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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.
Space Stranger (Yachiyo Electronics, Ltd., 1978)
Memory Area:sstrangr_io_map
Address RangeLengthFunctionDescription
0x00411Read PortDSW
0x0000NeverActive High
0x00013000Active High
0x00024000Active High
0x00035000Active High
0x00003Active High
0x00044Active High
0x00081000Active High
0x00002000Active High
0x0010UnknownActive Low
0x0020Button 1Active High
0x0040Joystick LeftActive High
0x0080Joystick RightActive High
0x00421Read PortINPUTS
0x0001Coin 1Active Low
0x0002Start 2Active High
0x0004Start 1Active High
0x0010UprightActive High
0x0000CocktailActive High
0x0020Button 1Active High
0x0040Joystick LeftActive High
0x0080Joystick RightActive High
0x00441Read Port, WriteEXT, port_w
0x0001CustomActive High
0x00feUnknownActive High
Memory Area:sstrangr_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x3FFF8192RAM, Sharedram
0x6000-0x63FF1024ROM
 

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
0x0000-0x03FF1024hss-01.58CRC(feec7600) (Fluke: A9D8)
0x0400-0x07FF1024hss-02.59CRC(7281ff0b) (Fluke: B2AC)
0x0800-0x0BFF1024hss-03.60CRC(a09ec572) (Fluke: 15CA)
0x0C00-0x0FFF1024hss-04.61CRC(ec411aca) (Fluke: 6225)
0x1000-0x13FF1024hss-05.62CRC(7b1b81dd) (Fluke: 5FEF)
0x1400-0x17FF1024hss-06.63CRC(de383625) (Fluke: 1302)
0x1800-0x1BFF1024hss-07.64CRC(2e41d0f0) (Fluke: 5CCE)
0x1C00-0x1FFF1024hss-08.65CRC(bd14d0b0) (Fluke: 80A0)
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