Int 15 Fn DB01  U - Ami Bios - Flash Rom - Get Bios Subsystem Information  [b]

   AX = DB01h
   CL = BIOS subsystem information identifier (see #0469)

Return: CF clear if successful
       AX = 0000h
       ES:DI -> 56-byte record describing subsystem (see #0470)
   CF set on error
       AH = status
       01h nonexistent subsystem
       86h function not supported
       AL = 00h

Note:  used by FMUP.EXE, Intel's Flash Memory Update utility

See Also: AX=DB00h,AX=DB02h

(Table 0469)
Values for AMI BIOS subsystem identifier:
 00h   recovery code
 01h   system BIOS
 02h   PCI configuration data
 03h   OEM logo data area (see #0471)
 04h   system BIOS/Language Set (one system)
   configuration utility (another system)

See Also: #0470

Format of AMI BIOS subsystem information:
Offset Size    Description (Table 0470)
 00h   BYTE    subsystem identifier/logical area type (see #0469)
 01h   DWORD   subsystem (FlashROM page) size in bytes
 05h   BYTE    flag: loadable from file (FFh=yes)
 06h   BYTE    flag: reboot after update (FFh=yes)
 07h   BYTE    flag: update entire image (FFh=yes)
 08h 24 BYTEs  subsystem/logical area name
 20h   BYTE    subsystem identifier???
 21h   BYTE    flag: reprogrammable if FFh
 22h   BYTE    ??? (01h,02h seen)
 23h  5 BYTEs  ??? (apparently always 00h)
 28h 16 BYTEs  BIOS reserved string (usually version number)

See Also: #0468

Format of AMI OEM Logo data area:
Offset Size    Description (Table 0471)
 00h  8 BYTEs  signature
       "TEXTLOGO" if text-mode OEM logo
       8 DUP (FFh) if unused
 08h   WORD    offset of logo font definition table
 0Ah   WORD    offset of logo data
 0Ch   WORD    size of logo font table in words
 0Eh   WORD    offset of upper left corner of logo in video page
 10h   WORD    width of logo
 12h   WORD    height of logo
 14h   BYTE    reserved???
 var   var logo font definition (16 bytes per character)
 var   var logo data as character/attribute pairs

Note:  the attribute for the logo characters specifies which font will be used
     for that character.  If bit 3 is cleared, the normal system font is
     used; if bit 3 is set, the logo font is used, with screen colors
     adjusted to match the corresponding non-bright attribute for the
     system font

See Also: #0469,#0470