Set Multiple Descriptors

Copies one or more descriptors from a client buffer into the
local descriptor table (LDT).

Call With:

   AX     = 000FH
   CX     = number of descriptors to copy
   ES:(E)DI= selector:offset of a buffer in the following
           format:

           Offset   Length   Contents
           00H      2        Selector #1
           02H      8        Descriptor #1
           0AH      2        Selector #2
           0CH      8        Descriptor #2
           .        .        .
           .        .        .
           .        .        .

Returns:

   if function successful
   Carry flag= clear

   if function unsuccessful
   Carry flag= set
   AX     = error code
           8021H   invalid value (access rights/type bytes
                   invalid)
           8022H   invalid selector 8025H    invalid linear
                   address (descriptor references a linear
                   address range outside that allowed for
                   DPMI clients)
   CX     = number of descriptors successfully copied

Notes:

o  If an error occurs because of an invalid selector or
   descriptor, the function returns the number of
   descriptors which were successfully copied in CX.  All of
   the descriptors which were copied prior to the one that
   failed are valid.  All descriptors from the invalid entry
   to the end of the table are not updated.
o  32-bit programs must use ES:EDI to point to the buffer.
   16-bit programs should use ES:DI.
o  A descriptor's access rights/type byte (byte 5) follows
   the same format and restrictions as the access
   rights/type parameter (in CL) for the Set Descriptor
   Access Rights function (Int 31H Fn 0009H).  On
   80386 (or later) machines, the descriptor's extended
   access rights/type byte (byte 6) follows the same format
   and restrictions as the extended access rights/type
   parameter (in CH) for the same function, except the
   low-order 4 bits (marked "reserved") are used to set the
   upper 4 bits of the descriptor's limit.
o  If the descriptor's present bit is not set, then the only
   error checking is that the client's CPL must be equal to
   the descriptor's DPL field and the "must be 1" bit in the
   descriptor's byte 5 must be set.
o  A DPMI 1.0 host will reload any segment register which
   contains a selector specified in the data structure
   supplied to this function.  It is suggested that DPMI 0.9
   hosts also implement this.
o  Refer to the rules for descriptor usage in Appendix D.