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the tables exist in memorythe registers point to the tables
A selector is an index into a descriptor table. Selectors are generally loaded into the segment registers by whoever set up the descriptor tables, and the contents of the segment registers can be changed as the program executes.
Quote from: MichaelW on June 01, 2012, 03:47:34 AMA selector is an index into a descriptor table. Selectors are generally loaded into the segment registers by whoever set up the descriptor tables, and the contents of the segment registers can be changed as the program executes.butif segment registers can be changed as the program executes(by the task itself)this mean that, the task can load any LDT,then the task can access a segment of other tasks!!!