> Is there a good "Open Firmware Forth for Dummies" book somewhere?  I have
> the ieee 1275-1994 spec and I've read the Apple tech notes on using OF,
> but neither seems to be a very good intro to, for example, making sense
> of the contents of the nvramrc.

There are some pointers on the IEEE 1275 WG site.

http://www.openfirmware.org/1275/home.html#OFdocumentation

I don't know whether any of them are any good or not.

-- Dan