>>>>> "PD" == Professor Dredd <profdredd@yahoo.com> 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/
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