programming • Re: Function causing Beeb to crash

ProgTip: I managed to wrangle some code together to do left-shifts on pre-32bit BASIC:
((num%AND&3FFFFFFF)*2)OR(((num%AND&40000000)<>0)AND&80000000)

I thought I'd done a similar right shift, but can't find it. Let's think....
((num%AND&7FFFFFFF)DIV2)OR(&40000000 AND (num%<0))

Better put these on the wiki.

...and in typing them up to make into a library, I ended up optimising them and built the full set of 5 shift/rots.
mdfs.net/blib/Shift when I get around to uploading it.

(I''ve been isolating, and through the boredom have been going through loads of unsorted code snippets and tidying them up and documenting them.)

Statistics: Posted by jgharston — Tue Jan 16, 2024 12:28 am

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