Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/sparc/StateRegister.java @ 4213:e4cfa571d8c4
Do not emit stack-to-stack moves.
author | Christian Wimmer <Christian.Wimmer@Oracle.com> |
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date | Tue, 03 Jan 2012 18:47:27 -0800 |
parents | e233f5660da4 |
children |
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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.sparc; import com.sun.max.asm.*; import com.sun.max.util.*; /** * The argument to the Write State Register and Read State Register instructions. */ public class StateRegister extends AbstractSymbolicArgument { StateRegister(int value) { super(value); } public static class Writable extends StateRegister { Writable(int value) { super(value); } } public static final class ASR extends Writable { private ASR(int value) { super(value); } } /** * @return true if this is the Y register or an Ancillary State register */ public boolean isYorASR() { return this == Y || value() >= 16 && value() <= 31; } public static final Writable Y = new Writable(0); public static final Writable CCR = new Writable(2); public static final Writable ASI = new Writable(3); public static final StateRegister TICK = new StateRegister(4); public static final StateRegister PC = new StateRegister(5); public static final Writable FPRS = new Writable(6); public static final ASR ASR16 = new ASR(16); public static final ASR ASR17 = new ASR(17); public static final ASR ASR18 = new ASR(18); public static final ASR ASR19 = new ASR(19); public static final ASR ASR20 = new ASR(20); public static final ASR ASR21 = new ASR(21); public static final ASR ASR22 = new ASR(22); public static final ASR ASR23 = new ASR(23); public static final ASR ASR24 = new ASR(24); public static final ASR ASR25 = new ASR(25); public static final ASR ASR26 = new ASR(26); public static final ASR ASR27 = new ASR(27); public static final ASR ASR28 = new ASR(28); public static final ASR ASR29 = new ASR(29); public static final ASR ASR30 = new ASR(30); public static final ASR ASR31 = new ASR(31); public static final Symbolizer<StateRegister> SYMBOLIZER = Symbolizer.Static.initialize(StateRegister.class); public static final Symbolizer<Writable> WRITE_ONLY_SYMBOLIZER = Symbolizer.Static.initialize(StateRegister.class, Writable.class); }