More fun stuff added

[Bill E]

A new example program, switcher, is in my repo. It's almost like a real OS. :)

It runs in bank 1, listens for a connection request on port 2022, and then lets you select a program stored on the drum by drumloader, load it and run it. As long as the program doesn't overwrite 0-3 or 7751 up, it will continue to listen so you can launch a new program when you want.

It uses the Type 23 drum IOTs and the Data Communications System IOT, as well as my

new macro preprocessor. Why the preprocessor? Two words, include files. The processed macro source is also included.

There are also a lot of doc updates, include files for my IOTs, as well as some small utility code includes to work with DCS.

As usual, in https://github.com/wjenh/pidp1-mods.git

Bill

[Bill E]

Ok, a boring one, but the text is all flexo in the assembly code, DCS2 does the in/out conversions for you.

Bill