Is there any way to erase program steps in HP-12C to free memory besides CLEAR PRGM?
Could not find info in the manual.
HP-12C erase program steps
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02-11-2011, 01:20 AM
Is there any way to erase program steps in HP-12C to free memory besides CLEAR PRGM? Could not find info in the manual.
02-11-2011, 01:34 AM
No. You overwrite program steps when editing programs on the 12C. If you're looking to free up only some memory that was used in a program so that you can have more cash flow registers, you're out of luck. You have to erase all program steps.
02-11-2011, 08:08 AM
It's a pity. Katie, do you know simple way to read HP-12C flags programmatically (i mean BEGIN/END and DAY format).
02-11-2011, 09:18 AM
Wow. That's a major deficiency in this calc's programming capabilities. I've never given it any thought, since I've never programmed my HP-12C. I simply assumed it worked the same as my HP-15C, which I programmed a lot, but now I can see the difference, since the HP-12C lacks the back arrow (<--) keys that the HP-15C uses to delete displayed entries. It also means that if you make a mistake when keying in an entry, you cannot backspace over the incorrect digit to correct it, and must clear the entire entry and enter the entire line again.
02-11-2011, 10:17 AM
Quote:
Michael, it s much worse. You can't clear entry. Only overwrite it.
02-11-2011, 11:32 AM
The 20s and 21s have insert/delete editing I think. I've concluded that the reason why the 12C (10C, 25, 38e/c, others?) don't have insert/delete editing is becasue there are no labels. You can branch to any program line number. To make for a easy to use programming environment insert/delete would have to re-assign all the goto/gosub targets each time you deleted or inserted a step. This would likely create an unacceptable delay on the original 12C (and the others) and it also would require the programmer to keep looking around for the new target location if it were needed for further entries/edits.
-Katie
02-11-2011, 11:49 AM
Quote:
May be. I do not have it at hand. So, i'm wrong. Edited: 11 Feb 2011, 12:03 p.m.
02-13-2011, 03:52 PM
For interest: |
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