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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.
Tap a Tune (Moloney Manufacturing Inc. / Creative Electronics and Software, 1994)
Memory Area:maincpu_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM, Write NOP
0xE000-0xFFFF8192RAM, Sharednvram
Memory Area:video_map
Address RangeLengthFunctionDescription
0x0000-0x2FFFFF3145728ROM
0x300000-0x31FFFF131072RAM, Sharedvideoram
0x320000-0x33FFFF131072RAM
0x400000-0x4000034Read/Writeread_from_z80, write_to_z80
0x400010-0x4000112Read/Write NOP(// Watchdog?)
0x600000-0x6000056Writepalette_w
0x800000-0x8000012Device Write 8-bitcrtc, mc6845_device, address_w, 0xff00
0x800002-0x8000032Device Read/Write 8-bitcrtc, mc6845_device, register_r, register_w, 0xff00
 

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:bsmt
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072arom1.u16CRC(e51696bc)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536rom.u8CRC(f5c571d7)
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