Mail Archives: djgpp/1997/04/22/03:19:40
> the Idle interrupt, Int 28h. A TSR should hook that interrupt if it
> needs to be able to pop up during this time. Note that for DJGPP
> programs, the complication here is that Int 28h is a *software* interrupt
> and therefore is not reflected to protected mode by the DPMI host.
In this case you allocate a RMCB (real mode callback) and replace int 28h
with this value. This will cause a call to your PM code whenever int 28h
was called. You could also use RMCBs to install a RM entry to your PM
code - so you can essentially do everything in a PM TSR as you could in
a RM one (theoretically).
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