INT 08 - IRQ0 - SYSTEM TIMER
Desc:   generated 18.2 times per second by channel 0 of the 8254 system timer,
this interrupt is used to keep the time-of-day clock updated
Notes:  programs which need to be invoked regularly should use INT 1C unless
they need to reprogram the timer while still keeping the time-of-day
clock running at the proper rate
default handler is at F000h:FEA5h in IBM PC and 100%-compatible BIOSes
may be masked by setting bit 0 on I/O port 21h
SeeAlso: INT 4A,INT 50"DESQview",INT 58"DoubleDOS",INT 70,INT 78"GO32"

See also: 1C

08 - IRQ0 - SYSTEM TIMER