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Diffstat (limited to 'src/mame/drivers/badlands.c')
-rw-r--r--src/mame/drivers/badlands.c537
1 files changed, 537 insertions, 0 deletions
diff --git a/src/mame/drivers/badlands.c b/src/mame/drivers/badlands.c
new file mode 100644
index 00000000000..9b7128e5b4a
--- /dev/null
+++ b/src/mame/drivers/badlands.c
@@ -0,0 +1,537 @@
+/***************************************************************************
+
+ Atari Bad Lands hardware
+
+ driver by Aaron Giles
+
+ Games supported:
+ * Bad Lands (1989)
+
+ Known bugs:
+ * none at this time
+
+****************************************************************************
+
+ Memory map
+
+****************************************************************************
+
+ ========================================================================
+ MAIN CPU
+ ========================================================================
+ 000000-03FFFF R xxxxxxxx xxxxxxxx Program ROM
+ FC0000 R -------x -------- Sound command buffer full
+ FC0000 W -------- -------- Sound CPU reset
+ FD0000-FD1FFF R/W -------- xxxxxxxx EEPROM
+ FE0000 W -------- -------- Watchdog reset
+ FE2000 W -------- -------- VBLANK IRQ acknowledge
+ FE4000 R -------- xxxx---- Switch inputs
+ R -------- x------- (Self test)
+ R -------- -x------ (VBLANK)
+ R -------- --x----- (Player 2 button)
+ R -------- ---x---- (Player 1 button)
+ FE6000 R -------- xxxxxxxx Player 1 steering
+ FE6002 R -------- xxxxxxxx Player 2 steering
+ FE6004 R -------- xxxxxxxx Player 1 pedal
+ FE6006 R -------- xxxxxxxx Player 2 pedal
+ FE8000 W xxxxxxxx -------- Sound command write
+ FEA000 R xxxxxxxx -------- Sound response read
+ FEC000 W -------- -------x Playfield tile bank select
+ FEE000 W -------- -------- EEPROM enable
+ FFC000-FFC0FF R/W xxxxxxxx xxxxxxxx Playfield palette RAM (128 entries)
+ R/W x------- -------- (RGB 1 LSB)
+ R/W -xxxxx-- -------- (Red 5 MSB)
+ R/W ------xx xxx----- (Green 5 MSB)
+ R/W -------- ---xxxxx (Blue 5 MSB)
+ FFC100-FFC1FF R/W xxxxxxxx xxxxxxxx Motion object palette RAM (128 entries)
+ FFC200-FFC3FF R/W xxxxxxxx xxxxxxxx Extra palette RAM (256 entries)
+ FFE000-FFEFFF R/W xxxxxxxx xxxxxxxx Playfield RAM (64x32 tiles)
+ R/W xxx----- -------- (Palette select)
+ R/W ---x---- -------- (Tile bank select)
+ R/W ----xxxx xxxxxxxx (Tile index)
+ FFF000-FFFFFF R/W xxxxxxxx xxxxxxxx Motion object RAM (32 entries x 4 words)
+ R/W ----xxxx xxxxxxxx (0: Tile index)
+ R/W xxxxxxxx x------- (1: Y position)
+ R/W -------- ----xxxx (1: Number of Y tiles - 1)
+ R/W xxxxxxxx x------- (3: X position)
+ R/W -------- ----x--- (3: Priority)
+ R/W -------- -----xxx (3: Palette select)
+ ========================================================================
+ Interrupts:
+ IRQ1 = VBLANK
+ IRQ2 = sound CPU communications
+ ========================================================================
+
+
+ ========================================================================
+ SOUND CPU (based on JSA II, but implemented onboard)
+ ========================================================================
+ 0000-1FFF R/W xxxxxxxx Program RAM
+ 2000-2001 R/W xxxxxxxx YM2151 communications
+ 2802 R xxxxxxxx Sound command read
+ 2804 R xxxx--xx Status input
+ R x------- (Self test)
