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  1. or download this
    [0] Perl> print unpack '%32b*', chr( 0b10101010 );;
    4
    
  2. or download this
    C:\test>p1  ## Start new session 2.5 MB allocated to process
    
    ...
    ## Check via the reference (again).
    [0] Perl> print unpack "%32b*", $$r;;
    0