47. 16-BIT DIVISION IN 8086

16-BIT DIVISION FOR SIGNED NUMBERS

DATA SEGMENT

NUM1 DW 4567H,2345H

NUM2 DW 4111H

QUO DW 2 DUP(0)

REM DW 1 DUP(0)

DATA ENDS

CODE SEGMENT

ASSUME CS:CODE,DS:DATA

START: MOV AX,DATA

MOV DS,AX

MOV AX,NUM1

MOV DX,NUM1+2

DIV NUM2

MOV QUO,AX

MOV REM,DX

MOV AH,4CH

INT 21H

CODE ENDS

END START

INPUT:       Dividend - 23454567,

                 Divisor - 4111,

OUTPUT:    AX – 8AC5H (quotient);

                 DX – 0952H (reminder);

16-BIT DIVISION FOR UNSIGNED NUMBERS

DATA SEGMENT

NUM1 DW 4567H,2345H

NUM2 DW 4111H

QUO DW 2 DUP(0)

REM DW 1 DUP(0)

DATA ENDS

CODE SEGMENT

ASSUME CS:CODE,DS:DATA

START: MOV AX,DATA

MOV DS,AX

MOV AX,NUM1

MOV DX,NUM1+2

CWD

IDIV NUM2

MOV QUO,AX

MOV REM,DX

MOV AH,4CH

INT 21H

CODE ENDS

END START

INPUT:   Dividend - -44444444,

 Divisor - 2222,

0UTPUT:  AX – FE (quotient);

               DX – FF (reminder)

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