From c626d4b1794a9597f168f82420a1d3deab4c6642 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Sat, 17 May 2008 18:04:56 +0000
Subject: Add mmx equivalent paddb function

git-svn-id: svn://mattst88.com/svn/alpha_mmintrin/trunk@5 f7d56953-e76f-4e43-a77e-20d50f6c004e
---
 alpha_mmintrin.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/alpha_mmintrin.h b/alpha_mmintrin.h
index 525f04d..d741005 100644
--- a/alpha_mmintrin.h
+++ b/alpha_mmintrin.h
@@ -45,7 +45,18 @@ __ctlz(uint64_t val) {
 	return ret;
 }
 
-/* Add the 16-bit values in M1 to the 16-bit values in M2 (paddw).  */
+/* Add the 8-bit values in M! to the 8-bit values in M2 (paddb). */
+static __inline uint64_t
+__addub8(uint64_t m1, uint64_t m2) {
+	uint64_t signs = (m1 ^ m2) & 0x8080808080808080;
+	m1 &= ~signs;
+	m2 &= ~signs;
+	m1 += m2;
+	m1 ^= signs;
+	return m1;
+}
+
+/* Add the 16-bit values in M1 to the 16-bit values in M2 (paddw). */
 static __inline uint64_t
 __adduw4(uint64_t m1, uint64_t m2) {
 	uint64_t signs = (m1 ^ m2) & 0x8000800080008000;
-- 
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