18 Program to subtract two 16 bit number in 8086 Microprocessor

Code:

; Program to substract two 16 bit numbers
.MODEL SMALL
.STACK 100

.CODE
  MOV AX , 8900H  ; Load 1st num
  MOV BX , 7C60H  ; Load 2nd num

  SUB AX , BX  ; Substract BX from AX

  MOV DX , AX  ; Store contain of AX into DX

  MOV AH , 2   ; Service routine to print contain of DX
  INT 21H

  MOV AH , 4CH ; Service Routine to Exit
  INT 21H

END

Ouput:

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