IFG C, 0x1f ;if the key is an ASCII key
  SET PC, kd.checkASCII ;; Arrow keys ASCII codes are more than 0x1f, so we should check them, else we print the character.

IFE C, 0x10 ;backspace
  JSR kd.keystroke.backspace

SET PC, POP
 ;return from the interrupt

:kd.checkASCII
IFG C, 0x7f
  IFL C, 0x84
    IFN [A+6], 0
      JSR [A+6]    ;; Arrow keys.

; Else:
SET PC, kd.keystroke.writeChar