[OpenBIOS] Why protected mode?

[William Meyer]

>> 2) Go into protected mode for initial configuration, then exit it to load
>> the boot code (note that the BIOS service routines would have to run in
>> real mode in this case).
>
>This is how other BIOSs today do it. That is also how you have to do if
>you strive for IBM-PC BIOS compability.


And this continues the necessity for either a keyboard or a keyboard
simulator, does it not? My recollection is that the only way out of
protected mode (back in 286 days) was through a keyboard reset sequence.

William Meyer


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