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Diffstat (limited to 'src/mame/drivers/tugboat.cpp')
-rw-r--r--src/mame/drivers/tugboat.cpp477
1 files changed, 0 insertions, 477 deletions
diff --git a/src/mame/drivers/tugboat.cpp b/src/mame/drivers/tugboat.cpp
deleted file mode 100644
index 89a2a71b62b..00000000000
--- a/src/mame/drivers/tugboat.cpp
+++ /dev/null
@@ -1,477 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Ryan Holtz
-/****************************************************************************
-
-Tug Boat
-6502 hooked up + preliminary video by Ryan Holtz
-
-TODO:
-- verify connections of the two PIAs. I only hooked up a couple of ports but
- there are more.
-- check how the score is displayed. I'm quite sure that tugboat_score_w is
- supposed to access videoram scanning it by columns (like btime_mirrorvideoram_w),
- but the current implementation is a big kludge, and it still looks wrong.
-- colors might not be entirely accurate
- Suspect berenstn is using the wrong color PROM.
-- convert to use the H46505 device.
-
-the problem which caused the controls not to work
----
-There's counter at $000b, counting up from $ff to 0 or from $fe to 0 (initial value depends
-on game level). It's increased in main loop, and used for game flow control (scrolling speed , controls etc).
-Every interrupt, when (counter&3)!=0 , there's a check for left/right inputs .
-But when init val was $ff (2nd level), the condition 'counter&3!=0' was
-always false - counter was reloaded and incremented before interrupt occurs
-
-****************************************************************************/
-
-#include "emu.h"
-#include "cpu/m6502/m6502.h"
-#include "machine/6821pia.h"
-#include "sound/ay8910.h"
-#include "emupal.h"
-#include "screen.h"
-#include "speaker.h"
-
-
-class tugboat_state : public driver_device
-{
-public:
- tugboat_state(const machine_config &mconfig, device_type type, const char *tag) :
- driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_gfxdecode(*this, "gfxdecode"),
- m_screen(*this, "screen"),
- m_palette(*this, "palette"),
- m_ram(*this, "ram")
- { }
-
- void tugboat(machine_config &config);
-
-protected:
- enum
- {
- TIMER_INTERRUPT
- };
-
- virtual void machine_start() override;
- virtual void video_start() override;
- virtual void machine_reset() override;
-
- virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
-
-private:
- required_device<cpu_device> m_maincpu;
- required_device<gfxdecode_device> m_gfxdecode;
- required_device<screen_device> m_screen;
- required_device<palette_device> m_palette;
-
- required_shared_ptr<uint8_t> m_ram;
-
- uint8_t m_hd46505_0_reg[18];
- uint8_t m_hd46505_1_reg[18];
- int m_reg0;
- int m_reg1;
- int m_ctrl;
- emu_timer *m_interrupt_timer;
-
- DECLARE_WRITE8_MEMBER(hd46505_0_w);
- DECLARE_WRITE8_MEMBER(hd46505_1_w);
- DECLARE_WRITE8_MEMBER(score_w);
- DECLARE_READ8_MEMBER(input_r);
- DECLARE_WRITE8_MEMBER(ctrl_w);
-
- void tugboat_palette(palette_device &palette) const;
-
- uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
- void draw_tilemap(bitmap_ind16 &bitmap, const rectangle &cliprect, int addr, int gfx0, int gfx1, int transparency);
-
- void main_map(address_map &map);
-};
-
-
-void tugboat_state::machine_start()
-{
- m_interrupt_timer = timer_alloc(TIMER_INTERRUPT);
-
- save_item(NAME(m_hd46505_0_reg));
- save_item(NAME(m_hd46505_1_reg));
- save_item(NAME(m_reg0));
- save_item(NAME(m_reg1));
- save_item(NAME(m_ctrl));
-}
-
-void tugboat_state::video_start()
-{
- m_gfxdecode->gfx(0)->set_granularity(8);
- m_gfxdecode->gfx(2)->set_granularity(8);
-}
-
-// there isn't the usual resistor array anywhere near the color PROM, just four 1k resistors.
