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64bit DOS sample (Announce)

posted by Japheth(R) Homepage, Germany (South), 24.07.2009, 18:53

> Is it then possible to switch back to V86?

Yes.

> What structures have to be saved before to be able to succesfull restore?

There's nothing special. In fact, it's less complicated, because a VCPI client which switches to long mode won't need the VCPI mode switches and page tables for the first MB.

> I know nothing yeat about
> long mode, can you reccomend some simple tutrial about long mode?

I used the original Intel and/or AMD manuals. I don't know if they are good, but I was - hopefully - able to understand them.

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MS-DOS forever!

 

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