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authorJonathan Lennox <jonathan@vidyo.com>2015-11-21 07:03:58 +0300
committerTimothy B. Terriberry <tterribe@xiph.org>2016-07-07 01:00:02 +0300
commit512f17a2526e307ece4651dc4c682c0f044666b3 (patch)
tree585fb920c6e84ba1a978648be0b6ffcfeccfe345 /silk/arm
parent879736037b9742c9e38d0814fdc3ef836fd90b71 (diff)
Add Aarch64 intrinsics for saturated add/subtract.
Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>
Diffstat (limited to 'silk/arm')
-rw-r--r--silk/arm/macros_arm64.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/silk/arm/macros_arm64.h b/silk/arm/macros_arm64.h
new file mode 100644
index 00000000..ed030413
--- /dev/null
+++ b/silk/arm/macros_arm64.h
@@ -0,0 +1,39 @@
+/***********************************************************************
+Copyright (C) 2015 Vidyo
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+- Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+- 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.
+- Neither the name of Internet Society, IETF or IETF Trust, nor the
+names of specific contributors, may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 SILK_MACROS_ARM64_H
+#define SILK_MACROS_ARM64_H
+
+#include <arm_neon.h>
+
+#undef silk_ADD_SAT32
+#define silk_ADD_SAT32(a, b) (vqadds_s32((a), (b)))
+
+#undef silk_SUB_SAT32
+#define silk_SUB_SAT32(a, b) (vqsubs_s32((a), (b)))
+
+#endif /* SILK_MACROS_ARM64_H */