Emulator or calculator to write programs ?

[enricor]

I purchased my HP Prime a few weeks ago and I love it. I did not have so much pleasure at writing small programs since the 1980's, when I used a Sharp Pocket Computer (a PC-1211).

My question to more experienced users is : what do you use to write programs : the emuiator, or the calculator, or an external text editor ? For now I am using the calculator itself but I have the feeling I may be making my life more difficult than it needs to be.

Best regards

Enrico