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INTERRUP.B
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1997-06-29
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Interrupt List, part 2 of 16
Copyright (c) 1989,1990,1991,1992,1993,1994,1995,1996,1997 Ralf Brown
--------B-1300-------------------------------
INT 13 - DISK - RESET DISK SYSTEM
AH = 00h
DL = drive (if bit 7 is set both hard disks and floppy disks reset)
Return: AH = status (see #0159)
CF clear if successful (returned AH=00h)
CF set on error
Note: forces controller to recalibrate drive heads (seek to track 0)
for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
both the master drive and the slave drive respond to the Reset
function that is issued to either drive
SeeAlso: AH=0Dh,AH=11h,INT 21/AH=0Dh,INT 4D/AH=00h"TI Professional"
SeeAlso: INT 56"Tandy 2000"
--------B-1301-------------------------------
INT 13 - DISK - GET STATUS OF LAST OPERATION
AH = 01h
DL = drive (bit 7 set for hard disk)
Return: CF clear if successful (returned status 00h)
CF set on error
AH = status of previous operation (see #0159)
Note: some BIOSes return the status in AL; the PS/2 Model 30/286 returns the
status in both AH and AL
SeeAlso: AH=00h,INT 4D/AH=01h,MEM 0040h:0074h
(Table 0159)
Values for disk operation status:
00h successful completion
01h invalid function in AH or invalid parameter
02h address mark not found
03h disk write-protected
04h sector not found/read error
05h reset failed (hard disk)
05h data did not verify correctly (TI Professional PC)
06h disk changed (floppy)
07h drive parameter activity failed (hard disk)
08h DMA overrun
09h data boundary error (attempted DMA across 64K boundary or >80h sectors)
0Ah bad sector detected (hard disk)
0Bh bad track detected (hard disk)
0Ch unsupported track or invalid media
0Dh invalid number of sectors on format (PS/2 hard disk)
0Eh control data address mark detected (hard disk)
0Fh DMA arbitration level out of range (hard disk)
10h uncorrectable CRC or ECC error on read
11h data ECC corrected (hard disk)
20h controller failure
31h no media in drive (IBM/MS INT 13 extensions)
32h incorrect drive type stored in CMOS (Compaq)
40h seek failed
80h timeout (not ready)
AAh drive not ready (hard disk)
B0h volume not locked in drive (INT 13 extensions)
B1h volume locked in drive (INT 13 extensions)
B2h volume not removable (INT 13 extensions)
B3h volume in use (INT 13 extensions)
B4h lock count exceeded (INT 13 extensions)
B5h valid eject request failed (INT 13 extensions)
BBh undefined error (hard disk)
CCh write fault (hard disk)
E0h status register error (hard disk)
FFh sense operation failed (hard disk)
SeeAlso: #M022
--------B-1302-------------------------------
INT 13 - DISK - READ SECTOR(S) INTO MEMORY
AH = 02h
AL = number of sectors to read (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer
Return: CF set on error
if AH = 11h (corrected ECC error), AL = burst length
CF clear if successful
AH = status (see #0159)
AL = number of sectors transferred (only valid if CF set for some
BIOSes)
Notes: errors on a floppy may be due to the motor failing to spin up quickly
enough; the read should be retried at least three times, resetting
the disk with AH=00h between attempts
most BIOSes support "multitrack" reads, where the value in AL
exceeds the number of sectors remaining on the track, in which
case any additional sectors are read beginning at sector 1 on
the following head in the same cylinder; the CONFIG.SYS command
MULTITRACK can be used to force DOS to split disk accesses which
would wrap across a track boundary into two separate calls
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
under Windows95, a volume must be locked (see INT 21/AX=440Dh/CX=084Bh)
in order to perform direct accesses such as INT 13h reads and writes
SeeAlso: AH=03h,AH=0Ah,AH=06h"V10DISK.SYS",AH=21h"PS/1",AH=42h"IBM"
SeeAlso: INT 21/AX=440Dh/CX=084Bh,INT 4D/AH=02h
--------B-1303-------------------------------
INT 13 - DISK - WRITE DISK SECTOR(S)
AH = 03h
AL = number of sectors to write (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer
Return: CF set on error
CF clear if successful
AH = status (see #0159)
AL = number of sectors transferred
(only valid if CF set for some BIOSes)
Notes: errors on a floppy may be due to the motor failing to spin up quickly
enough; the write should be retried at least three times, resetting
the disk with AH=00h between attempts
most BIOSes support "multitrack" writes, where the value in AL
exceeds the number of sectors remaining on the track, in which
case any additional sectors are written beginning at sector 1 on
the following head in the same cylinder; the CONFIG.SYS command
MULTITRACK can be used to force DOS to split disk accesses which
would wrap across a track boundary into two separate calls
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
under Windows95, an application must issue a physical volume lock on
the drive via INT 21/AX=440Dh before it can successfully write to
the disk with this function
SeeAlso: AH=02h,AH=0Bh,AH=07h"V10DISK.SYS",AH=22h"PS/1",AH=43h"IBM"
SeeAlso: INT 21/AX=440Dh"DOS 3.2+",INT 4D/AH=03h
--------B-1304-------------------------------
INT 13 - DISK - VERIFY DISK SECTOR(S)
AH = 04h
AL = number of sectors to verify (must be nonzero)
CH = low eight bits of cylinder number
CL = sector number 1-63 (bits 0-5)
high two bits of cylinder (bits 6-7, hard disk only)
DH = head number
DL = drive number (bit 7 set for hard disk)
ES:BX -> data buffer (PC,XT,AT with BIOS prior to 11/15/85)
Return: CF set on error
CF clear if successful
AH = status (see #0159)
AL = number of sectors verified
Notes: errors on a floppy may be due to the motor failing to spin up quickly
enough; the write should be retried at least three times, resetting
the disk with AH=00h between attempts
this function does not compare the disk with memory, it merely
checks whether the sector's stored CRC matches the data's actual CRC
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
SeeAlso: AH=02h,AH=44h,INT 4D/AH=04h,INT 4D/AH=06h
--------B-1305-------------------------------
INT 13 - FLOPPY - FORMAT TRACK
AH = 05h
AL = number of sectors to format
CH = track number
DH = head number
DL = drive number
ES:BX -> address field buffer (see #0160)
Return: CF set on error
CF clear if successful
AH = status (see #0159)
Notes: on AT or higher, call AH=17h first
the number of sectors per track is read from the diskette parameter
table pointed at by INT 1E
SeeAlso: AH=05h"FIXED",AH=17h,AH=18h,INT 1E
Format of floppy format address field buffer entry (one per sector in track):
Offset Size Description (Table 0160)
00h BYTE track number
01h BYTE head number (0-based)
02h BYTE sector number
03h BYTE sector size (00h=128 bytes, 01h=256 bytes, 02h=512, 03h=1024)
--------B-1305-------------------------------
INT 13 - FIXED DISK - FORMAT TRACK
AH = 05h
AL = interleave value (XT-type controllers only)
ES:BX -> 512-byte format buffer
the first 2*(sectors/track) bytes contain F,N for each sector
F = sector type
00h for good sector
20h to unassign from alternate location
40h to assign to alternate location
80h for bad sector
N = sector number
CH = cylinder number (bits 8,9 in high bits of CL)
CL = high bits of cylinder number (bits 7,6)
DH = head
DL = drive
Return: CF set on error
CF clear if successful
AH = status code (see #0159)
Notes: AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
for XT-type controllers on an AT or higher, AH=0Fh should be called
first
the IBM AT BIOS and many other BIOSes use only the low four bits of
DH (head number) since the WD-1003 controller which is the standard
AT controller (and the controller that IDE emulates) only supports
16 heads
not all controller support sector types 20h and 40h
under Windows95, an application must issue a physical volume lock on
the drive via INT 21/AX=440Dh before it can successfully write to
the disk with this function
SeeAlso: AH=05h"FLOPPY",AH=06h"FIXED",AH=07h"FIXED",AH=0Fh,AH=18h,AH=1Ah
--------d-1305-------------------------------
INT 13 - Future Domain SCSI BIOS - SEND SCSI MODE SELECT COMMAND
AH = 05h
DL = hard drive ID
ES:BX -> mode select data (see #0161)
Return: CF set on error
CF clear if successful
AH = status code (see #0159)
Notes: this function can be called before AH=07h"SCSI" or AH=06h"SCSI" to
format a SCSI disk with the desired parameters
the mode select data below is from the SCSI-1 specification
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=06h"SCSI",AH=07h"SCSI",INT 4F/AX=8100h
Format of Future Domain SCSI mode select data:
Offset Size Description (Table 0161)
00h BYTE number of bytes of remaining data (12 + vendor unique length)
01h BYTE reserved (0)
02h BYTE medium type (0 for hard disk)
03h BYTE reserved (0)
04h BYTE block descriptor length (8)
05h BYTE density code (0 for hard disk)
06h 3 BYTEs (big-endian) number of blocks (000000h for entire disk)
09h BYTE reserved (0)
0Ah 3 BYTEs (big-endian) block length (512 standard, or 256)
0Dh ??? vendor-specific parameter bytes (optional)
--------d-13057FSI324D-----------------------
INT 13 - 2M - FORMAT TRACK
AX = 057Fh
SI = 324Dh ("2M")
CH = track number
DH = head number
DL = drive number
ES:BX -> boot sector of future 2M diskette
Return: CF set on error
CF clear if successful
AH = status (see #0159)
Program: 2M is a TSR developed by Ciriaco Garcia de Celis to support
non standard diskettes with 820-902/1476-1558K (5.25 DD/HD)
and 984-1066/1804-1886K/3608-3772K (3.5 DD/HD/ED)
Notes: it is not necessary to call AH=17h or AH=18h first (will be ignored)
the diskette format must always begin on cylinder 0 head 0
the boot sector can be obtained from an already-formatted 2M diskette
(by calling AH=02h with head number 00h in 2M v1.x and with head
number 80h for 2M v2+)
the installation check for 2M must search for a "CiriSOFT:2M:1.3" or
"CiriSOFT:2MX:3.0" or similar (recomended ":2M:", ":2MX:", or ":2MB:"
substrings) in CiriSOFT TSR interface
since 2M v2.0, the BOOT sector is emulated using the first physical
sector of FAT2; the second-sixth physical sectors of FAT2 in HD or ED
diskettes store the SuperBOOT code. To skip the FAT2 emulation (using
FAT1) of 2M, in order to read the SuperBOOT code, head number must be
80h-81h instead 0-1 (bit 7 active) in standard read/write functions.
This lets diskcopy programs format 2M target diskettes copying
SuperBOOT code. If the target diskette is already 2MF formatted
(containing boot code) this trick it is not necessary.
when using STV technology (offset 65 of boot sector equal to 1) it is
necessary to write the full track before formatting (except track 0
side 0) to complete the format and skip future CRC errors on read; in
track 0 side 1 the head used must be 81h instead 1. Diskcopy programs
may do a format-write-verify sequential phases to improve performance
SeeAlso: AH=05h"FLOPPY",AH=18h/CX=5055h,INT 2F"CiriSOFT"
--------B-1306-------------------------------
INT 13 - FIXED DISK - FORMAT TRACK AND SET BAD SECTOR FLAGS (XT,PORT)
AH = 06h
AL = interleave value
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
Return: AH = status code (see #0159)
Note: AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
SeeAlso: AH=05h"FIXED",AH=07h"FIXED"
--------d-1306-------------------------------
INT 13 - Future Domain SCSI BIOS - FORMAT DRIVE WITH BAD SECTOR MAPPING
AH = 06h
AL = interleave
(0 = default, 1 = consecutive sectors, 2 - 255 = vendor unique)
DL = hard drive ID
DH = defect list info (see #0162)
ES:BX -> defect table A, B or C (see #0163,#0164,#0165)
Return: CF set on error
CF clear if successful
AH = status code (see #0159)
Notes: block addresses must be in ascending order (for table B, cylinder is
most significant, byte from index least significant; for table C,
cylinder is most significant, sector number least significant)
table B defect bytes from index of FFFFFFFFh indicates that the entire
track shall be reassigned
table C defect sector number of FFFFFFFFh indicates that the entire
track shall be reassigned
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=05h"SCSI",AH=06h"FIXED",AH=07h"SCSI"
Bitfields for Future Domain SCSI defect list info:
Bit(s) Description (Table 0162)
7-5 drive LUN
4 defect list is available
3 defect list is complete (erase drive's defect list)
2-0 defect table format
(000=use defect table A, 100=use defect table B,
101=use defect table C)
Format of Future Domain SCSI defect table A:
Offset Size Description (Table 0163)
00h WORD number of bytes remaining in table
02h BYTE reserved (0)
03h BYTE reserved (0)
04h WORD (big-endian) defect list length (4*number of defects)
06h 4 DWORDs (big-endian) defect block addresses
Format of Future Domain SCSI defect table B:
Offset Size Description (Table 0164)
00h WORD number of bytes remaining in table
02h BYTE reserved (0)
03h BYTE reserved (0)
04h WORD (big-endian) defect list length (8*number of defects)
06h 8N BYTEs defect list [array] (see #0166)
Format of Future Domain SCSI defect table C:
Offset Size Description (Table 0165)
00h WORD number of bytes remaining in table
02h BYTE reserved (0)
03h BYTE reserved (0)
04h WORD (big-endian) defect list length (8*number of defects)
06h 8N BYTEs defect list [array] (see #0166)
Format of Future Domain SCSI defect list entry:
Offset Size Description (Table 0166)
00h 3 BYTEs (big-endian) cylinder number of defect
03h BYTE head number of defect
04h DWORD (big-endian) defect bytes from index
--------d-1306-------------------------------
INT 13 - Adaptec AHA-154xA/Bustek BT-542 BIOS - IDENTIFY SCSI DEVICES
AH = 06h
Return: AH = status code (see #0159)
CF clear if successful
AL = first drive supported
(80h nonconcurrent operation, 81h concurrent operation)
CF set on error
Desc: determine the number of the first supported SCSI drive
Note: the return value is 80h when two SCSI drives are supported, 81h if
only one SCSI drive is installed
SeeAlso: AH=08h"PC",#0649 at INT 1A/AX=B102h
--------d-1306-------------------------------
INT 13 - V10DISK.SYS - READ DELETED SECTORS
AH = 06h
AL = number of sectors
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
ES:BX -> buffer
Return: AH = status code (see #0159)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
SeeAlso: AH=02h,AH=07h"V10DISK.SYS"
--------B-1307-------------------------------
INT 13 - FIXED DISK - FORMAT DRIVE STARTING AT GIVEN TRACK (XT,PORT)
AH = 07h
AL = interleave value (XT only)
ES:BX = 512-byte format buffer (see AH=05h)
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
Return: AH = status code (see #0159)
Note: AWARD AT BIOS and AMI 386sx BIOS have been extended to handle more
than 1024 cylinders by placing bits 10 and 11 of the cylinder number
into bits 6 and 7 of DH
SeeAlso: AH=05h"FIXED",AH=06h"FIXED",AH=1Ah
--------d-1307-------------------------------
INT 13 - Future Domain SCSI BIOS - FORMAT DRIVE
AH = 07h
AL = interleave (0 = default, 1 = consecutive sectors,
2 - 255 = vendor unique)
DL = hard drive ID
Return: CF set on error
CF clear if successful
AH = status code (see #0159)
SeeAlso: AH=05h"SCSI",AH=06h"SCSI",AH=07h"FIXED"
--------d-1307-------------------------------
INT 13 - V10DISK.SYS - WRITE DELETED SECTORS
AH = 07h
AL = number of sectors
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
ES:BX -> buffer
Return: AH = status code (see #0159)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
SeeAlso: AH=03h,AH=06h"V10DISK.SYS"
--------B-1308-------------------------------
INT 13 - DISK - GET DRIVE PARAMETERS (PC,XT286,CONV,PS,ESDI,SCSI)
AH = 08h
DL = drive (bit 7 set for hard disk)
Return: CF set on error
AH = status (07h) (see #0159)
CF clear if successful
AH = 00h
BL = drive type (AT/PS2 floppies only) (see #0167)
CH = low eight bits of maximum cylinder number
CL = maximum sector number (bits 5-0)
high two bits of maximum cylinder number (bits 7-6)
DH = maximum head number
DL = number of drives
ES:DI -> drive parameter table (floppies only)
Notes: may return successful even though specified drive is greater than the
number of attached drives of that type (floppy/hard); check DL to
ensure validity
for systems predating the IBM AT, this call is only valid for hard
disks, as it is implemented by the hard disk BIOS rather than the
ROM BIOS
Toshiba laptops with HardRAM return DL=02h when called with DL=80h,
but fail on DL=81h. The BIOS data at 40h:75h correctly reports 01h.
may indicate only two drives present even if more are attached; to
ensure a correct count, one can use AH=15h to scan through possible
drives
for BIOSes which reserve the last cylinder for testing purposes, the
cylinder count is automatically decremented
on PS/1s with IBM ROM DOS 4, nonexistent drives return CF clear,
BX=CX=0000h, and ES:DI = 0000h:0000h
SeeAlso: AH=06h"Adaptec",AH=13h"SyQuest",AH=48h,AH=15h,INT 1E
SeeAlso: INT 41"HARD DISK 0"
(Table 0167)
Values for diskette drive type:
01h 360K
02h 1.2M
03h 720K
04h 1.44M
05h ??? (reportedly an obscure drive type shipped on some IBM machines)
2.88M on some machines (at least AMI 486 BIOS)
06h 2.88M
10h ATAPI Removable Media Device
--------d-1308-------------------------------
INT 13 - V10DISK.SYS - SET FORMAT
AH = 08h
AL = number of sectors
CH = cylinder number (bits 8,9 in high bits of CL)
CL = sector number
DH = head
DL = drive
Return: AH = status code (see #0159)
Program: V10DISK.SYS is a driver for the Flagstaff Engineering 8" floppies
Note: details not available
SeeAlso: AH=03h,AH=06h"V10DISK.SYS"
--------y-130800DLF0-------------------------
INT 13 - SecureDrive - INSTALLATION CHECK
AX = 08000h
DL = F0h
Return: AX = EDCBh for version 1.0-1.2
AX = EDCCh for version 1.3
CX = code segment
DX = data address within code segment
Program: SecureDrive by Mike Ingle <mikeingle@delphi.com> allows you to create
an encrypted partition on your harddisk.
--------B-1309-------------------------------
INT 13 - HARD DISK - INITIALIZE CONTROLLER WITH DRIVE PARAMETERS (AT,PS)
AH = 09h
DL = drive (80h for first, 81h for second)
Return: CF clear if successful
CF set on error
AH = status (see #0159)
Notes: on the PC and XT, this function uses the parameter table pointed at by
INT 41
on the AT and later, this function uses the parameter table pointed at
by INT 41 if DL=80h, and the parameter table pointed at by INT 46 if
DL=81h
SeeAlso: INT 41"HARD DISK 0",INT 46"HARD DISK 1"
--------B-130A-------------------------------
INT 13 - HARD DISK - READ LONG SECTOR(S) (AT and later)
AH = 0Ah
AL = number of sectors (01h may be only value supported)
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second)
ES:BX -> data buffer
Return: CF clear if successful
CF set on error
AH = status (see #0159)
AL = number of sectors transferred
Notes: this function reads in four to seven bytes of error-correcting code
along with each sector's worth of information
data errors are not automatically corrected, and the read is aborted
after the first sector with an ECC error
used for diagnostics only on PS/2 systems; IBM officially classifies
this function as optional
SeeAlso: AH=02h,AH=0Bh,MEM 0040h:0074h
--------B-130B-------------------------------
INT 13 - HARD DISK - WRITE LONG SECTOR(S) (AT and later)
AH = 0Bh
AL = number of sectors (01h may be only value supported)
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second)
ES:BX -> data buffer
Return: CF clear if successful
CF set on error
AH = status (see #0159)
AL = number of sectors transferred
Notes: each sector's worth of data must be followed by four to seven bytes of
error-correction information
used for diagnostics only on PS/2 systems; IBM officially classifies
this function as optional
SeeAlso: AH=03h,AH=0Ah,MEM 0040h:0074h
--------B-130C-------------------------------
INT 13 - HARD DISK - SEEK TO CYLINDER
AH = 0Ch
CH = low eight bits of cylinder number
CL = sector number (bits 5-0)
high two bits of cylinder number (bits 7-6)
DH = head number
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #0159)
SeeAlso: AH=00h,AH=02h,AH=0Ah,AH=47h
--------B-130D-------------------------------
INT 13 - HARD DISK - RESET HARD DISKS
AH = 0Dh
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #0159)
Notes: reinitializes the hard disk controller, resets the specified drive's
parameters, and recalibrates the drive's heads (seek to track 0)
for PS/2 35SX, 35LS, 40SX and L40SX, as well as many other systems,
both the master drive and the slave drive respond to the Reset
function that is issued to either drive
not for PS/2 ESDI drives
SeeAlso: AH=00h,INT 21/AH=0Dh
--------B-130E-------------------------------
INT 13 - HARD DISK - READ SECTOR BUFFER (XT only)
AH = 0Eh
DL = drive number (80h = first, 81h = second hard disk)
ES:BX -> buffer
Return: CF set on error
CF clear if successful
AH = status code (see #0159)
Notes: transfers controller's sector buffer. No data is read from the drive
used for diagnostics only on PS/2 systems
SeeAlso: AH=0Ah
--------B-130F-------------------------------
INT 13 - HARD DISK - WRITE SECTOR BUFFER (XT only)
AH = 0Fh
DL = drive number (80h = first, 81h = second hard disk)
ES:BX -> buffer
Return: CF set on error
CF clear if successful
AH = status code (see #0159)
Notes: does not write data to the drive
should be called before formatting to initialize an XT-type
controller's sector buffer
used for diagnostics only on PS/2 systems
SeeAlso: AH=0Bh
--------B-1310-------------------------------
INT 13 - HARD DISK - CHECK IF DRIVE READY
AH = 10h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
--------B-1311-------------------------------
INT 13 - HARD DISK - RECALIBRATE DRIVE
AH = 11h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
Note: causes hard disk controller to seek the specified drive to cylinder 0
SeeAlso: AH=00h,AH=0Ch,AH=19h"FIXED DISK"
--------B-1312-------------------------------
INT 13 - HARD DISK - CONTROLLER RAM DIAGNOSTIC (XT,PS)
AH = 12h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status code (see #0159 at AH=01h)
AL = 00h
SeeAlso: AH=13h,AH=14h
--------d-1312-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - STOP SCSI DISK
AH = 12h
DL = hard drive ID
Return: CF set on error
CF clear if successful
AH = status code (see #0159 at AH=01h)
Notes: available at least on the TMC-870 8-bit SCSI controller BIOS v6.0A
if the given drive is a SCSI device, the SCSI Stop Unit command is sent
and either "Disk prepared for shipping" or "Disk Stop command failed"
is displayed
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
--------d-1312-------------------------------
INT 13 - SyQuest - START/STOP SCSI DISK
AH = 12h
AL = subfunction
00h start disk
01h stop disk
CX = wait flag
00h wait for ready
01h don't wait for ready
DL = hard drive ID (bit 7 for hard disks must be set)
Return: CF set on error
CF clear if successful
AH = status
00h successful
01h invalid function request
80h timeout
SeeAlso: AH=12h"Future Domain",AH=13h"SyQuest"
--------B-1313-------------------------------
INT 13 - HARD DISK - DRIVE DIAGNOSTIC (XT,PS)
AH = 13h
DL = drive number (80h = first, 81h = second hard disk)
Return: CF set on error
CF clear if successful
AH = status code (see #0159 at AH=01h)
AL = 00h
SeeAlso: AH=12h"HARD DISK",AH=14h"HARD DISK"
--------d-1313-------------------------------
INT 13 - SyQuest - READ DRIVE PARAMATERS (for DOS 5+)
AH = 13h
DL = drive ID (bit 7 set for hard disks)
Return: CF set on error
AH = status (07h) (see #0159 at AH=01h)
CF clear if successful
AH = 00h
BL = drive type (AT/PS2 floppies only) (see #0167)
CH = low eight bits of maximum cylinder number
CL = maximum sector number (bits 5-0)
high two bits of maximum cylinder number (bits 7-6)
DH = maximum head number
DL = number of drives
ES:DI -> drive parameter table (floppies only)
Notes: the return values are identical to the standard INT 13/AH=08h, but the
number of drives is not limited to 2, so
scanning all possible drive numbers with the Read DASD Type call
(AH=15h) should generally be preferred to determine the number of
drives attached to the system.
SeeAlso: AH=08h"PC",AH=12h"SyQuest",AH=15h,AH=59h"SyQuest"
--------B-1314-------------------------------
INT 13 - HARD DISK - CONTROLLER INTERNAL DIAGNOSTIC
AH = 14h
Return: CF set on error
CF clear if successful
AH = status code (see #0159 at AH=01h)
AL = 00h
SeeAlso: AH=12h,AH=13h
--------B-1315-------------------------------
INT 13 - DISK - GET DISK TYPE (XT 1/10/86 or later,XT286,AT,PS)
AH = 15h
DL = drive number (bit 7 set for hard disk)
Return: CF clear if successful
AH = type code
00h no such drive
01h floppy without change-line support
02h floppy (or other removable drive) with change-line support
03h hard disk
CX:DX = number of 512-byte sectors
CF set on error
AH = status (see #0159 at AH=01h)
Note: SyQuest can report type 01h or 02h for 'hard disks', since its media
is removable
SeeAlso: AH=08h,AH=16h,AH=17h,AH=19h"SCSI"
--------B-1316-------------------------------
INT 13 - FLOPPY DISK - DETECT DISK CHANGE (XT 1/10/86 or later,XT286,AT,PS)
AH = 16h
DL = drive number (00h-7Fh)
Return: CF clear if change line inactive
AH = 00h (disk not changed)
CF set if change line active
AH = status
01h invalid command (SyQuest)
06h change line active or not supported
80h drive not ready or not present
Notes: call AH=15h first to determine whether the drive supports a change
line
this call also clears the media-change status, so that a disk change
is only reported once
BUG: some versions of Award 386 Modular BIOS and AMI BIOS fail to clear
the media-change status
SeeAlso: AH=15h,AH=49h
--------B-1317-------------------------------
INT 13 - FLOPPY DISK - SET DISK TYPE FOR FORMAT (AT,PS)
AH = 17h
AL = format type
01h = 320/360K disk in 360K drive
02h = 320/360K disk in 1.2M drive
03h = 1.2M disk in 1.2M drive
04h = 720K disk in 720K or 1.44M drive
DL = drive number
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
Note: this function does not handle 1.44M drives; use AH=18h instead
SeeAlso: AH=15h,AH=18h
--------d-131700-----------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET INQUIRY INFO FROM SCSI DEVICE
AX = 1700h
CL = length of buffer
DL = hard drive ID
ES:BX -> buffer for info (see #0168)
Return: CF clear if successful
CH = number of bytes returned in buffer???
CF set on error
AH = status code (see #0159 at AH=01h)
Notes: this function is not available with 8-bit controller ROM versions < 7.0
information block bytes 5-n are vendor-specific in older SCSI devices
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=18h"SCSI",AH=1Bh"SCSI"
Format of Future Domain SCSI inquiry information block:
Offset Size Description (Table 0168)
00h BYTE device type
bits 0-4: peripheral device type (see #0169)
bits 5-7: peripheral qualifier (see #0170)
01h BYTE device type modifier
bits 0-6: device type modifier
bit 7: removable medium
02h BYTE SCSI version (see #0171)
03h BYTE data format/capabilities (see #0172)
04h BYTE additional data length (total remaining bytes)
05h 2 BYTEs reserved
07h BYTE device capabilities (see #0173)
08h 8 BYTEs vendor identification (space-padded ASCII)
10h 8 BYTEs product identification (space-padded ASCII)
20h 4 BYTEs product revision level (space-padded ASCII)
24h 20 BYTEs vendor specific
38h 40 BYTEs reserved
60h var vendor specific parameters
(Table 0169)
Values for Future Domain SCSI peripheral device type:
00h direct-access device (e.g., magnetic disk)
01h sequential-access device (e.g., magnetic tape)
02h printer device
03h processor device
04h write-once device (e.g., some optical disks)
05h CD-ROM device
06h scanner device
07h optical memory device (e.g., some optical disks)
08h medium changer device (e.g., jukeboxes)
09h communications device
0Ah (defined by ASC IT8)
0Bh (defined by ASC IT8)
0Ch-1Eh reserved
1Fh unknown or no device type
(Table 0170)
Values for Future Domain SCSI peripheral qualifier:
000b device is currently connected to this logical unit and available
001b target is capable of supporting the specified peripheral, but the
physical device is not currently connected to this logical unit
010b reserved
011b target can't support a physical device on this logical unit
1xxb vendor specific
Bitfields for Future Domain SCSI version:
Bit(s) Description (Table 0171)
0-2 ANSI-approved version
000 device might or might not comply to ANSI standard
001 device complies to ANSI SCSI-1
010 device complies to ANSI SCSI-2
other reserved
3-5 ECMA version
6-7 ISO version
Bitfields for Future Domain SCSI data format/capabilities:
Bit(s) Description (Table 0172)
0-2 response data format
000 information block is as specified in SCSI-1
001 information block is as specified in CCS
010 information block is as specified in SCSI-2
other reserved
4-5 reserved
6 terminate I/O process supported
7 asynchronous event notification supported
Bitfields for Future Domain SCSI device capabilities:
Bit(s) Description (Table 0173)
0 device responds to RESET with a hard RESET
1 tagged command queuing supported
2 reserved
3 linked commands supported
4 synchronous data transfer supported
5 16-transfers supported
6 32-transfers supported
7 relative addressing supported
--------B-1318-------------------------------
INT 13 - DISK - SET MEDIA TYPE FOR FORMAT (AT model 3x9,XT2,XT286,PS)
AH = 18h
DL = drive number
CH = lower 8 bits of highest cylinder number (number of cylinders - 1)
CL = sectors per track (bits 0-5)
top 2 bits of highest cylinder number (bits 6,7)
Return: AH = status
00h requested combination supported
01h function not available
0Ch not supported or drive type unknown
80h there is no disk in the drive
ES:DI -> 11-byte parameter table (see #0929 at INT 1E)
Note: this function does not set the INT 1E vector to point at the returned
parameter table; it is the caller's responsibility to do so
SeeAlso: AH=05h,AH=07h,AH=17h,INT 1E
--------d-1318-------------------------------
INT 13 - Future Domain SCSI BIOS - GET SCSI CONTROLLER INFORMATION
AH = 18h
DL = hard drive ID
Return: CF set on error
AH = status code (see #0159 at AH=01h)
CF clear if successful
AX = 4321h (magic number)
CX = controller family code (see #0174)
---if family code=0200h
DH = number of exclusively ROM-controlled SCSI devices
DL = canonical SCSI device number for specified drive
---if family code <> 0200h
BH = number of exclusively ROM-controlled SCSI devices
BL = canonical SCSI device number for specified drive
Notes: also sets an internal flag (non-resettable) which prevents some
controller messages from being displayed, allows writes to
removable devices (use caution!), and enables the INT 13 interface
for more than one drive (i.e. DL >= 81h) in at least some ROM
versions
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=05h"SCSI",AX=1700h"SCSI",AH=1Bh"SCSI",INT 4F/AX=8100h
(Table 0174)
Values for Future Domain SCSI controller family code:
0200h TMC-1680/? (ROM 3.0)
0203h TMC-1650/1660/1670/1680 (ROM 2.0)
040Ah TMC-820/830/840/850/860/870/875/880/885 (ROM <= 6.0A)
050Dh TMC-840/841/880/881 (ROM 5.2D)
0700h TMC-830/850/860/875/885 (ROM 7.0)
--------d-1318--CX5055-----------------------
INT 13 - PU_1700.COM - INSTALLATION CHECK
AH = 18h
CX = 5055h ('PU')
DL = 00h
Return: AX = 7570h ('up') if PU_1700 is installed
Program: PU_1700 is a BIOS enhancer from PU Service Systems which permits
formatting diskettes at higher capacity (1.78M instead of 1.44M)
SeeAlso: AX=057Fh/SI=324Dh"2M"
--------d-1318--CXD2C9-----------------------
INT 13 - XDF.COM - API
AH = 18h
CX = D2C9h ("R"+80h, "I"+80h = Roger Ivey)
DX = 0000h
BX = function
0000h installation check
Return: AH = 0Ch
CX = 7269h ("ri" = Roger Ivey)
ES = segment of driver
CF set
2F64h ("/d") disable the driver
Return: AH = 0Ch
ES:BX = pointer to activation flag (it is set to 0:
set it to 1 to enable the driver again)
CX = 7269h
CF set
2F75h ("/u") unload the driver (restore interrupts & free memory)
Return: AH = 0Ch
DL = 55h ("U") if successful
= 00h if fails
CX = 7269h
ES = segment of driver
CF set
AL, BX, DH, and DI destroyed
Program: XDF is a TSR provided with PC-DOS 7.0 to support XDF 1.84M disks,
developed by Roger D. Ivey
Note: After disabling or enabling the driver, a disk change must be performed
or simulated to reset the driver.
--------B-1319-------------------------------
INT 13 - FIXED DISK - PARK HEADS ON ESDI DRIVE (XT286,PS)
AH = 19h
DL = drive
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
SeeAlso: AH=11h
--------d-1319-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - REINITIALIZE DRIVE
AH = 19h
DL = hard drive ID
Return: CF set on error
AH = status code (see #0159 at AH=01h)
CF clear if successful
AH = disk type (03h = fixed disk)
CX:DX = number of 512-byte sectors
Notes: sends SCSI Read Capacity command to get number of logical blocks and
adjusts the result for 512-byte sectors
displays either "Error in Read Capacity Command" or "nnn Bytes per
sector" (nnn=256 or 512, the only sizes supported in the translation
code)
should probably be called when a removable device has its media changed
returns the same values as AH=15h
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=15h,AH=1Ah,INT 4F/AX=8100h
--------d-131A-------------------------------
INT 13 - ESDI FIXED DISK - FORMAT UNIT (PS)
AH = 1Ah
AL = defect table entry count
CL = format modifiers (see #0175)
DL = drive (80h,81h)
ES:BX -> defect table (see #0176), ignored if AL=00h
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
Note: if periodic interrupt selected, INT 15/AH=0Fh is called after each
cylinder is formatted
SeeAlso: AH=07h,INT 15/AH=0Fh
Bitfields for ESDI format modifiers:
Bit(s) Description (Table 0175)
4 generate periodic interrupt
3 perform surface analysis
2 update secondary defect map
1 ignore secondary defect map
0 ignore primary defect map
Format of defect table entry [array]:
Offset Size Description (Table 0176)
00h 3 BYTEs relative sector address (little-endian)
03h BYTE flags and defect count
bit 7: last logical sector on track
bit 6: first logical sector on track
bit 5: last logical sector on cylinder
bit 4: logical sectors are pushed onto next track
bits 3-0: number of defects pushed from previous cylinder
--------d-131A-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET SCSI PARTIAL MEDIUM CAPACITY
AH = 1Ah
CH = track (bits 8,9 in high bits of CL)
CL = sector (01h to number of sectors/track for drive)
DH = head
DL = hard drive ID
Return: CF set on error
AH = status code (see #0159 at AH=01h)
CX:DX = logical block number of last quickly-accessible block after
given block
Notes: sends SCSI Read Capacity command with the PMI bit set to obtain the
logical block address of the last block after which a substantial
delay in data transfer will be encountered (usually the last block
on the current cylinder). No translation to 512 byte sectors is
performed on the result if data is stored on the disk in other than
512 byte sectors.
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=15h,AH=19h"SCSI"
--------d-131B-------------------------------
INT 13 - ESDI FIXED DISK - GET MANUFACTURING HEADER
AH = 1Bh
AL = number of sectors to read
DL = drive
ES:BX -> buffer for manufacturing header (defect list)
Return: CF set on error
CF clear if successful
AH = status
Note: manufacturing header format (Defect Map Record format) can be found
in IBM 70MB, 115MB Fixed Disk Drives Technical Reference
the first sector read contains the manufacturing header with the number
of defect entries and the beginning of the defect map; the remaining
sectors contain the remainder of the defect map
--------d-131B-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET POINTER TO SCSI DISK INFO BLOCK
AH = 1Bh
DL = hard drive ID
Return: CF set on error
AH = status code (see #0159 at AH=01h)
CF clear if successful
ES:BX -> SCSI disk information block (see #0177)
Notes: also sets a non-resettable flag which prevents some controller messages
from being displayed
the TMC-950 does not support any Future Domain BIOS calls; instead,
it provides a full CAM implementation (see INT 4F/AX=8100h)
SeeAlso: AH=18h"SCSI",AH=1Ch"SCSI"
Format of Future Domain SCSI disk information block:
Offset Size Description (Table 0177)
00h BYTE drive physical information (see #0178)
01h WORD translated number of cylinders
03h BYTE translated number of heads
04h BYTE translated number of sectors per track (17, 34, or 63)
05h BYTE drive address
bits 0-2: logical unit number
bits 3-5: device number
06h BYTE 01h at initialization
07h BYTE sense code byte 00h, or extended sense code byte 0Ch
08h BYTE 00h
09h BYTE 00h or extended sense code byte 02h (sense key)
0Ah BYTE 00h
0Bh 10 BYTEs copy of Command Descriptor Block (CDB) (see #2868,#2869)
15h DWORD translated number of sectors on device
Bitfields for Future Domain SCSI device physical information:
Bit(s) Description (Table 0178)
0 ???
