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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.
Meijinsen (SNK, 1986)
Memory Area:meijinsn_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0x80E00-0x80FFF512Read, Write NOPalpha_mcu_r,
0x100000-0x107FFF32768RAM, Sharedvideoram
0x180000-0x180DFF3584RAM
0x180E00-0x180FFF512RAM, Sharedshared_ram
0x181000-0x181FFF4096RAM
0x1A0000-0x1A00012Read Port, WriteP1, sound_w
0x0001Joystick UpActive High
0x0002Joystick DownActive High
0x0004Joystick RightActive High
0x0008Joystick LeftActive High
0x0010Button 1Active High
0x0020Button 2Active High
0x7cc0UnknownActive High
0x0100Start 1Active High
0x0200Start 2Active High
0x8000ServiceActive High
0x1C0000-0x1C00012Read PortP2
0x0100Joystick UpActive High
0x0200Joystick DownActive High
0x0400Joystick RightActive High
0x0800Joystick LeftActive High
0x1000Button 1Active High
0x2000Button 2Active High
0xc0ffUnknownActive High
Memory Area:meijinsn_sound_io_map
Address RangeLengthFunctionDescription
0x0000-0x00012Device Writeaysnd, ay8910_device, address_data_w
0x00011Device Readaysnd, ay8910_device, data_r
0x00021Device Writesoundlatch, generic_latch_8_device, clear_w
0x00061Write NOP
Memory Area:meijinsn_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x87FF2048RAM
 

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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384p9CRC(aedfefdf) (Fluke: 2F1B)
0x4000-0x7FFF16384p10CRC(93b4d764) (Fluke: 17D8)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F32clrCRC(7b95b5a7) (Fluke: 3FE2)
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