>>>>> "PD" == Professor Dredd <firstname.lastname@example.org> writes: PD> Although I have not read it completely, this book of mine is PD> called "M6800 Microcomputer System Design Data". I contains PD> datasheets and technical breakdowns of (AFAIK) the entire 68xx PD> series. Just looking at the instructionset, the similarities and PD> differences (to 6502) are remarkable. Yes, and by no means accidental :) The 6500 started out as a pin com- patible 6800 replacement. The 6500 sold for a fraction of the price of the 6800, so naturally Motorola wasn't too happy about the situation. They sued, and after the settlement MOS changed the pinout, fixed a couple of bugs, and released the 6502. -- ___ . . . . . + . . o _|___|_ + . + . + . Per Olofsson, arkadspelare o-o . . . o + MagerValp@cling.gu.se - + + . http://www.cling.gu.se/~cl3polof/ Message was sent through the cbm-hackers mailing list
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