1 device uses parity
2 256 bytes per sector instead of 512
3 don't have capacity yet???
4 disk is removable
5 logical unit number is not present
--------d-131C-------------------------------
INT 13 - Future Domain SCSI CONTROLLER - GET POINTER TO FREE CONTROLLER RAM
AH = 1Ch
DL = hard drive ID (any valid SCSI hard disk)
Return: CF set on error
AH = status code (see #0159 at AH=01h)
CF clear if successful
ES:BX -> first byte of free RAM on controller
Notes: the Future Domain TMC-870 contains 1024 bytes of RAM at offsets 1800h
to 1BFFh on-board the controller for storing drive information and
controller status; ES:BX points to the first byte available for other
uses
ES contains the segment at which the controller resides; the
controller's two memory-mapped I/O ports are at offsets 1C00h, 1E00h
SeeAlso: AH=1Bh"SCSI"
--------d-131C-------------------------------
INT 13 U - ESDI FIXED DISK - ???
AH = 1Ch
AL = subfunction (01h-06h)
DL = drive (80h,81h)
???
Return: ???
Note: these functions perform a controller command 0612h without DMA
SeeAlso: AX=1C08h,PORT 3510h"ESDI"
--------d-131C08-----------------------------
INT 13 U - ESDI FIXED DISK - GET COMMAND COMPLETION STATUS
AX = 1C08h
DL = drive (80h,81h)
ES:BX -> buffer for Command Complete Status Block (see #0179)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
SeeAlso: AX=1C09h,AX=1C0Ah,PORT 3510h"ESDI"
Format of ESDI Command Complete Status Block:
Offset Size Description (Table 0179)
00h BYTE 07h
01h BYTE size of block in words (07h)
02h BYTE command error code (see #0180)
03h BYTE command status code (see #0181)
04h BYTE device error code, group 1 (see #0182)
05h BYTE device error flags, group 2 (see #0183)
06h WORD number of unprocessed sectors due to abnormal termination
08h DWORD last Relative Sector Address processed by command
0Ch WORD number of sectors corrected by ECC codes
(Table 0180)
Values for ESDI command error code:
00h successful
01h parameter invalid
02h unknown function
03h unsupported command
04h command cancelled
05h unknown function
06h controller diagnostics failed
07h formatting failed
08h format error in primary map
09h format error in secondary map
0Ah diagnostic failure during formatting
0Bh warning: secondary map too large during formatting
0Ch warning: non-zero defect
0Dh system checksum error during formatting
0Eh warning: incompatible device
0Fh warning: push table overflowed
10h warning: more than 15 sectors pushed to next cylinder
11h internal hardware error
12h warning: errors found while verifying sectors
13h invalid device
FFh device error
(Table 0181)
Values for ESDI command status code:
01h successful
03h successful after ECC
05h successful after retries
06h format partially completed
07h successful after ECC and retries
08h command completed with warning (see #0180)
09h abort complete
0Ah reset complete
0Bh data transfer ready (no status block)
0Ch command completed with failure (see #0182,#0183)
0Dh DMA error
0Eh command block error (see #0180)
0Fh bad attention code
SeeAlso: #0182
(Table 0182)
Values for ESDI device error code, group 1:
00h successful
01h seek fault detected by device
02h interface fault
03h sector ID not found
04h disk not formatted
05h unrecoverable ECC error
06h ECC error in sector ID
07h invalid relative sector address
08h timeout
09h sector defective
0Ah disk changed (removable media)
0Bh selection error
0Ch write protected (removable media)
0Dh write fault
0Eh read fault
0Fh no index or sector pulse
10h device not ready
11h seek error detected by adapter
12h bad format
13h volume overflow
14h data address mark not found
15h sector ID not found
16h missing device configuration data
17h first/last relative sector flags missing
18h track empty
81h timeout while waiting for stop
82h timeout while waiting for end of data transfer
84h stopped awaiting data transfer during formatting
85h timeout while waiting for head switch
86h timeout while awaiting DMA completion
SeeAlso: #0181,#0183
Bitfields for ESDI device error flags, group 2:
Bit(s) Description (Table 0183)
7-5 unused
4 ready
3 selected
2 write fault
1 on track 0
0 seek/command complete
SeeAlso: #0182
--------d-131C09-----------------------------
INT 13 U - ESDI FIXED DISK - GET DEVICE STATUS
AX = 1C09h
DL = drive (80h,81h)
ES:BX -> buffer for Device Status Block (see #0184)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
SeeAlso: AX=1C08h,AX=1C0Ah,PORT 3510h"ESDI"
Format of ESDI Device Status Block:
Offset Size Description (Table 0184)
00h BYTE 08h
01h BYTE number of words in block (09h)
02h BYTE error flags
03h BYTE unused
04h BYTE command error code (see #0180)
05h BYTE command status code (see #0181)
06h WORD ESDI standard status
08h 5 WORDs ESDI vendor-specific status codes
--------d-131C0A-----------------------------
INT 13 U - ESDI FIXED DISK - GET DEVICE CONFIGURATION
AX = 1C0Ah
DL = drive (80h,81h)
ES:BX -> buffer for Drive Configuration Status Block (see #0185)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
Note: device configuration format can be found in IBM ESDI Fixed Disk Drive
Adapter/A Technical Reference
SeeAlso: AX=1C08h,AX=1C0Bh,AX=1C0Ch
Format of ESDI Drive Configuration Status Block:
Offset Size Description (Table 0185)
00h BYTE 09h
01h BYTE number of words in block (06h)
02h BYTE flags
03h BYTE number of spare sectors per cylinder
04h DWORD total number of usable sectors
08h WORD total number of cylinders
0Ah BYTE tracks per cylinder
0Bh BYTE sectors per track
--------d-131C0B-----------------------------
INT 13 U - ESDI FIXED DISK - GET ADAPTER CONFIGURATION
AX = 1C0Bh
ES:BX -> buffer for Controller Configuration Status Block (see #0186)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
SeeAlso: AX=1C0Ch
Format of ESDI Controller Configuration Status Block:
Offset Size Description (Table 0186)
00h BYTE E9h
01h BYTE number of words in block (06h)
02h WORD unused (0000h)
04h DWORD controller microcode revision level
08h 2 WORDs unused (0000h)
--------d-131C0C-----------------------------
INT 13 U - ESDI FIXED DISK - GET POS INFORMATION
AX = 1C0Ch
ES:BX -> buffer for POS Information Status Block (see #0187)
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
SeeAlso: AX=1C0Bh
Format of ESDI POS Information Status Block:
Offset Size Description (Table 0187)
00h BYTE EAh
01h BYTE number of words in block (05h)
02h WORD magic value FFDDh
04h BYTE POS register 3
05h BYTE POS register 2
06h BYTE POS register 5 (unused, FFh)
07h BYTE POS register 4 (unused, FFh)
08h BYTE POS register 7 (unused, FFh)
09h BYTE POS register 6 (unused, FFh)
--------d-131C0D-----------------------------
INT 13 U - ESDI FIXED DISK - ???
AX = 1C0Dh
DL = drive (80h,81h)
???
Return: ???
Note: invokes controller command 0614h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Fh,PORT 3510h"ESDI"
--------d-131C0E-----------------------------
INT 13 U - ESDI FIXED DISK - TRANSLATE RBA TO ABA
AX = 1C0Eh
CH = low 8 bits of cylinder number
CL = sector number, high two bits of cylinder number in bits 6 and 7
DH = head number
DL = drive number (80h,81h)
ES:BX -> ABA number
Return: CF set on error
CF clear if successful
AH = status (see #0159 at AH=01h)
Note: ABA (absolute block address) format can be found in IBM ESDI Adapter
Technical Reference by using its Device Configuration Status Block
SeeAlso: AX=1C08h,AX=1C0Fh,PORT 3510h"ESDI"
--------d-131C0F-----------------------------
INT 13 U - ESDI FIXED DISK - ???
AX = 1C0Fh
DL = drive (80h,81h)
???
Return: ???
Note: invokes controller command 0614h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Dh,AX=1C12h,PORT 3510h"ESDI"
--------d-131C12-----------------------------
INT 13 U - ESDI FIXED DISK - ???
AX = 1C12h
DL = drive (80h,81h)
???
Return: ???
Note: invokes controller command 0612h without DMA
SeeAlso: AH=1Ch"ESDI",AX=1C0Fh,PORT 3510h"ESDI"
--------c-131D-------------------------------
INT 13 - IBMCACHE.SYS - CACHE STATUS
AH = 1Dh
AL = subfunction
01h get status record
DL = drive???
Return: ES:BX -> status record (see #0188)
CF set on error
AH = error code
02h set cache status
ES:BX -> status record (see #0188)
DL = drive???
Return: CF set on error
Format of IBMCACHE.SYS status record:
Offset Size Description (Table 0188)
00h DWORD total number of read requests
04h DWORD total number of hits
08h DWORD number of physical disk reads
0Ch DWORD total number of sectors requested by physical disk reads
10h 6 BYTEs ???
16h DWORD pointer to start of error list (see #0189)
1Ah DWORD pointer to end of error list
1Eh WORD ???
20h BYTE using extended memory if nonzero
21h BYTE ???
22h 4 BYTEs ASCII version number
26h WORD cache size in KB
28h WORD sectors per page
Format of IBMCACHE.SYS error list:
Offset Size Description (Table 0189)
00h DWORD relative block address of bad page
04h BYTE drive
05h BYTE sector bit-map
06h WORD next error
--------d-131F-------------------------------
INT 13 - SyQuest - DOOR LATCH/DOOR BUTTON DETECT
AH = 1Fh
AL = subfunction
00h allow media removal
01h prevent media removal (lock door)
DL = drive ID (bit 7 set for hard disks)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
00h successful
01h invalid function request
80h timeout
DDh media change requested
SeeAlso: AH=12h"SyQuest",AH=13h"SyQuest",AH=59h"SyQuest"
--------d-1320-------------------------------
INT 13 - DISK - ??? (Western Digital "Super BIOS")
AH = 20h
???
Return: ???
Notes: returns some kind of status related to whether the drive contains its
default media type
QEMM v6.00 calls INT 13/AX=2000h/DL=81h in some cases
--------b-1320-------------------------------
INT 13 U - Compaq, ATAPI Removable Media Device - GET CURRENT MEDIA FORMAT
AH = 20h
DL = drive number (00h,01h)
Return: CF clear if successful
AL = media type (see #0190)
AH = 00h
CF set on error
AH = error code
01h invalid request
30h drive does not support media sense
31h no such drive / media not present
32h non-default media / drive does not supporte media type
Notes: this function is supported by the 3/8/93 ROM BIOS, but only partially
(AL is always 00h when successful) by the 8/3/93 version
this function is also supported by some recent versions of the Phoenix
486 BIOS
(Table 0190)
Values for Compaq/ATAPI diskette media type:
03h 720K (1M unformatted)
04h 1.44M (2M unformatted)
06h 2.88M (4M unformatted)
0Ch 360K
0Dh 1.2M
0Eh Toshiba 3mode
0Fh NEC 3mode (1024-byte sectors)
10h ATAPI Removable Media Device
--------c-1320-------------------------------
INT 13 u - QUICKCACHE II v4.20 - DISMOUNT
AH = 20h
AL = drive (00h = A:, etc. or 7Fh for all removable drives???
or FFh for all drives)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
Desc: flush any dirty buffers for the specified drive(s) and then discard
those sector buffers
SeeAlso: AH=21h"QUICKCACHE",AH=22h"QUICKCACHE",AH=28h
--------d-1321-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - READ MULTIPLE DISK SECTORS
AH = 21h
AL = number of sectors to write
CH = low byte of 12-bit cylinder number
CL = starting sector (bits 0-5) and bits 8-9 of cylinder (bits 6-7)
DH = head number (bits 0-5) and bits 10-11 of cylinder (bits 6-7)
DL = drive number (80h,81h)
ES:BX -> buffer for data to be read
Return: CF clear if successful
ES:BX buffer filled
CF set on error
AH = status (see #0159 at AH=01h)
Desc: read from the disk using the Multiple Block mode available on newer
IDE drives and some hard disk controllers, which generates an
interrupt only after the end of transferring a group of sectors
rather than after each sector
Notes: must call AH=24h"PS/1" before using this function
input values in CL and DH are not range-checked
the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=02h,AH=22h"PS/1",AH=23h"PS/1",AH=24h"PS/1"
--------c-1321-------------------------------
INT 13 u - QUICKCACHE II v4.20 - FLUSH CACHE
AH = 21h
Return: AX = status (0000h successful)
Desc: immediately write all dirty sectors back to disk
SeeAlso: AH=25h"QUICKCACHE",AH=2Eh,AH=2Fh
--------d-1322-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - WRITE MULTIPLE DISK SECTORS
AH = 22h
AL = number of sectors to write
CH = low byte of 12-bit cylinder number
CL = starting sector (bits 0-5) and bits 8-9 of cylinder (bits 6-7)
DH = head number (bits 0-5) and bits 10-11 of cylinder (bits 6-7)
DL = drive number (80h,81h)
ES:BX -> buffer containing data to be written
Return: CF clear if successful
CF set on error
AH = status (see #0159 at AH=01h)
Desc: write to the disk using the Multiple Block mode available on newer
IDE drives and some hard disk controllers, which generates an
interrupt only after the end of transferring a group of sectors
rather than after each sector
Notes: must call AH=24h"PS/1" before using this function
input values in CL and DH are not range-checked
the byte at address 0040h:0074h is set to the status of the operation
SeeAlso: AH=03h,AH=21h"PS/1",AH=23h"PS/1",AH=24h"PS/1"
--------c-1322-------------------------------
INT 13 u - QUICKCACHE II v4.20 - ENABLE/DISABLE CACHE
AH = 22h
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Note: enables/disables caching of all drives
SeeAlso: AH=2Ch,AH=2Dh,AH=32h,AH=33h,AH=A3h,AH=A4h
--------d-1323-------------------------------
INT 13 U - HARD DISK - PS/1 and newer PS/2 - SET CONTROLLER FEATURES REGISTER
AH = 23h
AL = feature number (see #0191)
DL = drive number (80h,81h)
???
Return: CF clear if successful
CF set on error
AH = status (see #0159 at AH=01h)
SeeAlso: AH=21h"PS/1",AH=22h"PS/1",AH=24h"PS/1",AH=25h"PS/1"
(Table 0191)
Values for PS/1 hard disk feature number:
01h select 8-bit data transfers instead of 16-bit
02h enable write cache
22h Write Same, user-specified area
33h disable retries
44h set number of ECC bytes for read long/write long (see AH=0Ah,AH=0Bh)
54h set cache segments
55h disable lookahead
66h disable reverting to power-on defaults
77h disable error correctioni
81h select 16-bit data transfers (default)
82h disable write cache
88h enable error correction (default)
99h enable retries (default)
AAh enable lookahead
BBh set ECC length for read long/write long to four bytes
CCh enable reverting to power-on defaults
DDh Write Same, entire disk
SeeAlso: #P144
--------c-1323-------------------------------
INT 13 U - QUICKCACHE II v4.20 - GET ??? ADDRESS
AH = 23h
Return: AX = status (0000h successful)
ES = segment of ??? data
--------d-1324-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - SET MULTIPLE MODE
AH = 24h
AL = number of sectors per block (2,4,8,16)
DL = drive number (80h,81h)
Return: CF clear if successful
CF set onerror
AH = status (see #0159 at AH=01h)
Desc: specify how many sectors the controller should transfer as a group
between operation-complete interrupts when using the Read Multiple
and Write Multiple functions (AH=21h,AH=22h)
Notes: set the number of sectors to 0 to disable multiple-transfer mode
the maximum value for the block size depends on the fixed disk
drive type. The value is stored in byte 15h of the fixed disk
drive parameter table that is created by POST.
the byte at address 0040h:0074h is set to status of operation.
SeeAlso: AH=21h"PS/1",AH=22h"PS/1",AH=23h"PS/1",AH=25h"PS/1"
--------c-1324-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET SECTORS
AH = 24h
BX = new number of sector buffers in cache
Return: AX = status
0000h successful
0001h failed--size adjusted
8000h cache cannot be resized while enabled
SeeAlso: AH=36h
--------d-1325-------------------------------
INT 13 - HARD DISK - PS/1 and newer PS/2 - IDENTIFY DRIVE
AH = 25h
DL = drive number (80h,81h)
ES:BX-> 512 byte buffer for reply packet
Return: CF clear if successful
CF set on error
AH = status (see #0159 at AH=01h)
buffer filled with ATA/IDE-style drive information block (see #0192)
Desc: retrieves the 256 words of drive data stored on an IDE hard disk
Notes: the byte at address 0040h:0074h is set to the status of the operation
IBM officially classifies this function as optional
SeeAlso: AH=23h"PS/1"
Format of drive information block:
Offset Size Description (Table 0192)
00h WORD general drive configuration (see #0193)
02h WORD number of cylinders
04h WORD reserved
06h WORD number of heads
08h WORD number of unformatted bytes per track
0Ah WORD number of unformatted bytes per sector
0Ch WORD number of sectors per track
0Eh 6 BYTEs vendor unique
14h 20 BYTEs serial number in ASCII, 0000h=not specified)
28h WORD buffer type
2Ah WORD buffer size in 512 byte increments (0000h=not specified)
2Ch WORD number of ECC bytes passed on Read/Write Long cmds
0000h = not specified
2Eh 8 BYTEs firmware revision in ASCII, 0000h=not specified
36h 40 BYTEs model number in ASCII, 0000h=not specified
5Eh WORD bits 15-8 Vendor Unique
bits 7-0 00h = Read/Write Multiple commands not implemented
xxh = Maximum number of sectors that can be
transferred per interrupt on Read and Write
Multiple commands
60h WORD 0000h = cannot perform doubleword I/O
0001h = can perform doubleword I/O
62h WORD capabilities
bit 15-9 0=reserved
bit 8 1=DMA Supported
bit 7-0 Vendor Unique
64h WORD reserved
66h WORD bits 15-8 PIO data transfer cycle timing mode
bits 7-0 Vendor Unique
68h WORD bits 15-8 DMA data transfer cycle timing mode
bits 7-0 Vendor Unique
6Ah WORD bits 15-1 reserved
bit 0 1=the fields reported in tranlation mode are valid
0=the fields reported in translation mode may be valid
6Ch WORD number of current cylinders
6Eh WORD number of current heads
70h WORD number of current sectors per track
72h DWORD current capacity in sectors
76h WORD reserved
78h 136 BYTEs not defined by ATA spec 2.6
100h 64 BYTEs vendor unique
140h 96 BYTEs reserved
Note: the above description is as in the ATA (AT Attachment) Specification.
SeeAlso: #P126
Bitfields for general drive configuration:
Bit(s) Description (Table 0193)
15 0 reserved for non-magnetic drives
14 format speed tolerance gap required
13 track offset option available
12 data strobe offset option available
11 rotational speed tolerance is > 0.5%
10 disk transfer rate > 10 Mbs
9 disk transfer rate > 5Mbs but <= 10Mbs
8 disk transfer rate <= 5Mbs
7 removable cartridge drive
6 fixed drive
5 spindle motor control option implemented
4 head switch time > 15 usec
3 not MFM encoded
2 soft sectored
1 hard sectored
0 reserved (0)
--------c-1325-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET FLUSH INTERVAL
AH = 25h
BX = interval
Return: AX = status (0000h successful)
Desc: specify how often the cache should write dirty buffers to disk when
buffered writes are enabled
SeeAlso: AH=21h"QUICKCACHE",AH=2Ch,AH=2Eh
--------c-1326-------------------------------
INT 13 U - QUICKCACHE II v4.20 - UNINSTALL
AH = 26h
Return: AX = status
0000h successful
0001h-00FFh interrupt vector which was hooked by another TSR
SeeAlso: AH=27h
--------c-1327--BX0000-----------------------
INT 13 u - QUICKCACHE II v4.20 - INSTALLATION CHECK
AH = 27h
BX = 0000h
Return: AX = 0000h if installed
BX nonzero if installed
BH = major version
BL = binary minor version
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=26h,AH=A0h,INT 16/AX=FFA5h/CX=1111h
--------c-1328-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET AUTOMATIC DISMOUNT
AH = 28h
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
SeeAlso: AH=20h"QUICKCACHE"
--------c-1329-------------------------------
INT 13 U - QUICKCACHE II v4.20 - NOP
AH = 29h
Return: AX = 0000h
--------c-132A-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFER SIZE
AH = 2Ah
AL = buffer size (1-30)
Return: AX = status (0000h successful)
Desc: specify the number of cache sector buffers to dedicate to buffered read
and write operations
SeeAlso: AH=2Ch,AH=2Dh,AH=39h,AH=3Ah
--------c-132B-------------------------------
INT 13 U - QUICKCACHE II v4.20 - DRIVE ACCESS SOUNDS
AH = 2Bh
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
--------c-132C-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFERED WRITES
AH = 2Ch
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Desc: specify whether the cache should delay disk writes
Note: this function enables or disables delayed writes for all drives; use
AH=38h to change a single drive
SeeAlso: AH=25h"QUICKCACHE",AH=2Dh,AH=2Eh,AH=38h
--------c-132D-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET BUFFERED READ
AH = 2Dh
AL = new state (00h disabled, 01h enabled)
Return: AX = status (0000h successful)
Desc: specify whether the cache should attempt to read ahead of actual
requests
Note: this function enables or disables read-ahead for all drives; use AH=37h
to change a single drive
SeeAlso: AH=2Ch,AH=37h
--------c-132E-------------------------------
INT 13 u - QUICKCACHE II v4.20 - SET FLUSH COUNT
AH = 2Eh
BX = flush count
Return: AX = status (0000h successful)
Desc: specify how many dirty sectors the cache should write after each flush
interval (see AH=25h"QUICKCACHE") when buffered writes are enabled
SeeAlso: AH=21h"QUICKCACHE",AH=25h"QUICKCACHE",AH=2Ch
--------c-132F-------------------------------
INT 13 - QUICKCACHE II v4.20 - FORCE IMMEDIATE INCREMENTAL FLUSH
AH = 2Fh
Return: AX = status (0000h successful)
Desc: immediately flush up to "flushcount" dirty sectors to disk as if the
flush interval had expired
SeeAlso: AH=21h"QUICKCACHE"
--------c-1330-------------------------------
INT 13 u - QUICKCACHE II v4.20 - GET INFO
AH = 30h
AL = what to get
00h system info (see #0194)
01h drive info (see #0195)
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 QUICKCACHE II system info:
Offset Size Description (Table 0194)
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)
SeeAlso: #0195
Format of QUICKCACHE II drive info [16-element array, one element]:
Offset Size Description (Table 0195)
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"
SeeAlso: #0194
--------c-1331-------------------------------
INT 13 U - QUICKCACHE II v4.20 - RESERVE MEMORY
AH = 31h
BX = number of paragraphs of conventional memory to reserve for apps
Return: AX = status (0000h successful)
--------c-1332-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE CACHING FOR SPECIFIC DRIVE
AH = 32h
AL = drive number (00h=A:)
Return: AX = status (0000h successful)
SeeAlso: AH=22h"QUICKCACHE",AH=33h
--------c-1333-------------------------------
INT 13 U - QUICKCACHE II v4.20 - DISABLE CACHING FOR SPECIFIC DRIVE
AH = 33h
AL = drive number (00h=A:)
Return: AX = status (0000h successful)
SeeAlso: AH=22h"QUICKCACHE",AH=32h
--------c-1334-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SECTOR LOCKING
AH = 34h
AL = function
00h end sector locking/unlocking
01h lock all accessed sectors into cache
02h unlock all accessed sectors and discard from cache
Return: AX = status (0000h successful)
SeeAlso: AH=20h"QUICKCACHE",AH=35h
--------c-1335-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET LOCK POOL SIZE
AH = 35h
BX = number of sectors in lock pool
Return: AX = status (0000h successful)
Desc: specify the number of cache sector buffers which may be dedicated to
data locked into the cache
SeeAlso: AH=34h
--------c-1336-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET TRACE BUFFER SIZE
AH = 36h
AL = new size of trace buffer
Return: AX = status (0000h successful)
Note: called with AL=05h during an INT 13/AH=24h"QUICKCACHE" call
SeeAlso: AH=24h"QUICKCACHE"
--------c-1337-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BUFFERED READS FOR SPECIFIC DRIVE
AH = 37h
AL = new state (00h disabled, else enabled)
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Dh,AH=38h
--------c-1338-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BUFFERED WRITES FOR SPECIFIC DRIVE
AH = 38h
AL = new state (00h disabled, else enabled)
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Ch,AH=37h
--------c-1339-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET READ BUFFER SIZE FOR SPECIFIC DRIVE
AH = 39h
AL = new size of read buffer
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=2Ah,AH=3Ah
--------c-133A-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET WRITE BUFFER SIZE FOR SPECIFIC DRIVE
AH = 3Ah
AL = new size of write buffer
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
SeeAlso: AH=2Ah,AH=39h
--------c-133B-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE ???
AH = 3Bh
AL = new state of ??? (01h enabled, else disabled)
Return: AX = status (0000h successful)
Note: is affected by the flag reported at offset 05h of the system info
returned by AH=30h, and sets the flag at offset 06h
SeeAlso: AH=3Ch
--------c-133C-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE ???
AH = 3Ch
AL = new state of ??? (01h enabled, else disabled)
Return: AX = status (0000h successful)
Note: is affected by the flag reported at offset 05h of the system info
returned by AH=30h, and sets the flag at offset 07h
SeeAlso: AH=3Bh
--------c-133D-------------------------------
INT 13 U - QUICKCACHE II v4.20 - ENABLE/DISABLE CYLINDER FLUSH FOR DRIVE
AH = 3Dh
AL = new state (01h enabled, else disabled)
DL = drive number (00h = A:)
Return: AX = status (0000h successful)
--------c-133E-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET SINGLE-SECTOR BONUS
AH = 3Eh
AL = new value for bonus
Return: AX = status (0000h successful)
Desc: specify the bonus score to give to single-sector transfers in order to
keep those sectors in the cache longer
--------c-133F-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET BONUS THRESHOLD
AH = 3Fh
AL = new value for bonus threshold
Return: AX = status (0000h successful)
--------c-1340-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SET "sticky_max"
AH = 40h
AL = new value for "sticky_max"
Return: AX = status (0000h successful)
SeeAlso: AH=41h"QUICKCACHE"
--------d-1341--BX55AA-----------------------
INT 13 - IBM/MS INT 13 Extensions - INSTALLATION CHECK
AH = 41h
BX = 55AAh
DL = drive (80h-FFh)
Return: CF set on error (not supported)
AH = 01h (invalid function)
CF clear if successful
BX = AA55h if installed
AH = major version of extensions
(01h = 1.x, 20h = 2.0/EDD-1.0, 21h = 2.1/EDD-1.1)
AL = internal use
CX = API subset support bitmap (see #0196)
DH = extension version (v2.0+ ??? -- not present in 1.x)
Note: the Phoenix Enhanced Disk Drive Specification v1.0 uses version 2.0 of
the INT 13 Extensions API
SeeAlso: AH=42h"INT 13 Ext",AH=48h"INT 13 Ext"
Bitfields for IBM/MS INT 13 Extensions API support bitmap:
Bit(s) Description (Table 0196)
0 extended disk access functions (AH=42h-44h,47h,48h) supported
1 removable drive controller functions (AH=45h,46h,48h,49h,INT 15/AH=52h)
supported
2 enhanced disk drive (EDD) functions (AH=48h,AH=4Eh) supported
extended drive parameter table is valid (see #0198,#0201)
3-15 reserved (0)
--------c-1341-------------------------------
INT 13 U - QUICKCACHE II v4.20 - SAVE/RESTORE ???
AH = 41h
AL = direction
01h save to file
else restore from file
ES:DI -> 1024-byte buffer for ???
Return: AX = status (0000h successful, 8000h failed)
Program: QUICKCACHE II is a shareware disk cache by P.R. Glassel and
Associates, Inc.
SeeAlso: AH=40h"QUICKCACHE"
--------d-1342-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED READ
AH = 42h
DL = drive number
DS:SI -> disk address packet (see #0197)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #0159)
disk address packet's block count field set to number of blocks
successfully transferred
SeeAlso: AH=02h,AH=41h"INT 13 Ext",AH=43h"INT 13 Ext"
Format of disk address packet:
Offset Size Description (Table 0197)
00h BYTE 10h (size of packet)
01h BYTE reserved (0)
02h WORD number of blocks to transfer (max 007Fh for Phoenix EDD)
04h DWORD -> transfer buffer
08h QWORD starting absolute block number
(for non-LBA devices, compute as
(Cylinder*NumHeads + SelectedHead) * SectorPerTrack +
SelectedSector - 1
--------N-134257DX1234-----------------------
INT 13 U - Beame&Whiteside BWLPD - INSTALLATION CHECK
AX = 4257h ("BW")
DX = 1234h
Return: BX = 414Ch if installed
Program: BWLPD is the printer daemon from the BW-NFS package
SeeAlso: INT 62/AH=00h"ETHDEV"
--------d-1343-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED WRITE
AH = 43h
AL = write flags
---v1.0,2.0---
bit 0: verify write
bits 7-1 reserved (0)
---v2.1---
00h,01h write without verify
02h write with verify
DL = drive number
DS:SI -> disk address packet (see #0197)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #0159)
disk address packet's block count field set to number of blocks
successfully transferred
Note: the BIOS returns CF set/AH=01h (invalid function) if verify is
requested but not supported
SeeAlso: AH=03h,AH=41h"INT 13 Ext",AH=42h"INT 13 Ext",AH=44h
--------d-1344-------------------------------
INT 13 - IBM/MS INT 13 Extensions - VERIFY SECTORS
AH = 44h
DL = drive number
DS:SI -> disk address packet (see #0197)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #0159)
disk address packet's block count field set to number of blocks
successfully verified
SeeAlso: AH=04h,AH=41h"INT 13 Ext",AH=42h"INT 13 Ext",AH=47h
--------d-1345-------------------------------
INT 13 - IBM/MS INT 13 Extensions - LOCK/UNLOCK DRIVE
AH = 45h
AL = operation
00h lock media in drive
01h unlock media
02h check lock status
DL = drive number
Return: CF clear if successful
AH = 00h
AL = lock state (00h = unlocked)
CF set on error
AH = error code (see #0159)
Notes: this function is required to be supported for any removable drives
numbered 80h or higher
up to 255 locks may be placed on a drive, and the media will not
be physically unlocked until all locks have been removed
SeeAlso: AH=41h"INT 13 Ext",AH=46h,AH=49h,INT 15/AH=52h"INT 13 Extensions"
--------d-1346-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EJECT MEDIA
AH = 46h
AL = 00h (reserved)
DL = drive number
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #0159)
SeeAlso: AH=49h,INT 15/AH=52h"INT 13 Extensions"
--------d-1347-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED SEEK
AH = 47h
DL = drive number
DS:SI -> disk address packet (see #0197)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #0159)
SeeAlso: AH=0Ch,AH=42h"INT 13 Ext"
--------d-1348-------------------------------
INT 13 - IBM/MS INT 13 Extensions - GET DRIVE PARAMETERS
AH = 48h
DL = drive (80h-FFh)
DS:SI -> buffer for drive parameters (see #0198)
Return: CF clear if successful
AH = 00h
DS:SI buffer filled
CF set on error
AH = error code (see #0159)
SeeAlso: AH=08h,AH=41h,AH=49h
Format of IBM/MS INT 13 Extensions drive parameters:
Offset Size Description (Table 0198)
00h WORD (call) size of buffer (001Ah for v1.x, 001Eh for v2.x)
(ret) size of returned data
02h WORD information flags (see #0199)
04h DWORD number of physical cylinders on drive
08h DWORD number of physical heads on drive
0Ch DWORD number of physical sectors per track
10h QWORD total number of sectors on drive
18h WORD bytes per sector
---v2.0+ ---
1Ah DWORD -> EDD configuration parameters (see #0201)
FFFFh:FFFFh if not available
Note: if the size is less than 30 on call, the final DWORD will not be
returned by a v2.x implementation
SeeAlso: #0200,#2828
Bitfields for IBM/MS INT 13 Extensions information flags:
Bit(s) Description (Table 0199)
0 DMA boundary errors handled transparently
1 cylinder/head/sectors-per-track information is valid
2 removable drive
3 write with verify supported
4 drive has change-line support (required if drive >= 80h is removable)
5 drive can be locked (required if drive >= 80h is removable)
6 CHS information set to maximum supported values, not current media
15-7 reserved (0)
SeeAlso: #0198
Format of Phoenix Enhanced Disk Drive Spec translated drive parameter table:
Offset Size Description (Table 0200)
00h WORD number of cylinders
02h BYTE number of heads
03h BYTE A0h (signature indicating translated table)
04h BYTE number of physical sectors per track
05h WORD starting write precompensation cylinder number
07h BYTE reserved
08h BYTE control byte (see #2830 at INT 41"DISK 0")
09h WORD number of physical cylinders
0Bh BYTE number of physical heads
0Ch WORD cylinder number of landing zone
0Eh BYTE number of logical sectors per track
0Fh BYTE checksum
Program: the Phoenix Enhanced Disk Drive Specification is an addition to the
IBM/MS INT 13 extensions
SeeAlso: #0201,#2828
Format of Phoenix Enhanced Disk Drive Spec Fixed Disk Parameter Table:
Offset Size Description (Table 0201)
00h WORD physical I/O port base address
02h WORD disk-drive control port address
04h BYTE drive flags (see #0202)
05h BYTE proprietary information
bits 7-4 reserved (0)
bits 3-0: Phoenix proprietary (used by BIOS)
06h BYTE IRQ (bits 3-0; bits 7-4 reserved and must be 0)
07h BYTE sector count for multi-sector transfers
08h BYTE DMA control
bits 7-4: DMA type (0-2) as per ATA-2 specification
bits 3-0: DMA channel
09h BYTE programmed I/O control
bits 7-4: reserved (0)
bits 3-0: PIO type (1-4) as per ATA-2 specification
0Ah WORD drive options (see #0203)
0Ch 2 BYTEs reserved (0)
0Eh BYTE extension revision level (high nybble=major, low nybble=minor)
(currently 10h for v1.0 and 11h for v1.1)
0Fh BYTE 2's complement checksum of bytes 00h-0Eh
8-bit sum of all bytes 00h-0Fh should equal 00h
SeeAlso: #0200
Bitfields for Phoenix Enhanced Disk Drive Spec drive flags:
Bit(s) Description (Table 0202)
7 reserved (1)
6 LBA enabled
5 reserved (1)
4 drive is slave
3-0 reserved (0)
SeeAlso: #0201,#0203
Bitfields for Phoenix Enhanced Disk Drive Spec drive options:
Bit(s) Description (Table 0203)
0 fast PIO enabled
1 fast DMA access enabled
2 block PIO (multi-sector transfers) enabled
3 CHS translation enabled
4 LBA translation enabled
5 removable media
6 ATAPI device (CD-ROM)
7 32-bit transfer mode
---v1.1---
8 ATAPI device uses DRQ to signal readiness for packet command
(must be 0 if bit 6 is 0)
10-9 translation type (must be 00 if bit 3 is 0)
00 Phoenix bit-shifting translation
01 LBA-assisted translation
10 reserved
11 proprietary translation
15-8 reserved
SeeAlso: #0201,#0202
--------d-1349-------------------------------
INT 13 - IBM/MS INT 13 Extensions - EXTENDED MEDIA CHANGE
AH = 49h
DL = drive number
Return: CF clear if media has not changed
AH = 00h
CF set if media may have changed
AH = 06h (see #0159)
Note: unlike AH=16h, any drive number may be specified
SeeAlso: AH=16h,AH=41h"INT 13 Ext",AH=46h
--------d-134A-------------------------------
INT 13 - Bootable CD-ROM - INITIATE DISK EMULATION
AH = 4Ah
AL = 00h
DS:SI -> specification packet (see #0204)
Return: CF clear if successful
CF set on error (drive will not be in emulation mode)
AX = return codes
SeeAlso: AH=48h,AX=4B00h,AH=4Ch,AH=4Dh
Format of Bootable CD-ROM Specification Packet:
Offset Size Description (Table 0204)
00h BYTE size of packet in bytes (13h)
01h BYTE boot media type (see #0205)
02h BYTE drive number
00h floppy image
80h bootable hard disk
81h-FFh nonbootable or no emulation
03h BYTE CD-ROM controller number
04h DWORD Logical Block Address of disk image to emulate
08h WORD device specification (see also #0205)
(IDE) bit 0: drive is slave instead of master
(SCSI) bits 7-0: LUN and PUN
bits 15-8: bus number
0Ah WORD segment of 3K buffer for caching CD-ROM reads
0Ch WORD load segment for initial boot image
if 0000h, load at segment 07C0h
0Eh WORD number of 512-byte virtual sectors to load
(only valid for AH=4Ch)
10h BYTE low byte of cylinder count (for INT 13/AH=08h)
11h BYTE sector count, high bits of cylinder count (for INT 13/AH=08h)
12h BYTE head count (for INT 13/AH=08h)
SeeAlso: #0206,AH=08h
Bitfields for Bootable CD-ROM boot media type:
Bit(s) Description (Table 0205)
3-0 media type
0000 no emulation
0001 1.2M diskette
0010 1.44M diskette
0011 2.88M diskette
0100 hard disk (drive C:)
other reserved
5-4 reserved (0)
6 image contains ATAPI driver
7 image contains SCSI driver(s)
SeeAlso: #0204
--------d-134B00-----------------------------
INT 13 - Bootable CD-ROM - TERMINATE DISK EMULATION
AX = 4B00h
DL = drive number or 7Fh to terminate all emulations
DS:SI -> empty specification packet (see #0204)
Return: CF clear if successful
CF set on error (drive will still be in emulation mode)
AX = return codes
DS:SI specification packet filled
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch,AH=4Dh
--------d-134B01-----------------------------
INT 13 - Bootable CD-ROM - GET STATUS
AX = 4B01h
DL = drive number
DS:SI -> empty specification packet (see #0204)
Return: CF clear if successful
CF set on error
AX = return codes
DS:SI specification packet filled
Note: same as AX=4B00h, but does not terminate emulation
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch,AH=4Dh
--------d-134C-------------------------------
INT 13 - Bootable CD-ROM - INITIATE DISK EMULATION AND BOOT
AH = 4Ch
AL = 00h
DS:SI -> specification packet (see #0204)
Return: never, if successful
CF set (error while attempting to boot)
AX = error codes
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Dh
--------d-134D00-----------------------------
INT 13 - Bootable CD-ROM - RETURN BOOT CATALOG
AX = 4D00h
DS:SI -> command packet (see #0206)
Return: CF clear if successful
CF set on error
AX = return codes
SeeAlso: AH=48h,AH=4Ah,AX=4B00h,AH=4Ch
Format of Bootable CD-ROM "get boot catalog" command packet:
Offset Size Description (Table 0206)
00h BYTE size of packet in bytes (08h)
01h BYTE number of sectors of boot catalog to read
02h DWORD -> buffer for boot catalog
06h WORD first sector in boot catalog to transfer
SeeAlso: #0204
--------d-134E-------------------------------
INT 13 - IBM/MS INT 13 Extensions v2.1 - SET HARDWARE CONFIGURATION
AH = 4Eh
AL = function
00h enable prefetch
01h disable prefetch
02h set maximum PIO transfer mode
03h set PIO mode 0
04h set default PIO transfer mode
05h enable INT 13 DMA maximum mode
06h disable INT 13 DMA
DL = drive number
Return: CF clear if successful
AH = 00h
AL = status
00h command was safe (only affected specified drive)
01h other devices are affected
CF set on error
AH = error code (see #0159)
Note: DMA and PIO modes are mutually exclusive, so selecting DMA disables
PIO (for either the specified device or all devices on that
controller), and selecting PIO disables DMA
SeeAlso: AH=41h"INT 13 Extensions"
--------v-135001------------------------
INT 13 - VIRUS - "Andropinis" - INSTALLATION CHECK
AX = 5001h
Return: AX = 0150h if resident
SeeAlso: AX=FD50h"VIRUS",INT 21/AX=0B56h
--------v-135342CX0001-----------------------
INT 13 - ScanBoot - INSTALLATION CHECK
AX = 5342h ("SB")
CX = 0001h
DX = 0000h
Return: CF clear if ScanBoot installed
AX = 0000h
CX = serial number ("SW" if shareware release)
DX = version
BX,SI,ES destroyed
Program: ScanBoot is a virus-detection TSR by PanSoft
--------d-135501-----------------------------
INT 13 - Seagate ST01/ST02 - Inquiry
AX = 5501h
DH = number of bytes to transfer
DL = drive ID (80h, 81h, ...)
