0:417h                   Shift Status

Length: 1 byte

                          Shift Status

7 6 5 4 3 2 1 0
x . . . . . . .      Insert locked
. x . . . . . .      Caps Lock locked
. . x . . . . .      Num Lock locked
. . . x . . . .      Scroll Lock locked
. . . . x . . .      Alt key is pressed
. . . . . x . .      Ctrl key is pressed
. . . . . . x .      Left Shift key is pressed
. . . . . . . x      Right Shift key is pressed

See also: INT 16h, 02h
See also: 0:418h

0:417h Shift Status