Int 33 Fn 0005  - MS Mouse V1.0+ - Return Button Press Data                [M]

   AX = 0005h
   BX = button
       0000h left
       0001h right
       0002h middle (Mouse Systems/Logitech mouse)

Return: AX = button states
       bit 0 left button pressed if 1
       bit 1 right button pressed if 1
       bit 2 middle button pressed if 1 (Mouse Systems/Logitech mouse)
   BX = number of times specified button has been pressed since last call
   CX = column at time specified button was last pressed
   DX = row at time specified button was last pressed

See Also: AX=0006h,INT 62/AX=007Ch