Mercurial > hg > truffle
view graal/com.oracle.max.asmdis/src/com/sun/max/asm/ia32/IA32IndexRegister32.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 IA32IndexRegister32 implements GeneralRegister<IA32IndexRegister32> { EAX_INDEX, ECX_INDEX, EDX_INDEX, EBX_INDEX, // no ESP_INDEX! EBP_INDEX, ESI_INDEX, EDI_INDEX; public static final Enumerator<IA32IndexRegister32> ENUMERATOR = new Enumerator<>(IA32IndexRegister32.class); public static IA32IndexRegister32 from(GeneralRegister generalRegister) { int ordinal = generalRegister.id(); if (ordinal >= IA32GeneralRegister32.ESP.id()) { ordinal--; } return ENUMERATOR.get(ordinal); } public WordWidth width() { return WordWidth.BITS_32; } public int id() { int ordinal = ordinal(); if (ordinal >= IA32GeneralRegister32.ESP.id()) { ordinal++; } return ordinal; } public int value() { return id(); } public long asLong() { return value(); } public String externalValue() { return IA32GeneralRegister32.from(this).externalValue(); } public String disassembledValue() { return IA32GeneralRegister32.from(this).disassembledValue(); } public Enumerator<IA32IndexRegister32> enumerator() { return ENUMERATOR; } public IA32IndexRegister32 exampleValue() { return ESI_INDEX; } }