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Notes on CP/M

My two primary CP/M machines are the RC2014 mini and the SC131 pocket

Z80. Hopefully the Kaypro will join them soon.

Transferring files

The best way to transfer files is with XM.COM, the XMODEM transfer

program that comes with RomWBW. Minicom comes with builtin support and

I found it to work more reliably than my attempts at using picocom.

On the CP/M system:

XM R E:FILE.DAT

Then, in Minicom, ^A S will let you send a file with XMODEM.

If you're using the distribution that comes with the RC2014, you're

stuck with using Grant Searle's packager. It works, and you'll find

utilities for transferring files both in the RC2014 repo and a Python

script floating around. The C program will just dump to standard out,

requiring that you copy-paste into the terminal window; the Python

version will actually transfer over serial. I had to make a few small

tweaks to get this to work reliably, namely adding a delay in between

file transfers and adding a 0x13 0x10 (carriage return + newline) at

the end of each file.