Re:Sectorforth: A 16-bit x86 Forth that fits in a boot sector
by cblum on Sunday September 27, 2020 @10:46PM
(#24612472)
Oh, interesting. I feel like I've gotten used to reasoning with rot and -rot. Didn't know there was advice out there not to use it.
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Re:Sectorforth: A 16-bit x86 Forth that fits in a boot sector
by loa_in_ on Sunday September 27, 2020 @11:15PM
(#24612624)
It's not any more or less intuitive to me than nip and over.
Where there's three or more items to be manipulated there's always at least ambiguity which way rot is supposed to rotate according to codebase author. With more than three items it's easy to see what can be done but no unambiguous and meaningful names. The only consistent stack word names that work 4 items deep are 2dup and 2drop.