HP Forum Archive 21

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HP-41 questions Message #1 Posted by x34 on 28 Sept 2013, 2:15 p.m. In the programs http://www.hpmuseum.org/software/41/41roman.htm there are numerous instructions "DSE X", I am unable to enter it on my CX. Is "X" here a "synthetic" register, so may I replace it with any numeric one? Is it possible to enter function name into program from Catalogue directly? tia

Re: HP-41 questions Message #2 Posted by Jackie Woldering on 28 Sept 2013, 2:37 p.m., in response to message #1 by x34 Try the following 8 keystrokes: XEQ ALPHA D S E ALPHA . X

Re: HP-41 questions Message #3 Posted by Dieter on 28 Sept 2013, 3:08 p.m., in response to message #1 by x34 Quote: Is "X" here a "synthetic" register, so may I replace it with any numeric one? No. X, Y, Z and T (and also L = LastX, for that matter) simply are the usual stack registers. Yes, the '41 can also use the stack for commands like DSE, ISG, STO, RCL, X<>, VIEW and others. It is not limited to the regular numbered standard registers. If you use these commands, the stack registers can be addressed by pressing the decimal point [.] before X, Y, Z, T or L. At this point, the '41 shows a "ST" to indicate that you are about to use a STack register. [XEQ] [ALPHA] D S E [ALPHA] => DSE _ _ [.] => DSE ST _ X => DSE X ; as usual, the X is on the "6" key Quote: Is it possible to enter function name into program from Catalogue directly? No. At least not with a standard '41. Dieter

Re: HP-41 questions Message #4 Posted by Raymond Del Tondo on 28 Sept 2013, 3:31 p.m., in response to message #1 by x34 Quote: Is it possible to enter function name into program from Catalogue directly? Yes, it you have a W&W CCD module installed, or alternatively the CCD OS/X ROM block in an active page of a RAM box. HTH Ray

Re: HP-41 questions Message #5 Posted by x34 on 28 Sept 2013, 5:15 p.m., in response to message #4 by Raymond Del Tondo Thank you!

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