Int 13 Fn 30  u - Quickcache Ii V4.20 - Get Info                           [c]

   AH = 30h
   AL = what to get
       00h system info (see below)
       01h drive info (see below)
       02h access frequency (array of 30 words)
       03h drive index
       (array of 32 bytes indicating BIOS drive for DOS drive)
   DS:DX -> buffer for info

Return: AX = status (0000h successful, 8000h invalid info specifier)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
     Associates, Inc.

Format of system info:
Offset Size    Description
 00h   BYTE    flag: cache enabled
 01h   BYTE    flag: buffered writes enabled
 02h   BYTE    flag: buffered reads enabled
 03h   BYTE    flag: sounds enabled
 04h   BYTE    flag: autodismount enabled
 05h   BYTE    ???
 06h   BYTE    flag: ???
 07h   BYTE    flag: ???
 08h   BYTE    flag: "em_assigned"
 09h   BYTE    flag: emulated EMS
 0Ah   BYTE    single sector bonus
 0Bh   BYTE    "sticky_max"
 0Ch   BYTE    write sector bonus
 0Dh   BYTE    bonus threshold
 0Eh   WORD    flush interval
 10h   WORD    flush count
 12h   WORD    reserve pool size
 14h   WORD    remaining space in reserve pool
 16h   WORD    required free memory
 18h   WORD    total cache sectors
 1Ah   WORD    dirty cache sectors
 1Ch   BYTE    trace buffer size
 1Dh   BYTE    reserved (padding)

Format of drive info [16-element array, one element]:
Offset Size    Description
 00h   BYTE    DOS drive number
 01h   BYTE    BIOS drive number
 02h   BYTE    maximum sector number
 03h   BYTE    maximum head number
 04h   BYTE    read buffer size
 05h   BYTE    write buffer size
 06h   BYTE    last status
 07h   BYTE    flag: enabled
 08h   BYTE    flag: buffered write enabled
 09h   BYTE    flag: buffered read enabled
 0Ah   BYTE    flag: in use (drive info is valid)
 0Bh   BYTE    flag: cylinder flush
 0Ch   BYTE    reserved (padding)
 0Dh   BYTE    sectors per track
 0Eh   WORD    sector size
 10h   WORD    sectors assigned
 12h   WORD    dirty sectors
 14h   WORD    reserved sectors
 16h   WORD    number of read errors
 18h   WORD    number of write errors
 1Ah   DWORD   "rio_count"
 1Eh   DWORD   number of cache misses
 22h   DWORD   "wio_count"
 26h   DWORD   "dio_count"