419 lines
16 KiB
Python
419 lines
16 KiB
Python
import sys
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import binascii
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import io
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bytecode_format_sizes = {
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"MP_OPCODE_BYTE": 1,
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"MP_OPCODE_QSTR": 3,
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"MP_OPCODE_VAR_UINT": None, # Unknown because uint encoding uses the top bit to indicate the end.
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"MP_OPCODE_OFFSET": 3,
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"MP_OPCODE_BYTE_EXTRA": 2,
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"MP_OPCODE_VAR_UINT_EXTRA": None,
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"MP_OPCODE_OFFSET_EXTRA": 4
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}
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bytecodes = {
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0x00: {"name": "MP_BC_LOAD_FAST_MULTI",
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"format": "MP_OPCODE_BYTE"},
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0x10: {"name": "MP_BC_LOAD_CONST_FALSE",
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"format": "MP_OPCODE_BYTE"},
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0x11: {"name": "MP_BC_LOAD_CONST_NONE",
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"format": "MP_OPCODE_BYTE"},
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0x12: {"name": "MP_BC_LOAD_CONST_TRUE",
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"format": "MP_OPCODE_BYTE"},
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0x14: {"name": "MP_BC_LOAD_CONST_SMALL_INT",
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"format": "MP_OPCODE_VAR_UINT"},
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0x16: {"name": "MP_BC_LOAD_CONST_STRING",
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"format": "MP_OPCODE_QSTR"},
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0x17: {"name": "MP_BC_LOAD_CONST_OBJ",
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"format": "MP_OPCODE_VAR_UINT"},
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#define MP_BC_LOAD_CONST_OBJ (0x17) // ptr
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0x18: {"name": "MP_BC_LOAD_NULL",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_LOAD_FAST_N (0x19) // uint
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0x1a: {"name": "MP_BC_LOAD_DEREF",
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"format": "MP_OPCODE_VAR_UINT"},
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0x1b: {"name": "MP_BC_LOAD_NAME",
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"format": "MP_OPCODE_QSTR"},
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0x1c: {"name": "MP_BC_LOAD_GLOBAL",
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"format": "MP_OPCODE_QSTR"},
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0x1d: {"name": "MP_BC_LOAD_ATTR",
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"format": "MP_OPCODE_QSTR"},
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0x1e: {"name": "MP_BC_LOAD_METHOD",
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"format": "MP_OPCODE_QSTR"},
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0x1f: {"name": "MP_BC_LOAD_SUPER_METHOD",
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"format": "MP_OPCODE_QSTR"},
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0x20: {"name": "MP_BC_LOAD_BUILD_CLASS",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_LOAD_BUILD_CLASS (0x20)
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#define MP_BC_LOAD_SUBSCR (0x21)
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0x21: {"name": "MP_BC_LOAD_SUBSCR",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_STORE_FAST_N (0x22) // uint
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#define MP_BC_STORE_DEREF (0x23) // uint
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#define MP_BC_STORE_NAME (0x24) // qstr
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0x24: {"name": "MP_BC_STORE_NAME",
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"format": "MP_OPCODE_QSTR"},
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0x25: {"name": "MP_BC_STORE_GLOBAL",
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"format": "MP_OPCODE_QSTR"},
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0x26: {"name": "MP_BC_STORE_ATTR",
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"format": "MP_OPCODE_QSTR"},
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0x27: {"name": "MP_BC_LOAD_SUBSCR",
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"format": "MP_OPCODE_BYTE"},
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0x28: {"name": "MP_BC_DELETE_FAST",
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"format": "MP_OPCODE_VAR_UINT"},
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#define MP_BC_DELETE_FAST (0x28) // uint
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#define MP_BC_DELETE_DEREF (0x29) // uint
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#define MP_BC_DELETE_NAME (0x2a) // qstr
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#define MP_BC_DELETE_GLOBAL (0x2b) // qstr
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0x30: {"name": "MP_BC_DUP_TOP",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_DUP_TOP_TWO (0x31)
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0x32: {"name": "MP_BC_POP_TOP",
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"format": "MP_OPCODE_BYTE"},
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0x33: {"name": "MP_BC_ROT_TWO",
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"format": "MP_OPCODE_BYTE"},
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0x34: {"name": "MP_BC_ROT_THREE",
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"format": "MP_OPCODE_BYTE"},
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0x35: {"name": "MP_BC_JUMP",
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"format": "MP_OPCODE_OFFSET"},
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0x36: {"name": "MP_BC_POP_JUMP_IF_TRUE",
