On 2013-11-21, at 19:37, Jon Perryman wrote:
> R10 EQU 10 simply means use the value of 10. It has nothing to do with
> register 10 except when used in a place where a register is expected.
> ...
> Use of R10 is simply a way to make the code a little more readable.
>
Doesn't HLASM nowadays support defining symbols with a "Register"
attribute? But how is this useful? Can HLASM issue warnings when
a register symbol is used in a place where a register is not expected?:
LA R1,R10 * Did the programmer mean LR?
If this facility had been aboriginal, IHBINRRA could have been far
less complex. Alas compatibility precludes any retrofitting.
-- gil
