B::Disassembler
See the current Perl documentation for B::Disassembler.
Here is our local, out-dated (pre-5.6) version:
B::Disassembler - Disassemble Perl bytecode
use Disassembler;
See ext/B/B/Disassembler.pm.
AUTHOR
Malcolm Beattie, mbeattie@sable.ox.ac.uk