MIPS opcodes patch: change move from andu to or
Ian Lance Taylor
Mon Oct 25 10:31:00 GMT 1999
Date: Mon, 25 Oct 1999 11:19:28 -0400 (EDT)
From: Gavin Romig-Koch <email@example.com>
OK to commit?
* mips-opc.c (move): Use "or" rather than "addu" or "daddu".
We deliberately chose ``addu'' and ``daddu'' rather than ``or''
because several MIPS chips have two pipelined addition units but only
one pipelined logical unit. Those chips can move two pairs of
registers around at once if we use ``addu'', but they can only move
one pair if we use ``or''.
Is there any reason we should use ``or''? Your comment mentions
something about ``gcc -mips3 -gp32''; can't we fix gcc?
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