// expected output
#expect 1
#expect 0

#ship debug        : Debug
#ship fifo         : Fifo

debug.in:
  recv;
  setflags a=c, b=b;
  [a]  literal 1;
  [!a] literal 0;
  wait, deliver;
  setflags a=c, b=b;
  [a]  literal 1;
  [!a] literal 0;
  deliver;

fifo.out:
  notify debug.in:1;
  notify debug.in:0;