Check for Palindrome in 8085 Microprocessor

Here we will see one 8085 Microprocessor program, that can check whether a number is palindrome or not.

Problem Statement −

Write an 8085 Assembly language program to check whether a bit pattern is palindrome or not.

Discussion −

In this program we are taking the number from location 8000H. The program will return 00H if the number is not palindrome, otherwise it will return FFH.

Let the Input is 18H so the binary value is (0001 1000) this is a palindrome. The number 52H (0101 0010) it is not a palindrome.

In this problem we are taking the first number into accumulator, then shifting it to the left. When it is left shifted the MSb will be placed at LSb and also in the carry flag. This carry flag is inserted into the D register by right shifting. Thus the bit pattern will be reversed, now by checking the values of actual number and the reversed number we can determine it is palindrome or not.

Input

first input

second input

third input

Flow Diagram

Program

Output

first output

Second Output

 third output