On Tue, 27 Nov 2012 10:01:17 -0800, Henry Willard wrote: >Thomas David Rivers wrote: > >> When the condition specified by the M3 field is not met (that is, >> store operation is not performed), it is model dependent ... > >It seems likely someone or some group at IBM have a use for this, or it would >not have been added to the architecture. ... > But what plausible use do you envision that anyone or any group at IBM might have for the "model dependent" character? It requires that software developers test on every available and possible future system. Simply, it's irresponsible not to have made the behavior consistent across models. If it's going to fail on some models, it should be designed to fail likewise on all models. Perhaps with SIE?
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