Search

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.
Shougi (Alpha Denshi Co. (Tehkan license), 1982)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x43FF1024RAM(/* 2114 x 2 (0x400 x 4bit each) */)
0x4800-0x480F16Writecontrol_w
0x48001Read PortDSW
0x0001Coin 1Active High
0x0008OffActive High
0x0000OnActive High
0x00001 MinuteActive High
0x00202 MinutesActive High
0x00023 MinutesActive High
0x00224 MinutesActive High
0x00105 MinutesActive High
0x003010 MinutesActive High
0x001220 MinutesActive High
0x003230 MinutesActive High
0x0004UnknownActive High
0x0004OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x50001Read PortP1
0x0001Start 2Active High
0x0002Start 1Active High
0x0004Button 2Active High
0x0008Button 1Active High
0x0010Joystick LeftActive High
0x0020Joystick RightActive High
0x0040Joystick DownActive High
0x0080Joystick UpActive High
0x58001Read Port, Device WriteP2, watchdog, watchdog_timer_device, reset_w (/* game won't boot if watchdog doesn't work */)
0x0001UnknownActive High
0x0002UnknownActive High
0x0004Button 2Active High
0x0008Button 1Active High
0x0010Joystick LeftActive High
0x0020Joystick RightActive High
0x0040Joystick DownActive High
0x0080Joystick UpActive High
0x60001Device Writeaysnd, ay8910_device, address_w
0x68001Device Writeaysnd, ay8910_device, data_w
0x7000-0x73FF1024Device Read/Writealpha_8201, alpha_8201_device, ext_ram_r, ext_ram_w
0x7800-0x7BFF1024RAM, Sharedsharedram (/* 2114 x 2 (0x400 x 4bit each) */)
0x8000-0xFFFF32768RAM, Sharedvideoram (/* 4116 x 16 (32K) */)
Memory Area:readport_sub
Address RangeLengthFunctionDescription
0x00001Readsemaphore_r
Memory Area:sub_map
Address RangeLengthFunctionDescription
0x0000-0x5FFF24576ROM
0x6000-0x63FF1024RAM, Sharedsharedram (/* 2114 x 2 (0x400 x 4bit each) */)
 

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:alpha_8201:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192alpha-8201_44801a75_2f25.binCRC(b77931ac) (Fluke: 3908)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF40961.3aCRC(b601303f) (Fluke: 4B97)
0x1000-0x1FFF40963.3cCRC(2b8c7314) (Fluke: 1592)
0x2000-0x2FFF40962.3bCRC(09cb831f) (Fluke: 1B71)
0x3000-0x3FFF40964.3dCRC(ad1a642a) (Fluke: 6EE7)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F32pr.2lCRC(cd3559ff) (Fluke: 5C6D)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF40965.3eCRC(ff1f07d0) (Fluke: 7E0A)
0x1000-0x1FFF40968.3jCRC(6230c4c1) (Fluke: 4FE0)
0x2000-0x2FFF40966.3fCRC(d5a91b16) (Fluke: A59B)
0x3000-0x3FFF40969.3kCRC(dbbfa66e) (Fluke: 5180)
0x4000-0x4FFF40967.3hCRC(7ea8ec4a) (Fluke: 7ADB)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3