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HP Forum Archive 10

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16C 68 bit index reg: what for?
Message #1 Posted by Alexander Supalov on 15 Jan 2003, 9:23 a.m.


I've got a pretty esoteric question: why does HP-16C index register have 68 bits when all normal registers can be at most 64 bit long? What those 4 extra bits could be used for, bar writing (nearly) endless ISZ loops, I mean.

Best regards.


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