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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.
Williams Multigame (hack (Clay Cowgill), 2001)
Memory Area:wmg_cpu1
Address RangeLengthFunctionDescription
0x0000-0x8FFF36864Read Bank, Write Only, Sharedbank1, , videoram
0x9000-0xBFFF12288RAM
0xC000-0xCFFF4096ROM Bankbank7
0xD0001Writewmg_d000_w
0xD000-0xFFFF12288ROM Bankbank5
Memory Area:wmg_cpu2
Address RangeLengthFunctionDescription
0x0000-0x007F128RAM(/* internal RAM */)
0x0080-0x00FF128RAM(/* MC6810 RAM */)
0x0400-0x04034Mirror, Device Read/Write0x8000, pia_2, pia6821_device, read, write
0xC000-0xC00F16Mirror, Write Only, Shared0x03f0, , paletteram
0xD000-0xEFFF8192RAM, Sharednvram
0xF000-0xFFFF4096ROM Bankbank6
 

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:maincpu
Address RangeLengthLabel/LocationDescription
0x20000-0x9FFFF524288wmg.cpuCRC(975516ec)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x01FF512decoder.4CRC(e6631c23) (Fluke: 5702)
0x0200-0x03FF512decoder.6CRC(83faf25e) (Fluke: B999)
Memory Area:soundcpu
Address RangeLengthLabel/LocationDescription
0x10000-0x17FFF32768wmg.sndCRC(1d08990e)
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