On Fri, 1 Dec 2000, John Phipps wrote:
> Ruud,
>
> Out of curiousity, do you know what the memory map is for the 6530 in the
> 4040 drive? I guess there's no difference between DOS 1 or DOS 2 devices (or
> is there?)
Here is the complete hardware map of the 4040. The software map is in "The
Complete Commodore Inner Space Antholohy", pages 5-53. This is long out of
print, but there is a reprint out there somewhere.
4040 Memory Map
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
-
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