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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.
Mahjong Man Guan Da Heng (IGS, 1997)
Memory Area:mgdha_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x600000-0x603FFF16384RAM
0x876000-0x8760034Writemgdha_magic_w
0x876002-0x8760032Readmgdha_magic_r
0xA00000-0xA0FFFF65536Device Read/Write 8-bitigs017_igs031, igs017_igs031_device, read,write, 0x00ff
0xA10000-0xA100012Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff
 

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:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288ig2_8836.u14CRC(ac1f4da8)
Memory Area:sprites
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFFF4194304m1001.u4CRC(0cfb60d6)
0x0000-0x3FFFFF4194304m1001.u4CRC(0cfb60d6)
Memory Area:tilemaps
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072igs_512e.u6CRC(db50f8fc)
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