On Sep 12, 2010, at 21:44, Justin R. Bendich wrote: >> >> :> LA R3,512(R2,) <- Variant 2 >> >> :>or >> >> :> LA R3,512(,R2) <- Variant 3 >> >> :>? >> >> The latter, as the assembler will not insert an index register. > > So, you're saying that, in Variant 2, it could fill in the missing > base register if i don't explicitly specify it as 0? > There's four bits there. They must be variously 0's or 1's. By default, they're all 0.
-- gil
