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Tagged with x86 protected-mode
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The move to protected mode on x86 [closed]
When I learned programming, the programmer of the CPU had direct memory access. That is, the Z80, the 8086/8088, 6502, and so on. I don't know of any real use of the 186, but at least the 286 ...
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Did any software attempt to perform 8086 emulation on the 80286 using LOADALL, in the vein of the later virtual 8086 mode of the 80386?
I know that Virtual 8086 mode was added on the 80386 to make it possible to run old applications in a Protected Mode environment.
The 80286 had a lot of shortcomings, such as not being able to switch ...
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Are .COM executable binaries real mode or protected mode?
Windows and DOS binary executable files with the .EXE extension have an MZ header in them and nowadays also a PE header.
But before these there used to also be .COM binary executable files and they ...
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How do you put a 286 in Protected Mode?
From the Art of Intel x86 Assembly, Page 149,
The 80386 added four control registers: CR0-CR3. These registers extend the msw registers of the 80286 [...]
The book says earlier that,
The 80286 ...
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