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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.
Yosaku To Donbei (Wing, 1979)
Memory Area:yosakdon_io_map
Address RangeLengthFunctionDescription
0x00011Read PortIN0
0x0001Coin 1Active High
0x0002Start 2Active High
0x0004Start 1Active High
0x0008UnknownActive High
0x0070SpecialActive High
0x0080UnusedActive High
0x00021Read PortIN1
0x00003Active High
0x00014Active High
0x00025Active High
0x00036Active High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0070SpecialActive High
0x0080UnusedActive High
0x00031Writeyosakdon_sh_port_1_w
0x00051Writeyosakdon_sh_port_2_w
0x00061Write NOP(/* character numbers */)
Memory Area:yosakdon_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x3FFF8192RAM, Sharedmain_ram
0x4000-0x43FF1024Write Only(/* what's this? */)
 

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
0x0000-0x03FF1024yd1.binCRC(607899c9) (Fluke: 429C)
0x0400-0x07FF1024yd2.binCRC(78336df4) (Fluke: 12F3)
0x0400-0x07FF1024yd2.binCRC(78336df4) (Fluke: 12F3)
0x0800-0x0BFF1024yd3.binCRC(c5af6d52) (Fluke: 12F2)
0x0C00-0x0FFF1024yd4.binCRC(dca8064f) (Fluke: BBCE)
0x1400-0x17FF1024yd5.binCRC(38804ff1) (Fluke: 3ECE)
0x1800-0x1BFF1024yd6.binCRC(988d2362) (Fluke: 2160)
0x1C00-0x1FFF1024yd7.binCRC(2744e68b) (Fluke: 0D48)
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