From 5055ee55d1330b52182a35378f5b4f8055cefc54 Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Tue, 22 Jul 2014 16:24:43 +0200
Subject: Convert printf into puts

Removes ~1.5k code size, still not working.
---
 common.h | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'common.h')

diff --git a/common.h b/common.h
index 26b371d..5957da3 100644
--- a/common.h
+++ b/common.h
@@ -10,8 +10,18 @@
 	sleep_disable ();
 
 #define __unused__ __attribute__ ((unused))
-/* print assert messages */
-#define __ASSERT_USE_STDERR
+
+/* define lightweight assert (without printf) that halts the cpu */
+#include <stdio.h>
+#include <avr/sleep.h>
+#include <avr/interrupt.h>
+#define assert(x) if (!(x)) { \
+		puts("assert in " __FILE__ ":" #x); \
+		sleep_enable (); \
+		while (1) { \
+			sleep_cpu (); \
+		} \
+	}
 
 #endif /* COMMON_H */
 
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