Segment_descriptor
In memory addressing for Intel x86 computer architectures, segment descriptors are a part of the segmentation unit, used for translating a logical address to a linear address. Segment descriptors describe the memory segment referred to in the logical address.[1] The segment descriptor (8 bytes long in 80286 and later) contains the following fields:[2]
- A segment base address
- The segment limit which specifies the segment size
- Access rights byte containing the protection mechanism information
- Control bits