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"format": "MP_OPCODE_OFFSET"},
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0x37: {"name": "MP_BC_POP_JUMP_IF_FALSE",
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"format": "MP_OPCODE_OFFSET"},
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#define MP_BC_JUMP_IF_TRUE_OR_POP (0x38) // rel byte code offset, 16-bit signed, in excess
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#define MP_BC_JUMP_IF_FALSE_OR_POP (0x39) // rel byte code offset, 16-bit signed, in excess
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#define MP_BC_SETUP_WITH (0x3d) // rel byte code offset, 16-bit unsigned
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#define MP_BC_WITH_CLEANUP (0x3e)
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#define MP_BC_SETUP_EXCEPT (0x3f) // rel byte code offset, 16-bit unsigned
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#define MP_BC_SETUP_FINALLY (0x40) // rel byte code offset, 16-bit unsigned
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#define MP_BC_END_FINALLY (0x41)
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#define MP_BC_GET_ITER (0x42)
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#define MP_BC_FOR_ITER (0x43) // rel byte code offset, 16-bit unsigned
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0x43: {"name": "MP_BC_FOR_ITER",
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"format": "MP_OPCODE_OFFSET"},
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0x44: {"name": "MP_BC_POP_BLOCK",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_POP_EXCEPT (0x45)
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#define MP_BC_UNWIND_JUMP (0x46) // rel byte code offset, 16-bit signed, in excess; then a byte
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0x47: {"name": "MP_BC_GET_ITER_STACK",
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"format": "MP_OPCODE_BYTE"},
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0x50: {"name": "MP_BC_BUILD_TUPLE",
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"format": "MP_OPCODE_VAR_UINT"},
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0x51: {"name": "MP_BC_BUILD_LIST",
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"format": "MP_OPCODE_VAR_UINT"},
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0x53: {"name": "MP_BC_BUILD_MAP",
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"format": "MP_OPCODE_VAR_UINT"},
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0x54: {"name": "MP_BC_STORE_MAP",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_BUILD_SET (0x56) // uint
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#define MP_BC_BUILD_SLICE (0x58) // uint
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#define MP_BC_STORE_COMP (0x57) // uint
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0x57: {"name": "MP_BC_STORE_COMP",
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"format": "MP_OPCODE_VAR_UINT"},
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#define MP_BC_UNPACK_SEQUENCE (0x59) // uint
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#define MP_BC_UNPACK_EX (0x5a) // uint
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0x5b: {"name": "MP_BC_RETURN_VALUE",
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"format": "MP_OPCODE_BYTE"},
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0x5c: {"name": "MP_BC_RAISE_VARARGS",
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"format": "MP_OPCODE_BYTE_EXTRA"},
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#define MP_BC_YIELD_VALUE (0x5d)
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#define MP_BC_YIELD_FROM (0x5e)
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#define MP_BC_MAKE_FUNCTION (0x60) // uint
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0x60: {"name": "MP_BC_MAKE_FUNCTION",
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"format": "MP_OPCODE_VAR_UINT"},
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0x61: {"name": "MP_BC_MAKE_FUNCTION_DEFARGS",
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"format": "MP_OPCODE_VAR_UINT"},
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0x62: {"name": "MP_BC_MAKE_CLOSURE",
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"format": "MP_OPCODE_VAR_UINT_EXTRA"},
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0x63: {"name": "MP_BC_MAKE_CLOSURE",
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"format": "MP_OPCODE_VAR_UINT_EXTRA"},
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0x64: {"name": "MP_BC_CALL_FUNCTION",
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"format": "MP_OPCODE_VAR_UINT"},
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0x65: {"name": "MP_BC_CALL_FUNCTION_VAR_KW",
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"format": "MP_OPCODE_VAR_UINT"},
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0x66: {"name": "MP_BC_CALL_METHOD",
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"format": "MP_OPCODE_VAR_UINT"},
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0x67: {"name": "MP_BC_CALL_METHOD_VAR_KW",
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"format": "MP_OPCODE_VAR_UINT"},
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0x68: {"name": "MP_BC_IMPORT_NAME",
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"format": "MP_OPCODE_QSTR"},
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0x69: {"name": "MP_BC_IMPORT_FROM",
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"format": "MP_OPCODE_QSTR"},
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#define MP_BC_IMPORT_FROM (0x69) // qstr
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#define MP_BC_IMPORT_STAR (0x6a)
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#define MP_BC_LOAD_CONST_SMALL_INT_MULTI (0x70) // + N(64)
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0x7f: {"name": "MP_BC_LOAD_CONST_SMALL_INT_MULTI -1",
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"format": "MP_OPCODE_BYTE"},
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0x80: {"name": "MP_BC_LOAD_CONST_SMALL_INT_MULTI 0",
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"format": "MP_OPCODE_BYTE"},
