gold@druil.UUCP (G. Terry Gold) (10/15/86)
1. Does anyone have the source to a memory resident clock utility?
2. Re: 1 I've tried writting this myself and can't seem to make it
work. I've written quite a few TSR programs, including several
that steal the timer interupt, but this one has me stumped.
I've found that I can't use the int 21H, 2cH function call because
the PC tech ref manual says that you should only use functions
below 9H. I've seen a way around this (make a copy of the stack)
but isn't there an easier way?
My next attempt was to read the port directly, but it always returns
a 0FH indicating (so my manual says) that it was being updated when
I tried to read it. I've done retrys and always get the 0FH.
Any ideas? (My end goal is a memory resident elapsed timer.)
Thanks,
--
ihnp4 \
Terry Gold AT&T ISL --- druil!gold
Denver, Colorado allegra / (303) 538-1135