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.The segment descriptor (8 bytes long in 80286) contains the following fields: 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.The segment descriptor (8 bytes long in 80286) contains the following fields: In x86-64, the code segment descriptor has the following form: