Checking how much memory I have on HP-41CV

[emefff]

Hello!

With all three modules plugged in, "XEQ ALPHA EMDIR ALPHA" should give the result "DIR EMPTY" and upon pressing another button will show the free registers "600".
Anything less probably points to a X-MEMORY module with bad contact or another problem. Every X-MEMORY will add 238 registers. The X-FUNCTION module will have 124 registers. EMDIR is a command located in the X-functions module, so it will not work without it. It would show "NONEXISTENT".

Hope that helps,

Mario.