TITLE	MULTIPLICATION OF DOUBLEWORD BY WORD USING 86/286 
 PAGE	60,132
        .MODEL SMALL
        .STACK 200H              
        .DATA
 DATA1	DD	500000	 	;MULTIPLICAND (UP TO 32-BIT SIZE DATA)
 DATA2	DW	50000 	 	;MULTIPLIER (UP TO 16-BIT SIZE)	
 RESULT DQ      ?                       ;PRODUCT (UP TO 48-BIT SIZE)
        .CODE
 MAIN:	MOV	AX,@DATA
        MOV     DS,AX
        MOV     AX,WORD PTR DATA1       ;GET LOW WORD OF MULTIPLICAND 
        MUL     WORD PTR DATA2          ;MULTIPLY THE MULTIPLIER
        MOV     WORD PTR RESULT,AX      ;SAVE LOW WORD OF THE PRODUCT
        MOV     WORD PTR RESULT + 2,DX  ;SAVE MIDDLE WORD OF PRODUCT
        MOV     AX,WORD PTR DATA1 + 2   ;GET THE HIGH WORD OF MULTIPLICAND
        MUL     WORD PTR DATA2          ;MULTIPLY THE MULTIPLIER
        ADD     WORD PTR RESULT + 2 ,AX ;ADD THE MIDDLE 16-BIT WORD
        ADC     DX,0                    ;PROPAGATE THE CARRY TO DX
        MOV     WORD PTR RESULT + 4,DX  ;SAVE THE HIGH WORD RESULT
        MOV     AH,4CH
        INT     21H
        END     MAIN