Hello all! Now I have three different copies of the PET screen editor ROM for 80 column machines, business keyboard and 50Hz screen, part number 901474-04, and I don't remember where I got the first two copies. The newest copy, http://www.funet.fi/pub/cbm/firmware/computers/pet/edit-4-80-b-50Hz.901474-04-3681.bin, is from Mark Knibbs, but he said that he got a ?LOAD ERROR when reading the ROM dump tape to a C64, so the data might be incorrect. (All other data from that $a000-$ffff dump was OK.) The differences seem to be in the CRTC initialization tables. In order to clear this mess with the screen editor ROMs up, I'd like to get $e000-$e7ff dumps from all 80 column 50 Hz PETs, plus part numbers of all ROMs on the motherboard (or at least the number of the editor ROM). Also the manufacture code of the editor ROM is important, in case the ROM contents was changed without changing the part number. Also, if the chip is actually an EPROM, I'd like to know that. Marko This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
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