What does "E2" and "E3" stand for in a program listing?
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04-15-2015, 06:56 PM
(This post was last modified: 04-15-2015 06:57 PM by Dieter.)
Post: #5
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RE: What does "E2" and "E3" stand for in a program listing?
(04-15-2015 05:02 PM)4ster Wrote: I ran across a couple of instructions I don't understand in a program here: These are simply two shortcuts for 1 E2 and 1 E3, in other words 100 and 1000. Omitting the leading 1 saves one byte, but you cannot enter these lines directly: they are synthetic instructions. Simply enter 1 E2 or 100, resp. 1 E3 or 1000, and you're done. (04-15-2015 05:02 PM)4ster Wrote: Also, when using rwiker's web site http://rwiker.github.io/hp41barcode/# to generate bar code, is there a symbol to use for the "Append" function on the 41? I've been manually re-entering lines because the symbol for "Append" is not documented on the site. I'm afraid you will have to ask the author about this. Or you may analyze the underlying Javascript source. There is a Boolean variable "append" in the function match_alpha that will answer your question (it writes the append-byte 7Fh if text is appended), but I can't tell you exactly how it works. Dieter |
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