--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.asmdis/src/com/sun/max/asm/ia32/IA32IndexRegister32.java	Sat Dec 17 19:59:18 2011 +0100
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.max.asm.ia32;
+
+import com.sun.max.asm.x86.*;
+import com.sun.max.lang.*;
+import com.sun.max.util.*;
+
+/**
+ */
+public enum IA32IndexRegister32 implements GeneralRegister<IA32IndexRegister32> {
+
+    EAX_INDEX,
+    ECX_INDEX,
+    EDX_INDEX,
+    EBX_INDEX,
+    // no ESP_INDEX!
+    EBP_INDEX,
+    ESI_INDEX,
+    EDI_INDEX;
+
+    public static final Enumerator<IA32IndexRegister32> ENUMERATOR = new Enumerator<IA32IndexRegister32>(IA32IndexRegister32.class);
+    public static IA32IndexRegister32 from(GeneralRegister generalRegister) {
+        int ordinal = generalRegister.id();
+        if (ordinal >= IA32GeneralRegister32.ESP.id()) {
+            ordinal--;
+        }
+        return ENUMERATOR.get(ordinal);
+    }
+
+    public WordWidth width() {
+        return WordWidth.BITS_32;
+    }
+
+    public int id() {
+        int ordinal = ordinal();
+        if (ordinal >= IA32GeneralRegister32.ESP.id()) {
+            ordinal++;
+        }
+        return ordinal;
+    }
+
+    public int value() {
+        return id();
+    }
+
+    public long asLong() {
+        return value();
+    }
+
+    public String externalValue() {
+        return IA32GeneralRegister32.from(this).externalValue();
+    }
+
+    public String disassembledValue() {
+        return IA32GeneralRegister32.from(this).disassembledValue();
+    }
+
+    public Enumerator<IA32IndexRegister32> enumerator() {
+        return ENUMERATOR;
+    }
+
+    public IA32IndexRegister32 exampleValue() {
+        return ESI_INDEX;
+    }
+}