Mercurial > hg > truffle
annotate graal/com.oracle.max.asmdis/src/com/sun/max/asm/gen/cisc/x86/X86AssemblerGenerator.java @ 3733:e233f5660da4
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author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Sat, 17 Dec 2011 19:59:18 +0100 |
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children | bc8527f3071c |
rev | line source |
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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.gen.cisc.x86; |
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24 |
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25 import java.io.*; |
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26 import java.util.*; |
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27 |
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28 import com.sun.max.*; |
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29 import com.sun.max.asm.*; |
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30 import com.sun.max.asm.gen.*; |
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31 import com.sun.max.io.*; |
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32 import com.sun.max.lang.*; |
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33 import com.sun.max.program.*; |
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34 import com.sun.max.program.option.*; |
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35 |
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36 /** |
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37 */ |
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38 public abstract class X86AssemblerGenerator<Template_Type extends X86Template> extends AssemblerGenerator<Template_Type> { |
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39 |
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40 private final Option<Boolean> support16BitAddressesOption = options.newBooleanOption("a16", false, "Enables 16 bit addressing."); |
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41 private final Option<Boolean> support16BitOffsetOption = options.newBooleanOption("d16", false, "Enables 16 bit offsets."); |
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42 |
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43 private final WordWidth addressWidth; |
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44 |
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45 protected X86AssemblerGenerator(Assembly<Template_Type> assembly, WordWidth addressWidth) { |
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46 super(assembly, true); |
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47 this.addressWidth = addressWidth; |
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48 } |
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49 |
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50 @Override |
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51 public X86Assembly<Template_Type> assembly() { |
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52 final Class<X86Assembly<Template_Type>> type = null; |
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53 return Utils.cast(type, super.assembly()); |
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54 } |
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55 |
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56 public WordWidth addressWidth() { |
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57 return addressWidth; |
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58 } |
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59 |
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60 @Override |
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61 protected void generate() { |
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62 if (support16BitAddressesOption.getValue() != null && support16BitAddressesOption.getValue()) { |
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63 X86Assembly.support16BitAddresses(); |
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64 } |
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65 if (support16BitOffsetOption.getValue() != null && support16BitOffsetOption.getValue()) { |
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66 X86Assembly.support16BitOffsets(); |
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67 } |
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68 super.generate(); |
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69 } |
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70 |
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71 protected X86Parameter getParameter(Template_Type template, Class parameterType) { |
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72 for (X86Parameter parameter : template.parameters()) { |
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73 if (parameter.type() == parameterType) { |
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74 return parameter; |
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75 } |
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76 } |
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77 throw ProgramError.unexpected("found no parameter of type: " + parameterType); |
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78 } |
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79 |
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80 private void printCallWithByteDisplacement(IndentWriter writer, Template_Type template, Class argumentType) { |
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81 final Template_Type modVariantTemplate = X86Assembly.getModVariantTemplate(assembly().templates(), template, argumentType); |
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82 final String subroutineName = makeSubroutine(modVariantTemplate); |
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83 writer.print(subroutineName + "("); |
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84 if (template.opcode2() != null) { |
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85 writer.print(OPCODE2_VARIABLE_NAME); |
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86 } else { |
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87 writer.print(OPCODE1_VARIABLE_NAME); |
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88 } |
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89 if (template.modRMGroupOpcode() != null) { |
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90 writer.print(", " + MODRM_GROUP_OPCODE_VARIABLE_NAME); |
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91 } |
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92 for (X86Parameter parameter : template.parameters()) { |
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93 if (parameter.type() == argumentType) { |
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94 writer.print(", (byte) 0"); |
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95 } |
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96 writer.print(", " + parameter.variableName()); |
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97 } |
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98 writer.println(");"); |
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99 } |
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100 |
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101 protected String asIdentifier(EnumerableArgument argument) { |
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102 return argument.getClass().getSimpleName() + "." + argument.name(); |
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103 } |
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104 |
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105 protected <Argument_Type extends Enum<Argument_Type> & EnumerableArgument<Argument_Type>> void printModVariant(IndentWriter writer, final Template_Type template, Argument_Type... arguments) { |
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106 final Class argumentType = arguments[0].getClass(); |
