📄 memory.lst
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0Eh WORD Index (0-255) of first video DAC Color register in table
10h DWORD ptr to table of video DAC Color registers to override
Table is ??? triplets ??? of BYTEs???
14h BYTEs array of mode values to which this profile is to pertain
BYTE FFh end of array
--------*-M004000AC--------------------------
MEM 0040h:00ACh - RESERVED
Size: 4 BYTEs
--------b-M004000B0--------------------------
MEM 0040h:00B0h - Phoenix 386 BIOS 1.10 10a - LOOP COUNT FOR HARD DISK TIMEOUT
Size: BYTE
Desc: number of times a tight software delay loop should be executed to
generate the sub-55ms delays used internally by the BIOS
Note: also used for delaying when beeping due to full keyboard buffer
SeeAlso: MEM 0040h:00ECh"Dell",INT 15/AH=BCh
--------d-M004000B0--------------------------
MEM 0040h:00B0h - PTR TO 3363 OPTICAL DISK DRIVER OR BIOS ENTRY POINT
Size: DWORD
Notes: When 3363 BIOS present, the ASCIZ signature "OPTIC "occurs 3 bytes
beyond this entry point
When 3363 BIOS and 3363 File System Driver present, the ASCIZ signature
"FILE SYSTEM DRIVER" occurs 3 bytes beyond this entry point
--------b-M004000B0--------------------------
MEM 0040h:00B0h - 1988 Phoenix 386 BIOS 1.10 03 - PARAMS FOR TYPE 48 HARD DISK
Size: 16 BYTEs
SeeAlso: INT 41,INT 46,MEM 0040h:00C0h"HARD DISK"
--------*-M004000B4--------------------------
MEM 0040h:00B4h - RESERVED
Size: WORD
--------b-M004000B5--------------------------
MEM 0040h:00B5h - Dell 4xxDE
Size: BYTE
Bitfields for Dell 4xxDE flags:
Bit(s) Description (Table M0050)
2 ??? (related to disk drives)
5 page tables set to allow Weitek addressing in real mode
6 Weitek math coprocessor present
--------b-M004000B5--------------------------
MEM 0040h:00B5h - Tandy BIOS DATA FLAGS
Size: BYTE
SeeAlso: MEM F000h:C000h
Bitfields for Tandy BIOS data flags:
Bit(s) Description (Table M0131)
0 set if drive A: is 720 Kb
1 set if drive B: is 720 Kb
2-7 unknown
Note: Before checking these bits, the Tandy ROM BIOS ID byte at F000h:C000h
should be verified to be equal to 21h.
---------------------------------------------
MEM 0040h:00E5h - Gigabyte AWARD v4.51PG - ASSOC DRIVE NUMS TO PHYS INTERFACES
Size: BYTE
SeeAlso: MEM 0040h:00E5h"AWARD"
Bitfields for drive number/interface mapping:
Bit(s) Description (Table M0129)
7-6 interface for drive 83h (F:)
00 primary master
01 primary slave
10 secondary master
11 secondary slave
5-4 interface for drive 82h (as for bits 7-6)
3-2 interface for drive 81h (as for bits 7-6)
1-0 interface for drive 80h (C:) (as for bits 7-6)
SeeAlso: #M0128
----------M004000B6--------------------------
MEM 0040h:00B6h - RESERVED FOR POST???
Size: 3 BYTEs
----------M004000B9--------------------------
MEM 0040h:00B9h - ???
