Int 2C Fn 0004  P - Rm386 V6.00 - Cloaking - Set Segment Access Mode       [m]

   AX = 0004h
   SI = selector
   CL = new access mode byte

Return: CF clear if successful
   CF set on error
       AX = error code (see AX=0000h)

See Also: AX=0000h,AX=0002h,AX=0003h,AX=0005h,INT 31/AX=0009h