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Freescale hc11/12 port extension to s12x / xgate
- From: James Murray <jsm at jsm-net dot demon dot co dot uk>
- To: gcc at gcc dot gnu dot org
- Date: Wed, 12 May 2010 14:53:21 +0100
- Subject: Freescale hc11/12 port extension to s12x / xgate
Announce. I have posted some patches to gcc and binutils to better
support Freescale S12X and XGATE cores.
See:
http://www.msextra.com/tools/s12x-20100504.zip
This contains rolled up patches against.
gcc-3.3.6
binutils-2.18
newlib-1.16-0
The patches include Stephane Carrez' patches and add binutils support
for the S12X instructions and XGATE core.
gcc contains a hand coded S12X assembler version of udivsi32 which is
faster than the original C version.
gcc/binutils modified to allow the m9s12x xgate CPU target flags to be
passed but do not otherwise use them.
Typical Makefile likes would be:
CFLAGS = -g -Wall -Werror -O -fomit-frame-pointer -m9s12x -mshort
-msoft-reg-count=5 -mauto
-incdec -fsigned-char -DGCC_BUILD -Wa,-mm9s12x
XFLAGS = -g -Wall -Werror -O -fomit-frame-pointer -m9s12xg -mshort
-msoft-reg-count=5 -maut
o-incdec -fsigned-char -DGCC_BUILD -Wa,-mxgate
XGATE assembly appears functional.
Probably best discussed on
http://tech.groups.yahoo.com/group/gnu-m68hc11
regards
James