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Interrup and Pmode

Posted: Fri May 24, 2002 7:24 am
by cobrab
It is posible to use my real mode interrupts in Pmode, or it?s necesary to create other?

The bios interrup it?s accesible in Pmode?

Re:Interrup and Pmode

Posted: Fri May 24, 2002 8:34 am
by Tim
You have two options: either write a V86-mode monitor in your kernel, and execute BIOS interrupts inside there, or re-implement the functionality you need from the BIOS. It is usually considered easier (and better, from a performance point of view) to re-write the BIOS services inside your OS.

Re:Interrup and Pmode

Posted: Fri May 24, 2002 8:51 am
by cobrab
Tim Robinson:

How is V86-Mode monitor? ???

In the case to reimplement the functionality of a BIOS, I want to create same interrupts?

Thanks

Re:Interrup and Pmode

Posted: Fri May 24, 2002 9:19 am
by ASHLEY4
Try to get hold of the source code,for a DPMI exstender like cwsdpmi or go32-v2,as these use both methods 8)

\\\///
(@@)
ASHLEY4.

Re:Interrup and Pmode

Posted: Fri May 24, 2002 9:36 am
by cobrab
Thank ASHLEY4