1 files changed, 7 insertions, 0 deletions
diff --git a/include/global.h b/include/global.h
index 5c4501be3..9588deae3 100644
--- a/include/global.h
+++ b/include/global.h
@@ -32,6 +32,13 @@
 // GF's lingo
 #define NELEMS ARRAY_COUNT
 
+#define SWAP(a, b, temp)    \
+{                           \
+    temp = a;               \
+    a = b;                  \
+    b = temp;               \
+}
+
 // useful math macros
 
 // Converts a number to Q8.8 fixed-point format