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path: root/src/mame/drivers/sprint8.c
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Diffstat (limited to 'src/mame/drivers/sprint8.c')
-rw-r--r--src/mame/drivers/sprint8.c591
1 files changed, 591 insertions, 0 deletions
diff --git a/src/mame/drivers/sprint8.c b/src/mame/drivers/sprint8.c
new file mode 100644
index 00000000000..4cc93543c64
--- /dev/null
+++ b/src/mame/drivers/sprint8.c
@@ -0,0 +1,591 @@
+/***************************************************************************
+
+Atari Sprint 8 driver
+
+***************************************************************************/
+
+#include "driver.h"
+#include "includes/sprint8.h"
+
+static int steer_dir[8];
+static int steer_flag[8];
+
+static int collision_reset;
+static int collision_index;
+
+
+void sprint8_set_collision(int n)
+{
+ if (collision_reset == 0)
+ {
+ cpunum_set_input_line(0, 0, ASSERT_LINE);
+
+ collision_index = n;
+ }
+}
+
+
+static TIMER_CALLBACK( input_callback )
+{
+ static UINT8 dial[8];
+
+ int i;
+
+ for (i = 0; i < 8; i++)
+ {
+ UINT8 val = readinputport(8 + i) >> 4;
+
+ signed char delta = (val - dial[i]) & 15;
+
+ if (delta & 8)
+ {
+ delta |= 0xf0; /* extend sign to 8 bits */
+ }
+
+ steer_flag[i] = (delta != 0);
+
+ if (delta > 0)
+ {
+ steer_dir[i] = 0;
+ }
+ if (delta < 0)
+ {
+ steer_dir[i] = 1;
+ }
+
+ dial[i] = val;
+ }
+}
+
+
+static void fill_palette(running_machine *machine, int team)
+{
+ int i;
+
+ for (i = 0; i < 16; i += 8)
+ {
+ if (team)
+ {
+ palette_set_color(machine, i + 0, MAKE_RGB(0xff, 0x00, 0x00)); /* red */
+ palette_set_color(machine, i + 1, MAKE_RGB(0x00, 0x00, 0xff)); /* blue */
+ palette_set_color(machine, i + 2, MAKE_RGB(0xff, 0x00, 0x00)); /* red */
+ palette_set_color(machine, i + 3, MAKE_RGB(0x00, 0x00, 0xff)); /* blue */
+ palette_set_color(machine, i + 4, MAKE_RGB(0xff, 0x00, 0x00)); /* red */
+ palette_set_color(machine, i + 5, MAKE_RGB(0x00, 0x00, 0xff)); /* blue */
+ palette_set_color(machine, i + 6, MAKE_RGB(0xff, 0x00, 0x00)); /* red */
+ palette_set_color(machine, i + 7, MAKE_RGB(0x00, 0x00, 0xff)); /* blue */
+ }
+ else
+ {
+ palette_set_color(machine, i + 0, MAKE_RGB(0xff, 0x00, 0x00)); /* red */
+ palette_set_color(machine, i + 1, MAKE_RGB(0x00, 0x00, 0xff)); /* blue */
+ palette_set_color(machine, i + 2, MAKE_RGB(0xff, 0xff, 0x00)); /* yellow */
+ palette_set_color(machine, i + 3, MAKE_RGB(0x00, 0xff, 0x00)); /* green */
+ palette_set_color(machine, i + 4, MAKE_RGB(0xff, 0x00, 0xff)); /* magenta */
+ palette_set_color(machine, i + 5, MAKE_RGB(0xe0, 0xc0, 0x70)); /* puce */
+ palette_set_color(machine, i + 6, MAKE_RGB(0x00, 0xff, 0xff)); /* cyan */
+ palette_set_color(machine, i + 7, MAKE_RGB(0xff, 0xaa, 0xaa)); /* pink */
+ }
+ }
+
+ palette_set_color(machine, 16, MAKE_RGB(0x00, 0x00, 0x00));
+ palette_set_color(machine, 17, MAKE_RGB(0xff, 0xff, 0xff));
+}
+
+
+static PALETTE_INIT( sprint8 )
+{
+ int i;
+
+ fill_palette(machine, 0);
+
+ for (i = 0; i < 16; i++)
+ {
+ colortable[2 * i + 0] = 16;
+ colortable[2 * i + 1] = i;
+ }
+
+ colortable[32] = 16;
+ colortable[33] = 16;
+ colortable[34] = 16;
+ colortable[35] = 17;
+}
+
+
+static MACHINE_RESET( sprint8 )
+{
+ collision_reset = 0;
+ collision_index = 0;
+
+ timer_pulse(video_screen_get_frame_period(0), 0, input_callback);
+}
+
+
+static READ8_HANDLER( sprint8_collision_r )
+{
+ return collision_index;
+}
+
+
+static READ8_HANDLER( sprint8_input_r )
+{
+ UINT8 val = readinputport(offset);
+
+ if (steer_dir[offset])
+ {
+ val |= 0x02;
+ }
+ if (steer_flag[offset])
+ {
+ val |= 0x04;
+ }
+
+ return val;
+}
+
+
+static WRITE8_HANDLER( sprint8_lockout_w )
+{
+ coin_lockout_w(offset, !(data & 1));
+}
+
+
+static WRITE8_HANDLER( sprint8_team_w )
+{
+ fill_palette(Machine, !(data & 1));
+}
+
+
+static WRITE8_HANDLER( sprint8_int_reset_w )
+{
+ collision_reset = !(data & 1);
+
+ if (collision_reset)
+ {
+ cpunum_set_input_line(0, 0, CLEAR_LINE);
+ }
+}
+
+
