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Is there a DOS memory documentation available? (Users)

posted by bretjohn Homepage E-mail, Rio Rancho, NM, 09.01.2024, 01:03

> However, 86 Mode isn't the only 16-bit mode. There is 16-bit Protected Mode
> since the 286, which allows to access the entire 16 MiB of the 286 address
> space, albeit only in 64 KiB chunks.
Actually, you can use 16-bit protected mode with 386+ CPU's to access the entire 4 GiB of memory, but still only in 64 kiB chunks. 16-bit PM code is nice because it is almost exactly the same as 16-bit real mode code (the only real difference being that you are using selectors instead of segments). This lets you avoid the need to switch between 16-bit code and 32-bit code.

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