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-rw-r--r--sys/amd64/include/specialreg.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/amd64/include/specialreg.h b/sys/amd64/include/specialreg.h
index 7538259..935b1ed 100644
--- a/sys/amd64/include/specialreg.h
+++ b/sys/amd64/include/specialreg.h
@@ -31,9 +31,12 @@
* SUCH DAMAGE.
*
* from: @(#)specialreg.h 7.1 (Berkeley) 5/9/91
- * $Id$
+ * $Id: specialreg.h,v 1.2 1993/10/16 14:39:32 rgrimes Exp $
*/
+#ifndef _MACHINE_SPECIALREG_H_
+#define _MACHINE_SPECIALREG_H_ 1
+
/*
* Bits in 386 special registers:
*/
@@ -58,3 +61,4 @@
#ifdef notyet
#define CR0_AM 0x00040000 /* Alignment Mask (set to enable AC flag) */
#endif
+#endif /* _MACHINE_SPECIALREG_H_ */
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