If you have to ask, it doesn't matter. sas
On Wed, Mar 10, 2021 at 6:27 PM Schmitt, Michael <michael.schm...@dxc.com> wrote: > I was taught long ago to add 1 to a register using LA r#,1(,r#) and to > subtract 1 using BCTR r#,0. > > Is the fastest way now to use AHI r#,1 and AHI r#,-1? >
