Transferring programs to and from an HP41CL

[mfleming]

(11-23-2017 11:57 PM)rprosperi Wrote:  Short recommendation: Get a PIL-Box. It's a decision you will never regret.

Small detail left out of the PILBox discussion (I have one and can attest to its great value). Without an HP-IL interface for the 41 and at least one HP-IL cable, the PILBox is little more than a paperweight you get to assemble yourself. Unless you already have those accessories, count on spending at least as much for them as for the PILBox. Not to discourage getting one, just pointing out the prerequisites. As Bob says, once acquired, you won't regret having one.

I have also gone through the "37-step process" to transfer a HEPAX image, disassemble it, assemble other code and merge, then package with MLDL2K into a ROM image that can be transferred back. Quite a pain, yes, but instructive. And free.

Another possibility might be to use go41cx or go41cxt to create the HEPAX image and transfer that to the 41CL. You may (or may not) find it easier to key in a FOCAL program with an emulator on a PC or tablet. The go41cxt program on a tablet is well worth the small coin to acquire, and really, really useful all by itself.

~Mark