HelpPC 2.10	Quick Reference Utility	Copyright 1991 David Jurgens
INT 4A - RTC Alarm Handler Vector        - not a true interrupt, but a pointer to an alarm handler routine        - called by  INT 70  and enabled by INT 1A,6        - routine must exit via IRET
Esc or Alt-X to exit	int 4a	Home/PgUp/PgDn/End ←↑↓→