Vintage-computing relevant IOBCC entry

[Noel Chiappa]

    > From: Bill Degnan

    > I attempted to port the same version of unix to an rl02 disk pack and
    > to run on an actual 11/40. I was able to get ir to boot up to the #
    > prompt but my system does not have a working EIS card to proceed any
    > further.

I"m incredibly surprised that you got to the prompt! First, the V6 RL
bootstrap uses ASH, part of EIS. And then the C compiler makes extensive use
of EIS instructions, so anything in C (the OS, 'init', 'sh', etc) may have EIS
instructions in it.

	Noel