/******************************************** Laser Base / Future Flash driver IC marked as Z1 is probably protection device mapped in memory region f800-fbff (simil. 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 ********************************************/ #include "emu.h" #include "cpu/z80/z80.h" #include "deprecat.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) { } /* misc */ int m_count; /* video-related */ int m_vrambank; UINT8 m_vram1[0x8000]; UINT8 m_vram2[0x8000]; }; static VIDEO_START(laserbas) { laserbas_state *state = machine.driver_data(); state->save_item(NAME(state->m_vram1)); state->save_item(NAME(state->m_vram2)); } static SCREEN_UPDATE(laserbas) { laserbas_state *state = screen->machine().driver_data(); int x, y; for (y = 0; y < 256; y++) for(x = 0; x < 128; x++) { if (state->m_vram2[y * 128 + x] & 0xf) *BITMAP_ADDR16(bitmap, y, x * 2) = (state->m_vram2[y * 128 + x] & 0xf) + 16; else *BITMAP_ADDR16(bitmap, y, x * 2) = (state->m_vram1[y * 128 + x] & 0xf) + 16; if (state->m_vram2[y * 128 + x] >> 4) *BITMAP_ADDR16(bitmap, y, x * 2 + 1) = (state->m_vram2[y * 128 + x] >> 4) + 16; else *BITMAP_ADDR16(bitmap, y, x * 2 + 1) = (state->m_vram1[y * 128 + x] >> 4) + 16; } return 0; } static READ8_HANDLER(vram_r) { laserbas_state *state = space->machine().driver_data(); if(!state->m_vrambank) return state->m_vram1[offset]; else return state->m_vram2[offset]; } static WRITE8_HANDLER(vram_w) { laserbas_state *state = space->machine().driver_data(); if(!state->m_vrambank) state->m_vram1[offset] = data; else state->m_vram2[offset] = data; } static READ8_HANDLER( read_unk ) { laserbas_state *state = space->machine().driver_data(); state->m_count ^= 0x80; return state->m_count | 0x7f; } static WRITE8_HANDLER(palette_w) { palette_set_color_rgb(space->machine(), offset, pal3bit(data >> 5), pal3bit(data >> 2), pal2bit(data)); } static WRITE8_HANDLER(vrambank_w) { laserbas_state *state = space->machine().driver_data(); if ((offset & 0xf1) == 0x10) state->m_vrambank = data & 0x40; } static ADDRESS_MAP_START( laserbas_memory, AS_PROGRAM, 8 ) 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_RAM /* protection device */ AM_RANGE(0xfc00, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START( laserbas_io, AS_IO, 8 ) ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x00, 0x1f) AM_WRITE(vrambank_w) AM_RANGE(0x20, 0x20) AM_READ(read_unk) AM_WRITENOP//write = ram/rom bank ? at fc00-f800 ? AM_RANGE(0x21, 0x21) AM_READ_PORT("IN0") AM_RANGE(0x80, 0x9f) AM_WRITE(palette_w) ADDRESS_MAP_END static INPUT_PORTS_START( laserbas ) PORT_START("IN0") PORT_DIPNAME( 0x01, 0x00, "0-0" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x01, DEF_STR( On ) ) PORT_DIPNAME( 0x02, 0x00, "0-1" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x02, DEF_STR( On ) ) PORT_DIPNAME( 0x04, 0x00, "0-2" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x04, DEF_STR( On ) ) PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_START1 ) PORT_DIPNAME( 0x010, 0x10, "0-3" ) PORT_DIPSETTING( 0x00, DEF_STR( Off ) ) PORT_DIPSETTING( 0x010, DEF_STR( On ) ) PORT_DIPNAME( 0x020, 0x20, "Test Mode" ) PORT_DIPSETTING( 0x20, DEF_STR( Off ) ) PORT_DIPSETTING( 0x000, DEF_STR( On ) ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_COIN2 ) INPUT_PORTS_END static INTERRUPT_GEN( laserbas_interrupt ) { if(device->machine().primary_screen->vblank()) device_set_input_line(device, 0, HOLD_LINE); else device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE); } static MACHINE_START( laserbas ) { laserbas_state *state = machine.driver_data(); state->save_item(NAME(state->m_vrambank)); state->save_item(NAME(state->m_count)); } static MACHINE_RESET( laserbas ) { laserbas_state *state = machine.driver_data(); state->m_vrambank = 0; state->m_count = 0; } 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_HACK(laserbas_interrupt,2) MCFG_MACHINE_START(laserbas) MCFG_MACHINE_RESET(laserbas) MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) 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(laserbas) MCFG_PALETTE_LENGTH(32) MCFG_VIDEO_START(laserbas) 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, 0, ROT270, "Hoei (Amstar license)", "Laser Base (set 1)", GAME_NO_SOUND | GAME_NOT_WORKING | GAME_SUPPORTS_SAVE ) GAME( 1981, laserbasa,laserbas, laserbas, laserbas, 0, ROT270, "Hoei (Amstar license)", "Laser Base (set 2)", GAME_NO_SOUND | GAME_NOT_WORKING | GAME_SUPPORTS_SAVE ) GAME( 1981, futflash, laserbas, laserbas, laserbas, 0, ROT270, "Hoei", "Future Flash", GAME_NO_SOUND | GAME_NOT_WORKING | GAME_SUPPORTS_SAVE )