/*************************************************************************** Lemmings (c) 1991 Data East USA (DE-0357) Prototype! Licensed from the home computer version this game never made it past the arcade field test stage. Unlike most Data East games this hardware features a pixel layer and a VRAM layer, probably to make the transition from the pixel addressable computer code to the arcade hardware. As prototype software it seems to have a couple of non-critical bugs, the palette ram check and vram check both overrun their actual ramsize. Emulation by Bryan McPhail, mish@tendril.co.uk ***************************************************************************/ #include "emu.h" #include "cpu/m6809/m6809.h" #include "cpu/m68000/m68000.h" #include "sound/2151intf.h" #include "sound/okim6295.h" #include "includes/lemmings.h" static WRITE16_HANDLER( lemmings_control_w ) { lemmings_state *state = space->machine().driver_data(); /* Offset==0 Pixel layer X scroll */ if (offset == 4) return; /* Watchdog or IRQ ack */ COMBINE_DATA(&state->m_control_data[offset]); } static READ16_HANDLER( lemmings_trackball_r ) { switch (offset) { case 0: return input_port_read(space->machine(), "AN0"); case 1: return input_port_read(space->machine(), "AN1"); case 4: return input_port_read(space->machine(), "AN2"); case 5: return input_port_read(space->machine(), "AN3"); } return 0; } /* Same as Robocop 2 protection chip */ static READ16_HANDLER( lemmings_prot_r ) { switch (offset << 1) { case 0x41a: return input_port_read(space->machine(), "BUTTONS"); case 0x320: return input_port_read(space->machine(), "SYSTEM"); case 0x4e6: return input_port_read(space->machine(), "DSW"); } return 0; } static WRITE16_HANDLER( lemmings_palette_24bit_w ) { lemmings_state *state = space->machine().driver_data(); int r, g, b; COMBINE_DATA(&state->m_paletteram[offset]); if (offset & 1) offset--; b = (state->m_paletteram[offset] >> 0) & 0xff; g = (state->m_paletteram[offset + 1] >> 8) & 0xff; r = (state->m_paletteram[offset + 1] >> 0) & 0xff; palette_set_color(space->machine(), offset / 2, MAKE_RGB(r, g, b)); } static WRITE16_HANDLER( lemmings_sound_w ) { lemmings_state *state = space->machine().driver_data(); soundlatch_w(space, 0, data & 0xff); device_set_input_line(state->m_audiocpu, 1, HOLD_LINE); } static WRITE8_HANDLER( lemmings_sound_ack_w ) { lemmings_state *state = space->machine().driver_data(); device_set_input_line(state->m_audiocpu, 1, CLEAR_LINE); } /******************************************************************************/ static ADDRESS_MAP_START( lemmings_map, AS_PROGRAM, 16 ) AM_RANGE(0x000000, 0x0fffff) AM_ROM AM_RANGE(0x100000, 0x10ffff) AM_RAM AM_RANGE(0x120000, 0x1207ff) AM_RAM AM_BASE_SIZE_GENERIC(spriteram) AM_RANGE(0x140000, 0x1407ff) AM_RAM AM_BASE_SIZE_GENERIC(spriteram2) AM_RANGE(0x160000, 0x160fff) AM_RAM_WRITE(lemmings_palette_24bit_w) AM_BASE_MEMBER(lemmings_state, m_paletteram) AM_RANGE(0x170000, 0x17000f) AM_RAM_WRITE(lemmings_control_w) AM_BASE_MEMBER(lemmings_state, m_control_data) AM_RANGE(0x190000, 