[Simh] KE11A support patch

[Brad Parker]

Rich Alderson wrote:
>> From: Brad Parker <brad at heeltoe.com>
>> Date: Sat, 03 May 2008 07:16:19 -0400
>
>> In order to boot v1 unix, we needed to add support to simh for the
>> KE11A.  I grabbed some of the code in 'apout' and made a simple KE
>> device.  Basically its a unibus based math device with a few registers
>> in the address space.
>
>I have to ask:  What do you mean by "v1 unix"?  The earliest versions of UNIX
>ran on the PDP-7, and certainly did not have (PDP-11) Unibus support of any
>kind.

dmr himself refers to it as "1st edition".  I guess v1 is not accurate,
sorry.

It's the first edition ("1ed") unix which ran on a pdp-11/20 with EAE.

The project is know as "unix-jun72" because that's the date of the memo
which published a listing of the kernel source code.

-brad