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by f393921
3615 days ago
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I believe this is it:
https://blogs.msdn.microsoft.com/larryosterman/2005/02/08/fa... The IBM way required IBM BIOS and an absurdly long time (as I recalled it was hundreds of milliseconds, not just milliseconds) to re-enter real mode. The motivation was to be able to run DOS real-mode programs as well as protected mode programs. |
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