ARCADE ROMS

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Below is a table representhing the roms for Halley's Comet (US) and its clones (if any). Red roms are similar between all versions but green roms differ, which means that if you wish to change the game's region or language, it may be possible make the change simply by reprogramming fresh roms with other version's contents.

Note that the rom information displayed here is automatically parsed from Multiple Arcade Machine Emulator (www.mame.net) C source code, so some of it can be incorrect. However, if you notice that some parts of the data are constantly incorrectly displayed in more than one game, please contact me so that I can fix the problem.

You might also be interested in this game's dip switches.

halleys Halley's Comet (US)   CPU1 chips: a62_01.30 8x16kbits 0x0000 -> a62_02.31 8x16kbits 0x4000 -> a62-15.52 8x16kbits 0x8000 -> a62_04.50 8x16kbits 0xc000 ->   CPU2 chips: a62_13.5 8x8kbits 0x0000 -> a62_14.4 8x8kbits 0x2000 ->   GFX1 chips: a62_12.78 8x16kbits 0x00000 -> a62_10.77 8x16kbits 0x04000 -> a62_08.80 8x16kbits 0x08000 -> a62-16.79 8x16kbits 0x0c000 -> a62_11.89 8x16kbits 0x10000 -> a62_09.88 8x16kbits 0x14000 -> a62_07.91 8x16kbits 0x18000 -> a62_05.90 8x16kbits 0x1c000 ->   PROMS chips: a26-13.109 8x32bits 0x0000 -> a26-13.110 8x32bits 0x0020 -> a26-13.111 8x32bits 0x0040 ->

halleysc Halley's Comet (Japan set 1)   CPU1 chips: a62_01.30 8x16kbits 0x0000 -> a62_02.31 8x16kbits 0x4000 -> a62_03.52 8x16kbits 0x8000 -> a62_04.50 8x16kbits 0xc000 ->   CPU2 chips: a62_13.5 8x8kbits 0x0000 -> a62_14.4 8x8kbits 0x2000 ->   GFX1 chips: a62_12.78 8x16kbits 0x00000 -> a62_10.77 8x16kbits 0x04000 -> a62_08.80 8x16kbits 0x08000 -> a62_06.79 8x16kbits 0x0c000 -> a62_11.89 8x16kbits 0x10000 -> a62_09.88 8x16kbits 0x14000 -> a62_07.91 8x16kbits 0x18000 -> a62_05.90 8x16kbits 0x1c000 ->   PROMS chips: a26-13.109 8x32bits 0x0000 -> a26-13.110 8x32bits 0x0020 -> a26-13.111 8x32bits 0x0040 ->

halleycj Halley's Comet (Japan set 2)   CPU1 chips: a62_01.30 8x16kbits 0x0000 -> a62_02.31 8x16kbits 0x4000 -> a62_03-1.52 8x16kbits 0x8000 -> a62_04.50 8x16kbits 0xc000 ->   CPU2 chips: a62_13.5 8x8kbits 0x0000 -> a62_14.4 8x8kbits 0x2000 ->   GFX1 chips: a62_12.78 8x16kbits 0x00000 -> a62_10.77 8x16kbits 0x04000 -> a62_08.80 8x16kbits 0x08000 -> a62_06.79 8x16kbits 0x0c000 -> a62_11.89 8x16kbits 0x10000 -> a62_09.88 8x16kbits 0x14000 -> a62_07.91 8x16kbits 0x18000 -> a62_05.90 8x16kbits 0x1c000 ->   PROMS chips: a26-13.109 8x32bits 0x0000 -> a26-13.110 8x32bits 0x0020 -> a26-13.111 8x32bits 0x0040 ->