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MOVE       A B      R(A) := R(B)
LOADK      A Bx     R(A) := K(Bx)
...
SETLISTO   A Bx
CLOSE      A        close stack variables up to R(A)
CLOSURE    A Bx     R(A) := closure(KPROTO[Bx], R(A), ... ,R(A+n))

Control Flow (5 ops)

...
WRITE               A      STDOUT.write(R(A))         write to stdout
SAY                 A      STDOUT.writeln(R(A))       write + "\n"
GRIPE               A      STDERR.write(R(A))         write to stderr