HP35S – A quick and easy way to manage indirect registers.

04062021, 06:46 AM
(This post was last modified: 04062021 06:50 AM by Roberto Volpi.)
Post: #1




HP35S – A quick and easy way to manage indirect registers.
As many of you already know, the HP35S has 801 indirect registers accessible through registers I and J. They are a huge quantity but accessing them may be little cumbersome.
I have elaborated the following short programs in order to make a better use of them. They may be of course used as subroutines in larger programs.  Store a x value in the n register: LBL S STO J X<>Y STO (J) X<>Y RTN Input the x value in the stack y and the n register in the stack x. After execution, stacks x and y remain unchainged.  Recall the x value of a n register LBL R STO J RCL (J) RTN Input the n register, and after execution the n register appears in the stack y, and the x value in the stack x. 

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