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HP41 and MCODE XKD instructions in program mode
07-26-2016, 08:26 AM (This post was last modified: 07-26-2016 08:33 AM by Ángel Martin.)
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RE: HP41 and MCODE XKD instructions in program mode
(07-26-2016 03:49 AM)hth Wrote:  ......
Has this feature ever been used by some MCODE instruction?

Yes, I've seen that in a couple of functions from the NFCROM and others, where the documentation states its immediate execution character. But I didn't expect this not to be the case in RUN mode, which to me defeats the purpose of the setting.

Is that tested checking F13 only or both F13 and F4?

Edited: I just tried with functions SST^ and BST^ from the TOOLBOX module.

If you execute them in PROGRAM MODE (but non in a running program) they are executed non-stop, i.e. no return to the OS upon completion.

What I'm not sure is whether this is due to the dual NOP at the beginning, or due to the final call to [DFRST8]...
probably both?

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RE: HP41 and MCODE XKD instructions in program mode - Ángel Martin - 07-26-2016 08:26 AM



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