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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.
Gunpey (Banpresto, 2000)
Memory Area:io_map
Address RangeLengthFunctionDescription
0x7F40-0x7F456Read 8-bitgunpey_inputs_r,0xffff
0x7F48-0x7F492Write 8-bitgunpey_output_w,0x00ff
0x7F80-0x7F812Device Read/Write 8-bitymz, ymz280b_device, read, write, 0xffff
0x7F88-0x7F892Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff
0x7FC8-0x7FC92Read/Write 8-bitgunpey_status_r, gunpey_status_w, 0xffff
0x7FD0-0x7FDF16Write 8-bitgunpey_blitter_w, 0xffff
0x7FE0-0x7FE56Write 8-bitgunpey_blitter_upper_w, 0xffff
0x7FEC-0x7FED2Writegunpey_vregs_addr_w
0x7FEE-0x7FEF2Writegunpey_vram_bank_w
0x7FF0-0x7FF56Write 8-bitgunpey_blitter_upper2_w, 0xffff
Memory Area:mem_map
Address RangeLengthFunctionDescription
0x0000-0xFFFF65536RAM, Sharedwram
0x80000-0xFFFFF524288ROM
 

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:blit_data
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFFF4194304gp_rom3.025CRC(f2d1f9f0) (Fluke: 3605)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFFF4194304gp_rom5.622CRC(f79903e0) (Fluke: C7BF)
Memory Area:ymz
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFFF4194304gp_rom4.525CRC(78dd1521) (Fluke: FDB5)
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