Donatien Garnier / MiniTLS-GPL

A super trimmed down TLS stack, GPL licensed

Dependents:   MiniTLS-HTTPS-Example

MiniTLS - A super trimmed down TLS/SSL Library for embedded devices Author: Donatien Garnier Copyright (C) 2013-2014 AppNearMe Ltd

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Diff: math/bit/fp_lshd.c

Revision:
0:35aa5be3b78d
diff -r 000000000000 -r 35aa5be3b78d math/bit/fp_lshd.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/math/bit/fp_lshd.c	Fri Jun 06 10:49:02 2014 +0000
@@ -0,0 +1,38 @@
+/* TomsFastMath, a fast ISO C bignum library.
+ * 
+ * This project is meant to fill in where LibTomMath
+ * falls short.  That is speed ;-)
+ *
+ * This project is public domain and free for all purposes.
+ * 
+ * Tom St Denis, tomstdenis@gmail.com
+ */
+#include <tfm.h>
+
+void fp_lshd(fp_int *a, int x)
+{
+   int y;
+
+   /* move up and truncate as required */
+   y = MIN(a->used + x - 1, (int)(FP_SIZE-1));
+
+   /* store new size */
+   a->used = y + 1;
+
+   /* move digits */
+   for (; y >= x; y--) {
+       a->dp[y] = a->dp[y-x];
+   }
+ 
+   /* zero lower digits */
+   for (; y >= 0; y--) {
+       a->dp[y] = 0;
+   }
+
+   /* clamp digits */
+   fp_clamp(a);
+}
+
+/* $Source: /cvs/libtom/tomsfastmath/src/bit/fp_lshd.c,v $ */
+/* $Revision: 1.1 $ */
+/* $Date: 2006/12/31 21:25:53 $ */