ES:BX -> buffer for results
Return: ES:BX buffer filled with the Inquiry results
Notes: the ST01/ST02 BIOS does not return any success/failure indication,
so all commands must be assumed to have been successful
the ST01/ST02 BIOS always maps its drives after the previous BIOS
drives without changing the BIOS drive count at 0040h:0075h
this command is identical to the SCSI Inquiry command
--------d-135502-----------------------------
INT 13 - Seagate ST01/ST02 - RESERVED
AX = 5502h
--------d-135503-----------------------------
INT 13 - Seagate ST01/ST01 - Set Device Type Qualifier (DTQ)
AX = 5503h
DH = DTQ byte (see #0207)
DL = drive ID (80h, 81h, ...)
Return: nothing
Bitfields for DTQ byte:
Bit(s) Description (Table 0207)
7 reserved
6 SCSI drive attached
5 reserved
4 selected drive is ST225N/NP (Paired)
3 selected drive is ST225N
2 Host Adapter checks parity on the selected drive
1 selected drive has been installed
0 Seagate installation software present
--------d-135504-----------------------------
INT 13 U - Seagate - ??? - RETURN IDENTIFICATION
AX = 5504h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
AX = 4321h if ST01/ST02h
AX = 4322h if ??? Seagate controller
CF set on error
SeeAlso: AX=5505h,AX=5514h
--------d-135504-----------------------------
INT 13 - Seagate ST01/ST02 - RETURN IDENTIFICATION
AX = 5504h
DL = drive ID (80h, 81h, ...)
Return: AX = 4321h
BL = selected drive number (00h, 01h)
BH = number of drives attached to Host Adapter (max. 2)
--------d-135505-----------------------------
INT 13 - Seagate - ??? - PARK HEADS
AX = 5505h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
CF set on error
SeeAlso: AX=5504h,AX=5515h
--------d-135505-----------------------------
INT 13 - Seagate ST01/ST02 - PARK HEADS
AX = 5505h
DL = drive ID (80h, 81h, ...)
DH = subfunction
00h park heads (SCSI Stop command)
01h un-park heads (SCSI Start command)
Return: nothing
--------d-135506-----------------------------
INT 13 - Seagate ST01/ST02 - SCSI Bus Parity
AX = 5506h
DL = drive ID (80h, 81h, ...)
DH = subfunction
00h disable parity check
01h enable parity check
02h return current parity setting
Return: AL = status
00h parity checking disabled
01h parity checking enabled
--------d-135507-----------------------------
INT 13 - Seagate ST01/ST02 - RESERVED FUNCTIONS
AX = 5507h to 550Dh
Note: officially listed as "reserved"
--------d-135514-----------------------------
INT 13 U - Seagate - ???
AX = 5514h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
CF set on error
AX = return value (FEBEh,FEBFh,FEDAh,FEDBh)
SeeAlso: AX=5504h,AX=5515h
--------d-135515-----------------------------
INT 13 U - Seagate - PARK HEADS???
AX = 5515h
DX = drive (bit 7 set for hard disk)
Return: CF clear if successful
CF set on error
Note: appears to be identical to AX=5505h
SeeAlso: AX=5504h,AX=5505h
--------d-1359-------------------------------
INT 13 - SyQuest - Generic SCSI pass through
AH = 59h
CX = HOST_ID, 0-based
DX = 80h
ES:BX pointer to SCSI structure (see #0208)
Return: CF clear
AH = 95h
SeeAlso: AH=12h"SyQuest",AH=13h"SyQuest",AH=1Fh"SyQuest"
Format of SyQuest SCSI structure:
Offset Size Description (Table 0208)
00h WORD opcode (see #0209)
02h BYTE target's SCSI ID
03h BYTE target's logical unit number
04h BYTE data direction (00h no data xfer, 01h data in, FFh data out)
05h BYTE host status
00h successful
01h selection time out
02h data over-run or under-run
06h BYTE target status at command completion
00h successful
02h check status
08h busy
07h BYTE command data block length
08h DWORD request data length
0Ch DWORD result data length (actual length of data transferred)
10h DWORD -> CDB (see #2868,#2869,#2870)
14h DWORD -> data buffer
Note: The handler does not perform a 'Request Sense' command if there was an
error
(Table 0209)
Values for SCSI opcode:
00h verify interface
clears carry flag and returns if function is available
01h returns the ID of the INT 13h Handler in a NULL terminated string of
length less than 40 byte including the terminator.
The string is stored in the buffer pointed by p_buf.
02h device mapping info. The caller provides a one byte buffer.
The handler stores the Int 13h Device ID (80h or above) in the buffer.
It stores 0 if that target does not exists.
03h execute SCSI command
04h device reset
05h SCSI bus reset
SeeAlso: #0208
--------d-1370-------------------------------
INT 13 - Priam EDVR.SYS DISK PARTITIONING SOFTWARE???
AH = 70h
???
Return: ???
Note: Priam's EDISK.EXE (FDISK replacement) and EFMT.EXE (low-level
formatting program) make this call, presumably to EDVR.SYS (the
partitioning driver)
SeeAlso: AH=ADh
----------1375-------------------------------
INT 13 - ???
AH = 75h
???
Return: AH = ???
???
Note: intercepted by PC-Cache (v5.1 only)
----------1376-------------------------------
INT 13 - ???
AH = 76h
???
Return: AH = ???
???
Note: intercepted by PC-Cache (v5.1 only)
--------c-137B00-----------------------------
INT 13 - NOW! v3.05 - GET INFORMATION
AX = 7B00h
CX:DX -> 1F8h-byte buffer for information record (see #0210)
Return: AX = 0000h
BX = segment of main resident code
ES = ???
Program: NOW! is a disk cache by Vertisoft Systems, Inc.
SeeAlso: AX=7B02h,AH=EFh
Format of NOW! information record:
Offset Size Description (Table 0210)
00h 80 BYTEs name of directory from which NOW! was started
50h 424 BYTEs ???
81h ? BYTEs array of bytes for ???
F7h 250 BYTEs array of 25 entries, one per drive???
Offset Size Description
00h 2 BYTEs ???
02h WORD ???
04h WORD ???
06h 4 BYTEs ???
1F1h 7 BYTEs ???
--------c-137B01-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B01h
Return: DX = segment of ???
SeeAlso: AX=7B00h
--------c-137B02-----------------------------
INT 13 - NOW! v3.05 - SET INFORMATION
AX = 7B02h
BX = segment of ??? (10h above a PSP)
CX:DX -> 1F8h-byte information record (see #0210)
Return: ???
Program: NOW! is a disk cache by Vertisoft Systems, Inc.
Note: NOW! grabs the INT 24h value from the PSP reached via the segment in
BX
SeeAlso: AX=7B00h
--------c-137B03-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B03h
???
Return: ???
SeeAlso: AX=7B00h,AX=7B04h
--------c-137B04-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B04h
???
Return: ???
SeeAlso: AX=7B03h
--------c-137B05-----------------------------
INT 13 - NOW! v3.05 - GET DISK ACCESSES???
AX = 7B05h
Return: BX:AX = number of physical accesses???
DX:CX = total disk accesses???
SeeAlso: AX=7B00h,AX=7B06h
--------c-137B06-----------------------------
INT 13 - NOW! v3.05 - GET ???
AX = 7B06h
BX = ???
Return: AX = 0000h
BX = ???
SeeAlso: AX=7B05h,AX=7B07h
--------c-137B07-----------------------------
INT 13 - NOW! v3.05 - GET ???
AX = 7B07h
Return: AX = ???
BX = ???
CX = ???
DX = ???
SeeAlso: AX=7B06h
--------c-137B08-----------------------------
INT 13 - NOW! v3.05 - ???
AX = 7B08h
CX = ??? (default 00h)
Return: ???
SeeAlso: AX=7B00h
--------c-1380--CX6572-----------------------
INT 13 - FAST! v4.02+ - API
AH = 80h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #0212)
AL = function number (see #0211)
Return: AH = status (except function 06h)
00h if successful
01h invalid function
05h not supported by the installed variant
CF clear if successful
CF set on error
AL may be destroyed
Program: FAST! is a disk cache by Future Computing Systems and marketed by
BLOC Publishing Corp.
SeeAlso: AX=8001h,AX=8006h,AX=8007h
Index: hotkeys;FAST!
(Table 0211)
Values for FAST! function:
01h get cache information (see AX=8001h)
04h disable cache
05h enable cache and reset statistics
06h installation check (see AX=8006h)
07h unhook interrupts (see AX=8007h)
09h flush cache
0Ah (v4.02+) enable staged writes
0Bh (v4.02+) disable staged writes
0Ch (v4.02+) enable beep on flush
0Dh (v4.02+) disable beep on flush
0Eh ???
0Fh ???
10h (v4.12+) enable hotkeys
11h (v4.12+) disable hotkeys
12h (v4.13+) set idle delay
13h (v4.13+) set flush dirty percentage
14h (v5.00+) enable mouse checks
15h (v5.00+) disable mouse checks
16h (v5.00d+) reduce cache size to minimum
17h (v5.00d+) increase cache size to maximum
Format of FAST! request packet:
Offset Size Description (Table 0212)
00h DWORD pointer to 19-byte signature string (see #0213)
04h DWORD pointer to buffer for data (if needed by function)
(Table 0213)
Values for FAST! v4.04-v5.03 signature string:
13h 07h 06h 08h 11h 18h 0Fh 0Eh 02h 18h 13h 08h 0Bh 08h 01h 00h 04h 08h 15h
--------c-138001CX6572-----------------------
INT 13 - FAST! v4.02+ - GET CACHE INFORMATION
AX = 8001h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #0214)
Return: AH = 00h if successful
SeeAlso: AH=80h,AX=8006h
Format of FAST! request packet:
Offset Size Description (Table 0214)
00h DWORD -> 19-byte signature string (see #0213)
04h DWORD -> buffer for cache information (see #0215)
Format of FAST! cache information (v5.00-5.03):
Offset Size Description (Table 0215)
00h WORD binary version number of FAST! (v5.00 = 01F4h)
02h BYTE revision letter (61h = X.XXa, 62h = X.XXb, etc.)
03h BYTE FAST! variant
(01h = FASTE, 02h = FASTX BIOS, 04h = FASTC, 20h = FASTX XMS)
04h DWORD total number of read requests
08h DWORD number of physical disk reads
0Ch DWORD grabbed hash buckets
10h DWORD "st_386mem"
14h DWORD total number of writes (only counted when staging enabled)
18h DWORD number of physical disk writes (only when staging enabled)
1Ch DWORD number of write errors while flushing cache
20h WORD flags1 (see #0216)
22h WORD flags
bit 0: ???
bit 1: staged writes enabled
24h WORD ???
26h WORD maximum cache size in KB
28h WORD minimum cache size in KB
2Ah WORD segment of first cache buffer (FASTC)
segment of EMS page frame (FASTE)
XMS handle (FASTX XMS)
2Ch WORD number of hash buckets containing no entries
2Eh WORD number of hash buckets containing one entry
30h WORD number of hash buckets containing two entries
32h WORD number of hash buckets containing three entries
34h WORD number of hash buckets containing four entries
36h WORD number of hash buckets containing five entries
38h WORD maximum contiguous sectors
3Ah WORD hash factor
3Ch WORD number of paragraphs of memory used below 1M
3Eh WORD entries per hash bucket
40h WORD idle delay in seconds
42h 2 BYTEs ???
44h WORD staged write threshold percentage
46h 2 BYTEs ???
48h WORD number of dirty sectors
4Ah WORD number of staged write buffers
4Ch WORD current cache size in KB
4Eh WORD beep frequency in Hz
50h WORD ???
52h WORD ???
Bitfields for FAST! flags1:
Bit(s) Description (Table 0216)
0 beep on flush
3 hotkeys enabled
4 mouse idle check enabled
8 caching enabled
13 ???
--------c-138006CX6572-----------------------
INT 13 - FAST! v4.02+ - INSTALLATION CHECK
AX = 8006h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #0217)
Return: AX = 1965h if installed
SeeAlso: AH=80h,AX=8001h,AX=8007h
Format of FAST! request packet:
Offset Size Description (Table 0217)
00h DWORD -> 19-byte signature string (see #0213)
--------c-138007CX6572-----------------------
INT 13 - FAST! v4.02+ - UNHOOK INTERRUPTS
AX = 8007h
CX = 6572h
DX = 1970h
ES:BX -> request packet (see #0218)
Return: AX = 1965h if installed
SeeAlso: AH=80h,AX=8006h
Index: uninstall;FAST!
Format of FAST! request packet:
Offset Size Description (Table 0218)
00h DWORD -> 19-byte signature string (see #0213)
--------c-1381--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 81h
SI = 4358h
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (PC-Cache v5.1 corresponds
to PC-Kwik v3.20 and PC-Cache v5.5 to PC-Kwik v3.27)
returns immediately in PC-Cache v5.x
Index: PC-Cache|Qualitas Qcache
--------c-1382--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 82h
SI = 4358h
???
Return: AL = ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call
SeeAlso: AH=84h
Index: PC-Cache|Qualitas Qcache
--------c-1383--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 83h
SI = 4358h
AL = ???
ES:BX -> ???
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call
SeeAlso: AH=85h
Index: PC-Cache|Qualitas Qcache
--------c-1384--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 84h
SI = 4358h
AL = ???
???
Return: AL = ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call
SeeAlso: AH=82h
Index: PC-Cache|Qualitas Qcache
--------c-1385--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = 85h
SI = 4358h
AL = ???
DL = ???
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (PC-Cache v5.1 corresponds
to PC-Kwik v3.20)
SeeAlso: AH=83h
Index: PC-Cache|Qualitas Qcache
--------c-1386--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
AH = 86h
SI = 4358h
???
Return: ???
Note: Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
thus supports this call
Index: Qualitas Qcache
--------c-1387--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
AH = 87h
SI = 4358h
???
Return: AH = status??? (00h)
CX = ???
DX = ??? (0000h)
Note: Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
thus supports this call
Index: Qualitas Qcache
--------c-1388--SI4358-----------------------
INT 13 - Super PC-Kwik v4.00+ - ???
AH = 88h
SI = 4358h
???
Return: AH = status??? (00h)
CX = ???
DX = ??? (0000h)
Note: Qualitas Qcache v4.00 is an OEM version of Super PC-Kwik v4.00, and
thus supports this call
Index: Qualitas Qcache
--------c-1389--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 89h
SI = 4358h
???
Return: ???
--------c-138A--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 8Ah
SI = 4358h
???
Return: ???
--------c-138EED-----------------------------
INT 13 - HyperDisk v4.01+ - ???
AX = 8EEDh
???
Return: ???
Program: HyperDisk is a shareware disk cache by HyperWare (Roger Cross)
SeeAlso: AX=8EEEh,AX=8EEFh,AH=EEh,INT 2F/AX=DF00h
--------c-138EEE-----------------------------
INT 13 - HyperDisk v4.01+ - ???
AX = 8EEEh
Return: CF set
AX = CS of HyperDisk resident code
???
Note: identical to AX=8EEFh in HYPERDKX v4.21-4.30
SeeAlso: AX=8EEDh,AX=8EEFh,AH=EEh
--------c-138EEF-----------------------------
INT 13 - HyperDisk v4.01+ - ???
AX = 8EEFh
Return: CF set
AX = CS of HyperDisk resident code
???
Note: identical to AX=8EEEh in HYPERDKX v4.21-4.30
SeeAlso: AX=8EEDh,AX=8EEEh,AH=EEh
--------c-1392--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 92h
SI = 4358h
???
Return: AH = status??? (00h)
DL = ???
SeeAlso: AH=93h
--------c-1393--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 93h
SI = 4358h
???
Return: AH = status??? (00h)
AL = ???
SeeAlso: AH=92h
--------c-1394--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 94h
SI = 4358h
???
Return: ???
--------c-1395--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 95h
SI = 4358h
???
Return: AH = status??? (00h)
DX = ???
--------c-1396--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 96h
SI = 4358h
AL = ??? (01h)
BX = ??? (0790h)
DL = ???
Return: AH = status??? (00h)
DX = ???
--------c-1397--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 97h
SI = 4358h
???
Return: ???
--------c-1398--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 98h
SI = 4358h
???
Return: ???
--------c-1399--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 99h
SI = 4358h
???
Return: ???
--------c-139A--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Ah
SI = 4358h
???
Return: ???
--------c-139B--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Bh
SI = 4358h
???
Return: ???
--------c-139C--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Ch
SI = 4358h
???
Return: ???
Note: functions 9Ch and 9Dh are the only ones which are fully reentrant; all
other PC-Kwik API calls (INT 13/81h-B0h) return AX=0200h and CF clear
if a previous call is still in progress
--------c-139D--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = 9Dh
SI = 4358h
???
Return: ???
--------c-13A0--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - GET RESIDENT CODE SEGMENT
AH = A0h
SI = 4358h
Return: AX = segment of resident code
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (note that PC-Cache v5.5
corresponds to PC-Kwik v3.27)
SeeAlso: INT 16/AX=FFA5h/CX=1111h
Index: PC-Cache|Qualitas Qcache
--------c-13A1--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - FLUSH CACHE
AH = A1h
SI = 4358h
Return: CF clear
AH = 00h (v5.10)
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
corresponds to PC-Kwik v3.20)
SeeAlso: INT 16/AX=FFA5h/CX=FFFFh
Index: PC-Cache|Qualitas Qcache
--------c-13A2--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = A2h
SI = 4358h
???
Return: ???
Note: PC Tools PC-Cache 5.x and Qualitas Qcache 4.00 are OEM versions of
Super PC-Kwik, and thus support this call (note that PC-Cache v5.1
corresponds to PC-Kwik v3.20)
Index: PC-Cache|Qualitas Qcache
--------c-13A3--SI4358-----------------------
INT 13 U - Super PC-Kwik v5.10+ - DISABLE CACHE
AH = A3h
SI = 4358h
Return: CF clear
SeeAlso: AH=A4h
--------c-13A4--SI4358-----------------------
INT 13 U - Super PC-Kwik v5.10+ - ENABLE CACHE
AH = A4h
SI = 4358h
Return: CF clear
SeeAlso: AH=A3h
--------c-13A5--SI4358-----------------------
INT 13 CU - Super PC-Kwik v5.10+ - PROGRAM TERMINATION NOTIFICATION
AH = A5h
SI = 4358h
Return: AX = ???
SI = ???
Notes: called and used internally by Super PC-Kwik when a program terminates
via INT 21/AH=00h, INT 21/AH=31h, or INT 21/AH=4Ch
this call is not supported by Qualitas Qcache 4.00
Index: PC-Cache
SeeAlso: AH=A6h,AH=A9h,INT 21/AH=00h,INT 21/AH=31h,INT 21/AH=4Ch
--------c-13A6--SI4358-----------------------
INT 13 CU - Super PC-Kwik v5.10+ - PROGRAM LOAD NOTIFICATION
AH = A6h
SI = 4358h
DS:DX -> ASCIZ program name
ES:BX -> EXEC data block (see #1242 at INT 21/AH=4Bh)
Return: ???
Note: called and used internally by Super PC-Kwik when a program is loaded
with INT 21/AX=4B00h
SeeAlso: AH=A5h,AH=A9h,INT 21/AH=4Bh
--------c-13A7--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - ???
AH = A7h
SI = 4358h
Return: ???
Note: called and used internally by Super PC-Kwik on some INT 21 calls
SeeAlso: AH=A5h,AH=A6h,AH=A8h
--------v-13A759-----------------------------
INT 13 U - Novell DOS 7 - SDRes v27.03 - ???
AX = A759h
Return: AX = 59A7h if installed
DX:BX -> ??? data
Program: SDRes is the resident portion of the Search&Destroy antiviral by
Fifth Generation Systems, as bundled with Novell DOS 7
SeeAlso: INT 21/AH=0Eh/DL=ADh
--------c-13A8--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - ???
AH = A8h
SI = 4358h
Return: ???
Note: called and used internally by Super PC-Kwik on some INT 21 calls
SeeAlso: AH=A5h,AH=A6h,AH=A7h
--------c-13A9--SI4358-----------------------
INT 13 CU - Super PC-Kwik 5.1 - EXITCODE RETRIEVAL NOTIFICATION
AH = A9h
SI = 4358h
Return: ???
Note: called and used internally by Super PC-Kwik when an application issues
INT 21/AH=4Dh
SeeAlso: AH=A5h,AH=A6h,INT 21/AH=4Dh
--------c-13AA--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = AAh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------c-13AB--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = ABh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------c-13AC--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = ACh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------d-13AD-------------------------------
INT 13 - Priam HARD DISK CONTROLLER???
AH = ADh
???
Return: ???
Note: this call is made from Priam's EFMT.EXE (low-level formatter), probably
to check the ROM type on the controller for their hard disk kits
SeeAlso: AH=70h
--------c-13AD--SI4358-----------------------
INT 13 - Super PC-Kwik v4+ - ???
AH = ADh
SI = 4358h
???
Return: ???
Note: Qualitas Qcache is an OEM version of Super PC-Kwik, and thus supports
this call
--------c-13AE--SI4358-----------------------
INT 13 - Super PC-Kwik v5.10+ - ???
AH = AEh
SI = 4358h
???
Return: ???
--------c-13B0--SI4358-----------------------
INT 13 - Super PC-Kwik v3.20+ - ???
AH = B0h
SI = 4358h
???
Return: ???
Note: PC Tools PC-Cache 5.x is an OEM version of Super PC-Kwik, and thus
supports this call; Qualitas Qcache does not support it
Index: PC-Cache
--------v-13EC00-----------------------------
INT 13 - VIRUS - "Tiso" - INSTALLATION CHECK
AX = EC00h
Return: CF clear if installed
SeeAlso: AH=F2h,INT 12/AX=4350h/BX=4920h
--------d-13EE-------------------------------
INT 13 - SWBIOS - SET 1024-CYLINDER FLAG
AH = EEh
DL = drive number (80h, 81h)
Return: CF clear
AH = 00h
Program: SWBIOS is a TSR by Ontrack Computer Systems
Desc: the following INT 13 call will add 1024 to the specified cylinder
number to get the actual cylinder number desired
Notes: the flag is cleared by all INT 13 calls except AH=EEh and AH=EFh
Disk Manager also supports these calls
this function is also supported by HyperDisk v4.01+ and PC-Cache v5.5+,
in order to allow caching of drives using SWBIOS to access more than
1024 cylinders
for software which supports that call, this function is equivalent to
calling AH=EFh with CX=0400h
SeeAlso: AH=F9h,AH=FEh,INT 16/AX=FFA5h/CX=1111h,INT 2F/AX=DF00h
Index: PC-Cache;huge disks|Disk Manager
--------c-13EF-------------------------------
INT 13 - Ontrack Drive Rocket - SET CYLINDER OFFSET
AH = EFh
CX = cylinder offset for next INT 13 call
DL = drive number (80h, 81h)
Return: CF clear
AH = 00h
Program: Drive Rocket is a drive accelerator by Ontrack Computer Systems for
IDE drives supporting the read multiple and write multiple commands
Desc: the following INT 13 call will add the number given by this call to
the specified cylinder to get the actual cylinder number, then reset
the offset to zero
Note: this function is also supported by the NOW! disk cache, and presumably
newer versions of SWBIOS and Disk Manager
for software which supports this call, AH=EEh is equivalent to calling
this function with CX=0400h
the cylinder offset is reset to 0 by all INT 13 called except AH=EEh
and AH=EFh
SeeAlso: AX=7B00h
--------v-13F2-------------------------------
INT 13 - VIRUS - "Neuroquila" - INSTALLATION CHECK
AH = F2h
Return: CF ??? if installed
SeeAlso: AX=EC00h,INT 12/AX=4350h/BX=4920h,INT 21/AX=0B56h
--------d-13F9-------------------------------
INT 13 - SWBIOS - INSTALLATION CHECK
AH = F9h
DL = drive number (80h,81h)
Return: CF clear
DX = configuration word
bit 15 set if other SWBIOS extensions available
CF set on error
Program: SWBIOS is a TSR by Ontrack Computer Systems
Note: Disk Manager also supports these calls
SeeAlso: AH=EEh
Index: Disk Manager
--------v-13FA--DX5945-----------------------
INT 13 - PC Tools v8+ VSAFE, VWATCH - API
AH = FAh
DX = 5945h
AL = function (00h-07h)
Return: varies by function
if not installed:
CF set
AH = 01h
Note: this API is identical to the ones on INT 16/AH=FAh and INT 21/AH=FAh,
so it is listed in its entirety under INT 16/AX=FA00h and following
SeeAlso: INT 16/AX=FA00h
--------v-13FD50------------------------
INT 13 - VIRUS - "Predator" - INSTALLATION CHECK
AX = FD50h
Return: AX = 50FDh if resident
SeeAlso: AX=5001h"VIRUS",INT 16/AH=DDh"VIRUS"
--------d-13FE-------------------------------
INT 13 - SWBIOS - GET EXTENDED CYLINDER COUNT
AH = FEh
DL = drive number (80h, 81h)
Return: CF clear
DX = number of cylinders beyond 1024 on drive
Program: SWBIOS is a TSR by Ontrack Computer Systems
Notes: standard INT 13/AH=08h will return a cylinder count truncated to 1024
BIOS without this extension would return count modulo 1024
Disk Manager also supports these calls
SeeAlso: AH=EEh
----------13FF-------------------------------
INT 13 - Windows95 - ???
AH = FFh
DL - drive number (80h)
Return: ???
