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      1 
      2 """
      3 opcode module - potentially shared between dis and other modules which
      4 operate on bytecodes (e.g. peephole optimizers).
      5 """
      6 
      7 __all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
      8            "haslocal", "hascompare", "hasfree", "opname", "opmap",
      9            "HAVE_ARGUMENT", "EXTENDED_ARG"]
     10 
     11 cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is',
     12         'is not', 'exception match', 'BAD')
     13 
     14 hasconst = []
     15 hasname = []
     16 hasjrel = []
     17 hasjabs = []
     18 haslocal = []
     19 hascompare = []
     20 hasfree = []
     21 
     22 opmap = {}
     23 opname = [''] * 256
     24 for op in range(256): opname[op] = '<%r>' % (op,)
     25 del op
     26 
     27 def def_op(name, op):
     28     opname[op] = name
     29     opmap[name] = op
     30 
     31 def name_op(name, op):
     32     def_op(name, op)
     33     hasname.append(op)
     34 
     35 def jrel_op(name, op):
     36     def_op(name, op)
     37     hasjrel.append(op)
     38 
     39 def jabs_op(name, op):
     40     def_op(name, op)
     41     hasjabs.append(op)
     42 
     43 # Instruction opcodes for compiled code

     44 # Blank lines correspond to available opcodes

     45 
     46 def_op('STOP_CODE', 0)
     47 def_op('POP_TOP', 1)
     48 def_op('ROT_TWO', 2)
     49 def_op('ROT_THREE', 3)
     50 def_op('DUP_TOP', 4)
     51 def_op('ROT_FOUR', 5)
     52 
     53 def_op('NOP', 9)
     54 def_op('UNARY_POSITIVE', 10)
     55 def_op('UNARY_NEGATIVE', 11)
     56 def_op('UNARY_NOT', 12)
     57 def_op('UNARY_CONVERT', 13)
     58 
     59 def_op('UNARY_INVERT', 15)
     60 
     61 def_op('BINARY_POWER', 19)
     62 def_op('BINARY_MULTIPLY', 20)
     63 def_op('BINARY_DIVIDE', 21)
     64 def_op('BINARY_MODULO', 22)
     65 def_op('BINARY_ADD', 23)
     66 def_op('BINARY_SUBTRACT', 24)
     67 def_op('BINARY_SUBSCR', 25)
     68 def_op('BINARY_FLOOR_DIVIDE', 26)
     69 def_op('BINARY_TRUE_DIVIDE', 27)
     70 def_op('INPLACE_FLOOR_DIVIDE', 28)
     71 def_op('INPLACE_TRUE_DIVIDE', 29)
     72 def_op('SLICE+0', 30)
     73 def_op('SLICE+1', 31)
     74 def_op('SLICE+2', 32)
     75 def_op('SLICE+3', 33)
     76 
     77 def_op('STORE_SLICE+0', 40)
     78 def_op('STORE_SLICE+1', 41)
     79 def_op('STORE_SLICE+2', 42)
     80 def_op('STORE_SLICE+3', 43)
     81 
     82 def_op('DELETE_SLICE+0', 50)
     83 def_op('DELETE_SLICE+1', 51)
     84 def_op('DELETE_SLICE+2', 52)
     85 def_op('DELETE_SLICE+3', 53)
     86 
     87 def_op('STORE_MAP', 54)
     88 def_op('INPLACE_ADD', 55)
     89 def_op('INPLACE_SUBTRACT', 56)
     90 def_op('INPLACE_MULTIPLY', 57)
     91 def_op('INPLACE_DIVIDE', 58)
     92 def_op('INPLACE_MODULO', 59)
     93 def_op('STORE_SUBSCR', 60)
     94 def_op('DELETE_SUBSCR', 61)
     95 def_op('BINARY_LSHIFT', 62)
     96 def_op('BINARY_RSHIFT', 63)
     97 def_op('BINARY_AND', 64)
     98 def_op('BINARY_XOR', 65)
     99 def_op('BINARY_OR', 66)
    100 def_op('INPLACE_POWER', 67)
    101 def_op('GET_ITER', 68)
    102 
    103 def_op('PRINT_EXPR', 70)
    104 def_op('PRINT_ITEM', 71)
    105 def_op('PRINT_NEWLINE', 72)
    106 def_op('PRINT_ITEM_TO', 73)
    107 def_op('PRINT_NEWLINE_TO', 74)
    108 def_op('INPLACE_LSHIFT', 75)
    109 def_op('INPLACE_RSHIFT', 76)
    110 def_op('INPLACE_AND', 77)
    111 def_op('INPLACE_XOR', 78)
    112 def_op('INPLACE_OR', 79)
    113 def_op('BREAK_LOOP', 80)
    114 def_op('WITH_CLEANUP', 81)
    115 def_op('LOAD_LOCALS', 82)
    116 def_op('RETURN_VALUE', 83)
    117 def_op('IMPORT_STAR', 84)
    118 def_op('EXEC_STMT', 85)
    119 def_op('YIELD_VALUE', 86)
    120 def_op('POP_BLOCK', 87)
    121 def_op('END_FINALLY', 88)
    122 def_op('BUILD_CLASS', 89)
    123 
    124 HAVE_ARGUMENT = 90              # Opcodes from here have an argument:

