--------H-M00000000--------------------------

MEM 0000h:0000h R - INTERRUPT VECTOR TABLE
Size:  1024 BYTEs

Note:  see also the main interrupt list
--------b-M0000031D--------------------------
MEM 0000h:031Dh - 1989 AMI 386sx BIOS - USER-DEFINABLE TYPE 47 HARD DISK PARMS
Size:  16 BYTEs

Note:  these fields are used if the AMI BIOS setup is set to use the top of
     the interrupt table for the extended BIOS data area

See Also: MEM 0000h:032Dh,INT 41
--------b-M0000032D--------------------------
MEM 0000h:032Dh - 1989 AMI 386sx BIOS - USER-DEFINABLE TYPE 48 HARD DISK PARMS
Size:  16 BYTEs

Note:  these fields are used if the AMI BIOS setup is set to use the top of
     the interrupt table for the extended BIOS data area

See Also: MEM 0000h:031Dh,INT 46
--------B-M00000400--------------------------
MEM 0000h:0400h - BIOS DATA AREA
Size:  256 BYTEs

Note:  see also the MEM 0040h:xxxxh entries
----------M00000500--------------------------
MEM 0000h:0500h - DATA AREA
Size:  256 BYTEs
--------D-M00000600--------------------------
MEM 0000h:0600h - MS-DOS 1.x LOAD ADDRESS
--------D-M00000700--------------------------
MEM 0000h:0700h - MS-DOS 2+ LOAD ADDRESS
--------S-M00400000--------------------------
MEM 0040h:0000h - BASE I/O ADDRESS OF FIRST SERIAL I/O PORT
Size:  WORD

Notes: the BIOS sets this word to zero if is unable to find any serial ports
     at the addresses it is programmed to check at boot
   DOS and BIOS serial device numbers may be redefined by re-assigning
     these values of the base I/O addresses stored here

See Also: MEM 0040h:0002h,MEM 0040h:0004h,MEM 0040h:0006h,MEM 0040h:0008h

See Also: MEM 0040h:007Ch,INT 14/AH=00h,PORT 03F8h"SERIAL"
--------S-M00400002--------------------------
MEM 0040h:0002h - BASE I/O ADDRESS OF SECOND SERIAL I/O PORT
Size:  WORD

Note:  the BIOS sets this word to zero if is unable to find more than one
     serial port at the addresses it is programmed to check at boot

See Also: MEM 0040h:0000h,MEM 0040h:0004h,MEM 0040h:0006h,MEM 0040h:000Ah

See Also: MEM 0040h:007Dh,INT 14/AH=00h,PORT 02F8h"SERIAL"
--------S-M00400004--------------------------
MEM 0040h:0004h - BASE I/O ADDRESS OF THIRD SERIAL I/O PORT
Size:  WORD

Note:  the BIOS sets this word to zero if is unable to find more than two
     serial ports at the addresses it is programmed to check at boot

See Also: MEM 0040h:0000h,MEM 0040h:0002h,MEM 0040h:0006h,MEM 0040h:000Ch

See Also: MEM 0040h:007Eh,PORT 03E8h"SERIAL"
--------S-M00400006--------------------------
MEM 0040h:0006h - BASE I/O ADDRESS OF FOURTH SERIAL I/O PORT
Size:  WORD

Note:  the BIOS sets this word to zero if is unable to find more than three
     serial ports at the addresses it is programmed to check at boot

See Also: MEM 0040h:0000h,MEM 0040h:0002h,MEM 0040h:0004h,MEM 0040h:0008h

See Also: MEM 0040h:007Fh,PORT 02E8h"SERIAL"
--------P-M00400008--------------------------
MEM 0040h:0008h - BASE I/O ADDRESS OF FIRST PARALLEL I/O PORT
Size:  WORD

Notes: the BIOS POST routine fills in the parallel port address fields in
     turn as it finds parallel ports.  All fields beyond the last one
     for which a valid parallel port was found are set to zero.
   the BIOS INT 17 handler uses these fields to address the parallel
     ports

See Also: MEM 0040h:0000h,MEM 0040h:000Ah,MEM 0040h:000Ch,INT 17/AH=00h

See Also: PORT 0278h"PRINTER",PORT 03BCh"PRINTER"
--------P-M0040000A--------------------------
MEM 0040h:000Ah - BASE I/O ADDRESS OF SECOND PARALLEL I/O PORT
Size:  WORD

Note:  zero if fewer than two parallel ports installed

See Also: MEM 0040h:0002h,MEM 0040h:0008h,MEM 0040h:000Ch,PORT 0278h"PRINTER"

See Also: PORT 0378h"PRINTER",INT 17/AH=00h
--------P-M0040000C--------------------------
MEM 0040h:000Ch - BASE I/O ADDRESS OF THIRD PARALLEL I/O PORT
Size:  WORD

Note:  zero if fewer than three parallel ports installed

See Also: MEM 0040h:0004h,MEM 0040h:0008h,MEM 0040h:000Ah,MEM 0040h:000Eh

See Also: PORT 0378h"PRINTER",INT 17/AH=00h
--------P-M0040000E--------------------------
MEM 0040h:000Eh - BASE I/O ADDRESS OF FOURTH PARALLEL I/O PORT (pre-PS/2)
Size:  WORD

Note:  zero if fewer than four parallel ports installed

See Also: MEM 0040h:0008h,MEM 0040h:000Ah,MEM 0040h:000Eh"BIOS DATA"

See Also: PORT 0378h"PRINTER",INT 17/AH=00h
--------B-M0040000E--------------------------
MEM 0040h:000Eh - SEGMENT OF EXTENDED BIOS DATA SEGMENT (PS/2, newer BIOSes)
Size:  WORD

See Also: MEM 0040h:000Eh"PARALLEL",INT 15/AH=C1h