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annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/InstructionWithAddress.java @ 4281:62cb0e636094

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Copyright fixes
author Christian Wimmer <Christian.Wimmer@Oracle.com>
date Thu, 12 Jan 2012 13:48:27 -0800
parents e233f5660da4
children
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1 /*
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2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.max.asm;
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24
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25 import com.sun.max.program.*;
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26
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27 /**
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28 * An instruction that addresses some data with an absolute address.
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29 */
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30 public abstract class InstructionWithAddress extends InstructionWithLabel {
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31
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32 protected InstructionWithAddress(Assembler assembler, int startPosition, int endPosition, Label label) {
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33 super(assembler, startPosition, endPosition, label);
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34 assembler.addFixedSizeAssembledObject(this);
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35 }
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36
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37 public int addressAsInt() throws AssemblyException {
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38 final Assembler32 assembler = (Assembler32) assembler();
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39 switch (label().state()) {
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40 case BOUND: {
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41 return assembler.startAddress() + label().position();
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42 }
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43 case FIXED_32: {
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44 return assembler.address(label());
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45 }
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46 case FIXED_64: {
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47 throw ProgramError.unexpected("64-bit address requested for 32-bit assembler");
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48 }
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49 default: {
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50 throw new AssemblyException("unassigned label");
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51 }
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52 }
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53 }
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54
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55 public long addressAsLong() throws AssemblyException {
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56 final Assembler64 assembler = (Assembler64) assembler();
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57 switch (label().state()) {
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58 case BOUND: {
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59 return assembler.startAddress() + label().position();
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60 }
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61 case FIXED_64: {
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62 return assembler.address(label());
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63 }
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64 case FIXED_32: {
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65 throw ProgramError.unexpected("32-bit address requested for 64-bit assembler");
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66 }
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67 default: {
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68 throw new AssemblyException("unassigned label");
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69 }
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70 }
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71 }
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72 }