HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                    INT 33,14 - Swap Interrupt Subroutines

       AX = 14h
       ES:DX = far pointer to user routine
       CX = user interrupt mask:

               │F-8│7│6│5│4│3│2│1│0│ user interrupt mask in CX
                 │  │ │ │ │ │ │ │ └─── cursor position changed
                 │  │ │ │ │ │ │ └──── left button pressed
                 │  │ │ │ │ │ └───── left button released
                 │  │ │ │ │ └────── right button pressed
                 │  │ │ │ └─────── right button released
                 └──┴─┴─┴──────── unused

       on return:
       CX = previous user interrupt mask
       ES:DX = far pointer to previous user interrupt

       - routine at ES:DX is called if an event occurs and the
         corresponding bit specified in user mask is set
       - routine at ES:DX receives parameters in the following
         registers:

         AX = condition mask causing call
         CX = horizontal cursor position
         DX = vertical cursor position
         DI = horizontal counts
         SI = vertical counts
         DS = mouse driver data segment
         BX = button state:

            │F-2│1│0│
              │  │ └─── left button (1 = pressed)
              │  └──── right button (1 = pressed)
              └────── unused

       - initial call mask and user routine should be restore on exit
         from user program
       - user program may need to set DS to it's own segment
       - see   INT 33,C

Esc or Alt-X to exit int 33,14 Home/PgUp/PgDn/End ←↑↓→