+/* names of sound effects taken from Tank 8, might differ for Sprint 8 */
+
+static WRITE8_HANDLER( sprint8_crash_w ) {}
+static WRITE8_HANDLER( sprint8_explosion_w ) {}
+static WRITE8_HANDLER( sprint8_bugle_w ) {}
+static WRITE8_HANDLER( sprint8_bug_w ) {}
+static WRITE8_HANDLER( sprint8_attract_w ) {}
+static WRITE8_HANDLER( sprint8_motor_w ) {}
+
+
+static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x00ff) AM_READ(MRA8_RAM)
+ AM_RANGE(0x1c00, 0x1c00) AM_READ(sprint8_collision_r)
+ AM_RANGE(0x1c01, 0x1c08) AM_READ(sprint8_input_r)
+ AM_RANGE(0x1c09, 0x1c09) AM_READ(input_port_16_r)
+ AM_RANGE(0x1c0a, 0x1c0a) AM_READ(input_port_17_r)
+ AM_RANGE(0x1c0f, 0x1c0f) AM_READ(input_port_18_r)
+ AM_RANGE(0x2000, 0x3fff) AM_READ(MRA8_ROM)
+ AM_RANGE(0xf800, 0xffff) AM_READ(MRA8_ROM)
+ADDRESS_MAP_END
+
+
+static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x00ff) AM_WRITE(MWA8_RAM)
+ AM_RANGE(0x1800, 0x1bff) AM_WRITE(sprint8_video_ram_w) AM_BASE(&sprint8_video_ram)
+ AM_RANGE(0x1c00, 0x1c0f) AM_WRITE(MWA8_RAM) AM_BASE(&sprint8_pos_h_ram)
+ AM_RANGE(0x1c10, 0x1c1f) AM_WRITE(MWA8_RAM) AM_BASE(&sprint8_pos_v_ram)
+ AM_RANGE(0x1c20, 0x1c2f) AM_WRITE(MWA8_RAM) AM_BASE(&sprint8_pos_d_ram)
+ AM_RANGE(0x1c30, 0x1c37) AM_WRITE(sprint8_lockout_w)
+ AM_RANGE(0x1d00, 0x1d00) AM_WRITE(sprint8_int_reset_w)
+ AM_RANGE(0x1d01, 0x1d01) AM_WRITE(sprint8_crash_w)
+ AM_RANGE(0x1d02, 0x1d02) AM_WRITE(sprint8_explosion_w)
+ AM_RANGE(0x1d03, 0x1d03) AM_WRITE(sprint8_bugle_w)
+ AM_RANGE(0x1d04, 0x1d04) AM_WRITE(sprint8_bug_w)
+ AM_RANGE(0x1d05, 0x1d05) AM_WRITE(sprint8_team_w)
+ AM_RANGE(0x1d06, 0x1d06) AM_WRITE(sprint8_attract_w)
+ AM_RANGE(0x1e00, 0x1e07) AM_WRITE(sprint8_motor_w)
+ AM_RANGE(0x1f00, 0x1f00) AM_WRITE(MWA8_NOP) /* probably a watchdog, disabled in service mode */
+ AM_RANGE(0x2000, 0x3fff) AM_WRITE(MWA8_ROM)
+ AM_RANGE(0xf800, 0xffff) AM_WRITE(MWA8_ROM)
+ADDRESS_MAP_END
+
+
+static INPUT_PORTS_START( sprint8 )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P1 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P1 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P2 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P2 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P3 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P3 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(3)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(3)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN4 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P4 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P4 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(4)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(4)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN5 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P5 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P5 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(5)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(5)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN6 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P6 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P6 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(6)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(6)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN7 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P7 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P7 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(7)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(7)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN8 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P8 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P8 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(8)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(8)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(1)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(2)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(3)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(4)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(5)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(6)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(7)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(8)
