[Oberon] PO2013 - SD Image Tool

[Paul Reed]

Hi Tomas,

> Excellent, it was already addressed. I was always curious what people
> around NW did back in 2013 to make original image.

Prof. Wirth built the system by meticulously transferring everything 
across the RS232 link, using a special Inner Core imported by a simple 
command interpreter on the RISC5 called Oberon0.  See section 14.1 of 
the book:

https://inf.ethz.ch/personal/wirth/ProjectOberon/PO.Applications.pdf

Since this process depended heavily on another Oberon system on a host 
computer, I made some rather hacky cross-tools to build a downloadable 
SD-card image for projectoberon.com.

I explained some of the (mainly defensive) rationale for the format of 
the RISC.img image in a previous post:

http://lists.inf.ethz.ch/pipermail/oberon/2016/008881.html

HTH,
Paul