0x19000f) AM_READ(lemmings_trackball_r) AM_RANGE(0x1a0000, 0x1a07ff) AM_READ(lemmings_prot_r) AM_RANGE(0x1a0064, 0x1a0065) AM_WRITE(lemmings_sound_w) AM_RANGE(0x1c0000, 0x1c0001) AM_WRITE(buffer_spriteram16_w) /* 1 written once a frame */ AM_RANGE(0x1e0000, 0x1e0001) AM_WRITE(buffer_spriteram16_2_w) /* 1 written once a frame */ AM_RANGE(0x200000, 0x201fff) AM_RAM_WRITE(lemmings_vram_w) AM_BASE_MEMBER(lemmings_state, m_vram_data) AM_RANGE(0x202000, 0x202fff) AM_RAM AM_RANGE(0x300000, 0x37ffff) AM_RAM_WRITE(lemmings_pixel_0_w) AM_BASE_MEMBER(lemmings_state, m_pixel_0_data) AM_RANGE(0x380000, 0x39ffff) AM_RAM_WRITE(lemmings_pixel_1_w) AM_BASE_MEMBER(lemmings_state, m_pixel_1_data) ADDRESS_MAP_END /******************************************************************************/ static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8 ) AM_RANGE(0x0000, 0x07ff) AM_RAM AM_RANGE(0x0800, 0x0801) AM_DEVREADWRITE("ymsnd", ym2151_r,ym2151_w) AM_RANGE(0x1000, 0x1000) AM_DEVREADWRITE_MODERN("oki", okim6295_device, read, write) AM_RANGE(0x1800, 0x1800) AM_READWRITE(soundlatch_r,lemmings_sound_ack_w) AM_RANGE(0x8000, 0xffff) AM_ROM ADDRESS_MAP_END /******************************************************************************/ static INPUT_PORTS_START( lemmings ) PORT_START("BUTTONS") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_NAME("P1 Select") PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_NAME("P1 Hurry") PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) PORT_NAME("P2 Select") PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) PORT_NAME("P2 Hurry") PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("SYSTEM") PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_SERVICE_NO_TOGGLE(0x0004, IP_ACTIVE_LOW) PORT_BIT( 0x0008, IP_ACTIVE_HIGH, IPT_VBLANK ) PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0xff00, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_START("DSW") PORT_DIPNAME( 0x0003, 0x0003, "Credits for 1 Player" ) PORT_DIPSETTING( 0x0003, "1" ) PORT_DIPSETTING( 0x0002, "2" ) PORT_DIPSETTING( 0x0001, "3" ) PORT_DIPSETTING( 0x0000, "4" ) PORT_DIPNAME( 0x000c, 0x000c, "Credits for 2 Player" ) PORT_DIPSETTING( 0x000c, "1" ) PORT_DIPSETTING( 0x0008, "2" ) PORT_DIPSETTING( 0x0004, "3" ) PORT_DIPSETTING( 0x0000, "4" ) PORT_DIPNAME( 0x0030, 0x0030, "Credits for Continue" ) PORT_DIPSETTING( 0x0030, "1" ) PORT_DIPSETTING( 0x0020, "2" ) PORT_DIPSETTING( 0x0010, "3" ) PORT_DIPSETTING( 0x0000, "4" ) PORT_DIPNAME( 0x0040, 0x0040, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x0040, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x0080, 0x0080, DEF_STR( Free_Play ) ) PORT_DIPSETTING( 0x0080, DEF_STR( Off ) ) PORT_DIPSETTING( 0x0000, DEF_STR( On ) ) PORT_DIPNAME( 0x0700, 0x0700, DEF_STR( Coin_A ) ) PORT_DIPSETTING( 0x0700, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x0600, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x0500, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x0400, DEF_STR( 1C_4C ) ) PORT_DIPSETTING( 