HP-15C instruction list and count
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03-30-2023, 02:55 AM
Post: #1
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HP-15C instruction list and count
In order to implement dmh's request that I add HP-15C instruction decode to my Voyager-LCD program (discussed in a separate thread), I needed a list of valid HP-15C instructions with their hexadecimal codes. Since a lot of them are very regular, it makes sense to have a program with a simple table generate the full list. I've written that, based on the instruction decoding that I did in 1982, and Allyn F. Tennant's "Synthetic Methods on the HP-15C, published in PPC Journal V10N1.
A file with the output of my program is attached. It's in Unicode with Linux/Unix line endings (line feed only), so old versions of Microsoft Notepad probably won't display it well, but newer Notepad on Windows 10 and 11 will, or Notepad++. I haven't spent much time checking it. The program reports that there are 240 one-byte instructions and 460 two-byte instructions, for a total of 700. Has anyone else enumerated them? |
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Messages In This Thread |
HP-15C instruction list and count - brouhaha - 03-30-2023 02:55 AM
RE: HP-15C instruction list and count - Valentin Albillo - 03-30-2023, 04:10 AM
RE: HP-15C instruction list and count - brouhaha - 03-30-2023, 08:29 AM
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