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0x81: {"name": "MP_BC_LOAD_CONST_SMALL_INT_MULTI 1",
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"format": "MP_OPCODE_BYTE"},
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0x82: {"name": "MP_BC_LOAD_CONST_SMALL_INT_MULTI 2",
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"format": "MP_OPCODE_BYTE"},
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0x83: {"name": "MP_BC_LOAD_CONST_SMALL_INT_MULTI 3",
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"format": "MP_OPCODE_BYTE"},
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0x84: {"name": "MP_BC_LOAD_CONST_SMALL_INT_MULTI 4",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_LOAD_FAST_MULTI (0xb0) // + N(16)
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0xb0: {"name": "MP_BC_LOAD_FAST_MULTI 0",
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"format": "MP_OPCODE_BYTE"},
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0xb1: {"name": "MP_BC_LOAD_FAST_MULTI 1",
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"format": "MP_OPCODE_BYTE"},
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0xb2: {"name": "MP_BC_LOAD_FAST_MULTI 2",
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"format": "MP_OPCODE_BYTE"},
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0xb3: {"name": "MP_BC_LOAD_FAST_MULTI 3",
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"format": "MP_OPCODE_BYTE"},
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0xb4: {"name": "MP_BC_LOAD_FAST_MULTI 4",
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"format": "MP_OPCODE_BYTE"},
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0xb5: {"name": "MP_BC_LOAD_FAST_MULTI 5",
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"format": "MP_OPCODE_BYTE"},
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0xb6: {"name": "MP_BC_LOAD_FAST_MULTI 6",
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"format": "MP_OPCODE_BYTE"},
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0xb7: {"name": "MP_BC_LOAD_FAST_MULTI 7",
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"format": "MP_OPCODE_BYTE"},
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0xb8: {"name": "MP_BC_LOAD_FAST_MULTI 8",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_STORE_FAST_MULTI (0xc0) // + N(16)
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0xc0: {"name": "MP_BC_STORE_FAST_MULTI 0",
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"format": "MP_OPCODE_BYTE"},
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0xc1: {"name": "MP_BC_STORE_FAST_MULTI 1",
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"format": "MP_OPCODE_BYTE"},
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0xc2: {"name": "MP_BC_STORE_FAST_MULTI 2",
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"format": "MP_OPCODE_BYTE"},
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0xc3: {"name": "MP_BC_STORE_FAST_MULTI 3",
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"format": "MP_OPCODE_BYTE"},
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0xc4: {"name": "MP_BC_STORE_FAST_MULTI 4",
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"format": "MP_OPCODE_BYTE"},
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0xc5: {"name": "MP_BC_STORE_FAST_MULTI 5",
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"format": "MP_OPCODE_BYTE"},
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0xc6: {"name": "MP_BC_STORE_FAST_MULTI 6",
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"format": "MP_OPCODE_BYTE"},
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0xc7: {"name": "MP_BC_STORE_FAST_MULTI 7",
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"format": "MP_OPCODE_BYTE"},
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#define MP_BC_UNARY_OP_MULTI (0xd0) // + op(<MP_UNARY_OP_NUM_BYTECODE)
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# // 9 relational operations, should return a bool
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0xd7: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_LESS",
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"format": "MP_OPCODE_BYTE"},
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0xd8: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_MORE",
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"format": "MP_OPCODE_BYTE"},
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0xd9: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_EQUAL",
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"format": "MP_OPCODE_BYTE"},
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0xda: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_LESS_EQUAL",
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"format": "MP_OPCODE_BYTE"},
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0xdb: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_MORE_EQUAL",
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"format": "MP_OPCODE_BYTE"},
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0xdc: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_NOT_EQUAL",
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"format": "MP_OPCODE_BYTE"},
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# dc: MP_BINARY_OP_NOT_EQUAL,
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# dd: MP_BINARY_OP_IN,
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# de: MP_BINARY_OP_IS,
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# df: MP_BINARY_OP_EXCEPTION_MATCH,
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#
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# // 12 inplace arithmetic operations
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# e0: MP_BINARY_OP_INPLACE_OR,
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# e1: MP_BINARY_OP_INPLACE_XOR,
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# e2: MP_BINARY_OP_INPLACE_AND,
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# e3: MP_BINARY_OP_INPLACE_LSHIFT,
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# e4: MP_BINARY_OP_INPLACE_RSHIFT,
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# e5: MP_BINARY_OP_INPLACE_ADD,
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0xe5: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_INPLACE_ADD",
