On Mon, Dec 2, 2019 at 8:31 AM Steve Smith <[email protected]> wrote:
> Yep, serious, at least as far as a moot & hypothetical discussion of > history goes. There are (hypothetically) other ways to handle those > issues. > > Having R15 as the incoming EPA has never been more than a convenience > anyway. The first example program in my first assembler class (long before > MVS/XA, much less relative addressing) used BALR 12,0 to set the base > address. > I used to do that too. What I didn't like was the offsets from the base was two bytes less than the offsets in the assembler listing. Therefore I did two BCTR base,0 instructions after the BALR to "make them correct". > > sas > > > -- > sas > -- People in sleeping bags are the soft tacos of the bear world. Maranatha! <>< John McKown
