Revision as of 06:05, 28 July 2017 view source osdev>Eladashkcenazi335 →‎Survival Glossary ← Older edit		Revision as of 14:45, 21 November 2017 view source osdev>Tomyfer m Corrected the "Selector" description in the "Survival Glossary" Newer edit →
Line 11: : a register of your CPU that refers to a segment for a special use (e.g. <tt>SS</tt>, <tt>CS</tt>, <tt>DS</tt> ...) ; Selector : a reference to a descriptor you can load into a segment register; the selector is an offset of a descriptor table entry. These entries are 8 bytes long. ~~Therefor~~Therefore, bits 3 and up only ~~declares~~declare the descriptor table entry offset , while bit 2 specifies if this selector is a GDT or LDT ~~seloctor ,~~selector (LDT - bit set , GDT - bit cleared), and bits 0 - 1 ~~declares~~declare the ring level that needs to corespond to the descriptor table entry's DPL ~~feild~~field. ,If ifit itdoesn'st, ~~not then~~a General Protection Fault ~~occur ,~~occurs; if it's does corespond then the CPL level of the selector used changed ~~accordinally~~accordingly. ; Descriptor : a memory structure (part of a table) that tells the CPU the attributes of a given segment

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