48. 16-BIT MULTIPLICATION IN 8086

16-BIT MULTIPLICATION FOR UNSIGNED NUMBERS

DATA SEGMENT

NUM DW 1234H,1234H

PROD DW 2 DUP(0)

DATA ENDS

CODE SEGMENT

ASSUME CS:CODE,DS:DATA

START: MOV AX,DATA

MOV DS,AX

LEA SI,NUM

MOV AX,[SI]

MOV BX,[SI+2]

MUL BX

MOV PROD,AX

MOV PROD+2,DX

MOV AH,4CH

INT 21H

CODE ENDS

END START

INPUT: Multiplicand- 1234H,

           Multiplier-   1234H

OUTPUT: DX-01 4B

              AX-54 90

16-BIT MULTIPLICATION FOR SIGNED NUMBERS

DATA SEGMENT

NUM DW -2,1

PROD DW 2 DUP(0)

DATA ENDS

CODE SEGMENT

ASSUME CS:CODE,DS:DATA

START: MOV AX,DATA

MOV DS,AX

LEA SI,NUM

MOV AX,[SI]

MOV BX,[SI+2]

IMUL BX

MOV PROD,AX

MOV PROD+2,DX

MOV AH,4CH

INT 21H

CODE ENDS

END START

INPUT: Multiplicand- -2,

           Multiplier-   1

OUTPUT: DX – FF FF

               AX – FF FE

Need the code??

Download Link= https://www.dropbox.com/s/9hwez0vvh4sqpeb/16-bit%20multiplication.docx