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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.
Altair (Cidelsa, 1981)
Memory Area:altair_io_map
Address RangeLengthFunctionDescription
0x00011Device Read, Device Writeic23, cdp1852_device, read, ic26, cdp1852_device, write
0x0001UnknownActive Low
0x0002Start 1Active Low
0x0004Start 2Active Low
0x0008Joystick RightActive Low
0x0010Joystick LeftActive Low
0x0020Button 1Active Low
0x0040UnusedActive Low
0x0080SpecialActive High
0x00021Device Readic24, cdp1852_device, read
0x0000Very ConservActive High
0x0001ConservActive High
0x0002LiberalActive High
0x0003Very LiberalActive High
0x000c5000Active High
0x00087000Active High
0x000410000Active High
0x000014000Active High
0x00301Active High
0x00202Active High
0x00103Active High
0x00004Active High
0x00c0Slot A: 1 Slot B: 2Active High
0x0080Slot A: 1.5 Slot B: 3Active High
0x0040Slot A: 2 Slot B: 4Active High
0x0000Slot A: 2.5 Slot B: 5Active High
0x0003-0x00075Writecdp1869_w
0x00041Device Readic25, cdp1852_device, read
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Button 2Active Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
Memory Area:altair_map
Address RangeLengthFunctionDescription
0x0000-0x2FFF12288ROM
0x3000-0x30FF256RAM, Sharednvram
0xF400-0xF7FF1024DeviceCDP1869_TAG, cdp1869_device, char_map
0xF800-0xFFFF2048DeviceCDP1869_TAG, cdp1869_device, page_map
 

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:CDP1802_TAG
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048alt a 1.ic7CRC(37c26c4e) (Fluke: 5E95)
0x0800-0x0FFF2048alt b 1.ic8CRC(76b814a4) (Fluke: 7C55)
0x1000-0x17FF2048alt c 1.ic9CRC(2569ce44) (Fluke: 5F78)
0x1800-0x1FFF2048alt d 1.ic10CRC(a25e6d11) (Fluke: FCE3)
0x2000-0x27FF2048alt e 1.ic11CRC(e497f23b) (Fluke: 1D4E)
0x2800-0x2FFF2048alt f 1.ic12CRC(a06dd905) (Fluke: 8373)
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