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HP-25/SR-56 Identical Conditionals
10-14-2021, 11:38 AM
Post: #10
RE: HP-25/SR-56 Identical Conditionals.
(10-14-2021 01:16 AM)Valentin Albillo Wrote:  
(10-12-2021 06:20 PM)Matt Agajanian Wrote:  Yes, both the SR-56 and 52 had two looping constructs: 2nd DSZ (decrement and skip on zero) and INV 2nd DSZ (decrement and skip on non-zero).

The latter seems pretty dumb to me.

V.

I've had the occasional situation on an HP where it would be nice to decrement a counter and execute the next instruction only if the counter is now zero, but it's not super common. You can usually get around it with a GTO or some test that will always be false, but it's not quite as clean.
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RE: HP-25/SR-56 Identical Conditionals. - Dave Britten - 10-14-2021 11:38 AM



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