HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

         INT 1A,2 - Read Time From Real Time Clock  (XT 286,AT,PS/2)


       AH = 02


       on return:
       CF = 0 if successful
          = 1 if error, RTC not operating
       CH = hours in BCD
       CL = minutes in BCD
       DH = seconds in BCD
       DL = 1 if daylight savings time option


       - on AT with BIOS before 6/10/85, DL is not returned

Esc or Alt-X to exit int 1a,2 Home/PgUp/PgDn/End ←↑↓→
Converted to HTML in 2006 by Timo Bingmann