// expected output
#expect 0

#ship debug        : Debug
#ship fifo         : Fifo

debug.in:
  send token to fifo.out:0;
  set ilc=*;  recv, deliver;

fifo.out:
  set word= 2;
  set ilc=1;
  recv token;
  set flags a=c, b=b;
  [a]  set word= 1;
  [!a] set word= 0;
  send to debug.in;