0x9880, 0x98ff) AM_MIRROR(0x0700) AM_RAM
+
+ AM_RANGE(0xb001, 0xb001) AM_MIRROR(0x07f8) AM_WRITE(level2_irq_set)
+ AM_RANGE(0xb006, 0xb006) AM_MIRROR(0x07f8) AM_WRITE(flip_screen_x_w)
+ AM_RANGE(0xb007, 0xb007) AM_MIRROR(0x07f8) AM_WRITE(flip_screen_y_w)
+
+ AM_RANGE(0xe000, 0xefff) AM_RAM
+ AM_RANGE(0xf800, 0xf800) AM_MIRROR(0x03fc) AM_READWRITE(input_port_0_r, out_0_w) /* /OUT0 */
+ AM_RANGE(0xf801, 0xf801) AM_MIRROR(0x03fc) AM_READWRITE(input_port_1_r, looping_soundlatch_w) /* /OUT1 */
+ AM_RANGE(0xf802, 0xf802) AM_MIRROR(0x03fc) AM_READWRITE(input_port_2_r, out_2_w) /* /OUT2 */
+ AM_RANGE(0xf803, 0xf803) AM_MIRROR(0x03fc) AM_READWRITE(adc_r, adc_w)
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( looping_io_map, ADDRESS_SPACE_IO, 8 )
+ /* 400 = A16 */
+ /* 401 = A17 */
+ /* 402 = COLOR 9 */
+ AM_RANGE(0x403, 0x403) AM_WRITE(plr2_w)
+ /* 404 = C0 */
+ /* 405 = C1 */
+ AM_RANGE(0x406, 0x406) AM_WRITE(main_irq_ack_w)
+ AM_RANGE(0x407, 0x407) AM_WRITE(watchdog_reset_w)
+
+ AM_RANGE(0x10000, 0x10000) AM_NOP /* external IDLE signal -- we can ignore it */
+ADDRESS_MAP_END
+
+
+/* complete memory map derived from schematics */
+static ADDRESS_MAP_START( looping_sound_map, ADDRESS_SPACE_PROGRAM, 8 )
+ ADDRESS_MAP_FLAGS( AMEF_ABITS(14) )
+ AM_RANGE(0x0000, 0x37ff) AM_ROM
+ AM_RANGE(0x3800, 0x3bff) AM_RAM
+ AM_RANGE(0x3c00, 0x3c00) AM_MIRROR(0x00f4) AM_READWRITE(AY8910_read_port_0_r, AY8910_control_port_0_w)
+ AM_RANGE(0x3c02, 0x3c02) AM_MIRROR(0x00f4) AM_READWRITE(MRA8_NOP, AY8910_write_port_0_w)
+ AM_RANGE(0x3c03, 0x3c03) AM_MIRROR(0x00f6) AM_NOP
+ AM_RANGE(0x3e00, 0x3e00) AM_MIRROR(0x00f4) AM_READWRITE(MRA8_NOP, tms5220_data_w)
+ AM_RANGE(0x3e02, 0x3e02) AM_MIRROR(0x00f4) AM_READWRITE(tms5220_status_r, MWA8_NOP)
+ AM_RANGE(0x3e03, 0x3e03) AM_MIRROR(0x00f6) AM_NOP
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( looping_sound_io_map, ADDRESS_SPACE_IO, 8 )
+ AM_RANGE(0x000, 0x000) AM_WRITE(looping_souint_clr)
+ AM_RANGE(0x001, 0x007) AM_WRITE(looping_sound_sw)
+ AM_RANGE(0x008, 0x008) AM_WRITE(ay_enable_w)
+ AM_RANGE(0x009, 0x009) AM_WRITE(speech_enable_w)
+ AM_RANGE(0x00a, 0x00a) AM_WRITE(ballon_enable_w)
+ADDRESS_MAP_END
+
+
+/* standard COP420 map */
+static ADDRESS_MAP_START( looping_cop_map, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x03ff) AM_ROM
+ADDRESS_MAP_END
+
+static ADDRESS_MAP_START( looping_cop_data_map, ADDRESS_SPACE_DATA, 8 )
+ AM_RANGE(0x0000, 0x003f) AM_RAM
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Graphics definitions
+ *
+ *************************************/
+
+static const gfx_layout sprite_layout =
+{
+ 16,16,
+ RGN_FRAC(1,2),
+ 2,
+ { RGN_FRAC(1,2), RGN_FRAC(0,2) },
+ { STEP8(0,1), STEP8(64,1) },
+ { STEP8(0,8), STEP8(128,8) },
+ 8*8*4
+};
+
+
+static GFXDECODE_START( looping )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, gfx_8x8x2_planar, 0, 8 )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, sprite_layout, 0, 8 )
+GFXDECODE_END
+
+
+
+/*************************************
+ *
+ * Sound interfaces
+ *
+ *************************************/
+
+static struct TMS5220interface tms5220_interface =
+{
+ looping_spcint