Note: this function is called by the Windows95 Master Boot Record
--------B-13FF-------------------------------
INT 13 - IBM SurePath BIOS - Officially "Private" Function
AH = FFh
--------U-13FFFFBHAA-------------------------
INT 13 - UNIQUE UX Turbo Utility - SET TURBO MODE
AX = FFFFh
BH = AAh
BL = subfunction
00h installation check
Return: AX = 1234h if installed
01h turn on Turbo mode
02h turn off Turbo mode
03h set Turbo mode according to hardware switch
04h set disk access to Turbo mode
05h set disk access to Normal mode
Return: nothing
SeeAlso: INT 15/AH=DFh
Index: installation check;UNIQUE UX Turbo Utility
--------S-14---------------------------------
INT 14 - SERIAL - Digiboard DigiCHANNEL PC/X* Extender INT 14 (XAPCM232.SYS)
Note: the installation check for this driver is to determine whether the
"~DOSXAM~" character device exists
Index: installation check;Digiboard DigiCHANNEL
--------S-1400-------------------------------
INT 14 - SERIAL - INITIALIZE PORT
AH = 00h
AL = port parameters (see #0219)
DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #0223)
FFh if error on Digiboard XAPCM232.SYS
AL = modem status (see #0224)
Notes: default handler is at F000h:E739h in IBM PC and 100% compatible BIOSes
since the PCjr supports a maximum of 4800 bps, attempting to set 9600
bps will result in 4800 bps
various network and serial-port drivers support the standard BIOS
functions with interrupt-driven I/O instead of the BIOS's polled I/O
the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=04h"SERIAL",AH=04h"MultiDOS",AH=05h"SERIAL",AH=57h
SeeAlso: AX=8000h"ARTICOM",AH=81h"COMM-DRV",AH=82h"COURIERS",AH=8Ch
SeeAlso: MEM 0040h:0000h,PORT 03F8h"Serial"
Bitfields for serial port parameters:
Bit(s) Description (Table 0219)
7-5 data rate (110,150,300,600,1200,2400,4800,9600 bps)
4-3 parity (00 or 10 = none, 01 = odd, 11 = even)
2 stop bits (set = 2, clear = 1)
1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
SeeAlso: #0221,#0226,#0227,#0228
--------S-1400-------------------------------
INT 14 - FOSSIL (Fido/Opus/Seadog Standard Interface Level) - INITIALIZE
AH = 00h
AL = initializing parameters
7 - 6 - 5 4 - 3 2 1 - 0
-BAUD RATE- PARITY STOP WORD
BITS LENGTH
000 19200 bd 00 none 0: 1 00: 5
001 38400 bd 01 odd 1: 2 01: 6
010 300 bd 11 even 10: 7
011 600 bd 11: 8
100 1200 bd
101 2400 bd
110 4800 bd
111 9600 bd (4800 on PCjr)
DX = port number (0-3 or FFh if only performing non-I/O setup)
Return: AH = RS-232 status code bits (see #0220)
AL = modem status bits
bit 3: always 1
bit 7: DCD - carrier detect
SeeAlso: #0219,AH=05h"FOSSIL",AH=81h"COMM-DRV",AH=82h"COURIERS"
Bitfields for FOSSIL RS-232 status:
Bit(s) Description (Table 0220)
0 RDA - input data is available in buffer
1 OVRN - data has been lost
5 THRE - room is available in output buffer
6 TSRE - output buffer empty
--------S-1400-------------------------------
INT 14 - Tandy 2000 - SERIAL - RESET COMM PORT
AH = 00h
AL = RS-232C parameters (see #0221)
DL = port number
DH = protocol
bit 0: use XON/XOFF on received data
bit 1: use XON/XOFF when transmitting
Return: AH = line status (see #0223)
AL = modem status (see #0224)
Note: this interrupt is identical to INT 53 on the Tandy 2000
SeeAlso: AH=04h"Tandy 2000",INT 53"Tandy 2000"
--------S-1400-------------------------------
INT 14 - MBBIOS - INITIALIZE PORT
AH = 00h
AL = port parameters (see #0221)
DX = port number
Return: AH = line status (see #0223)
AL = modem status (see #0224)
Note: MBBIOS was written by H. Roy Engehausen
SeeAlso: AH=04h"MBBIOS",AH=05h"MBBIOS",AH=09h"MBBIOS"
Bitfields for MBBIOS port parameters:
Bit(s) Description (Table 0221)
7-5 data rate
(normally 110,150,300,600,1200,2400,4800,9600 bps;
9600,14400,19200,28800,38400,57600,115200,330400 bps
if the high-speed option is set)
4-3 parity (00 or 10 = none, 01 = odd, 11 = even)
2 stop bits (set = 2, clear = 1)
1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)
SeeAlso: #0219
--------N-1400--DXFFFF-----------------------
INT 14 - Connection Manager - MODIFY DEFAULT CONNECTION PARAMETERS
AH = 00h
DX = FFFFh
ES:DI -> vector string specifying new parameters
Return: AH = return code (00h,03h) (see #0222)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Note: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
SeeAlso: AH=04h/DX=FFFFh,AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh
(Table 0222)
Values for Connection Manager return code:
00h successful
01h no such connection
02h invalid connection ID
03h invalid subvector found
04h communication error (check BH)
06h insufficient resources, retry later
FFh no data available
--------S-1401-------------------------------
INT 14 - SERIAL - WRITE CHARACTER TO PORT
AH = 01h
AL = character to write
DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH bit 7 clear if successful
AH bit 7 set on error
AH bits 6-0 = port status (see #0223)
Notes: various network and serial-port drivers support the standard BIOS
functions with interrupt-driven I/O instead of the BIOS's polled I/O
the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=02h,AH=0Bh"FOSSIL",AX=8000h"ARTICOM",AH=89h
--------N-1401--DXFFFF-----------------------
INT 14 - Connection Manager - SEND CHARACTER
AH = 01h
DX = FFFFh
BH = character to send
Return: AH = return code (00h-02h,06h) (see #0222)
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
this function is provided primarily for compatibility; AH=06h/DX=FFFFh
is the preferred function because it provides better performance
SeeAlso: AH=02h/DX=FFFFh,AH=06h/DX=FFFFh,AH=09h/DX=FFFFh
--------S-1402-------------------------------
INT 14 - SERIAL - READ CHARACTER FROM PORT
AH = 02h
AL = 00h (ArtiCom)
DX = port number (00h-03h (04h-43h for Digiboard XAPCM232.SYS))
Return: AH = line status (see #0223)
AL = received character if AH bit 7 clear
Notes: will timeout if DSR is not asserted, even if function 03h returns
data ready
various network and serial-port drivers support the standard BIOS
functions with interrupt-driven I/O instead of the BIOS's polled I/O
the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=01h,AH=02h"FOSSIL",AH=84h,AH=FCh
--------S-1402-------------------------------
INT 14 - FOSSIL - RECEIVE CHARACTER WITH WAIT
AH = 02h
DX = port number (0-3)
Return: AL = character received
AH = 00h
SeeAlso: AH=01h,AH=02h"SERIAL"
--------N-1402--DXFFFF-----------------------
INT 14 - Connection Manager - RECEIVE CHARACTER
AH = 02h
DX = FFFFh
BH = character to send
Return: AH = return code (00h-02h,04h,FFh) (see #0222)
BH = line status (see #0223)
AL = received character (if any)
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
this function is provided primarily for compatibility; AH=07h/DX=FFFFh
is the preferred function because it provides better performance
SeeAlso: AH=02h/DX=FFFFh,AH=03h/DX=FFFFh,AH=06h/DX=FFFFh
--------S-1403-------------------------------
INT 14 - SERIAL - GET PORT STATUS
AH = 03h
AL = 00h (ArtiCom)
DX = port number (00h-03h) (04h-43h for Digiboard XAPCM232.SYS)
Return: AH = line status (see #0223)
AL = modem status (see #0224)
AX = 9E00h if disconnected (ArtiCom)
Note: the 04/08/93 Compaq system ROM uses only the low two bits of DX
SeeAlso: AH=00h,AH=07h"MultiDOS",AX=8000h"ARTICOM",AH=81h"COURIERS",AX=FD02h
Bitfields for serial line status:
Bit(s) Description (Table 0223)
7 timeout
6 transmit shift register empty
5 transmit holding register empty
4 break detected
3 framing error
2 parity error
1 overrun error
0 receive data ready
Note: for COMM-DRV, if bit 7 is set, an error occurred, and may be retrieved
through a separate call (see AX=8000h"COMM-DRV")
Bitfields for modem status:
Bit(s) Description (Table 0224)
7 carrier detect
6 ring indicator
5 data set ready
4 clear to send
3 delta carrier detect
2 trailing edge of ring indicator
1 delta data set ready
0 delta clear to send
--------N-1403--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN COMMUNICATION PORT STATUS
AH = 03h
DX = FFFFh
AL = connection ID
Return: AH = return code (00h-02h) (see #0222)
BH = line status (see #0225)
BL = modem status (see #0224) (only bits 4,5,7; all others zero)
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
SeeAlso: AH=00h/DX=FFFFh,AH=04h/DX=FFFFh,AH=0Ah/DX=FFFFh
Bitfields for Connection Manager line status:
Bit(s) Description (Table 0225)
7 CTS changed
6 current CTS state
5 timeout
4 break
3 framing error
2 parity error
1 overrun
0 current carrier state (0 active, 1 no carrier)
--------S-1404-------------------------------
INT 14 - SERIAL - EXTENDED INITIALIZE (CONVERTIBLE,PS)
AH = 04h
AL = break status
00h if break
01h if no break
BH = parity (see #0226)
BL = number of stop bits
00h one stop bit
01h two stop bits (1.5 if 5 bit word length)
CH = word length (see #0227)
CL = bps rate (see #0228)
DX = port number
Return: AX = port status code (see #0223,#0224)
SeeAlso: AH=00h,AH=1Eh,AX=8000h"ARTICOM"
(Table 0226)
Values for serial port parity:
00h no parity
01h odd parity
02h even parity
03h stick parity odd
04h stick parity even
SeeAlso: #0219,#0227,#0228,#0229
(Table 0227)
Values for serial port word length:
00h 5 bits
01h 6 bits
02h 7 bits
03h 8 bits
SeeAlso: #0219,#0226,#0228,#0264
(Table 0228)
Values for serial port bps rate:
00h 110 (19200 if ComShare installed)
01h 150 (38400 if ComShare installed)
02h 300
03h 600 (14400 if ComShare installed)
04h 1200
05h 2400
06h 4800 (28800 if ComShare installed)
07h 9600
08h 19200
---ComShare---
09h 38400
0Ah 57600
0Bh 115200
SeeAlso: #0219,#0226,#0228,#0265,#0272,AH=36h,#0283,#0523,#2570
--------S-1404-------------------------------
INT 14 - Tandy 2000 - SERIAL - FLUSH COMM BUFFER
AH = 04h
DL = port number
DH = protocol
bit 0: use XON/XOFF on received data
bit 1: use XON/XOFF when transmitting
Return: nothing
Desc: clears the serial interface buffer
Note: this interrupt is identical to INT 53 on the Tandy 2000
SeeAlso: AH=00h"Tandy 2000",INT 53"Tandy 2000"
--------S-1404-------------------------------
INT 14 - FOSSIL - INITIALIZE DRIVER
AH = 04h
DX = port number
optionally BX=4F50h
ES:CX -> byte to be set upon ^C
Return: AX = 1954h (if successful)
BL = maximum function number supported (excluding 7Eh and above)
BH = revision of FOSSIL specification supported
DTR is raised
Note: the word at offset 6 in the interrupt handler contains 1954h, and the
following byte contains the maximum function number supported; this
can serve as an installation check
SeeAlso: AH=05h"FOSSIL",AH=1Ch,INT 11/AH=BCh
Index: installation check;FOSSIL
--------S-1404-------------------------------
INT 14 - MultiDOS Plus IODRV - INITIALIZE PORT
AH = 04h
Return: port initialized; if Hayes-compatible modem, a connection has been
established
Note: the port number is stored at offset BEh in the Task Control Block
(see #0375 at INT 15/AH=13h"MultiDOS")
SeeAlso: AH=00h,AH=05h"MultiDOS",AH=20h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1404-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CHANGE BAUD RATE
AH = 04h
AL = initializing parameters (see #0229)
BX = baud rate
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=05h"Digiboard"
Bitfields for Digiboard initializing parameters:
Bit(s) Description (Table 0229)
7-5 unused
4-3 parity (00 none, 01 odd, 11 even)
2 stop bits (0 = one, 1 = two)
1-0 data bits (00 = five, 01 = six, 10 = seven, 11 = eight)
SeeAlso: #0226,#0227
--------S-1404-------------------------------
INT 14 - MBBIOS - INSTALLATION CHECK
AH = 04h
DX = port number
Return: AX = AA55h if installed on specified port
SeeAlso: AH=00h"MBBIOS",AH=09h"MBBIOS"
--------N-1404--DXFFFF-----------------------
INT 14 - Connection Manager - OPEN COMMUNICATION
AH = 04h
DX = FFFFh
ES:DI -> Connection Request protocol vector (see #0230)
Return: AH = return code
00h successful
AL = connection ID
BH = connection type
00h direct connection or no dialing
01h Connection Server dialed phone
01h no response from Connection Server
03h invalid request
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Desc: initiate a connection to the Connection Server listed in the current
Client parameter set
Notes: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
all subvectors of the Connection Request vector are optional; if
missing, default values are provided by the default connection
parameter set
SeeAlso: AH=00h/DX=FFFFh,AH=05h/DX=FFFFh,AH=06h/DX=FFFFh,AH=07h/DX=FFFFh
SeeAlso: AH=0Ah/DX=FFFFh,AH=0Ch/DX=FFFFh
Format of Connection Manager protocol command vector:
Offset Size Description (Table 0230)
00h WORD (big-endian) total length of command (including this word)
02h WORD (big-endian) command code
EF01h Connection Request
EF06h Modify Connection Parameters
04h N BYTEs list of subvectors (see #0232)
allowable subvector types are 01h-04h,17h,18h for command code
EF01h; 03h,04h for command code EF06h (see #0231)
(Table 0231)
Values for Connection Manager subvector type code:
01h Connection ID
02h Destination ID
03h Asynchronous line parameters
04h Data transfer parameters
09h Line speed
0Ah Serial coding
0Bh Packet size
0Ch Timers
0Dh Special characters
0Eh Target ID
0Fh Telephone number
10h ASCII destination ID
11h Parity
12h Bits per character
13h Number of stop bits
14h Packet timer
15h Intercharacter timer
17h Flags
18h Parameter ranges
19h Flow control
Format of Connection Manager subvector:
Offset Size Description (Table 0232)
00h BYTE length of subvector
01h BYTE type code (see #0231)
02h N-2 BYTEs data, which may include subvectors
SeeAlso: #0233,#0234,#0235,#0236,#0237,#0238,#0239,#0240,#0241,#0242,#0243
SeeAlso: #0244,#0245,#0247,#0248,#0249,#0250,#0251,#0252,#0230
Format of Connection ID subvector:
Offset Size Description (Table 0233)
00h BYTE 03h (length)
01h BYTE 01h (subvector "Connection ID")
02h BYTE connection ID
SeeAlso: #0232
Format of Destination ID subvector:
Offset Size Description (Table 0234)
00h BYTE length
01h BYTE 02h (subvector "Destination ID")
02h N BYTEs subvector(s) of type 0Eh, 0Fh, or 10h
SeeAlso: #0232
Format of Asynchronous line parameters subvector:
Offset Size Description (Table 0235)
00h BYTE length
01h BYTE 03h (subvector "Asynchronous line parameters")
02h N BYTEs subvector(s) of type 09h, 0Ah, or 19h
SeeAlso: #0232
Format of Data transfer parameters subvector:
Offset Size Description (Table 0236)
00h BYTE length
01h BYTE 04h (subvector "Data transfer parameters")
02h N BYTEs subvector(s) of type 0Bh, 0Ch, or 0Dh
SeeAlso: #0232
Format of Line speed subvector:
Offset Size Description (Table 0237)
00h BYTE 04h (length)
01h BYTE 09h (subvector "Line speed")
02h WORD bit map, highest set bit selects speed
bit 0: 2400
bits 1-7: 1800, 1200, 600, 300, 115200, 150, 110 bps
bits 8-15: 57600, 38400, 19200, 14400, 9600, 7200, 4800, 3600
SeeAlso: #0232
Format of Serial coding subvector:
Offset Size Description (Table 0238)
00h BYTE length
01h BYTE 0Ah (subvector "Serial coding")
02h N BYTEs subvector(s) of type 11h, 12h, or 13h
SeeAlso: #0232
Format of Packet size subvector:
Offset Size Description (Table 0239)
00h BYTE 04h (length)
01h BYTE 0Bh (subvector "Packet size")
02h WORD (big-endian) packet size, 1 to 1024
SeeAlso: #0232
Format of Timers subvector:
Offset Size Description (Table 0240)
00h BYTE length
01h BYTE 0Ch (subvector "Timers")
02h 8 BYTEs subvector of type 14h or 15h
SeeAlso: #0232
Format of Special characters subvector:
Offset Size Description (Table 0241)
00h BYTE length
01h BYTE 0Dh (subvector "Special characters")
02h N BYTEs list of ASCII characters to be used as EOM or EOB
SeeAlso: #0232
Format of Target ID:
Offset Size Description (Table 0242)
00h BYTE length
01h BYTE 0Eh (subvector "Target ID")
02h N BYTEs target ID, 1-16 bytes
SeeAlso: #0232
Format of Telephone number subvector:
Offset Size Description (Table 0243)
00h BYTE length
01h BYTE 0Fh (subvector "Telephone number")
02h N BYTEs telephone number
SeeAlso: #0232
Format of ASCII destination ID subvector:
Offset Size Description (Table 0244)
00h BYTE length
01h BYTE 10h (subvector "ASCII destination ID")
02h N BYTEs destination ID
SeeAlso: #0232
Format of Parity subvector:
Offset Size Description (Table 0245)
00h BYTE 03h (length)
01h BYTE 11h (subvector "Parity")
02h BYTE parity type (see #0246)
SeeAlso: #0232
Bitfields for Connection Manager parity type:
Bit(s) Description (Table 0246)
7 odd
6 even
5 mark
4 space
3 none
SeeAlso: #0245
Format of Bits per character subvector:
Offset Size Description (Table 0247)
00h BYTE 03h (length)
01h BYTE 12h (subvector "Bits per character")
02h BYTE bits per character
bit 7: seven
bit 6: eight
SeeAlso: #0232
Format of Number of stop bits subvector:
Offset Size Description (Table 0248)
00h BYTE 03h (length)
01h BYTE 13h (subvector "Number of stop bits")
02h BYTE stop bits
bit 7: one
bit 6: 1.5
bit 5: two
SeeAlso: #0232
Format of Packet timer and Intercharacter timer subvectors:
Offset Size Description (Table 0249)
00h BYTE 04h (length)
01h BYTE subvector type
14h Packet timer
15h Intercharacter timer
02h WORD (big-endian) unit of value representing 20ms
SeeAlso: #0232
Format of Flags subvector:
Offset Size Description (Table 0250)
00h BYTE 03h (length)
01h BYTE 17h (subvector "Flags")
02h BYTE flags
bit 7: queueing requested
SeeAlso: #0232
Format of Parameter ranges subvector:
Offset Size Description (Table 0251)
00h BYTE length
01h BYTE 18h (subvector "Parameter ranges")
02h N BYTEs subvector(s) of type 09h, 11h, 12h, or 13h
SeeAlso: #0232
Format of Flow control subvector:
Offset Size Description (Table 0252)
00h BYTE length (02h-04h)
01h BYTE 19h (subvector "Flow control")
02h BYTE XOFF character
03h BYTE XON character
Note: if length is 02h, flow control is disabled; if length is 03h, any
character will be accepted as XON after an XOFF
SeeAlso: #0232
--------S-140400-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - INSTALLATION CHECK
AX = 0400h
Return: AX = 0FF0h
SeeAlso: AX=0401h,AX=0408h
--------S-140401-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - INITIALIZE MODE
AX = 0401h
CX = mode
Return: nothing
SeeAlso: AX=0400h,AX=0402h
--------S-140402-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - EXTENDED INITIALIZE
AX = 0402h
CL = parameters
Return: nothing
SeeAlso: AX=0400h,AX=0401h
--------S-140403-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - SET TIMEOUT
AX = 0403h
CX = timeout
Return: nothing
SeeAlso: AX=0400h
--------S-140404-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - CLEAR THE RECEIVE BUFFER
AX = 0404h
Return: nothing
SeeAlso: AX=0400h,AX=0405h,AX=0406h
--------S-140405-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - GET RECEIVE BUFFER COUNT
AX = 0405h
Return: AX = number of characters in buffer
SeeAlso: AX=0400h,AX=0404h,AX=0407h
--------S-140406-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - CLEAR THE TRANSMIT BUFFER
AX = 0406h
Return: nothing
SeeAlso: AX=0400h,AX=0404h,AX=0407h
--------S-140407-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - GET TRANSMIT BUFFER COUNT
AX = 0407h
Return: AX = number of characters in the buffer
SeeAlso: AX=0400h,AX=0405h,AX=0406h
--------S-140408-----------------------------
INT 14 - Microsoft Systems Journal TSRCOMM INT14 - UNINSTALL
AX = 0408h
Return: nothing
SeeAlso: AX=0400h
--------S-1405-------------------------------
INT 14 - SERIAL - EXTENDED COMMUNICATION PORT CONTROL (CONVERTIBLE,PS)
AH = 05h
AL = function
00h read modem control register
Return: BL = modem control register (see #0253)
AH = status
01h write modem control register
BL = modem control register (see #0253)
Return: AX = status
DX = port number
Note: also supported by ArtiCom
SeeAlso: AH=00h,AH=1Fh,AX=8000h"ARTICOM",AH=FBh
Bitfields for modem control register:
Bit(s) Description (Table 0253)
0 data terminal ready
1 request to send
2 OUT1
3 OUT2
4 LOOP
5-7 reserved
--------S-1405-------------------------------
INT 14 - FOSSIL - DEINITIALIZE DRIVER
AH = 05h
DX = port number
Return: none
DTR is not affected
SeeAlso: AH=00h,AH=04h"FOSSIL",AH=1Dh,AH=8Dh
--------S-1405-------------------------------
INT 14 - MultiDOS Plus IODRV - READ CHARACTER FROM PORT
AH = 05h
AL = timeout in seconds (00h = never)
Return: AL = status
00h successful
AH = character read
01h read error
02h timed out
other modem status (CTS, DSR) changed
Note: the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=02h,AH=04h"MultiDOS",AH=06h"MultiDOS",AH=22h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"
--------S-1405-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CHANGE PROTOCOL
AH = 05h
AL = protocol (see #0254)
BH = new XOFF character (00h = current)
BL = new XON character (00h = current)
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=04h"Digiboard"
Bitfields for Digiboard protocol:
Bit(s) Description (Table 0254)
7-4 unused
3 RTS/CTS
2 DSR
1,0 XON/XOFF
--------S-1405-------------------------------
INT 14 - MBBIOS - DROP DTR AND RTS
AH = 05h
DX = port number
Return: none
SeeAlso: AH=00h"MBBIOS",AH=06h"MBBIOS",AH=06h"FOSSIL"
--------S-1405-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - CHANGE PORT PROTOCOL
AH = 05h
AL = new port protocol (see #0255)
BH = new XOFF character
BL = new XON character
DX = port number
Return: AH = FFh if invalid protocol
SeeAlso: AH=00h,AH=04h"SERIAL",AH=06h"PC-MOS"
Bitfields for PC-MOS/386 serial port protocol:
Bit(s) Description (Table 0255)
7 set to enable/disable CD monitoring, clear to set protocol
---bit 7 set---
4 CD monitoring enabled
5 automatic restart enabled
---bit 7 clear---
0 receive XON/XOFF
1 transmit XON/XOFF
2 DTR/DSR
3 RTS/CTS
--------N-1405--DXFFFF-----------------------
INT 14 - Connection Manager - CLOSE COMMUNICATION
AH = 05h
DX = FFFFh
AL = connection ID
Return: AH = return code
00h successful
01h no such connection
02h invalid connection ID
AL = correct connection ID
Desc: terminate existing connection to allow another one to be established
Note: if DX is 0-3 on entry, Connection Manager emulates the standard BIOS
function, but redirects the port over the network; if DX is any other
value, the call is chained
SeeAlso: AH=04h/DX=FFFFh,AH=0Dh/DX=FFFFh
--------S-1406-------------------------------
INT 14 - FOSSIL - RAISE/LOWER DTR
AH = 06h
DX = port
AL = DTR state to be set
00h = lower
01h = raise
Return: nothing
SeeAlso: AH=05h"MBBIOS",AH=1Ah
--------S-1406-------------------------------
INT 14 - MultiDOS Plus IODRV - WRITE CHARACTER TO PORT
AH = 06h
AL = character
Return: AL = status
00h successful
Notes: the port number is stored at offset BEh in the Task Control Block
if output queue is full, the calling task is blocked until the
character can be stored
SeeAlso: AH=01h,AH=04h"MultiDOS",AH=05h"MultiDOS",AH=21h"MultiDOS"
SeeAlso: INT 15/AH=13h"MultiDOS"
--------S-1406-------------------------------
INT 14 - MBBIOS - RAISE DTR AND RTS
AH = 06h
DX = port number
Return: none
SeeAlso: AH=05h"MBBIOS",AH=07h"MBBIOS"
--------S-1406-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DRIVER 'ID' FUNCTION
AH = 06h
DX = port number
Return: AH bit 7 set
AL = number of highest function supported by driver
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
SeeAlso: AH=18h"PC-MOS"
--------N-1406-------------------------------
INT 14 - TelAPI - WRITE BLOCK
AH = 06h
CX = number of characters to write
DX = port number
ES:DI -> buffer containing data
Return: AX = number of characters actually sent (negative on error)
CX = ???
SeeAlso: AH=07h"TelAPI",AH=E0h"TelAPI",AH=E3h"TelAPI"
--------N-1406--DXFFFF-----------------------
INT 14 - Connection Manager - SEND CHARACTER BLOCK
AH = 06h
DX = FFFFh
AL = connection ID
CX = number of characters to send
ES:DI -> buffer containing data to be sent
Return: AH = return code (see #0222)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=04h/DX=FFFFh,AH=07h/DX=FFFFh,AH=09h/DX=FFFFh
--------S-1407-------------------------------
INT 14 - FOSSIL - RETURN TIMER TICK PARAMETERS
AH = 07h
Return: AL = timer tick interrupt number
AH = ticks per second on interrupt number in AL
DX = approximate number of milliseconds per tick
SeeAlso: AH=16h
--------S-1407-------------------------------
INT 14 - MultiDOS Plus IODRV - GET PORT STATUS
AH = 07h
Return: CL = modem status (see #0224)
CH = character at head of input queue (if any)
DX = number of characters in input queue
Note: the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=03h,AH=05h"MultiDOS",AH=08h"MultiDOS",AH=09h"MultiDOS"
SeeAlso: AH=23h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1407-------------------------------
INT 14 - MBBIOS - SEND BREAK
AH = 07h
DX = port number
Return: none
SeeAlso: AH=06h"MBBIOS",AH=FAh"EBIOS"
--------S-1407-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - SEND RS-232 BREAK
AH = 07h
BX = duration of break in clock ticks
DX = port number
Return: nothing
--------N-1407-------------------------------
INT 14 - TelAPI - READ BLOCK
AH = 07h
CX = length of buffer in bytes
DX = port number
ES:DI -> buffer for data
Return: AX > 0000h number of characters actually read
AX = 0000h host has closed connection
AX < 0000h error code (see #0316)
CX = ???
Note: translates CRLF into local EOL if the connection is in ASCII mode,
negotiates various Telnet options, and immediately executes several
different Telnet action commands
SeeAlso: AH=06h"TelAPI",AH=E0h"TelAPI",AH=E2h"TelAPI"
--------N-1407--DXFFFF-----------------------
INT 14 - Connection Manager - RECEIVE CHARACTER BLOCK
AH = 07h
DX = FFFFh
AL = connection ID
BL = flag
00h wait for data
nonzero do not wait if no data avaiable
CX = size of receive buffer
ES:DI -> buffer for received characters
Return: AH = return code (00h-02h,04h,FFh) (see #0222)
BH = line status (see #0225)
CX = number of characters received
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=01h/DX=FFFFh,AH=04h/DX=FFFFh,AH=06h/DX=FFFFh
--------S-1408-------------------------------
INT 14 - FOSSIL - FLUSH OUTPUT BUFFER WAITING TILL ALL OUTPUT IS DONE
AH = 08h
DX = port number
Return: nothing
SeeAlso: AH=09h"FOSSIL"
--------S-1408-------------------------------
INT 14 - MultiDOS Plus 4.0 IODRV - GET AND RESET PORT LINE STATUS
AH = 08h
Return: AL = line status (see #0223)
AH destroyed
Notes: the port number is stored at offset BEh in the Task Control Block
on every line status change, the line status is ORed with the line
status accumulator; this function returns the accumulator and clears
it
SeeAlso: AH=03h,AH=04h"MultiDOS",AH=07h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1408-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - ALTERNATE STATUS CHECK
AH = 08h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = RS232 status bits (see #0223 at AH=03h)
ZF set if no characters queued
ZF clear if character available
AL = next character
SeeAlso: AH=03h,AH=08h"PC-MOS",AH=09h"Digiboard",AH=14h"Digiboard"
--------S-1408-------------------------------
INT 14 - MBBIOS - NON-DESTRUCTIVE READ
AH = 08h
DX = port number
Return: AL = character (if AH bit 0 set)
AH = status (see #0223)
SeeAlso: AH=0Bh"MBBIOS",AH=0Ch"FOSSIL"
--------S-1408-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - INPUT STATUS CHECK
AH = 08h
DX = port number
Return: CF set if carrier loss detected
ZF set if input buffer empty
ZF clear if characters available
AL = next character dequeued
--------N-1408--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN DEFAULT CONNECTION PARAMETERS
AH = 08h
DX = FFFFh
CX = size of buffer for parameters or 0000h to get length
ES:DI -> buffer for parameter vector (see #0230)
Return: AH = return code
00h successful
CX = number of bytes required (if CX=0000h on entry)
CX = number of bytes omitted for lack of space (if CX nonzero)
nonzero invalid request
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=00h/DX=FFFFh,AH=0Fh/DX=FFFFh
--------S-1409-------------------------------
INT 14 - FOSSIL - PURGE OUTPUT BUFFER THROWING AWAY ALL PENDING OUTPUT
AH = 09h
DX = port number
Return: nothing
SeeAlso: AH=08h"FOSSIL",AH=0Ah"FOSSIL",AH=88h
--------S-1409-------------------------------
INT 14 - MultiDOS Plus IODRV - RESET PORT STATUS
AH = 09h
Return: modem status byte cleared
Note: the port number is stored at offset BEh in the Task Control Block
SeeAlso: AH=04h"MultiDOS",AH=07h"MultiDOS",INT 15/AH=13h"MultiDOS"
--------S-1409-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR BUFFERS
AH = 09h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=08h"Digiboard",AH=0Ah"Digiboard",AH=10h"Digiboard"
--------S-1409-------------------------------
INT 14 - MBBIOS - GET/SET OPTIONS
AH = 09h
AL = option byte (see #0256)
DX = port number???
Return: AL = old option byte
SeeAlso: AH=00h"MBBIOS",AH=04h"MBBIOS",AH=10h"FOSSIL"
Bitfields for MBBIOS option byte:
Bit(s) Description (Table 0256)
0 transmit buffering enabled
2 hardware handshaking enabled
5 high-speed option enabled (see AH=00h"MBBIOS",#0221)
other reserved
--------S-1409-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - RESET I/O BUFFER POINTERS
AH = 09h
DX = port number
Return: nothing
SeeAlso: AH=13h"PC-MOS"
--------N-1409--DXFFFF-----------------------
INT 14 - Connection Manager - SEND BREAK
AH = 09h
DX = FFFFh
AL = connection ID
Return: AH = return code (00h-02h) (see #0222 at AH=00h/DX=FFFFh)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=02h/DX=FFFFh,AH=03h/DX=FFFFh
--------S-140A-------------------------------
INT 14 - FOSSIL - PURGE INPUT BUFFER THROWING AWAY ALL PENDING INPUT
AH = 0Ah
DX = port number
Return: nothing
SeeAlso: AH=09h"FOSSIL",AH=85h
--------S-140A-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - INPUT QUEUE CHECK
AH = 0Ah
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters available in buffer
Note: this function is also supported by the PC-MOS/386 v5.01 $serial.sys
SeeAlso: AH=09h"Digiboard",AH=0Dh"Digiboard"
--------S-140A-------------------------------
INT 14 - MBBIOS - WRITE BUFFER
AH = 0Ah
CX = count
ES:DI -> buffer (see #0257)
Return: AX = status (see #0223,#0224)
CX = unsent character count
DI updated
Note: the PACCOM version of MBBIOS does not use CX or ES:DI; instead, ES
contains the segment of a buffer containing the packet to be sent,
which by default will be freed once the packet has been sent. Use
AH=0Ch"MBBIOS" to allocate the buffer.
SeeAlso: AH=01h,AH=0Bh"MBBIOS",AH=0Ch"MBBIOS",AH=19h"FOSSIL"
Format of MBBIOS PACCOM buffer:
Offset Size Description (Table 0257)
00h 504 BYTEs data area
1F8h WORD length of data in data area
1FAh BYTE flags/status
bit 7: don't discard buffer after transmitting data
bit 6: buffer has been transmitted
1FBh BYTE reserved (0) for additional flags/status
1FCh WORD user data
1FEh WORD MBBIOS-internal pointer to next buffer
--------N-140A--DXFFFF-----------------------
INT 14 - Connection Manager - MODIFY ACTIVE CONNECTION PARAMETERS
AH = 0Ah
DX = FFFFh
ES:DI -> vector string containing new parameters (see #0230)
Return: AH = return code (00h-03h,06h) (see #0222)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Note: any subvectors valid for the Change Parameters command replace the
existing values in the current set
SeeAlso: AH=00h/DX=FFFFh,AH=0Fh/DX=FFFFh
--------S-140B-------------------------------
INT 14 - FOSSIL - TRANSMIT NO WAIT
AH = 0Bh
AL = character
DX = port number
Return: AX = result
0000h character not accepted
0001h character accepted
SeeAlso: AH=01h
--------S-140B-------------------------------
INT 14 - MBBIOS - READ BUFFER
AH = 0Bh
CX = size of buffer
ES:DI -> buffer
Return: AH = composite line status (see #0223) formed by ORing all statuses
on receive interrupts; bit 0 set if additional characters
available
AL = composite modem status (see #0224) formed by ORing all statuses
CX = number of characters actually read
DI updated
Note: the PACCOM version of MBBIOS does not use CX or ES:DI on call,
instead returning ES set to the segment of the buffer containing a
received packet, or 0000h if no packets available; the buffer may
be freed with AH=0Ch"MBBIOS"
SeeAlso: AH=02h,AH=08h"MBBIOS",AH=0Ah"MBBIOS",AH=0Ch"MBBIOS",AH=18h"FOSSIL"
--------N-140B--DXFFFF-----------------------
INT 14 - Connection Manager - PREPARE FOR INBOUND CONNECTION
AH = 0Bh
DX = FFFFh
AL = service name
00h use parameter file or default
01h use specified name
ES:DI -> 16-byte blank-padded name
BH = connection notification
00h program awaiting connection, don't notify user
01h notify user on connecting
BL = connection type
00h connection will use Connection Manager API
Return: AH = return code (00h-02h) (see #0222 at AH=00h/DX=FFFFh)
AL = connection ID if AH=00h
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=04h/DX=FFFFh,AH=0Ch/DX=FFFFh,AH=10h/DX=FFFFh
--------S-140C-------------------------------
INT 14 - FOSSIL - NON-DESTRUCTIVE READ AHEAD
AH = 0Ch
DX = port number
Return: AX = FFFFh character not available
AX = 00xxh character xx available
SeeAlso: AH=08h"MBBIOS",AH=20h"FOSSIL"
--------S-140C-------------------------------
INT 14 - MBBIOS PACCOM support - BUFFER MANAGEMENT
AH = 0Ch
ES = segment of buffer to free, or 0000h to allocate new buffer
Return: ES = segment of allocated buffer (if ES=0000h on entry)
Note: the PACCOM version of MBBIOS uses only ES as buffer address for
AH=0Ah and AH=0Bh
SeeAlso: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"
--------N-140C--DXFFFF-----------------------
INT 14 - Connection Manager - TEST FOR INBOUND CONNECTION REQUEST
AH = 0Ch
DX = FFFFh
AL = connection ID from AH=0Bh/DX=FFFFh
Return: AH = return code (00h-03h) (see also #0222 at AH=00h/DX=FFFFh)
03h not prepared for inbound connection
AL = connection ID (if AH=00h) or correct connection ID (if AH=02h)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=03h/DX=FFFFh,AH=04h/DX=FFFFh,AH=0Bh/DX=FFFFh
--------S-140D-------------------------------
INT 14 - FOSSIL - KEYBOARD READ WITHOUT WAIT
AH = 0Dh
Return: AX = result
FFFFh character not available
xxyyh standard IBM-style scan code
SeeAlso: AH=0Eh
--------S-140D-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - GET POINTER TO CH_KEY_RDY FLAG
AH = 0Dh
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: ES:BX -> CH_KEY_RDY flag (see #0258)
SeeAlso: AH=0Ah"Digiboard"
(Table 0258)
Values for Digiboard CH_KEY_RDY flag:
00h receive buffer empty
FFh characters available
--------S-140D-------------------------------
INT 14 - MBBIOS PACCOM support - SET TXD
AH = 0Dh
AL = new setting (FFh = 1.0)
Return: nothing
Desc: specify the time from RTS to start or packet
SeeAlso: AX=0D00h,AH=0Eh"MBBIOS",AH=0Fh"MBBIOS"
--------N-140D--DXFFFF-----------------------
INT 14 - Connection Manager - TERMINATE CONNECTION CLIENT ACTIVITY
AH = 0Dh
DX = FFFFh
Return: AH = return code
00h successful
nonzero operation not terminated
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Desc: end all Connection Client TSR activity to allow it to be removed from
memory
SeeAlso: AH=05h/DX=FFFFh,AH=6Fh/BX=FFFFh
--------S-140D00-----------------------------
INT 14 - MBBIOS - GET AVAILABLE BYTES
AX = 0D00h
Return: AX = bytes in transmit buffer
CX = bytes in receive buffer
SeeAlso: AH=0Ah"MBBIOS",AH=0Bh"MBBIOS"
--------S-140D01-----------------------------
INT 14 - MBBIOS - LOWER ALL MODEM CONTROL SIGNALS
AX = 0D01h
Return: nothing
Note: this function lowers DTR, RTS, etc.
SeeAlso: AX=0D02h
--------S-140D02-----------------------------
INT 14 - MBBIOS - RAISE ALL MODEM CONTROL SIGNALS
AX = 0D02h
Return: nothing
Note: this function raises DTR, RTS, etc.
SeeAlso: AX=0D01h
--------S-140D03-----------------------------
INT 14 - MBBIOS - SET HANDSHAKE BYTE
AX = 0D03h
CL = new handshake byte
Return: CL = previous handshake byte
Note: this function lowers DTR, RTS, etc.
--------S-140E-------------------------------
INT 14 - FOSSIL - KEYBOARD READ WITH WAIT
AH = 0Eh
Return: AX = xxyyh standard IBM-style scan code
SeeAlso: AH=0Dh"FOSSIL"
--------S-140E-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - WRITE STRING
AH = 0Eh
CX = number of characters to write
ES:BX -> string
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters actually written
ZF clear if successful
ZF set on error
SeeAlso: AH=0Fh"Digiboard"
--------S-140E-------------------------------
INT 14 - MBBIOS PACCOM support - SET PERSISTENCE
AH = 0Eh
AL = new setting (FFh = 1.0)
Return: nothing
Desc: specify the time from end of DCD to RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"
--------N-140E--DXFFFF-----------------------
INT 14 - Connection Manager - SET HARDWARE FLOW STATE
AH = 0Eh
DX = FFFFh
AL = connection ID from AH=04h/DX=FFFFh
BL = RTS state (00h off, 01h on)
Return: AH = return code (00h-03h) (see also #0222 at AH=00h/DX=FFFFh)
03h invalid request (BL not 00h or 01h)
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=03h/DX=FFFFh,AH=0Ah/DX=FFFFh
--------S-140F-------------------------------
INT 14 - FOSSIL - ENABLE/DISABLE FLOW CONTROL
AH = 0Fh
AL = bit mask describing requested flow control (see #0259)
DX = port number
Return: nothing
SeeAlso: AH=09h"MBBIOS",AH=10h"FOSSIL"
Bitfields for FOSSIL requested flow control:
Bit(s) Description (Table 0259)
0 XON/XOFF on transmit (watch for XOFF while sending)
1 CTS/RTS (CTS on transmit/RTS on receive)
2 reserved
3 XON/XOFF on receive (send XOFF when buffer near full)
4-7 all 1
--------S-140F-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - READ STRING
AH = 0Fh
CX = number of characters to read
ES:BX -> buffer
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of characters read
ZF clear if successful
ZF set on error (line status or wrong number of characters)
SeeAlso: AH=0Eh"Digiboard"
--------S-140F-------------------------------
INT 14 - MBBIOS PACCOM support - SET SLOT TIME
AH = 0Fh
AL = new setting in clock ticks
Return: nothing
Desc: specify the time from end of DCD to RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Eh"MBBIOS",AH=10h"MBBIOS"
--------N-140F--DXFFFF-----------------------
INT 14 - Connection Manager - RETURN ACTIVE CONNECTION PARAMETERS
AH = 0Fh
DX = FFFFh
AL = connection ID
CX = size of buffer or 0000h to get length of returned vector
ES:DI -> buffer for connection parameter vector (see #0230)
Return: AH = return code (00h-02h,06h) (see #0222 at AH=00h/DX=FFFFh)
CX = number of bytes which could not be returned because the given
buffer was too small
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
SeeAlso: AH=08h/DX=FFFFh,AH=0Ah/DX=FFFFh
--------S-1410-------------------------------
INT 14 - FOSSIL - EXTENDED ^C/^K CHECKING AND TRANSMIT ON/OFF
AH = 10h
AL = bit mask
bit 0: enable/disable ^C/^K checking
bit 1: enable/disable the transmitter
DX = port number
Return: nothing
SeeAlso: AH=0Fh"FOSSIL"
--------S-1410-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR RECEIVE BUFFER
AH = 10h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=09h"Digiboard",AH=11h"Digiboard"
--------S-1410-------------------------------
INT 14 - MBBIOS PACCOM support - SET CRC WAIT
AH = 10h
AL = new setting in clock ticks (should be at least 5 character times)
Return: nothing
Desc: specify the time from start of last character to dropping RTS
SeeAlso: AH=0Dh"MBBIOS",AH=0Fh"MBBIOS"
--------N-1410--DXFFFF-----------------------
INT 14 - Connection Manager - QUERY SERVICE NAMES
AH = 10h
DX = FFFFh
CL = subfunction
00h search first
01h search next
ES:DI -> pattern buffer (see #0260)
Return: AH = return code (00h,01h,03h,06h) (see also #0222 at AH=00h/DX=FFFFh)
01h no (more) matching names
03h invalid request
ES:DI buffer filled with reply buffer (see #0260) containing matched
name if AH=00h
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
Desc: obtain the names of groups and lines available for connection requests,
and the names of active Connection Servers
SeeAlso: AH=04h/DX=FFFFh,AH=0Bh/DX=FFFFh
Format of Connection Manager pattern/reply buffer:
Offset Size Description (Table 0260)
00h WORD length of pattern (30h or 32h)
02h 16 BYTEs server pattern or name
12h 16 BYTEs group pattern or name
22h 16 BYTEs line pattern or name
23h BYTE (optional) ???
