Leonard Erickson wrote in a message to All:

 LE> I've got a DOS program that I need to run that hogs the CPU. 
 LE> Setting idle sensitivity to 1 improves things greatly.

 LE> But I've got the source, and I'd like to make it more 
 LE> multi-tassking friendly. It looks like it's in a polling loop 
 LE> when it's hogging the CPU (basicly it's waiting for me to hit a 
 LE> key). 

 LE> I seem to recall that there's a DOS INT I can call that'll free 
 LE> up the rest of the timeslice. IE. change the code like this:

 LE> Old:

 LE>   Repeat
 LE>     ...
 LE>     X := keypressed;
 LE>     ...
 LE>   until keypressed or ....

 LE> New:

 LE>   Repeat
 LE>     ...
 LE>     X := keypressed;
 LE>     ...
 LE>     INT XX;
 LE>   until keypressed or ....

 LE> But I don't recall what the Int is.

For some reason 28 comes to mind,  though I'm not sure about that.  Do you
have a copy of Ralf Brown's interrupt list?  I'm *sure* it's in there
someplace,  but I don't program so I don't have anything set up here to search 
it.  I do have the files if you want 'em,  though...

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