HP-41C T register duplication disabling

[Dave Britten]

(02-21-2020 02:33 PM)Sylvain Cote Wrote:  

(02-21-2020 02:28 PM)Dave Britten Wrote:  Here's an interesting challenge - one I'm not sure I have a good solution for yet: what's the fewest number of steps needed to guarantee that the value in T is different from the value in Z, while preserving the contents of X, Y, Z, and L?

STO T // copy X in T and satisfy your request.

Not if X=Z, though. Then you still have T=Z.