+ R -x------ (Sound command buffer full)
+ R --x----- (Sound response buffer full)
+ R ---x---- (Self test)
+ R ------xx (Coin inputs)
+ 2806 R/W -------- IRQ acknowledge
+ 2A02 W xxxxxxxx Sound response write
+ 2A04 W xxxx---x Sound control
+ W xx------ (ROM bank select)
+ W --xx---- (Coin counters)
+ W -------x (YM2151 reset)
+ 3000-3FFF R xxxxxxxx Banked ROM
+ 4000-FFFF R xxxxxxxx Program ROM
+ ========================================================================
+ Interrupts:
+ IRQ = timed interrupt ORed with YM2151 interrupt
+ NMI = latch on sound command
+ ========================================================================
+
+****************************************************************************/
+
+
+#include "driver.h"
+#include "machine/atarigen.h"
+#include "badlands.h"
+#include "sound/2151intf.h"
+
+
+
+/*************************************
+ *
+ * Statics
+ *
+ *************************************/
+
+static UINT8 pedal_value[2];
+
+static UINT8 *bank_base;
+static UINT8 *bank_source_data;
+
+
+
+/*************************************
+ *
+ * Initialization
+ *
+ *************************************/
+
+static void update_interrupts(void)
+{
+ int newstate = 0;
+
+ if (atarigen_video_int_state)
+ newstate = 1;
+ if (atarigen_sound_int_state)
+ newstate = 2;
+
+ if (newstate)
+ cpunum_set_input_line(0, newstate, ASSERT_LINE);
+ else
+ cpunum_set_input_line(0, 7, CLEAR_LINE);
+}
+
+
+static void scanline_update(running_machine *machine, int scrnum, int scanline)
+{
+ /* sound IRQ is on 32V */
+ if (scanline & 32)
+ atarigen_6502_irq_ack_r(0);
+ else if (!(readinputport(0) & 0x40))
+ atarigen_6502_irq_gen();
+}
+
+
+static MACHINE_RESET( badlands )
+{
+ pedal_value[0] = pedal_value[1] = 0x80;
+
+ atarigen_eeprom_reset();
+ atarigen_interrupt_reset(update_interrupts);
+ atarigen_scanline_timer_reset(0, scanline_update, 32);
+
+ atarigen_sound_io_reset(1);
+ memcpy(bank_base, &bank_source_data[0x0000], 0x1000);
+}
+
+
+
+/*************************************
+ *
+ * Interrupt handling
+ *
+ *************************************/
+
+static INTERRUPT_GEN( vblank_int )
+{
+ int pedal_state = input_port_4_r(0);
+ int i;
+
+ /* update the pedals once per frame */
+ for (i = 0; i < 2; i++)
+ {
+ pedal_value[i]--;
+ if (pedal_state & (1 << i))
+ pedal_value[i]++;
+ }
+
+ atarigen_video_int_gen();
+}
+
+
+
+/*************************************
+ *
+ * I/O read dispatch
+ *
+ *************************************/
+
+static READ16_HANDLER( sound_busy_r )
+{
+ int temp = 0xfeff;
+ if (atarigen_cpu_to_sound_ready) temp ^= 0x0100;
+ return temp;
+}
+
+
+static READ16_HANDLER( pedal_0_r )
+{
+ return pedal_value[0];
+}
+
+
+static READ16_HANDLER( pedal_1_r )
+{
+ return pedal_value[1];
+}
+
+
+
+/*************************************
+ *
+ * Audio I/O handlers
+ *
+ *************************************/
+
+static READ8_HANDLER( audio_io_r )
+{
+ int result = 0xff;
+
+ switch (offset & 0x206)
+ {
+ case 0x000: /* n/c */
+ logerror("audio_io_r: Unknown read at %04X\n", offset & 0x206);
+ break;
+
+ case 0x002: /* /RDP */
+ result = atarigen_6502_sound_r(offset);
+ break;
+
+ case 0x004: /* /RDIO */
+ /*
+ 0x80 = self test
+ 0x40 = NMI line state (active low)
+ 0x20 = sound output full
+ 0x10 = self test
