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1 /*
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2 * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.asm.sparc;
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26
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27 import sun.jvm.hotspot.asm.*;
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28 import java.io.*;
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29 import java.util.*;
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30
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31 // Please refer to "The SPARC Architecture Manual - Version 8"
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32
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33 public class SPARCV8Disassembler extends SPARCDisassembler {
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34
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35 public SPARCV8Disassembler(long startPc, byte[] code, SPARCInstructionFactory factory) {
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36 super(startPc, code, factory);
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37 }
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38
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39 public SPARCV8Disassembler(long startPc, byte[] code) {
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40 this(startPc, code, new SPARCInstructionFactoryImpl());
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41 }
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42
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43 // decoders for format 2 instructions
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44 private static InstructionDecoder format2Decoders[] = {
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45 new UnimpDecoder(),
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46 illegalDecoder,
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47 new IntegerBranchDecoder(),
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48 illegalDecoder,
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49 new SethiDecoder(),
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50 illegalDecoder,
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51 new FloatBranchDecoder(),
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52 new CoprocessorBranchDecoder()
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53 };
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54
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55 protected InstructionDecoder getFormat2Decoder(int op2) {
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56 return format2Decoders[op2];
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57 }
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58
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59 // op3 decoder table for op=3 (FORMAT_3) instructions - (memory instructions)
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60 // Appendix F - Opcodes and Condition Codes - Page 229 - Table F-4
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61
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62 private static final InstructionDecoder format3Decoders[][] = {
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63 {
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64 new LoadDecoder(LD, "ld", RTLDT_UNSIGNED_WORD), new AlternateSpaceLoadDecoder(LDA, "lda", RTLDT_UNSIGNED_WORD),
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65 new LoadDecoder(LDF,"ld", RTLDT_FL_SINGLE), new SpecialLoadDecoder(LDC,"ld", SPARCSpecialRegisters.CREG)
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66 },
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67 {
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68 new LoadDecoder(LDUB, "ldub", RTLDT_UNSIGNED_BYTE), new AlternateSpaceLoadDecoder(LDUBA, "lduba", RTLDT_UNSIGNED_BYTE),
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69 new SpecialLoadDecoder(LDFSR, "ld", SPARCSpecialRegisters.FSR), new SpecialLoadDecoder(LDCSR, "ld", SPARCSpecialRegisters.CSR)
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70 },
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71 {
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72 new LoadDecoder(LDUH, "lduh", RTLDT_UNSIGNED_HALF), new AlternateSpaceLoadDecoder(LDUHA, "lduha", RTLDT_UNSIGNED_HALF),
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73 illegalDecoder, illegalDecoder
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74 },
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75 {
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76 new LoadDecoder(LDD, "ldd", RTLDT_UNSIGNED_DWORD), new AlternateSpaceLoadDecoder(LDDA, "ldda", RTLDT_UNSIGNED_DWORD),
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77 new LoadDecoder(LDDF, "ldd", RTLDT_FL_DOUBLE), new SpecialLoadDecoder(LDDC, "ldd", SPARCSpecialRegisters.CREG)
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78 },
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79 {
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80 new StoreDecoder(ST, "st", RTLDT_UNSIGNED_WORD), new AlternateSpaceStoreDecoder(STA, "sta", RTLDT_UNSIGNED_WORD),
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81 new StoreDecoder(STF, "st", RTLDT_FL_SINGLE), new SpecialStoreDecoder(STC, "st", SPARCSpecialRegisters.CREG)
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82 },
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83 {
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84 new StoreDecoder(STB, "stb", RTLDT_UNSIGNED_BYTE), new AlternateSpaceStoreDecoder(STBA, "stba", RTLDT_UNSIGNED_BYTE),
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85 new SpecialStoreDecoder(STFSR, "st", SPARCSpecialRegisters.FSR), new SpecialStoreDecoder(STCSR, "st", SPARCSpecialRegisters.CSR),
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86 },
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87 {
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88 new StoreDecoder(STH, "sth", RTLDT_UNSIGNED_HALF), new AlternateSpaceStoreDecoder(STHA, "stha", RTLDT_UNSIGNED_HALF),
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89 new SpecialStoreDecoder(STDFQ, "std", SPARCSpecialRegisters.FQ), new SpecialStoreDecoder(STDCQ, "std", SPARCSpecialRegisters.CQ),
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90 },
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91 {
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92 new StoreDecoder(STD, "std", RTLDT_UNSIGNED_DWORD), new AlternateSpaceStoreDecoder(STDA, "stda", RTLDT_UNSIGNED_DWORD),
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93 new StoreDecoder(STDF, "std", RTLDT_FL_DOUBLE), new SpecialStoreDecoder(STDC, "std", SPARCSpecialRegisters.CREG)
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94 },
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95 {
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96 illegalDecoder, illegalDecoder,
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97 illegalDecoder, illegalDecoder
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98 },
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99 {
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100 new LoadDecoder(LDSB, "ldsb", RTLDT_SIGNED_BYTE), new AlternateSpaceLoadDecoder(LDSBA, "ldsba", RTLDT_UNSIGNED_BYTE),
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101 illegalDecoder, illegalDecoder
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102 },
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103 {
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104 new LoadDecoder(LDSH, "ldsh", RTLDT_SIGNED_HALF), new AlternateSpaceLoadDecoder(LDSHA, "ldsha", RTLDT_UNSIGNED_HALF),
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105 illegalDecoder, illegalDecoder
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106 },
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107 {
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108 illegalDecoder, illegalDecoder,
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109 illegalDecoder, illegalDecoder
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110 },
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111 {
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112 illegalDecoder, illegalDecoder,
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113 illegalDecoder, illegalDecoder
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114 },
