INT 13 - Super PC-Kwik v3.20+ - FLUSH CACHE
        AH = A1h
        SI = 4358h
Return: CF clear
        AH = 00h (v5.10)
Note:   PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
          Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
          corresponds to PC-Kwik v3.20)
SeeAlso: INT 16/AX=FFA5h/CX=FFFFh
Index:  PC-Cache|Qualitas Qcache

.