How to Read a Character From a Keyboard in Assembly Language

Writing code in assembly language allows you faster access to a machine's hardware. If you have an assembly program that requires a user to input a character from the keyboard, your program needs to read the character to know what to do next. For example, if you need the user to enter a "Y" or "N," you need to tell the computer to read the entered character.

For doing this following steps are required:

Instructions

1. • 1:
     Open your assembly language program's code.
   • 2:
     Type the following at the point in the code where you need to read a character from the keyboard:

     mov ah, 0
     int 16h

     The code tells the computer to read the character. From there you can tell the computer what to do with the input.
   • 3:
     Save and close your program's code.