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LibrePilot/flight/libraries/PyMite/tools/pmOdDecoder.py

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