+ 0x08 = +5V
+ 0x04 = +5V
+ 0x02 = coin 2
+ 0x01 = coin 1
+ */
+ result = readinputport(3);
+ if (!(readinputport(0) & 0x0080)) result ^= 0x90;
+ if (atarigen_cpu_to_sound_ready) result ^= 0x40;
+ if (atarigen_sound_to_cpu_ready) result ^= 0x20;
+ result ^= 0x10;
+ break;
+
+ case 0x006: /* /IRQACK */
+ atarigen_6502_irq_ack_r(0);
+ break;
+
+ case 0x200: /* /VOICE */
+ case 0x202: /* /WRP */
+ case 0x204: /* /WRIO */
+ case 0x206: /* /MIX */
+ logerror("audio_io_r: Unknown read at %04X\n", offset & 0x206);
+ break;
+ }
+
+ return result;
+}
+
+
+static WRITE8_HANDLER( audio_io_w )
+{
+ switch (offset & 0x206)
+ {
+ case 0x000: /* n/c */
+ case 0x002: /* /RDP */
+ case 0x004: /* /RDIO */
+ logerror("audio_io_w: Unknown write (%02X) at %04X\n", data & 0xff, offset & 0x206);
+ break;
+
+ case 0x006: /* /IRQACK */
+ atarigen_6502_irq_ack_r(0);
+ break;
+
+ case 0x200: /* n/c */
+ case 0x206: /* n/c */
+ break;
+
+ case 0x202: /* /WRP */
+ atarigen_6502_sound_w(offset, data);
+ break;
+
+ case 0x204: /* WRIO */
+ /*
+ 0xc0 = bank address
+ 0x20 = coin counter 2
+ 0x10 = coin counter 1
+ 0x08 = n/c
+ 0x04 = n/c
+ 0x02 = n/c
+ 0x01 = YM2151 reset (active low)
+ */
+
+ /* update the bank */
+ memcpy(bank_base, &bank_source_data[0x1000 * ((data >> 6) & 3)], 0x1000);
+ break;
+ }
+}
+
+
+
+/*************************************
+ *
+ * Main CPU memory handlers
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 16 )
+ AM_RANGE(0x000000, 0x03ffff) AM_ROM
+ AM_RANGE(0xfc0000, 0xfc1fff) AM_READWRITE(sound_busy_r, atarigen_sound_reset_w)
+ AM_RANGE(0xfd0000, 0xfd1fff) AM_READWRITE(atarigen_eeprom_r, atarigen_eeprom_w) AM_BASE(&atarigen_eeprom) AM_SIZE(&atarigen_eeprom_size)
+ AM_RANGE(0xfe0000, 0xfe1fff) AM_WRITE(watchdog_reset16_w)
+ AM_RANGE(0xfe2000, 0xfe3fff) AM_WRITE(atarigen_video_int_ack_w)
+ AM_RANGE(0xfe4000, 0xfe5fff) AM_READ(input_port_0_word_r)
+ AM_RANGE(0xfe6000, 0xfe6001) AM_READ(input_port_1_word_r)
+ AM_RANGE(0xfe6002, 0xfe6003) AM_READ(input_port_2_word_r)
+ AM_RANGE(0xfe6004, 0xfe6005) AM_READ(pedal_0_r)
+ AM_RANGE(0xfe6006, 0xfe6007) AM_READ(pedal_1_r)
+ AM_RANGE(0xfe8000, 0xfe9fff) AM_WRITE(atarigen_sound_upper_w)
+ AM_RANGE(0xfea000, 0xfebfff) AM_READ(atarigen_sound_upper_r)
+ AM_RANGE(0xfec000, 0xfedfff) AM_WRITE(badlands_pf_bank_w)
+ AM_RANGE(0xfee000, 0xfeffff) AM_WRITE(atarigen_eeprom_enable_w)
+ AM_RANGE(0xffc000, 0xffc3ff) AM_READWRITE(MRA16_RAM, atarigen_expanded_666_paletteram_w) AM_BASE(&paletteram16)
+ AM_RANGE(0xffe000, 0xffefff) AM_READWRITE(MRA16_RAM, atarigen_playfield_w) AM_BASE(&atarigen_playfield)
+ AM_RANGE(0xfff000, 0xfff1ff) AM_READWRITE(MRA16_RAM, atarimo_0_spriteram_expanded_w) AM_BASE(&atarimo_0_spriteram)
+ AM_RANGE(0xfff200, 0xffffff) AM_RAM
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Sound CPU memory handlers
+ *
+ *************************************/
+
+static ADDRESS_MAP_START( audio_map, ADDRESS_SPACE_PROGRAM, 8 )
+ AM_RANGE(0x0000, 0x1fff) AM_RAM
+ AM_RANGE(0x2000, 0x2000) AM_READWRITE(YM2151_status_port_0_r, YM2151_register_port_0_w)
+ AM_RANGE(0x2000, 0x2001) AM_READWRITE(YM2151_status_port_0_r, YM2151_data_port_0_w)
+ AM_RANGE(0x2800, 0x2bff) AM_READWRITE(audio_io_r, audio_io_w)
+ AM_RANGE(0x3000, 0xffff) AM_ROM
+ADDRESS_MAP_END
+
+
+
+/*************************************
