/* Merit MSX Video based games The actual name of the hardware is unknown. Merit have several boards with the same basic specification. Main CPU: 1xZ80B Sound: 1xYM2149F Video: 2xYamaha V9938 (MSX2 video chip!) Other: 2xZ80APIO Other components vary, however, the MegaTouch games appear to use a Dallas chip for protection The later PCBs are of a different design use less roms of a higher capacity, however they still have the same basic chips. Some of the readmes with the sets give inaccurate information. Known Games using this basic hardware: Type 1: Pitboss II (c)1988 Super Pitboss (c)19?? Type 2: Pitboss Megastar (c)1994 Type 3: Megatouch 3 (c)1995 Megatouch 5 (c)1997 This is currently just a placeholder for games using this hardware, everything still to do */ #include "driver.h" static VIDEO_START(meritm) { } static VIDEO_UPDATE(meritm) { return 0; } static ADDRESS_MAP_START( readmem, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0000, 0x7fff) AM_READ(MRA8_ROM) ADDRESS_MAP_END static ADDRESS_MAP_START( writemem, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x0000, 0x7fff) AM_WRITE(MWA8_ROM) ADDRESS_MAP_END static INPUT_PORTS_START( meritm ) INPUT_PORTS_END static MACHINE_DRIVER_START( meritm ) /* basic machine hardware */ MDRV_CPU_ADD(Z80,6000000) MDRV_CPU_PROGRAM_MAP(readmem,writemem) // MDRV_CPU_VBLANK_INT(irq0_line_hold,1) MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_VBLANK_TIME(DEFAULT_60HZ_VBLANK_DURATION) /* video hardware */ MDRV_VIDEO_ATTRIBUTES(VIDEO_TYPE_RASTER ) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_SIZE(256, 256) MDRV_SCREEN_VISIBLE_AREA(0, 256-1, 16, 256-16-1) MDRV_PALETTE_LENGTH(0x100) /* no gfx decode, MSX video chip doesn't use tiles, roms are memory mapped */ MDRV_VIDEO_START(meritm) MDRV_VIDEO_UPDATE(meritm) MACHINE_DRIVER_END /* Type 1 */ /* Pit Boss II - Merit Industries Inc. 1988 ---------------------------------------- All eproms are 27C512 One 8 bank dip switch. Two YAMAHA V9938 Video Processors. 21.47727 MHz Crystal CPU Z80 Audio AY8930 Two Z80A-PIO One bq4010YMA-150 NVRAM Eight V53C464AP80 (41464) RAMS One PAL16L8AN One PAL20L10NC */ ROM_START( pitboss2 ) ROM_REGION( 0x80000, REGION_CPU1, 0 ) ROM_LOAD( "u9", 0x00000, 0x10000, CRC(a1b6ac15) SHA1(b7b395f3e7e14dbb84003e03bf7d054e795a7211) ) ROM_LOAD( "u10", 0x10000, 0x10000, CRC(207aa83c) SHA1(1955d75b9e561312e98831571c9853579ded3734) ) ROM_LOAD( "u11", 0x20000, 0x10000, CRC(2052e043) SHA1(36b6cbc5712fc736c748a68bd12675291eae669d) ) ROM_LOAD( "u12", 0x30000, 0x10000, CRC(33653f16) SHA1(57b9822499324502d66dc5a40e662596e5336943) ) ROM_LOAD( "u13", 0x40000, 0x10000, CRC(4f139e88) SHA1(425dd34804cc614aa93a468d2ba3e16de62f099c) ) ROM_LOAD( "u14", 0x50000, 0x10000, CRC(a58078cd) SHA1(a028be67fa05670a689144dfb9c9da51c5732389) ) ROM_LOAD( "u15", 0x60000, 0x10000, CRC(239b5d03) SHA1(fffb69cd7af215445da2b1281bcbc5f4fb6cfcc3) ) ROM_LOAD( "u16", 0x70000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) ROM_END ROM_START( spitboss ) ROM_REGION( 0x80000, REGION_CPU1, 0 ) ROM_LOAD( "u9-0a.rom", 0x00000, 0x10000, CRC(e0c45c9c) SHA1(534bff67c8fee08f1c348275de8977659efa9f69) ) ROM_LOAD( "u10.rom", 0x10000, 0x10000, CRC(ed010c58) SHA1(02750944a28c1c27ce2a9904d11b7e46272a940e) ) ROM_LOAD( "u11-0a.rom", 