Assembly Program to DIVISION two16-bit number by 8-bit numbers 8086 ( signed and unsigned)

Hello!

In assembly language 8086 we use mnemonics in order to perform arithmetic operations like   in DIV/IDIV division.

So, Let's dive deep into what  DIV and IDIV is ...

DIV:- It  divides unsigned/signed word(16bit) by unsigned/signed byte(8bit) . Quotient is stored in AL  and remainder stored in AH register.

IDIV:-  It  divides signed word(16bit) by signed byte(8bit) . Quotient is stored in AL  and remainder stored in AH register.

Below are programs for signed division and unsigned division of 16bit/8bit in 8086....

A) Unsigned 8086 Program:-

data segment

no1 dw 21h

no2 db 31h

q db ?

r  db ?

data ends

code segment

start : assume  cs :code,  ds :data

mov ax ,data

mov ds , ax

mov ax , no1

DIV  no2

mov  q , al

mov r , ah

mov ah ,4ch

int 21h

code ends

end start

B) Signed Division 8086 Program:-

data segment

no1 dw 21h

no2 db 31h

q db ?

r  db ?

data ends

code segment

start : assume  cs :code,  ds :data

mov ax ,data

mov ds , ax

mov ax , no1

IDIV  no2

mov  q , al

mov r , ah

mov ah ,4ch

int 21h

code ends

end start

32/16 bit DIVISION 8086 Program Code - for Signed and Unsigned Both

32/16 bit DIVISION program code (Signed)

Multiply 16-bit BCD program

Block exchange  

Programs:-

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