-void tugboat_state::tugboat_palette(palette_device &palette) const
-{
- uint8_t const *const color_prom = memregion("proms")->base();
- for (int i = 0; i < palette.entries(); i++)
- {
- int const brt = BIT(color_prom[i], 3) ? 0xff : 0x80;
-
- int const r = brt * BIT(color_prom[i], 0);
- int const g = brt * BIT(color_prom[i], 1);
- int const b = brt * BIT(color_prom[i], 2);
-
- palette.set_pen_color(i, rgb_t(r, g, b));
- }
-}
-
-
-
-/* see mc6845.c. That file is only a placeholder, I process the writes here
- because I need the start_addr register to handle scrolling */
-WRITE8_MEMBER(tugboat_state::hd46505_0_w)
-{
- if (offset == 0) m_reg0 = data & 0x0f;
- else if (m_reg0 < 18) m_hd46505_0_reg[m_reg0] = data;
-}
-WRITE8_MEMBER(tugboat_state::hd46505_1_w)
-{
- if (offset == 0) m_reg1 = data & 0x0f;
- else if (m_reg1 < 18) m_hd46505_1_reg[m_reg1] = data;
-}
-
-
-WRITE8_MEMBER(tugboat_state::score_w)
-{
- if (offset>=0x8) m_ram[0x291d + 32*offset + 32*(1-8)] = data ^ 0x0f;
- if (offset<0x8 ) m_ram[0x291d + 32*offset + 32*9] = data ^ 0x0f;
-}
-
-void tugboat_state::draw_tilemap(bitmap_ind16 &bitmap, const rectangle &cliprect,
- int addr, int gfx0, int gfx1, int transparency)
-{
- for (int y = 0; y < 32; y++)
- {
- for (int x = 0; x < 32; x++)
- {
- int attr = m_ram[addr + 0x400];
- int code = ((attr & 0x01) << 8) | m_ram[addr];
- int color = (attr & 0x3c) >> 2;
-
- int rgn, transpen;
- if (attr & 0x02)
- {
- rgn = gfx1;
- transpen = 7;
- }
- else
- {
- rgn = gfx0;
- transpen = 1;
- }
-
- m_gfxdecode->gfx(rgn)->transpen(bitmap,cliprect,
- code,
- color,
- 0,0,
- 8*x,8*y,
- transparency ? transpen : -1);
-
- addr = (addr & 0xfc00) | ((addr + 1) & 0x03ff);
- }
- }
-}
-
-uint32_t tugboat_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- int const startaddr0 = m_hd46505_0_reg[0x0c]*256 + m_hd46505_0_reg[0x0d];
- int const startaddr1 = m_hd46505_1_reg[0x0c]*256 + m_hd46505_1_reg[0x0d];
-
- draw_tilemap(bitmap, cliprect, startaddr0, 0, 1, false);
- draw_tilemap(bitmap, cliprect, startaddr1, 2, 3, true);
-
- return 0;
-}
-
-
-
-READ8_MEMBER(tugboat_state::input_r)
-{
- if (~m_ctrl & 0x80)
- return ioport("IN0")->read();
- else if (~m_ctrl & 0x40)
- return ioport("IN1")->read();
- else if (~m_ctrl & 0x20)
- return ioport("IN2")->read();
- else if (~m_ctrl & 0x10)
- return ioport("IN3")->read();
- else
- return ioport("IN4")->read();
-}
-
-WRITE8_MEMBER(tugboat_state::ctrl_w)
-{
- m_ctrl = data;
-}
-
-void tugboat_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
- switch (id)
- {
- case TIMER_INTERRUPT:
- m_maincpu->set_input_line(0, HOLD_LINE);
- m_interrupt_timer->adjust(m_screen->frame_period());
- break;
- default:
- throw emu_fatalerror("Unknown id in tugboat_state::device_timer");
- }
-}
-
-void tugboat_state::machine_reset()
-{
- m_interrupt_timer->adjust(m_screen->time_until_pos(0));
-}
-
-
-void tugboat_state::main_map(address_map &map)
-{
- map.global_mask(0x7fff);
- map(0x0000, 0x01ff).ram().share("ram");
- map(0x1060, 0x1061).w("aysnd", FUNC(ay8910_device::address_data_w));
- map(0x10a0, 0x10a1).w(FUNC(tugboat_state::hd46505_0_w)); /* scrolling is performed changing the start_addr register (0C/0D) */
