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1 |
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2 """ |
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3 opcode module - potentially shared between dis and other modules which |
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4 operate on bytecodes (e.g. peephole optimizers). |
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5 """ |
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6 |
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7 __all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs", |
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8 "haslocal", "hascompare", "hasfree", "opname", "opmap", |
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9 "HAVE_ARGUMENT", "EXTENDED_ARG"] |
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10 |
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11 cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is', |
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12 'is not', 'exception match', 'BAD') |
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13 |
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14 hasconst = [] |
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15 hasname = [] |
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16 hasjrel = [] |
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17 hasjabs = [] |
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18 haslocal = [] |
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19 hascompare = [] |
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20 hasfree = [] |
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21 |
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22 opmap = {} |
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23 opname = [''] * 256 |
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24 for op in range(256): opname[op] = '<%r>' % (op,) |
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25 del op |
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26 |
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27 def def_op(name, op): |
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28 opname[op] = name |
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29 opmap[name] = op |
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30 |
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31 def name_op(name, op): |
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32 def_op(name, op) |
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33 hasname.append(op) |
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34 |
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35 def jrel_op(name, op): |
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36 def_op(name, op) |
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37 hasjrel.append(op) |
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38 |
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39 def jabs_op(name, op): |
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40 def_op(name, op) |
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41 hasjabs.append(op) |
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42 |
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43 # Instruction opcodes for compiled code |
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44 # Blank lines correspond to available opcodes |
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45 |
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46 def_op('STOP_CODE', 0) |
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47 def_op('POP_TOP', 1) |
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48 def_op('ROT_TWO', 2) |
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49 def_op('ROT_THREE', 3) |
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50 def_op('DUP_TOP', 4) |
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51 def_op('ROT_FOUR', 5) |
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52 |
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53 def_op('NOP', 9) |
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54 def_op('UNARY_POSITIVE', 10) |
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55 def_op('UNARY_NEGATIVE', 11) |
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56 def_op('UNARY_NOT', 12) |
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57 def_op('UNARY_CONVERT', 13) |
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58 |
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59 def_op('UNARY_INVERT', 15) |
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60 |
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61 def_op('LIST_APPEND', 18) |
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62 def_op('BINARY_POWER', 19) |
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63 def_op('BINARY_MULTIPLY', 20) |
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64 def_op('BINARY_DIVIDE', 21) |
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65 def_op('BINARY_MODULO', 22) |
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66 def_op('BINARY_ADD', 23) |
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67 def_op('BINARY_SUBTRACT', 24) |
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68 def_op('BINARY_SUBSCR', 25) |
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69 def_op('BINARY_FLOOR_DIVIDE', 26) |
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70 def_op('BINARY_TRUE_DIVIDE', 27) |
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71 def_op('INPLACE_FLOOR_DIVIDE', 28) |
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72 def_op('INPLACE_TRUE_DIVIDE', 29) |
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73 def_op('SLICE+0', 30) |
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74 def_op('SLICE+1', 31) |
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75 def_op('SLICE+2', 32) |
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76 def_op('SLICE+3', 33) |
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77 |
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78 def_op('STORE_SLICE+0', 40) |
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79 def_op('STORE_SLICE+1', 41) |
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80 def_op('STORE_SLICE+2', 42) |
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81 def_op('STORE_SLICE+3', 43) |
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82 |
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83 def_op('DELETE_SLICE+0', 50) |
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84 def_op('DELETE_SLICE+1', 51) |
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85 def_op('DELETE_SLICE+2', 52) |
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86 def_op('DELETE_SLICE+3', 53) |
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87 |
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88 def_op('STORE_MAP', 54) |
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89 def_op('INPLACE_ADD', 55) |
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90 def_op('INPLACE_SUBTRACT', 56) |
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91 def_op('INPLACE_MULTIPLY', 57) |
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92 def_op('INPLACE_DIVIDE', 58) |
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93 def_op('INPLACE_MODULO', 59) |
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94 def_op('STORE_SUBSCR', 60) |
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95 def_op('DELETE_SUBSCR', 61) |
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96 def_op('BINARY_LSHIFT', 62) |
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97 def_op('BINARY_RSHIFT', 63) |
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98 def_op('BINARY_AND', 64) |
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99 def_op('BINARY_XOR', 65) |
