Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/risc/field/OptionField.java @ 3734:b55f2b8f83fd
Remove deprecated files.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 20:34:58 +0100 |
parents | e233f5660da4 |
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.asm.*; import com.sun.max.asm.gen.risc.*; import com.sun.max.asm.gen.risc.bitRange.*; import com.sun.max.program.*; /** * An OptionField is a field whose value is specified as an optional part of the assembler * mnemonic or assembler method name. The field has a default value if it is not specified. * An example of an optional field is the {@link com.sun.max.asm.gen.risc.sparc.SPARCFields#_p_option * predict bit} for the SPARC Branch on Equal with Prediction instruction: * * bge // predict that branch will be taken (default) * bge,pt // predict that branch will be taken * bge,pn // predict that branch will not be taken * * The definition of this field therefore has three {@link Option options}. */ public class OptionField extends RiscField { public OptionField(BitRange bitRange) { super(bitRange); } public static OptionField createAscending(int... bits) { final BitRange bitRange = BitRange.create(bits, BitRangeOrder.ASCENDING); return new OptionField(bitRange); } public static OptionField createDescending(int... bits) { final BitRange bitRange = BitRange.create(bits, BitRangeOrder.DESCENDING); return new OptionField(bitRange); } public RiscConstant constant(int value) { return new RiscConstant(this, value); } protected Option defaultOption; public Option defaultOption() { return defaultOption; } protected List<Option> options = new LinkedList<Option>(); public Iterable<Option> options() { return options; } @Override public OptionField clone() { final OptionField result = (OptionField) super.clone(); result.options = new LinkedList<Option>(options); return result; } /** * Creates a copy of this field that can take an additional value. * * @param name addition to the assembler method's name used to specify the option value * @param value the option value * @param externalName addition to the external assembler syntax used to specify the option value * @return the extended field */ public OptionField withOption(String name, int value, String externalName) { final OptionField result = clone(); final Option newOption = new Option(name, value, externalName, result); for (Option option : options) { if (option.equals(newOption)) { throw ProgramError.unexpected("duplicate option: " + option); } } result.options.add(newOption); if (name.equals("")) { result.defaultOption = newOption; } return result; } /** * Creates a copy of this field that can take an additional value. * * @param name addition to the assembler method's name used to specify the option value * @param value the option value * @return the extended field */ public OptionField withOption(String name, int value) { return withOption(name, value, name); } /** * Creates a copy of this field that can take an additional value. * * @param value the option value * @return the extended field */ public OptionField withOption(int value) { return withOption("", value); } /** * Creates a copy of this field that can take an additional value. * * @param name addition to the assembler method's name used to specify the option value * @param argument the option value represented as a symbol * @return the extended field */ public OptionField withOption(String name, SymbolicArgument argument) { if (argument instanceof ExternalMnemonicSuffixArgument) { return withOption(name, argument.value(), argument.externalValue()); } return withOption(name, argument.value()); } }