- map(0x10c0, 0x10c1).w(FUNC(tugboat_state::hd46505_1_w));
- map(0x11e4, 0x11e7).rw("pia0", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
- map(0x11e8, 0x11eb).rw("pia1", FUNC(pia6821_device::read), FUNC(pia6821_device::write));
- //map(0x1700, 0x1fff).ram();
- map(0x18e0, 0x18ef).w(FUNC(tugboat_state::score_w));
- map(0x2000, 0x2fff).ram(); /* tilemap RAM */
- map(0x4000, 0x7fff).rom();
-}
-
-
-static INPUT_PORTS_START( tugboat )
- PORT_START("IN0")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
-
- PORT_START("IN1")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_2WAY
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_2WAY
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 )
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
-
- PORT_START("IN2")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
-
- PORT_START("IN3")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_IMPULSE(1)
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START1 )
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START2 )
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
-
- PORT_START("IN4")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNKNOWN )
- PORT_DIPNAME( 0x40, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x40, DEF_STR( On ) )
- PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNKNOWN )
-
- PORT_START("DSW")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_DIPNAME( 0x30, 0x10, DEF_STR( Coinage ) )
- PORT_DIPSETTING( 0x00, DEF_STR( 2C_1C ) )
- PORT_DIPSETTING( 0x10, DEF_STR( 1C_1C ) )
- PORT_DIPSETTING( 0x20, DEF_STR( 1C_2C ) )
- PORT_DIPSETTING( 0x30, DEF_STR( 1C_4C ) )
- PORT_DIPNAME( 0x40, 0x00, DEF_STR( Lives ) )
- PORT_DIPSETTING( 0x00, "3" )
- PORT_DIPSETTING( 0x40, "5" )
- PORT_DIPNAME( 0x80, 0x00, DEF_STR( Unknown ) )
- PORT_DIPSETTING( 0x00, DEF_STR( Off ) )
- PORT_DIPSETTING( 0x80, DEF_STR( On ) )
-INPUT_PORTS_END
-
-static INPUT_PORTS_START( noahsark )
- PORT_INCLUDE( tugboat )
-
- PORT_MODIFY("IN1")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY
- PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY
- PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY
-INPUT_PORTS_END
-
-
-static const gfx_layout charlayout =
-{
- 8,8,
- RGN_FRAC(1,1),
- 1,
- { 0 },
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
- 8*8
-};
-
-static const gfx_layout tilelayout =
-{
- 8,8,
- RGN_FRAC(1,3),
- 3,
- { RGN_FRAC(2,3), RGN_FRAC(1,3), RGN_FRAC(0,3) },
- { 0, 1, 2, 3, 4, 5, 6, 7 },
- { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
- 8*8
-};
-
-static GFXDECODE_START( gfx_tugboat )
- GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0x80, 16 )
- GFXDECODE_ENTRY( "gfx2", 0, tilelayout, 0x80, 16 )
- GFXDECODE_ENTRY( "gfx3", 0, charlayout, 0x00, 16 )
- GFXDECODE_ENTRY( "gfx4", 0, tilelayout, 0x00, 16 )
-GFXDECODE_END
-
-
-void tugboat_state::tugboat(machine_config &config)
-{
- M6502(config, m_maincpu, 2000000); /* 2 MHz ???? */
- m_maincpu->set_addrmap(AS_PROGRAM, &tugboat_state::main_map);
-
- pia6821_device &pia0(PIA6821(config, "pia0", 0));
- pia0.readpa_handler().set(FUNC(tugboat_state::input_r));
-