0x20000, 0x10000, CRC(0c65fa86) SHA1(7906a8d615116ca67bf370dfb2da8cb2389a313d) ) ROM_LOAD( "u12.rom", 0x30000, 0x10000, CRC(0cf95b0e) SHA1(c6ffc13703892b9ae0da39a02db37c4ec890f79e) ) ROM_LOAD( "u13", 0x40000, 0x10000, CRC(4f139e88) SHA1(425dd34804cc614aa93a468d2ba3e16de62f099c) ) // matches pitboss2 ROM_LOAD( "u14", 0x50000, 0x10000, CRC(a58078cd) SHA1(a028be67fa05670a689144dfb9c9da51c5732389) ) // matches pitboss2 ROM_LOAD( "u15", 0x60000, 0x10000, CRC(239b5d03) SHA1(fffb69cd7af215445da2b1281bcbc5f4fb6cfcc3) ) // matches pitboss2 ROM_LOAD( "u16", 0x70000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) // matches pitboss2 ROM_END /* Type 2 */ /* Pit Boss Megastar - Merit Industries Inc. 1994 Games are: Great Solitaire, Run 21 and Trivia Whiz 2000. ------------------------------------------------------- Some of the pinouts probably flash lighted buttons as most Merit games have this feature. ------------------------------------------------------- EPROMS 1,2, and 3 are 27C2001's EPROMS 4 through 9 are 27C512's One 8 bank dip switch. Two YAMAHA V9938 Video Processors. 21.47727 MHz Crystal tied into pin 63 on both the V9938's CPU Z80B Audio YM2149F Two Z80A-PIO One Goldstar GM76C88L-15 (6264) SRAM Eight V53C464AP80 (41464) RAMS One PALCE16V8H-25PC/4 One GAL22V10B chaneman Sept.23 2004 */ ROM_START( pitbossm ) ROM_REGION( 0x80000, REGION_CPU1, 0 ) ROM_LOAD( "4", 0x00000, 0x10000, CRC(55e14fb1) SHA1(ec29764d1b63360f64b82452e0db8054b99fcca0) ) ROM_LOAD( "5", 0x10000, 0x10000, CRC(853a1a99) SHA1(45e33442aa7e51c05c9ac8b8458937ee3ff4c21d) ) ROM_LOAD( "6", 0x20000, 0x10000, CRC(47a9dfc7) SHA1(eca100003f5605bcf405f610a0458ccb67894d35) ) ROM_LOAD( "7", 0x30000, 0x10000, CRC(b9fb4203) SHA1(84b514d9739d9c2ab1081cfc7cdedb41155ee038) ) ROM_LOAD( "8", 0x40000, 0x10000, CRC(574fb3c7) SHA1(213741df3055b97ddd9889c2aa3d3e863e2c86d3) ) // == u16 on pitboss2/spitboss ROM_LOAD( "9", 0x50000, 0x10000, CRC(27034061) SHA1(cff6be592a4a3ab01c204b081470f224e6186c4d) ) ROM_REGION( 0xc0000, REGION_USER1, 0 ) // extra data / extra banks? ROM_LOAD( "1", 0x00000, 0x40000, CRC(590a1565) SHA1(b80ea967b6153847b2594e9c59bfe87559022b6c) ) ROM_LOAD( "2", 0x40000, 0x40000, CRC(606f1656) SHA1(7f1e3a698a34d3c3b8f9f2cd8d5224b6c096e941) ) ROM_LOAD( "3", 0x80000, 0x40000, CRC(35f4ca46) SHA1(87917b3017f505fae65d6bfa2c7d6fb503c2da6a) ) ROM_END /* Type 3 */ /* Mega Touch 3 by Merit Industries Dumped by NAZ! on 9/20/1998 System Info ----------- This is a counter top Touch screen game. processor.. Z80 sound processor- YM2149 other chips- two Yamaha V9938 one LM1203 one PC165500N one PB255a or L5220574 One Dallas DS1204 Data Key One dallas DS1225Y 16k Non-volitile RAM Two Z80APIO */ ROM_START( megat3 ) ROM_REGION( 0x180000, REGION_CPU1, 0 ) ROM_LOAD( "megat3.u38", 0x00000, 0x80000, CRC(85f48b91) SHA1(7a38644ac7ee55a254c037122af919fb268744a1) ) ROM_LOAD( "megat3.u37", 0x00000, 0x80000, CRC(96680164) SHA1(dfb8e07ba0e87316a947238e7a00fbf4d6ed5fe4) ) ROM_LOAD( "megat3.u36", 0x00000, 0x80000, CRC(96bb501e) SHA1(f48ef238e8543676c42e3b85464a25ac179dcdd1) ) ROM_REGION( 0x80000, REGION_USER1, 0 ) // extra data / extra banks? ROM_LOAD( "megat3.u32", 0x00000, 0x80000, CRC(ac969296) SHA1(7e09e9141637339b83c21f2488560cdf8a460069) ) ROM_END /* Mega Touch 5 by Merit Industries Dumped by NAZ! on 9/20/1998 System Info ----------- This is a counter top Touch screen game. processor.. Z80 sound processor- YM2149 other chips- two Yamaha V9938 one LM1203 one PC165500N one PB255a or L5220574 One Dallas DS1204 Data Key One dallas DS1230Y 32k Non-volitile RAM Two Z80APIO */ ROM_START( megat5 ) ROM_REGION( 0x180000, REGION_CPU1, 0 ) ROM_LOAD( "megat5.u38", 0x00000, 0x80000, CRC(018e36c7) SHA1(8e9b457238a40b10d59887d13bac9c0a05c73614) ) ROM_LOAD( "megat5.u37", 0x00000, 0x80000, CRC(b713a1c5) SHA1(d6ccba2ea90fd0e2ecf15249514231eed54000c1) ) ROM_LOAD( "megat5.u36", 0x00000, 0x80000, CRC(0bed9e27) SHA1(1414385ce562b127e1ddeccc20ea4ff2a7098b7e) ) ROM_REGION( 0x80000, REGION_USER1, 0 ) // extra data / extra banks? ROM_LOAD( "megat5.u32", 0x00000, 0x80000, CRC(89932443) SHA1(68d2fbf2a5050fc5371595a105fe06f4276b0b67) ) ROM_END /* Megatouch 6 - Merit 1998 -------------------------------- CPU: 1 Z80 1 8255 1 16550 2 x Z80 PIO 2 x V9938 Memory: 2 x V53C8256HP45 256K X 8 Fast Page Mode CMOS DRAM 1 DS1230 nv ram Sound: YM2149 Actual rom labels: ------------------ 9255-60-01 U32-R0 = 27C801 C1997 MII QS9255-08 U36-R0 = 27C040 C1998 MII QS9255-08 U37-R0 = 27C801 C1998 MII 9255-80-01 U36-R0 = 27C801 C1998 MII PAL: SC39440A.u19 = PALCE22V10H-25PC/4 SC3980.u40 = PALCE16V8H-25 SC39810A.u15 = PALCE16V8H-25 SC3943.u20 = ATF16V8B25PC */ ROM_START( megat6 ) ROM_REGION( 0x280000, REGION_CPU1, 0 ) ROM_LOAD( "u38-r0", 0x000000, 0x100000, CRC(3df6b840) SHA1(31ba1ac04eed3e76cdf637507dedcc5f7e22c919) ) ROM_LOAD( "u37-r0", 0x100000, 0x100000, CRC(5ba01949) SHA1(1598949ea18d07bbc78af0ddd279a687173c1229) ) ROM_LOAD( "u36-r0", 0x200000, 0x080000, CRC(800f5a1f) SHA1(4d3ee6fb896d6452aab1f279a3ee878284bd1acc) ) ROM_REGION( 0x100000, REGION_USER1, 0 ) // extra data / extra banks? ROM_LOAD( "u32-r0", 0x00000, 0x100000, CRC(f8f7f48e) SHA1(1bebe1f8898c60b795a0f794ca9b79e03d2744e4) ) ROM_REGION( 0x8000, REGION_USER2, 0 ) // DS1230 nv ram ROM_LOAD( "ds1230y.u31", 0x00000, 0x8000, CRC(51b6da5c) SHA1(1d53af89d7867bb48b9d46feff6fc3b7e8e80ac8) ) ROM_REGION( 0x1000, REGION_USER3, 0 ) // PALs ROM_LOAD( "sc3943.u20.bin", 0x000, 0x117, CRC(5a72fe78) SHA1(4b1a36904eb7048518507fe14bdade5c2589dbd7) ) ROM_LOAD( "sc3944-0a.bin", 0x000, 0x2dd, CRC(4cc46c5e) SHA1(0bab970df1539ce905f43603ad13171b05449a01) ) ROM_LOAD( "sc3980.bin", 0x000, 0x117, CRC(ee0cdab5) SHA1(216fef50a8a0f6a33b704d3501a4c5c3cbac2bad) ) ROM_LOAD( "sc39810a.bin", 0x000, 0x117, CRC(4fc750d0) SHA1(d09ff7a8c66aeb5c49e9fec84bd1521e3f5d8d0a) ) ROM_END /* Type 1 */ GAME( 1988, pitboss2, 0, meritm, meritm, 0, ROT0, "Merit", "Pitboss II", GAME_NO_SOUND|GAME_NOT_WORKING ) GAME( 198?, spitboss, 0, meritm, meritm, 0, ROT0, "Merit", "Super Pitboss", GAME_NO_SOUND|GAME_NOT_WORKING ) /* Type 2 */ GAME( 1994, pitbossm, 0, meritm, meritm, 0, ROT0, "Merit", "Pitboss Megastar", GAME_NO_SOUND|GAME_NOT_WORKING ) /* Type 3 */ GAME( 1995, megat3, 0, meritm, meritm, 0, ROT0, "Merit", "Megatouch 3", GAME_NO_SOUND|GAME_NOT_WORKING ) GAME( 1997, megat5, 0, meritm, meritm, 0, ROT0, "Merit", "Megatouch 5", GAME_NO_SOUND|GAME_NOT_WORKING ) GAME( 1998, megat6, 0, meritm, meritm, 0, ROT0, "Merit", "Megatouch 6", GAME_NO_SOUND|GAME_NOT_WORKING )