0x0300, DEF_STR( 1C_5C ) ) PORT_DIPSETTING( 0x0200, DEF_STR( 1C_6C ) ) PORT_DIPSETTING( 0x0100, DEF_STR( 1C_7C ) ) PORT_DIPSETTING( 0x0000, DEF_STR( 1C_8C ) ) PORT_DIPNAME( 0x3800, 0x3800, DEF_STR( Coin_B ) ) PORT_DIPSETTING( 0x3800, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x3000, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x2800, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x2000, DEF_STR( 1C_4C ) ) PORT_DIPSETTING( 0x1800, DEF_STR( 1C_5C ) ) PORT_DIPSETTING( 0x1000, DEF_STR( 1C_6C ) ) PORT_DIPSETTING( 0x0800, DEF_STR( 1C_7C ) ) PORT_DIPSETTING( 0x0000, DEF_STR( 1C_8C ) ) PORT_DIPUNKNOWN( 0x4000, 0x4000 ) PORT_DIPUNKNOWN( 0x8000, 0x8000 ) PORT_START("AN0") PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_X ) PORT_SENSITIVITY(70) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(1) PORT_START("AN1") PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(70) PORT_KEYDELTA(10) PORT_PLAYER(1) PORT_START("AN2") PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_X ) PORT_SENSITIVITY(70) PORT_KEYDELTA(10) PORT_REVERSE PORT_PLAYER(2) PORT_START("AN3") PORT_BIT( 0xff, 0x00, IPT_TRACKBALL_Y ) PORT_SENSITIVITY(70) PORT_KEYDELTA(10) PORT_PLAYER(2) INPUT_PORTS_END /******************************************************************************/ static const gfx_layout charlayout = { 8,8, 2048, 4, { 4, 5, 6, 7 }, { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, { 0*0, 1*64, 2*64, 3*64, 4*64, 5*64, 6*64, 7*64 }, 8*64 }; static const gfx_layout sprite_layout = { 16,16, RGN_FRAC(1,4), 4, { 0x30000*8, 0x20000*8, 0x10000*8, 0x00000*8 }, { 7, 6, 5, 4, 3, 2, 1, 0, 16*8+7, 16*8+6, 16*8+5, 16*8+4, 16*8+3, 16*8+2, 16*8+1, 16*8+0 }, { 15*8, 14*8, 13*8, 12*8, 11*8, 10*8, 9*8, 8*8, 7*8, 6*8, 5*8, 4*8, 3*8, 2*8, 1*8, 0*8 }, 32*8 }; static GFXDECODE_START( lemmings ) GFXDECODE_ENTRY( "gfx1", 0, sprite_layout, 32*16, 16 ) /* Sprites 16x16 */ GFXDECODE_ENTRY( "gfx2", 0, sprite_layout, 48*16, 16 ) /* Sprites 16x16 */ GFXDECODE_ENTRY( NULL, 0, charlayout, 0, 16 ) /* Dynamically modified */ GFXDECODE_END /******************************************************************************/ static void sound_irq( device_t *device, int state ) { lemmings_state *lemmings = device->machine().driver_data(); device_set_input_line(lemmings->m_audiocpu, 0, state); } static const ym2151_interface ym2151_config = { sound_irq }; static MACHINE_START( lemmings ) { lemmings_state *state = machine.driver_data(); state->m_audiocpu = machine.device("audiocpu"); } static MACHINE_CONFIG_START( lemmings, lemmings_state ) /* basic machine hardware */ MCFG_CPU_ADD("maincpu", M68000, 14000000) MCFG_CPU_PROGRAM_MAP(lemmings_map) MCFG_CPU_VBLANK_INT("screen", irq6_line_hold) MCFG_CPU_ADD("audiocpu", M6809,32220000/8) MCFG_CPU_PROGRAM_MAP(sound_map) MCFG_MACHINE_START(lemmings) /* video hardware */ MCFG_VIDEO_ATTRIBUTES(VIDEO_BUFFERS_SPRITERAM) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(529)) MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MCFG_SCREEN_SIZE(40*8, 