/*************************************************************************** Tank Busters memory map driver by Jaroslaw 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 "driver.h" #include "cpu/z80/z80.h" #include "sound/ay8910.h" VIDEO_START( tankbust ); VIDEO_UPDATE( tankbust ); extern UINT8 *tankbust_txtram; WRITE8_HANDLER( tankbust_background_videoram_w ); READ8_HANDLER ( tankbust_background_videoram_r ); WRITE8_HANDLER( tankbust_background_colorram_w ); READ8_HANDLER ( tankbust_background_colorram_r ); WRITE8_HANDLER( tankbust_txtram_w ); READ8_HANDLER ( tankbust_txtram_r ); WRITE8_HANDLER( tankbust_xscroll_w ); WRITE8_HANDLER( tankbust_yscroll_w ); //port A of ay8910#0 static int latch; static TIMER_CALLBACK( soundlatch_callback ) { latch = param; } static WRITE8_HANDLER( tankbust_soundlatch_w ) { timer_call_after_resynch(space->machine, NULL, data,soundlatch_callback); } static READ8_DEVICE_HANDLER( tankbust_soundlatch_r ) { return latch; } //port B of ay8910#0 static UINT32 timer1=0; static READ8_DEVICE_HANDLER( tankbust_soundtimer_r ) { int ret; timer1++; ret = timer1; return ret; } static TIMER_CALLBACK( soundirqline_callback ) { //logerror("sound_irq_line write = %2x (after CPUs synced) \n",param); if ((param&1) == 0) cpu_set_input_line(machine->cpu[1], 0, HOLD_LINE); } static int e0xx_data[8] = { 0,0,0,0, 0,0,0,0 }; static WRITE8_HANDLER( tankbust_e0xx_w ) { e0xx_data[offset] = data; #if 0 popmessage("e0: %x %x (%x cnt) %x %x %x %x", e0xx_data[0],e0xx_data[1], e0xx_data[2],e0xx_data[3], e0xx_data[4],e0xx_data[5], e0xx_data[6] ); #endif switch (offset) { case 0: /* 0xe000 interrupt enable */ interrupt_enable_w(space,0,data); break; case 1: /* 0xe001 (value 0 then 1) written right after the soundlatch_w */ timer_call_after_resynch(space->machine, NULL, data,soundirqline_callback); break; case 2: /* 0xe002 coin counter */ 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 */ /* bank 2 at 0xa000-bfff = from 0x18000 when bit0=0 else from 0x1a000 */ memory_set_bankptr(space->machine, 1, memory_region(space->machine, "maincpu") + 0x10000 + ((data&1) * 0x4000) ); memory_set_bankptr(space->machine, 2, memory_region(space->machine, "maincpu") + 0x18000 + ((data&1) * 0x2000) ); /* verified (the game will reset after the "game over" otherwise) */ break; } } static READ8_HANDLER( debug_output_area_r ) { return e0xx_data[offset]; } static PALETTE_INIT( tankbust ) { 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 #if 1 //close one /* 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; #endif palette_set_color(machine,i,MAKE_RGB(r,g,b)); } } #if 0 static READ8_HANDLER( read_from_unmapped_memory ) { return 0xff; } #endif static UINT8 variable_data; static READ8_HANDLER( some_changing_input ) { variable_data += 8; return variable_data; } static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0000, 0x5fff) AM_ROM AM_RANGE(0x6000, 0x9fff) AM_READWRITE(SMH_BANK1, SMH_ROM) AM_RANGE(0xa000, 0xbfff) AM_READWRITE(SMH_BANK2, SMH_ROM) AM_RANGE(0xc000, 0xc7ff) AM_READWRITE(tankbust_background_videoram_r, tankbust_background_videoram_w) AM_BASE(&videoram) AM_RANGE(0xc800, 0xcfff) AM_READWRITE(tankbust_background_colorram_r, tankbust_background_colorram_w) AM_BASE(&colorram) AM_RANGE(0xd000, 0xd7ff) AM_READWRITE(tankbust_txtram_r, tankbust_txtram_w) AM_BASE(&tankbust_txtram) AM_RANGE(0xd800, 