ORG     0000H
       MOV  R1,#6
       MOV  R2,#8
       MOV  R3,#9
       MOV  B, #7
       MOV  A, R1
       MUL  AB
       MOV  R1,A
       MOV  A,R2
       MOV  B,#4
       DIV  AB
       ADD  A,R1
       SUBB A,R3
;      
       END