From: arighi <arighi@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Wed, 31 Mar 2010 14:41:54 +0000 (+0000)
Subject: CM3: introduce PAUSE macro.
X-Git-Tag: 2.5.0~553
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=d0572a80f941a4effe27a75efe1aa30b453cfb57;p=bertos.git

CM3: introduce PAUSE macro.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3355 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cpu/attr.h b/bertos/cpu/attr.h
index 8fdcb1c8..ad2945af 100644
--- a/bertos/cpu/attr.h
+++ b/bertos/cpu/attr.h
@@ -185,11 +185,12 @@
 	#endif
 
 	#define NOP         asm volatile ("nop")
+	#define PAUSE       asm volatile ("wfi" ::: "memory")
 	#define BREAKPOINT  /* asm("bkpt 0") DOES NOT WORK */
 
 	/*
-	 * Builtin GCC memset() can be buggy! We need to redefine it here for
-	 * this architecture. :(
+	 * FIXME: builtin GCC memset() can be buggy! We need to redefine it
+	 * here for this architecture. :(
 	 */
 	#include <cfg/compiler.h>
 	#define memset	__cm3_memset