Jun 012010
How to print out Perl opcodes?
Answer:
If you want to have a deep understanding on how Perl execute your statements, you can try the following:
# perl -MO=Concise -e ' print "foo\n" '
6 <@> leave[1 ref] vKP/REFC ->(end)
1 <0> enter ->2
2 <;> nextstate(main 1 -e:1) v:{ ->3
5 <@> print vK ->6
3 <0> pushmark s ->4
4 <$> const[PV "foo\n"] s ->5
-e syntax OK