+
+ PORT_START
+ PORT_DIPNAME( 0x0f, 0x08, "Play Time" )
+ PORT_DIPSETTING( 0x0f, "60 seconds" )
+ PORT_DIPSETTING( 0x0e, "69 seconds" )
+ PORT_DIPSETTING( 0x0d, "77 seconds" )
+ PORT_DIPSETTING( 0x0c, "86 seconds" )
+ PORT_DIPSETTING( 0x0b, "95 seconds" )
+ PORT_DIPSETTING( 0x0a, "103 seconds" )
+ PORT_DIPSETTING( 0x09, "112 seconds" )
+ PORT_DIPSETTING( 0x08, "120 seconds" )
+ PORT_DIPSETTING( 0x07, "129 seconds" )
+ PORT_DIPSETTING( 0x06, "138 seconds" )
+ PORT_DIPSETTING( 0x05, "146 seconds" )
+ PORT_DIPSETTING( 0x04, "155 seconds" )
+ PORT_DIPSETTING( 0x03, "163 seconds" )
+ PORT_DIPSETTING( 0x02, "172 seconds" )
+ PORT_DIPSETTING( 0x01, "181 seconds" )
+ PORT_DIPSETTING( 0x00, "189 seconds" )
+ PORT_BIT ( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("Track Select") PORT_CODE(KEYCODE_SPACE)
+
+ PORT_START
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )
+
+INPUT_PORTS_END
+
+
+static INPUT_PORTS_START( sprint8p )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN1 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P1 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P1 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN2 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P2 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P2 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN3 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P3 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P3 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(3)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(3)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN4 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P4 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P4 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(4)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(4)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN5 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P5 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P5 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(5)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(5)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_SERVICE( 0x80, IP_ACTIVE_LOW )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN6 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P6 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P6 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(6)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(6)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN7 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P7 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P7 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(7)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(7)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT ( 0x01, IP_ACTIVE_LOW, IPT_COIN8 )
+ PORT_BIT ( 0x02, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER DIR P8 */
+ PORT_BIT ( 0x04, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* STEER FLAG P8 */
+ PORT_BIT ( 0x08, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(8)
+ PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(8)
+ PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x40, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(1)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(2)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(3)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(4)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(5)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(6)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(7)
+
+ PORT_START
+ PORT_BIT( 0xff, 0x00, IPT_DIAL ) PORT_SENSITIVITY(100) PORT_KEYDELTA(10) PORT_PLAYER(8)
+
+ PORT_START
+ PORT_DIPNAME( 0x03, 0x03, "Play Time" )