0xd8ff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size) AM_RANGE(0xe000, 0xe007) AM_READWRITE(debug_output_area_r, tankbust_e0xx_w) AM_RANGE(0xe800, 0xe800) AM_READ_PORT("INPUTS") AM_WRITE(tankbust_yscroll_w) AM_RANGE(0xe801, 0xe801) AM_READ_PORT("SYSTEM") AM_RANGE(0xe802, 0xe802) AM_READ_PORT("DSW") AM_RANGE(0xe801, 0xe802) AM_WRITE(tankbust_xscroll_w) AM_RANGE(0xe803, 0xe803) AM_READWRITE(some_changing_input, tankbust_soundlatch_w) /*unknown. Game expects this to change so this is not player input */ AM_RANGE(0xe804, 0xe804) AM_WRITE(SMH_NOP) /* watchdog ? ; written in long-lasting loops */ AM_RANGE(0xf000, 0xf7ff) AM_RAM //AM_RANGE(0xf800, 0xffff) AM_READ(read_from_unmapped_memory) /* a bug in game code ? */ ADDRESS_MAP_END static ADDRESS_MAP_START( port_map_cpu2, ADDRESS_SPACE_IO, 8 ) ADDRESS_MAP_GLOBAL_MASK(0xff) AM_RANGE(0x10, 0x10) AM_DEVWRITE("ay2", ay8910_data_w) AM_RANGE(0x30, 0x30) AM_DEVREADWRITE("ay2", ay8910_r, ay8910_address_w) AM_RANGE(0x40, 0x40) AM_DEVWRITE("ay1", ay8910_data_w) AM_RANGE(0xc0, 0xc0) AM_DEVREADWRITE("ay1", ay8910_r, ay8910_address_w) ADDRESS_MAP_END static ADDRESS_MAP_START( map_cpu2, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0000, 0x1fff) AM_READ(SMH_ROM) AM_RANGE(0x0000, 0x1fff) AM_WRITE(SMH_ROM) AM_RANGE(0x2000, 0x3fff) AM_WRITE(SMH_NOP) /* garbage, written in initialization loop */ //0x4000 and 0x4040-0x4045 seem to be used (referenced in the code) AM_RANGE(0x4000, 0x7fff) AM_WRITE(SMH_NOP) /* garbage, written in initialization loop */ AM_RANGE(0x8000, 0x87ff) AM_READ(SMH_RAM) AM_RANGE(0x8000, 0x87ff) AM_WRITE(SMH_RAM) ADDRESS_MAP_END 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( 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 static const ay8910_interface ay8910_config = { AY8910_LEGACY_OUTPUT, AY8910_DEFAULT_LOADS, DEVCB_HANDLER(tankbust_soundlatch_r), DEVCB_HANDLER(tankbust_soundtimer_r), DEVCB_NULL, DEVCB_NULL }; static MACHINE_RESET( tankbust ) { variable_data = 0x11; } static MACHINE_DRIVER_START( tankbust ) /* basic machine hardware */ MDRV_CPU_ADD("maincpu", Z80, 4000000) /* 4 MHz ? */ MDRV_CPU_PROGRAM_MAP(main_map,0) MDRV_CPU_VBLANK_INT("screen", irq0_line_hold) MDRV_CPU_ADD("sub", Z80, 4000000) /* 3.072 MHz ? */ MDRV_CPU_PROGRAM_MAP(map_cpu2,0) MDRV_CPU_IO_MAP(port_map_cpu2,0) MDRV_QUANTUM_TIME(HZ(6000)) MDRV_MACHINE_RESET( tankbust ) /* video hardware */ MDRV_SCREEN_ADD("screen", RASTER) MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_SIZE ( 64*8, 32*8 ) MDRV_SCREEN_VISIBLE_AREA ( 16*8, 56*8-1, 1*8, 31*8-1 ) // MDRV_SCREEN_VISIBLE_AREA ( 0*8, 64*8-1, 1*8, 31*8-1 ) MDRV_GFXDECODE( tankbust ) MDRV_PALETTE_LENGTH( 128 ) MDRV_PALETTE_INIT ( tankbust ) MDRV_VIDEO_START ( tankbust ) MDRV_VIDEO_UPDATE ( tankbust ) /* sound hardware */ MDRV_SPEAKER_STANDARD_MONO("mono") MDRV_SOUND_ADD("ay1", AY8910, 2000000) MDRV_SOUND_CONFIG(ay8910_config) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.10) MDRV_SOUND_ADD("ay2", AY8910, 2000000) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.10) MACHINE_DRIVER_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", ROMREGION_DISPOSE ) 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_DISPOSE | 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", ROMREGION_DISPOSE ) 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, 0, ROT90, "Valadon Automation", "Tank Busters", 0 )