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107 final X86Parameter parameter = getParameter(template, argumentType); |
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108 writer.print("if ("); |
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109 String separator = ""; |
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110 for (EnumerableArgument argument : arguments) { |
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111 writer.print(separator + parameter.variableName() + " == " + asIdentifier(argument)); |
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112 separator = " || "; |
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113 } |
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114 writer.println(") {"); |
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115 writer.indent(); |
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116 printCallWithByteDisplacement(writer, template, argumentType); |
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117 writer.println("return;"); |
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118 writer.outdent(); |
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119 writer.println("}"); |
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120 } |
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121 |
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122 protected abstract void printModVariants(IndentWriter writer, Template_Type template); |
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123 |
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124 protected void printPrefixes(IndentWriter writer, Template_Type template) { |
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125 if (template.addressSizeAttribute() != addressWidth()) { |
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126 emitByte(writer, X86Opcode.ADDRESS_SIZE.byteValue()); |
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127 writer.println(" // address size prefix"); |
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128 } |
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129 if (template.operandSizeAttribute() == WordWidth.BITS_16) { |
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130 emitByte(writer, X86Opcode.OPERAND_SIZE.byteValue()); |
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131 writer.println(" // operand size prefix"); |
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132 } |
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133 if (template.instructionSelectionPrefix() != null) { |
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134 emitByte(writer, template.instructionSelectionPrefix().byteValue()); |
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135 writer.println(" // instruction selection prefix"); |
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136 } |
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137 } |
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138 |
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139 private void printOpcode(IndentWriter writer, Template_Type template, String opcodeVarName, final ParameterPlace parameterPlace32, ParameterPlace parameterPlace64) { |
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140 String comment = ""; |
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141 String opcodeVariableName = opcodeVarName; |
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142 for (X86Parameter parameter : template.parameters()) { |
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143 if (parameter.place() == parameterPlace32) { |
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144 opcodeVariableName += " + " + parameter.valueString(); |
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145 comment = " // " + parameterPlace32.name().toLowerCase(); |
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146 } else if (parameter.place() == parameterPlace64) { |
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147 opcodeVariableName += " + (" + parameter.valueString() + "& 7)"; |
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148 comment = " // " + parameterPlace64.name().toLowerCase(); |
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149 } |
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150 } |
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151 if (comment.length() == 0) { |
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152 emitByte(writer, opcodeVariableName); |
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153 writer.println(); |
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154 } else { |
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155 emitByte(writer, "(byte) (" + opcodeVariableName + ")"); |
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156 writer.println(comment); |
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157 } |
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158 } |
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159 |
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160 private static final String MODRM_BYTE_VARIABLE_NAME = "modRMByte"; |
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161 |
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162 private void printModRMByte(IndentWriter writer, Template_Type template) { |
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163 writer.print("byte " + MODRM_BYTE_VARIABLE_NAME + " = (byte) ((" + template.modCase().ordinal() + " << " + X86Field.MOD.shift() + ")"); |
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164 if (template.modRMGroupOpcode() != null) { |
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165 writer.print(" | (" + MODRM_GROUP_OPCODE_VARIABLE_NAME + " << " + X86Field.REG.shift() + ")"); |
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166 } |
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167 writer.print("); // mod field"); |
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168 if (template.modRMGroupOpcode() != null) { |
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169 writer.print(", group opcode in reg field"); |
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170 } |
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171 writer.println(); |
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172 switch (template.rmCase()) { |
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173 case SIB: |
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174 case SWORD: |
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175 case SDWORD: { |
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176 writer.println(MODRM_BYTE_VARIABLE_NAME + " |= " + template.rmCase().value() + " << " + X86Field.RM.shift() + "; // rm field"); |
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177 break; |
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178 } |
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179 default: |
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180 break; |
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181 } |
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182 for (X86Parameter parameter : template.parameters()) { |
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183 switch (parameter.place()) { |
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184 case MOD_REG: |
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185 case MOD_REG_REXR: { |
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186 writer.println(MODRM_BYTE_VARIABLE_NAME + " |= (" + parameter.valueString() + " & 7) << " + X86Field.REG.shift() + "; // reg field"); |
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187 break; |
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188 } |
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189 case MOD_RM: |
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190 case MOD_RM_REXB: { |
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191 writer.println(MODRM_BYTE_VARIABLE_NAME + " |= (" + parameter.valueString() + " & 7) << " + X86Field.RM.shift() + "; // rm field"); |
