/Lib/opcode.py
http://unladen-swallow.googlecode.com/ · Python · 195 lines · 150 code · 28 blank · 17 comment · 1 complexity · 0b280fef8564336c2857621f42f15d7d MD5 · raw file
- """
- opcode module - potentially shared between dis and other modules which
- operate on bytecodes (e.g. peephole optimizers).
- """
- __all__ = ["cmp_op", "hasconst", "hasname", "hasjrel", "hasjabs",
- "haslocal", "hascompare", "hasfree", "opname", "opmap",
- "HAVE_ARGUMENT", "EXTENDED_ARG"]
- cmp_op = ('<', '<=', '==', '!=', '>', '>=', 'in', 'not in', 'is',
- 'is not', 'exception match', 'BAD')
- hasconst = []
- hasname = []
- hasjrel = []
- hasjabs = []
- haslocal = []
- hascompare = []
- hasfree = []
- opmap = {}
- opname = [''] * 256
- for op in range(256): opname[op] = '<%r>' % (op,)
- del op
- def def_op(name, op):
- opname[op] = name
- opmap[name] = op
- def name_op(name, op):
- def_op(name, op)
- hasname.append(op)
- def jrel_op(name, op):
- def_op(name, op)
- hasjrel.append(op)
- def jabs_op(name, op):
- def_op(name, op)
- hasjabs.append(op)
- # Instruction opcodes for compiled code
- # Blank lines correspond to available opcodes
- def_op('STOP_CODE', 0)
- def_op('POP_TOP', 1)
- def_op('ROT_TWO', 2)
- def_op('ROT_THREE', 3)
- def_op('DUP_TOP', 4)
- def_op('ROT_FOUR', 5)
- def_op('NOP', 9)
- def_op('UNARY_POSITIVE', 10)
- def_op('UNARY_NEGATIVE', 11)
- def_op('UNARY_NOT', 12)
- def_op('UNARY_CONVERT', 13)
- def_op('UNARY_INVERT', 15)
- def_op('DUP_TOP_TWO', 16)
- def_op('DUP_TOP_THREE', 17)
- def_op('LIST_APPEND', 18)
- def_op('BINARY_POWER', 19)
- def_op('BINARY_MULTIPLY', 20)
- def_op('BINARY_DIVIDE', 21)
- def_op('BINARY_MODULO', 22)
- def_op('BINARY_ADD', 23)
- def_op('BINARY_SUBTRACT', 24)
- def_op('BINARY_SUBSCR', 25)
- def_op('BINARY_FLOOR_DIVIDE', 26)
- def_op('BINARY_TRUE_DIVIDE', 27)
- def_op('INPLACE_FLOOR_DIVIDE', 28)
- def_op('INPLACE_TRUE_DIVIDE', 29)
- def_op('SLICE_NONE', 30)
- def_op('SLICE_LEFT', 31)
- def_op('SLICE_RIGHT', 32)
- def_op('SLICE_BOTH', 33)
- def_op('RAISE_VARARGS_ZERO', 34)
- def_op('RAISE_VARARGS_ONE', 35)
- def_op('RAISE_VARARGS_TWO', 36)
- def_op('RAISE_VARARGS_THREE', 37)
- def_op('BUILD_SLICE_TWO', 38)
- def_op('BUILD_SLICE_THREE', 39)
- def_op('STORE_SLICE_NONE', 40)
- def_op('STORE_SLICE_LEFT', 41)
- def_op('STORE_SLICE_RIGHT', 42)
- def_op('STORE_SLICE_BOTH', 43)
- def_op('DELETE_SLICE_NONE', 50)
- def_op('DELETE_SLICE_LEFT', 51)
- def_op('DELETE_SLICE_RIGHT', 52)
- def_op('DELETE_SLICE_BOTH', 53)
- def_op('STORE_MAP', 54)
- def_op('INPLACE_ADD', 55)
- def_op('INPLACE_SUBTRACT', 56)
- def_op('INPLACE_MULTIPLY', 57)
- def_op('INPLACE_DIVIDE', 58)
- def_op('INPLACE_MODULO', 59)
- def_op('STORE_SUBSCR', 60)
- def_op('DELETE_SUBSCR', 61)
- def_op('BINARY_LSHIFT', 62)
- def_op('BINARY_RSHIFT', 63)
- def_op('BINARY_AND', 64)
- def_op('BINARY_XOR', 65)
- def_op('BINARY_OR', 66)
- def_op('INPLACE_POWER', 67)
- def_op('GET_ITER', 68)
- # def_op('PRINT_EXPR', 70) Replaced with the #@displayhook function.
