duff@evax.arl.utexas.edu (Robert Duff) (01/23/91)
I could not find this in the FAQ to see if this has been answered before,
so please accept my apologies if it has:
I am trying to write an application that needs to run based on real time.
Unfortunately, my compiler, Turbo C 2.0, does not give enough time
resolution with function "clock". Therefore, I must using a counter
loop to achieve proper timing. My problem is that I want this application
to be portable, and the variation in processor speeds of different
computers causes faulty timing.
Is there a way to determine processor speed, in a relatively portable way,
from inside a program? I have looked at a list of standard MsDOS
interrupts and have found nothing.
Thanks for any help.
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Remeber the immortal words of Socrates | Robert Duff
who said: | Automation & Robotics Research
"I Drank WHAT!?" | Institute - (817) 794-5957
Chris Knight | duff@evax.uta.edurcollins@altos86.Altos.COM (Robert Collins) (01/24/91)
In article <1991Jan22.170156.14647@evax.arl.utexas.edu> duff@evax.arl.utexas.edu (Robert Duff) writes: > >Is there a way to determine processor speed, in a relatively portable way, >from inside a program? I have looked at a list of standard MsDOS >interrupts and have found nothing. > Yes there is. Set up a timing loop, and time CPU instructions that have a known execution (clock) time. -- "Worship the Lord your God, and serve him only." Mat. 4:10 Robert Collins UUCP: ...!sun!altos86!rcollins HOME: (408) 225-8002 WORK: (408) 432-6200 x4356