24h BYTE (optional, returned) current line status
00h available
01h out of service
02h currently allocated to a connection
Note: pattern may include '?' wildcard to match any character
--------S-1411-------------------------------
INT 14 - FOSSIL - SET CURRENT CURSOR LOCATION
AH = 11h
DH = row
DL = column
Return: nothing
Note: this is the same as INT 10/AH=02h
SeeAlso: AH=12h"FOSSIL"
--------S-1411-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CLEAR TRANSMIT BUFFER
AH = 11h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh error
SeeAlso: AH=09h"Digiboard",AH=10h"Digiboard"
--------S-1411-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DISABLE PORT
AH = 11h
DX = port number
Return: AL = status
00h successful
01h IRQ for port is shared
02h IRQ was reserved
SeeAlso: AH=04h"SERIAL",AH=05h"SERIAL",AH=12h"PC-MOS"
--------S-1412-------------------------------
INT 14 - FOSSIL - READ CURRENT CURSOR LOCATION
AH = 12h
Return: DH = row
DL = column
Note: this is the same as INT 10/AH=03h
SeeAlso: AH=11h"FOSSIL"
--------S-1412-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - GET TRANSMIT BUFFER FREE SPACE
AH = 12h
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AX = number of bytes free
SeeAlso: AH=0Ah"Digiboard",AH=14h"Digiboard"
--------S-1412-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - GET CURRENT PORT PARAMETERS
AH = 12h
DX = port number
Return: AH = status
FFh port number invalid
AL = line parameters (see #0223)
AH = flow control configuration (see #0255 at AH=05h"PC-MOS")
CX:BX = bps rate
DL = XOFF character or 00h for none
DH = XON character or 00h for none
--------S-1413-------------------------------
INT 14 - FOSSIL - SINGLE CHARACTER ANSI WRITE TO SCREEN
AH = 13h
AL = character
Return: nothing
Note: should not be called if it is unsafe to call DOS
SeeAlso: AH=15h
--------S-1413-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - REGISTER A PORT WITH A TERMINAL
AH = 13h
DX = port number
Return: AH = status
FFh port number invalid
else
ES:BX -> BYTE flag (00h buffer empty, FFh buffer contains data)
SeeAlso: AH=17h"PC-MOS"
--------S-1414-------------------------------
INT 14 - FOSSIL - ENABLE OR DISABLE WATCHDOG PROCESSING
AH = 14h
AL = 01h enable watchdog
00h disable watchdog
DX = port number
Return: nothing
SeeAlso: INT 21/AH=2Bh/CX=6269h"WDTSR"
--------S-1414-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - OUTPUT STRING
AH = 14h
CX = number of characters in string
DX = port number
ES:BX -> string to be sent
SI = timeout in timer ticks or 0000h for default
Return: AX = number of bytes actually sent
ZF clear if successful
ZF set on timeout
SeeAlso: AH=01h,AH=15h"PC-MOS"
--------S-1414-------------------------------
INT 14 - Digiboard - GET NUMBER OF BOARDS INSTALLED
AH = 14h
Return: AX = number of boards installed
SeeAlso: AH=08h"Digiboard",AH=15h"Digiboard"
--------S-1415-------------------------------
INT 14 - FOSSIL - WRITE CHARACTER TO SCREEN USING BIOS SUPPORT ROUTINES
AH = 15h
AL = character
Return: nothing
SeeAlso: AH=13h"FOSSIL"
--------S-1415-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - INPUT STRING
AH = 15h
CX = size of buffer
DX = port number
ES:BX -> buffer for received characters
SI = timeout in clock ticks or 0000h for default
Return: AX = number of characters actually read
ZF set on timeout (no data available)
SeeAlso: AH=02h,AH=14h"PC-MOS",AH=16h"PC-MOS"
--------S-1415-------------------------------
INT 14 - Digiboard - ENABLE/DISABLE MEMORY
AH = 15h
AL = new state (00h disabled, 01h enabled)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=14h"Digiboard",AH=16h"Digiboard"
--------S-1416-------------------------------
INT 14 - FOSSIL - INSERT/DELETE FUNCTION FROM TIMER TICK CHAIN
AH = 16h
AL = function
00h = delete
01h = add
ES:DX -> routine to call
Return: AX = status
0000h successful
0001h unsuccessful
SeeAlso: AH=07h"FOSSIL"
--------S-1416-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - LINK TO ANOTHER SERIAL DRIVER
AH = 16h
ES:BX -> calling driver's INT 14 entry point
Return: nothing
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
--------S-1416-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - CCB COMMAND
AH = 16h
AL = CCB command number (see #0261) (see also following entries)
BL = byte 2
BH = byte 3
CL = byte 1 (for all channel functions except 4Eh and 4Fh)
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AX=1646h,AH=18h"Digiboard"
(Table 0261)
Values for Digiboard CCB command number:
40h Set Receive Mid Water Mark
41h Set Receive High Water Mark
42h Flush Receive Buffer
43h Flush Transmit Buffer
44h Transmit Pause
45h Transmit Resume
46h Set Interrupt to Host Mask
47h Set Baud, Data, Stop and Parity
48h Send Break
49h Set Modem Lines
4Ah Set Break Count
4Bh Set Handshake
4Ch Set Xon/Xoff Characters
4Dh Set Transmit Mid Water Mark
4Eh IRQ Polling Timer to Host
4Fh Buffer Set All
50h Port On
51h Port Off
52h Receive Pause
53h Special Character Interrupt
54h RS-422 Enable
--------S-141646-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET INTERRUPT TO HOST MASK
AX = 1646h
BL = bits to set
BH = bits to clear
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1647h
--------S-141647-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET BAUD/DATABITS/STOPBITS/PARITY
AX = 1647h
BL = baud
BH = datatype
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1646h,AX=1649h
--------S-141649-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET MODEM LINES
AX = 1649h
BL = bits to set
BH = bits to clear
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1647h
--------S-14164A-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET BREAK COUNT
AX = 164Ah
BL = break count
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1649h,AX=164Bh
--------S-14164B-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET HANDSHAKE
AX = 164Bh
BL = bits to set
BH = bits to clear
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1649h,AX=164Ch
--------S-14164C-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET XON/XOFF CHARACTERS
AX = 164Ch
BL = XON character
BH = XOFF character
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Bh,AX=164Dh
--------S-14164D-----------------------------
INT 14 - Digiboard - CCB COMMAND - SET TRANSMIT MID-WATER MARK
AX = 164Dh
BX = new mid-water mark
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Ch,AX=164Eh,AX=164Fh
--------S-14164E-----------------------------
INT 14 - Digiboard - CCB COMMAND - IRQ POLLING TIMER TO HOST
AX = 164Eh
BL = ticks
BH = ???
CL = mode
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Dh
--------S-14164F-----------------------------
INT 14 - Digiboard - CCB COMMAND - BUFFER SET ALL
AX = 164Fh
BL = size
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=164Dh
--------S-141653-----------------------------
INT 14 - Digiboard - CCB COMMAND - SPECIAL CHARACTER INTERRUPT
AX = 1653h
BL = enable/disable
BH = special character
CL = byte 1
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h error
FFh error
SeeAlso: AH=16h"Digiboard",AX=1646h
--------S-1417-------------------------------
INT 14 - FOSSIL - REBOOT SYSTEM
AH = 17h
AL = method
00h = cold boot
01h = warm boot
SeeAlso: INT 16/AX=E0FFh,INT 19,INT 60/DI=0606h
--------S-1417-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - WRITE MODEM CONTROL REGISTER
AH = 17h
AL = new value for UART's modem control register
DX = port number
Return: nothing
--------S-1418-------------------------------
INT 14 - FOSSIL - READ BLOCK
AH = 18h
CX = maximum number of characters to transfer
DX = port number
ES:DI -> user buffer
Return: AX = number of characters transferred
SeeAlso: AH=19h"FOSSIL",AH=83h"COURIERS",AX=FF02h,INT 6B/AX=0100h
--------S-1418-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - SEND BIOS COMMAND
AH = 18h
ES:BX -> 16-byte command string
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
80h timeout
AL = mailbox status
00h no errors
8Xh BIOS error
ES:BX buffer filled in with mailbox string
ZF clear if no errors
ZF set if either status byte contains an error code
SeeAlso: AH=16h"Digiboard"
--------S-1418-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - GET DRIVER DESCRIPTION
AH = 18h
DX = port number
Return: DS:BX -> 40-byte buffer containing a string identifying the serial
driver
SeeAlso: AH=06h"PC-MOS"
--------S-1419-------------------------------
INT 14 - FOSSIL - WRITE BLOCK
AH = 19h
CX = maximum number of characters to transfer
DX = port number
ES:DI -> user buffer
Return: AX = number of characters transferred
SeeAlso: AH=18h"FOSSIL",AH=86h,INT 6B/AX=0000h
--------S-1419-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X* - SPECIAL CHARACTER INTERRUPT
AH = 19h
BL = flag
00h disable special character interrupt
FFh enable interrupt
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
00h successful
FFh failed
SeeAlso: AH=1Ah"Digiboard"
--------S-1419-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - SELECTIVE BUFFER FLUSH
AH = 19h
AL = what to flush
bit 0: input buffer
bit 1: output buffer
DX = port number
Return: nothing
SeeAlso: AH=09h"PC-MOS"
--------S-141A-------------------------------
INT 14 - FOSSIL - BREAK BEGIN OR END
AH = 1Ah
AL = 00h stop sending 'break'
01h start sending 'break'
DX = port number
Return: nothing
SeeAlso: AH=06h"FOSSIL",AH=8Ah,AH=FAh
--------S-141A-------------------------------
INT 14 - Digiboard DigiCHANNEL PC/X - SPECIAL CHARACTER FLAG/COUNTER
AH = 1Ah
BX = subfunction
00h return pointer to special character flag byte
01h return pointer to special character counter word
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: ES:BX -> special character flag or counter
Notes: flag is FFh if one or more special characters are in the receive
buffer; it is 00h and the counter is invalid if no special characters
are in the receive buffer
counter (if valid) contains the number of characters in the receive
buffer up to and including the last-received special character
--------S-141B-------------------------------
INT 14 - FOSSIL - RETURN INFORMATION ABOUT THE DRIVER
AH = 1Bh
DX = port number
CX = size of user buffer
ES:DI -> user buffer for driver info (see #0262)
Return: AX = number of characters transferred
CX = 3058h ("0X") (X00 FOSSIL only)
DX = 2030h (" 0") (X00 FOSSIL only)
Format of FOSSIL driver info:
Offset Size Description (Table 0262)
00h WORD size of structure in bytes
02h BYTE FOSSIL spec driver conforms to
03h BYTE revision level of this specific driver
04h DWORD pointer to ASCIZ identification string
08h WORD size of the input buffer
0Ah WORD number of bytes left in buffer
0Ch WORD size of the output buffer
0Eh WORD number of bytes left in buffer
10h BYTE width of screen
11h BYTE length of screen
12h BYTE actual baud rate, computer to modem
--------S-141C-------------------------------
INT 14 - X00 FOSSIL - ACTIVATE PORT
AH = 1Ch
DX = port number
Return: AX = 1954h if successful
BL = maximum function number supported (not including 7Eh and above)
BH = revision of FOSSIL specification supported
Note: this is a duplicate of AH=04h, so that AH=04h may be made compatible
with the PS/2 BIOS in a future release
SeeAlso: AH=04h"FOSSIL",AH=1Dh
--------S-141D-------------------------------
INT 14 - X00 FOSSIL - DEACTIVATE PORT
AH = 1Dh
DX = port number
Return: none
Notes: this is a duplicate of AH=05h, so that AH=05h may be made compatible
with the PS/2 BIOS in a future release
ignored if the port was never activated with AH=04h or AH=1Ch
SeeAlso: AH=05h"FOSSIL",AH=1Ch
--------S-141E-------------------------------
INT 14 - X00 FOSSIL - EXTENDED LINE CONTROL INITIALIZATION
AH = 1Eh
AL = break status
00h if break
01h if no break
BH = parity (see #0263)
BL = number of stop bits
00h one stop bit
01h two stop bits (1.5 if 5 bit word length)
CH = word length (see #0264)
CL = bps rate (see #0265)
DX = port number
Return: AX = port status code (see #0223,#0224)
Notes: this function is intended to exactly emulate the PS/2 BIOS AH=04h call
if the port was locked at X00 load time, the appropriate parameters are
ignored
SeeAlso: AH=00h,AH=04h"SERIAL"
(Table 0263)
Values for X00 FOSSIL parity:
00h no parity
01h odd parity
02h even parity
03h stick parity odd
04h stick parity even
SeeAlso: #0226,#0264,#0265
(Table 0264)
Values for X00 FOSSIL word length:
00h 5 bits
01h 6 bits
02h 7 bits
03h 8 bits
SeeAlso: #0227,#0263,#0265
(Table 0265)
Values for X00 FOSSIL bps rate:
00h 110
01h 150
02h 300
03h 600
04h 1200
05h 2400
06h 4800
07h 9600
08h 19200
SeeAlso: #0228,#0263,#0264
--------S-141E------------------------------------
INT 14 - HUNTER 16 - READ COMMS PARAMETERS
AH = 1Eh
CX = channel number (00h COM1, 01h COM2, ...)
DS:BX -> buffer for communications parameters (see #0266)
Return: DS:BX buffer filled
Note: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=20h"HUNTER"
Format of HUNTER 16 communications parameters:
Offset Size Description (Table 0266)
00h BYTE communications type (00h IBM, nonzero Husky)
01h BYTE port number (00h COM1, 01h COM2)
02h BYTE baud rate (00h 110 bps, 01h 150, 02h 300, 03h 600, 04h 1200,
05h 2400, 06h 4800, 07h 9600, 08h 19200, 09h 38400)
03h BYTE data bits (01h seven, 02h eight)
04h BYTE parity (00h none, 01h odd, 02h even)
05h BYTE stop bits (00h one, 01h two)
06h BYTE handshake (see #0267)
07h BYTE handshake protocol (00h none, 01h Xon/Xoff, 02h HWK3780)
08h BYTE Nulls after CR (0-20)
09h BYTE LF (00h off, 01h on)
0Ah BYTE Serig. 0..7Fh: Ignore this character
80h: Serig off
0Bh BYTE echo (00h off, 01h on)
0Ch BYTE transmit timeout in seconds (1-60) or 00h to disable
0Dh BYTE receive timeout in seconds (1-60) or 00h to disable
0Eh 5 BYTEs reserved
Bitfields for HUNTER 16 handshake:
Bit(s) Description (Table 0267)
0-1 0: RTS off, 1: RTS hold, 2: RTS true
2 DTR enabled
4 CTS enabled
5 DSR enabled
6 DCD enabled
--------S-141F-------------------------------
INT 14 - X00 FOSSIL - EXTENDED SERIAL PORT STATUS/CONTROL
AH = 1Fh
DX = port number
AL = direction
00h read modem control register
Return: BL = modem control register (see #0268)
AH = status
01h write modem control register
BL = modem control register (see #0268)
Return: AX = status
Notes: this function is intended to exactly emulate the PS/2 BIOS AH=05h call
X00 forces BL bit 3 set (interrupts cannot be disabled)
SeeAlso: AH=00h,AH=05h"SERIAL"
Bitfields for X00 FOSSIL modem control register:
Bit(s) Description (Table 0268)
0 data terminal ready
1 request to send
2 OUT1
3 OUT2 (interrupts) enabled
4 LOOP
5-7 reserved
--------S-1420-------------------------------
INT 14 - X00 FOSSIL - DESTRUCTIVE READ WITH NO WAIT
AH = 20h
DX = port number
Return: AH = 00h if character was available
AL = next character (removed from receive buffer)
AX = FFFFh if no character available
SeeAlso: AH=0Ch,AH=21h"X00"
--------S-1420-------------------------------
INT 14 - Alloy MW386 - ATTACH LOGICAL COMMUNICATIONS PORT TO PHYSICAL PORT
AH = 20h
AL = logical port (01h COM1, 02h COM2)
DX = physical port number
Return: AX = status
0000h successful
FFFFh failed
SeeAlso: AH=21h"Alloy",AH=22h"Alloy",AH=23h"Alloy",INT 17/AH=8Bh"Alloy"
--------S-1420-------------------------------
INT 14 - MultiDOS Plus - INITIALIZE PORT
AH = 20h
AL = port parameters (see #0219 at AH=00h"SERIAL")
DX = port number (0-3)
Return: AH = status
00h successful
41h no such port
64h monitor mode already active
SeeAlso: AH=00h"SERIAL",AH=04h"MultiDOS",AH=21h"MultiDOS",AH=23h"MultiDOS"
--------S-1420-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - CHECK OUTPUT QUEUE
AH = 20h
DX = port number
Return: AX = number of bytes in output buffer
SeeAlso: AH=0Ah"Digiboard"
--------S-1420------------------------------------
INT 14 - HUNTER 16 - SELECT COMMS PARAMETERS
AH = 20h
CX = channel number (00h COM1, 01h COM2, ...)
DS:BX -> buffer with communications parameter (see #0266)
Return: AX = status
0000h successful
0001h invalid parameter
SeeAlso: AH=1Eh"HUNTER",AH=21h"HUNTER"
--------S-1421-------------------------------
INT 14 - X00 FOSSIL - STUFF RECEIVE BUFFER
AH = 21h
AL = character
DX = port number
Return: nothing
Notes: the given character is inserted at the end of the receive buffer as if
it had just arrived from the serial port; all normal receive
processing (XON/XOFF, ^C/^K) is performed on the character
fully re-entrant
SeeAlso: AH=20h"X00"
--------S-1421-------------------------------
INT 14 - Alloy MW386 v1.x only - RELEASE PHYSICAL COMMUNICATIONS PORT
AH = 21h
DX = physical port number
Return: AX = status
0000h successful
FFFFh failed
SeeAlso: AH=20h"Alloy",AH=22h"Alloy"
--------S-1421-------------------------------
INT 14 - MultiDOS Plus - TRANSMIT CHARACTER
AH = 21h
AL = character to send
DX = port number
Return: AH = status (see #0269)
Note: monitor mode must have been turned on with AH=24h before calling
SeeAlso: AH=20h"MultiDOS",AH=22h"MultiDOS",AH=24h"MultiDOS"
(Table 0269)
Values for MultiDOS Plus status:
00h successful
39h no DSR or CTS
3Ch no DSR
3Bh no CTS
41h no such port
42h monitor mode not active
97h timed out
--------S-1421-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - OUTPUT CHARACTER, WITH TIMEOUT
AH = 21h
AL = char to send
DX = port number
SI = timeout in timer ticks (0000h = default)
Return: after character is sent or timeout expires
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
SeeAlso: AH=01h,AH=0Eh"Digiboard",AH=22h"PC-MOS"
--------S-1421------------------------------------
INT 14 - HUNTER 16 - EXTENDED CONTROL
AH = 21h
AL = command
01h force transmission of buffer
02h clear transmit buffer
03h clear receive buffer
DX = port (00h COM1, 01h COM2)
Return: AH = extended status
Desc: executes the command on the selected port
SeeAlso: AH=1Eh"HUNTER",AH=20h"HUNTER",AH=22h"HUNTER",AH=24h"HUNTER"
--------S-1422-------------------------------
INT 14 - Alloy MW386 v2+ - RELEASE LOGICAL COMMUNICATIONS PORT
AH = 22h
AL = logical port (01h COM1, 02h COM2)
Return: AX = status (0000h successful)
SeeAlso: AH=20h"Alloy",AH=21h"Alloy"
--------S-1422-------------------------------
INT 14 - MultiDOS Plus - RECEIVE CHARACTER
AH = 22h
DX = port number
Return: AH = status (see also AH=21h"MultiDOS")
00h successful
AL = character
3Dh framing and parity error
3Eh overrun error
3Fh framing error
40h parity error
96h ring buffer overflow
Note: if no character is available, this function waits until a character
arrives or an implementation-dependent timeout elapses
SeeAlso: AH=20h"MultiDOS",AH=21h"MultiDOS",AH=27h
--------S-1422-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - RECEIVE CHARACTER, WITH TIMEOUT
AH = 22h
DX = port number
SI = timeout in timer ticks (0000h = default)
Return: AH = port status (see also #0223 at AH=03h)
bit 7 = 1 indicates time-out
AL = character received
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
SeeAlso: AH=02h,AH=0Fh"Digiboard",AH=21h"PC-MOS"
--------S-1422------------------------------------
INT 14 - HUNTER 16 - EXTENDED STATUS
AH = 22h
DX = port (00h COM1, 01h COM2)
Return: AH = extended status
BX = number of characters in input buffer
CX = number of characters in output buffer
Desc: returns the most recent Extended Status code for the port
SeeAlso: AH=21h"HUNTER"
--------S-1423-------------------------------
INT 14 - Alloy MW386 v2+ - GET PORT NUMBER FROM LOGICAL PORT ID
AH = 23h
AL = logical port (01h COM1, 02h COM2)
DH = user ID
DL = process ID (DH,DL both FFh for current task)
Return: AL = MW386 port mode (see #0270)
CX = MW386 port number
DH = owner's user ID
DL = owner's task ID
SeeAlso: AH=20h"Alloy",INT 17/AH=8Bh"Alloy"
Bitfields for MW386 port mode:
Bit(s) Description (Table 0270)
0 port is shared (spooler only)
1 port is spooled instead of direct (spooler only)
2 port is assigned as logical COM device, not in spooler
3 port is free
--------S-1423-------------------------------
INT 14 - MultiDOS Plus - GET PORT STATUS
AH = 23h
DX = port number
Return: AH = line status (see #0223 at AH=03h)
AL = modem status (see #0224 at AH=03h)
SeeAlso: AH=03h,AH=07h"MultiDOS",AH=20h"MultiDOS"
--------S-1423-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - DECLARE PORT OWNERSHIP
AH = 23h
DX = port number
BX = TCB segment/selector address of owner task
Return: nothing
SeeAlso: AH=0Dh"Digiboard",AH=21h"PC-MOS",AH=22h"PC-MOS"
--------S-1423------------------------------------
INT 14 - HUNTER 16 - CONTROL HANDSHAKE LINES
AH = 23h
BH = handshake line to set (00h RTS, 01h DTR)
BL = new level (00h low, 01h high)
Return: nothing
Desc: sets the handshake lines of COM1 to the desired level
SeeAlso: AH=21h"HUNTER",AH=24h"HUNTER"
--------S-1424-------------------------------
INT 14 - Alloy MW386 v2+ - CHANGE PHYSICAL PORT PARAMETERS
AH = 24h
CX = physical I/O port number
DS:DX -> configuration table (see #0271)
Return: AH = 00h
Note: invalid port numbers are merely ignored
SeeAlso: INT 17/AH=96h
Format of Alloy MW386 configuration table:
Offset Size Description (Table 0271)
00h BYTE baud rate (see #0272)
01h BYTE data bits (00h=5, 01h=6, 02h=7, 03h=8)
02h BYTE parity (00h none, 01h odd, 02h even)
03h BYTE stop bits (00h=1, 01h=2)
04h BYTE receive flow control
00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC, 04h RTS/CTS
05h BYTE transmit flow control (as for receive)
(Table 0272)
Values for Alloy MW386 baud rate:
00h 38400
01h 19200
02h 9600
03h 7200
04h 4800
05h 3600
06h 2400
07h 2000
08h 1200
09h 600
0Ah 300
0Bh 150
0Ch 134.5
SeeAlso: #0228
--------S-1424-------------------------------
INT 14 - MultiDOS Plus - SET MONITOR MODE
AH = 24h
AL = port status storage
00h single status for entire receive buffer
01h separate status kept for each byte in receive buffer
DX = port number
Return: AH = status
00h successful
3Ah invalid status storage specified
41h no such port
64h monitor mode already active
Note: in monitor mode, MultiDOS redirects all BIOS video output to a serial
port
SeeAlso: AH=20h"MultiDOS",AH=25h
--------S-1424-------------------------------
INT 14 - PC-MOS/386 v5.01 $serial.sys v5.04 - ???
AH = 24h
Return: ???
Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible
operating system by The Software Link, Inc.
--------S-1424------------------------------------
INT 14 - HUNTER 16 - CONTROL CTS HANDSHAKING
AH = 24h
AL = new CTS handshake state for COM1 (00h disabled, 01h enabled)
Return: nothing
SeeAlso: AH=23h"HUNTER",AH=25h"HUNTER",AH=26h"HUNTER"
--------S-1425-------------------------------
INT 14 - MultiDOS Plus - CLEAR BUFFERS
AH = 25h
AL = function
00h only clear buffers
01h clear buffers and deactivate
DX = port number
Return: AH = status
00h successful
3Ah invalid function
41h no such port
42h monitor mode not active
SeeAlso: AH=20h"MultiDOS",AH=24h"MultiDOS"
--------S-1425------------------------------------
INT 14 - HUNTER 16 - CONTROL RS232 DRIVERS
AH = 25h
AL = new state of RS232 drivers (00h off, 01h on)
Return: nothing
Note: this function can be used to save power by turning off the RS232
drivers. It can also be used to turn on the RS232 drivers before
connecting to a remote system to avoid "garbage" while the drivers
turn on.
SeeAlso: AH=23h"HUNTER",AH=24h"HUNTER",AH=26h"HUNTER"
--------S-1426------------------------------------
INT 14 - HUNTER 16 - CONTROL RI POWER UP
AH = 26h
AL = 00h enable RI power up
else disable RI power up
Return: nothing
Desc: control whether the Ring Indicator handshake can power up the Hunter
--------S-1427-------------------------------
INT 14 - MultiDOS Plus - GET BUFFER CHARACTER COUNT
AH = 27h
DX = port number
Return: AH = status
00h successful
41h no such port
42h monitor mode not active
AL = number of characters in receive buffer
--------S-1427------------------------------------
INT 14 - HUNTER 16 - GET INSTALLED PROTOCOLS COUNT
AH = 27h
AL = number of extended protocols installed (since last call)
Return: AL = total number installed, including new ones
Desc: Returns the number of extended communication protocols installed
SeeAlso: AH=25h"HUNTER",AH=28h"HUNTER"
--------S-1428------------------------------------
INT 14 - HUNTER 16 - GET PROTOCOL NAME
AH = 28h
AL = protocol handle
DS:BX -> 8 character buffer for protocol name
Return: AH = status
00h successful
DS:BX buffer filled with the protocol name
FFh failed
SeeAlso: AH=27h"HUNTER",AH=29h"HUNTER"
--------S-1429------------------------------------
INT 14 - HUNTER 16 - GET PROTOCOL HANDLE
AH = 29h
DS:BX -> buffer containing the protocol name
Return: AH = status
00h successful
AL = handle
FFh failed
SeeAlso: AH=28h"HUNTER",AH=2Ah"HUNTER"
--------S-142A------------------------------------
INT 14 - HUNTER 16 - EXTENDED PROTOCOL MENU
AH = 2Ah
AL = protocol handle
Return: AH = status
00h successful
FFh failed
AL = menu handle
SeeAlso: AH=29h"HUNTER",AH=2Bh"HUNTER"
--------S-142B------------------------------------
INT 14 - HUNTER 16 - GET EXTENDED PROTOCOL PARAMETERS
AH = 2Bh
AL = protocol handle
DS:BX -> buffer for extended protocol parameters
Return: AH = status
00h successful
DS:BX buffer filled with extended parameters
FFh failed
SeeAlso: AH=2Ah"HUNTER"
--------S-142C00----------------------------------
INT 14 - HUNTER 16 - GET DTR
AX = 2C00h
Return: AH = 00h
BL = current state
00h normal DTR operation
else DTR is forced high
Desc: Indicates whether the DTR signal on COM1 is forced high
Note: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AH=2Ch"SET DTR"
--------S-142C------------------------------------
INT 14 - HUNTER 16 - SET DTR
AH = 2Ch
AL nonzero
BL = new state
00h normal operation
else force DTR high
Return: AH = 00h
Desc: determine whether the DTR signal on COM1 should be forced high
SeeAlso: AX=2C00h
--------N-1436-------------------------------
INT 14 - ComShare - INSTALLATION CHECK
AH = 36h
Return: AX = 4353h ('CS') if installed
BX = bitmap of installed ports (bit 0: COM1 is gateway, etc.)
CX reserved for future use
WORD DX:[0100h] = ComShare version number
Program: The ComShare System is a modem-sharing program for NetBIOS and
NetWare-based networks by NashaKala Corporation
Note: ComShare supports the standard BIOS INT 14h calls with a slight
change in the interpretation of speed values
(see #0228 at AH=04h"SERIAL")
SeeAlso: AH=00h"SERIAL",AH=04h"SERIAL",AX=F4FFh
--------t-144000-----------------------------
INT 14 - I1541 - INSTALLATION CHECK
AX = 4000h
Return: AX = 1541h if installed
BH = I1541 major version (BCD)
BL = I1541 minor version (BCD)
CX = 0000h
--------t-144001-----------------------------
INT 14 - I1541 - TEST IF 1541 CABLE CONNECTED
AX = 4001h
Return: CF clear if connected
BL = LPT number where 1541 cable is connected (1..3)
CF set if cable not connected
Desc: scan all the LPT ports searching for the adapter cable
SeeAlso: AX=4000h
--------t-144002-----------------------------
INT 14 - I1541 - SELECT LPT PORT FOR OUTPUT
AX = 4002h
BL = LPT number (1..3)
Return: CF clear if successful
CF set otherwise
Desc: force the input output routines to work on the cable placed on LPT BL
SeeAlso: AX=4001h
--------t-144003-----------------------------
INT 14 - I1541 - RESET ALL DEVICES
AX = 4003h
Return: nothing
Desc: send a reset pulse of 100ms to all CBM devices
Note: it is necessary to wait about 2 seconds after reset before executing
other instructions
SeeAlso: AX=4000h,AX=4004h
--------t-144004-----------------------------
INT 14 - I1541 - SEND LISTEN SIGNAL
AX = 4004h
BH = device number (0..15)
Return: CF clear if successful
CF set on error
AL = error number (see #0273)
SeeAlso: AX=4005h,AX=4006h
(Table 0273)
Values for I1541 error number:
00h device not present
01h listener not ready
02h missing EOI time-out
03h EOI not completed
04h data not released
05h frame error
--------t-144005-----------------------------
INT 14 - I1541 - SEND SECONDARY ADDRESS FOR LISTEN
AX = 4005h
BL = channel number and mode (see #0274)
Return: CF clear if successful
CF set on error
AL = error number (see #0273)
SeeAlso: AX=4004h,AX=4006h
Bitfields for I1541 channel number and mode:
Bit(s) Description (Table 0274)
7-4 mode
0110 read/write
1110 close channel
1111 open channel
3-0 channel number
--------t-144006-----------------------------
INT 14 - I1541 - SEND UNLISTEN SIGNAL
AX = 4006h
Return: CF clear if successful
CF set on error
AL = error number (see #0273)
SeeAlso: AX=4004h,AX=4005h
--------t-144007-----------------------------
INT 14 - I1541 - SEND TALK SIGNAL
AX = 4007h
BH = device number (0-15)
Return: CF clear if successful
CF set on error
AL = error number (see #0273)
SeeAlso: AX=4008h,AX=4009h
--------t-144008-----------------------------
INT 14 - I1541 - SEND SECONDARY ADDRESS FOR TALK
AX = 4008h
BL = channel number and mode (see #0274)
Return: CF clear if successful
CF set on error
AL = error number (see also #0273)
40h turn around time-out
SeeAlso: AX=4007h,AX=4009h
--------t-144009-----------------------------
INT 14 - I1541 - SEND UNTALK SIGNAL
AX = 4009h
Return: CF clear if successful
CF set on error
AL = error number (see #0273)
SeeAlso: AX=4007h,AX=4008h
--------t-14400A-----------------------------
INT 14 - I1541 - SEND A BYTE TO A DEVICE
AX = 400Ah
BL = byte to send
CL = last-byte flag
00h more bytes follow
01h this is the last byte to be sent
Return: CF clear if successful
CF set on error
AL = error number (see #0273)
SeeAlso: AX=4000h,AX=400Bh
--------t-14400B-----------------------------
INT 14 - I1541 - RECEIVE A BYTE FROM A DEVICE
AX = 400Bh
Return: CF clear if successful
AL = byte received
CL = last-byte flag
00h more bytes to follow
01h received byte is the last
CF set on error
AL = error number
80h EOI response required
81h talker not ready
82h clock not set
83h clock not released
CL = 00h
SeeAlso: AX=4000h,AX=400Ah
--------t-14400C-----------------------------
INT 14 - I1541 - WAIT
AX = 400Ch
CX = number of 838ns microticks to wait (0000h means 65536, ~55ms)
Return: after wait period elapses
SeeAlso: AX=4000h,AX=400Dh
--------t-14400D-----------------------------
INT 14 - I1541 - LONGWAIT
AX = 400Dh
DX:CX = number of 838ns microticks to wait
(0000h:0000h means 4294967296, about one hour)
Example: To wait 1s you must set DX:CX=(1s/838ns)=1193180
SeeAlso: AX=4000h,AX=400Ch
--------t-14400E-----------------------------
INT 14 - I1541 - GET INFO
AX = 400Eh
Return: AX = LPT port I/O address in use (0000h if no cable in use)
BL = LPT number (1..3) in use (00h if no cable in use)
CF set if the cable is auto-detectable
CF clear if cable could not be auto-detected or is not present
SeeAlso: AX=4000h
--------S-1456-------------------------------
INT 14 U - BWCOM14 - INSTALLATION CHECK
AH = 56h
Return: CX = 0001h if installed
Program: BWCOM14 is a network serial port emulator (simulating a Hayes modem
connected to the serial port) distributed as part of the
Beame&Whiteside BW-NFS package
SeeAlso: AH=57h,AH=58h,INT 2F/AX=DF00h/BX=5445h
--------S-1457-------------------------------
INT 14 U - BWCOM14 - INITIALIZE
AH = 57h
DL = port number
Return: AL = initialization status (00h successful, 01h already initialized)
CX = port status (0001h port redirected, 0002h and FFFFh failed)
Note: after this call, all invocations of INT 14/AH=00h-03h for the specified
port will be handled by BWCOM14 until AH=58h is called
SeeAlso: AH=00h"SERIAL",AH=56h,AH=58h
--------S-1458-------------------------------
INT 14 U - BWCOM14 - SHUTDOWN
AH = 58h
Return: CX = status (0001h successful, 0002h not initialized)
Note: after this call, BWCOM14 will no longer redirect the COM port
SeeAlso: AH=56h,AH=57h
--------N-146F--BXFFFE-----------------------
INT 14 U - Connection Manager - ???
AH = 6Fh
BX = FFFEh
???
Return: ???
Program: Connection Manager by Softwarehouse Corp. permits the sharing of
serial ports over an IPX or NetBIOS-based network
--------N-146F--BXFFFF-----------------------
INT 14 - Connection Manager - INSTALLATION CHECK
AH = 6Fh
BX = FFFFh
Return: DX:BX -> Connection Manager Communication Table if installed
BX = FFFFh if not installed
SeeAlso: AH=0Dh/DX=FFFFh
--------S-146F00-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_INQUIRE" - INSTALLATION CHECK
AX = 6F00h
BX <> 4850h (usually set to 0000h for simplicity)
Return: BX = 4850h ("HP") if HP Extended BIOS serial port extensions available
AX destroyed
Note: supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F01h,AX=6F02h,AX=6F03h,AX=6F04h,INT 10/AX=6F00h,INT 14/AX=6F00h
SeeAlso: INT 17/AX=6F00h,INT 33/AX=6F00h
--------S-146F01-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_EXINIT" - INITIALIZE SERIAL PORT
AX = 6F01h
BX = port attributes (see #0275)
DX = port number (0-3)
Return: AH = line status (see #0223)
AL = modem status (see #0224)
Note: supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F00h
Bitfields for HP Vectra Extended BIOS serial port attributes:
Bit(s) Description (Table 0275)
8-5 data rate (110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200)
4-3 parity
00 none
01 odd
10 none
11 even
2 stop bits (0 = one, 1 = two)
1-0 bits per character
10 seven-bit characters
11 eight-bit characters
0x undefined
--------S-146F02-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_PUT_BUFFER" - TRANSMIT BUFFER
AX = 6F02h
CX = number of characters in buffer
DX = port number (0-3)
ES:DI -> buffer containing characters
Return: AH = line status (see #0223)
AL = modem status (see #0224)
CX = number of bytes actually sent
ES:DI -> next byte to be transferred (unchanged if all bytes sent)
Desc: send characters from the specified buffer until all characters have
been sent or an error/timeout is encountered
Note: supported by original HP Vectra AT and by ES/QS/RS series Vectras
SeeAlso: AX=6F00h,AX=6F03h,AX=6F04h,INT 17/AX=6F02h
--------S-146F03-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_GET_BUFFER" - READ DATA INTO BUFFER
AX = 6F03h
CX = size of buffer
DX = port number (0-3)
ES:DI -> buffer for received characters
Return: AH = line status (see #0223)
---on error (AH bit 7 set)---
AL = 00h
ES:DI -> next byte to be transferred
---if successful---
AL = last byte read
ES:DI unchanged
CX = number of bytes read
Desc: read characters into the specified buffer until the buffer is filled
or a timeout occurs
Notes: supported by original HP Vectra AT and by ES/QS/RS series Vectras
polls the Data Set Ready modem status and Data Ready line status bits
to determine when characters are available
SeeAlso: AX=6F00h,AX=6F02h,AX=6F04h
--------S-146F04-----------------------------
INT 14 - HP Vectra EX-BIOS - "F14_TRM_BUFFER" - READ UNTIL TERMINATOR
AX = 6F04h
BL = lowest termination character
BH = highest termination character
CX = size of buffer
DX = port number (0-3)
ES:DI -> buffer for received characters
Return: AH = line status (see #0223)
---on error (AH bit 7 set)---
AL = 00h
ES:DI -> next byte to be transferred
---if successful---
AL = last byte read
ES:DI unchanged
CX = number of bytes read
Desc: read characters into the specified buffer until the buffer is filled,
a character in the specified range is received, or a timeout occurs
Notes: supported by original HP Vectra AT and by ES/QS/RS series Vectras
polls the Data Set Ready modem status and Data Ready line status bits
to determine when characters are available
SeeAlso: AX=6F00h,AX=6F02h,AX=6F03h
--------S-147E-------------------------------
INT 14 - FOSSIL - INSTALL AN EXTERNAL APPLICATION FUNCTION
AH = 7Eh
AL = code assigned to external application (80h-BFh)
80h reserved for communications FOSSIL
81h video FOSSIL
82h reserved for keyboard FOSSIL
83h reserved for system FOSSIL
ES:DX -> entry point
Return: AX = 1954h
BL = code assigned to application (same as input AL)
DH = 00h failed
01h successful
SeeAlso: AH=7Fh,AH=80h"FOSSIL",AX=8100h,AH=82h"FOSSIL",AH=83h"FOSSIL"
--------S-147F-------------------------------
INT 14 - FOSSIL - REMOVE AN EXTERNAL APPLICATION FUNCTION
AH = 7Fh
AL = code assigned to external application
ES:DX -> entry point
Return: AX = 1954h
BL = code assigned to application (same as input AL)
DH = 00h failed
01h successful
SeeAlso: AH=7Eh
--------S-1480-------------------------------
INT 14 - COMMUNICATIONS FOSSIL
AH = 80h
SeeAlso: AH=7Eh
--------S-1480-------------------------------
INT 14 - COURIERS.COM - INSTALLATION CHECK
AH = 80h
Return: AH = E8h if loaded
Program: COURIERS is a TSR utility by PC Magazine
--------S-148000-----------------------------
INT 14 - ARTICOM - INSTALLATION CHECK
AX = 8000h
Return: AL = FFh if installed
BH = major version
BL = minor version
Program: ArtiCom is an asynchronous communications driver by Artisoft which
works on top of NetBIOS and allows modem/serial-port sharing by
programs using INT 14 for serial I/O.
