On 02-Feb-98, Olaf Seibert wrote: >sys4 >t b000 c000 4000 >s "b000 rom" 01 4000 5000 >repeat for higher addresses. >The f000-0000 part is tricky: you can't T f000 0000 4000 so use ffff >as an end address and copy the last byte "by hand" with the M and : >commands. I did something like this. The problem came when loading the file into the C64. I got a load error right at the end. Now I suppose this *could* be a flaky cassette recorder, but I doubt it. [Does it matter which PET cassette port I hook up the recorder to? I think I used the port on the right-hand side, not the rear.] Getting ROM part numbers should not be a problem; at least, I can note down all part numbers from the various chips and post a list. >> Related to this, I would like to obtain a copy of the data from the >> VisiCalc ROM; I have the original disk, but it requires that a ROM be >> installed to run. (I also need to get a PET disk drive...) >Hm, if you somehow can get me a copy of the disk, I probably can patch >it not to require the ROM. I know I used it in the dim past without a >ROM. I created a .d64 format image file and put it on my web space a while ago. See http://www.netcomuk.co.uk/~markk/index.html (and take the C64/PET archive link). -- Mark
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