Convert ASCII to Binary in 8085 Microprocessor

Here we will see one 8085 program, the program will convert ASCII to binary values.

Problem Statement−

 Write an 8085 Assembly level program to convert ASCII to binary or Hexadecimal character equivalent values.

Discussion−

The ASCII of number 00H is 30H (48D), and ASCII of 09H is 39H (57D). So all other numbers are in the range 30H to 39H. The ASCII value of 0AH is 41H (65D) and ASCII of 0FH is 46H (70D), so all other alphabets (B, C, D, E, F) are in the range 41H to 46H.

Here the logic is simple. We will check whether the ASCII value is less than 58H (ASCII of 9 + 1) When the number is less 58, then it is numeric value. So we simply subtract 30H from the ASCII value, and when it is greater than 58H, then it is alphabetical value. So for that we are subtracting 37H.

Input

first input

second input

third input

Flow Diagram

Program

Output

first output

Second Output

 third output