+};
+
+static struct AY8910interface ay8910_interface =
+{
+ soundlatch_r
+};
+
+
+
+/*************************************
+ *
+ * Machine drivers
+ *
+ *************************************/
+
+static MACHINE_DRIVER_START( looping )
+ MDRV_DRIVER_DATA(looping_state)
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(TMS9995, MAIN_CPU_CLOCK)
+ MDRV_CPU_PROGRAM_MAP(looping_map,0)
+ MDRV_CPU_IO_MAP(looping_io_map,0)
+ MDRV_CPU_VBLANK_INT(looping_interrupt,1)
+
+ MDRV_CPU_ADD(TMS9980, SOUND_CLOCK/4)
+ MDRV_CPU_PROGRAM_MAP(looping_sound_map,0)
+ MDRV_CPU_IO_MAP(looping_sound_io_map,0)
+
+ MDRV_CPU_ADD(COP420, COP_CLOCK)
+ MDRV_CPU_PROGRAM_MAP(looping_cop_map,0)
+ MDRV_CPU_DATA_MAP(looping_cop_data_map,0)
+
+ MDRV_MACHINE_START(looping)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MDRV_SCREEN_RAW_PARAMS(PIXEL_CLOCK, HTOTAL, HBEND, HBSTART, VTOTAL, VBEND, VBSTART)
+ MDRV_GFXDECODE(looping)
+ MDRV_PALETTE_LENGTH(32)
+
+ MDRV_PALETTE_INIT(looping)
+ MDRV_VIDEO_START(looping)
+ MDRV_VIDEO_UPDATE(looping)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(AY8910, SOUND_CLOCK/4)
+ MDRV_SOUND_CONFIG(ay8910_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.20)
+
+ MDRV_SOUND_ADD(TMS5220, TMS_CLOCK)
+ MDRV_SOUND_CONFIG(tms5220_interface)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
+
+ MDRV_SOUND_ADD(DAC, 0)
+ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
+MACHINE_DRIVER_END
+
+
+
+/*************************************
+ *
+ * Input ports
+ *
+ *************************************/
+
+static INPUT_PORTS_START( looping )
+ PORT_START_TAG("IN0")
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP )
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN )
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("P1 Shoot")
+ PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("P1 Accelerate?")
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 )
+
+ PORT_START_TAG("IN1") /* cocktail? */
+ PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_COCKTAIL
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_COCKTAIL
+ PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL
+ PORT_BIT( 0x18, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL
+ PORT_BIT( 0xc0, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START_TAG("DSW0")
+ PORT_DIPNAME( 0x01, 0x01, DEF_STR( Coin_B ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
+ PORT_DIPSETTING( 0x01, DEF_STR( 1C_1C ) )
+ PORT_DIPNAME( 0x0e, 0x02, DEF_STR( Coin_A ) )
+ PORT_DIPSETTING( 0x02, DEF_STR( 1C_1C ) )
+ PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) )
+ PORT_DIPSETTING( 0x06, DEF_STR( 1C_3C ) )
+ PORT_DIPSETTING( 0x08, DEF_STR( 1C_4C ) )
+ PORT_DIPSETTING( 0x0a, DEF_STR( 1C_5C ) )
+ PORT_DIPSETTING( 0x0c, DEF_STR( 1C_6C ) )
+ PORT_DIPSETTING( 0x0e, DEF_STR( 1C_7C ) )
+ PORT_DIPSETTING( 0x00, "1 Coin/10 Credits" )
+ PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) // Check code at 0x2c00
+ PORT_DIPSETTING( 0x00, DEF_STR( No ) )
+ PORT_DIPSETTING( 0x10, DEF_STR( Yes ) )
+ PORT_DIPNAME( 0x20, 0x00, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x00, "3" )
