DG> TH> However, there are BIOS areas that an operating doesn't mess
DG> TH> with, and that's because it is very specific to the
DG> TH> hardware, ie. a particular motherboard chip set, or video
DG> TH> chep set, or a non-IDE interface like SCSI.
DG>Do you think that 32-bit operating systems like OS/2 and WinNT would
DG>use real mode BIOS calls? I would be amazed if they do; more likely
DG>they replace the entire BIOS routines with their own drivers, written
DG>specifically for the particular hardware.
About the only part of the BIOS that most "modern" (non-MS-DOS) O/S's will
still call directly after they are loaded is the Power_Management code (if
they support PM).
The O/S's will make a number of BIOS calls early in their loading to find out
what's in the system (like how much memory). But they quickly load in their
protected mode kernel. At that point, they switch the processor to protected
mode and leave the BIOS behind.
* KingQWK 1.05 # [PK] * WOMAN.ZIP...Good utility...no documentation
--- Maximus/2 3.01
---------------
* Origin: COMM Port OS/2 juge.com 204.89.247.1 (281) 980-9671 (1:106/2000)
|