final4

.MODEL  SMALL     ; use memory model
.STACK  100H      ; reserves 100h bytes for stack
.CODE             ; starts code segment

START:
    ;set nic 1st (A) , 2nd (B) , 3rd (C) numbers to AL,BL,CL registers
    MOV AL, 5
    MOV BL, 5
    MOV CL, 0

FINDX:
    ; evaluate A-B*C
    MOV DL,AL      ;save AL(A) to DL
    MOV AL,BL      ;save BL(B) to AL
    MUL CL         ;multiply AL(B) and CL(C) :B*C
    SUB DL, AL     ;substract DL(A) from AL :A-B*C

    ; reset AL , BL back to initial values
    MOV AL, 5
    MOV BL, 5

FINDY:
    ; evaluate A+B-C
    SUB BL, CL   ;substarct BL from CL :B-C
    ADD AL, BL   ;add AL and BL :A+(B-C)

OPTABLE:
    XOR DL,AL    ;xor DL and AL  :X xor Y
    SHL DL,1     ;shift result by 1 bit

DONE:
    MOV AL, DL
    MOV AH, 4CH   ;Select exit function
    INT  21H      ;Call the interrupt to exit

END START