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Questions tagged [segmentation]

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8
votes
1answer
1k views

Which operating systems for 80286 computers allowed a process to use more than 128k data?

Out of all the operating systems for the 80286 processor I found, only two make use of the protected mode's ability to load more than one segment for text and one for data. These are MS-DOS (through ...
38
votes
7answers
8k views

Why didn't the 8086 use linear addressing?

The 8086 used a segmented memory architecture where the linear address was computed from a 16-bit segment number and a 16-bit offset. This greatly complicated things from a programming perspective. ...
3
votes
4answers
539 views

Was there ever a compiler type that was just large enough to contain a memory segment?

From this answer, Hark back to the days of segmented 16-bit architectures for example: an array might be limited to a single segment (so a 16-bit size_t would do) BUT you could have multiple ...