The BPS "supervisor" took 2K, which left 6K for the "application" program.  I 
never ran this way on an 8K model 30, but you were supposedly able to configure 
a model 30 with only 8K.  The one I used had 16K.  This left me with a whopping 
14K for my application, which Dave Freeman once described to me as "oceans of 
core", so why was I having so much trouble getting all my logic in 14K, he 
wanted to know.  :-)

And I used BAL, the Basic Assembler Language, which had many restrictions that 
the TOS and DOS assemblers did not.  E.g., statement labels were limited to 6 
characters.

In those days I had to pay close attention to instruction lengths (not the same 
as path lengths).  I was so relieved when we upgraded to a 64K machine with 
DOS/360.  Then all I had to care about was instruction timings.  Now that was 
OCEANS of core compared to the 16K machine.

Bill Fairchild
Rocket Software

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of 
Shmuel Metz (Seymour J.)
Sent: Sunday, August 01, 2010 6:52 AM
To: IBM-MAIN@bama.ua.edu
Subject: Re: History of Hard-coded Offsets (Was: TSSO problems)

In
<77142d37c0c3c34da0d7b1da7d7ca343c49...@nwt-s-mbx1.rocketsoftware.com>,
on 07/20/2010
   at 03:31 PM, Bill Fairchild <bi...@mainstar.com> said:

>The Assembler I used in 1966 ran in 8K under BPS/360

Ah, so you're one of the few people on this list that actually did use
BAL.
 
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