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192 break; |
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193 } |
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194 default: |
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195 break; |
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196 } |
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197 } |
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198 emitByte(writer, MODRM_BYTE_VARIABLE_NAME); |
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199 writer.println(); |
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200 } |
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201 |
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202 private static final String SIB_BYTE_NAME = "sibByte"; |
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203 |
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204 private void printSibByte(IndentWriter writer, Template_Type template) { |
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205 writer.print("byte " + SIB_BYTE_NAME + " = "); |
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206 if (template.sibBaseCase() == X86TemplateContext.SibBaseCase.SPECIAL) { |
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207 writer.println("(byte) (5 << " + X86Field.BASE.shift() + "); // base field"); |
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208 } else { |
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209 writer.println("(byte) 0;"); |
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|
210 } |
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|
211 for (X86Parameter parameter : template.parameters()) { |
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|
212 switch (parameter.place()) { |
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|
213 case SIB_BASE: |
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|
214 case SIB_BASE_REXB: |
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215 writer.println(SIB_BYTE_NAME + " |= (" + parameter.valueString() + " & 7) << " + X86Field.BASE.shift() + "; // base field"); |
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216 break; |
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|
217 case SIB_INDEX: |
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218 case SIB_INDEX_REXX: |
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|
219 writer.println(SIB_BYTE_NAME + " |= (" + parameter.valueString() + " & 7) << " + X86Field.INDEX.shift() + "; // index field"); |
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|
220 break; |
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221 case SIB_SCALE: |
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|
222 writer.println(SIB_BYTE_NAME + " |= " + parameter.valueString() + " << " + X86Field.SCALE.shift() + "; // scale field"); |
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|
223 break; |
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224 default: |
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|
225 break; |
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|
226 } |
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|
227 } |
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|
228 emitByte(writer, SIB_BYTE_NAME); |
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|
229 writer.println(); |
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|
230 } |
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|
231 |
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diff
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|
232 protected <Argument_Type extends Enum<Argument_Type> & EnumerableArgument<Argument_Type>> void printSibVariant(IndentWriter writer, Template_Type template, Argument_Type... arguments) { |
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|
233 final Class argumentType = arguments[0].getClass(); |
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|
234 final X86Parameter parameter = getParameter(template, argumentType); |
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|
235 writer.print("if ("); |
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diff
changeset
|
236 String separator = ""; |
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|
237 for (EnumerableArgument argument : arguments) { |
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|
238 writer.print(separator + parameter.variableName() + " == " + asIdentifier(argument)); |
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diff
changeset
|
239 separator = " || "; |
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|
240 } |
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diff
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|
241 writer.println(") {"); |
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diff
changeset
|
242 writer.indent(); |
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diff
changeset
|
243 emitByte(writer, (byte) 0x24); |
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244 writer.println(" // SIB byte"); |
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245 writer.outdent(); |
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246 writer.println("}"); |
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247 } |
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248 |
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249 protected abstract void printSibVariants(IndentWriter writer, Template_Type template); |
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250 |
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251 private void printImmediateParameter(IndentWriter writer, X86NumericalParameter parameter) { |
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252 if (parameter.width() == WordWidth.BITS_8) { |
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253 emitByte(writer, parameter.variableName()); |
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254 writer.println(" // appended"); |
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255 } else { |
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256 writer.println("// appended:"); |
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257 for (int i = 0; i < parameter.width().numberOfBytes; i++) { |
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258 if (i > 0) { |
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259 writer.println(parameter.variableName() + " >>= 8;"); |
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260 } |
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261 emitByte(writer, "(byte) (" + parameter.variableName() + " & 0xff)"); |
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262 writer.println(); |
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263 } |
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264 } |
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265 } |
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266 |
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267 private void printAppendedEnumerableParameter(IndentWriter writer, X86EnumerableParameter parameter) { |
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268 emitByte(writer, "(byte) " + parameter.variableName() + ".value()"); |
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269 writer.println(" // appended"); |
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270 } |
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271 |
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272 private void printAppendedParameter(IndentWriter writer, Template_Type template) { |
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273 for (X86Parameter parameter : template.parameters()) { |
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274 if (parameter.place() == ParameterPlace.APPEND) { |
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275 if (parameter instanceof X86NumericalParameter) { |
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276 printImmediateParameter(writer, (X86NumericalParameter) parameter); |
