DOS application which will run in XP OK

[Chris Holbrook]

I have to freshen up an old app (not written in BASIC!) which I want to run under DOS and XP. Currently the app works around a loop which checks the keyboard, comm ports, clock, etc and does a nice job - when run under MSDOS. Under XP, it hogs CPU because of this loop. Just wondering what is the optimal method with PBDOS for avoiding this scenario, as I'm considering a rewite in PB for DOS. The dead same code would have to run in MSDOS/DRDOS or as an XP console application.


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[Mike Doty]

are you looking for a sleep or idle replacement?

if answer = yes then
  http://www.powerbasic.com/support/pb...ead.php?t=1447 
else 
   'might help
   http://www.powerbasic.com/support/pb...read.php?t=280 
end if

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[this message has been edited by mike doty (edited april 13, 2006).]

[David J Walker]

Set the priority a bit lower?

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[Chris Holbrook]

Originally posted by David J Walker:
Set the priority a bit lower?

Thanks for the thought, I tried both lower settings. The "below normal" setting slightly increased the CPU, "low" reduced it from ~90% to ~85%.

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[Mike Doty]

curious if this solves the problem? http://www.powerbasic.com/support/pb...ead.php?t=1447

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[Mike Doty]

originally posted by mike doty:
curious if this solves the problem? http://www.powerbasic.com/support/pb...ead.php?t=1447 http://www.powerbasic.com/support/pb...read.php?t=604

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