Size: 7 BYTEs
--------b-M004000BC--------------------------
MEM 0040h:00BCh - 1993 Phoenix 486 BIOS 1.03 PCI - CPU TYPE/MASK REVISION
Size: WORD
Desc: the high byte contains the CPU type, the low byte the mask revision
(stepping level), as reported to the BIOS in DX by the CPU at startup
SeeAlso: INT 15/AH=C9h
--------b-M004000C0--------------------------
MEM 0040h:00C0h - 1988 Phoenix 386 BIOS 1.10 03 - PARAMS FOR TYPE 49 HARD DISK
Size: 16 BYTEs
SeeAlso: INT 41,INT 46,MEM 0040h:00B0h"HARD DISK"
--------*-M004000C0--------------------------
MEM 0040h:00C0h - RESERVED
Size: 14 BYTEs
--------K-M004000C2--------------------------
MEM 0040h:00C2h - AMI BIOS 1.00.12.AX1T - KEYBOARD TYPE
Size: WORD
Desc: this word contains an indication of the type of keyboard
(controller???) attached to the system
Note: AMI's APM code checks for 4147h vs. other value (5047h seen on Intel
"Plato" motherboard)
SeeAlso: #00586,INT 16/AH=F2h
--------b-M004000CE--------------------------
MEM 0040h:00CEh - COUNT OF DAYS SINCE LAST BOOT
Size: WORD
--------*-M004000D0--------------------------
MEM 0040h:00D0h - RESERVED
Size: 32 BYTEs
--------S-M004000D0--------------------------
MEM 0040h:00D0h - Digiboard MV/4 - LENGTH OF DATA TABLE
Size: BYTE
--------d-M004000D0--------------------------
MEM 0040h:00D0h EHD floppy - INSTALLATION FLAGS
Size: BYTE
Bitfields for EHD floppy installation flags:
Bit(s) Description (Table M0051)
4 installation completed
3-0 drives 0-3
--------b-M004000D0--------------------------
MEM 0040h:00D0h - AMI BIOS v1.00.12.AX1T - EPP - SCRATCH SPACE
Size: WORD
Desc: this word holds the value of BX during an EPP BIOS call
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00D6h"AMI"
SeeAlso: MEM 0040h:00DDh"AMI"
--------S-M004000D1--------------------------
MEM 0040h:00D1h - Digiboard MV/4 - PRODUCT ID
Size: BYTE
--------S-M004000D2--------------------------
MEM 0040h:00D2h - Digiboard MV/4 - BASE ADDRESS FOUND
Size: WORD
--------b-M004000D2--------------------------
MEM 0040h:00D2h - AMI BIOS v1.00.12.AX1T - EPP BASE I/O PORT
Size: WORD
--------S-M004000D4--------------------------
MEM 0040h:00D4h - Digiboard MV/4 - PORTS
Size: BYTE
--------S-M004000D5--------------------------
MEM 0040h:00D5h - Digiboard MV/4 - IRQ
Size: BYTE
--------d-M004000D5--------------------------
MEM 0040h:00D5h - EHD floppy - NUMBER OF FLOPPY DISK CONTROLLERS IN SYSTEM
Size: BYTE
--------b-M004000D5--------------------------
MEM 0040h:00D5h - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 0 CAPABILITIES
Size: BYTE
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00D6h"AMI",MEM 0040h:00D7h"AMI"
SeeAlso: MEM 0040h:00DCh"AMI"
--------d-M004000D6--------------------------
MEM 0040h:00D6h - EHD floppy - AND-BITS TO ADJUST PORT ADDRESS
Size: BYTE
Note: this byte contains FFh if controller at 03Fxh and 7Fh if at 037xh; the
value is ANDed with DL prior to using IN A?,DX or OUT DX,A?
instructions
--------K-M004000D6--------------------------
MEM 0040h:00D6h - Digiboard MV/4 - NUMBER OF KEYBOARDS FOUND
Size: WORD
SeeAlso: MEM 0040h:00D8h"Digiboard"
--------b-M004000D6--------------------------
MEM 0040h:00D6h - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 0 IRQ
Size: BYTE
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00D8h"AMI"
SeeAlso: MEM 0040h:00DDh"AMI"
--------d-M004000D7--------------------------
MEM 0040h:00D7h - EHD floppy - DRIVE 0 DISKETTE MEDIA STATE
Size: BYTE
Note: the value in this byte is copied into 0040h:0090h (diskette 0 status)
SeeAlso: MEM 0040h:00D8h"EHD",MEM 0040h:00D9h"EHD",MEM 0040h:00DAh"EHD"
Bitfields for EHD diskette media state:
Bit(s) Description (Table M0052)
7-6 data rate: 00=500kbps,01=300kbps,10=250k,11=1M/S
5 double stepping required (e.g. 360kB in 1.2MB)
4 media type established
3 reserved
2-0 on exit from BIOS, contains:
000 trying 360kB in 360kB
001 trying 360kB in 1.2MB
010 trying 1.2MB in 1.2MB
011 360kB in 360kB established
100 360kB in 1.2MB established
101 1.2MB in 1.2MB established
110 reserved (2M8?)
