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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.
Twins (Electronic Devices, 1994)
Memory Area:twins_io
Address RangeLengthFunctionDescription
0x0000-0x00034Device Write 8-bitaysnd, ay8910_device, address_data_w, 0x00ff
0x0002-0x00032Device Read 8-bitaysnd, ay8910_device, data_r, 0x00ff
0x0004-0x00052Read/Writetwins_port4_r, twins_port4_w
0x0006-0x00072Write, Sharedtwins_pal_w, paletteram
0x000E-0x000F2Writeporte_paloff0_w
Memory Area:twins_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576Read/Writespider_blitter_r, spider_blitter_w
 

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.   
Sorry, We do not have ROM Memory Map information for this game.
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