Note: ArtiCom supports 32 simultaneous COM ports using multiport cards and
drivers
SeeAlso: AH=00h"SERIAL",AH=01h,AH=02h,AH=03h,AH=04h"SERIAL",AH=05h"SERIAL"
SeeAlso: AX=8001h,AX=8002h
--------S-148000-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET ERROR CODE AND BUFFER STATUS
AX = 8000h
DX = port number
Return: AX = code for last error (see #0276)
BX = number of characters in output buffer
CX = nubmer of characters in input buffer
DX = state flag (see #0277)
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
SeeAlso: AX=8001h"COMM-DRV",AX=8002h"COMM-DRV",AX=8003h"COMM-DRV"
(Table 0276)
Values for COMM-DRV error code:
00h no error
01h buffer not set or attempted to change buffer for active port
02h port not active
03h transmit buffer full
04h receive buffer full
05h syntax error
06h invalid buffer size
07h invalid port
08h handler changed
09h invalid baud rate
0Ah invalid parity setting
0Bh invalid data length
0Ch invalid number of stop bits
0Dh invalid protocol number
0Eh IRQ changed
0Fh port changged
10h invalid threshold setting
11h invalid IRQ number
12h interrupts not enabled
13h invalid break syntax
14h fatal error
15h CTS error
16h invalid RS232 I/O port address
17h environment variable not set
18h error on IOCTL call
19h error during atexit cleanup
1Ah error mapping for direct calls
1Bh error opening device
1Ch unable to allocate memory
1Dh error on external micro card
1Eh card changed error
1Fh card type error
20h not supported
21h parent port error
22h card command buffer full
23h no subdevice for this port
24h unknown error
25h external card busy
26h no more timers available
27h INT 14 vector changed
28h INT 08 vector changed
29h DPMI error
2Ah TSR buffer too small (or nonexistent)
2Bh out of asynchronous resources
2Ch out of timer resources
2Dh out of "other" timer resources
2Eh file I/O error
2Fh hardware memory > 64K
Bitfields for state flag :
Bit(s) Description (Table 0277)
0 port is active
1 output throttled (XOFF received, or DSR or CTS reset)
2 input throttled (XOFF sent, or DTR or RTS reset)
--------S-148001-----------------------------
INT 14 - ARTICOM - UNLOAD ASYNCHRONOUS REDIRECTOR FROM MEMORY
AX = 8001h
Return: AX = error code, if error (see #0279)
SeeAlso: AX=8000h"ARTICOM",AX=8002h"ARTICOM",AX=8003h"ARTICOM"
Index: uninstall;ARTICOM
--------S-148001-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET PORT PARAMETERS
AX = 8001h
DX = port number
Return: BX:DI -> Port Control Block (see #0286)
SeeAlso: AX=8000h"COMM-DRV",AX=8002h"COMM-DRV",AX=8003h"COMM-DRV"
--------S-148002-----------------------------
INT 14 - ARTICOM - GET ASYNCHRONOUS REDIRECTOR STATUS
AX = 8002h
ES:DI -> buffer for redirector status structure (see #0278)
Return: AX = error code, if error (see #0279)
SeeAlso: AX=8000h"ARTICOM",AX=8003h"ARTICOM"
Format of ARTICOM redirector status:
Offset Size Description (Table 0278)
00h WORD redirector major and minor version numbers
02h WORD redirectable ports found
04h WORD redirectable ports + local ports found
06h WORD redirector internal buffer size
08h WORD maximum servers maintained
0Ah WORD number of adapters found
--------S-148002-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET PORT PARAMETERS
AX = 8002h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
BX:DI -> Port Control Block (see #0286) (modifyable portion only)
SeeAlso: AX=8000h"COMM-DRV",AX=8001h"COMM-DRV",AX=8003h"COMM-DRV"
--------S-148003-----------------------------
INT 14 - ARTICOM - TRANSLATE ERROR CODE TO ERROR STRING
AX = 8003h
CX = error number to translate (see #0279)
Return: ES:DI -> ASCIZ error text or 0000h:0000h if unable to translate
SeeAlso: AX=8000h
(Table 0279)
Values for ARTICOM error codes:
00h "No error"
01h "An invalid port number was specified"
02h "Port is already redirected"
03h "Too many ports redirected"
04h "Cannot locate the server"
05h "Server is busy"
06h "Access denied"
07h "Resource in use"
08h "Resource in use - request queued"
09h "No such resource"
0Ah "Invalid username/password pair"
0Bh "Noncompatible version number"
0Ch "Can't remove from memory"
0Dh "Bad NETBIOS adapter number"
0Eh "No more entries in list"
0Fh "Resource is not available at this time"
10h "Invalid value to INT 14 call"
--------S-148003-----------------------------
INT 14 - COMM-DRV v14.0 - READ PORT METRICS - GET I/O BUFFER SIZES
AX = 8003h
DX = port number
Return: AX = number of characters in input buffer
BX = input buffer size
CX = number of characters in output buffer
DX = output buffer size
SeeAlso: AX=8000h"COMM-DRV",AX=8001h"COMM-DRV",AX=8002h"COMM-DRV"
--------S-148004-----------------------------
INT 14 - ARTICOM - ATTACH ASYNCHRONOUS RESOURCE
AX = 8004h
DX = port to redirect (COM1=0, COM2=1, ...)
CH = attach type
CL = adapter to use for attach, 0FFh to search all
ES:DI -> attachment structure (see #0280)
Return: AX = error code, if error (see #0279)
Note: The wildcard '*' is supported in the server and resource fields. If
wild cards are used then the first matching available server is
attached.
SeeAlso: AX=8000h,AX=8003h,AX=8005h
Format of ARTICOM attachment structure:
Offset Size Description (Table 0280)
00h 16 BYTEs server to look for attach
10h 16 BYTEs attach to resource name
20h 16 BYTEs username for attach
30h 16 BYTEs password for username or resource
40h BYTE attach type
00h normal
01h queue if resource is in use (not yet supported in v1.00)
--------S-148005-----------------------------
INT 14 - ARTICOM - DETACH ASYNCHRONOUS RESOURCE
AX = 8005h
DX = port to detach (COM1=0, COM2=1, ...)
Return: AX = error code, if error (see #0279)
Note: only a previously attached resource can be detached
SeeAlso: AX=8000h,AX=8003h,AX=8004h
--------S-148006-----------------------------
INT 14 - ARTICOM - GET RESOURCE INFORMATION
AX = 8006h
BX = remote port (COM1=0, COM2=1, ...)
CL = adapter number, FFh to try all adapters
ES:DI -> resource information structure (see #0281)
DS:SI -> 16 byte server name. See note.
Return: AX = error code, if error (see #0279)
BX = next remote port, recall to get next resource info
Note: Wild cards supported in both the resource field and server name
string DS:SI. If wild cards used then first matching available
resource information is searched. Set the resource field to FFh to
return all resources.
SeeAlso: AX=8000h,AX=8002h,AX=8003h,AX=8007h
Format of ARTICOM resource information structure:
Offset Size Description (Table 0281)
00h BYTE 00h = free, else used
01h 16 BYTEs resource name
11h 16 BYTEs username of resource user
21h WORD amount of time used
23h WORD amount of time remaining
53h 48 BYTEs description of resource
93h 64 BYTEs initialization string for modem
B3h 32 BYTEs dial string for modem
D3h 32 BYTEs hang-up string for modem
--------S-148007-----------------------------
INT 14 - ARTICOM - GET REDIRECTED PORT INFORMATION
AX = 8007h
DX = port index (COM1=0, COM2=1, ...)
ES:DI -> buffer for port information structure (see #0282)
Return: CF clear if redirection info returned and port is redirected
CF set if not a redirected port
AX = error code, if error (see #0279)
SeeAlso: AX=8000h,AX=8003h,AX=8006h,AX=8008h
Format of ARTICOM port information structure:
Offset Size Description (Table 0282)
00h 16 BYTEs server name resource is on
10h BYTE adapter number server is on
11h 16 BYTEs resource name
21h WORD remote port index, use to get additional information
23h WORD buffer size
25h WORD baud rate (see #0283)
26h BYTE modem status register
27h BYTE modem control register
28h BYTE line status register
29h BYTE line control register
2Ah BYTE flow control in use: 0 - NONE, 1 - XON/XOFF, 2 - RTS/CTS
2Bh WORD send timeout in ticks
2Dh WORD receive timeout in ticks
2Fh WORD time used on remote port
31h WORD time left before timeout
33h BYTE if server changes allowed?
34h WORD FFFFh (-1) if connection ok, else old port index
(Table 0283)
Values for ARTICOM baud rate:
00h 110
01h 150
02h 300
03h 600
04h 1200
05h 2400
06h 4800
07h 9600
08h 19200
09h 38400
0Ah 57600
0Bh 115200
0Ch 134.5
0Dh 1800
0Eh 2000
0Fh 3600
10h 7200
SeeAlso: #0228
--------S-148008-----------------------------
INT 14 - ARTICOM - GET AVAILABLE SERVER NAME
AX = 8008h
BX = server index (0,1,...)
ES:DI -> server name structure (see #0284)
Return: AX = error code, if error (see #0279)
BX = next remote port, repeat call to get next available server
Note: the wildcard '*' is supported in the server name field. Set the
server name to FFh to search for all servers.
SeeAlso: AX=8000h,AX=8003h,AX=8007h
Format of ARTICOM server name structure:
Offset Size Description (Table 0284)
00h 16 BYTEs (call) ASCIZ server name
10h BYTE (ret) the adapter server is found
--------S-148009-----------------------------
INT 14 - ARTICOM - SET SEND AND RECEIVE TIMEOUTS
AX = 8009h
BX = send timeout in ticks
CX = receive timeout in ticks
DX = port index (COM1=0, COM2=1, ...)
Return: nothing
SeeAlso: AX=8000h,AX=800Ah
--------S-14800A-----------------------------
INT 14 - ARTICOM - MODIFY FLOW CONTROL
AX = 800Ah
BL = flow control type (00h none, 01h XON/XOFF, 02h RTS/CTS)
DX = port index (COM1=0, COM2=1, ...)
Return: AX = error code, if error (see #0279)
Note: for attached ports only!
SeeAlso: AX=8000h,AX=8003h,AX=8009h
--------S-148025-----------------------------
INT 14 - ARTICOM - SET INTERNAL SEND/RECEIVE VECTOR
AX = 8025h
DS:DX -> address of trap function (see #0285) to call on read/write
Return: nothing
Note: setting the vector to a user function allows the redirector's activity
to be monitored.
SeeAlso: AX=8000h,AX=8035h,INT 21/AH=25h
(Table 0285)
Values ARTICOM trap function is called with:
AH = operation
80h reading character
81h writing character
AL = character
Return: AX must be preserved
far JUMP to old trap function (see AX=8035h)
--------S-148035-----------------------------
INT 14 - ARTICOM - GET INTERNAL SEND/RECEIVE VECTOR
AX = 8035h
Return: ES:BX -> address of current send/receive routine
Note: this function returns the address of the routine which is called
inside A-REDIR.EXE each time a character is received or sent on the
active COM port.
SeeAlso: AX=8000h,AX=8025h,INT 21/AH=35h
--------S-1481-------------------------------
INT 14 - COURIERS.COM - CHECK IF PORT BUSY
AH = 81h
AL = port number (1-4)
Return: AH = 00h port available
01h port exists but already in use
02h port nonexistent
Program: COURIERS is a TSR utility by PC Magazine
SeeAlso: AH=83h,AH=8Dh
--------S-1481-------------------------------
INT 14 - COMM-DRV - EXTENDED INITIALIZATION
AH = 81h
BX:DI -> port control block (see #0286)
DX = port number
Return: AH = line status register (see #0223)
error if bit 7 set
AL = modem status register (see #0224)
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
Note: AX=8001h should be called first to fill in the port control block
SeeAlso: AH=00h,AX=8001h,AH=82h"COMM-DRV",AH=86h"COMM-DRV"
Format of COMM-DRV port control block:
Offset Type Description (Table 0286)
00h WORD port IO address
02h WORD port IRQ
04h WORD baud rate
06h WORD parity
08h WORD data bits
0Ah WORD stop bits
0Ch WORD break status (0000h off)
0Eh WORD flow control protocol
10h BYTE input block
11h BYTE output block
12h WORD low threshold
14h WORD high threshold
16h WORD segment of buffer
18h WORD offset of buffer
1Ah WORD input buffer length
1Ch WORD output buffer length
1Eh BYTE auxiliary address
1Fh BYTE spare
20h 4 WORDs spares
--------V-148100-----------------------------
INT 14 - VIDEO FOSSIL - RETURN VFOSSIL INFORMATION
AX = 8100h
ES:DI -> buffer for VFOSSIL information (see #0287)
Return: AX = 1954h if installed
SeeAlso: AH=7Eh,AX=8101h
Format of VFOSSIL information:
Offset Size Description (Table 0287)
00h WORD size of information in bytes, including this field
02h WORD VFOSSIL major version
04h WORD VFOSSIL revision level
06h WORD highest VFOSSIL application function supported
--------V-148101-----------------------------
INT 14 - VIDEO FOSSIL - OPEN VFOSSIL
AX = 8101h
ES:DI -> buffer for application function table (see #0288)
CX = length of buffer in bytes
Return: AX = 1954h if installed
BH = highest VFOSSIL application function supported
Note: the number of initialized pointers in the application function table
will never exceed CX/4; if the buffer is large enough, BH+1 pointers
will be initialized
SeeAlso: AX=8102h
Format of VFOSSIL application function table:
Offset Size Description (Table 0288)
00h DWORD -> function to query current video mode (VioGetMode)(see #0293)
04h DWORD -> function to set video mode (VioSetMode) (see #0294)
08h DWORD -> function to query hardware config (VioGetConfig) (see #0295)
0Ch DWORD -> function to write data in TTY mode (VioWrtTTY) (see #0296)
10h DWORD -> function to get current ANSI state (VioGetANSI) (see #0297)
14h DWORD -> function to set new ANSI state (VioSetANSI) (see #0298)
18h DWORD -> function to get curr cursor position (VioGetCurPos)
(see #0299)
1Ch DWORD -> function to set cursor position (VioSetCurPos) (see #0300)
20h DWORD -> function to get cursor shape (VioGetCurType) (see #0301)
24h DWORD -> function to set cursor shape (VioSetCurType) (see #0302)
28h DWORD -> function to scroll screen up (VioScrollUp) (see #0303)
2Ch DWORD -> function to scroll screen down (VioScrollDn) (see #0304)
30h DWORD -> function to read cell string from screen (VioReadCellStr)
(see #0305)
34h DWORD -> function to read char string from screen (VioReadCharStr)
(see #0306)
38h DWORD -> function to write a cell string (VioWrtCellStr)
(see #0307)
3Ch DWORD -> function to write char string, leaving attr (VioWrtCharStr)
(see #0308)
40h DWORD -> function to write char string,const attr (VioWrtCharStrAttr)
(see #0309)
44h DWORD -> function to replicate an attribute (VioWrtNAttr)
(see #0310)
48h DWORD -> function to replicate a cell (VioWrtNCell)
(see #0311)
4Ch DWORD -> function to replicate a character (VioWrtNChar)
(see #0312)
Format of VFOSSIL video mode data structure:
Offset Size Description (Table 0289)
00h WORD length of structure including this field
02h BYTE mode characteristics
bit 0: clear if MDA, set otherwise
bit 1: graphics mode
bit 2: color disabled (black-and-white)
03h BYTE number of colors supported (1=2 colors, 4=16 colors, etc)
04h WORD number of text columns
06h WORD number of text rows
08h WORD reserved
0Ah WORD reserved
0Ch DWORD reserved
SeeAlso: #0293,#0294
Format of VFOSSIL video configuration data:
Offset Size Description (Table 0290)
00h WORD structure length including this field
02h WORD adapter type
00h monochrome/printer
01h CGA
02h EGA
03h VGA
07h 8514/A
04h WORD display type
00h monochrome
01h color
02h enhanced color
09h 8514
06h DWORD adapter memory size
SeeAlso: #0295
Format of VFOSSIL cursor type record:
Offset Size Description (Table 0291)
00h WORD cursor start line
02h WORD cursor end line
04h WORD cursor width (always 01h)
06h WORD cursor attribute (FFFFh = hidden)
(Table 0292)
Values for VFOSSIL error code:
0000h successful
0074h internal VIO failure
0163h unsupported mode
0166h invalid row value
0167h invalid column value
017Eh buffer too small
01A5h invalid VIO parameter
01B4h invalid VIO handle
(Table 0293)
Call VioGetMode with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to video mode data structure (see #0289)
Return: AX = error code (00h, 74h, 17Eh, 1B4h) (see #0292)
SeeAlso: #0294
(Table 0294)
Call VioSetMode with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to video mode data structure (see #0289)
Return: AX = error code (00h, 74h, 163h, 17Eh, 1A5h, 1B4h) (see #0292)
SeeAlso: #0293
(Table 0295)
Call VioGetConfig with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to video configuration data buffer (see #0290)
Return: AX = error code (00h, 74h, 17Eh, 1B4h) (see #0292)
(Table 0296)
Call VioWrtTTY with:
STACK: WORD VIO handle (must be 00h)
WORD length of string
DWORD pointer to character string to be written to screen
Return: AX = error code (00h, 74h, 1B4h) (see #0292)
Notes: write wraps at end of line and terminates if it reaches end of screen
in ANSI mode, ANSI control sequences are interpreted, and this func is
not required to be reentrant; in non-ANSI mode, the function is
reentrant and may be called from within an MS-DOS function call
(Table 0297)
Call VioGetANSI with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to WORD which will be set to 00h if ANSI is off
or 01h if ANSI is on
Return: AX = error code (00h, 74h, 1B4h) (see #0292)
SeeAlso: #0298
(Table 0298)
Call VioSetANSI with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to WORD indicating new state of ANSI
00h off, 01h on
Return: AX = error code (00h, 74h, 1A4h, 1B4h) (see #0292)
SeeAlso: #0297
(Table 0299)
Call VioGetCurPos with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to WORD to hold current cursor column (0-based)
DWORD pointer to WORD to hold current cursor row (0-based)
Return: AX = error code (00h, 74h, 1B4h) (see #0292)
SeeAlso: #0300
(Table 0300)
Call VioSetCurPos with:
STACK: WORD VIO handle (must be 00h)
WORD cursor column
WORD cursor row
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: if either coordinate is invalid, the cursor is not moved
SeeAlso: #0299
(Table 0301)
Call VioGetCurType with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to cursor type record (see #0291)
Return: AX = error code (00h, 74h, 1B4h) (see #0292)
SeeAlso: #0302
(Table 0302)
Call VioSetCurType with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to cursor type record (see #0291)
Return: AX = error code (00h, 74h, 1A4h, 1B4h) (see #0292)
SeeAlso: #0303
(Table 0303)
Call VioScrollUp with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to char/attr cell for filling emptied rows
WORD number or rows to scroll (FFFFh = clear area)
WORD right column of scroll area
WORD bottom row of scroll area
WORD left column of scroll area
WORD top row of scroll area
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
SeeAlso: #0304,INT 10/AH=06h
(Table 0304)
Call VioScrollDn with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to char/attr cell for filling emptied rows
WORD number or rows to scroll (FFFFh = clear area)
WORD right column of scroll area
WORD bottom row of scroll area
WORD left column of scroll area
WORD top row of scroll area
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
SeeAlso: #0303,INT 10/AH=07h
(Table 0305)
Call VioReadCellStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start reading
WORD row at which to start reading
DWORD pointer to WORD containing length of buffer in bytes
on return, WORD contains number of bytes actually read
DWORD pointer to buffer for cell string
Return: AX = error code (00h, 74h, 166h ,167h, 1B4h) (see #0292)
(Table 0306)
Call VioReadCharStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start reading
WORD row at which to start reading
DWORD pointer to WORD containing length of buffer in bytes
on return, WORD contains number of bytes actually read
DWORD pointer to buffer for character string
Return: AX = error code (00h, 74h, 166h ,167h, 1B4h) (see #0292)
(Table 0307)
Call VioWrtCellStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD length of cell string in bytes
DWORD pointer to cell string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 0308)
Call VioWrtCharStr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD length of character string
DWORD pointer to character string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 0309)
Call VioWrtCharStrAttr with:
STACK: WORD VIO handle (must be 00h)
DWORD pointer to attribute to be applied to each character
WORD column at which to start writing
WORD row at which to start writing
WORD length of character string
DWORD pointer to character string to write
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 0310)
Call VioWrtNAttr with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD number of times to write attribute
DWORD pointer to display attribute to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 0311)
Call VioWrtNCell with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD number of times to write cell
DWORD pointer to cell to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: write wraps at end of line and terminates if it reaches end of screen
(Table 0312)
Call VioWrtNChar with:
STACK: WORD VIO handle (must be 00h)
WORD column at which to start writing
WORD row at which to start writing
WORD number of times to write character
DWORD pointer to character to replicate
Return: AX = error code (00h, 74h, 166h, 167h, 1B4h) (see #0292)
Note: write wraps at end of line and terminates if it reaches end of screen
--------V-148102-----------------------------
INT 14 - VIDEO FOSSIL - CLOSE VFOSSIL
AX = 8102h
Return: AX = 1954h
Note: terminates all operations; after this call, the video FOSSIL may either
be removed from memory or reinitialized
SeeAlso: AX=8101h,AX=8103h
--------V-148103-----------------------------
INT 14 - VIDEO FOSSIL - UNINSTALL
AX = 8103h
Return: AX = 1954h
Note: this is an extension to the VFOSSIL spec by Bob Hartman's VFOS_IBM
--------K-1482-------------------------------
INT 14 - KEYBOARD FOSSIL
AH = 82h
SeeAlso: AH=7Eh
--------S-1482-------------------------------
INT 14 - COURIERS.COM - CONFIGURE PORT
AH = 82h
AL = port number (1-4)
BX = speed (bps)
CX = bit flags
bit 0: enable input flow control
bit 1: enable output flow control
bit 2: use X.PC protocol (not yet implemented)
Return: nothing
SeeAlso: AH=00h,AH=8Ch,INT 7A"X.PC"
--------S-1482-------------------------------
INT 14 - COMM-DRV v14.0 - PORT CLEANUP
AH = 82h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
Desc: reset the port to its state before the AH=81h initialization and unhook
any interrupts used by the port
SeeAlso: AH=81h"COMM-DRV",AH=83h"COMM-DRV"
----------1483-------------------------------
INT 14 - SYSTEM FOSSIL
AH = 83h
SeeAlso: AH=7Eh
--------S-1483-------------------------------
INT 14 - COURIERS.COM - START INPUT
AH = 83h
ES:BX -> circular input buffer
CX = length of buffer
(should be at least 128 bytes if input flow control enabled)
Return: nothing
SeeAlso: AH=18h,AH=87h,AH=8Dh,AH=A5h"BAPI"
--------S-1483-------------------------------
INT 14 - COMM-DRV v14.0 - FLUSH COMMUNICATION BUFFERS
AH = 83h
DX = port number
AL = subfunction
00h flush input buffer
01h flush output buffer
02h flush both buffers
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AH=81h"COMM-DRV",AH=84h"COMM-DRV"
--------S-1484-------------------------------
INT 14 - COURIERS.COM - READ CHARACTER
AH = 84h
Return: ZF set if no characters available
ZF clear
AL = character
AH = modem status bits
bit 7: set on input buffer overflow
SeeAlso: AH=02h,AH=86h,AH=89h
--------S-1484-------------------------------
INT 14 - COMM-DRV v14.0 - SEND PACKET
AH = 84h
CX = packet length in bytes
DX = port number
ES:DI -> packet to be sent
Return: AH = line status (see #0223)
bit 7 set on error
AL destroyed
SeeAlso: AH=83h"COMM-DRV",AH=85h"COMM-DRV",AH=86h"COMM-DRV"
--------S-1485-------------------------------
INT 14 - COURIERS.COM - FLUSH PENDING INPUT
AH = 85h
Return: nothing
SeeAlso: AH=0Ah,AH=88h"COURIERS"
--------S-1485-------------------------------
INT 14 - COMM-DRV v14.0 - RECEIVE PACKET
AH = 85h
CX = length of packet in bytes
DX = port number
ES:DI -> buffer for packet
Return: AH = line status (see #0223)
bit 7 set on error
AL destroyed
Note: this call requires that at least the requested number of bytes are
already present in the input buffer, and will fail if there are
fewer bytes available
SeeAlso: AH=84h"COMM-DRV",AH=86h"COMM-DRV",AH=8Eh"COMM-DRV"
--------S-1486-------------------------------
INT 14 - COURIERS.COM - START OUTPUT
AH = 86h
ES:BX -> output buffer
CX = length of output buffer
Return: nothing
SeeAlso: AH=19h,AH=83h"COURIERS",AH=A4h"BAPI"
--------S-1486-------------------------------
INT 14 - COMM-DRV v14.0 - SET INPUT/OUTPUT TIMEOUTS
AH = 86h
BL = maximum clock ticks to wait before signalling error on input func
BH = maximum clock ticks to wait before signalling error on output
DX = port number
SI = input timeout in clock ticks if BL=FFh and BH=FFh
DI = output timeout in clock ticks if BL=FFh and BH=FFh
Return: AH bit 7 set on error
AH bit 7 clear if successful
Note: functions 02h, 85h, and 8Eh will wait for the input timeout before
returning an error when no data is available; functions 01h and 84h
will wait for the output timeout before returning an error if there
is no space to output the data
SeeAlso: AH=01h,AH=02h,AH=84h"COMM-DRV",AH=85h"COMM-DRV",AH=8Eh"COMM-DRV"
--------S-1487-------------------------------
INT 14 - COURIERS.COM - OUTPUT STATUS
AH = 87h
Return: AX = number of unsent characters
SeeAlso: AH=88h"COURIERS"
--------S-1487-------------------------------
INT 14 - COMM-DRV v14.0 - TURN ON DTR
AH = 87h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=88h"COMM-DRV",AH=89h"COMM-DRV"
--------S-1488-------------------------------
INT 14 - COURIERS.COM - ABORT OUTPUT
AH = 88h
SeeAlso: AH=09h"FOSSIL",AH=85h"COURIERS"
--------S-1488-------------------------------
INT 14 - COMM-DRV v14.0 - TURN OFF DTR
AH = 88h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
--------S-1489-------------------------------
INT 14 - COURIERS.COM - SEND SINGLE CHARACTER
AH = 89h
CL = character to send
Return: nothing
SeeAlso: AH=01h,AH=84h"COURIERS"
--------S-1489-------------------------------
INT 14 - COMM-DRV v14.0 - TURN ON RTS
AH = 89h
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=87h"COMM-DRV",AH=8Ah"COMM-DRV"
--------S-148A-------------------------------
INT 14 - COURIERS.COM - SEND BREAK
AH = 8Ah
Return: nothing
SeeAlso: AH=89h"COURIERS",AH=FAh
--------S-148A-------------------------------
INT 14 - COMM-DRV v14.0 - TURN OFF RTS
AH = 8Ah
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=8000h"COMM-DRV",AH=88h"COMM-DRV",AH=89h"COMM-DRV"
--------S-148B-------------------------------
INT 14 - COMM-DRV v14.0 - SET USER INTERRUPT ROUTINE
AH = 8Bh
CX = bitmask of interrupt to process
00h = deinstall
BX:DI -> DWORD containing address of function to be called
Return: AH bit 7 clear if successful
AH bit 7 set on error
--------S-148C-------------------------------
INT 14 - COURIERS.COM - SET SPEED
AH = 8Ch
BX = speed in bps
Return: nothing
SeeAlso: AH=00h,AH=82h"COURIERS"
--------S-148C-------------------------------
INT 14 - COMM-DRV v14.0 - READ UART REGISTER
AH = 8Ch
AL = register offset
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
AL = contents of UART register
SeeAlso: AH=8Dh"COMM-DRV"
--------S-148D-------------------------------
INT 14 - COURIERS.COM - DECONFIGURE PORT
AH = 8Dh
Return: nothing
SeeAlso: AH=82h"COURIERS"
--------S-148D-------------------------------
INT 14 - COMM-DRV v14.0 - WRITE UART REGISTER
AH = 8Dh
AL = register offset
BL = new value for UART register
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AH=8Ch"COMM-DRV"
--------S-148E-------------------------------
INT 14 - COMM-DRV v14.0 - READ PACKET NONDESTRUCTIVELY
AH = 8Eh
CX = length of packet in bytes
DX = port number
ES:DI -> buffer for packet
Return: AH = line status (see #0223)
bit 7 set on error (see AX=8000h"COMM-DRV")
AL destroyed
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
Desc: retrieve a packet from the input buffer without removing it from the
buffer
Note: this call requires that at least the requested number of bytes are
already present in the input buffer, and will fail if there are
fewer bytes available
SeeAlso: AX=8000h"COMM-DRV",AH=84h"COMM-DRV",AH=85h"COMM-DRV",AH=86h"COMM-DRV"
--------S-14A0-------------------------------
INT 14 - 3com BAPI SERIAL I/O - CONNECT TO PORT
AH = A0h
ES:BX -> ASCIZ internet host name
CX = length of name
Return: AH = return code (00h,04h-06h,08h,0Ah-0Ch) (see #0313)
CL = session ID
Program: the Bridge Application Program Interface is a set of functions which
makes many of the details of LAN communications transparent
Note: Novell TELAPI.EXE returns AH=09h (not supported) and CL=00h
SeeAlso: AH=A1h"BAPI",AH=A2h"BAPI",AH=A5h"BAPI",AX=AF00h
(Table 0313)
Values for 3com BAPI return code:
00h successful
01h no characters written
02h no characters read
03h no such session
04h clearinghouse name not found
05h no response from host
06h no more sessions available
07h session aborted
08h invalid clearinghouse name
09h not supported
0Ah internal (general) network error
0Bh out of memory
0Ch invalid IP address
--------S-14A0--CXFFFF-----------------------
INT 14 - Interconnections Inc. TES - INSTALLATION CHECK/STATUS REPORT
AH = A0h
CX = FFFFh
Return: CF clear if successful
AX = 5445h ('TE')
CX <> FFFFh
DX = port number
CF set on error
Program: TES is a network serial port emulation program
SeeAlso: AH=A1h"TES"
--------S-14A1-------------------------------
INT 14 - 3com BAPI SERIAL I/O - DISCONNECT FROM PORT
AH = A1h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #0313)
AL destroyed (Novell TELAPI.EXE)
SeeAlso: AH=A0h"BAPI"
--------S-14A1-------------------------------
INT 14 - Interconnections Inc. TES - GET LIST OF SESSIONS WITH STATUS
AH = A1h
Return: CX = number of active sessions
ES:SI -> status array (see #0314)
SeeAlso: AH=A2h"TES",AH=A3h"TES"
Format of Interconnections TES status array entry:
Offset Size Description (Table 0314)
00h BYTE status
01h WORD offset of name
--------S-14A2-------------------------------
INT 14 - 3com BAPI SERIAL I/O - WRITE CHARACTER
AH = A2h
AL = character
DH = session ID (00h for external session managment)
Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #0313)
SeeAlso: AH=A0h"BAPI",AH=A3h"BAPI",AH=A4h"BAPI"
--------S-14A2-------------------------------
INT 14 - Interconnections Inc. TES - GET LIST OF SERVER NAMES
AH = A2h
Return: CX = number of servers
ES:SI -> array of offsets from ES for server names
SeeAlso: AH=A1h"TES"
--------S-14A3-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ CHARACTER
AH = A3h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,02h,03h,07h,0Ah,0Bh) (see #0313)
AL = character read or 00h if none available
SeeAlso: AH=A0h"BAPI",AH=A2h"BAPI",AH=A5h"BAPI",AH=A7h"BAPI"
--------S-14A3-------------------------------
INT 14 - Interconnections Inc. TES - START A NEW SESSION
AH = A3h
ES:SI -> ???
Return: CF clear if successful
AX = 5445h ('TE')
CX <> FFFFh
DX = port number
CF set on error
SeeAlso: AH=A1h"TES",AH=A4h"TES",AH=A6h"TES"
--------S-14A4-------------------------------
INT 14 - 3com BAPI SERIAL I/O - WRITE BLOCK
AH = A4h
CX = length of buffer in bytes
DH = session ID (00h for external session managment)
ES:BX -> buffer containing data
Return: AH = return code (00h,01h,03h,07h,0Ah,0Bh) (see #0313)
CX = number of bytes actually sent
SeeAlso: AH=19h,AH=86h,AH=A0h"BAPI",AH=A5h"BAPI"
--------S-14A4-------------------------------
INT 14 - Interconnections Inc. TES - HOLD CURRENTLY ACTIVE SESSION
AH = A4h
???
Return: ???
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A5-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ BLOCK
AH = A5h
CX = length of buffer
DH = session ID (00h for external session managment)
ES:BX -> buffer for data
Return: AH = return code (00h,02h,03h,07h,0Ah,0Bh) (see #0313)
CX = number of bytes actually read
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A0h"BAPI",AH=A3h"BAPI",AH=A4h"BAPI"
SeeAlso: AH=A7h"BAPI",AX=FF02h
--------S-14A5-------------------------------
INT 14 - Interconnections Inc. TES - RESUME A SESSION
AH = A5h
AL = session number
Return: ???
SeeAlso: AH=A4h"TES",AH=A6h"TES"
--------S-14A6-------------------------------
INT 14 - 3com BAPI SERIAL I/O - SEND SHORT BREAK
AH = A6h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #0313)
Desc: generate a short break signal; if data delivery was turned off by the
break, wait for the host to turn it on again
SeeAlso: AH=1Ah,AH=8Ah,AH=FAh,AH=A0h"BAPI"
--------S-14A6-------------------------------
INT 14 - Interconnections Inc. TES - DROP A SESSION
AH = A6h
AL = session number
Return: AH = status
00h successful
else error
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A7-------------------------------
INT 14 - 3com BAPI SERIAL I/O - READ STATUS
AH = A7h
DH = session ID (00h for external session managment)
Return: AH = return code (00h,03h,07h,0Ah,0Bh) (see #0313)
CX = number of bytes available for reading
Note: Novell TELAPI.EXE v4.01 always returns either 0 or 1 bytes available
SeeAlso: AH=A5h"BAPI"
--------S-14A7-------------------------------
INT 14 - Interconnections Inc. TES - SWITCH TO NEXT ACTIVE SESSION
AH = A7h
???
Return: ???
SeeAlso: AH=A3h"TES",AH=A5h"TES"
--------S-14A8-------------------------------
INT 14 - Interconnections Inc. TES - SEND STRING TO COMMAND INTERPRETER
AH = A8h
AL = 00h no visible response
ES:SI -> ASCIZ command
Return: ???