32*8) MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 2*8, 30*8-1) MCFG_SCREEN_UPDATE(lemmings) MCFG_SCREEN_EOF(lemmings) MCFG_GFXDECODE(lemmings) MCFG_PALETTE_LENGTH(1024) MCFG_VIDEO_START(lemmings) /* sound hardware */ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") MCFG_SOUND_ADD("ymsnd", YM2151, 32220000/9) MCFG_SOUND_CONFIG(ym2151_config) MCFG_SOUND_ROUTE(0, "lspeaker", 0.45) MCFG_SOUND_ROUTE(1, "rspeaker", 0.45) MCFG_OKIM6295_ADD("oki", 1023924, OKIM6295_PIN7_HIGH) // clock frequency & pin 7 not verified MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50) MACHINE_CONFIG_END /******************************************************************************/ ROM_START( lemmings ) ROM_REGION( 0x100000, "maincpu", 0 ) /* 68000 code */ ROM_LOAD16_BYTE( "lemmings.5", 0x00000, 0x20000, CRC(e9a2b439) SHA1(873723a06d71bb41772951f451a75578b30267d5) ) ROM_LOAD16_BYTE( "lemmings.1", 0x00001, 0x20000, CRC(bf52293b) SHA1(47a1ed64bf02776db086fdce80997b8a0c068791) ) ROM_LOAD16_BYTE( "lemmings.6", 0x40000, 0x20000, CRC(0e3dc0ea) SHA1(533abf66ca4b578d03566d5de922dc5828c26eca) ) ROM_LOAD16_BYTE( "lemmings.2", 0x40001, 0x20000, CRC(0cf3d7ce) SHA1(95dc43a8cded860fcf8743b62cbe4f2a97f43215) ) ROM_LOAD16_BYTE( "lemmings.7", 0x80000, 0x20000, CRC(d020219c) SHA1(9678d8636798d1e528269fe2f9eb532e189c134e) ) ROM_LOAD16_BYTE( "lemmings.3", 0x80001, 0x20000, CRC(c635494a) SHA1(e105dc79bd3c425d971629a3066c38dbf08b6428) ) ROM_LOAD16_BYTE( "lemmings.8", 0xc0000, 0x20000, CRC(9166ce09) SHA1(7f0970cc07ebdbfc9a738342259d07d37b397161) ) ROM_LOAD16_BYTE( "lemmings.4", 0xc0001, 0x20000, CRC(aa845488) SHA1(d17ec80f43d2a0123e93fad83d4e1319eb18d7c7) ) ROM_REGION( 0x10000, "audiocpu", 0 ) /* Sound CPU */ ROM_LOAD( "lemmings.15", 0x00000, 0x10000, CRC(f0b24a35) SHA1(1aaeb1e6faee04d2e433161fd7aa965b58e3b8a7) ) ROM_REGION( 0x40000, "gfx1", 0 ) ROM_LOAD( "lemmings.9", 0x000000, 0x10000, CRC(e06442f5) SHA1(d9c8b681cce1d0257a0446bc820c7d679e2a1168) ) ROM_LOAD( "lemmings.10", 0x010000, 0x10000, CRC(36398848) SHA1(6c6956607f889c35367e6df4a32359042fad695e) ) ROM_LOAD( "lemmings.11", 0x020000, 0x10000, CRC(b46a54e5) SHA1(53b053346f80357aecff4ab888a8562f99cb318f) ) ROM_FILL( 0x030000, 0x10000, 0 ) /* 3bpp data but sprite chip expects 4 */ ROM_REGION( 0x40000, "gfx2", 0 ) ROM_LOAD( "lemmings.12", 0x000000, 0x10000, CRC(dc9047ff) SHA1(1bbe573fa51127a9e8b970a353f3cceab00f486a) ) ROM_LOAD( "lemmings.13", 0x010000, 0x10000, CRC(7cc15491) SHA1(73c1c11b2738f6679c70cae8ac4c55cdc9b8fc27) ) ROM_LOAD( "lemmings.14", 0x020000, 0x10000, CRC(c162788f) SHA1(e1f669efa59699cd1b7da71b112701ee79240c18) ) ROM_FILL( 0x030000, 0x10000, 0 ) /* 3bpp data but sprite chip expects 4 */ ROM_REGION( 0x40000, "oki", 0 ) /* ADPCM samples */ ROM_LOAD( "lemmings.16", 0x00000, 0x20000, CRC(f747847c) SHA1(00880fa6dff979e5d15daea61938bd18c768c92f) ) ROM_END /******************************************************************************/ GAME( 1991, lemmings, 0, lemmings, lemmings, 0, ROT0, "Data East USA", "Lemmings (US prototype)", GAME_SUPPORTS_SAVE )