On Sun, 12 Sep 2010 17:53:13 -0400 "Justin R. Bendich" <[email protected]> wrote:
:>LA R1,256 <- Line 1 :> USING 256,R1 <- Line 2 :> LA R3,512(R2) <- Line 3 :>The thread has been that, because of line 2, the assembler will :>generate line 3 as follows: :> 4132 1100 LA R3,512(R2) Could be. :>If what i really want is for R3 to contain R2 + 512 (subject to :>addressing-mode constraints, as usual), does this mean that i :>really should be coding either :> LA R3,512(R2,) <- Variant 2 :>or :> LA R3,512(,R2) <- Variant 3 :>? The latter, as the assembler will not insert an index register. :>Note that these instructions do not always do the same thing. :>In AR mode, Variant 2 will set AR3 to zero, whereas Variant 3 :>will copy AR2 to AR3. Neither will alter ARs. LAE would. -- Binyamin Dissen <[email protected]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies.
