🚀 go-pugleaf

Hai programmers,

I've made a simple Screen Saver. I'd like the program to work
with both DOS and Windows programs. So I hooked it to the
timer interrupt (0x1c). Every time this interrupt is generated
(18.2 times a sec.) it checks the SHIFT status (scancode).
If both SHIFT keys are pressed, the screen blanks, if some
other key (SHIFT/ALT/CTRL) is pressed the screen unblankes.

The program has to check some things every time it's called.
Can this slow down my machine too much? Can my clock start
to run too slow (clock = DOS clock)? It's not so easy to
test (my machine is quite fast). I couldn't notice any
difference, not even when blanking/unblanking very fast and
frequent.

I don't think it's a problem, but I wanna be sure.


Thanks in advance,		Erik Stel (estel@cs.vu.nl)