as/cmd/JPL/jpl_z.casl

   1 ;;;JPL adr OF:0/SF:0/ZF:1
   2 MAIN    START
   3         LD      GR1,A
   4         AND     GR1,GR1
   5         JPL     TO
   6         LAD     GR1,0
   7         JUMP    FIN
   8 TO      LAD     GR1,#FFFF
   9 FIN     RET
  10 A       DC      0
  11         END