Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/ia32/IA32GeneralRegister8.java @ 4205:2af849af1723
moved graphbuilder into the graal.java project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 03 Jan 2012 18:22:10 +0100 |
parents | bc8527f3071c |
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.ia32; import com.sun.max.asm.x86.*; import com.sun.max.lang.*; import com.sun.max.util.*; /** */ public enum IA32GeneralRegister8 implements GeneralRegister<IA32GeneralRegister8> { // Note: keep the order such that 'value()' can rely on ordinals: AL, CL, DL, BL, AH, CH, DH, BH; public static final Enumerator<IA32GeneralRegister8> ENUMERATOR = new Enumerator<>(IA32GeneralRegister8.class); private static final IA32GeneralRegister8[] lowRegisters = {AL, CL, DL, BL}; public static IA32GeneralRegister8 lowFrom(GeneralRegister generalRegister) { return lowRegisters[generalRegister.id()]; } private static final IA32GeneralRegister8[] highRegisters = {AH, CH, DH, BH}; public static IA32GeneralRegister8 highFrom(GeneralRegister generalRegister) { return highRegisters[generalRegister.id()]; } public WordWidth width() { return WordWidth.BITS_8; } public int value() { return ordinal(); } public int id() { return ordinal() % 4; } public long asLong() { return value(); } public String externalValue() { return "%" + name().toLowerCase(); } public String disassembledValue() { return name().toLowerCase(); } public Enumerator<IA32GeneralRegister8> enumerator() { return ENUMERATOR; } public IA32GeneralRegister8 exampleValue() { return AL; } }