- pia6821_device &pia1(PIA6821(config, "pia1", 0));
- pia1.readpa_handler().set_ioport("DSW");
- pia1.writepb_handler().set(FUNC(tugboat_state::ctrl_w));
-
- SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
- m_screen->set_refresh_hz(60);
- m_screen->set_size(32*8,32*8);
- m_screen->set_visarea(1*8,31*8-1,2*8,30*8-1);
- m_screen->set_screen_update(FUNC(tugboat_state::screen_update));
- m_screen->set_palette(m_palette);
- m_screen->screen_vblank().set_inputline(m_maincpu, INPUT_LINE_NMI);
-
- GFXDECODE(config, m_gfxdecode, m_palette, gfx_tugboat);
- PALETTE(config, m_palette, FUNC(tugboat_state::tugboat_palette), 256);
-
- /* sound hardware */
- SPEAKER(config, "mono").front_center();
-
- AY8912(config, "aysnd", XTAL(10'000'000)/8).add_route(ALL_OUTPUTS, "mono", 0.35);
-}
-
-
-ROM_START( tugboat )
- ROM_REGION( 0x10000, "maincpu", 0 )
- ROM_LOAD( "u7.bin", 0x5000, 0x1000, CRC(e81d7581) SHA1(c76327e3b027a5a2af69f8cfafa1f828ad0ebdb1) )
- ROM_LOAD( "u8.bin", 0x6000, 0x1000, CRC(7525de06) SHA1(0722c7a0b89c55162227173679ffbe398ca350a2) )
- ROM_LOAD( "u9.bin", 0x7000, 0x1000, CRC(aa4ae687) SHA1(a212eed5d04d6197aa3484ff36059fd7998604a6) )
-
- ROM_REGION( 0x0800, "gfx1", ROMREGION_INVERT )
- ROM_LOAD( "u67.bin", 0x0000, 0x0800, CRC(601c425b) SHA1(13ed54ba1307ba3f779293d88c19d0c0f2d91a96) )
-
- ROM_REGION( 0x3000, "gfx2", ROMREGION_INVERT )
- ROM_LOAD( "u68.bin", 0x0000, 0x1000, CRC(d5835182) SHA1(f67c8f93e0d7dd1bf8e3a98756719d386c133d1c) )
- ROM_LOAD( "u69.bin", 0x1000, 0x1000, CRC(e6d25878) SHA1(de9096ef3108d031049be1e7f2c5e346d0bc0df1) )
- ROM_LOAD( "u70.bin", 0x2000, 0x1000, CRC(34ce2850) SHA1(8883126627ed8a1d2c3bed2a3d169ce35eafc8a3) )
-
- ROM_REGION( 0x0800, "gfx3", 0 )
- ROM_LOAD( "u168.bin", 0x0000, 0x0800, CRC(279042fd) SHA1(1361fff1bc532251bbd36b7b60776c2cc137cfba) ) /* labeled u-167 */
-
- ROM_REGION( 0x1800, "gfx4", 0 )
- ROM_LOAD( "u170.bin", 0x0000, 0x0800, CRC(64d9f4d7) SHA1(3ff7fc099023512c33ec4583e91e6cbab903e7a8) ) /* labeled u-168 */
- ROM_LOAD( "u169.bin", 0x0800, 0x0800, CRC(1a636296) SHA1(bcb18d714328ba3db2d16d74c47a985c16a0bbe2) ) /* labeled u-169 */
- ROM_LOAD( "u167.bin", 0x1000, 0x0800, CRC(b9c9b4f7) SHA1(6685d580ae150d7c67bac2786ee4b7a2c28eddc3) ) /* labeled u-170 */
-
- ROM_REGION( 0x0100, "proms", 0 )
- ROM_LOAD( "nt2_u128.clr", 0x0000, 0x0100, CRC(236672bf) SHA1(57482d0a23223ef7b211045ad28d3e41e90f961e) )
-ROM_END
-
-
-ROM_START( noahsark )
- ROM_REGION( 0x10000, "maincpu", 0 )
- ROM_LOAD( "u6.bin", 0x4000, 0x1000, CRC(3579eeac) SHA1(f54435ac6b31cf81342de83965cf8a8503b26eb8) )
- ROM_LOAD( "u7.bin", 0x5000, 0x1000, CRC(64b0afae) SHA1(1fcc17490d1290565be38a817f783604bcefb8be) )
- ROM_LOAD( "u8.bin", 0x6000, 0x1000, CRC(02d53f62) SHA1(e51a583a548b4bdaf43d376d5d276325ee448d49) )
- ROM_LOAD( "u9.bin", 0x7000, 0x1000, CRC(d425b61c) SHA1(a8d9562435cc910916df4cd7e958468d88ff92e7) )
-
- ROM_REGION( 0x0800, "gfx1", ROMREGION_INVERT )
- ROM_LOAD( "u67.bin", 0x0000, 0x0800, CRC(1a77605b) SHA1(8c25750f94895f5820ad4f1fa4ae1ea70ee0aee2) )
-
- ROM_REGION( 0x3000, "gfx2", ROMREGION_INVERT )
- ROM_LOAD( "u68.bin", 0x0000, 0x1000, CRC(6a66eac8) SHA1(3a13c2f5ef45cdd8b8b5db07d8c1417a3304723a) )