- # def_op('PRINT_ITEM', 71) Other PRINT_* opcodes replaced by #@print_stmt().
- # def_op('PRINT_NEWLINE', 72)
- # def_op('PRINT_ITEM_TO', 73)
- # def_op('PRINT_NEWLINE_TO', 74)
- def_op('INPLACE_LSHIFT', 75)
- def_op('INPLACE_RSHIFT', 76)
- def_op('INPLACE_AND', 77)
- def_op('INPLACE_XOR', 78)
- def_op('INPLACE_OR', 79)
- def_op('BREAK_LOOP', 80)
- def_op('WITH_CLEANUP', 81)
- # def_op('LOAD_LOCALS', 82) Replaced with a function call to #@locals.
- def_op('RETURN_VALUE', 83)
- # def_op('IMPORT_STAR', 84) Replaced with a function call to #@import_star.
- # def_op('EXEC_STMT', 85) Replaced with a function call to #@exec.
- def_op('YIELD_VALUE', 86)
- def_op('POP_BLOCK', 87)
- def_op('END_FINALLY', 88)
- # def_op('BUILD_CLASS', xxx) Replaced with a function call to #@buildclass.
- def_op('IMPORT_NAME', 89)
- HAVE_ARGUMENT = 90 # Opcodes from here have an argument:
- name_op('STORE_NAME', 90) # Index in name list
- name_op('DELETE_NAME', 91) # ""
- def_op('UNPACK_SEQUENCE', 92) # Number of tuple items
- jrel_op('FOR_ITER', 93)
- name_op('STORE_ATTR', 95) # Index in name list
- name_op('DELETE_ATTR', 96) # ""
- name_op('STORE_GLOBAL', 97) # ""
- name_op('DELETE_GLOBAL', 98) # ""
- def_op('LOAD_CONST', 100) # Index in const list
- hasconst.append(100)
- name_op('LOAD_NAME', 101) # Index in name list
- def_op('BUILD_TUPLE', 102) # Number of tuple items
- def_op('BUILD_LIST', 103) # Number of list items
- def_op('BUILD_MAP', 104) # Number of dict entries (upto 255)
- name_op('LOAD_ATTR', 105) # Index in name list
- def_op('COMPARE_OP', 106) # Comparison operator
- hascompare.append(106)
- # name_op('IMPORT_FROM', 108) # Replaced by #@import_from.
- name_op('LOAD_METHOD', 109) # Index in name list
- jrel_op('JUMP_FORWARD', 110) # Number of bytes to skip
- jabs_op('JUMP_IF_FALSE_OR_POP', 111) # Target byte offset from beginning of code
- jabs_op('JUMP_IF_TRUE_OR_POP', 112) # ""
- jabs_op('JUMP_ABSOLUTE', 113) # ""
- jabs_op('POP_JUMP_IF_FALSE', 114) # ""
- jabs_op('POP_JUMP_IF_TRUE', 115) # ""
- name_op('LOAD_GLOBAL', 116) # Index in name list
- jabs_op('CONTINUE_LOOP', 119) # Target address
- jrel_op('SETUP_LOOP', 120) # Distance to target address
- jrel_op('SETUP_EXCEPT', 121) # ""
- jrel_op('SETUP_FINALLY', 122) # ""
- def_op('LOAD_FAST', 124) # Local variable number
- haslocal.append(124)
- def_op('STORE_FAST', 125) # Local variable number
- haslocal.append(125)
- def_op('DELETE_FAST', 126) # Local variable number
- haslocal.append(126)
- def_op('CALL_FUNCTION', 131) # #args + (#kwargs << 8)
- # def_op('MAKE_FUNCTION', 132) Replaced by #@make_function calls.
- def_op('CALL_METHOD', 133) # #args + (#kwargs << 8)
- def_op('MAKE_CLOSURE', 134)
- def_op('LOAD_CLOSURE', 135)
- hasfree.append(135)
- def_op('LOAD_DEREF', 136)
- hasfree.append(136)
- def_op('STORE_DEREF', 137)
- hasfree.append(137)
- def_op('CALL_FUNCTION_VAR', 140) # #args + (#kwargs << 8)
- def_op('CALL_FUNCTION_KW', 141) # #args + (#kwargs << 8)
- def_op('CALL_FUNCTION_VAR_KW', 142) # #args + (#kwargs << 8)
- def_op('EXTENDED_ARG', 143)
- EXTENDED_ARG = 143
- del def_op, name_op, jrel_op, jabs_op