/******************************************** Laser Base / Future Flash driver IC marked as Z1 is probably protection device mapped in memory region f800-fbff (similar to the one used in Parallel Turn) Reads form this device depends on previous writes (adr, data), address and previous operation (read or write). Pinout is almost identical to 2716 - type EPROM, except separated /RD and /WR signals and lacks of /CS Tomasz Slanina analog [at] op.pl ============================================ DASM notes: 0x100: check if test mode bit is active. 0x3ae8: ? 0x3aec: tests 0xfc00 work ram ONLY, resets if fails 0x3afe: fill 0xfc00-0xffff to zero 0x20dc: writes ROM 0x3146 to prot RAM 0xf800-0xfbff 0x20e9: reads from 0xfa47, A = (n & 0x8) | 0x80 then HL = 0x0200 | A 0x2cef: unknown, reads from 0x02** to 0x2d00, fancy ROM checksum? ... 0x0577 ********************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "video/mc6845.h" #include "machine/pit8253.h" class laserbas_state : public driver_device { public: laserbas_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_protram(*this, "protram"){ } /* misc */ int m_count; /* video-related */ int m_vrambank; UINT8 m_vram1[0x8000]; UINT8 m_vram2[0x8000]; required_shared_ptr m_protram; DECLARE_READ8_MEMBER(vram_r); DECLARE_WRITE8_MEMBER(vram_w); DECLARE_READ8_MEMBER(read_unk); DECLARE_WRITE8_MEMBER(vrambank_w); DECLARE_READ8_MEMBER(protram_r); DECLARE_WRITE8_MEMBER(protram_w); virtual void machine_start(); virtual void machine_reset(); virtual void video_start(); UINT32 screen_update_laserbas(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); }; void laserbas_state::video_start() { save_item(NAME(m_vram1)); save_item(NAME(m_vram2)); } UINT32 laserbas_state::screen_update_laserbas(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { int x, y; for (y = 0; y < 256; y++) for(x = 0; x < 128; x++) { if (m_vram2[y * 128 + x] & 0xf) bitmap.pix16(y, x * 2) = (m_vram2[y * 128 + x] & 0xf); else bitmap.pix16(y, x * 2) = (m_vram1[y * 128 + x] & 0xf) + 16; if (m_vram2[y * 128 + x] >> 4) bitmap.pix16(y, x * 2 + 1) = (m_vram2[y * 128 + x] >> 4); else bitmap.pix16(y, x * 2 + 1) = (m_vram1[y * 128 + x] >> 4) + 16; } return 0; } READ8_MEMBER(laserbas_state::vram_r) { if(!m_vrambank) return m_vram1[offset]; else return m_vram2[offset]; } WRITE8_MEMBER(laserbas_state::vram_w) { if(!m_vrambank) m_vram1[offset] = data; else m_vram2[offset] = data; } #if 0 READ8_MEMBER(laserbas_state::read_unk) { m_count ^= 0x80; return m_count | 0x7f; } #endif WRITE8_MEMBER(laserbas_state::vrambank_w) { /* either bit 2 or 3 controls flip screen */ m_vrambank = data & 0x40; } READ8_MEMBER(laserbas_state::protram_r) { return m_protram[offset]; } WRITE8_MEMBER(laserbas_state::protram_w) { m_protram[offset] = data; } static ADDRESS_MAP_START( laserbas_memory, AS_PROGRAM, 8, laserbas_state ) //ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0x3fff) AM_ROM AM_RANGE(0x4000, 0xbfff) AM_READWRITE(vram_r, vram_w) AM_RANGE(0xc000, 0xf7ff) AM_ROM AM_RANGE(0xf800, 0xfbff) AM_READWRITE(protram_r, protram_w) AM_SHARE("protram") /* protection device */ AM_RANGE(0xfc00, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START( laserbas_io, AS_IO, 8, laserbas_state ) ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x00) AM_DEVWRITE("crtc", mc6845_device, address_w) AM_RANGE(0x01, 0x01) AM_DEVWRITE("crtc", mc6845_device, register_w) AM_RANGE(0x10, 0x10) AM_WRITE(vrambank_w) AM_RANGE(0x20, 0x20) AM_READ_PORT("IN1") // DSW + something else? AM_RANGE(0x21, 0x21) AM_READ_PORT("IN0") AM_RANGE(0x22, 0x22) AM_READ_PORT("IN2") // AM_RANGE(0x23, 0x23) AM_WRITE_LEGACY(test_w) bit 2 presumably is a mux for 0x20? AM_RANGE(0x40, 0x43) AM_DEVREADWRITE_LEGACY("pit0", pit8253_r, pit8253_w) AM_RANGE(0x44, 0x47) AM_DEVREADWRITE_LEGACY("pit1", pit8253_r, pit8253_w) AM_RANGE(0x80, 0x9f) AM_RAM_WRITE(paletteram_RRRGGGBB_byte_w) AM_SHARE("paletteram") ADDRESS_MAP_END static INPUT_PORTS_START( laserbas ) PORT_START("IN0") PORT_DIPNAME( 