From 58679ac700107ff60ac6f7e0e642ae72dff99f8e Mon Sep 17 00:00:00 2001
From: Jennifer Averett <Jennifer.Averett@OARcorp.com>
Date: Thu, 14 Jul 2011 14:44:47 +0000
Subject: 2011-07-14	Jennifer Averett

	* make/custom/pcp4.cfg: New file.
---
 c/src/lib/libbsp/i386/pc386/ChangeLog            |  4 +++
 c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg | 37 ++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg

diff --git a/c/src/lib/libbsp/i386/pc386/ChangeLog b/c/src/lib/libbsp/i386/pc386/ChangeLog
index ca2c6a6690..16e2af963f 100644
--- a/c/src/lib/libbsp/i386/pc386/ChangeLog
+++ b/c/src/lib/libbsp/i386/pc386/ChangeLog
@@ -1,3 +1,7 @@
+2011-07-14	Jennifer Averett
+
+	* make/custom/pcp4.cfg: New file.
+
 2011-06-19	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* Makefile.am: Fix broken path to clockdrv_shell.h.
diff --git a/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg b/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg
new file mode 100644
index 0000000000..68babd64a4
--- /dev/null
+++ b/c/src/lib/libbsp/i386/pc386/make/custom/pcp4.cfg
@@ -0,0 +1,37 @@
+#
+#  Configuration file for a PC using a Pentium Class CPU
+#
+#  $Id$
+#
+
+RTEMS_CPU_MODEL=pentium
+
+#  This contains the compiler options necessary to select the CPU model
+#  and enable architecture-specific features and extensions.
+
+#  Note that the vanilla gcc multilibs for RTEMS are a joke. The
+#  variants only differ by a -mtune=xxx option which merely 'optimizes'
+#  for 'xxx' but does not use the full instruction set 'xxx' may implement.
+#  (fully bwd compatible with i386).
+#
+#  I'd recommend to roll your own set of (useful) multilibs instead...
+#
+#  Useful variants would be
+#    <default> (i386) (generic 386 with hard-float)
+#    -msoft-float     (generic 386 with soft-float)
+#    -march=pentium4  (P4 with sse2)
+#
+#  Note also: we give the -mtune=pentium option here only so that at least the
+#             variant optimized for pentium (w/o using any pentium-specific
+#             features) is used (assuming you use the vanilla RTEMS multilibs).
+#  
+#  And: The only sse-related feature the RTEMS support really needs is
+#             fxsave/fxrstor. You can build with -msse, -msse2 or -msse3,
+#             depending on your CPU.
+#             There are run-time checks resulting in a 'panic' if code
+#             compiled for e.g. -msse3 is executed on a CPU that only
+#             supports sse2, though.
+CPU_CFLAGS = -mtune=pentium4 -march=pentium4 -msse3
+
+include $(RTEMS_ROOT)/make/custom/pc386.cfg
+
-- 
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