From 98f9d442b44dbe2e3e4b3c8296be7e78d5d05450 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Sun, 24 Jul 2011 09:39:28 +0200
Subject: initial import of the usb ccid example for the sam7s

---
 at91lib/utility/math.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 at91lib/utility/math.c

(limited to 'at91lib/utility/math.c')

diff --git a/at91lib/utility/math.c b/at91lib/utility/math.c
new file mode 100644
index 0000000..6012385
--- /dev/null
+++ b/at91lib/utility/math.c
@@ -0,0 +1,91 @@
+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support 
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * 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 disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include "math.h"
+#include "trace.h"
+
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Returns the minimum value between two integers.
+/// \param a  First integer to compare.
+/// \param b  Second integer to compare.
+//------------------------------------------------------------------------------
+unsigned int min(unsigned int a, unsigned int b)
+{ 
+    if (a < b) {
+
+        return a;
+    }
+    else {
+
+        return b;
+    }
+}
+
+//------------------------------------------------------------------------------
+/// Returns the absolute value of an integer.
+/// \param value  Integer value.
+//------------------------------------------------------------------------------
+// Do not call this function "abs", problem with gcc !
+unsigned int absv(signed int value)
+{
+    if (value < 0) {
+
+        return -value;
+    }
+    else {
+
+        return value;
+    }
+}
+
+//------------------------------------------------------------------------------
+/// Computes and returns x power of y.
+/// \param x  Value.
+/// \param y  Power.
+//------------------------------------------------------------------------------
+unsigned int power(unsigned int x, unsigned int y)
+{
+    unsigned int result = 1;
+    
+    while (y > 0) {
+
+        result *= x;
+        y--;
+    } 
+    return result;
+}
+
-- 
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