--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/cisc/x86/X86EnumerableParameter.java	Sat Dec 17 19:59:18 2011 +0100
@@ -0,0 +1,107 @@
+/*
+ * 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.gen.cisc.x86;
+
+import java.util.*;
+
+import com.sun.max.asm.*;
+import com.sun.max.asm.gen.*;
+import com.sun.max.program.*;
+import com.sun.max.util.*;
+
+/**
+ */
+public class X86EnumerableParameter<EnumerableArgument_Type extends Enum<EnumerableArgument_Type> & EnumerableArgument<EnumerableArgument_Type>> extends X86Parameter implements EnumerableParameter {
+
+    private final Enumerator<EnumerableArgument_Type> enumerator;
+    private final Argument exampleArgument;
+
+    public X86EnumerableParameter(X86Operand.Designation designation, ParameterPlace place, Enumerator<EnumerableArgument_Type> enumerator) {
+        super(designation, place);
+        this.enumerator = enumerator;
+        final Iterator<EnumerableArgument_Type> it = enumerator.iterator();
+        exampleArgument = it.hasNext() ? it.next().exampleValue() : null;
+        switch (place) {
+            case MOD_REG:
+            case MOD_REG_REXR:
+            case MOD_RM:
+            case MOD_RM_REXB:
+                setVariableName(designation.name().toLowerCase());
+                break;
+            case SIB_SCALE:
+                setVariableName("scale");
+                break;
+            case SIB_INDEX:
+            case SIB_INDEX_REXX:
+                setVariableName("index");
+                break;
+            case SIB_BASE:
+            case SIB_BASE_REXB:
+                setVariableName("base");
+                break;
+            case APPEND:
+                setVariableName(enumerator.type().getSimpleName().toLowerCase());
+                break;
+            case OPCODE1:
+            case OPCODE1_REXB:
+            case OPCODE2_REXB:
+                setVariableName("register");
+                break;
+            case OPCODE2:
+                setVariableName("st_i");
+                break;
+            default:
+                throw ProgramError.unexpected();
+        }
+    }
+
+    public Enumerator<EnumerableArgument_Type> enumerator() {
+        return enumerator;
+    }
+
+    public Class type() {
+        return enumerator.type();
+    }
+
+    public String valueString() {
+        return variableName() + ".value()";
+    }
+
+    public Iterable<EnumerableArgument_Type> getLegalTestArguments() {
+        return enumerator;
+    }
+
+    public Iterable<? extends Argument> getIllegalTestArguments() {
+        return Collections.emptyList();
+    }
+
+    public Argument getExampleArgument() {
+        return exampleArgument;
+    }
+
+    @Override
+    public String toString() {
+        return type().getSimpleName();
+    }
+
+}