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diff --git a/arch/alpha/osfpal.hh b/arch/alpha/osfpal.hh
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+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __OSFPAL_HH__
+#define __OSFPAL_HH__
+
+struct PAL
+{
+    enum {
+        // Privileged PAL functions
+        halt = 0x00,
+        cflush = 0x01,
+        draina = 0x02,
+        cserve = 0x09,
+        swppal = 0x0a,
+        wripir = 0x0d,
+        rdmces = 0x10,
+        wrmces = 0x11,
+        wrfen = 0x2b,
+        wrvptptr = 0x2d,
+        swpctx = 0x30,
+        wrval = 0x31,
+        rdval = 0x32,
+        tbi = 0x33,
+        wrent = 0x34,
+        swpipl = 0x35,
+        rdps = 0x36,
+        wrkgp = 0x37,
+        wrusp = 0x38,
+        wrperfmon = 0x39,
+        rdusp = 0x3a,
+        whami = 0x3c,
+        retsys = 0x3d,
+        wtint = 0x3e,
+        rti = 0x3f,
+
+        // unprivileged pal functions
+        bpt = 0x80,
+        bugchk = 0x81,
+        callsys = 0x83,
+        imb = 0x86,
+        urti = 0x92,
+        rdunique = 0x9e,
+        wrunique = 0x9f,
+        gentrap = 0xaa,
+        clrfen = 0xae,
+        nphalt = 0xbe,
+        NumCodes
+    };
+
+    static const char *name(int index);
+};
+
+#endif // __OSFPAL_HH__