In <1321222276.64681.yahoomail...@web161406.mail.bf1.yahoo.com>, on
11/13/2011
   at 02:11 PM, Ed Gould <ps2...@yahoo.com> said:

>That was a little bit before my time. Is there a possibility you
>could give a short paragraph or so on a stage 1  or (whatever it was
>called became a system), please?

There are three different sets of tapes involved here:

 1. A dump of a starter system with a documented set of
    predefined I/O addresses. It was intended only for doing
    the initial sysgen.

 2. The install tape, containing a dump of the distribution
     library (DLIB) volume. Mostly load module libraries, with
     several f macro libraries.

 3. Optional source tape, containing source code for programs
    shipped as load modules. Generally the first file on set of
    source tapes would be a private macro library.

The sysgen manual described calling the macros for stage 1. You
specified, e.g., the control program scheduler, optional utilities and
I/O configuration, then assembled[1] using the macro definitions in
SYS1.AGENLIB. The output was a stage 2 jobstream, which copied
libraries from DLIB to target, assembled modules using SYS1.AMACLIB
and SYS1.AMODGEN, link edited modules and ran a few miscellaneous
utilities.

[1] The stage 1 macros didn't generate any actual code, just
    PUNCH statements.
 
-- 
     Shmuel (Seymour J.) Metz, SysProg and JOAT
     ISO position; see <http://patriot.net/~shmuel/resume/brief.html> 
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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