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Subtraction of Two 16-bit Numbers without Carry | 8086

In this tutorial, we will learn how to find the subtraction of two 16-bit numbers without carry in 8086 Microprocessor? By Akash Kumar Last updated : May 22, 2023

Problem Statement

To perform subtraction operation between 2 16bit numbers without carry using 8086 Microprocessor.

Algorithm

1. Load the first data into register AX from memory.
2. Load the second data into register BX from memory.
3. Subtract content of register BX with the content of register AX.
4. Now load the result value from AX to memory.

8086 program to subtract two 16-bit numbers without carry

MOV     AX, 2050
MOV     BX, 2052
SUB     AX, BX
MOV     2054, AX
HLT

Observation

INPUT: 
2050:03
2051:03
2052:03
2053:03 

OUTPUT: 
2052:00
2053:00

Hence we successfully subtracted two 16-bit numbers without using carry.

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