0x01, 0x01, "0-0" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, "0-1" ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_START2 ) PORT_DIPNAME( 0x10, 0x10, "0-3" ) // another coin chute PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, "Test Mode" ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_START("IN1") // DSW PORT_DIPNAME( 0x01, 0x01, "IN1" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x01, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x02, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x04, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x08, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x10, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x20, DEF_STR( On ) ) PORT_DIPNAME( 0xc0, 0xc0, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0xc0, DEF_STR( 1C_1C ) ) PORT_DIPSETTING( 0x80, DEF_STR( 1C_2C ) ) PORT_DIPSETTING( 0x40, DEF_STR( 1C_3C ) ) PORT_DIPSETTING( 0x00, DEF_STR( 1C_6C ) ) PORT_START("IN2") PORT_DIPNAME( 0x01, 0x01, "IN2" ) PORT_DIPSETTING( 0x01, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x02, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x02, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x04, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x08, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x10, 0x10, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x10, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x40, 0x40, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x40, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x80, 0x80, DEF_STR( Unknown ) ) PORT_DIPSETTING( 0x80, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) INPUT_PORTS_END void laserbas_state::machine_start() { save_item(NAME(m_vrambank)); save_item(NAME(m_count)); } void laserbas_state::machine_reset() { m_vrambank = 0; m_count = 0; } static MC6845_INTERFACE( mc6845_intf ) { "screen", /* screen we are acting on */ false, /* show border area */ 8, /* number of pixels per video memory address */ NULL, /* before pixel update callback */ NULL, /* row update callback */ NULL, /* after pixel update callback */ DEVCB_NULL, /* callback for display state changes */ DEVCB_NULL, /* callback for cursor state changes */ DEVCB_NULL, /* HSYNC callback */ DEVCB_NULL, /* VSYNC callback */ NULL /* update address callback */ }; /* TODO: clocks aren't known */ static const struct pit8253_config laserbas_pit8253_intf_0 = { { { 31250, DEVCB_NULL, DEVCB_NULL }, { 31250, DEVCB_NULL, DEVCB_NULL }, { 31250, DEVCB_NULL, DEVCB_NULL } } }; static const struct pit8253_config laserbas_pit8253_intf_1 = { { { 31250, DEVCB_NULL, DEVCB_NULL }, { 31250, DEVCB_NULL, DEVCB_NULL }, { 31250, DEVCB_NULL, DEVCB_NULL } } }; static MACHINE_CONFIG_START( laserbas, laserbas_state ) MCFG_CPU_ADD("maincpu", Z80, 4000000) MCFG_CPU_PROGRAM_MAP(laserbas_memory) MCFG_CPU_IO_MAP(laserbas_io) MCFG_CPU_VBLANK_INT_DRIVER("screen", laserbas_state, irq0_line_hold) MCFG_PIT8253_ADD("pit0", laserbas_pit8253_intf_0) MCFG_PIT8253_ADD("pit1", laserbas_pit8253_intf_1) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) MCFG_SCREEN_SIZE(32*8, 32*8) MCFG_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 0*8, 32*8-1) MCFG_SCREEN_UPDATE_DRIVER(laserbas_state, screen_update_laserbas) MCFG_MC6845_ADD("crtc", H46505, 3000000/4, mc6845_intf) /* unknown clock, hand tuned to get ~60 fps */ MCFG_PALETTE_LENGTH(32) MACHINE_CONFIG_END /* Amstar LaserBase 1981 (Hoei) XBC-101-00-1 - CPU board Z80A (D780C-1) 2 NB5K8253 2 2114 Rams 8 Dipswitches XBC-102-01-1 - RAM board? HD46505R 32 MB8118 Rams ------------------------------------ Filename Label Type CSum Description --------- ----- ------ ---- ----------------------------- MB8532.1 1 2532 9316 MB8532.2 2 2532 5662 MB8532.3 3 2532 7E9F MB8532.4 4 2532 7CAD MB8532.5 5 2532 C7D4 (Marked F.F.) MB8532.6 6 2532 16BE MB8532.7 7 2532 CF6C (Marked F.F.) MB8716.8 8 2716 9601 (Marked F.F.) TI2716.Z1 Z1 TI2716 D925 --------- ----- ------ ---- ----------------------------- I believe the F.F. markings on these chips show that these roms have been changed to Future Flash. It is unknown what the Z1 chip is, but the label screened on the board under the socket says 2716. All the identifying numbers have been scratched off and has Z1 stamped on it. It appears that each one was then numbered by hand in red marker and stamped with white ink with Z1. The Z1 chip was read from 3 different boards, it is Valid. The chips were numbered 69, 82 & 624, all three read the same. Turns out it was a TI2716. The TI chip has A10 on a different pin than a standard 2716. */ ROM_START( laserbas ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "mb8532.1", 0x0000, 0x1000, CRC(ef85e0c5) SHA1(c26da919c206a23eb6e53ffe39acd5a5dfd47c18) ) ROM_LOAD( "mb8532.2", 0x1000, 0x1000, CRC(0ba2236c) SHA1(416e4be957c395b05537d2e513e0c4561d8ca7c5) ) ROM_LOAD( "mb8532.3", 0x2000, 0x1000, CRC(83998e0b) SHA1(ac435fb8dd67aec0737d6c750c527841b2b91a5b) ) ROM_LOAD( "mb8532.4", 0x3000, 0x1000, CRC(00f9d909) SHA1(90b800cc5fcea53454584f8ad93eebbd193bdd21) ) ROM_LOAD( "lb2532.5", 0xc000, 0x1000, CRC(6459073e) SHA1(78b8a23534826dd2d3b3c6c5d5708c8a78a4b6bf) ) ROM_LOAD( "lb2532.6", 0xd000, 0x1000, CRC(a2dc1e7e) SHA1(78643a3aa852c73dab12e09a6cfc53141c936d12) ) ROM_LOAD( "mb8532.7", 0xe000, 0x1000, CRC(9d2148d7) SHA1(24954d82a09d9fcfdc61e91b7c824daa5dd701c3) ) ROM_LOAD( "mb8516.8", 0xf000, 0x0800, CRC(623f558f) SHA1(be6c6565df658555f21c43a8c2459cf399794a84) ) ROM_END ROM_START( laserbasa ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "2732.u1", 0x0000, 0x1000, CRC(f3ab00dc) SHA1(4730b13b55c93c71ed483463e180e71e506cfbd6) ) ROM_LOAD( "2732.u2", 0x1000, 0x1000, CRC(0ba2236c) SHA1(416e4be957c395b05537d2e513e0c4561d8ca7c5) ) ROM_LOAD( "mb8532.u3", 0x2000, 0x1000, CRC(c58a7745) SHA1(382e2235d89520860335c1c2760339e116c0466f) ) ROM_LOAD( "mbm2732.u4", 0x3000, 0x1000, CRC(00f9d909) SHA1(90b800cc5fcea53454584f8ad93eebbd193bdd21) ) ROM_LOAD( "2732.u5", 0xc000, 0x1000, CRC(6459073e) SHA1(78b8a23534826dd2d3b3c6c5d5708c8a78a4b6bf) ) ROM_LOAD( "2732.u6", 0xd000, 0x1000, CRC(a2dc1e7e) SHA1(78643a3aa852c73dab12e09a6cfc53141c936d12) ) ROM_LOAD( "2732.u7", 0xe000, 0x1000, CRC(9d2148d7) SHA1(24954d82a09d9fcfdc61e91b7c824daa5dd701c3) ) ROM_LOAD( "mb8516.u8", 0xf000, 0x0800, CRC(623f558f) SHA1(be6c6565df658555f21c43a8c2459cf399794a84) ) ROM_END /* It was unclear what type of device FF.9 was. The silkscreen on the PCB said 2716, but the device is a masked ROM with its identifying marks rubbed off. I dumped it as a 2716 (FF.9), a 2532 like the others (FF.9A) and a 2732 (FF.9B). */ ROM_START( futflash ) ROM_REGION( 0x10000, "maincpu", 0 ) ROM_LOAD( "ff.1", 0x0000, 0x1000, CRC(bcd6b998) SHA1(4a210c40ce6015e2b921558b7571b7f2a27e1815) ) ROM_LOAD( "ff.2", 0x1000, 0x1000, CRC(1b1f6953) SHA1(8cd7b7e2236700ce63c60b4d2286099c8091bdbd) ) ROM_LOAD( "ff.3", 0x2000, 0x1000, CRC(30008f04) SHA1(e03b2dbcb6d2615650cdd47ecf1d587906ce149b) ) ROM_LOAD( "ff.4", 0x3000, 0x1000, CRC(e559aa12) SHA1(0fecfb60b0147e8060c640f684f69503478200ff) ) ROM_LOAD( "ff.5", 0xc000, 0x1000, CRC(6459073e) SHA1(78b8a23534826dd2d3b3c6c5d5708c8a78a4b6bf) ) ROM_LOAD( "ff.6", 0xd000, 0x1000, CRC(a8b17f49) SHA1(aea349bd19d001233bfb1805e586c950275010b4) ) ROM_LOAD( "ff.7", 0xe000, 0x1000, CRC(9d2148d7) SHA1(24954d82a09d9fcfdc61e91b7c824daa5dd701c3) ) ROM_LOAD( "ff.8", 0xf000, 0x0800, CRC(623f558f) SHA1(be6c6565df658555f21c43a8c2459cf399794a84) ) ROM_END GAME( 1981, laserbas, 0, laserbas, laserbas, driver_device, 0, ROT270, "Hoei (Amstar license)", "Laser Base (set 1)", GAME_NO_SOUND | GAME_NOT_WORKING | GAME_SUPPORTS_SAVE ) GAME( 1981, laserbasa,laserbas, laserbas, laserbas, driver_device, 0, ROT270, "Hoei (Amstar license)", "Laser Base (set 2)", GAME_NO_SOUND | GAME_NOT_WORKING | GAME_SUPPORTS_SAVE ) GAME( 1981, futflash, laserbas, laserbas, laserbas, driver_device, 0, ROT270, "Hoei", "Future Flash", GAME_NO_SOUND | GAME_NOT_WORKING | GAME_SUPPORTS_SAVE )