From: Jakob Gruber <jakob.gruber@gmail.com>
Date: Thu, 2 Aug 2012 07:49:34 +0000 (+0200)
Subject: core: Introduce a logging macro AVR_LOG()
X-Git-Url: http://git.rot13.org/?a=commitdiff_plain;h=b8993c5f0de4c62c7ed9718612f028ad27fd31d9;p=simavr

core: Introduce a logging macro AVR_LOG()

This works in conjunction with avr->log to tune out messages we are not
interested in. LOG_ERROR is the default level.
---

diff --git a/simavr/sim/sim_avr.h b/simavr/sim/sim_avr.h
index 737b3ce..db41e41 100644
--- a/simavr/sim/sim_avr.h
+++ b/simavr/sim/sim_avr.h
@@ -61,6 +61,21 @@ enum {
 #define AVR_DATA_TO_IO(v) ((v) - 32)
 #define AVR_IO_TO_DATA(v) ((v) + 32)
 
+/**
+ * Logging macros and associated log levels.
+ * The current log level is kept in avr->log.
+ */
+enum {
+	LOG_ERROR = 1,
+	LOG_WARNING,
+	LOG_TRACE,
+};
+#define AVR_LOG(avr, level, ...) \
+	do { \
+		if (avr->log >= level) \
+			fprintf(stdout, __VA_ARGS__); \
+	} while(0)
+
 /*
  * Core states.
  */