Int 2F Fn 4A10  - Smartdrv V4.00+ - Get Cache Size                         [c]

   AX = 4A10h
   BX = 0004h

Return: AX = current size in elements???
   BX = largest number of elements
   CX = size of elements in bytes
   DX = number of elements under Windows

Note:  this function is also supported by PC-Cache v8.0.

See Also: AX=4A10h/BX=0000h,AX=4A10h/BX=0003h,AX=4A10h/BX=0005h