START  00
       LOADA  R1,@DAT1LO
       LOADA  R2,@DAT1HI
       LOADA  R3,@DAT2LO
       LOADA  R4,@DAT2HI
       ADD    RB,R2,R4
       LOAD   R5,80
       AND    R6,R1,R5
       ROTATE R6,1
       AND    R7,R3,R5
       ROTATE R7,1
       ADD    R6,R6,R7
       LOAD   R5,7F
       AND    R1,R1,R5
       AND    R3,R3,R5
       ADD    RA,R1,R3
       LOAD   R5,80
       AND    R8,RA,R5
       LOAD   R5,7F
       AND    RA,RA,R5
       ROTATE R8,1
       ADD    R6,R6,R8
       LOAD   R5,80
       AND    R7,R6,R5
       ROTATE R6,7
       AND    R6,R6,R5
       OR     RA,RA,R6
       LOAD   R0,0
       JUMP   R7,@END
CARRY  LOAD   R7,1
       ADD    RB,RB,R7
END    STORE  RA,@RESTLO
       STORE  RB,@RESTHI
       HALT
DAT1LO DB     FF
DAT1HI DB     02
DAT2LO DB     01
DAT2HI DB     F1
RESTLO DB
RESTHI DB