+ PORT_DIPSETTING( 0x20, "5" )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_DIPNAME( 0x80, 0x80, DEF_STR( Cabinet ) )
+ PORT_DIPSETTING( 0x80, DEF_STR( Upright ) )
+ PORT_DIPSETTING( 0x00, DEF_STR( Cocktail ) )
+INPUT_PORTS_END
+
+/* Same as 'looping' but additional "Infinite Lives" Dip Switch */
+static INPUT_PORTS_START( skybump )
+ PORT_INCLUDE(looping)
+
+ PORT_MODIFY("DSW0")
+ PORT_DIPNAME( 0x60, 0x40, DEF_STR( Lives ) )
+ PORT_DIPSETTING( 0x40, "3" )
+ PORT_DIPSETTING( 0x60, "5" )
+ PORT_DIPSETTING( 0x00, "Infinite (Cheat)")
+// PORT_DIPSETTING( 0x20, "Infinite (Cheat)")
+INPUT_PORTS_END
+
+
+
+/*************************************
+ *
+ * ROM definitions
+ *
+ *************************************/
+
+ROM_START( looping )
+ ROM_REGION( 0x8000, REGION_CPU1, 0 ) /* TMS9995 code */
+ ROM_LOAD( "vli3.5a", 0x0000, 0x2000, CRC(1ac3ccdf) SHA1(9d1cde8bd4d0f12eaf06225b3ecc4a5c3e4f0c11) )
+ ROM_LOAD( "vli1.2a", 0x2000, 0x2000, CRC(97755fd4) SHA1(4a6ef02b0128cd516ff95083a7caaad8f3756f09) )
+ ROM_LOAD( "l056-6.9a", 0x4000, 0x2000, CRC(548afa52) SHA1(0b88ac7394feede023519c585a4084591eb9661a) )
+ ROM_LOAD( "vli9-5.8a", 0x6000, 0x2000, CRC(5d122f86) SHA1(d1c66b890142bb4d4648f3edec6567f58107dbf0) )
+
+ ROM_REGION( 0x3800, REGION_CPU2, 0 ) /* TMS9980 code */
+ ROM_LOAD( "i-o.13c", 0x0000, 0x0800, CRC(21e9350c) SHA1(f30a180309e373a17569351944f5e7982c3b3f9d) )
+ ROM_LOAD( "i-o.13a", 0x0800, 0x1000, CRC(1de29f25) SHA1(535acb132266d6137b0610ee9a9b946459ae44af) )
+ ROM_LOAD( "i-o.11a", 0x2800, 0x1000, CRC(61c74c79) SHA1(9f34d18a919446dd76857b851cea23fc1526f3c2) ) /* speech */
+
+ ROM_REGION( 0x1000, REGION_CPU3, 0 ) /* COP420 microcontroller code */
+ ROM_LOAD( "cop.bin", 0x0000, 0x1000, CRC(bbfd26d5) SHA1(5f78b32b6e7c003841ef5b635084db2cdfebf0e1) )
+
+ ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "log2.8a", 0x0000, 0x800, CRC(ef3284ac) SHA1(8719c9df8c972a56c306b3c707aaa53092ffa2d6) )
+ ROM_LOAD( "log1-9-3.6a", 0x0800, 0x800, CRC(c434c14c) SHA1(3669aaf7adc6b250378bcf62eb8e7058f55476ef) )
+
+ ROM_REGION( 0x0020, REGION_PROMS, 0 ) /* color prom */
+ ROM_LOAD( "18s030.11b", 0x0000, 0x0020, CRC(6a0c7d87) SHA1(140335d85c67c75b65689d4e76d29863c209cf32) )
+ROM_END
+
+ROM_START( loopinga )
+ ROM_REGION( 0x8000, REGION_CPU1, 0 ) /* TMS9995 code */
+ ROM_LOAD( "vli3.5a", 0x0000, 0x2000, CRC(1ac3ccdf) SHA1(9d1cde8bd4d0f12eaf06225b3ecc4a5c3e4f0c11) )
+ ROM_LOAD( "vli-4-3", 0x2000, 0x1000, CRC(f32cae2b) SHA1(2c6ef82af438e588b56fd58b95cf969c97bb9a66) )
+ ROM_LOAD( "vli-8-4", 0x3000, 0x1000, CRC(611e1dbf) SHA1(0ab6669f1dec30c3f7bca49e158e4790a78fa308) )
+ ROM_LOAD( "l056-6.9a", 0x4000, 0x2000, CRC(548afa52) SHA1(0b88ac7394feede023519c585a4084591eb9661a) )
+ ROM_LOAD( "vli9-5.8a", 0x6000, 0x2000, CRC(5d122f86) SHA1(d1c66b890142bb4d4648f3edec6567f58107dbf0) )
+
+ ROM_REGION( 0x3800, REGION_CPU2, 0 ) /* TMS9980 code */
+ ROM_LOAD( "i-o-v2.13c", 0x0000, 0x0800, CRC(09765ebe) SHA1(93b035c3a94f2f6d5e463256e26b600a4dd5d3ea) )
+ ROM_LOAD( "i-o.13a", 0x0800, 0x1000, CRC(1de29f25) SHA1(535acb132266d6137b0610ee9a9b946459ae44af) ) /* speech */
+ ROM_LOAD( "i-o.11a", 0x2800, 0x1000, CRC(61c74c79) SHA1(9f34d18a919446dd76857b851cea23fc1526f3c2) )
