diff options
| author | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-16 20:59:10 +0000 |
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| committer | darylm503 <darylm503@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-16 20:59:10 +0000 |
| commit | c614ca505dd2947acbd111e2764056aeac2012ad (patch) | |
| tree | ba9bbea3d94c2265d40377307b73032c694981aa /StdLib/Include/Arm/machine/byte_swap.h | |
| parent | 9c6595dca0fc1985a4170fa5503a7132d3445ac8 (diff) | |
| download | edk2-platforms-c614ca505dd2947acbd111e2764056aeac2012ad.tar.xz | |
StdLib: Patches and updates for ARM.
Add ARMGCC and RVCT toolchain support.
Update and Add ARM specific machine headers.
Set the empty macro for __warn_references().
Make __flt_rounds() return 'Round to nearest' by default on ARM.
Signed-off-by: Olivier Martin [olivier.martin@arm.com]
Reviewed-by: darylm503
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12367 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'StdLib/Include/Arm/machine/byte_swap.h')
| -rw-r--r-- | StdLib/Include/Arm/machine/byte_swap.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/StdLib/Include/Arm/machine/byte_swap.h b/StdLib/Include/Arm/machine/byte_swap.h new file mode 100644 index 0000000000..2a0264599f --- /dev/null +++ b/StdLib/Include/Arm/machine/byte_swap.h @@ -0,0 +1,63 @@ +/*-
+ * Copyright (c) 1997, 1999, 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum, Neil A. Carson, and Jason R. Thorpe.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _ARM_BYTE_SWAP_H_
+#define _ARM_BYTE_SWAP_H_
+
+#ifdef __GNUC__
+#include <sys/types.h>
+__BEGIN_DECLS
+
+#define __BYTE_SWAP_U32_VARIABLE __byte_swap_u32_variable
+static __inline uint32_t
+__byte_swap_u32_variable(uint32_t v)
+{
+ uint32_t t1;
+
+ t1 = v ^ ((v << 16) | (v >> 16));
+ t1 &= 0xff00ffffU;
+ v = (v >> 8) | (v << 24);
+ v ^= (t1 >> 8);
+ return (v);
+}
+
+#define __BYTE_SWAP_U16_VARIABLE __byte_swap_u16_variable
+static __inline uint16_t
+__byte_swap_u16_variable(uint16_t v)
+{
+
+ v &= 0xffff;
+ v = (v >> 8) | (v << 8);
+ return (v);
+}
+
+__END_DECLS
+#endif
+
+#endif /* _ARM_BYTE_SWAP_H_ */
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