September 19, 2011
Aim: Write a program to move contents of one location to another location using micro-controller.
Apparatus Used: Micro-controller kit.
Assumption: Suppose one content is stored at 4000 H and we have to move that content on the 4100 H.
Algorithm:
1. Store the first number at first location (4000H)
2. Copy that number into accumulator.
3. Store the content of accumulator at second location (4100H).
Program:
Description of used instruction:
MOV: Used for Load and Copy the Data. This copies a byte from the source location to destination.
MOVX: This instruction transfer data between external memory and register A.
DPTR: This is Data Pointer. It is used for containing 16 bit data or memory address.
SJMP: Short Jump loop is used for indefinite loop within program basically used to end the program.
Result:
Input: 4000-05
Output: 4100-05
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 Location of Input as in this program 4000H. Press Space and write a number to move to other location.
· Press Enter two times again.
· Press G and provide starting address and Press Enter.
· You will Get Message “Execution Completed”.
· Press M and You will Get Message “Enter Address”.
· Provide Address for Output as in this Program 4100H and Press Space and you get Output.
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