HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

              INT 1A - System and Real Time Clock BIOS Services

       For more informations, see the following topics:

       INT 1A,0   Read system clock counter
       INT 1A,1   Set system clock counter
       INT 1A,2   Read real time clock time (AT,PS/2)
       INT 1A,3   Set real time clock time (AT,PS/2)
       INT 1A,4   Read real time clock date (AT,PS/2)
       INT 1A,5   Set real time clock date (AT,PS/2)
       INT 1A,6   Set real time clock alarm (AT,PS/2)
       INT 1A,7   Reset real time clock alarm (PS/2)
       INT 1A,8   Set RTC activated power on mode (convertible,PS/2)
       INT 1A,9   Read RTC alarm time and status (convertible,PS/2)
       INT 1A,A   Read system day counter (PS/2)
       INT 1A,B   Set system day counter (PS/2)
       INT 1A,80  Set up sound multiplexer (PCjr only)

       - function is specified in register AH
       - see   RTC

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