--------N-14A8-------------------------------
INT 14 - Novell TelAPI v4.01 - CONNECTION INFORMATION???
AH = A8h
DH = session ID???
CH = subfunction
02h ???
0Dh ???
0Fh ???
10h ???
11h ???
28h ???
else
Return: AH = 09h (not supported)
Return: AH = return code (see #0313)
00h successful
CL = ??? (0/1/8) (subfunctions 02h,0Dh,0Fh,10h)
CL = ??? (7Fh/FFh) (subfunction 28h)
CX = ??? (subfunction 11h)
SeeAlso: AH=A9h"TelAPI"
--------N-14A9-------------------------------
INT 14 - Novell TelAPI v4.01 - CONNECTION CONTROL???
AH = A9h
DH = session ID???
CH = subfunction
02h ???
0Dh ???
0Fh ???
10h ???
11h ???
28h ???
else
Return: AH = 09h (not supported)
???
Return: AH = return code (see #0313)
???
SeeAlso: AH=A8h"TelAPI",AH=E4h,INT 6B/AX=0600h
--------V-14AA01-----------------------------
INT 14 - DimVGA v2.0+ - INSTALLATION CHECK
AX = AA01h
Return: AX = FFFFh if installed, unchanged
BX = version (v1.5+ only), BH = major, BL = minor (v1.5 = 0105h)
CX = resident segment (v3.1+)
Program: DimVGA is a public domain screen saver by Menno Pieters
SeeAlso: AX=AA02h,AX=AA03h,AX=AA06h,INT 11/AX=0225h/BX=6900h,INT 12"KEYBUI"
SeeAlso: INT 2D/AL=10h"Burnout Plus",INT 2F/AX=6400h,INT 2F/AH=93h
SeeAlso: INT 2F/AX=C000h"VGAsave",INT 2F/AX=C000h"AD-DOS",INT 2F/AX=C050h
SeeAlso: INT 2F/AX=E300h
Index: screen saver;DimVGA
--------V-14AA02-----------------------------
INT 14 - DimVGA v2.0+ - SET TIME-OUT (DIMMING/BLANKING) PERIOD
AX = AA02h
BX = number of clock ticks
Return: AX = FFFFh
Note: on screen modes with 256 or less colors DimVGA will dim the screen,
when more than 256 colors can be used DimVGA will blank the screen.
SeeAlso: AX=AA01h,AX=AA03h,AX=AA04h,AX=AA06h
Index: screen saver;DimVGA
--------V-14AA03-----------------------------
INT 14 - DimVGA v2.0+ - SET DIMMING FACTOR
AX = AA03h
BX = percentage remaining visible (1-99)
Return: AX = FFFFh
SeeAlso: AX=AA02h,AX=AA05h,AX=AA06h
Index: screen saver;DimVGA
--------V-14AA04-----------------------------
INT 14 - DimVGA v2.0+ - GET TIME-OUT PERIOD
AX = AA04h
Return: AX = FFFFh
BX = current time-out in clock ticks
SeeAlso: AX=AA02h,AX=AA05h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA05-----------------------------
INT 14 - DimVGA v2.0+ - GET DIMMING FACTOR
AX = AA05h
Return: AX = FFFFh
BX = current dimming factor
SeeAlso: AX=AA03h,AX=AA04h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA06-----------------------------
INT 14 - DimVGA v2.0+ - DISABLE
AX = AA06h
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA07h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA07-----------------------------
INT 14 - DimVGA v2.0+ - ENABLE
AX = AA07h
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA06h,AX=AA0Ah
Index: screen saver;DimVGA
--------V-14AA08-----------------------------
INT 14 - DimVGA v2.0+ - DIM SCREEN 'MANUALLY'
AX = AA08h
Return: AX = FFFFh
Note: this function will dim the screen immediately, even if DimVGA is
currently disabled
SeeAlso: AX=AA01h,AX=AA02h,AX=AA09h
Index: screen saver;DimVGA
--------V-14AA09-----------------------------
INT 14 - DimVGA v2.0+ - UNDIM SCREEN 'MANUALLY'
AX = AA09h
Return: AX = FFFFh
Note: this function will undim the screen immediately, even if DimVGA is
currently disabled
SeeAlso: AX=AA01h,AX=AA08h
Index: screen saver;DimVGA
--------V-14AA0A-----------------------------
INT 14 - DimVGA v2.0+ - CHECK WHETHER ENABLED
AX = AA0Ah
Return: AX = FFFFh
BX = current state (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA06h,AX=AA07h
Index: screen saver;DimVGA
--------V-14AA0B-----------------------------
INT 14 - DimVGA v2.1+ - SET HOTKEY
AX = AA0Bh
BH = shift state (see #0315)
BL = keyboard scancode
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA0Ch
Index: screen saver;DimVGA
Bitfields for DimVGA hotkey shift state:
Bit(s) Description (Table 0315)
7-4 unused
3 Alt key pressed
2 Ctrl key pressed
1 Left shift key pressed
0 Right shift key pressed
--------V-14AA0C-----------------------------
INT 14 - DimVGA v2.1+ - GET HOTKEY
AX = AA0Ch
Return: AX = FFFFh
BH = shift state (see #0315)
BL = keyboard scancode
SeeAlso: AX=AA01h,AX=AA0Bh
Index: screen saver;DimVGA
--------V-14AA0D-----------------------------
INT 14 - DimVGA v3.0+ - SET MOUSE CHECK STATUS
AX = AA0Dh
BX = new mouse check status
0000h mouse checking off
0001h mouse checking on
Return: AX = FFFFh
Note: before switching mouse checking on, a mouse driver should be
found in memory. If no mouse driver is found, mouse checking
should be switched off (resident DimVGA does not check by itself).
SeeAlso: AX=AA01h,AX=AA0Eh
Index: screen saver;DimVGA
--------V-14AA0E-----------------------------
INT 14 - DimVGA v3.0+ - GET MOUSE CHECK STATUS
AX = AA0Eh
Return: BX = mouse check status (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA0Dh
Index: screen saver;DimVGA
--------V-14AA0F-----------------------------
INT 14 - DimVGA v3.4 - SET LOCKING STATUS
AX = AA0Fh
BX = locking status
0000h disabled
0001h enabled
Return: AX = FFFFh
SeeAlso: AX=AA01h,AX=AA0Dh,AX=AA10h
Index: screen saver;DimVGA
--------V-14AA10-----------------------------
INT 14 - DimVGA v3.4 - GET MOUSE CHECK STATUS
AX = AA10h
Return: BX = locking status (0000h disabled, 0001h enabled)
SeeAlso: AX=AA01h,AX=AA0Dh,AX=AA0Fh
Index: screen saver;DimVGA
----------14AD-------------------------------
INT 14 - IBM SurePath BIOS - Officially "Private" Function
AH = ADh
SeeAlso: AH=AEh"IBM",AH=AFh"IBM"
----------14AE-------------------------------
INT 14 - IBM SurePath BIOS - Officially "Private" Function
AH = AEh
SeeAlso: AH=ADh"IBM",AH=AFh"IBM"
----------14AF-------------------------------
INT 14 - IBM SurePath BIOS - Officially "Private" Function
AH = AFh
SeeAlso: AH=ADh"IBM",AH=AEh"IBM"
--------S-14AF00BXAAAA-----------------------
INT 14 - 3com BAPI SERIAL I/O - INSTALLATION CHECK
AX = AF00h
BX = AAAAh
Return: AX = AF01h if installed
BH = protocol type (if BX=AAAAh on entry)
01h NetManage TCP/IP
BL = version for protocol type (if BX=AAAAh on entry)
Note: early versions of the BAPI and the ROM BIOS simply destroy AX; this
behavior is used to determine whether the newer functions (AH=B0h,
AH=B1h,etc) are available
SeeAlso: AH=A0h"BAPI"
--------S-14B0-------------------------------
INT 14 - 3com BAPI SERIAL I/O - EN/DISABLE "ENTER COMMAND MODE" (ECM) CHARACTER
AH = B0h
AL = new state (00h disabled, 01h enabled)
Return: AH = return code (00h,07h,0Ah) (see #0313)
Note: disabling the ECM character allows applications to send data which
includes the ECM character
SeeAlso: AX=AF00h"BAPI",AH=B1h,AH=B2h
--------S-14B1-------------------------------
INT 14 - 3com BAPI SERIAL I/O - ENTER COMMAND MODE
AH = B1h
Return: AH = return code (00h,07h,0Ah) (see #0313)
Desc: provide a means for the application or terminal emulator to perform
the same action normally caused by the ECM character
SeeAlso: AH=B0h,AH=B2h
--------S-14B2-------------------------------
INT 14 - 3com BAPI SERIAL I/O - GET ECM WATCH STATE
AH = B2h
Return: AH = return code (00h,07h,0Ah) (see #0313)
AL = watch flag (00h disabled, 01h enabled)
Desc: determine whether the ECM character is enabled
SeeAlso: AH=B0h,AH=B1h
--------S-14B3-------------------------------
INT 14 - 3com BAPI SERIAL I/O - GET/SET CONFIGURATION INFO
AH = B3h
AL = direction (00h get, 01h set)
DH = session ID (00h for external session managment)
DL = configuration item (00h = end-of-line mapping)
CX = new configuration item value (if AL=01h)
---if DL=00h---
CH = application EOL type (app to Telnet client)
01h application will send lone CR
02h application will send CR-? pair
CL = driver EOL type (Telnet client to Telnet server)
01h driver should send CR-NUL pair
02h driver should send CR-LF pair
Return: AH = return code (00h,03h,09h-0Bh) (see #0313)
---if AL=00h---
CX = configuration item value (above)
SeeAlso: AH=B2h
--------N-14E0-------------------------------
INT 14 - TelAPI - "telopen" - CREATE TELNET CONNECTION (BLOCKING)
AH = E0h
BX = port number to connect with (default 0017h used if <= 0)
CX:DX = Internet address of remote host
DS:DI -> 2-byte remote host (session) identifier
ES:SI -> 1700-byte buffer for Telnet state record
0000h:0000h to use TelAPI internally-allocated space
Return: AX = status (0000h-0009h,FED3h,FF37h,FFBDh,FFC0h,FFCDh) (see #0316)
ES:SI buffer filled with state record
ES:SI -> internally-allocated state record in some versions
Note: the remote host identifier may be used to refer to this connection
SeeAlso: AH=E1h,AH=ECh,AX=FF00h
(Table 0316)
Values for TelAPI status:
0000h-7FFFh successful (session number)
FED3h (-301) no session allocated, or out of TelAPI data space
FF37h (-201) all sessions in use
FFBDh (-67) unknown hostname
FFC0h (-64) host not functioning
FFC3h (-61) connection attempt refused
FFC4h (-60) connection attempt timed out
FFC8h (-56) socket already connected
FFCDh (-51) network is unreachable
FFDDh (-35) operation would block
--------S-14E000-----------------------------
INT 14 - MX5 Extended FOSSIL - GET MNP STATUS BLOCK
AX = E000h
DX = port number (0-3)
Return: ES:BX -> status block (see #0317)
Program: MX5 is a FOSSIL driver by MagicSoft which emulates MNP Level 5, and
ships with the MTEZ terminal program as MTEMNP.DRV (a TSR despite
the .DRV extension)
SeeAlso: AX=E006h
Format of MX5 Extended FOSSIL status block:
Offset Size Description (Table 0317)
00h BYTE flag: active (00h no, 01h yes)
01h BYTE MNP level (2,4,5)
02h BYTE series ID from remote MNP
03h DWORD total packets transmitted
07h DWORD duplicate packets transmitted
0Bh DWORD maximum speed
0Fh DWORD total packets received
13h DWORD duplicate packets received
17h DWORD maximum speed
--------S-14E001-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP LEVEL
AX = E001h
BH = function
00h get MNP level
01h set MNP level
BL = new level (00h none, 02h/04h/05h MNP level N)
DX = port number (0-3)
Return: BL = MNP level
SeeAlso: AX=E002h,AX=E003h,AX=E004h,AX=E006h
--------S-14E002-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP ANSWER/ORIGINATE MODE
AX = E002h
BH = function
00h get answer/originate mode
01h set mode
BL = new mode (00h originate [default], 01h answer)
DX = port number (0-3)
Return: BL = answer/originate mode
SeeAlso: AX=E001h,AX=E003h,AX=E006h
--------S-14E003-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP WAIT TICKS
AX = E003h
BH = function
00h get wait ticks
01h set wait ticks
BL = MNP wait ticks (default 0Eh)
DX = port number (0-3)
Return: BL = wait ticks
SeeAlso: AX=E001h,AX=E002h,AX=E006h
--------S-14E004-----------------------------
INT 14 - MX5 Extended FOSSIL - GET/SET MNP CONNECT SOUND LEVEL
AX = E004h
BH = function
00h get sound level
01h set sound level
BL = new sound level (00h off, 01h on [default])
DX = port number
Return: BL = sound state
Desc: specify whether MX5 should generate beeps after an MNP connection
(three high beeps if successful, high then low on connection failure)
SeeAlso: AX=E002h,AX=E006h
--------S-14E005-----------------------------
INT 14 - MX5 Extended FOSSIL - UNINSTALL
AX = E005h
Return: BX = segment of MX5's memory block or 0000h on failure
Note: caller must free the returned memory block to complete the uninstall
SeeAlso: AX=E006h
--------S-14E006BX0000-----------------------
INT 14 - MX5 Extended FOSSIL - INSTALLATION CHECK
AX = E006h
BX = 0000h
Return: BX = 4D58h ('MX') if installed
AH = major version
AL = minor version
SeeAlso: AX=E000h,AX=E001h,AX=E005h,AX=E007h
--------S-14E007-----------------------------
INT 14 - MX5 Extended FOSSIL - WAIT SPECIFIED NUMBER OF TICKS
AX = E007h
CX = number of ticks to wait
Return: nothing
SeeAlso: AX=E006h
--------N-14E1-------------------------------
INT 14 - TelAPI - "telclose" - TERMINATE TELNET CONNECTION
AH = E1h
BX = connection ID
Return: AX = status (0000h,FFF7h,maybe others) (see #0316)
Note: flushes and releases all buffers and data space used by the connection
SeeAlso: AH=E0h,AH=E6h,AX=FF00h
--------N-14E2-------------------------------
INT 14 - TelAPI - "telread" - BUFFERED READ
AH = E2h
BX = connection ID (see AH=E0h"TelAPI")
CX = length of buffer in bytes
ES:SI -> buffer for data
Return: AX > 0000h number of characters actually read
AX = 0000h host has closed connection
AX < 0000h error code (see #0316)
Note: translates CRLF into local EOL if the connection is in ASCII mode,
negotiates various Telnet options, and immediately executes several
different Telnet action commands
SeeAlso: AH=07h"TelAPI",AH=E3h,AH=E6h,AX=FF00h,INT 6B/AH=01h
--------N-14E3-------------------------------
INT 14 - TelAPI - "telwrite" - BUFFERED WRITE
AH = E3h
BX = connection ID
CX = length of buffer in bytes
ES:SI -> buffer containing data
Return: AX > 0000h number of characters actually written
AX < 0000h error code (see #0316)
Note: translates local EOL into CRLF if the connection is in ASCII mode,
sends the appropriate Telnet commands for the characters selected
for IP, AYT, AO, EC, EL, and Break
SeeAlso: AH=06h"TelAPI",AH=E2h,AH=E6h,AX=FF00h,INT 6B/AH=00h
--------N-14E4-------------------------------
INT 14 - TelAPI - "telioctl" - CONNECTION CONTROL
AH = E4h
BX = connection ID (see AH=E0h"TelAPI")
CX = Telnet command/option identifier (see #0319)
ES:SI -> buffer containing command/option argument (see #0318)
Return: AX = status (0000h, etc.) (see #0316)
Desc: start filter control, initiate Telnet option negotiation, or get filter
control status
SeeAlso: AH=A9h,AH=E6h,AX=FF00h,INT 6B/AX=0600h
Format of TelAPI Telnet command/option argument:
Offset Size Description (Table 0318)
00h 5 WORD numeric arguments
0Ah DWORD -> ASCIZ string
SeeAlso: #0319
(Table 0319)
Values for TelAPI Telnet command/option identifier:
01h ASCII args: none
02h BINARY args: none
03h LOCALECHO args: none client echos data
04h REMOTEECHO args: none server echos data
05h SGA args: none Suppress Go-Ahead signal
07h CHARMODE args: none no line-buffering
08h LINEMODE args: -> erase-line ch perform line-buffering
09h RECVEOL args: EOL type
0Ah SENDEOL args: EOL type
0Bh EOR args: none enable end-of-record sequence
0Dh BREAK args: -> break char
0Eh VERBOSE args: verbosity display Telnet negotiations?
0Fh AYT args: -> AYT escape ch
10h AO args: -> AO escape char
11h IP args: -> IP escape char
12h EC args: -> escape char
13h EL args: -> escape char
14h STATUS args: type; returns data in structure
18h TERMTYPE args: -> terminal type
19h ATTACHPORT args: port number ; returns session number
1Bh TRANSMIT_EOR args: EOR enabled append EOR to every telwrite?
SeeAlso: #0318
--------N-14E5-------------------------------
INT 14 - TelAPI - "telreset" - RESET ALL CONNECTIONS
AH = E5h
Return: AX = status (0000h,other) (see also #0316)
FFFFh unable to reset
Desc: close all sessions and reset TelAPI to defaults
SeeAlso: AH=E1h,AH=E6h,AX=FF00h
--------N-14E6-------------------------------
INT 14 - TelAPI - "telunload" - UNINSTALL
AH = E6h
Return: AX = status
0000h successful
FFFFh unable to uninstall
Notes: TelAPI also supports the NASI/NACS and NCSI APIs on INT 6B
this function invokes AH=E5h internally
SeeAlso: AH=E5h,AX=FF00h,INT 6B/AH=00h,INT 6B/AH=10h
--------N-14E7-------------------------------
INT 14 - TelAPI - "tellist" - GET TELNET SESSION LIST
AH = E7h
ES:SI -> 10-word buffer for session list
Return: AX = 0000h (successful)
ES:SI buffer filled
Desc: determine, for each of the ten allowable sessions, whether the session
is currently available
Note: each word in the buffer is filled with either 0000h to indicate that
the corresponding sesion is unavailable, or 0001h if available
SeeAlso: AH=E0h,AH=E5h,AX=FF00h
--------N-14E8-------------------------------
INT 14 - TelAPI - "telattach" - ATTACH COM PORT TO/FROM TELNET SESSION
AH = E8h
BX = connection ID (see AH=E0h"TelAPI")
CX = serial port number (0000h-0003h = COM1-COM4)
Return: AX = status
0000h successful
FFFFh failed
SeeAlso: AH=E0h,AH=E9h,AX=FF00h
--------N-14E9-------------------------------
INT 14 - TelAPI - "telportosn" - GET SESSION NUMBER FOR COM PORT
AH = E9h
DX = serial port number (0000h-0003h = COM1-COM4)
Return: AX >= 0000h session number
AX < 0000h error code (see #0316)
SeeAlso: AH=E0h,AH=E8h,AH=EAh,AX=FF00h
--------N-14EA-------------------------------
INT 14 - TelAPI - "telstatus" - GET TELNET CONNECTION STATUS INFORMATION
AH = EAh
BX = connection ID (see AH=E0h"TelAPI")
ES:SI -> buffer for status info (see #0320)
Return: AX = status (0000h,FFFFh,etc.)
SeeAlso: AH=E9h,AH=EBh,AX=FF00h
Format of TelAPI Telnet connection status information:
Offset Size Description (Table 0320)
00h 4 BYTEs remote host IP address
04h 20 BYTEs reserved
18h WORD local port number
1Ah BYTE connection mode (00h = ASCII, 01h = Binary)
1Bh BYTE echo flag (00h local, 01h remote)
1Ch BYTE SGA flag (00h will, 01h won't)
1Dh BYTE EOR negotation flag (00h do negotiate, 01h don't)
1Eh BYTE buffering (00h line mode, 01h character mode)
1Fh BYTE reserved
20h BYTE verbose flag (00h no, 01h verbose mode)
21h BYTE received EOL (00h no xlat, 01h CR, 02h LF, 03h CRLF)
22h BYTE sent EOL (00h no translation, 01h CR, 02h LF)
23h BYTE break character
24h BYTE IP escape character
25h BYTE AO escape character
26h BYTE AYT escape character
27h BYTE EC escape character
28h BYTE EL escape character
29h 41 BYTEs ASCIZ Telnet-negotiated terminal type
52h 9 BYTEs session ID
SeeAlso: #0321
--------N-14EB-------------------------------
INT 14 - TelAPI - "telname" - GET AVAILABLE/INUSE STATUS FOR ALL SESSIONS
AH = EBh
ES:SI -> buffer for session statuses (see #0321)
Return: ES:SI buffer filled
SeeAlso: AH=E9h,AH=EAh,AX=FF00h
Format of TelAPI session status information [array]:
Offset Size Description (Table 0321)
00h BYTE session state (00h available, 01h connected)
01h 9 BYTEs session ID if connected
0Ah WORD attached COM port if connected, FFFFh if not
SeeAlso: #0320
--------N-14EC-------------------------------
INT 14 - TelAPI - "telnblkopen" - CREATE TELNET CONNECTION (NON-BLOCKING)
AH = ECh
BX = port number to connect with (default 0017h used if <= 0)
CX:DX = Internet address of remote host
DS:DI -> 2-byte remote host (connection) identifier
ES:SI -> 1700-byte buffer for Telnet state record
0000h:0000h to use TelAPI internally-allocated space
Return: AX = status (0000h-0009h,FED3h,FF37h,FFBDh,FFC0h,FFCDh) (see #0316)
ES:SI buffer filled with state record
ES:SI -> internally-allocated state record in some versions
Notes: the remote host identifier may be used to refer to this connection
this function returns immediately; use AH=EDh to check whether the
connection has been established yet
this function is not supported by the Microdyne TelAPI v3.7
SeeAlso: AH=E0h"TelAPI",AH=EDh,AX=FF00h
--------N-14ED-------------------------------
INT 14 - TelAPI - "telpoll" - POLL TELNET SESSION FOR CONNECTION COMPLETION
AH = EDh
BX = connection ID (see AH=ECh)
Return: AX = status (0000h,0001h,FFFFh,etc.) (see also #0316)
0000h session now connected
0001h connection still in progress
Note: this function is not supported by the Microdyne TelAPI v3.7
SeeAlso: AH=EDh,AX=FF00h
--------a-14F0F0-----------------------------
INT 14 - ASAP v1.0 - ???
AX = F0F0h
DX = ???
???
Return: ???
Program: ASAP (Automatic Screen Access Program) is a shareware screen reader
by MicroTalk
SeeAlso: AX=F0F1h
--------a-14F0F1DX0000-----------------------
INT 14 - ASAP v1.0 - INSTALLATION CHECK
AX = F0F1h
DX = 0000h
Return: DX = segment of resident code
0000h if not installed
Program: ASAP (Automatic Screen Access Program) is a shareware screen reader
by MicroTalk
SeeAlso: AX=F0F0h,INT 10/AX=3800h
--------S-14F4FF-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - INSTALLATION CHECK
AX = F4FFh
DX = port (00h-03h)
Return: CF clear if present
AX = 0000h
CF set if not present
AX <> 0000h
SeeAlso: AH=36h"ComShare",AH=F9h,AH=FCh
--------S-14F9-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - REGAIN CONTROL
AH = F9h
DX = port (00h-03h)
Return: nothing
SeeAlso: AX=F4FFh
--------S-14FA-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SEND BREAK
AH = FAh
DX = port (00h-03h)
Return: nothing
SeeAlso: AH=07h"MBBIOS",AH=1Ah,AH=8Ah
--------S-14FB-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET OUTGOING MODEM SIGNALS
AH = FBh
AL = modem control register (see #0253 at AH=05h"SERIAL")
DX = port (00h-03h)
Return: nothing
SeeAlso: AH=05h"SERIAL"
--------S-14FC-------------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - READ CHARACTER, NO WAIT
AH = FCh
DX = port (00h-03h)
Return: AH = RS232 status bits (see #0223 at AH=03h)
AL = character
SeeAlso: AH=02h,AH=0Ch,AX=FF02h
--------S-14FD02-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - READ STATUS
AX = FD02h
Return: CX = number of characters available
--------N-14FF00-----------------------------
INT 14 - TelAPI - "telcheck" - INSTALLATION CHECK
AX = FF00h
Return: AX = 00FFh if installed
BX = version number * 100 (decimal)
SeeAlso: AH=E6h,AX=F4FFh
--------S-14FF01-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET SEND BUFFER
AX = FF01h
CX = length of buffer (0000h to cancel buffer assignment)
DX = port (00h-03h)
ES:BX -> send buffer
Return: nothing
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A5h"BAPI",AH=FCh,AX=FF02h
--------S-14FF02-----------------------------
INT 14 - IBM/Yale EBIOS SERIAL I/O - SET RECEIVE BUFFER
AX = FF02h
CX = length of buffer (0000h to cancel buffer assignment)
DX = port (00h-03h)
ES:BX -> receive buffer
Return: nothing
SeeAlso: AH=18h,AH=83h"COURIERS",AH=A5h"BAPI",AH=FCh,AX=FF01h
--------S-14FFF8-----------------------------
INT 14 - COMM-DRV v14.0 - SET BAUD RATE DIVISOR
AX = FFF8h
BX = card type (sub-device number)
CX = new baudrate divisor
DX = index to baud rate
Return: AH bit 7 set on error
AH bit 7 clear if successful
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
SeeAlso: AX=8000h"COMM-DRV"
--------S-14FFFB-----------------------------
INT 14 - COMM-DRV v14.0 - GET HIGHEST ALLOWED PORT NUMBER
AX = FFFBh
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
BX = highest port number
--------S-14FFFC-----------------------------
INT 14 - COMM-DRV v14.0 - GET INT 14 FLAGS
AX = FFFCh
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
BX = flags (see #0322)
SeeAlso: AX=FFFDh
Bitfields for INT 14h flags:
Bit(s) Description (Table 0322)
0 port active for INT 14h
1 interface behaving like a FOSSIL driver
--------S-14FFFD-----------------------------
INT 14 - COMM-DRV v14.0 - SET INT 14 FLAGS
AX = FFFDh
BX = flags (see #0322)
DX = port number
Return: AH bit 7 set on error
AH bit 7 clear if successful
SeeAlso: AX=FFFCh
--------S-14FFFE-----------------------------
INT 14 - COMM-DRV v14.0 - RESTORE INT 14 VECTOR TO ORIGINAL
AX = FFFEh
Return: AH bit 7 set on error
AH bit 7 clear if successful
--------S-14FFFF-----------------------------
INT 14 - COMM-DRV v14.0 - GET INT 14 INFORMATION AREA
AX = FFFFh
BX:SI -> DWORD buffer for address of information area (see #0323)
(initialized to zeros)
Return: BX:SI buffer filled with nonzero value if installed
Program: COMM-DRV is a universal serial communications driver by Willies'
Computer Software Company, which supports standard INT 14 and
FOSSIL calls as well as its own interfaces
Index: installation check;COMM-DRV
Format of COMM-DRV information area:
Offset Size Description (Table 0323)
00h 8 BYTEs signature "COMM-DRV"
08h 2 BYTEs 00h,00h
0Ah DWORD -> direct address mapping table
0Eh DWORD previous INT 14 vector
--------t-15---------------------------------
INT 15 - Microsoft TSR Specification
No additional information available at this time.
