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// license:BSD-3-Clause
// copyright-holders:Bryan McPhail
/***************************************************************************
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 "includes/lemmings.h"
#include "cpu/m6809/m6809.h"
#include "cpu/m68000/m68000.h"
#include "sound/ym2151.h"
#include "sound/okim6295.h"
#include "screen.h"
#include "speaker.h"
WRITE16_MEMBER(lemmings_state::lemmings_control_w)
{
/* Offset==0 Pixel layer X scroll */
if (offset == 4)
return; /* Watchdog or IRQ ack */
COMBINE_DATA(&m_control_data[offset]);
}
READ16_MEMBER(lemmings_state::lemmings_trackball_r)
{
if ((offset & 2) == 0)
return m_trackball_io[(offset & 1) | ((offset & 4) >> 1)]->read();
return 0;
}
READ16_MEMBER( lemmings_state::lem_protection_region_0_146_r )
{
int real_address = 0 + (offset *2);
int deco146_addr = bitswap<32>(real_address, /* NC */31,30,29,28,27,26,25,24,23,22,21,20,19,18, 13,12,11,/**/ 17,16,15,14, 10,9,8, 7,6,5,4, 3,2,1,0) & 0x7fff;
uint8_t cs = 0;
uint16_t data = m_deco146->read_data( deco146_addr, mem_mask, cs );
return data;
}
WRITE16_MEMBER( lemmings_state::lem_protection_region_0_146_w )
{
int real_address = 0 + (offset *2);
int deco146_addr = bitswap<32>(real_address, /* NC */31,30,29,28,27,26,25,24,23,22,21,20,19,18, 13,12,11,/**/ 17,16,15,14, 10,9,8, 7,6,5,4, 3,2,1,0) & 0x7fff;
uint8_t cs = 0;
m_deco146->write_data( space, deco146_addr, data, mem_mask, cs );
}
/******************************************************************************/
void lemmings_state::lemmings_map(address_map &map)
{
map(0x000000, 0x0fffff).rom();
map(0x100000, 0x10ffff).ram();
map(0x120000, 0x1207ff).ram().share("spriteram1");
map(0x140000, 0x1407ff).ram().share("spriteram2");
map(0x160000, 0x160fff).ram().w(m_palette, FUNC(palette_device::write16)).share("palette");
map(0x170000, 0x17000f).ram().w(FUNC(lemmings_state::lemmings_control_w)).share("control_data");
map(0x190000, 0x19000f).r(FUNC(lemmings_state::lemmings_trackball_r));
map(0x1a0000, 0x1a3fff).rw(FUNC(lemmings_state::lem_protection_region_0_146_r), FUNC(lemmings_state::lem_protection_region_0_146_w)).share("prot16ram"); /* Protection device */
map(0x1c0000, 0x1c0001).w(m_spriteram[0], FUNC(buffered_spriteram16_device::write)); /* 1 written once a frame */
map(0x1e0000, 0x1e0001).w(m_spriteram[1], FUNC(buffered_spriteram16_device::write)); /* 1 written once a frame */
map(0x200000, 0x201fff).ram().w(FUNC(lemmings_state::lemmings_vram_w)).share("vram_data");
map(0x202000, 0x202fff).ram();
map(0x300000, 0x37ffff).ram().w(FUNC(lemmings_state::lemmings_pixel_0_w)).share("pixel_0_data");
map(0x380000, 0x39ffff).ram().w(FUNC(lemmings_state::lemmings_pixel_1_w)).share("pixel_1_data");
}
/******************************************************************************/
void lemmings_state::sound_map(address_map &map)
{
map(0x0000, 0x07ff).ram();
map(0x0800, 0x0801).rw("ymsnd", FUNC(ym2151_device::read), FUNC(ym2151_device::write));
map(0x1000, 0x1000).rw("oki", FUNC(okim6295_device::read), FUNC(okim6295_device::write));
map(0x1800, 0x1800).r(m_deco146, FUNC(deco_146_base_device::soundlatch_r)).nopw(); // writes an extra irq ack?
