Table of Contents

Note: This API call is for DOS and Win16 personality only. Use Family API for portability.

2018/09/07 05:04 · prokushev · 0 Comments

Int 21H, AH=2CH

Version

1 and higher

Brief

GET SYSTEM TIME

Family API

Input

      AH = 2Ch

Return

CH = hour

      CL = minute
      DH = second
      DL = 1/100 seconds

Notes

on most systems, the resolution of the system clock is about 5/100sec, so returned times generally do not increment by 1

on some systems, DL may always return 00h

See also

AH=2Ah,AH=2Dh,INT 1A/AH=00h,INT 1A/AH=02h,INT 1A/AH=FEh INT 2F/AX=120Dh

Note

Text based on Ralf Brown Interrupt List Release 61

2018/09/04 17:23 · prokushev · 0 Comments