MVHHI STRGLEN,0?
Mark 
(sent from my iPhone)

> On Feb 9, 2026, at 12:48, David Clark <[email protected]> wrote:
> 
> If a half-word counter has to be in storage (to save on registers) and must
> start at zero, which is better or which would you prefer to do as a best
> practice?
> 
> ...simply clear storage?
> 
> XC    STRGLEN,STRGLEN    FOR USED STRING LENGTH COUNTER
> 
> ...or clear a register and save to storage?
> 
> XR    R5,R5              STARTING AT ZERO
> STH   R5,STRGLEN          SET USED STRING LENGTH COUNTER
> 
> ...or use an immediate value and save to storage?
> 
> LHI   R5,0               STARTING AT ZERO
> STH   R5,STRGLEN          SET USED STRING LENGTH COUNTER
> 
> Sincerely,
> 
> Dave Clark
> --
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> 
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