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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.
T.T Mahjong (Taito, 1981)
Memory Area:cpu1_io_map
Address RangeLengthFunctionDescription
0x00001Mirror, Device Write0x00ff, ay8910, ay8910_device, data_w
0x01001Mirror, Device Write0x00ff, ay8910, ay8910_device, address_w
Memory Area:route16_cpu1_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x43FF1024RAM Write, Sharedroute16_sharedram_w, sharedram
0x48001Read Port, WriteDSW, out0_w
0x000000Active High
0x000101Active High
0x000000Active High
0x000202Active High
0x000000Active High
0x000404Active High
0x000000Active High
0x000808Active High
0x000000Active High
0x001010Active High
0x000000Active High
0x002020Active High
0x000000Active High
0x004040Active High
0x000000Active High
0x008080Active High
0x50001Read Port, WriteP1, out1_w
0x58001Read PortP2
0x8000-0xBFFF16384RAM, Sharedvideoram1
Memory Area:route16_cpu2_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x4000-0x43FF1024RAM Write, Sharedroute16_sharedram_w, sharedram
0x8000-0xBFFF16384RAM, Sharedvideoram2
Memory Area:ttmahjng_cpu1_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x43FF1024RAM, Sharedsharedram
0x48001Read Port, WriteDSW, out0_w
0x000000Active High
0x000101Active High
0x000000Active High
0x000202Active High
0x000000Active High
0x000404Active High
0x000000Active High
0x000808Active High
0x000000Active High
0x001010Active High
0x000000Active High
0x002020Active High
0x000000Active High
0x004040Active High
0x000000Active High
0x008080Active High
0x50001Read Port, WriteIN0, out1_w
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080Coin 1Active Low
0x58001Read/Writettmahjng_input_port_matrix_r, ttmahjng_input_port_matrix_w
0x68001Device Writeay8910, ay8910_device, data_w
0x69001Device Writeay8910, ay8910_device, address_w
0x8000-0xBFFF16384RAM, Sharedvideoram1
 

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:cpu1
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096ju04CRC(fe7c693a) (Fluke: CC6C)
0x1000-0x1FFF4096ju05CRC(985723d3) (Fluke: 56BD)
0x2000-0x2FFF4096ju06CRC(2cd69bc8) (Fluke: D771)
0x3000-0x3FFF4096ju07CRC(30e8ec63) (Fluke: E9B7)
Memory Area:cpu2
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ju01CRC(0f05ca3c) (Fluke: 29C7)
0x0800-0x0FFF2048ju02CRC(c1ffeceb) (Fluke: 0313)
0x1000-0x17FF2048ju08CRC(2dcc76b5) (Fluke: 41C5)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256ju03CRC(27d47624) (Fluke: 1F7C)
0x0100-0x01FF256ju09CRC(27d47624) (Fluke: 1F7C)
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