LLDT         Load Local Descriptor Table (286/386)   Flags: O D I T S Z A P C
                                                                          
LLDT source

           Logic:        Local Descriptor Table . source

    This instruction loads a selector from source into the LIDTR
    register to specify a new local descriptor table. If the LIDTR
    register is loaded with 0, all LDT references result in a general
    protection fault.

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   Operands                   Clocks   Transfers  Bytes  Example
   LLDT register              17 (286)     2        3    LGDT AX
   LLDT memory                19 (286)     2        5    LGDT MY_DESCRIPTOR
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        Note:          This instruction is only available to processes
                       with a privilege level of 0.