Format of User Palette Profile Table [VGA only]
Offset Size Description (Table M049)
00h BYTE Underlining: 01h=enable in all alphanumeric modes
00h=enable in monochrome alphanumeric modes only
FFh=disable in all alphanumeric modes
01h BYTE reserved
02h WORD reserved
04h WORD Number (0-17) of Attribute Controller registers in table
06h WORD Index (0-16) of first Attribute Controller register in table
08h DWORD ptr to table of Attribute Controller registers to override
Table is an array of BYTEs.
0Ch WORD Number (0-256) of video DAC Color registers in table
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
See Also: 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
See Also: 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 M050)
2 ??? (related to disk drives)
5 page tables set to allow Weitek addressing in real mode
6 Weitek math coprocessor present
----------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
See Also: 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
See Also: 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)
See Also: #0510,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 M051)
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
See Also: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00D6h"AMI"
See Also: 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
See Also: MEM 0040h:00D2h"AMI",MEM 0040h:00D6h"AMI",MEM 0040h:00D7h"AMI"
See Also: 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
See Also: MEM 0040h:00D8h"Digiboard"
--------b-M004000D6--------------------------
MEM 0040h:00D6h - AMI BIOS v1.00.12.AX1T - EPP - PARALLEL PORT 0 IRQ
Size: BYTE
See Also: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00D8h"AMI"
See Also: 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)
See Also: MEM 0040h:00D8h"EHD",MEM 0040h:00D9h"EHD",MEM 0040h:00DAh"EHD"
Bitfields for EHD diskette media state:
Bit(s) Description (Table M052)
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
See Also: MEM 0040h:00D2h"AMI",MEM 0040h:00D5h"AMI",MEM 0040h:00D6h"AMI"
See Also: MEM 0040h:00DDh"AMI"
--------M-M004000D8--------------------------
MEM 0040h:00D8h - Digiboard MV/4 - NUMBER OF MICE FOUND
Size: WORD
See Also: MEM 0040h:00D6h"Digiboard",MEM 0040h:00DAh"Digiboard"
--------d-M004000D8--------------------------
MEM 0040h:00D8h - EHD floppy - DRIVE 1 DISKETTE MEDIA STATE
Size: BYTE
See Also: 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
See Also: MEM 0040h:00D2h"AMI",MEM 0040h:00D6h"AMI",MEM 0040h:00D7h"AMI"
See Also: MEM 0040h:00DDh"AMI"
--------d-M004000D9--------------------------
MEM 0040h:00D9h - EHD floppy - DRIVE 2 DISKETTE MEDIA STATE
Size: BYTE
See Also: 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
See Also: MEM 0040h:00D8h"Digiboard"
--------d-M004000DA--------------------------
MEM 0040h:00DAh - EHD floppy - DRIVE 3 DISKETTE MEDIA STATE
Size: BYTE
See Also: 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
See Also: MEM 0040h:00DCh"Digiboard"
--------d-M004000DB--------------------------
MEM 0040h:00DBh - EHD floppy - DRIVE 0 NEEDS RECALIBARATION
Size: BYTE
See Also: 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
See Also: MEM 0040h:00DBh"Digiboard"