"Standard" module "number" programs

Programs for HP-41

"Standard" module "number" programs

Postby Jordan Orlando » Mon Apr 26, 2021 10:10 pm

The "Standard" module catalog begins with "CLSTK" and then the numerals "1" through "9" and then "0."

Calling these functions with "XEQ" (and a combination of "ALPHA" and "SHIFT" to type the numerals) produces a horizontally-scrolling display I don't understand, with a fixed-point number (meaning, with a four-digit mantissa) followed by two additional numbers prefaced by "Z:" and "T:"

The only manual for the "Standard" module is HP's "Standard Applications" booklet — which lists the individual programs so they can be manually entered (meaning, it's redundant to the module but doesn't explicitly refer to the module) — and I can't find the numbered programs in there.

Can anyone explain this? Thanks in advance for anyone's time and attention.

Jordan

ADDENDUM: It appears that these "programs" list the stack — like the "STACK" program does. (Of course I should have recognized the stack register names: X, Y, Z and T.) It's possible that all 10 digits simply skip to the next item in the catalog, which is "STACK." It could be an idiosyncrasy of the catalog.
Jordan Orlando
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Re: "Standard" module "number" programs

Postby rprosperi » Tue Apr 27, 2021 2:29 am

The book for the the 41's "Standard Applications" came in the box with 41C machines, to illustrate some sample programs. Years later, HP decided to sell a module which contains these same programs, and since the original manual existed, they did not go back and re-write it to describe the module, etc. (perhaps they did actually, but I never looked for a newer version).

"CLSTK", "1", "2", "3", etc. are part of the RPN Primer program on pages 8-13 in the manual. These are utility routines used in the RPN Primer, not stand-alone programs, but they appear in CAT-2 since they are global alpha labels (meaning they can be called by [XEQ] "1", etc.).

You can see these routines clearly in the listing on pp. 12-13.
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Re: "Standard" module "number" programs

Postby Jordan Orlando » Tue Apr 27, 2021 2:36 am

rprosperi wrote:The book for the the 41's "Standard Applications" came in the box with 41C machines, to illustrate some sample programs. Years later, HP decided to sell a module which contains these same programs, and since the original manual existed, they did not go back and re-write it to describe the module, etc. (perhaps they did actually, but I never looked for a newer version).

"CLSTK", "1", "2", "3", etc. are part of the RPN Primer program on pages 8-13 in the manual. These are utility routines used in the RPN Primer, not stand-alone programs, but they appear in CAT-2 since they are global alpha labels (meaning they can be called by [XEQ] "1", etc.).

You can see these routines clearly in the listing on pp. 12-13.


Thank you! That makes perfect sense...and yes, I can see the listings exactly where you said they were.

Another mystery solved thanks to this terrific community!
Jordan Orlando
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Posts: 28
Joined: Sun Apr 04, 2021 11:16 am


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