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277 } else if (parameter instanceof X86EnumerableParameter) { |
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278 printAppendedEnumerableParameter(writer, (X86EnumerableParameter) parameter); |
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279 } else { |
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280 throw ProgramError.unexpected("appended parameter of unexpected type: " + parameter); |
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281 } |
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282 } |
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283 } |
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284 } |
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285 |
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286 private int subroutineSerial; |
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287 |
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288 private String createSubroutineName() { |
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289 ++subroutineSerial; |
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290 String number = Integer.toString(subroutineSerial); |
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291 while (number.length() < 4) { |
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292 number = "0" + number; |
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293 } |
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294 return "assemble" + number; |
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295 } |
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296 |
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297 private Map<String, String> subroutineToName = new HashMap<String, String>(); |
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298 |
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299 private static final String OPCODE1_VARIABLE_NAME = "opcode1"; |
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300 private static final String OPCODE2_VARIABLE_NAME = "opcode2"; |
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301 private static final String MODRM_GROUP_OPCODE_VARIABLE_NAME = "modRmOpcode"; |
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302 |
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303 private void printSubroutine(IndentWriter writer, Template_Type template) { |
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304 writer.print("(byte "); |
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305 if (template.opcode2() != null) { |
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306 writer.print(OPCODE2_VARIABLE_NAME); |
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307 } else { |
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308 writer.print(OPCODE1_VARIABLE_NAME); |
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309 } |
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310 if (template.modRMGroupOpcode() != null) { |
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311 writer.print(", byte " + MODRM_GROUP_OPCODE_VARIABLE_NAME); |
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312 } |
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313 writer.print(formatParameterList(", ", template.parameters(), false)); |
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314 writer.println(") {"); |
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|
315 writer.indent(); |
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|
316 writer.indent(); |
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|
317 printModVariants(writer, template); |
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318 printPrefixes(writer, template); |
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319 if (template.opcode2() != null) { |
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|
320 emitByte(writer, "(byte) (" + Bytes.toHexLiteral(template.opcode1().byteValue()) + ")"); |
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321 writer.println(" // " + OPCODE1_VARIABLE_NAME); |
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|
322 printOpcode(writer, template, OPCODE2_VARIABLE_NAME, ParameterPlace.OPCODE2, ParameterPlace.OPCODE2_REXB); |
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|
323 } else { |
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|
324 printOpcode(writer, template, OPCODE1_VARIABLE_NAME, ParameterPlace.OPCODE1, ParameterPlace.OPCODE1_REXB); |
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|
325 } |
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|
326 if (template.hasModRMByte()) { |
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|
327 printModRMByte(writer, template); |
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|
328 if (template.hasSibByte()) { |
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|
329 printSibByte(writer, template); |
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|
330 } else { |
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|
331 printSibVariants(writer, template); |
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|
332 } |
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|
333 } |
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|
334 printAppendedParameter(writer, template); |
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|
335 writer.outdent(); |
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|
336 writer.println("}"); |
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|
337 writer.outdent(); |
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|
338 } |
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|
339 |
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|
340 private String makeSubroutine(Template_Type template) { |
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|
341 final StringWriter stringWriter = new StringWriter(); |
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|
342 printSubroutine(new IndentWriter(new PrintWriter(stringWriter)), template); |
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|
343 final String subroutine = stringWriter.toString(); |
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|
344 String name = subroutineToName.get(subroutine); |
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|
345 if (name == null) { |
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|
346 name = createSubroutineName(); |
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|
347 subroutineToName.put(subroutine, name); |
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|
348 } |
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|
349 return name; |
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diff
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|
350 } |
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|
351 |
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diff
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|
352 @Override |
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parents:
diff
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|
353 protected int printMethod(IndentWriter writer, Template_Type template) { |
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|
354 final int startLineCount = writer.lineCount(); |
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diff
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|
355 writer.print("public void "); |
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diff
changeset
|
356 writer.print(template.assemblerMethodName() + "("); |
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diff
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|
357 writer.print(formatParameterList("", template.parameters(), false)); |
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diff
changeset
|
358 writer.println(") {"); |
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diff
changeset
|
359 writer.indent(); |
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diff
changeset
|
360 final String subroutineName = makeSubroutine(template); |
