// license:GPL-2.0+ // copyright-holders:Jarek Burczynski /*************************************************************************** Tank Busters memory map driver by Jarek Burczynski Note: To enter the test mode: reset the game and keep start1 and start2 buttons pressed. To do: - verify colors: prom to output mapping is unknown, resistor values are guess - remove the 'some_changing_input' hack (see below) - from time to time the game just hangs ***************************************************************************/ #include "emu.h" #include "includes/tankbust.h" #include "cpu/z80/z80.h" #include "sound/ay8910.h" #include "screen.h" #include "speaker.h" void tankbust_state::machine_start() { membank("bank1")->configure_entries(0, 2, memregion("maincpu")->base() + 0x10000, 0x4000); membank("bank2")->configure_entries(0, 2, memregion("maincpu")->base() + 0x18000, 0x2000); save_item(NAME(m_latch)); save_item(NAME(m_timer1)); save_item(NAME(m_e0xx_data)); save_item(NAME(m_variable_data)); save_item(NAME(m_irq_mask)); } //port A of ay8910#0 TIMER_CALLBACK_MEMBER(tankbust_state::soundlatch_callback) { m_latch = param; } WRITE8_MEMBER(tankbust_state::soundlatch_w) { machine().scheduler().synchronize(timer_expired_delegate(FUNC(tankbust_state::soundlatch_callback),this), data); } READ8_MEMBER(tankbust_state::soundlatch_r) { return m_latch; } //port B of ay8910#0 READ8_MEMBER(tankbust_state::soundtimer_r) { int ret; m_timer1++; ret = m_timer1; return ret; } TIMER_CALLBACK_MEMBER(tankbust_state::soundirqline_callback) { //logerror("sound_irq_line write = %2x (after CPUs synced) \n",param); if ((param & 1) == 0) m_subcpu->set_input_line(0, HOLD_LINE); } WRITE8_MEMBER(tankbust_state::e0xx_w) { m_e0xx_data[offset] = data; #if 0 popmessage("e0: %x %x (%x cnt) %x %x %x %x", m_e0xx_data[0], m_e0xx_data[1], m_e0xx_data[2], m_e0xx_data[3], m_e0xx_data[4], m_e0xx_data[5], m_e0xx_data[6] ); #endif switch (offset) { case 0: /* 0xe000 interrupt enable */ m_irq_mask = data & 1; break; case 1: /* 0xe001 (value 0 then 1) written right after the soundlatch_byte_w */ machine().scheduler().synchronize(timer_expired_delegate(FUNC(tankbust_state::soundirqline_callback),this), data); break; case 2: /* 0xe002 coin counter */ machine().bookkeeping().coin_counter_w(0, data&1); break; case 6: /* 0xe006 screen disable ?? or disable screen update */ /* program sets this to 0, clears screen memory, and sets this to 1 */ /* ???? */ break; case 7: /* 0xe007 bankswitch */ /* bank 1 at 0x6000-9fff = from 0x10000 when bit0=0 else from 0x14000 */ membank("bank1")->set_entry(data & 1); /* bank 2 at 0xa000-bfff = from 0x18000 when bit0=0 else from 0x1a000 */ membank("bank2")->set_entry(data & 1); /* verified (the game will reset after the "game over" otherwise) */ break; } } READ8_MEMBER(tankbust_state::debug_output_area_r) { return m_e0xx_data[offset]; } PALETTE_INIT_MEMBER(tankbust_state, tankbust) { const uint8_t *color_prom = memregion("proms")->base(); int i; for (i = 0; i < 128; i++) { int bit0,bit1,bit2,r,g,b; //7 6 5 4 3 2 1 0 //bb r r r g g g - bad (for sure - no green for tank) //bb g g g r r r - bad (for sure - no yellow, no red) //gg r r r b b b - bad //gg b b b r r r - bad //rr b b b g g g - bad //rr g g g b b b - very close (green,yellow,red present) //rr r g g g b b - bad //rr r g g b b b - bad //rr g g g b b r - bad //rr g g b b x x - bad (x: unused) //rr g g x x b b - bad but still