SEC: Add LM3S backend for entropy pulling.

[bertos.git] / bertos / cfg / macros.h

diff --git a/bertos/cfg/macros.h b/bertos/cfg/macros.h
index 4f77b21e6c6c7227492156dea2329e59b9e6f6cf..d0ccf433b23321158bc043d1673c6732e4ebac93 100644 (file)
--- a/bertos/cfg/macros.h
+++ b/bertos/cfg/macros.h
@@ -32,7 +32,6 @@
  *
  * \brief Common and handy function macros
  *
- * \version $Id$
  * \author Bernie Innocenti <bernie@codewiz.org>
  * \author Giovanni Bajo <rasky@develer.com>
  */
@@ -182,6 +181,13 @@
  */
 #define DIV_ROUND(dividend, divisor)  (((dividend) + (divisor) / 2) / (divisor))
 
+/**
+ * Perform an integer division rounding the result to the upper int value.
+ * \note \a divisor should preferibly be a costant, otherwise this macro generates
+ * 2 division. Also divisor is evaluated twice.
+ */
+#define DIV_ROUNDUP(dividend, divisor)  (((dividend) + (divisor) - 1) / (divisor))
+
 /** Round up \a x to an even multiple of the 2's power \a pad. */
 #define ROUND_UP2(x, pad) (((x) + ((pad) - 1)) & ~((pad) - 1))