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100 def_op('BINARY_OR', 66) |
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101 def_op('INPLACE_POWER', 67) |
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102 def_op('GET_ITER', 68) |
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103 |
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104 def_op('PRINT_EXPR', 70) |
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105 def_op('PRINT_ITEM', 71) |
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106 def_op('PRINT_NEWLINE', 72) |
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107 def_op('PRINT_ITEM_TO', 73) |
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108 def_op('PRINT_NEWLINE_TO', 74) |
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109 def_op('INPLACE_LSHIFT', 75) |
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110 def_op('INPLACE_RSHIFT', 76) |
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111 def_op('INPLACE_AND', 77) |
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112 def_op('INPLACE_XOR', 78) |
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113 def_op('INPLACE_OR', 79) |
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114 def_op('BREAK_LOOP', 80) |
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115 def_op('WITH_CLEANUP', 81) |
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116 def_op('LOAD_LOCALS', 82) |
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117 def_op('RETURN_VALUE', 83) |
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118 def_op('IMPORT_STAR', 84) |
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119 def_op('EXEC_STMT', 85) |
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120 def_op('YIELD_VALUE', 86) |
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121 def_op('POP_BLOCK', 87) |
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122 def_op('END_FINALLY', 88) |
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123 def_op('BUILD_CLASS', 89) |
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124 |
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125 HAVE_ARGUMENT = 90 # Opcodes from here have an argument: |
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126 |
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127 name_op('STORE_NAME', 90) # Index in name list |
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128 name_op('DELETE_NAME', 91) # "" |
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129 def_op('UNPACK_SEQUENCE', 92) # Number of tuple items |
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130 jrel_op('FOR_ITER', 93) |
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131 |
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132 name_op('STORE_ATTR', 95) # Index in name list |
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133 name_op('DELETE_ATTR', 96) # "" |
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134 name_op('STORE_GLOBAL', 97) # "" |
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135 name_op('DELETE_GLOBAL', 98) # "" |
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136 def_op('DUP_TOPX', 99) # number of items to duplicate |
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137 def_op('LOAD_CONST', 100) # Index in const list |
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138 hasconst.append(100) |
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139 name_op('LOAD_NAME', 101) # Index in name list |
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140 def_op('BUILD_TUPLE', 102) # Number of tuple items |
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141 def_op('BUILD_LIST', 103) # Number of list items |
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142 def_op('BUILD_MAP', 104) # Number of dict entries (upto 255) |
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143 name_op('LOAD_ATTR', 105) # Index in name list |
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144 def_op('COMPARE_OP', 106) # Comparison operator |
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145 hascompare.append(106) |
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146 name_op('IMPORT_NAME', 107) # Index in name list |
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147 name_op('IMPORT_FROM', 108) # Index in name list |
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148 |
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149 jrel_op('JUMP_FORWARD', 110) # Number of bytes to skip |
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150 jrel_op('JUMP_IF_FALSE', 111) # "" |
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151 jrel_op('JUMP_IF_TRUE', 112) # "" |
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152 jabs_op('JUMP_ABSOLUTE', 113) # Target byte offset from beginning of code |
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153 |
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154 name_op('LOAD_GLOBAL', 116) # Index in name list |
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155 |
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156 jabs_op('CONTINUE_LOOP', 119) # Target address |
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157 jrel_op('SETUP_LOOP', 120) # Distance to target address |
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158 jrel_op('SETUP_EXCEPT', 121) # "" |
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159 jrel_op('SETUP_FINALLY', 122) # "" |
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160 |
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161 def_op('LOAD_FAST', 124) # Local variable number |
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162 haslocal.append(124) |
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163 def_op('STORE_FAST', 125) # Local variable number |
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164 haslocal.append(125) |
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165 def_op('DELETE_FAST', 126) # Local variable number |
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166 haslocal.append(126) |
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167 |
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168 def_op('RAISE_VARARGS', 130) # Number of raise arguments (1, 2, or 3) |
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169 def_op('CALL_FUNCTION', 131) # #args + (#kwargs << 8) |
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170 def_op('MAKE_FUNCTION', 132) # Number of args with default values |
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171 def_op('BUILD_SLICE', 133) # Number of items |
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172 def_op('MAKE_CLOSURE', 134) |
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173 def_op('LOAD_CLOSURE', 135) |
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174 hasfree.append(135) |
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175 def_op('LOAD_DEREF', 136) |
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176 hasfree.append(136) |
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177 def_op('STORE_DEREF', 137) |
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178 hasfree.append(137) |
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179 |
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180 def_op('CALL_FUNCTION_VAR', 140) # #args + (#kwargs << 8) |
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181 def_op('CALL_FUNCTION_KW', 141) # #args + (#kwargs << 8) |
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182 def_op('CALL_FUNCTION_VAR_KW', 142) # #args + (#kwargs << 8) |
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183 def_op('EXTENDED_ARG', 143) |
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184 EXTENDED_ARG = 143 |
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185 |
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186 del def_op, name_op, jrel_op, jabs_op |