close //rr g g r g b b - bad but still close //rr g g g r b b - bad but still close /* blue component */ bit0 = (color_prom[i] >> 0) & 0x01; bit1 = (color_prom[i] >> 1) & 0x01; bit2 = (color_prom[i] >> 2) & 0x01; b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* green component */ bit0 = (color_prom[i] >> 3) & 0x01; bit1 = (color_prom[i] >> 4) & 0x01; bit2 = (color_prom[i] >> 5) & 0x01; g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2; /* red component */ bit0 = (color_prom[i] >> 6) & 0x01; bit1 = (color_prom[i] >> 7) & 0x01; r = 0x55 * bit0 + 0xaa * bit1; palette.set_pen_color(i,rgb_t(r,g,b)); } } #if 0 READ8_MEMBER(tankbust_state::read_from_unmapped_memory) { return 0xff; } #endif READ8_MEMBER(tankbust_state::some_changing_input) { m_variable_data += 8; return m_variable_data; } void tankbust_state::main_map(address_map &map) { map(0x0000, 0x5fff).rom(); map(0x6000, 0x9fff).bankr("bank1"); map(0xa000, 0xbfff).bankr("bank2"); map(0xc000, 0xc7ff).ram().w(this, FUNC(tankbust_state::background_videoram_w)).share("videoram"); map(0xc800, 0xcfff).ram().w(this, FUNC(tankbust_state::background_colorram_w)).share("colorram"); map(0xd000, 0xd7ff).ram().w(this, FUNC(tankbust_state::txtram_w)).share("txtram"); map(0xd800, 0xd8ff).ram().share("spriteram"); map(0xe000, 0xe007).rw(this, FUNC(tankbust_state::debug_output_area_r), FUNC(tankbust_state::e0xx_w)); map(0xe800, 0xe800).portr("INPUTS").w(this, FUNC(tankbust_state::yscroll_w)); map(0xe801, 0xe801).portr("SYSTEM"); map(0xe802, 0xe802).portr("DSW"); map(0xe801, 0xe802).w(this, FUNC(tankbust_state::xscroll_w)); map(0xe803, 0xe803).rw(this, FUNC(tankbust_state::some_changing_input), FUNC(tankbust_state::soundlatch_w)); /*unknown. Game expects this to change so this is not player input */ map(0xe804, 0xe804).nopw(); /* watchdog ? ; written in long-lasting loops */ map(0xf000, 0xf7ff).ram(); //AM_RANGE(0xf800, 0xffff) AM_READ(read_from_unmapped_memory) /* a bug in game code ? */ } void tankbust_state::port_map_cpu2(address_map &map) { map.global_mask(0xff); map(0x10, 0x10).w("ay2", FUNC(ay8910_device::data_w)); map(0x30, 0x30).rw("ay2", FUNC(ay8910_device::data_r), FUNC(ay8910_device::address_w)); map(0x40, 0x40).w("ay1", FUNC(ay8910_device::data_w)); map(0xc0, 0xc0).rw("ay1", FUNC(ay8910_device::data_r), FUNC(ay8910_device::address_w)); } void tankbust_state::map_cpu2(address_map &map) { map(0x0000, 0x1fff).rom(); map(0x2000, 0x3fff).nopw(); /* garbage, written in initialization loop */ //0x4000 and 0x4040-0x4045 seem to be used (referenced in the code) map(0x4000, 0x7fff).nopw(); /* garbage, written in initialization loop */ map(0x8000, 0x87ff).readonly(); map(0x8000, 0x87ff).writeonly(); } static INPUT_PORTS_START( tankbust ) PORT_START("INPUTS") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNKNOWN ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("SYSTEM") PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_COIN1 ) PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_COIN2 ) PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_COIN3 ) PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_COIN4 ) PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_START1 ) PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_START2 ) PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) PORT_START("DSW") PORT_DIPNAME( 0x03, 0x03, DEF_STR( Difficulty ) ) PORT_DIPSETTING( 0x03, DEF_STR( Easy ) ) PORT_DIPSETTING( 0x02, DEF_STR( Hard ) ) PORT_DIPSETTING( 0x01, DEF_STR( Normal ) ) PORT_DIPSETTING( 0x00, DEF_STR( Very_Hard ) ) PORT_DIPNAME( 0x04, 0x00, DEF_STR( Demo_Sounds ) ) PORT_DIPSETTING( 0x04, DEF_STR( Off ) ) PORT_DIPSETTING( 0x00, DEF_STR( On ) ) PORT_DIPNAME( 0x08, 0x08, DEF_STR( Language ) ) PORT_DIPSETTING( 0x08, DEF_STR( English ) ) PORT_DIPSETTING( 0x00, DEF_STR( French ) ) PORT_DIPNAME( 0x10, 0x00, DEF_STR( Bonus_Life ) ) PORT_DIPSETTING( 0x10, "No Bonus" ) PORT_DIPSETTING( 0x00, "60000" ) PORT_DIPNAME( 0x20, 0x20, DEF_STR( Coinage ) ) PORT_DIPSETTING( 0x20, "1C/1C 1C/2C 1C/6C 1C/14C" ) PORT_DIPSETTING( 0x00, "2C/1C 1C/1C 1C/3C 1C/7C" ) PORT_DIPNAME( 0xc0, 0x40, DEF_STR( Lives ) ) PORT_DIPSETTING( 0xc0, "1" ) PORT_DIPSETTING( 0x80, "2" ) PORT_DIPSETTING( 0x40, "3" ) PORT_DIPSETTING( 0x00, "4" ) INPUT_PORTS_END static const gfx_layout spritelayout = { 32,32, /* 32*32 pixels */ 64, /* 64 sprites */ 4, /* 4 bits per pixel */ { 0, 8192*8*1, 8192*8*2, 8192*8*3 }, { 0, 1, 2, 3, 4, 5, 6, 7, 8*8+0, 8*8+1, 8*8+2, 8*8+3, 8*8+4, 8*8+5, 8*8+6, 8*8+7, 32*8+0, 32*8+1, 32*8+2, 32*8+3, 32*8+4, 32*8+5, 32*8+6, 32*8+7, 40*8+0, 40*8+1, 40*8+2, 40*8+3, 40*8+4, 40*8+5, 40*8+6, 40*8+7 }, { 7*8, 6*8, 5*8, 4*8, 3*8, 2*8, 1*8, 0*8, 23*8, 22*8, 21*8, 20*8, 19*8, 18*8, 17*8, 16*8, 71*8, 70*8, 69*8, 68*8, 67*8, 66*8, 65*8, 64*8, 87*8, 86*8, 85*8, 84*8, 83*8, 82*8, 81*8, 80*8 }, 128*8 /* every sprite takes 128 consecutive bytes */ }; static const gfx_layout charlayout = { 8,8, /* 8*8 pixels */ 2048, /* 2048 characters */ 3, /* 3 bits per pixel */ { 0, 16384*8*1, 16384*8*2 }, { 0, 1, 2, 3, 4, 5, 6, 7 }, { 7*8, 6*8, 5*8, 4*8, 3*8, 2*8, 1*8, 0*8 }, 8*8 /* every char takes 8 consecutive bytes */ }; static const gfx_layout charlayout2 = { 8,8, /* 8*8 pixels */ 256, /* 256 characters */ 1, /* 1 bit per pixel - the data repeats 4 times within one ROM */ { 0 }, /* , 2048*8*1, 2048*8*2, 2048*8*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 /* every char takes 8 consecutive bytes */ }; static GFXDECODE_START( gfx_tankbust ) GFXDECODE_ENTRY( "gfx1", 0, spritelayout, 0x00, 2 ) /* sprites 32x32 (2 * 16 colors) */ GFXDECODE_ENTRY( "gfx2", 0, charlayout, 0x20, 8 ) /* bg tilemap characters */ GFXDECODE_ENTRY( "gfx3", 0, charlayout2, 0x60, 16 ) /* txt tilemap characters*/ GFXDECODE_END void tankbust_state::machine_reset() { m_variable_data = 0x11; } INTERRUPT_GEN_MEMBER(tankbust_state::vblank_irq) { if(m_irq_mask) device.execute().set_input_line(0, HOLD_LINE); } MACHINE_CONFIG_START(tankbust_state::tankbust) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", Z80, XTAL(14'318'181)/2) /* Verified on PCB */ MCFG_DEVICE_PROGRAM_MAP(main_map) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", tankbust_state, vblank_irq) MCFG_DEVICE_ADD("sub", Z80, XTAL(14'318'181)/4) /* Verified on PCB */ // MCFG_DEVICE_ADD("sub", Z80, XTAL(14'318'181)/3) /* Accurate to audio recording, but apparently incorrect clock */ MCFG_DEVICE_PROGRAM_MAP(map_cpu2) MCFG_DEVICE_IO_MAP(port_map_cpu2) MCFG_QUANTUM_TIME(attotime::from_hz(6000)) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) MCFG_SCREEN_SIZE ( 64*8, 32*8 ) MCFG_SCREEN_VISIBLE_AREA ( 16*8, 56*8-1, 1*8, 31*8-1 ) // MCFG_SCREEN_VISIBLE_AREA ( 0*8, 64*8-1, 1*8, 31*8-1 ) MCFG_SCREEN_UPDATE_DRIVER(tankbust_state, screen_update) MCFG_SCREEN_PALETTE("palette") MCFG_DEVICE_ADD("gfxdecode", GFXDECODE, "palette", gfx_tankbust) MCFG_PALETTE_ADD( "palette", 