On Mon, 22 May 2017 10:50:23 +0300, Binyamin Dissen wrote:
>:>>
>:>Does it save one GETMAIN?  Some advocate appending the workarea to
>:>the register save area to save another GETMAIN.
>
>You should put the areas that will be mapped by the macro. The mapping macro
>itself should not be placed in that part of the source.
> 
Dependent USING with DSECT=NO may make it practical to coalesce
mappings in that fashion.

-- gil

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