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diff --git a/system/alpha/h/eb66mem.h b/system/alpha/h/eb66mem.h
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+#ifndef __EB66MEM_H_LOADED
+#define __EB66MEM_H_LOADED
+/*****************************************************************************
+
+       Copyright © 1993, 1994 Digital Equipment Corporation,
+                       Maynard, Massachusetts.
+
+                        All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted, provided
+that the copyright notice and this permission notice appear in all copies
+of software and supporting documentation, and that the name of Digital not
+be used in advertising or publicity pertaining to distribution of the software
+without specific, written prior permission. Digital grants this permission
+provided that you prominently mark, as not part of the original, any
+modifications made to this software or documentation.
+
+Digital Equipment Corporation disclaims all warranties and/or guarantees
+with regard to this software, including all implied warranties of fitness for
+a particular purpose and merchantability, and makes no representations
+regarding the use of, or the results of the use of, the software and
+documentation in terms of correctness, accuracy, reliability, currentness or
+otherwise; and you rely on the software, documentation and results solely at
+your own risk.
+
+******************************************************************************/
+
+/*
+ *  $Id: eb66mem.h,v 1.1.1.1 1997/10/30 23:27:15 verghese Exp $;
+ */
+
+/*
+ * $Log: eb66mem.h,v $
+ * Revision 1.1.1.1  1997/10/30 23:27:15  verghese
+ * current 10/29/97
+ *
+ * Revision 1.2  1994/08/05  20:13:47  fdh
+ * Updated Copyright header and RCS $Id: identifier.
+ *
+ * Revision 1.1  1994/07/21  18:11:01  fdh
+ * Initial revision
+ *
+ */
+
+#ifdef EB66
+
+#include "system.h"
+#include "prtrace.h"
+#include "lib.h"
+
+/*
+ *  Definition for the Cache Register (CAR):
+ */
+#define CAR_OFFSET 		0x78
+#define CAR_M_BCE		0x1
+
+/*
+ *  Macros used to access the memory controller
+ *  csr's.
+ */
+#define MEM_CSR(x)        (((ul)0x12<<28)|(ul)(x))
+#define _IN_MEM_CSR(p)    (ReadQ(MEM_CSR(p)))
+#define _OUT_MEM_CSR(p,d) WriteQ((MEM_CSR(p)),d);mb();
+
+#define BANKSIZE_MAX 128
+#define BANKSIZE_MIN 8
+#define _max(a,b) (a>b ? a : b)
+#define _min(a,b) (a>b ? b : a)
+#define NONCACHEABLE (0x2<<28)
+#define PATTERN (ui) 0x5A5A5A5A
+#define MEM_RW1C 0x1686
+
+#endif /* EB66 */
+#endif /* __EB66MEM_H_LOADED */