> 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. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckai...@floodgap.com -- Knowledge puffs up, but love builds up. -- 1 Corinthians 8:1 ---------------