Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/risc/field/SymbolicOperandField.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
parents | |
children | bc8527f3071c |
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/* * 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)); } }