Problem 3: Memory operations on the video display

• During a fit of late night of coding, you decide to add a feature to your machine problem
  that alters the appearance of the text-mode video screen.

  Your subroutine, when called, should scan the entire 80x25 text-mode video screen for the letter 'I'.
  For each letter 'I' that is found on the screen, set the foreground color of the 'I' to be bright red.
  Leave the background color unchanged.

  All other characters on the screen should remain completely unchanged.

  VidTextSeg EQU 0D800h ; Useful constant RED_I PROC NEAR RED_I ENDP

  (30 pts)