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diff
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|
361 writer.print(subroutineName + "("); |
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changeset
|
362 if (template.opcode2() != null) { |
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diff
changeset
|
363 writer.print("(byte) " + Bytes.toHexLiteral(template.opcode2().byteValue())); |
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parents:
diff
changeset
|
364 } else { |
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parents:
diff
changeset
|
365 writer.print("(byte) " + Bytes.toHexLiteral(template.opcode1().byteValue())); |
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diff
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|
366 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
367 if (template.modRMGroupOpcode() != null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
368 writer.print(", (byte) " + Bytes.toHexLiteral(template.modRMGroupOpcode().byteValue())); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
369 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
370 for (X86Parameter parameter : template.parameters()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
371 writer.print(", " + parameter.variableName()); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
372 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
373 writer.println(");"); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
374 writer.outdent(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
375 writer.println("}"); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
376 return writer.lineCount() - startLineCount; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
377 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
378 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
379 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
380 protected int printSubroutines(IndentWriter writer) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
381 final Set<String> subroutineSet = subroutineToName.keySet(); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
382 final String[] subroutines = subroutineSet.toArray(new String[subroutineSet.size()]); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
383 for (int i = 0; i < subroutines.length; i++) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
384 subroutines[i] = subroutineToName.get(subroutines[i]) + subroutines[i]; |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
385 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
386 java.util.Arrays.sort(subroutines); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
387 for (String subroutine : subroutines) { |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
388 writer.print("private void " + subroutine); |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
389 writer.println(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
390 } |
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Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
391 return subroutines.length; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
392 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
393 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
394 private boolean parametersMatching(Template_Type candidate, Template_Type original) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
395 if (candidate.parameters().size() != original.parameters().size()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
396 return false; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
397 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
398 for (int i = 0; i < candidate.parameters().size(); i++) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
399 if (i == original.labelParameterIndex()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
400 assert candidate.parameters().get(i).getClass() == X86OffsetParameter.class || candidate.parameters().get(i).getClass() == X86AddressParameter.class; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
401 assert candidate.parameters().get(i).getClass() == original.parameters().get(i).getClass(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
402 } else if (candidate.parameters().get(i).type() != original.parameters().get(i).type()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
403 return false; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
404 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
405 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
406 return true; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
407 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
408 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
409 private final class LabelWidthCase { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
410 final WordWidth width; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
411 final Template_Type template; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
412 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
413 private LabelWidthCase(WordWidth width, Template_Type template) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
414 this.width = width; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
415 this.template = template; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
416 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
417 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
418 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
419 private String getValidSizesMaskExpression(List<LabelWidthCase> labelWidthCases) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
420 final Iterator<LabelWidthCase> iterator = labelWidthCases.iterator(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
421 String mask = String.valueOf(iterator.next().width.numberOfBytes); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
422 while (iterator.hasNext()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
423 mask += " | " + iterator.next().width.numberOfBytes; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
424 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
425 return mask; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
426 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
427 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
428 private List<LabelWidthCase> getRelatedLabelTemplatesByWidth(Template_Type template) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
429 final List<LabelWidthCase> array = Utils.newArrayAsList(WordWidth.VALUES.size()); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
430 for (Template_Type t : labelTemplates()) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
431 if (t.assemblerMethodName().equals(template.assemblerMethodName()) && t.labelParameterIndex() == template.labelParameterIndex() && parametersMatching(t, template)) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
432 final X86NumericalParameter numericalParameter = (X86NumericalParameter) t.parameters().get(template.labelParameterIndex()); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
433 final WordWidth width = numericalParameter.width(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
434 array.set(width.ordinal(), new LabelWidthCase(width, t)); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
435 t.isLabelMethodWritten = true; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
436 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
437 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
438 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
439 // Report the found cases in the order of ascending width: |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
440 final List<LabelWidthCase> result = new LinkedList<LabelWidthCase>(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
441 for (int i = 0; i < array.size(); i++) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
442 final LabelWidthCase labelWidthCase = array.get(i); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
