This function's register format is the same as that required for Int 21H Function 2DH (Set Time).Obtains the time of day from the system real-time clock driver, converted to hours, minutes, seconds, and hundredths of seconds.
Call with:
AH = 2CH
Returns:
CH = hours (0 through 23)
CL = minutes (0 through 59)
DH = seconds (0 through 59)
DL = hundredths of seconds (0 through 99)
Notes:
This function's register format is the same as that required for Int 21H Function 2DH (Set Time).
On most IBM PC—compatible systems, the real-time clock does not have a resolution of single hundredths of seconds. On such machines, the values returned by this function in register DL are discontinuous.
Example:
Obtain the current time and save its two major components in the variables hours and minutes.
hours db 0
minutes db 0
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mov ah,2ch ; function number
int 21h ; transfer to MS-DOS
mov hours,ch ; save hours (byte)
mov minutes,cl ; save minutes (byte)
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