SHLD         Double Precision Shift Left (386)       Flags: O D I T S Z A P C
                                                            ?       * * ? * *
SHLD operand1, operand2, count

           Logic:        operand1|operand2 . SHL(operand1|operand2,count)

     SHLD is a double precision shift left instruction.

     This instruction takes three operands. Taken together, the first two
     operands (operand1 and operand2) form a 32-bit or 64-bit entity,
     OP. The third operand, 8 bits long, is the count. SHLD shifts OP left
     by count places.

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   Operands                   Clocks   Transfers  Bytes  Example
   SHLD reg,reg,immediate8    3 (386)      -        5    SHLD BX,CX,5
   SHLD memory,reg,immediate8 7 (386)      -        6    SHLD MEM_LOC,DX,6
   SHLD reg,reg,CL            3 (386)      -        4    SHLD BX,DX,CL
   SHLD memory,CL             7 (386)      -        5    SHLD MEM_LOC,DX,CL
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        Note:          count may be stored in CL.