+ *
+ * Port definitions
+ *
+ *************************************/
+
+static INPUT_PORTS_START( badlands )
+ PORT_START /* fe4000 */
+ PORT_BIT( 0x000f, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_START1 )
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_START2 )
+ PORT_BIT( 0x0040, IP_ACTIVE_HIGH, IPT_VBLANK )
+ PORT_SERVICE( 0x0080, IP_ACTIVE_LOW )
+ PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* fe6000 */
+ PORT_BIT( 0x00ff, 0, IPT_DIAL ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_PLAYER(1)
+ PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* fe6002 */
+ PORT_BIT( 0x00ff, 0, IPT_DIAL ) PORT_SENSITIVITY(50) PORT_KEYDELTA(10) PORT_PLAYER(2)
+ PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START /* audio port */
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 )
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_COIN2 )
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_COIN3 )
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_UNUSED )
+ PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* self test */
+ PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* response buffer full */
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_SPECIAL ) /* command buffer full */
+ PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_SPECIAL ) /* self test */
+
+ PORT_START /* fake for pedals */
+ PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x0002, IP_ACTIVE_HIGH, IPT_BUTTON1 ) PORT_PLAYER(2)
+ PORT_BIT( 0xfffe, IP_ACTIVE_HIGH, IPT_UNUSED )
+INPUT_PORTS_END
+
+
+
+/*************************************
+ *
+ * Graphics definitions
+ *
+ *************************************/
+
+static const gfx_layout pflayout =
+{
+ 8,8,
+ RGN_FRAC(1,1),
+ 4,
+ { 0, 1, 2, 3 },
+ { 0, 4, 8, 12, 16, 20, 24, 28 },
+ { 0*8, 4*8, 8*8, 12*8, 16*8, 20*8, 24*8, 28*8 },
+ 32*8
+};
+
+
+static const gfx_layout molayout =
+{
+ 16,8,
+ RGN_FRAC(1,1),
+ 4,
+ { 0, 1, 2, 3 },
+ { 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60 },
+ { 0*8, 8*8, 16*8, 24*8, 32*8, 40*8, 48*8, 56*8 },
+ 64*8
+};
+
+
+static GFXDECODE_START( badlands )
+ GFXDECODE_ENTRY( REGION_GFX1, 0, pflayout, 0, 8 )
+ GFXDECODE_ENTRY( REGION_GFX2, 0, molayout, 128, 8 )
+GFXDECODE_END
+
+
+
+/*************************************
+ *
+ * Machine driver
+ *
+ *************************************/
+
+static MACHINE_DRIVER_START( badlands )
+
+ /* basic machine hardware */
+ MDRV_CPU_ADD(M68000, ATARI_CLOCK_14MHz/2)
+ MDRV_CPU_PROGRAM_MAP(main_map,0)
+ MDRV_CPU_VBLANK_INT(vblank_int,1)
+
+ MDRV_CPU_ADD(M6502, ATARI_CLOCK_14MHz/8)
+ MDRV_CPU_PROGRAM_MAP(audio_map,0)
+
+ MDRV_MACHINE_RESET(badlands)
+ MDRV_NVRAM_HANDLER(atarigen)
+
+ /* video hardware */
+ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER | VIDEO_UPDATE_BEFORE_VBLANK)
+ MDRV_GFXDECODE(badlands)
+ MDRV_PALETTE_LENGTH(256)
+
+ MDRV_SCREEN_ADD("main", 0)
+ MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
+ /* note: these parameters are from published specs, not derived */
+ /* the board uses an SOS-2 chip to generate video signals */
+ MDRV_SCREEN_RAW_PARAMS(ATARI_CLOCK_14MHz/2, 456, 0, 336, 262, 0, 240)
+
+ MDRV_VIDEO_START(badlands)
+ MDRV_VIDEO_UPDATE(badlands)
+
+ /* sound hardware */
+ MDRV_SPEAKER_STANDARD_MONO("mono")
+
