Re: Question on ProDOS SmartPort drive remapping

[Alex Freed <alexf@mirrow.com>]

glen herrmannsfeldt wrote:
> I don't know DOS/360 well at all.  Its assembler may have a lot of 
> passes given the smaller memory allowed.

Maybe you can still solve a 30+ year old mystery for me :)

The 360 assembly language was the first I ever saw. And I remember a 
mantra a lot (all 3 I saw?) started with. Something like:

BALR 1,0
USING *,1


The BALR must be "branch and link register". I can guess that either "1" 
or "0" was a register that the system put something in?
But what is the USING?

-Alex.