Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/InstructionWithAddress.java @ 3733:e233f5660da4
Added Java files from Maxine project.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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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 } |