111 all other formats/drives
--------b-M004000D7--------------------------
MEM 0040h:00D7h - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 1 CAPABILITIES
Size: BYTE
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00D6h"AMI"
SeeAlso: MEM 0040h:00DDh"AMI"
--------M-M004000D8--------------------------
MEM 0040h:00D8h - Digiboard MV/4 - NUMBER OF MICE FOUND
Size: WORD
SeeAlso: MEM 0040h:00D6h"Digiboard",MEM 0040h:00DAh"Digiboard"
--------d-M004000D8--------------------------
MEM 0040h:00D8h - EHD floppy - DRIVE 1 DISKETTE MEDIA STATE
Size: BYTE
SeeAlso: MEM 0040h:00D7h"EHD",MEM 0040h:00D9h"EHD",MEM 0040h:00DAh"EHD"
--------b-M004000D8--------------------------
MEM 0040h:00D8h - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 1 IRQ
Size: BYTE
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00D6h"AMI",MEM 0040h:00D7h"AMI"
SeeAlso: MEM 0040h:00DDh"AMI"
--------b-M004000D8--------------------------
MEM 0040h:00D8h U - Phoenix BIOS 4.0 Rel 6.0 - POWER MANAGEMENT FLAGS
Size: BYTE
SeeAlso: INT 15/AX=5300h
--------d-M004000D9--------------------------
MEM 0040h:00D9h - EHD floppy - DRIVE 2 DISKETTE MEDIA STATE
Size: BYTE
SeeAlso: MEM 0040h:00D7h"EHD",MEM 0040h:00D8h"EHD",MEM 0040h:00DAh"EHD"
--------S-M004000DA--------------------------
MEM 0040h:00DAh - Digiboard MV/4 - CURRENT PORT (used by VGA initializatn only)
Size: BYTE
SeeAlso: MEM 0040h:00D8h"Digiboard"
--------d-M004000DA--------------------------
MEM 0040h:00DAh - EHD floppy - DRIVE 3 DISKETTE MEDIA STATE
Size: BYTE
SeeAlso: MEM 0040h:00D7h"EHD",MEM 0040h:00D8h"EHD",MEM 0040h:00D9h"EHD"
--------S-M004000DB--------------------------
MEM 0040h:00DBh - Digiboard MV/4 - MASTER 8259 MASK (used by VGA init only)
Size: BYTE
SeeAlso: MEM 0040h:00DCh"Digiboard"
--------d-M004000DB--------------------------
MEM 0040h:00DBh - EHD floppy - DRIVE 0 NEEDS RECALIBARATION
Size: BYTE
SeeAlso: MEM 0040h:00DCh"EHD",MEM 0040h:00DDh"EHD",MEM 0040h:00DEh"EHD"
--------S-M004000DC--------------------------
MEM 0040h:00DCh - Digiboard MV/4 - SLAVE 8259 MASK (used by VGA init only)
Size: BYTE
SeeAlso: MEM 0040h:00DBh"Digiboard"
--------b-M004000DC--------------------------
MEM 0040h:00DCh - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 0 MODE
Size: BYTE
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00DDh"AMI"
SeeAlso: INT 17/AX=0200h/BX=5050h
(Table M0053)
Values for AMI Enhanced Parallel Port mode:
01h compatibility mode
02h bi-directional mode
04h EPP mode
SeeAlso: #00637
--------d-M004000DC--------------------------
MEM 0040h:00DCh - EHD floppy - DRIVE 1 NEEDS RECALIBARATION
Size: BYTE
SeeAlso: MEM 0040h:00DBh"EHD",MEM 0040h:00DDh"EHD",MEM 0040h:00DEh"EHD"
--------b-M004000DC--------------------------
MEM 0040h:00DCh - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 1 MODE
Size: BYTE
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00DCh"AMI",#M0053
--------d-M004000DD--------------------------
MEM 0040h:00DDh - EHD floppy - DRIVE 2 NEEDS RECALIBARATION
Size: BYTE
SeeAlso: MEM 0040h:00DBh"EHD",MEM 0040h:00DCh"EHD",MEM 0040h:00DEh"EHD"
--------d-M004000DE--------------------------
