Int 2F Fn 1500  U - Cdblitz V2.11 - Disable Cache                          [c]

   AX = 1500h
   CH = 93h (function number)
   BX = 1234h (magic value for CDBLITZ)

Return: CF clear

See Also: AX=1500h/CH=90h,AX=1500h/CH=92h,AX=1500h/CH=95h