root/as/cmd/SUBL/subl_r_adr.casl

/* [<][>][^][v][top][bottom][index][help] */ 
   1 ;;; SUBL r,adr
   2 MAIN    START
   3 BEGIN   LD      GR1,A
   4         SUBL    GR1,B
   5         RET
   6 A       DC      3
   7 B       DC      1
   8         END
/* [<][>][^][v][top][bottom][index][help] */