+
+ ROM_REGION( 0x1000, REGION_CPU3, 0 ) /* COP420 microcontroller code */
+ ROM_LOAD( "cop.bin", 0x0000, 0x1000, CRC(bbfd26d5) SHA1(5f78b32b6e7c003841ef5b635084db2cdfebf0e1) )
+
+ ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "log2.8a", 0x0000, 0x800, CRC(ef3284ac) SHA1(8719c9df8c972a56c306b3c707aaa53092ffa2d6) )
+ ROM_LOAD( "log1-9-3.6a", 0x0800, 0x800, CRC(c434c14c) SHA1(3669aaf7adc6b250378bcf62eb8e7058f55476ef) )
+
+ ROM_REGION( 0x0020, REGION_PROMS, 0 ) /* color prom */
+ ROM_LOAD( "18s030.11b", 0x0000, 0x0020, CRC(6a0c7d87) SHA1(140335d85c67c75b65689d4e76d29863c209cf32) )
+ROM_END
+
+ROM_START( skybump )
+ ROM_REGION( 0x8000, REGION_CPU1, 0 ) /* TMS9995 code */
+ ROM_LOAD( "cpu.5a", 0x0000, 0x2000, CRC(dca38df0) SHA1(86abe04cbabf81399f842f53668fe7a3f7ed3757) )
+ ROM_LOAD( "cpu.2a", 0x2000, 0x2000, CRC(6bcc211a) SHA1(245ebae3934df9c3920743a941546d96bb2e7c03) )
+ ROM_LOAD( "cpu.9a", 0x4000, 0x2000, CRC(c7a50797) SHA1(60aa0a28ba970f12d0a0e538ae1c6807d105855c) )
+ ROM_LOAD( "cpu.8a", 0x6000, 0x2000, CRC(a718c6f2) SHA1(19afa8c353829232cb96c27b87f13b43166ab6fc) )
+
+ ROM_REGION( 0x3800, REGION_CPU2, 0 ) /* TMS9980 code */
+ ROM_LOAD( "snd.13c", 0x0000, 0x0800, CRC(21e9350c) SHA1(f30a180309e373a17569351944f5e7982c3b3f9d) )
+ ROM_LOAD( "snd.13a", 0x0800, 0x1000, CRC(1de29f25) SHA1(535acb132266d6137b0610ee9a9b946459ae44af) )
+ ROM_LOAD( "snd.11a", 0x2800, 0x1000, CRC(61c74c79) SHA1(9f34d18a919446dd76857b851cea23fc1526f3c2) )
+
+ ROM_REGION( 0x1000, REGION_CPU3, 0 ) /* COP420 microcontroller code */
+ ROM_LOAD( "cop.bin", 0x0000, 0x1000, CRC(bbfd26d5) SHA1(5f78b32b6e7c003841ef5b635084db2cdfebf0e1) )
+
+ ROM_REGION( 0x1000, REGION_GFX1, ROMREGION_DISPOSE )
+ ROM_LOAD( "vid.8a", 0x0000, 0x800, CRC(459ccc55) SHA1(747f6789605b48be9e22f779f9e3f6c98ad4e594) )
+ ROM_LOAD( "vid.6a", 0x0800, 0x800, CRC(12ebbe74) SHA1(0f87c81a45d1bf3b8c6a70ee5e1a014069f67755) )
+
+ ROM_REGION( 0x0020, REGION_PROMS, 0 ) /* color prom */
+ ROM_LOAD( "vid.clr", 0x0000, 0x0020, CRC(6a0c7d87) SHA1(140335d85c67c75b65689d4e76d29863c209cf32) )
+ROM_END
+
+
+
+/*************************************
+ *
+ * Driver config
+ *
+ *************************************/
+
+static DRIVER_INIT( looping )
+{
+ int length = memory_region_length(REGION_CPU1);
+ UINT8 *rom = memory_region(REGION_CPU1);
+ int i;
+
+ /* bitswap the TMS9995 ROMs */
+ for (i = 0; i < length; i++)
+ rom[i] = BITSWAP8(rom[i], 0,1,2,3,4,5,6,7);
+
+ /* install protection handlers */
+ memory_install_read8_handler(0, ADDRESS_SPACE_PROGRAM, 0x7000, 0x7007, 0, 0, protection_r);
+}
+
+
+
+/*************************************
+ *
+ * Game drivers
+ *
+ *************************************/
+
+GAME( 1982, looping, 0, looping, looping, looping, ROT90, "Venture Line", "Looping (set 1)", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE )
+GAME( 1982, loopinga, looping, looping, looping, looping, ROT90, "Venture Line", "Looping (set 2)", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE )
+GAME( 1982, skybump, 0, looping, skybump, looping, ROT90, "Venture Line", "Sky Bumper", GAME_IMPERFECT_SOUND | GAME_SUPPORTS_SAVE )
+