From f13fd113b07c351e8024ec85fa339b64c31994cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Sat, 31 Mar 2012 21:23:19 +0200
Subject: [PATCH] New macro, ROTL32.
---
ChangeLog | 5 +++++
macros.h | 2 ++
2 files changed, 7 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 0b650a5e..483f337f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-03-31 Niels Möller <nisse@lysator.liu.se>
+
+ * macros.h (ROTL32): New macro, to replace (almost) all other
+ rotation macros.
+
2012-03-30 Niels Möller <nisse@lysator.liu.se>
* nettle-internal.c (nettle_salsa20): Cipher struct for
diff --git a/macros.h b/macros.h
index 9a57b150..f12deab4 100644
--- a/macros.h
+++ b/macros.h
@@ -119,6 +119,8 @@ do { \
(dst) += (blocksize), \
(src) += (blocksize)) )
+#define ROTL32(n,x) ((((x))<<(n)) | (((x))>>(32-(n))))
+
/* Requires that size >= 2 */
#define INCREMENT(size, ctr) \
do { \
--
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