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Division of two number using Microcontroller

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Aim: Write a program to division of two 8-bit numbers stored in Register R0 and R1 and store the result at 4012 memory location using micro-controller kit.
Apparatus Used: Micro-controller kit.

Assumption: Suppose the content of register R0 and R1 are 08H and 02H respectively. Write a program to divide these values.
  • Load data into Register R0 and R1.
  • Move one data into Accumulator.
  • Move other data into in Register B.
  • Divide A from B.
  • Initialize memory location to store output.
  • Store output at given location.


Description of used instruction:

Register B: Generally used for multiplication and division.

MOV: Used for Load and Copy the Data. This copies a byte from the source location to destination. 
DIV AB: This instruction divides a byte accumulator by the byte in Register B. accumulator. 
MOVX: This instruction transfer data between external memory and register. 
DPTR: This is Data Pointer. It is used for containing 16 bit data or memory address. 
SJMP: Short Jump loop is used for loop within program. 

Input:   R0=08 H, R1=02 H

Output:  A=04 H and it will store at external memory 4012.

Procedure to look output:
·         After ending (SJMP) the program, press Enter two times.
·         You will get message “Welcome to ------KIT”.
·         Press G and Provide initial address of program as in this program, starting address is 3000 H.
·         Press Enter.
·         After pressing Enter, You will get Message “Execution Completed”.
·         Press Reset on micro-controller KIT.
·         Press M and You will get Message “Enter Address”.
·         Provide Address for Output as in this Program 4012 H and Press Space and you get Output.

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