From ffb6a9db8e1aeef43306e5f0c83c1547bd82546b Mon Sep 17 00:00:00 2001
From: Björn Stenberg <bjorn@haxx.se>
Date: Fri, 24 May 2002 12:21:51 +0000
Subject: Added NULL, MIN and MAX

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@694 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/system.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'firmware')

diff --git a/firmware/system.h b/firmware/system.h
index 9b1df03217..fdc472f5e2 100644
--- a/firmware/system.h
+++ b/firmware/system.h
@@ -25,6 +25,18 @@
 #define FREQ     12000000 /* cycle time ~83.3ns */
 #define BAUDRATE 9600
 
+#ifndef NULL
+#define NULL ((void*)0)
+#endif
+
+#ifndef MIN
+#define MIN(a, b) (((a)<(b))?(a):(b))
+#endif
+
+#ifndef MAX
+#define MAX(a, b) MIN(b,a)
+#endif
+
 #ifdef LITTLE_ENDIAN
 #define SWAB16(x) (x)
 #define SWAB32(x) (x)
-- 
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