--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.asmdis/src/com/sun/max/asm/ia32/IA32GeneralRegister8.java	Sat Dec 17 19:59:18 2011 +0100
@@ -0,0 +1,82 @@
+/*
+ * 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 IA32GeneralRegister8 implements GeneralRegister<IA32GeneralRegister8> {
+
+    // Note: keep the order such that 'value()' can rely on ordinals:
+
+    AL, CL, DL, BL, AH, CH, DH, BH;
+
+    public static final Enumerator<IA32GeneralRegister8> ENUMERATOR = new Enumerator<IA32GeneralRegister8>(IA32GeneralRegister8.class);
+
+    private static final IA32GeneralRegister8[] lowRegisters = {AL, CL, DL, BL};
+
+    public static IA32GeneralRegister8 lowFrom(GeneralRegister generalRegister) {
+        return lowRegisters[generalRegister.id()];
+    }
+
+    private static final IA32GeneralRegister8[] highRegisters = {AH, CH, DH, BH};
+
+    public static IA32GeneralRegister8 highFrom(GeneralRegister generalRegister) {
+        return highRegisters[generalRegister.id()];
+    }
+
+    public WordWidth width() {
+        return WordWidth.BITS_8;
+    }
+
+    public int value() {
+        return ordinal();
+    }
+
+    public int id() {
+        return ordinal() % 4;
+    }
+
+    public long asLong() {
+        return value();
+    }
+
+    public String externalValue() {
+        return "%" + name().toLowerCase();
+    }
+
+    public String disassembledValue() {
+        return name().toLowerCase();
+    }
+
+    public Enumerator<IA32GeneralRegister8> enumerator() {
+        return ENUMERATOR;
+    }
+
+    public IA32GeneralRegister8 exampleValue() {
+        return AL;
+    }
+}