    125 
    126 name_op('STORE_NAME', 90)       # Index in name list

    127 name_op('DELETE_NAME', 91)      # ""

    128 def_op('UNPACK_SEQUENCE', 92)   # Number of tuple items

    129 jrel_op('FOR_ITER', 93)
    130 def_op('LIST_APPEND', 94)
    131 name_op('STORE_ATTR', 95)       # Index in name list

    132 name_op('DELETE_ATTR', 96)      # ""

    133 name_op('STORE_GLOBAL', 97)     # ""

    134 name_op('DELETE_GLOBAL', 98)    # ""

    135 def_op('DUP_TOPX', 99)          # number of items to duplicate

    136 def_op('LOAD_CONST', 100)       # Index in const list

    137 hasconst.append(100)
    138 name_op('LOAD_NAME', 101)       # Index in name list

    139 def_op('BUILD_TUPLE', 102)      # Number of tuple items

    140 def_op('BUILD_LIST', 103)       # Number of list items

    141 def_op('BUILD_SET', 104)        # Number of set items

    142 def_op('BUILD_MAP', 105)        # Number of dict entries (upto 255)

    143 name_op('LOAD_ATTR', 106)       # Index in name list

    144 def_op('COMPARE_OP', 107)       # Comparison operator

    145 hascompare.append(107)
    146 name_op('IMPORT_NAME', 108)     # Index in name list

    147 name_op('IMPORT_FROM', 109)     # Index in name list

    148 jrel_op('JUMP_FORWARD', 110)    # Number of bytes to skip

    149 jabs_op('JUMP_IF_FALSE_OR_POP', 111) # Target byte offset from beginning of code

    150 jabs_op('JUMP_IF_TRUE_OR_POP', 112)  # ""

    151 jabs_op('JUMP_ABSOLUTE', 113)        # ""

    152 jabs_op('POP_JUMP_IF_FALSE', 114)    # ""

    153 jabs_op('POP_JUMP_IF_TRUE', 115)     # ""

    154 
    155 name_op('LOAD_GLOBAL', 116)     # Index in name list

    156 
    157 jabs_op('CONTINUE_LOOP', 119)   # Target address

    158 jrel_op('SETUP_LOOP', 120)      # Distance to target address

    159 jrel_op('SETUP_EXCEPT', 121)    # ""

    160 jrel_op('SETUP_FINALLY', 122)   # ""

    161 
    162 def_op('LOAD_FAST', 124)        # Local variable number

    163 haslocal.append(124)
    164 def_op('STORE_FAST', 125)       # Local variable number

    165 haslocal.append(125)
    166 def_op('DELETE_FAST', 126)      # Local variable number

    167 haslocal.append(126)
    168 
    169 def_op('RAISE_VARARGS', 130)    # Number of raise arguments (1, 2, or 3)

    170 def_op('CALL_FUNCTION', 131)    # #args + (#kwargs << 8)

    171 def_op('MAKE_FUNCTION', 132)    # Number of args with default values

    172 def_op('BUILD_SLICE', 133)      # Number of items

    173 def_op('MAKE_CLOSURE', 134)
    174 def_op('LOAD_CLOSURE', 135)
    175 hasfree.append(135)
    176 def_op('LOAD_DEREF', 136)
    177 hasfree.append(136)
    178 def_op('STORE_DEREF', 137)
    179 hasfree.append(137)
    180 
    181 def_op('CALL_FUNCTION_VAR', 140)     # #args + (#kwargs << 8)

    182 def_op('CALL_FUNCTION_KW', 141)      # #args + (#kwargs << 8)

    183 def_op('CALL_FUNCTION_VAR_KW', 142)  # #args + (#kwargs << 8)

    184 
    185 jrel_op('SETUP_WITH', 143)
    186 
    187 def_op('EXTENDED_ARG', 145)
    188 EXTENDED_ARG = 145
    189 def_op('SET_ADD', 146)
    190 def_op('MAP_ADD', 147)
    191 
    192 del def_op, name_op, jrel_op, jabs_op
    193