If you aren't using a very old perl, this should do it (update: slight tweaks):
my ($d1, $d2, $d3) = map oct "0b$_", sprintf("%08b", 162) =~ /(.)(...)
+(....)$/;
I'd appreciate it if someone could explain just what unpack "b1b3b4", 162
actually does; I've never found the pack documentation to be particularly informative.
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