HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                  INT 1C - System Timer Tick (User Routine)

       - called by INT 8, approximately 18.206 times per second
         (unless the program modifies the 8253 PIT
       - this is a user routine which the BIOS defaults to a simple IRET
       - this interrupt vector can be used for TSR popup utilities,
         animated graphics updates and event polling
       - since many TSR's don't maintain the integrity of the interrupt
         call chain, relying on this for TSR popup isn't recommended

Esc or Alt-X to exit int 1c Home/PgUp/PgDn/End ←↑↓→
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