Convert BCD to Hex in 8085 Microprocessor

Here we will see one 8085 program, that program will convert BCD numbers to HEX equivalent.

Problem Statement −

A BCD number is stored at location 802BH. Convert the number into its binary equivalent and store it to the memory location 802CH.

Discussion −

In this problem we are taking a BCD number from the memory and converting it to its binary equivalent. At first we are cutting each nibble of the input. So if the input is 52 (0101 0010) then we can simply cut it by masking the number by 0FH and F0H. When the Higher order nibble is cut, then rotate it to the left four times to transfer it to lower nibble.

Now simply multiply the numbers by using decimal adjust method to get final decimal result.

Input

Flow Diagram

Program

Output