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i960 config
- To: egcs-bugs at cygnus dot com
- Subject: i960 config
- From: Neal Becker <neal at ctd dot comsat dot com>
- Date: Tue, 6 Jan 1998 16:46:20 -0500
I believe the i960 config for gcc is incorrect. The various
processors are not compatible, so the multilib support needs to be
expanded. Right now it only chooses between mnumeric/msoft-float.
I believe it should be more like:
MULTILIB_OPTIONS=mka/mkb/mca
MULTILIB_DIRNAMES=
There could be some more choices as well, but be careful! gcc
recognizes more choices than gas supports (cs for example is supported
by egcs but not by binutils-2.8.1.0.18/gas).
Each model processor apparantly uniquely specifies whether or not
floating point hw is present. So unlike some other families e.g.,
68k, we don't want to build with:
MULTILIB_OPTIONS=mnumerics/msoft-float mka/mkb/mca
What I'm not sure is how to get floating point correct. Is the first
choice I showed above going to be correct? Or is it necessary to
explicitly add something to switch between mnumerics/msoft-float as we
switch cpu options?