128 ) MCFG_PALETTE_INIT_OWNER(tankbust_state, tankbust) /* sound hardware */ SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("ay1", AY8910, XTAL(14'318'181)/16) /* Verified on PCB */ MCFG_AY8910_PORT_A_READ_CB(READ8(*this, tankbust_state, soundlatch_r)) MCFG_AY8910_PORT_B_READ_CB(READ8(*this, tankbust_state, soundtimer_r)) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.10) MCFG_DEVICE_ADD("ay2", AY8910, XTAL(14'318'181)/16) /* Verified on PCB */ MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.10) MACHINE_CONFIG_END /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( tankbust ) ROM_REGION( 0x1c000, "maincpu", 0 ) ROM_LOAD( "a-s4-6.bin", 0x00000, 0x4000, CRC(8ebe7317) SHA1(bc45d530ad6335312c9c3efdcedf7acd2cdeeb55) ) ROM_LOAD( "a-s7-9.bin", 0x04000, 0x2000, CRC(047aee33) SHA1(62ee776c403b228e065baa9218f32597951ca935) ) ROM_LOAD( "a-s5_7.bin", 0x12000, 0x2000, CRC(dd4800ca) SHA1(73a6caa029c27fb45217f9372d9541c6fe206f08) ) /* banked at 0x6000-0x9fff */ ROM_CONTINUE( 0x10000, 0x2000) ROM_LOAD( "a-s6-8.bin", 0x16000, 0x2000, CRC(f8801238) SHA1(fd3abe18542660a8c31dc316012a99d48c9bb5aa) ) /* banked at 0x6000-0x9fff */ ROM_CONTINUE( 0x14000, 0x2000) // ROM_LOAD( "a-s5_7.bin", 0x10000, 0x4000, CRC(dd4800ca) SHA1(73a6caa029c27fb45217f9372d9541c6fe206f08) ) /* banked at 0x6000-0x9fff */ // ROM_LOAD( "a-s6-8.bin", 0x14000, 0x4000, CRC(f8801238) SHA1(fd3abe18542660a8c31dc316012a99d48c9bb5aa) ) /* banked at 0x6000-0x9fff */ ROM_LOAD( "a-s8-10.bin", 0x18000, 0x4000, CRC(9e826faa) SHA1(6a252428c69133d3e9d7a9938140d5ae37fb0c7d) ) /* banked at 0xa000-0xbfff */ ROM_REGION( 0x10000, "sub", 0 ) ROM_LOAD( "a-b3-1.bin", 0x0000, 0x2000, CRC(b0f56102) SHA1(4f427c3bd6131b7cba42a0e24a69bd1b6a1b0a3c) ) ROM_REGION( 0x8000, "gfx1", 0 ) ROM_LOAD( "a-d5-2.bin", 0x0000, 0x2000, CRC(0bbf3fdb) SHA1(035c2db6eca701be690042e006c0d07c90d752f1) ) /* sprites 32x32 */ ROM_LOAD( "a-d6-3.bin", 0x2000, 0x2000, CRC(4398dc21) SHA1(3b23433d0c9daa554ad6615af2fdec715e4e3794) ) ROM_LOAD( "a-d7-4.bin", 0x4000, 0x2000, CRC(aca197fc) SHA1(03ecd94b84a31389539074079ed7f2a500e588ab) ) ROM_LOAD( "a-d8-5.bin", 0x6000, 0x2000, CRC(1e6edc17) SHA1(4dbc91938c999348bcbd5f960fc3bb49f3174059) ) ROM_REGION( 0xc000, "gfx2", ROMREGION_INVERT ) ROM_LOAD( "b-m4-11.bin", 0x0000, 0x4000, CRC(eb88ee1f) SHA1(60ec2d77186c196a27278b0639cbfa838986e2e2) ) /* background tilemap characters 8x8 */ ROM_LOAD( "b-m5-12.bin", 0x4000, 0x4000, CRC(4c65f399) SHA1(72db15884f346c001d3b86cb33e3f6d339eedb56) ) ROM_LOAD( "b-m6-13.bin", 0x8000, 0x4000, CRC(a5baa413) SHA1(dc772042706c3a92594ee8422aafed77375c0632) ) ROM_REGION( 0x2000, "gfx3", 0 ) ROM_LOAD( "b-r3-14.bin", 0x0000, 0x2000, CRC(4310a815) SHA1(bf58a7a8d3f82fcaa0c46d9ebb13cac1231b80ad) ) /* text tilemap characters 8x8 */ ROM_REGION( 0x0080, "proms", 0 ) ROM_LOAD( "tb-prom.1s8", 0x0000, 0x0020, CRC(dfaa086c) SHA1(f534aedddd18addd0833a3a28a4297689c4a46ac) ) //sprites ROM_LOAD( "tb-prom.2r8", 0x0020, 0x0020, CRC(ec50d674) SHA1(64c8961eca33b23e14b7383eb7e64fcac8772ee7) ) //background ROM_LOAD( "tb-prom.3p8", 0x0040, 0x0020, CRC(3e70eafd) SHA1(b200350a3f6c166228706734419dd3ef1207eeef) ) //background palette 2 ?? ROM_LOAD( "tb-prom.4k8", 0x0060, 0x0020, CRC(624f40d2) SHA1(8421f1d774afc72e0817d41edae74a2837021a5f) ) //text ROM_END GAME( 1985, tankbust, 0, tankbust, tankbust, tankbust_state, empty_init, ROT90, "Valadon Automation", "Tank Busters", MACHINE_SUPPORTS_SAVE )