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Memory Map

The following is a memory map that was generated based on the MAME source code (.180).  This information is only as accurate as the MAME driver is.  If you see any errors, please let me know what that error is.
 
The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.
Cactus (bootleg, 1992)
Memory Area:bjtwin_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x80000-0x800012Read PortIN0
0x80002-0x800032Read PortIN1
0x80008-0x800092Read PortDSW1
0x8000A-0x8000B2Read PortDSW2
0x80014-0x800152Writenmk_flipscreen_w
0x84000-0x840012Device Read/Write 8-bitoki1, okim6295_device, read, write, 0x00ff
0x84010-0x840112Device Read/Write 8-bitoki2, okim6295_device, read, write, 0x00ff
0x84020-0x8402F16Device Write 8-bitnmk112, nmk112_device, okibank_w, 0x00ff
0x88000-0x887FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0x94000-0x940012Writenmk_tilebank_w
0x94002-0x940032Write NOP(/* IRQ enable? */)
0x9C000-0x9CFFF4096Mirror, RAM Write, Shared0x1000, nmk_bgvideoram0_w, nmk_bgvideoram0
0xF0000-0xFFFFF65536RAM, Sharedmainram
 

ROM Map for this game

 
This is the ROM map for the game.  This should tell you what address the ROM is at, how big it is, what it's used for.   
Memory Area:bgtile
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576s-05.binCRC(fce962b9) (Fluke: 8E7C)
0x100000-0x1FFFFF1048576s-06.binCRC(16768fbc) (Fluke: C511)
Memory Area:fgtile
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536i03.binCRC(eb7bc99d),8x8 tiles (Fluke: 5553)
Memory Area:oki1
Address RangeLengthLabel/LocationDescription
0x40000-0x13FFFF1048576s-01.binCRC(288407af),all banked (Fluke: 3364)
Memory Area:oki2
Address RangeLengthLabel/LocationDescription
0x40000-0x13FFFF1048576s-02.binCRC(43e33a7e),all banked (Fluke: F9F3)
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