On Jun 6, 2012, at 07:28, Watkins, Douglas wrote:
> Here's one way to do standard EXecute without a base register:
>
> AHI R2,-1 Minus 1 for EX
> *!not yetEXRL R2,_EX_MVC_OUTPUT (Move data to output buffer)
> LARL R10,_EX_MVC_OUTPUT Move data to
> EX R2,0(,R10) output buffer
>
Well, R10 looks like a base register to me. If you're
critically register-constrained, this may be a problem.
You could likewise do:
AHI R2,-1 Minus 1 for EX
BALR R10,0
EX R2,EX_MVC_OUTPUT-*(,R10)
... in fewer bytes of code (if I got it right).
-- gil