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"format": "MP_OPCODE_BYTE"},
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0xe6: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_INPLACE_SUBTRACT",
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"format": "MP_OPCODE_BYTE"},
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# e7: MP_BINARY_OP_INPLACE_MULTIPLY,
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# e8: MP_BINARY_OP_INPLACE_FLOOR_DIVIDE,
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# e9: MP_BINARY_OP_INPLACE_TRUE_DIVIDE,
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# ea: MP_BINARY_OP_INPLACE_MODULO,
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# eb: MP_BINARY_OP_INPLACE_POWER,
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#
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# // 12 normal arithmetic operations
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# ec: MP_BINARY_OP_OR,
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# ed: MP_BINARY_OP_XOR,
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# ee: MP_BINARY_OP_AND,
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# ef: MP_BINARY_OP_LSHIFT,
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# f0: MP_BINARY_OP_RSHIFT,
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#define MP_BC_BINARY_OP_MULTI (0xd7) // + op(<MP_BINARY_OP_NUM_BYTECODE)
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0xf1: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_ADD",
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"format": "MP_OPCODE_BYTE"},
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0xf2: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_SUBTRACT",
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"format": "MP_OPCODE_BYTE"},
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0xf3: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_MULTIPLY",
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"format": "MP_OPCODE_BYTE"},
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0xf4: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_FLOOR_DIVIDE",
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"format": "MP_OPCODE_BYTE"},
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0xf5: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_TRUE_DIVIDE",
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"format": "MP_OPCODE_BYTE"},
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0xf6: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_MODULO",
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"format": "MP_OPCODE_BYTE"},
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0xf7: {"name": "MP_BC_BINARY_OP_MULTI MP_BINARY_OP_POWER",
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"format": "MP_OPCODE_BYTE"},
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}
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def read_uint(encoded_uint, peek=False):
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unum = 0
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i = 0
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while True:
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if peek:
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b = encoded_uint.peek()[i]
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else:
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b = encoded_uint.read(1)[0]
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unum = (unum << 7) | (b & 0x7f)
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if (b & 0x80) == 0:
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break
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i += 1
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return unum
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class Prelude:
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def __init__(self, encoded_prelude):
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self.n_state = read_uint(encoded_prelude)
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self.n_exc_stack = read_uint(encoded_prelude)
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self.scope_flags = encoded_prelude.read(1)[0]
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self.n_pos_args = encoded_prelude.read(1)[0]
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self.n_kwonly_args = encoded_prelude.read(1)[0]
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self.n_def_pos_args = encoded_prelude.read(1)[0]
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self.code_info_size = read_uint(encoded_prelude, peek=True)
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class RawCode:
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# mp_raw_code_kind_t kind : 3;
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# mp_uint_t scope_flags : 7;
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# mp_uint_t n_pos_args : 11;
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# union {
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# struct {
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# const byte *bytecode;
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# const mp_uint_t *const_table;
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# #if MICROPY_PERSISTENT_CODE_SAVE
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# mp_uint_t bc_len;
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# uint16_t n_obj;
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# uint16_t n_raw_code;
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# #endif
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# } u_byte;
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# struct {
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# void *fun_data;
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# const mp_uint_t *const_table;
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# mp_uint_t type_sig; // for viper, compressed as 2-bit types; ret is MSB, then arg0, arg1, etc
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# } u_native;
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# } data;
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def __init__(self, encoded_raw_code):