+ MDRV_SOUND_ADD(YM2151, ATARI_CLOCK_14MHz/4)
+ MDRV_SOUND_ROUTE(0, "mono", 0.30)
+ MDRV_SOUND_ROUTE(1, "mono", 0.30)
+MACHINE_DRIVER_END
+
+
+
+/*************************************
+ *
+ * ROM definition(s)
+ *
+ *************************************/
+
+ROM_START( badlands )
+ ROM_REGION( 0x40000, REGION_CPU1, 0 ) /* 4*64k for 68000 code */
+ ROM_LOAD16_BYTE( "136074-1008.20f", 0x00000, 0x10000, CRC(a3da5774) SHA1(5ab1eb61d25594b2d7c40400cb57e7f47a717598) )
+ ROM_LOAD16_BYTE( "136074-1006.27f", 0x00001, 0x10000, CRC(aa03b4f3) SHA1(5eda60c715ffcefd4ad34bdb90579e8671dc384a) )
+ ROM_LOAD16_BYTE( "136074-1009.17f", 0x20000, 0x10000, CRC(0e2e807f) SHA1(5b61de066dca12c44335aa68a13c821845657866) )
+ ROM_LOAD16_BYTE( "136074-1007.24f", 0x20001, 0x10000, CRC(99a20c2c) SHA1(9b0a5a5dafb8816e72330d302c60339b600b49a8) )
+
+ ROM_REGION( 0x14000, REGION_CPU2, 0 ) /* 64k for 6502 code */
+ ROM_LOAD( "136074-1018.9c", 0x10000, 0x4000, CRC(a05fd146) SHA1(d97abbcf7897ca720cc18ff3a323f41cd3b23c34) )
+ ROM_CONTINUE( 0x04000, 0xc000 )
+
+ ROM_REGION( 0x60000, REGION_GFX1, ROMREGION_DISPOSE | ROMREGION_INVERT )
+ ROM_LOAD( "136074-1012.4n", 0x000000, 0x10000, CRC(5d124c6c) SHA1(afebaaf90b3751f5e873fc4c45f1d5385ef86a6e) ) /* playfield */
+ ROM_LOAD( "136074-1013.2n", 0x010000, 0x10000, CRC(b1ec90d6) SHA1(8d4c7db8e1bf9c050f5869eb38fa573867fdc12b) )
+ ROM_LOAD( "136074-1014.4s", 0x020000, 0x10000, CRC(248a6845) SHA1(086ef0840b889e790ce3fcd09f98589aae932456) )
+ ROM_LOAD( "136074-1015.2s", 0x030000, 0x10000, CRC(792296d8) SHA1(833cdb968064151ca77bb3dbe416ff7127a12de4) )
+ ROM_LOAD( "136074-1016.4u", 0x040000, 0x10000, CRC(878f7c66) SHA1(31159bea5d6aac8100fca8f3860220b97d63e72e) )
+ ROM_LOAD( "136074-1017.2u", 0x050000, 0x10000, CRC(ad0071a3) SHA1(472b197e5d320b3424d8a8d8c051b1023a07ae08) )
+
+ ROM_REGION( 0x30000, REGION_GFX2, ROMREGION_DISPOSE | ROMREGION_INVERT )
+ ROM_LOAD( "136074-1010.14r", 0x000000, 0x10000, CRC(c15f629e) SHA1(944e3479dce6e420cf9a3f4c1438c5ca66e5cb97) ) /* mo */
+ ROM_LOAD( "136074-1011.10r", 0x010000, 0x10000, CRC(fb0b6717) SHA1(694ab0f04d673682831a24027757d4b3c40a4e0e) )
+ ROM_LOAD( "136074-1019.14t", 0x020000, 0x10000, CRC(0e26bff6) SHA1(ee018dd37a27c7e7c16a57ea0d32aeb9cdf26bb4) )
+
+ ROM_REGION( 0x0800, REGION_PLDS, ROMREGION_DISPOSE )
+ ROM_LOAD( "gal16v8-1001.26c", 0x0000, 0x0117, CRC(04c3be6a) SHA1(f027834e652f3ff778b09c3754294b303f9ed826) )
+ ROM_LOAD( "gal16v8-1002.21r", 0x0200, 0x0117, CRC(f68bf41d) SHA1(72edd6d0f5d55d39c0020f384149de7ac964f273) )
+ ROM_LOAD( "gal16v8-1003.16s", 0x0400, 0x0117, CRC(a288bbd0) SHA1(62f5900ac88ffb335257f58d892492f370805498) )
+ ROM_LOAD( "gal16v8-1005.12e", 0x0600, 0x0117, CRC(9df77c79) SHA1(52c1c190b80db9b9bc43ce6eefd5f37ac16e590c) )
+ROM_END
+
+
+
+/*************************************
+ *
+ * Driver initialization
+ *
+ *************************************/
+
+static DRIVER_INIT( badlands )
+{
+ atarigen_eeprom_default = NULL;
+
+ /* initialize the audio system */
+ bank_base = &memory_region(REGION_CPU2)[0x03000];
+ bank_source_data = &memory_region(REGION_CPU2)[0x10000];
+}
+
+
+
+/*************************************
+ *
+ * Game driver(s)
+ *
+ *************************************/
+
+GAME( 1989, badlands, 0, badlands, badlands, badlands, ROT0, "Atari Games", "Bad Lands", 0 )