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97 lines
2.1 KiB
Python
97 lines
2.1 KiB
Python
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#!/usr/bin/env python
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# This file is Copyright 2009, 2010 Dean Hall.
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#
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# This file is part of the Python-on-a-Chip program.
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# Python-on-a-Chip is free software: you can redistribute it and/or modify
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# it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1.
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#
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# Python-on-a-Chip is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# A copy of the GNU LESSER GENERAL PUBLIC LICENSE Version 2.1
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# is seen in the file COPYING in this directory.
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"""
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PyMite Object Descriptor Decoder
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================================
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Decodes an object descriptor value into its bit fields.
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"""
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## @file
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# @copybrief pmOldDecoder
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## @package pmOldDecoder
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# @brief PyMite Object Descriptor Decoder
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#
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# Decodes an object descriptor value into its bit fields.
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import sys, pprint
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__usage__ = """USAGE:
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./pmOdDecoder.py odvalue
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"""
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TYPES = (
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'OBJ_TYPE_NON',
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'OBJ_TYPE_INT',
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'OBJ_TYPE_FLT',
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'OBJ_TYPE_STR',
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'OBJ_TYPE_TUP',
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'OBJ_TYPE_COB',
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'OBJ_TYPE_MOD',
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'OBJ_TYPE_CLO',
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'OBJ_TYPE_FXN',
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'OBJ_TYPE_CLI',
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'OBJ_TYPE_CIM',
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'OBJ_TYPE_NIM',
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'OBJ_TYPE_NOB',
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'OBJ_TYPE_THR',
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0x0E,
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'OBJ_TYPE_BOOL',
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'OBJ_TYPE_CIO',
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'OBJ_TYPE_MTH',
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'OBJ_TYPE_LST',
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'OBJ_TYPE_DIC',
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0x14,0x15,0x16,0x17,0x18,
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'OBJ_TYPE_FRM',
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'OBJ_TYPE_BLK',
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'OBJ_TYPE_SEG',
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'OBJ_TYPE_SGL',
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'OBJ_TYPE_SQI',
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'OBJ_TYPE_NFM',
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)
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def od_decode(odvalue):
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return {
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"val": odvalue,
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"size": (odvalue & 0x001F) * 4,
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"type": TYPES[(odvalue & 0x3E00) >> 9],
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"mark": (odvalue & 0x4000) >> 14,
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"free": (odvalue & 0x8000) >> 15,
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}
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def to_int(s):
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if s.startswith("0x"):
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return int(s, 16)
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return int(s)
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def main():
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odvalues = sys.argv[1:]
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odvalues = map(to_int, odvalues)
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ods = map(od_decode, odvalues)
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for od in ods:
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print("%d (0x%04x): %s[%d], f=%d, m=%d"
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% (od['val'], od['val'], od['type'], od['size'], od['free'], od['mark']))
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if __name__ == "__main__":
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main()
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