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115 {
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116 new LdstubDecoder(LDSTUB, "ldstub", RTLDT_UNSIGNED_BYTE), new AlternateSpaceLdstubDecoder(LDSTUBA, "ldstuba", RTLDT_UNSIGNED_BYTE),
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117 illegalDecoder, illegalDecoder
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118 },
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119 {
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120 illegalDecoder, illegalDecoder,
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121 illegalDecoder, illegalDecoder
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122 },
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123 {
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124 new SwapDecoder(SWAP, "swap", RTLDT_UNSIGNED_WORD), new AlternateSpaceSwapDecoder(SWAPA, "swapa", RTLDT_UNSIGNED_WORD),
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125 illegalDecoder, illegalDecoder
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126 },
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127 };
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128
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129 protected InstructionDecoder getFormat3Decoder(int row, int column) {
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130 return format3Decoders[row][column];
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131 }
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132
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133 // op3 decoder table for op=2 (FORMAT_3A) instructions
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134 // Appendix F - Opcodes and Condition Codes - Page 228 - Table F-3
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135 protected static final InstructionDecoder format3ADecoders[][] = {
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136 {
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137 new ArithmeticDecoder(ADD, "add", RTLOP_ADD), new ArithmeticDecoder(ADDcc, "addcc", RTLOP_ADD),
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138 new ArithmeticDecoder(TADDcc, "taddcc", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.ASR)
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139 },
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140 {
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141 new LogicDecoder(AND, "and", RTLOP_AND), new LogicDecoder(ANDcc, "andcc", RTLOP_AND),
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142 new ArithmeticDecoder(TSUBcc, "tsubcc", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.PSR)
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143 },
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144 {
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145 new LogicDecoder(OR, "or", RTLOP_OR), new LogicDecoder(ORcc, "orcc", RTLOP_OR),
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146 new ArithmeticDecoder(TADDccTV, "taddcctv", RTLOP_ADD), new WriteDecoder(SPARCSpecialRegisters.WIM)
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147 },
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148 {
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149 new LogicDecoder(XOR, "xor", RTLOP_XOR), new LogicDecoder(XORcc, "xorcc", RTLOP_XOR),
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150 new ArithmeticDecoder(TSUBccTV, "tsubcctv", RTLOP_SUB), new WriteDecoder(SPARCSpecialRegisters.TBR)
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151 },
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152 {
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153 new ArithmeticDecoder(SUB, "sub", RTLOP_SUB), new ArithmeticDecoder(SUBcc, "subcc", RTLOP_SUB),
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154 new ArithmeticDecoder(MULScc, "mulscc", RTLOP_SMUL), new V8FPop1Decoder()
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155 },
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156 {
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157 new LogicDecoder(ANDN, "andn", RTLOP_NAND), new LogicDecoder(ANDNcc, "andncc", RTLOP_NAND),
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158 new ShiftDecoder(SLL, "sll", RTLOP_SLL), new V8FPop2Decoder()
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159 },
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160 {
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161 new LogicDecoder(ORN, "orn", RTLOP_NOR), new LogicDecoder(ORNcc, "orncc", RTLOP_NOR),
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162 new ShiftDecoder(SRL, "srl", RTLOP_SRL), new CoprocessorDecoder(CPop1)
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163 },
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164 {
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165 new LogicDecoder(XNOR, "xnor", RTLOP_XNOR), new LogicDecoder(XNORcc, "xnorcc", RTLOP_XNOR),
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166 new ShiftDecoder(SRA, "sra", RTLOP_SRA), new CoprocessorDecoder(CPop2)
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167 },
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168 {
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169 new ArithmeticDecoder(ADDX, "addx", RTLOP_ADDC), new ArithmeticDecoder(ADDXcc, "addxcc", RTLOP_ADDC),
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170 new ReadDecoder(SPARCSpecialRegisters.ASR), new JmplDecoder()
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171 },
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172 {
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173 illegalDecoder, illegalDecoder,
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174 new ReadDecoder(SPARCSpecialRegisters.PSR), new RettDecoder()
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175 },
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176 {
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177 new ArithmeticDecoder(UMUL, "umul", RTLOP_UMUL), new ArithmeticDecoder(UMULcc, "umulcc", RTLOP_UMUL),
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178 new ReadDecoder(SPARCSpecialRegisters.WIM), new TrapDecoder()
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179 },
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180 {
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181 new ArithmeticDecoder(SMUL, "smul", RTLOP_SMUL), new ArithmeticDecoder(SMULcc, "smulcc", RTLOP_SMUL),
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182 new ReadDecoder(SPARCSpecialRegisters.TBR), new FlushDecoder()
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183 },
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184 {
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185 new ArithmeticDecoder(SUBX, "subx", RTLOP_SUBC), new ArithmeticDecoder(SUBXcc, "subxcc", RTLOP_SUBC),
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186 illegalDecoder, new SaveDecoder()
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187 },
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188 {
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189 illegalDecoder, illegalDecoder,
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190 illegalDecoder, new RestoreDecoder()
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191 },
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192 {
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193 new ArithmeticDecoder(UDIV, "udiv", RTLOP_UDIV), new ArithmeticDecoder(UDIVcc, "udivcc", RTLOP_UDIV),
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194 illegalDecoder, illegalDecoder
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195 },
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196 {
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197 new ArithmeticDecoder(SDIV, "sdiv", RTLOP_SDIV), new ArithmeticDecoder(SDIVcc, "sdivcc", RTLOP_SDIV),
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198 illegalDecoder, illegalDecoder
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199 }
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200 };
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201
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202 protected InstructionDecoder getFormat3ADecoder(int row, int column) {
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203 return format3ADecoders[row][column];
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204 }
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205 }
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