+ PORT_DIPSETTING( 0x00, "54 seconds" )
+ PORT_DIPSETTING( 0x01, "108 seconds" )
+ PORT_DIPSETTING( 0x03, "216 seconds" )
+ PORT_BIT ( 0xfc, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START
+ PORT_DIPNAME( 0x01, 0x01, "Play Mode" )
+ PORT_DIPSETTING( 0x00, "Chase" )
+ PORT_DIPSETTING( 0x01, "Tag" )
+
+ PORT_START
+ PORT_BIT ( 0x80, IP_ACTIVE_LOW, IPT_VBLANK )
+
+INPUT_PORTS_END
+
+
+static const gfx_layout tile_layout_1 =
+{
+ 16, 8,
+ 64,
+ 1,
+ { 0 },
+ {
+ 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0, 0
+ },
+ {
+ 0x000, 0x200, 0x400, 0x600, 0x800, 0xa00, 0xc00, 0xe00
+ },
+ 8
+};
+
+
+static const gfx_layout tile_layout_2 =
+{
+ 16, 8,
+ 64,
+ 1,
+ { 0 },
+ {
+ 0x000, 0x000, 0x200, 0x200, 0x400, 0x400, 0x600, 0x600,
+ 0x800, 0x800, 0xa00, 0xa00, 0xc00, 0xc00, 0xe00, 0xe00
+
+ },
+ {
+ 0, 1, 2, 3, 4, 5, 6, 7
+ },
+ 8
+};
+
+
+static const gfx_layout car_layout =
+{
+ 16, 8,
+ 8,
+ 1,
+ { 0 },
+ {
+ 0x07, 0x06, 0x05, 0x04, 0x0f, 0x0e, 0x0d, 0x0c,
+ 0x17, 0x16, 0x15, 0x14, 0x1f, 0x1e, 0x1d, 0x1c
+ },
+ {
+ 0x000, 0x020, 0x040, 0x060, 0x080, 0x0a0, 0x0c0, 0x0e0
+ },
+ 0x100
+};
+
+
+static GFXDECODE_START( sprint8 )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, tile_layout_1, 0, 18 )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, tile_layout_2, 0, 18 )
+ GFXDECODE_ENTRY( REGION_GFX2, 0, car_layout, 0, 16 )
+GFXDECODE_END
+
+
+static MACHINE_DRIVER_START( sprint8 )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(M6800, 11055000 / 11) /* ? */
+ MDRV_CPU_PROGRAM_MAP(readmem, writemem)
+
+ MDRV_SCREEN_REFRESH_RATE(60)
+ MDRV_MACHINE_RESET(sprint8)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ MDRV_SCREEN_SIZE(512, 261)
+ MDRV_SCREEN_VISIBLE_AREA(0, 495, 0, 231)
+ MDRV_GFXDECODE(sprint8)
+ MDRV_PALETTE_LENGTH(18)
+ MDRV_COLORTABLE_LENGTH(36)
+
+ MDRV_PALETTE_INIT(sprint8)
+ MDRV_VIDEO_START(sprint8)
+ MDRV_VIDEO_UPDATE(sprint8)
+ MDRV_VIDEO_EOF(sprint8)
+
+ /* sound hardware */
+MACHINE_DRIVER_END
+
+
+ROM_START( sprint8 )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD( "7313.j1", 0x2400, 0x0800, CRC(1231f944) SHA1(d16c76da6a74513eb40811d806e0dd009f6dcafb) )
+ ROM_LOAD( "7314.h1", 0x2c00, 0x0800, CRC(c77c0d49) SHA1(a57b5d340a41d02edb20fcb66875908110582bc5) )
+ ROM_RELOAD( 0xf800, 0x0800 )
+
+ ROM_REGION( 0x0200, REGION_GFX1, ROMREGION_DISPOSE ) /* tiles */
+ ROM_LOAD( "7315-01.n6", 0x0000, 0x0200, CRC(e2f603d0) SHA1(8d82b72d2f4039afa3341774000105a745caf85f) )
+
+ ROM_REGION( 0x0100, REGION_GFX2, ROMREGION_DISPOSE ) /* cars */
+ ROM_LOAD( "7316-01.j5", 0x0000, 0x0100, CRC(32c028e3) SHA1(bfa76cf0981640d08e9c7fb15da134afe46afe31) )
+ROM_END
+
+
+ROM_START( sprint8a )
+ ROM_REGION( 0x10000, REGION_CPU1, 0 )
+ ROM_LOAD_NIB_LOW ( "l2800s8", 0x2800, 0x0800, CRC(3926de69) SHA1(ec03d7684e393061d1d48ae73897e9dc38131c14) )
+ ROM_LOAD_NIB_HIGH( "m2800s8", 0x2800, 0x0800, CRC(d009d6da) SHA1(3210806b0eb344d88d2cbcc46895f7224771c1f2) )
+ ROM_LOAD_NIB_LOW ( "l3000s8", 0x3000, 0x0800, CRC(c78d9888) SHA1(a854b50b2cf0261c1f966ef1bd001084500b3545) )
+ ROM_LOAD_NIB_HIGH( "m3000s8", 0x3000, 0x0800, CRC(9ebfe8f8) SHA1(9709f697a7f9cce7ff4edbdccbaf14931328a052) )
+ ROM_LOAD_NIB_LOW ( "l3800s8", 0x3800, 0x0800, CRC(74a8f103) SHA1(0cc15006cbd4579feac0f07690f32b2b61f97ae9) )
+ ROM_RELOAD( 0xf800, 0x0800 )
+ ROM_LOAD_NIB_HIGH( "m3800s8", 0x3800, 0x0800, CRC(90aadc75) SHA1(34ca21c37573d9a2df92d3a1e73fdc0a9885c0a0) )
+ ROM_RELOAD( 0xf800, 0x0800 )
+
+ ROM_REGION( 0x0200, REGION_GFX1, ROMREGION_DISPOSE ) /* tiles */
+ ROM_LOAD( "s8.n6", 0x0000, 0x0200, CRC(92cf9a7e) SHA1(6bd2d396e0a299c2e731425cabd578d569c2061b) )
+
+ ROM_REGION( 0x0100, REGION_GFX2, ROMREGION_DISPOSE ) /* cars */
+ ROM_LOAD( "s8.j5", 0x0000, 0x0100, CRC(d37fff36) SHA1(20a7a8caf2fbfe22e307fe8541d31784c8e39d1a) )
+ROM_END
+
+
+GAME( 1977, sprint8, 0, sprint8, sprint8, 0, ROT0, "Atari", "Sprint 8", GAME_NO_SOUND )
+GAME( 1977, sprint8a, sprint8, sprint8, sprint8p, 0, ROT0, "Atari", "Sprint 8 (play tag & chase)", GAME_NO_SOUND )