Where is NOP on the HP-67 ?

[[kby]]

(01-07-2021 11:20 PM)Dave Britten Wrote:  The 65 is a rather odd beast in quite a few ways. For additional fun, take a look at the HP 65 hyperbolic functions program in 65 Notes/PPC Journal (don't have the issue number in front of me - I'll dig it up if nobody else finds it). See if you can figure out how the calls to LBL C work, and why the program contains these three steps which DON'T result in an infinite loop/stack overflow:

This is what makes us -65 aficionados not as interested in then-67/97. The -65 is so interesting. Now add that second top-of-memory marker to your program…and the pseudo-merge capabilities…and…-kby