HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                     INT 21,1 - Keyboard Input with Echo

       AH = 01

       on return:
       AL = character from standard input device

       - waits for keyboard input from STDIN and echoes to STDOUT
       - returns 0 for extended keystroke, then function must be
         called again to return scan code
       - if Ctrl-Break is detected, INT 23 is executed

Esc or Alt-X to exit int 21,1 Home/PgUp/PgDn/End ←↑↓→