SIZE instruction on HP41CX

[Geoff Quickfall]

It is part of the EXTENDED FUNCTIONS command set. So either it is a 41CX or a 41C and CV with an EXTENDED FUNCTIONS module. Let us know.

Executing a function not in the command set will result in NONEXISTENT unless the title is coopted for a user written routine or inserted module with an identical LABEL.

Therefore, as stated in the first post of this thread, a command of SIZE 5 followed by SIZE? will result in one of three displays:

1. 5. (Functioning EXTENDED FUNCTIONS ROM)
2. NONEXISTENT ( non functioning or missing EXTENDED FUNCTIONS ROM).
3. What ever the user/module routine labeled SIZE? performs. (a module or user program with a routine labelled SIZE?)
   

Confirm it is a 41CX or 41CV and 41C with an EXTENDED FUNCTIONS module. Test as follows:

ON+CLX. (Memory lost).
XEQ SIZE 5 (set memory allocation 5 registers).
XEQ SIZE? (should display 5).

If not, then a malfunction of a ROM whether internal or plug in is indicated.

Geoff