MEM 0040h:00DEh - EHD floppy - DRIVE 3 NEEDS RECALIBARATION
Size: BYTE
SeeAlso: MEM 0040h:00DBh"EHD",MEM 0040h:00DCh"EHD",MEM 0040h:00DDh"EHD"
--------b-M004000DF--------------------------
MEM 0040h:00DFh - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT LOCK STATE
Size: BYTE
Note: set to 01h if last request was to lock a port, 00h if last request was
to unlock a port
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00DCh"AMI"
--------b-M004000E0--------------------------
MEM 0040h:00E0h - AMI BIOS v1.00.12.AX1T - EPP - REAL-TIME DEVICE COUNT
Size: BYTE
Desc: contains the number of advertised real-time devices as set by EPP
function 12h (see #00632)
SeeAlso: MEM 0040h:00D2h"AMI",MEM 0040h:00DFh"AMI"
--------b-M004000E0--------------------------
MEM 0040h:00E0h - Phoenix 386 BIOS - DRIVE PARAMETER TABLE FOR FIRST HARD DISK
Size: 16 BYTEs
Note: this area is used to store the driver parameter table for the first
hard disk if it has been setup as the user-configurable "type 47"
--------d-M004000E3--------------------------
MEM 0040h:00E3h - EHD floppy - DRIVE 0 DISKETTE TYPE (from jumpers)
Size: BYTE
SeeAlso: MEM 0040h:00E4h,MEM 0040h:00E5h"EHD",MEM 0040h:00E6h"EHD"
(Table M0054)
Values for EHD floppy diskette type:
01h undefined by diskette change (360K)
02h 1.2M
03h 720K
04h 1.44M
05h 2.88M
--------d-M004000E4--------------------------
MEM 0040h:00E4h - EHD floppy - DRIVE 1 DISKETTE TYPE (from jumpers)
Size: BYTE
SeeAlso: MEM 0040h:00E3h,MEM 0040h:00E5h"EHD",MEM 0040h:00E6h"EHD"
--------d-M004000E5--------------------------
MEM 0040h:00E5h - EHD floppy - DRIVE 2 DISKETTE TYPE (from jumpers)
Size: BYTE
SeeAlso: MEM 0040h:00E3h,MEM 0040h:00E4h"EHD",MEM 0040h:00E6h"EHD"
---------------------------------------------
MEM 0040h:00E5h - AWARD v4.51PG - ASSOC DRIVE NUMBERS TO PHYSICAL INTERFACES
Size: BYTE
SeeAlso: MEM 0040h:00B5h"Gigabyte"
Bitfields for drive number/interface mapping:
Bit(s) Description (Table M0128)
7-6 interface for drive 83h (F:)
00 primary master
01 primary slave
10 secondary master
11 secondary slave
5-4 interface for drive 82h (as for bits 7-6)
3-2 interface for drive 81h (as for bits 7-6)
1-0 interface for drive 80h (C:) (as for bits 7-6)
SeeAlso: #M0129
--------d-M004000E6--------------------------
MEM 0040h:00E6h - EHD floppy - DRIVE 3 DISKETTE TYPE (from jumpers)
Size: BYTE
SeeAlso: MEM 0040h:00E3h,MEM 0040h:00E4h"EHD",MEM 0040h:00E5h"EHD"
--------d-M004000EA--------------------------
MEM 0040h:00EAh - Omti controller - SEGMENT OF EXTENDED BIOS DATA AREA???
Size: WORD
Note: drive parameter tables stored in specified segment
--------b-M004000EC--------------------------
MEM 0040h:00ECh - Dell 4xxDE BIOS A11 - LOOP COUNT FOR DELAYS
Size: WORD
----------M004000F0--------------------------
MEM 0040h:00F0h - INTRA-APPLICATION COMMUNICATION AREA
Size: 16 BYTEs
--------B-M00500000--------------------------
MEM 0050h:0000h - PRINT-SCREEN STATUS
Size: BYTE
--------J-M00500001--------------------------
MEM 0050h:0001h - NEC PC-9800 series - SCREEN MODE
Size: BYTE
Note: if bit 3 ⌨️ 快捷键说明
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