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bc_len = read_uint(encoded_raw_code)
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bc = encoded_raw_code.read(bc_len)
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bc = io.BufferedReader(io.BytesIO(bc))
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prelude = Prelude(bc)
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encoded_code_info = bc.read(prelude.code_info_size)
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bc.read(1)
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while bc.peek(1)[0] == 0xff:
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bc.read(1)
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bc = bytearray(bc.read())
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#print(encoded_code_info, bc)
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self.qstrs = []
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self.simple_name = self._load_qstr(encoded_raw_code)
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self.source_file = self._load_qstr(encoded_raw_code)
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# the simple name and source file qstr indexes get written back into the byte code somehow
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#print(bc)
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self._load_bytecode_qstrs(encoded_raw_code, bc)
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#print(encoded_raw_code.peek(20)[:20])
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n_obj = read_uint(encoded_raw_code)
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n_raw_code = read_uint(encoded_raw_code)
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self.const_table = []
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for i in range(prelude.n_pos_args + prelude.n_kwonly_args):
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self.const_table.append(self._load_qstr(encoded_raw_code))
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print("load args", self.const_table[-1])
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for i in range(n_obj):
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self.const_table.append(self._load_obj(encoded_raw_code))
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print("load obj", self.const_table[-1])
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for i in range(n_raw_code):
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print("load raw code")
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self.const_table.append(RawCode(encoded_raw_code))
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print(self.qstrs[self.simple_name], self.qstrs[self.source_file])
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#print(binascii.hexlify(encoded_raw_code.peek(20)[:20]))
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def _load_qstr(self, encoded_qstr):
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string_len = read_uint(encoded_qstr)
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string = encoded_qstr.read(string_len).decode("utf-8")
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print(string)
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if string in self.qstrs:
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return self.qstrs.index(string)
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new_index = len(self.qstrs)
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self.qstrs.append(string)
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return new_index
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def _load_obj(self, encoded_obj):
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obj_type = encoded_obj.read(1)
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if obj_type == b'e':
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return "..."
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else:
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str_len = read_uint(encoded_obj)
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s = encoded_obj.read(str_len)
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if obj_type == b's':
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return s.decode("utf-8")
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elif obj_type == b'b':
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return s
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elif obj_type == b'i':
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return int(s)
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elif obj_type == b'f':
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return float(s)
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elif obj_type == b'c':
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return float(s)
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raise RuntimeError("Unknown object type {}".format(obj_type))
|
|
|
|
def _load_bytecode_qstrs(self, encoded_raw_code, bytecode):
|
|
i = 0
|
|
while i < len(bytecode):
|
|
bc = bytecode[i]
|
|
if bc not in bytecodes:
|
|
raise RuntimeError("missing code 0x{:x} at {}".format(bc, i))
|
|
return
|
|
bc = bytecodes[bc]
|
|
opcode = bc["name"]
|
|
print(opcode)
|
|
opcode_size = bytecode_format_sizes[bc["format"]]
|
|
if bc["format"] == "MP_OPCODE_QSTR":
|
|
qstr_index = self._load_qstr(encoded_raw_code)
|
|
bytecode[i+1] = qstr_index
|
|
bytecode[i+2] = qstr_index >> 8
|
|
if not opcode_size:
|
|
i += 2
|
|
while (bytecode[i] & 0x80) != 0:
|
|
i += 1
|
|
if bc["format"] == "MP_OPCODE_VAR_UINT_EXTRA":
|
|
i += 1
|
|
else:
|
|
i += opcode_size
|
|
|
|
class mpyFile:
|
|
def __init__(self, encoded_mpy):
|
|
# this matches mp-raw_code_save in py/persistentcode.c
|
|
first_byte = encoded_mpy.read(1)
|
|
if first_byte != b'M':
|
|
raise ValueError("Not a valid first byte. Should be 'M' but is {}".format(first_byte))
|
|
self.version = encoded_mpy.read(1)[0]
|
|
self.feature_flags = encoded_mpy.read(1)[0]
|
|
self.small_int_bits = encoded_mpy.read(1)[0]
|
|
self.raw_code = RawCode(encoded_mpy)
|
|
|
|
if __name__ == "__main__":
|
|
with open(sys.argv[1], "rb") as f:
|
|
mpy = mpyFile(f)
|
|
print(mpy.version)
|
|
print(mpy.feature_flags)
|
|
print(mpy.small_int_bits)
|