map(0x8000, 0xffff).rom();
}
/******************************************************************************/
static INPUT_PORTS_START( lemmings )
PORT_START("INPUTS")
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_CUSTOM ) PORT_VBLANK("screen")
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,
{ STEP4(4,1) },
{ STEP8(0,8) },
{ STEP8(0,8*8) },
8*8*8
};
static const gfx_layout sprite_layout =
{
16,16,
RGN_FRAC(1,1),
4,
{ STEP4(0,8) },
{ STEP8(8*4*16,1), STEP8(0,1) },
{ STEP16(0,8*4) },
16*16*4
};
static GFXDECODE_START( gfx_lemmings )
GFXDECODE_ENTRY( "gfx1", 0, sprite_layout, 512, 16 ) /* Sprites 16x16 */
GFXDECODE_ENTRY( "gfx2", 0, sprite_layout, 768, 16 ) /* Sprites 16x16 */
GFXDECODE_ENTRY( nullptr,0, charlayout, 0, 16 ) /* Dynamically modified */
GFXDECODE_END
/******************************************************************************/
void lemmings_state::machine_start()
{
}
MACHINE_CONFIG_START(lemmings_state::lemmings)
/* basic machine hardware */
MCFG_DEVICE_ADD("maincpu", M68000, 14000000)
MCFG_DEVICE_PROGRAM_MAP(lemmings_map)
MCFG_DEVICE_VBLANK_INT_DRIVER("screen", lemmings_state, irq6_line_hold)
MCFG_DEVICE_ADD("audiocpu", M6809,32220000/8)
MCFG_DEVICE_PROGRAM_MAP(sound_map)
/* video hardware */
MCFG_DEVICE_ADD("spriteram1", BUFFERED_SPRITERAM16)
MCFG_DEVICE_ADD("spriteram2", BUFFERED_SPRITERAM16)
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(529))
MCFG_SCREEN_SIZE(40*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 2*8, 30*8-1)
MCFG_SCREEN_UPDATE_DRIVER(lemmings_state, screen_update_lemmings)
MCFG_SCREEN_VBLANK_CALLBACK(WRITELINE(*this, lemmings_state, screen_vblank_lemmings))
MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_lemmings)
MCFG_PALETTE_ADD("palette", 1024)
MCFG_PALETTE_FORMAT(XBGR)
MCFG_DEVICE_ADD("spritegen1", DECO_SPRITE, 0)
MCFG_DECO_SPRITE_GFX_REGION(1)
MCFG_DECO_SPRITE_GFXDECODE("gfxdecode")
MCFG_DEVICE_ADD("spritegen2", DECO_SPRITE, 0)
MCFG_DECO_SPRITE_GFX_REGION(0)
MCFG_DECO_SPRITE_GFXDECODE("gfxdecode")
MCFG_DECO146_ADD("ioprot")
MCFG_DECO146_IN_PORTA_CB(IOPORT("INPUTS"))
MCFG_DECO146_IN_PORTB_CB(IOPORT("SYSTEM"))
MCFG_DECO146_IN_PORTC_CB(IOPORT("DSW"))
MCFG_DECO146_SET_USE_MAGIC_ADDRESS_XOR
MCFG_DECO146_SOUNDLATCH_IRQ_CB(INPUTLINE("audiocpu", 1))
/* sound hardware */
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
MCFG_GENERIC_LATCH_8_ADD("soundlatch")
MCFG_DEVICE_ADD("ymsnd", YM2151, 32220000/9)
MCFG_YM2151_IRQ_HANDLER(INPUTLINE("audiocpu", 0))
MCFG_SOUND_ROUTE(0, "lspeaker", 0.45)
MCFG_SOUND_ROUTE(1, "rspeaker", 0.45)
MCFG_DEVICE_ADD("oki", OKIM6295, 1023924, okim6295_device::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", ROMREGION_ERASE00 ) /* 3bpp data but sprite chip expects 4 */
ROM_LOAD32_BYTE( "lemmings.9", 0x000003, 0x10000, CRC(e06442f5) SHA1(d9c8b681cce1d0257a0446bc820c7d679e2a1168) )
ROM_LOAD32_BYTE( "lemmings.10", 0x000002, 0x10000, CRC(36398848) SHA1(6c6956607f889c35367e6df4a32359042fad695e) )
ROM_LOAD32_BYTE( "lemmings.11", 0x000001, 0x10000, CRC(b46a54e5) SHA1(53b053346f80357aecff4ab888a8562f99cb318f) )
ROM_REGION( 0x40000, "gfx2", ROMREGION_ERASE00 ) /* 3bpp data but sprite chip expects 4 */
ROM_LOAD32_BYTE( "lemmings.12", 0x000003, 0x10000, CRC(dc9047ff) SHA1(1bbe573fa51127a9e8b970a353f3cceab00f486a) )
ROM_LOAD32_BYTE( "lemmings.13", 0x000002, 0x10000, CRC(7cc15491) SHA1(73c1c11b2738f6679c70cae8ac4c55cdc9b8fc27) )
ROM_LOAD32_BYTE( "lemmings.14", 0x000001, 0x10000, CRC(c162788f) SHA1(e1f669efa59699cd1b7da71b112701ee79240c18) )
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, lemmings_state, empty_init, ROT0, "Data East USA", "Lemmings (US prototype)", MACHINE_SUPPORTS_SAVE )