HP 15C conditional does not behave as expected

[Siegfried]

I think you got the loop label wrong which is .0 (corresponding to the GTO .0 at the end) which you have listed as

Code:

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May I ask what your result is on program termination? I get the 894.xxx but that's wrong as the comparison should result in a few more loops and end up around 994.

I get the same result on a real HP-15C and nonpareil-15c.

I also tried this on a HP-41CX and get the same behaviour.

I have added an R/S to check the stack before the conditional test and have verified X=894.5956 and Y=1. So when Testing X>Y? the result is TRUE and either calculator should continue on the line after the conditional test (that is the GTO .0 instruction) but it stops on the R/S one line further.

(05-07-2021 04:22 PM)Gene Wrote:  Works fine for me as you have written it out on a 15c emulator. Don't have the physical unit with me at the moment.

Key codes to check:

Code:

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