[TUHS] Update on UNIX V1 OCR

[TUHS] Update on UNIX V1 OCR

[James A. Markevitch]

I got a chance to do some work on the UNIX V1 sources this evening.  I
took the output of my OCR software and with a couple of hours of editing,
it successfully assembles with a MACRO11 assembler modified for "as" syntax,
with the only exception being that "fpsym" is undefined.  It looks like
the floating point emulation code is missing.

Since this OCR is independent of the other work that has been done, a
diff should provide an opportunity to fix any errors in the comments
that would not have been caught by the assembler.

Is there a place to upload this without a Google account?  The assembler
listing is about 416K.

I wrote much of the bootstrap code a few weeks ago, so it ought to be
straightforward to get this up and running under simulation.

James Markevitch

[TUHS] [Unix-jun72] Update on UNIX V1 OCR

[Brad Parker]

"James A. Markevitch" wrote:
>
>Since this OCR is independent of the other work that has been done, a
>diff should provide an opportunity to fix any errors in the comments
>that would not have been caught by the assembler.
>
>Is there a place to upload this without a Google account?  The assembler
>listing is about 416K.

If you email me a tar file (or zip) I can put it on my website.  I can
receive email up to about 10mb. If it's larger than that I can set up
with an ftp account.

I'd also be happy to write a script to diff the files.

>I wrote much of the bootstrap code a few weeks ago, so it ought to be
>straightforward to get this up and running under simulation.

yes - I found a program I wrote a while back which takes an a.out and
turns it into a simh "load format".  With that it's pretty easy to load
and go in simh.

The v1 man pages explain the "bos" load setup and give the rf bootstrap
code.  It should be pretty easy to boot up a "cold" version which preps
the RF. I'm not sure about loading the file system from dectape however,
but who knows, even that might be possible.

-brad