I am trying to re-create and alter an old HP41CX set of programs. I have a HP41CX in which I have installed X functions, 2/X memories.
I wish to alter a program which, after certain selections have been made, will read in another programm from a cassette. However, I cannot seem to enter manually the line "READP" instruction; in comes out with inverted commas around the instruction READP.
I have searched my manuals etc for comments on this, but to my sorrow nothing seems to solve this.
Another point - when the original program is called into the HP41CX from the cassette tape, the calculator beeps, but there is no beep written into the program. Can anyone explain this.
Thanks in advance