- ROM_LOAD( "u69.bin", 0x1000, 0x1000, CRC(fa2c279c) SHA1(332fcfcfe605c4132114399c32932507b16752e5) )
- ROM_LOAD( "u70.bin", 0x2000, 0x1000, CRC(dcabc7c5) SHA1(68abfdedea518e3a5c90f9f72173e8c05e190535) )
-
- ROM_REGION( 0x0800, "gfx3", 0 )
- ROM_LOAD( "u168.bin", 0x0000, 0x0800, CRC(7fc7280f) SHA1(93bf46e421b580edf81177db85cb220073761c57) ) /* labeled u-167 */
-
- ROM_REGION( 0x3000, "gfx4", 0 )
- ROM_LOAD( "u170.bin", 0x0000, 0x1000, CRC(ba36641c) SHA1(df206dc4b6f2da7b60bdaa72c8175de928a630a4) ) /* labeled u-168 */
- ROM_LOAD( "u169.bin", 0x1000, 0x1000, CRC(68c58207) SHA1(e09f9f8b5f1071fbf8a4883f75f296ec4bc0eca1) ) /* labeled u-169 */
- ROM_LOAD( "u167.bin", 0x2000, 0x1000, CRC(76f16c5b) SHA1(a8a8f0ad7dcc57c2bf518fc5e2509ed8fb87f403) ) /* labeled u-170 */
-
- ROM_REGION( 0x0100, "proms", 0 )
- ROM_LOAD( "u128.bin", 0x0000, 0x0100, CRC(816784bd) SHA1(47181f4a6ab35c46796ca1d8c130b76f404c188d) )
-ROM_END
-
-
-ROM_START( berenstn )
- ROM_REGION( 0x10000, "maincpu", 0 )
- ROM_LOAD( "u6.bin", 0x4000, 0x1000, CRC(e45275a2) SHA1(d788bc5a69b3cdb2596a3b354371ff88d39f6d46) )
- ROM_LOAD( "u7.bin", 0x5000, 0x1000, CRC(1984d787) SHA1(c13959c9be075400e9d1668b5404bc73f6db5fe4) )
- ROM_LOAD( "u8.bin", 0x6000, 0x1000, CRC(0c4d53b7) SHA1(45bd847fdb7bbfbe53d750003024ef3454faa6e6) )
- ROM_LOAD( "u9.bin", 0x7000, 0x1000, CRC(7e058e57) SHA1(e9506fa4ec693abf0dc4e4cbfd4b93bdbcfc9ba4) )
-
- ROM_REGION( 0x0800, "gfx1", ROMREGION_INVERT )
- ROM_LOAD( "u67.bin", 0x0000, 0x0800, CRC(1a77605b) SHA1(8c25750f94895f5820ad4f1fa4ae1ea70ee0aee2) )
-
- ROM_REGION( 0x3000, "gfx2", ROMREGION_INVERT )
- ROM_LOAD( "u68.bin", 0x0000, 0x1000, CRC(21bf375f) SHA1(52bc81a4f289a96edfab034445bcf639b1524ada) )
- ROM_LOAD( "u69.bin", 0x1000, 0x1000, CRC(9dc770f6) SHA1(5dc16fac72d68b521dbb415935f5e7f682c26d7f) )
- ROM_LOAD( "u70.bin", 0x2000, 0x1000, CRC(a810bd45) SHA1(8be531529174c5d4b4f164bd2397116b9d5350db) )
-
- ROM_REGION( 0x0800, "gfx3", 0 )
- ROM_LOAD( "u167.bin", 0x0000, 0x0800, CRC(7fc7280f) SHA1(93bf46e421b580edf81177db85cb220073761c57) )
-
- ROM_REGION( 0x3000, "gfx4", 0 )
- ROM_LOAD( "u168.bin", 0x0000, 0x0800, CRC(af532ba3) SHA1(b196e294eaf4c25549278fd040b1dad2799e18d5) )
- ROM_LOAD( "u169.bin", 0x1000, 0x0800, CRC(07b6e660) SHA1(c755f63cc7c566e200fc11199bfac06a7e8f89e4) )
- ROM_LOAD( "u170.bin", 0x2000, 0x0800, CRC(73261eff) SHA1(19edd6957fceb3df12fd29cd5e156a5eb1c70710) )
-
- ROM_REGION( 0x0100, "proms", 0 ) /* Same as Tugboat but is this actually correct? */
- ROM_LOAD( "n.t.2-031j.24s10", 0x0000, 0x0100, CRC(236672bf) SHA1(57482d0a23223ef7b211045ad28d3e41e90f961e) )
-ROM_END
-
-
-GAME( 1982, tugboat, 0, tugboat, tugboat, tugboat_state, empty_init, ROT90, "Enter-Tech, Ltd.", "Tugboat", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE )
-GAME( 1983, noahsark, 0, tugboat, noahsark, tugboat_state, empty_init, ROT90, "Enter-Tech, Ltd.", "Noah's Ark", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE )
-GAME( 1984, berenstn, 0, tugboat, noahsark, tugboat_state, empty_init, ROT90, "Enter-Tech, Ltd.", "The Berenstain Bears in Big Paw's Cave", MACHINE_IMPERFECT_GRAPHICS | MACHINE_WRONG_COLORS | MACHINE_SUPPORTS_SAVE )