2 Jun
2017
2 Jun
'17
9:37 a.m.
I sold a bare CP1600 chip about a year ago to a
collector. "Odd" is an
understatement. A 10-bit wide instruction word, with the upper 6 bits of
the opcode unused. Loading a 16-bit address took three words.
Also, slow, very slow, with no I/O instructions.
But that was because it has memory-mapped I/O, no? On the other hand the
decles were weird and it has a lot of instructions that were removed.
Retrospectively a 6502 or a Z80 would have looked like a better choice in
this application, even considering this was supposed to be a higher-end
console.
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Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
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