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Re^2: pack/unpack 6-bit fields. (precision)

by tye (Cardinal)
on Aug 18, 2004 at 07:10 UTC ( #383881=note: print w/ replies, xml ) Need Help??

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  1. or download this
    bytes:  765432 10 7654 3210 76 543210
fields: 543210 54 3210 5432 10 543210
or
bytes:  012345 67 0123 4567 01 234567
fields: 012345 01 2345 0123 45 012345
  2. or download this
    my @fields=
     unpack "C*",    # 16 6-bit numeric values
...
     unpack "B6"x16, # 16 6-character base-2  strings
     pack   "C*",    # string of 16 bytes, each  holding a 6-bit value
     @fields;        # 16 6-bit numeric values

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