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Int 08 - IRQ0 - System Timer [H]
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
See Also: INT 1C,INT 4A,INT 50"DESQview",INT 58"DoubleDOS",INT 70,INT 78"GO32"
See Also: INT D8"Screen Thief"
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