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annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/arm/AbstractARMAssembler.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
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24 package com.sun.max.asm.arm;
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25
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26 import com.sun.max.asm.*;
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27 import com.sun.max.lang.*;
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28
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29 /**
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30 */
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31 public abstract class AbstractARMAssembler extends BigEndianAssembler implements Assembler32 {
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32
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33 private int startAddress; // address of first instruction
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34
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35 public AbstractARMAssembler(int startAddress) {
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36 this.startAddress = startAddress;
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37 }
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38
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39 public AbstractARMAssembler() {
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40 }
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41
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42 @Override
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43 protected void emitPadding(int numberOfBytes) throws AssemblyException {
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44 if ((numberOfBytes % 4) != 0) {
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45 throw new AssemblyException("Cannot pad instruction stream with a number of bytes not divisble by 4");
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46 }
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47 for (int i = 0; i < numberOfBytes / 4; i++) {
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48 emitInt(0);
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49 }
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50 }
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51
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52 public int startAddress() {
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53 return startAddress;
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54 }
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55
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56 public void setStartAddress(int address) {
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57 startAddress = address;
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58 }
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59
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60 @Override
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61 public long baseAddress() {
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62 return startAddress;
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63 }
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64
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65 public void fixLabel(Label label, int address) {
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66 fixLabel32(label, address);
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67 }
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68
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69 public int address(Label label) throws AssemblyException {
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70 return address32(label);
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71 }
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72
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73 @Override
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74 public final ISA isa() {
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75 return ISA.ARM;
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76 }
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77
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78 @Override
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79 public WordWidth wordWidth() {
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80 return WordWidth.BITS_32;
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81 }
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82 }