assembly - Why REP can be added to any String Data Transfer except LOADS? -
rep stosb (stosw or stosd ) rep movsb rep insb rep outsb
those string data transfer allowed rep lodsb
not ?
the rep lodsb
, rep lodsw
, rep lodsd
, rep lodsq
instructions valid. there's never use them though, can't data you've loaded.
the case can think of might useful areas of memory mapped io read side-effects (which extremely rare).
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