--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/risc/field/SymbolicOperandField.java	Sat Dec 17 19:59:18 2011 +0100
@@ -0,0 +1,123 @@
+/*
+ * 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.risc.field;
+
+import java.util.*;
+
+import com.sun.max.*;
+import com.sun.max.asm.*;
+import com.sun.max.asm.gen.*;
+import com.sun.max.asm.gen.risc.*;
+import com.sun.max.asm.gen.risc.bitRange.*;
+import com.sun.max.util.*;
+
+/**
+ */
+public class SymbolicOperandField<Argument_Type extends SymbolicArgument> extends OperandField<Argument_Type> implements WrappableSpecification {
+
+    private final Symbolizer<Argument_Type> symbolizer;
+
+    public SymbolicOperandField(BitRange bitRange, Symbolizer<Argument_Type> symbolizer) {
+        super(bitRange);
+        assert symbolizer != null;
+        this.symbolizer = symbolizer;
+    }
+
+    public static <Argument_Type extends SymbolicArgument> SymbolicOperandField<Argument_Type> createAscending(Symbolizer<Argument_Type> symbolizer, int... bits) {
+        final BitRange bitRange = BitRange.create(bits, BitRangeOrder.ASCENDING);
+        return new SymbolicOperandField<Argument_Type>(bitRange, symbolizer);
+    }
+
+    public static <Argument_Type extends SymbolicArgument> SymbolicOperandField<Argument_Type> createDescending(String variableName,
+                    final Symbolizer<Argument_Type> symbolizer, int... bits) {
+        final BitRange bitRange = BitRange.create(bits, BitRangeOrder.DESCENDING);
+        final SymbolicOperandField<Argument_Type> field = new SymbolicOperandField<Argument_Type>(bitRange, symbolizer);
+        if (variableName != null) {
+            field.setVariableName(variableName);
+        }
+        return field;
+    }
+
+    public static <Argument_Type extends SymbolicArgument> SymbolicOperandField<Argument_Type> createDescending(Symbolizer<Argument_Type> symbolizer, int... bits) {
+        return createDescending(null, symbolizer, bits);
+    }
+
+    public RiscConstant constant(Argument_Type argument) {
+        return new RiscConstant(new ConstantField(name(), bitRange()), argument);
+    }
+
+    @Override
+    public Class type() {
+        return symbolizer.type();
+    }
+
+    public String valueString() {
+        if (boundTo() != null) {
+            return boundTo().valueString();
+        }
+        return variableName() + ".value()";
+    }
+
+    public int assemble(Argument_Type argument) throws AssemblyException {
+        return bitRange().assembleUncheckedUnsignedInt(argument.value());
+    }
+
+    @Override
+    public Argument_Type disassemble(int instruction) {
+        return symbolizer.fromValue(extract(instruction));
+    }
+
+    @Override
+    public SymbolicOperandField<Argument_Type> setVariableName(String name) {
+        super.setVariableName(name);
+        return this;
+    }
+
+    public ArgumentRange argumentRange() {
+        return null;
+    }
+
+    public Iterable<? extends Argument> getLegalTestArguments() {
+        return symbolizer;
+    }
+
+    public Iterable<? extends Argument> getIllegalTestArguments() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public SymbolicOperandField<Argument_Type> withExcludedExternalTestArguments(Argument... arguments) {
+        final Class<SymbolicOperandField<Argument_Type>> type = null;
+        return Utils.cast(type, super.withExcludedExternalTestArguments(arguments));
+    }
+
+    public TestArgumentExclusion excludeExternalTestArguments(Argument... arguments) {
+        return new TestArgumentExclusion(AssemblyTestComponent.EXTERNAL_ASSEMBLER, this, new HashSet<Argument>(Arrays.asList(arguments)));
+    }
+
+    @Override
+    public SymbolicOperandField<Argument_Type> bindTo(Expression expression) {
+        final Class<SymbolicOperandField<Argument_Type>> type = null;
+        return Utils.cast(type, super.bindTo(expression));
+    }
+}