443 if (labelWidthCase != null) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
444 assert result.isEmpty() || labelWidthCase.width.greaterThan(Utils.last(result).width); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
445 result.add(labelWidthCase); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
446 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
447 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
448 assert result.size() > 0; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
449 return result; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
450 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
451 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
452 private void printOffsetLabelMethod(final IndentWriter indentWriter, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
453 Template_Type template, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
454 final List<Parameter> parameters, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
455 String assemblerClassName) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
456 final List<LabelWidthCase> labelWidthCases = getRelatedLabelTemplatesByWidth(template); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
457 final InstructionWithLabelSubclass labelInstructionSubclass = new InstructionWithLabelSubclass(template, InstructionWithOffset.class, ", " + getValidSizesMaskExpression(labelWidthCases)) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
458 @Override |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
459 public void printAssembleMethodBody(IndentWriter writer, Template t) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
460 if (labelWidthCases.size() == 1) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
461 final LabelWidthCase labelWidthCase = Utils.first(labelWidthCases); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
462 super.printAssembleMethodBody(writer, labelWidthCase.template); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
463 } else { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
464 writer.println("final int labelSize = labelSize();"); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
465 String prefix = ""; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
466 for (LabelWidthCase labelWidthCase : labelWidthCases) { |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
467 writer.println(prefix + "if (labelSize == " + labelWidthCase.width.numberOfBytes + ") {"); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
468 writer.indent(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
469 super.printAssembleMethodBody(writer, labelWidthCase.template); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
470 writer.outdent(); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
471 prefix = "} else "; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
472 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
473 writer.println(prefix + "{"); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
474 writer.println(" throw new " + AssemblyException.class.getSimpleName() + "(\"Unexpected label width: \" + labelSize);"); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
475 writer.println("}"); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
476 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
477 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
478 }; |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
479 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
480 printLabelMethodHelper(indentWriter, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
481 template, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
482 parameters, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
483 -1, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
484 assemblerClassName, |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
485 labelInstructionSubclass); |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
486 } |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
487 |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
|
488 private void printAddressLabelMethod( |
e233f5660da4
Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff
changeset
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489 final IndentWriter indentWriter, |
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490 final Template_Type template, |
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491 final List<Parameter> parameters, |
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492 String assemblerClassName) { |
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493 final InstructionWithLabelSubclass labelInstructionSubclass = new InstructionWithLabelSubclass(template, InstructionWithAddress.class, ""); |
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494 printLabelMethodHelper(indentWriter, |
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495 template, |
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496 parameters, |
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497 -1, |
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498 assemblerClassName, |
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499 labelInstructionSubclass); |
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500 } |
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501 |
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502 @Override |
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503 protected boolean omitLabelTemplate(Template_Type labelTemplate) { |
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504 return labelTemplate.isLabelMethodWritten; |
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505 } |
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506 |
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507 @Override |
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508 protected void printLabelMethod(IndentWriter writer, Template_Type labelTemplate, String assemblerClassName) { |
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509 if (labelTemplate.addressSizeAttribute() == addressWidth()) { |
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510 if (!labelTemplate.isLabelMethodWritten) { |
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511 labelTemplate.isLabelMethodWritten = true; |
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512 final List<Parameter> parameters = getParameters(labelTemplate, true); |
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513 final X86Parameter parameter = labelTemplate.parameters().get(labelTemplate.labelParameterIndex()); |
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514 if (parameter instanceof X86OffsetParameter) { |
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515 printOffsetLabelMethod(writer, labelTemplate, parameters, assemblerClassName); |
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516 } else { |
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517 printAddressLabelMethod(writer, labelTemplate, parameters, assemblerClassName); |
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518 } |
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519 } |
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520 } |
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521 } |
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522 |
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523 public static byte basicRexValue(X86Template template) { |
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524 if (template.operandSizeAttribute() == WordWidth.BITS_64 && template.instructionDescription().defaultOperandSize() != WordWidth.BITS_64) { |
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525 return (byte) (X86Opcode.REX_MIN.ordinal() + (1 << X86Field.REX_W_BIT_INDEX)); |
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526 } |
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527 return (byte) X86Opcode.REX_MIN.ordinal(); |
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528 } |
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529 } |