4040 Memory Map
composed by William Levak

            6502                               6504
                                                                                
0000-007F  6532 #1 RAM            6530 RAM            0000-003F
0080-00FF  6532 #2 RAM
0100-01FF  6532 RAM shadows
0200-001F  6532 #1 I/O            6522                0040-004F
0220-027F  6532 #1 I/O shadows    6522 shadows        0050-007F
0280-029F  6532 #2 I/O            6530 I/O            0080-008F
02A0-02FF  6532 #2 I/O shadows    6530 I/O shadows    0090-00BF
0300-03FF  6532 I/O shadows       6522 shodows        00C0-00FF
0400-0FFF  6532 shadows           shadows(0000-00FF)  0100-03FF
1000-13FF  -------------- common RAM 1 -------------  0400-07FF
1400-1FFF  RAM 1 shadows
2000-23FF  -------------- common RAM 2 -------------  0800-0BFF
2400-2FFF  RAM 2 shadows
3000-33FF  -------------- common RAM 3 -------------  0C00-0FFF
3400-3FFF  RAM 3 shadows
4000-43FF  -------------- common RAM 4 -------------  1000-13FF
4400-4FFF  RAM 4 shadows
5000-7FFF  ROM shadows            unconnected         1400-1BFF
8000-8FFF  6532 shadows
9000-CFFF  RAM shadows
D000-FFFF  ROM                    6530 ROM            1C00-1FFF