HP 41CX/Swiss Micros DM41X and XROM

[Eddie W. Shore]

To make sure that I am understanding correctly: is XROM a place holder, which allows programs to be transferred to calculators which do or do not have the Math ROM?

For example: to calculate tanh(x+1):

01 LBL^SAMPLE
02 1
03 +
04 XROM 1,35
05 END

I am to assume that a program like this would only work with calculators containing the Math ROM.