--------B-1500-------------------------------
INT 15 - CASSETTE - TURN ON TAPE DRIVE'S MOTOR (PC and PCjr only)
AH = 00h
Return: CF set on error
AH = 86h no cassette present
CF clear if successful
SeeAlso: AH=01h"CASSETTE"
--------M-1500-------------------------------
INT 15 - Amstrad PC1512 - GET AND RESET MOUSE COUNTS
AH = 00h
Return: CX = signed X count
DX = signed Y count
--------O-1500-------------------------------
INT 15 - VMiX v2+ - INSTALLATION CHECK
AH = 00h
Return: DX = 0798h if installed
AX = version (AH = major, AL = minor)
--------T-1500-------------------------------
INT 15 - MultiDOS Plus - GIVE UP TIME SLICE
AH = 00h
Return: nothing
Note: if issued by the highest-priority task while MultiDOS is using
priority-based rather than round-robin scheduling, control will be
returned to the caller immediately
SeeAlso: AH=03h"MultiDOS",AX=1000h
--------B-1501-------------------------------
INT 15 - CASSETTE - TURN OFF TAPE DRIVE'S MOTOR (PC and PCjr only)
AH = 01h
Return: CF set on error
AH = 86h no cassette present
CF clear if successful
SeeAlso: AH=00h"CASSETTE"
--------b-1501-------------------------------
INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM
AH = 01h
AL = NVRAM location (00h to 3Fh) (see #0324)
BL = NVRAM data value
Return: AH = return code
00h OK
01h address bad
02h write error
SeeAlso: AH=02h"Amstrad"
Format of Amstrad NVRAM:
Offset Size Description (Table 0324)
00h BYTE time of day: seconds
01h BYTE alarm time: seconds
02h BYTE time of day: minutes
03h BYTE alarm time: minutes
04h BYTE time of day: hours
05h BYTE alarm time: hours
06h BYTE day of week, 1 = Sunday
07h BYTE day of month
08h BYTE month
09h BYTE year mod 100
0Ah BYTE RTC status register A (see #0325)
0Bh BYTE RTC status register B (see #0326)
0Ch BYTE RTC status register C (read-only) (see #0327)
0Dh BYTE RTC status register D
bit 7: battery good
0Eh 6 BYTEs time and date machine last used
14h BYTE user RAM checksum
15h WORD Enter key scancode/ASCII code
17h WORD Forward delete key scancode/ASCII code
19h WORD Joystick fire button 1 scancode/ASCII code
1Bh WORD Joystick fire button 2 scancode/ASCII code
1Dh WORD mouse button 1 scancode/ASCII code
1Fh WORD mouse button 2 scancode/ASCII code
21h BYTE mouse X scaling factor
22h BYTE mouse Y scaling factor
23h BYTE initial VDU mode and drive count
24h BYTE initial VDU character attribute
25h BYTE size of RAM disk in 2K blocks
26h BYTE initial system UART setup byte
27h BYTE initial external UART setup byte
28h 24 BYTEs available for user application
Note: bytes 00h-0Dh are the same on the IBM AT as they are used/updated by
the clock chip
Bitfields for RTC status register A:
Bit(s) Description (Table 0325)
7 set if date/time being updated
6-4 time base speed, default 010 = 32768 Hz
3-0 interrupt rate selection, default 0110 = 1024 Hz
SeeAlso: #0324
Bitfields for RTC status register B:
Bit(s) Description (Table 0326)
7 clear if normal update, set if abort update
6 periodic interrupt enable
5 alarm interrupt enable
4 update end interrupt enable
3 square wave enable
2 date mode (clear = BCD, set = binary)
1 24-hour format
0 daylight saving time enable
SeeAlso: #0324
Bitfields for RTC status register C:
Bit(s) Description (Table 0327)
7 IRQF flag
6 PF flag
5 AF flag
4 UF flag
SeeAlso: #0324
--------O-1501-------------------------------
INT 15 - VMiX - "sys_chanreq" - I/O CHANNEL OBJECT MANAGER
AH = 01h
STACK: WORD object ID of requestor
DWORD pointer to ASCIZ name of requested method
"assign" assign channel to object
"deassign" deassign channel
"cursor" set cursor on/off
"init" initialize comm port
"open" open I/O channel
"position" set cursor position
"receive" get buffered packet from comm port
"send" send buffered packet to comm port
"vio" set current virtual I/O to specified channel
"window" make window at cursor position
---if "assign"---
WORD object UID
WORD caller UID/PID
DWORD CSL with port
---if "deassign"---
WORD channel ID
---if "cursor"---
WORD channel ID (must be a SRCSINK)
WORD new state (0000h off, 0001h on)
---if "init"---
WORD channel ID (must be a SRCSINK)
WORD comm port number (00h-03h)
WORD UART init code
---if "open"---
WORD channel ID
---if "position"---
WORD channel ID (must be a SRCSINK)
WORD position (high byte = row, low byte = column)
---if "receive"---
DWORD pointer to buffer
---if "send"---
WORD length of buffer
DWORD pointer to buffer
---if "vio"---
WORD channel ID (must be a SRCSINK)
---if "window"---
WORD top left (high byte = row, low byte = column)
WORD bottom right (high byte = row, low byte = column)
Return: DX:AX -> IRP structure or 0000h:0000h
SeeAlso: AH=00h"VMiX",AH=02h"VMiX"
--------T-1501-------------------------------
INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE
AH = 01h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h successful
02h invalid semaphore number
Notes: if the semaphore is not owned, ownership is assigned to the calling
task and the call returns immediately
if the semaphore is already owned by another task, the calling task
is placed on a queue for the semaphore and suspended until it can
become owner of the semaphore
semaphore 0 is used internally by MultiDOS to synchronize DOS access
SeeAlso: AH=02h"MultiDOS",AH=10h"MultiDOS",AH=1Bh"MultiDOS"
--------B-1502-------------------------------
INT 15 - CASSETTE - READ DATA (PC and PCjr only)
AH = 02h
CX = number of bytes to read
ES:BX -> buffer
Return: CF clear if successful
DX = number of bytes read
ES:BX -> byte following last byte read
CF set on error
AH = status (see #0328)
SeeAlso: AH=00h"CASSETTE",AH=03h"CASSETTE"
(Table 0328)
Values for Cassette status:
00h successful
01h CRC error
02h bad tape signals
04h no data
80h invalid command
86h no cassette present
--------b-1502-------------------------------
INT 15 - Amstrad PC1512 - READ DATA FROM NON-VOLATILE RAM
AH = 02h
AL = NVRAM location (00h to 3Fh)
Return: AH = return code
00h OK
01h address bad
02h checksum error
AL = NVRAM data value
SeeAlso: AH=01h"Amstrad"
--------O-1502-------------------------------
INT 15 - VMiX - "sys_memreq" - MEMORY OBJECT MANAGER
AH = 02h
STACK: WORD object ID of requestor
DWORD pointer to ASCIZ name of requested method
"assign" allocate low memory block
"assign extended" allocate extended memory pages
"assign gdt" allocate GDT selector
"paged" allocate low paged memory
"paged extended" alllocate extended memory pages
"deassign" free memory block
"deassign gdt" free GDT selector
"getvpage" get physical address for virtual page
"setvpage" set physical address for virtual page
"info" get VMiX memory usage info block
"move" move contents of 32-bit memory
"newmcb" make new DOS memory control block
"owner" get process ID of MCB or PSP owner
"umb" allocate upper memory block
"video" toggle system use of video memory and get stat
---if "assign"---
WORD number of objects
WORD size in bytes (multiple of 512 bytes)
---if "assign extended"---
WORD number of objects
WORD size in bytes (multiple of 4K)
---if "assign gdt"---
WORD access type (low byte)
WORD segment size in paragraphs
DWORD pointer to start of physical segment
---if "paged"---
WORD number of 512-byte pages
---if "paged extended"
WORD number of 4K pages
---if "deassign"---
DWORD pointer returned by previous allocation call
---if "deassign gdt"---
WORD GDT selector
---if "getvpage"---
WORD owner's process ID
DWORD pointer to buffer for page structure (struct VPGE)
---if "setvpage"---
WORD owner's process ID
DWORD pointer to new page structure (struct VPGE)
---if "info"---
no additional arguments
---if "move"
DWORD 32-bit source address
DWORD 32-bit destination address
WORD number of words to move
---if "newmcb"---
DWORD pointer to new MCB's location
WORD size of memory block
DWORD pointer to ASCIZ name string (max 8 chars)
---if "owner"---
WORD MCB or PSP segment
---if "umb"---
WORD size in paragraphs
---if "video"---
no additional arguments
Return: DX:AX -> memory block or VPGE struct or 0000h:0000h
SeeAlso: AH=00h"VMiX",AH=01h"VMiX"
--------T-1502-------------------------------
INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE
AH = 02h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h successful
01h not semaphore owner
02h invalid semaphore number
Notes: if any tasks are waiting for the semaphore, the first task on the wait
queue will become the new owner and be reawakened
do not use within an interrupt handler
SeeAlso: AH=01h"MultiDOS",AH=10h"MultiDOS",AH=1Ch"MultiDOS"
--------B-1503-------------------------------
INT 15 - CASSETTE - WRITE DATA (PC and PCjr only)
AH = 03h
CX = number of bytes to write
ES:BX -> data buffer
Return: CF clear if successful
ES:BX -> byte following last byte written
CF set on error
AH = status (see #0328)
CX = 0000h
SeeAlso: AH=00h"CASSETTE",AH=02h"CASSETTE"
--------V-1503-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE WRITE REGISTER
AH = 03h
AL = value (I,R,G,B bits)
Return: nothing
SeeAlso: AH=04h"Amstrad"
--------O-1503-------------------------------
INT 15 - VMiX - "sys_pinput" - PROMPTED CONSOLE INPUT
AH = 03h
STACK: DWORD pointer to ASCII prompt
WORD field outline character
WORD length of input field (max 7Fh)
DWORD address of pointer to input buffer
Return: AX = length of input (input buffer is padded with blanks)
SeeAlso: AH=04h"VMiX"
--------T-1503-------------------------------
INT 15 - MultiDOS Plus - SUSPEND TASK FOR INTERVAL
AH = 03h
DX = number of time slices to remain suspended
Return: after specified interval has elapsed
Note: when priority-based scheduling is in use, high-priority tasks should
use this function to yield the processor
SeeAlso: AH=00h"MultiDOS",AH=0Ah"MultiDOS"
--------B-1504-------------------------------
INT 15 - SYSTEM - BUILD ABIOS SYSTEM PARAMETER TABLE (PS)
AH = 04h
ES:DI -> 32-byte results buffer for System Parameter Table (see #0329)
DS = segment containing ABIOS RAM extensions (zero if none)
Return: CF clear if successful
AH = 00h success
ES:DI buffer filled
AL destroyed
CF set on failure
AX destroyed
AH = 80h/86h if not supported
SeeAlso: AH=05h"ABIOS",AH=C1h
Format of ABIOS System Parameter Table:
Offset Size Description (Table 0329)
00h DWORD FAR address of ABIOS Common Start Routine
04h DWORD FAR address of ABIOS Interrupt Routine
08h DWORD FAR address of ABIOS Time-out Routine
0Ch WORD number of bytes of stack required by this ABIOS implementation
0Eh 16 BYTEs reserved
1Eh WORD number of entries in initialization table
--------V-1504-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE READ REGISTER
AH = 04h
AL = value (RDSEL1 and RDSEL0)
Return: nothing
SeeAlso: AH=03h"Amstrad",AH=05h"Amstrad"
--------O-1504-------------------------------
INT 15 - VMiX - "sys_vprintf" - FORMATTED OUTPUT TO STREAM
AH = 04h
STACK: DWORD control string
DWORD array of arguments
Return: nothing
SeeAlso: AH=03h"VMiX"
--------T-1504-------------------------------
INT 15 - MultiDOS Plus - SEND MESSAGE TO ANOTHER TASK
AH = 04h
AL = mailbox number (00h-3Fh)
CX = message length in bytes
DS:SI -> message
Return: AH = status
00h successful
01h out of message memory
02h invalid mailbox number
Note: the message is copied into a system buffer; the caller may immediately
reuse its buffer
SeeAlso: AH=05h"MultiDOS"
--------B-1505-------------------------------
INT 15 - SYSTEM - BUILD ABIOS INITIALIZATION TABLE (PS)
AH = 05h
ES:DI -> results buffer of length 18h * Number_of_Entries (see #0330)
DS = segment containing ABIOS RAM extensions (zero if none)
Return: CF clear if successful
AH = 00h success
ES:DI buffer filled
AL destroyed
CF set on failure
AX destroyed
AH = 80h/86h if not supported
SeeAlso: AH=04h"ABIOS",AH=C1h
Format of one entry of ABIOS Initialization Table:
Offset Size Description (Table 0330)
00h WORD device ID (see #0331)
02h WORD number of Logical IDs
04h WORD Device Block length (zero for ABIOS patch or extension)
06h DWORD -> init routine for Device Block and Function Transfer Table
0Ah WORD request block length
0Ch WORD Function Transfer Table length (zero for a patch)
0Eh WORD Data Pointers length (in Common Data Area)
10h BYTE secondary device ID (hardware level this ABIOS ver supports)
11h BYTE revision (device driver revision level this ABIOS supports)
12h 6 BYTEs reserved
(Table 0331)
Values for ABIOS device ID:
00h ABIOS internal calls
01h floppy disk
02h hard disk
03h video
04h keyboard
05h parallel port
06h serial port
07h system timer
08h real-time clock
09h system services
0Ah NMI
0Bh mouse
0Eh CMOS RAM
0Fh DMA
10h Programmable Option Select (POS)
16h keyboard password
--------V-1505-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU GRAPHICS BORDER REGISTER
AH = 05h
AL = value (I,R,G,B bits)
Return: nothing
SeeAlso: AH=04h"Amstrad"
--------O-1505-------------------------------
INT 15 - VMiX - "sys_getpid" - GET PROCESS ID OF CURRENT PROCESS
AH = 05h
Return: AX = process ID
SeeAlso: AH=06h"VMiX",AH=0Bh"VMiX"
--------T-1505-------------------------------
INT 15 - MultiDOS Plus - CHECK MAILBOX
AH = 05h
AL = mailbox number (00h-3Fh)
Return: AH = status
00h successful
DX = length of first message in queue, 0000h if no message
02h invalid mailbox number
SeeAlso: AH=04h"MultiDOS",AH=06h"MultiDOS"
--------b-1506-------------------------------
INT 15 - Amstrad PC1512 - GET ROS VERSION NUMBER
AH = 06h
Return: BX = version number
--------O-1506-------------------------------
INT 15 - VMiX - "sys_getpcb" - GET POINTER TO PROCESS CONTROL BLOCK
AH = 06h
STACK: WORD process ID
Return: DX:AX -> process control block
SeeAlso: AH=05h"VMiX",AH=07h"VMiX",AH=08h"VMiX"
--------T-1506-------------------------------
INT 15 - MultiDOS Plus - READ MAILBOX
AH = 06h
AL = mailbox number (00h-3Fh)
CX = size of buffer in bytes
ES:DI -> buffer for message
Return: AH = status
00h successful
CX = number of bytes copied
DX = actual length of message
02h invalid mailbox number
Note: if the caller's buffer is not large enough, the message is truncated
and the remainder is lost
SeeAlso: AH=04h"MultiDOS",AH=05h"MultiDOS"
--------O-1507-------------------------------
INT 15 - VMiX - "sys_getocb" - GET POINTER TO OBJECT CONTROL BLOCK
AH = 07h
STACK: WORD object type
Return: DX:AX -> object control block
SeeAlso: AH=06h"VMiX",AH=08h"VMiX"
----------1507-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 07h
SeeAlso: AH=08h"IBM"
--------T-1507-------------------------------
INT 15 - MultiDOS Plus - SPAWN INTERNAL TASK (CREATE NEW THREAD)
AH = 07h
BX:CX = entry point of new task
DX = stack size in paragraphs
Return: AH = status
00h successful
01h no free task control blocks
02h no free memory for task's stack
Note: execution returns immediately to calling task
SeeAlso: AH=08h"MultiDOS",AH=09h"MultiDOS",AH=13h"MultiDOS"
--------O-1508-------------------------------
INT 15 - VMiX - "sys_getccb" - GET CHANNEL CONTROL BLOCK
AH = 08h
STACK: WORD channel ID
Return: DX:AX -> channel control block
SeeAlso: AH=06h"VMiX",AH=07h"VMiX"
--------B-1508-------------------------------
INT 15 - IBM SurePath BIOS - WAIT REQUESTED TIME PERIOD
AH = 08h
AL = function
00h wait in increments of 15.025 microseconds
CX = number of time increments to wait (0000h = maximum)
80h wait in increments of 840 ns
ECX = number of time increments to wait
81h I/O event wait
BH = bitmask of bits to check
BL = expected pattern
DX = I/O port address
ECX = number of 840 ns microticks to wait
Return: ECX = 00000000h if expected pattern did not occur
82h memory event wait
BH = bitmask of bits to check
BL = expected pattern
ES:SI -> BYTE to check
ECX = number of 840 ns microticks to wait
Return: ECX = 00000000h if expected pattern did not occur
other reserved
Return: CF clear if successful
CF set on error
AH = status
00h successful
01h used 15.025 microsecond interval, time rounded up
08h reserved subfunction
86h function not supported
Notes: IBM classifies this function as optional
if the POST determines that the timer is nonfunctional, this function
uses the 15.025 microsecond refresh timer instead of the
full-resolution timer
SeeAlso: AH=07h"IBM",AH=09h"IBM",AH=86h
--------T-1508-------------------------------
INT 15 - MultiDOS Plus - TERMINATE INTERNAL TASK (KILL THREAD)
AH = 08h
Return: calling task terminated, so execution never returns to caller
Notes: an internal task must be terminated with this function rather than a
DOS termination function
task's stack space is returned to parent task's memory pool
SeeAlso: AH=07h"MultiDOS"
--------O-1509-------------------------------
INT 15 - VMiX - "sys_getqueue" - GET ID OF QUEUED ELEMENT
AH = 09h
STACK: WORD queue ID (0 = process queue, 1 = object, 3 = type)
WORD subqueue ID
Return: AX = queue ID
SeeAlso: AH=0Ah"VMiX"
----------1509-------------------------------
INT 15 - IBM BIOS - RESERVED FOR PCMCIA SYSTEM RESOURCE TABLE ACCESS
AH = 09h
no further details available
SeeAlso: AH=08h"IBM"
--------T-1509-------------------------------
INT 15 - MultiDOS Plus - CHANGE TASK'S PRIORITY
AH = 09h
AL = new priority
Return: nothing
Note: the priority has different meanings depending on whether priority-
based or round-robin scheduling is used
SeeAlso: AH=07h"MultiDOS"
--------O-150A-------------------------------
INT 15 - VMiX - "sys_qetqnext" - GET ID OF NEXT QUEUED ELEMENT
AH = 0Ah
STACK: WORD queue ID (0 = process queue, 1 = object, 3 = type)
WORD ID of current element in queue chain
Return: AX = ID of next element
SeeAlso: AH=09h"VMiX",AH=0Fh"VMiX"
--------T-150A-------------------------------
INT 15 - MultiDOS Plus - CHANGE TIME SLICE INTERVAL
AH = 0Ah
AL = new interval
00h = 55.0 ms (default)
80h = 27.5 ms
40h = 13.75 ms
20h = 6.88 ms
10h = 3.44 ms
08h = 1.72 ms
SeeAlso: AH=03h"MultiDOS"
--------O-150B-------------------------------
INT 15 - VMiX - "sys_sysreq" - SYSTEM CONFIGURATION MANAGER
AH = 0Bh
STACK: WORD caller's UID
DWORD pointer to ASCIZ name of requested method
"abort" abort current send/receive on comm port
"block" start/end critical section
"close" terminate interrupt-drive comm I/O
"open" prepare comm port for interrupt-driven I/O
"delay" set delay timer and wait
"hibernate" put process to sleep
"ints" enable/disable interrupt-driven INT 14h
"length" get current send/receive buffer offsets
"kswitch" switch stacks
"numproc" get number of active processes
"protocol" set protocol function for comm interrupts
"relocate" set/reset VMiX flag for relocating to himem
"status" get current open comm port status
"wake" awaken a process
"xport" get comm port polled for logins
---if "abort"---
no additional arguments
---if "block"---
WORD 0000h end, 0001h start
---if "close"---
no additional arguments
---if "open"---
WORD comm port (00h-03h)
WORD BIOS parameter byte (see #0219 at INT 14/AH=00h),
except bits 7-5: 000 = 19200, 001 = 38400, 011 = 115200
---if "delay"---
WORD time in seconds
---if "hibernate"---
WORD process ID
---if "ints"---
WORD 0000h if no, 0001h if yes
---if "length","numproc","relocate","status","xport"---
no additional arguments
---if "kswitch"---
DWORD pointer to new stack
---if "protocol"---
DWORD pointer to function (must be in low "assign"ed memory
when in 386 mode)
---if "wake"---
WORD process ID
Return: DX:AX -> result or 0000h:0000h
---if "length"---
BYTE receive offset
BYTE send offset
---if "kswitch"---
DWORD old stack pointer
---if "numproc"---
WORD number of active processes
---if "status"---
current open comm port status
---if "xport"---
current comm port being polled for logins
Note: the "delay" command reportedly disables the keyboard until the delay
completes
SeeAlso: AH=05h"VMiX",AH=0Eh"VMiX"
--------T-150B-------------------------------
INT 15 - MultiDOS Plus - FORCE DISPLAY OUTPUT TO PHYSICAL SCREEN MEMORY
AH = 0Bh
Return: nothing
Notes: sets calling task's screen pointer to actual screen memory; the pointer
may be restored with AH=0Ch
caller's video mode must be same as foreground task's video mode
any text written while in the background will be saved to the
foreground task's virtual screen when it switches to the background
useful if a background task wants to display a message on the
foreground screen
SeeAlso: AH=0Ch"MultiDOS"
--------O-150C-------------------------------
INT 15 - VMiX - "sys_getstack" - GET POINTER TO PROCESS TSS STACK
AH = 0Ch
STACK: WORD process ID
Return: DX:AX -> TSS stack store
SeeAlso: AH=00h"VMiX"
--------T-150C-------------------------------
INT 15 - MultiDOS Plus - RESTORE OLD VIDEO DISPLAY MEMORY
AH = 0Ch
Return: nothing
Note: restores task's screen pointer saved by AH=0Bh; must not be called
unless AH=0Bh has been called first
SeeAlso: AH=0Bh"MultiDOS"
--------O-150D-------------------------------
INT 15 - VMiX - "sys_spawn" - START A CHILD PROCESS JOB SHELL
AH = 0Dh
STACK: DWORD ASCIZ string starting with requested I/O channel and
followed by standard VMiX shell command string
Return: AX = process ID or error code "SYS_ERROR"
Note: the maximum string length is 7Fh characters
SeeAlso: AH=0Eh"VMIX",AH=11h"VMiX",INT 21/AH=4Bh
--------T-150D-------------------------------
INT 15 - MultiDOS Plus - DISABLE MULTITASKING
AH = 0Dh
Return: nothing
Note: calling task receives all time slices until AH=0Eh is called; this
allows time-critical events or nonreentrant code to be processed
SeeAlso: AH=0Eh"MultiDOS",AH=10h"MultiDOS",AX=101Bh,AH=20h"MultiDOS"
--------O-150E-------------------------------
INT 15 - VMiX - "sys_kill" - HARD TERMINATE PROCESS
AH = 0Eh
STACK: WORD process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=0Bh"VMiX",AH=0Dh"VMIX"
--------T-150E-------------------------------
INT 15 - MultiDOS Plus - ENABLE MULTITASKING
AH = 0Eh
Return: nothing
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AH=20h"MultiDOS"
--------d-150F-------------------------------
INT 15 C - SYSTEM - FORMAT UNIT PERIODIC INTERRUPT (PS ESDI drives only)
AH = 0Fh
AL = phase code
00h reserved
01h surface analysis
02h formatting
Return: CF clear if formatting should continue
CF set if formatting should terminate
Note: called during ESDI drive formatting after each cylinder is completed
SeeAlso: INT 13/AH=1Ah
--------O-150F-------------------------------
INT 15 - VMiX - "sys_getqkey" - GET KEY FIELD OF QUEUED ELEMENT
AH = 0Fh
STACK: WORD queue ID (0 = process queue, 1 = object q, 3 = type q)
WORD ID of element in queue chain
Return: AX = key
SeeAlso: AH=0Ah"VMiX"
--------T-150F-------------------------------
INT 15 - MultiDOS Plus - EXECUTE A MULTIDOS PLUS COMMAND
AH = 0Fh
DS:BX -> ASCIZ command
Return: after command has been processed
Notes: specified string is executed as if it had been typed at the MultiDOS
command prompt
the task is placed on a queue which MultiDOS examines periodically and
is suspended until MultiDOS has processed the command
all lowercase characters up to the first blank are converted to upper
case within the given buffer
--------O-1510-------------------------------
INT 15 - VMiX - "sys_virtual" - EXECUTE CONFORMING FUNCTION IN PROTECTED MODE
AH = 10h
STACK: DWORD pointer to function
N WORDs function args
Return: AX = function's return value??? (not specified in documentation)
Note: while the function is executing, the following global descriptors are
available:
20h stack segment
38h code segment of function
40h data alias for function's code segment
additional GDT descriptors can be allocated using AH=02h with
function "assign gdt"
SeeAlso: AH=02h"VMiX",AH=51h"VMiX"
--------T-1510-------------------------------
INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE
AH = 10h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h semaphore not in use
01h semaphore owned by another task
02h invalid semaphore number
03h semaphore owned by caller
SeeAlso: AH=02h"MultiDOS",AH=0Dh"MultiDOS",AH=1Dh"MultiDOS"
--------Q-151000-----------------------------
INT 15 - TopView - "PAUSE" - GIVE UP CPU TIME
AX = 1000h
Return: after other processes run
Note: under DESQview, if the process issuing this call has hooked INT 08h,
the current time-slice is set to expire at the next clock tick rather
than immediately
SeeAlso: AH=00h"MultiDOS",AX=5305h,INT 21/AH=89h,INT 21/AH=EEh"DoubleDOS"
SeeAlso: INT 2F/AX=1680h,INT 60/DI=0106h,INT 62/AH=01h,INT 6F/AH=2Ah"F_YIELD"
SeeAlso: INT 7A/BX=000Ah,INT 7F/AH=02h"MultiLink",INT 7F/AH=E8h
--------Q-151001-----------------------------
INT 15 - TopView - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
AX = 1001h
BX = number of bytes to allocate
Return: ES:DI -> block of memory or 0000h:0000h (DV v2.26+)
AX = status (DV v2.42)
0000h successful
0001h failed
Note: use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
common memory. Under DV v2.42, this call never generates a user
prompt regardless of the SETERROR value; instead, it always returns
AX=0001h and ES:DI=0000h:0000h if out of memory
SeeAlso: AX=1002h,AX=102Eh,AX=DE0Ch,AX=DE15h
--------Q-151002-----------------------------
INT 15 - TopView - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
AX = 1002h
ES:DI -> previously allocated block
Return: block freed
SeeAlso: AX=1001h,AX=DE0Dh
--------Q-151003-----------------------------
INT 15 - TopView - "PRINTC" - DISPLAY CHARACTER/ATTRIBUTE ON SCREEN
AX = 1003h
BH = attribute
BL = character
DX = segment of object handle for window
Return: nothing
Note: BX=0000h does not display anything, it only positions the hardware
cursor to the logical cursor's current position
--------Q-1510-------------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
AH = 10h
AL = 04h thru 12h
Return: pops up "Programming error" window in DV 2.x
--------Q-151013-----------------------------
INT 15 - TopView - "GETBIT" - DEFINE A 2ND-LEVEL INTERRUPT HANDLER
AX = 1013h
ES:DI -> FAR service routine
Return: BX = bit mask indicating which bit was allocated
0000h if no more bits available
SeeAlso: AX=1014h,AX=1015h
Note: only a few TopView/DESQview API calls are allowed during a hardware
interrupt; if other calls need to be made, the interrupt handler
must schedule a 2nd-level interrupt with "SETBIT" (AX=1015h)
--------Q-151014-----------------------------
INT 15 - TopView - "FREEBIT" - UNDEFINE A 2ND-LEVEL INTERRUPT HANDLER
AX = 1014h
BX = bit mask from INT 15/AX=1013h
Return: nothing
SeeAlso: AX=1013h,AX=1015h
--------Q-151015-----------------------------
INT 15 - TopView - "SETBIT" - SCHEDULE ONE OR MORE 2ND-LEVEL INTERRUPTS
AX = 1015h
BX = bit mask for interrupts to post
Return: indicated routines will be called: (DV 2.0x) at next task switch
(DV 2.2x) immediately on return from
hardware interrupt
Notes: this is one of the few TopView calls which are allowed from a hardware
interrupt handler
the handler will be called with ES containing the segment of the handle
of the next task to be executed; on return, ES must be the segment of
a task handle
SeeAlso: AX=1013h,AX=1014h
--------Q-151016-----------------------------
INT 15 - TopView - "ISOBJ" - VERIFY OBJECT HANDLE
AX = 1016h
ES:DI = possible object handle
Return: BX = status
FFFFh if ES:DI is a valid object handle (see #0333)
0000h if ES:DI is not
Note: under DESQview versions prior to 2.50, an object handle is always a
pointer to the object; for versions 2.50 and up, only task handles
are always pointers--other handles may consist of a unique object
number and offset into DESQview's common memory (see #0342)
SeeAlso: AX=DE14h,AX=DE2Bh,AX=DE2Ch
(Table 0332)
Values for DESQview object type:
00h window/task
01h mailbox
02h keyboard
03h timer
04h pointer
05h panel
06h objectq
Format of DESQview object:
Offset Size Description (Table 0333)
00h WORD offset in common memory of previous object of same type
02h WORD offset in common memory of next object of same type
04h WORD signature FEDCh (DV 2.42-)
signature FEDCh or object number (DV 2.50+)
06h WORD object type (see #0332)
08h DWORD object handle to return to caller
0Ch DWORD canonicalized object address (segment = common memory)
10h WORD offset in common memory of owning task
(0000h for unowned OBJECTQs)
12h WORD mapping context
offset in common memory of mapping context record (see #0335)
remainder varies by object type and DESQview version
---v2.42 keyboard object---
14h WORD flag bits (see also AH=12h/BH=0Ah"OBJECT")
bit 15: keyboard opened
16h 4 BYTEs ???
1Ah WORD priority in OBJECTQ???
1Ch ...
25h WORD offset in common memory of ??? task
27h 4 BYTEs ???
---v2.42 objectq object---
14h WORD flag bits (see also AH=12h/BH=0Ah"OBJECT")
bit 15: OBJECTQ opened
16h 2 BYTEs ???
18h WORD offset in common memory of ??? task
1Ah 6 BYTEs ???
---v2.42 mailbox object---
14h WORD flag bits (see also AH=12h/BH=0Ah"OBJECT")
bit 15: mailbox opened
1Ah WORD priority in OBJECTQ???
1Ch 6 BYTEs ???
22h WORD offset in common memory of mailbox name (counted string)
0000h if no name
<= 5 BYTEs ???
---v2.22-2.42,2.52,2.60 window/task object---
14h BYTE 00h window, 01h task
15h BYTE internal (not Switch menu) window number???
16h BYTE internal (not Switch menu) window number???
17h WORD segment of internal window record (see #0336)
19h 2 BYTEs ???
1Bh BYTE cursor row
1Ch BYTE cursor column
1Dh BYTE visible window origin, row
1Eh BYTE visible window origin, column
1Fh BYTE window height (logical)
20h BYTE window width (logical)
21h BYTE window position, row
22h BYTE window position, column
23h BYTE window height (visible)
24h BYTE window width (visible)
25h BYTE row of top of frame (or window if unframed)
26h BYTE column of left of frame (or window if unframed)
27h BYTE window height (physical, including frame)
28h BYTE window width (physical, including frame)
29h BYTE unzoomed visible origin, row (00h before first zoom)
2Ah BYTE unzoomed visible origin, column (00h before first zoom)
2Bh BYTE unzoomed window position, row (00h before first zoom)
2Ch BYTE unzoomed window position, column (00h before first zoom)
2Dh BYTE unzoomed window height (00h before first zoom)
2Eh BYTE unzoomed window width (00h before first zoom)
unzoomed parameters above are updated when window is zoomed
to full screen
2Fh BYTE ??? initially logical window height
30h BYTE ??? initially logical window width
31h 2 BYTEs ???
33h BYTE minimum height of window
34h BYTE minimum width of window
35h BYTE maximum height of window
36h BYTE maximum width of window
37h 3 BYTEs ???
3Ah 8 BYTEs window frame characters: ul,ur,ll,lr,t,b,l,r
42h 24 BYTEs attributes???
5Ah 8 BYTEs window frame characters: ul,ur,ll,lr,t,b,l,r
62h 3 BYTEs ???
65h BYTE ??? bitflags
66h BYTE bit 0: window is zoomed
67h BYTE ???
68h WORD offset in common memory of window name or 0000h if untitled
6Ah WORD length of window name
6Ch 2 BYTEs ???
6Eh WORD offset of logical cursor in window (in character cells)
70h DWORD pointer to field table for window
74h BYTE ???
75h 2 BYTEs ???
77h BYTE number of last-visited field
78h DWORD pointer to field table entry for last-visited field
7Ch 3 BYTEs ???
7Fh BYTE select field marker character
80h BYTE ??? bit flags
bit 0: allow ECh window stream opcode to change reverse logattr
bit 1: alternate field processing mode selected
81h BYTE ???
82h DWORD notification function (manager stream opcode 8Ah)
no notification if segment = 0000h
86h DWORD notification argument (manager stream opcode 8Bh)
8Ah WORD offset in common memory of ??? window object or 0000h
8Ch WORD offset in common memory of ??? window object or 0000h
8Eh WORD offset in common memory of ??? window object or 0000h
90h BYTE ??? bitflags
91h BYTE ???
---task object only
92h BYTE bit flags (bits 0-4)
93h BYTE character for ??? (default 20h)
94h BYTE ??? flag
95h WORD offset in common memory of ???
97h 2 BYTEs ???
99h WORD ???
9Bh BYTE ??? bit flags
bit 3: ???
bit 6: perform protected-attribute processing on select fields
9Ch BYTE ???
9Dh WORD offset in common memory of current register save record
(see #0334). No register save record in use if < 01C0h
9Fh WORD offset in common memory of task's keyboard object
A1h WORD offset in common memory of task's OBJECTQ object
A3h WORD offset in common memory of task's mailbox object
A5h WORD semaphore: FFFFh if on user stack, else on task's private stack
A7h DWORD user's SS:SP
ABh WORD task's private SP (SS read from offset 0Ah)
ADh 6 BYTEs ???
B3h BYTE ??? bit flags
bit 0: run in foreground only
B4h BYTE ???
B5h BYTE ??? bitflags
B6h BYTE task status (see #0472 at AX=DE2Ch)
B7h 9 BYTEs ???
C0h WORD head pointer for keyboard buffer (wraps back to 00h after 80h)
C2h WORD tail pointer for keyboard buffer (wraps back to 00h after 80h)
C4h 2 BYTEs ??? (0000h)
C6h WORD segment of keyboard buffer for task
C8h WORD offset in common memory of ??? keyboard object
CAh BYTE ???
---v2.22-2.42
CBh WORD offset in common memory of ??? object
CEh BYTE ??? flag
CFh WORD offset in common memory of default notify window for task
or 0000h if none
D1h 4 BYTEs ???
D5h BYTE window number on Switch Window menu
D6h 5 BYTEs ???
DBh WORD offset in common memory of ??? object
DDh 2 BYTEs ???
DFh WORD API level for task
E1h WORD offset in common memory of object task is waiting on if task
status is 'waiting', else 0000h
E7h WORD segment of ???
E9h 4 BYTEs ???
EDh WORD EMS handle of virtualization buffer, 0000h if no virtualization
F1h 12 BYTEs ???
FBh WORD ???
FDh BYTE ???
FFh 12 BYTEs ???
10Bh DWORD pointer to process record (see #0337,#0338)
10Dh 10 BYTEs ???
119h DWORD SS:SP for ???
11Dh 4 BYTEs ???
121h DWORD pointer to ???
125h 25 BYTEs ???
13Eh DWORD pointer to ??? in system memory
---v2.22
142h 3 BYTEs ???
145h task's default keyboard object
---v2.42
142h DWORD pointer to first task instance data record in system memory
148h DWORD pointer to last task instance data record in system memory
(see #0339)
14Ah BYTE ???
14Dh 42 BYTEs task's default keyboard object
177h 32 BYTEs task's ObjectQ object
197h 41 BYTEs task's default mailbox object
1C0h 24 BYTEs first register save record
450h -- default top of private stack
---v2.52 (probably all DV/X)
Same as v2.60 below except there is an extra 29 bytes inserted somewhere
before offset 9Fh, but not yet known exactly where. Also, for the WAIT_ON
field (v2.60 offset E3h), some X apps (probably waiting on a socket) have
0000h even when waiting.
---v2.60
CBh WORD ??? (added in 2.50 - rest is same as 2.42)
CDh WORD offset in common memory of ??? object
D0h BYTE ??? flag
D1h WORD offset in common memory of default notify window for task
or 0000h if none
D3h 4 BYTEs ???
D7h BYTE window number on Switch Window menu
D8h 5 BYTEs ???
DDh WORD offset in common memory of ??? object
DFh 2 BYTEs ???
E1h WORD API level for task
E3h WORD If status at B6h=waiting, offset in common memory of object
that task is waiting on, else 0000h. (Task with CPU also
has 0000h here)
E9h WORD segment of ???
EBh 4 BYTEs ???
EFh WORD EMS handle of virtualization buffer, 0 if no virtualization
F3h 12 BYTEs ???
FDh WORD ???
FFh BYTE ???
101h 8 BYTEs ???
109h DWORD pointer to process record in system memory
10Dh 14 BYTEs ???
11Bh DWORD SS:SP for ???
11Fh 4 BYTEs ???
123h DWORD pointer to ???
127h 25 BYTEs ???
140h DWORD pointer to ??? in system memory
144h DWORD pointer to first task instance data record in system memory
148h DWORD pointer to last task instance data record in system memory
(from INT 15/AX=DE27h) (see #0339)
14Ch BYTE ???
14Eh 42 BYTEs task's default keyboard object
179h 32 BYTEs task's ObjectQ object
199h 41 BYTEs task's default mailbox object
1C2h 24 BYTEs first register save record
452h -- default top of private stack
Format of DESQview Register Save Record:
Offset Size Description (Table 0334)
00h WORD AX
02h WORD BX
04h WORD CX
06h WORD DX
08h WORD DI
0Ah WORD SI
0Eh WORD DS
10h WORD ES
12h DWORD return address
16h WORD original flags
Format of DESQview mapping context record:
Offset Size Description (Table 0335)
00h WORD lowest segment in process's memory
(often start of system memory chain)
02h WORD size of process's memory in paragraphs
04h BYTE flag: 00h if process swapped out, 01h otherwise
05h BYTE flag: 00h if allocated in conventional memory, 01h if EMS
06h 2 BYTEs ???
08h WORD EMS handle if in EMS, else 0
0Ah 2 BYTEs ??? (nonzero if system memory resides in shared mem???)
0Ch WORD segment of system memory block that contains process record,
referenced from segment of start of system memory chain
0Eh BYTE ???
0Fh WORD size of system memory block that contains process record
and DOS memory in paragraphs
11h BYTE bit flags
Bit 0: Swapped out???
Bit 1: ???
Bit 2: Swapped out???
12h BYTE ???
13h BYTE reference count
---v2.31
14h 10 BYTEs ???
1Eh WORD segment of process record
20h 2 BYTEs ???
22h WORD segment of ??? (in first free system memory block???)
24h WORD segment of end of system memory chain
26h WORD segment of start of system memory chain
28h 8 BYTEs ???
2Ah DWORD pointer to ??? (process record???)
2Dh 10 BYTEs ???
37h BYTE lowest interrupt vector to save on context switch
38h BYTE highest interrupt vector to save on context switch
39h WORD offset in common memory of main task with this context
3Ah 12 BYTEs ???
46h BYTE internal mapping context number
47h 12 BYTEs ???
---v2.5x-2.60
14h 6 BYTEs ???
1Ah WORD segment of process record
1Ch 2 BYTEs ???
1Eh WORD segment of first free system memory block
20h WORD segment of start of system memory chain
22h WORD segment of end of system memory chain
24h 8 BYTEs ???
2Ch DWORD pointer to ??? (1 segment into process record???)
30h 3 BYTEs ???
33h WORD Offset in common memory of main task with this context
35h 7 BYTEs ???
3Ch BYTE internal mapping context number
3Dh 14 BYTEs ???
4Bh WORD first DOS memory segment (first MCB segment+1)
4Dh BYTE ??? (flag???)
---v2.53 (2.5x???)
4Eh 12 BYTEs ???
---v2.60
4Eh WORD segment of script buffer (see #0340)
50h 6 BYTEs ???
Format of DESQview Internal Window Record (v2.31-2.60):
Offset Size Description (Table 0336)
00h BYTE internal window number???
01h BYTE display page???
02h BYTE video mode
03h 3 BYTEs ???
06h BYTE logical window height
07h BYTE logical window width
08h DWORD pointer to text video buffer
0Ch 116 BYTEs ???
Format of DESQview process record (v2.31):
Offset Size Description (Table 0337)
-470h 13 BYTEs filename of ??? Script
-463h 1117 BYTEs ??? (script buffer???)
-6h 6 BYTEs ???
00h WORD segment of parent PSP in process
02h 5 BYTEs ???
07h WORD segment of current PSP in process
09h WORD segment of first MCB in process
0Bh 13 BYTEs ???
18h 1024 BYTEs process's interrupt vector table
418h 376 BYTEs ???
590h first MCB in process
SeeAlso: #0338
Format of DESQview process record (v2.52-v2.60) (probably also 2.5x):
Offset Size Description (Table 0338)
00h 28 BYTEs EXE header of last EXE, ??? if last program run was COM
1Ch ??? BYTEs overwritten with ASCIZ filename of last program run (EXE/COM)
11Ch WORD segment of parent PSP in process
11Eh 4 BYTEs ???
122h WORD segment of current PSP
124h WORD segment of current PSP
126h WORD segment of first MCB in process
128h 4 BYTEs ???
12Ch DWORD pointer to first process instance data record in system memory
130h DWORD pointer to last process instance data record in system memory
(from INT 15/AX=DE27h) (see #0339)
134h 8 BYTEs ???
13Ch WORD size of current environment
13Eh WORD segment of current environment
140h WORD segment of current PSP
142h DWORD entry point of current program
146h 10 BYTEs ???
---v2.52 (v2.5x???)
150h BYTE ???
151h WORD segment of parent PSP in process
153h WORD ???
155h WORD ???
157h WORD ???
159h 4 BYTEs ???
15Dh WORD segment of current environment
15Fh WORD segment of current PSP
161h WORD segment of ???
162h WORD ???
164h 3 BYTEs ???
168h 1024 BYTEs process's interrupt vector table
568h 120 BYTEs ???
5E0h first MCB in process
---v2.60
150h WORD segment of parent PSP in process
152h WORD ???
154h WORD ???
156h WORD ???
158h 4 BYTEs ???
15Ch WORD segment of current environment
15Eh WORD segment of current PSP
160h WORD segment of ???
162h WORD ???
164h 1024 BYTEs process's interrupt vector table
564h 108 BYTEs ???
5D0h first MCB in process
SeeAlso: #0337
Format of DESQview task or process instance data record (v2.5x???, v2.60):
Offset Size Description (Table 0339)
00h DWORD pointer to next record of same type or 00000000
04h DWORD pointer to previous record of same type or 00000000
08h DWORD pointer to source area of memory during restore state
0Ch WORD number of bytes to save/restore
0Eh DWORD pointer to destination area of memory during restore state
12h WORD ??? (0)
14h N BYTEs source memory buffer during restore state
Format of DESQview script buffer (v2.60):
Offset Size Description (Table 0340)
00h 13 BYTEs ASCIZ Script filename
0Dh 80 BYTEs ???
5Eh N BYTEs script records (see #0341)
Format of one DESQview script record (v2.60):
Offset Size Description (Table 0341)
00h BYTE signature 12h
01h 18 BYTEs blank-padded script name
13h BYTE ASCII code of key attached to script or 0 if non-ASCII key
14h BYTE scan code of key attached to script if non-ASCII, else 0
15h BYTE ???
16h WORD size of script in bytes
18h N BYTEs script (ASCII code of each keystroke; if 0, next byte is
scan code of non-ASCII key)
SeeAlso: #0340
Format of DESQview Common Memory Header (v2.31-2.60):
Offset Size Description (Table 0342)
00h WORD offset of lowest used block
02h WORD bytes of commom memory, including header
04h WORD offset of first free block
06h N BYTEs size depends of DV version, ??? (DVP buffer???)
Note: the above is located at the beginning of the commom memory segment
SeeAlso: #0343,#0344,#0352
Format of DESQview Free block header:
Offset Size Description (Table 0343)
00h WORD size of block in bytes including header
02h WORD offset of next free block
04h N BYTEs free block
SeeAlso: #0342,#0344
Format of DESQview Used block header:
Offset Size Description (Table 0344)
00h WORD size of block in bytes including header
02h N BYTEs used block
SeeAlso: #0342,#0343
--------Q-151017-----------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
AX = 1017h
Return: pops up "Programming error" window in DV 2.x
--------Q-151018-----------------------------
INT 15 - TopView - "LOCATE" - FIND WINDOW AT A GIVEN SCREEN LOCATION
AX = 1018h
BH = column
BL = row
ES = segment of object handle for window below which to search
0000h = start search with topmost window
Return: ES = segment of object handle for window which is visible at the
indicated position, or covered by indicated window
0000h if no window
SeeAlso: AX=1023h,AX=1024h
--------Q-151019-----------------------------
INT 15 - TopView - "SOUND" - MAKE TONE
AX = 1019h
BX = frequency in Hertz (0000h = silence)
CX = duration in clock ticks (18.2 ticks/sec)
Return: immediately, tone continues to completion
Notes: if another tone is already playing, the new tone does not start until
completion of the previous one. Up to 32 tones may be queued before
the process is blocked until a note completes.
in DV 2.00, the lowest tone allowed is 20 Hz
if CX = 0, the current note is cancelled; if BX = 0 as well, all queued
notes are also cancelled
SeeAlso: AH=82h"HUNTER",INT 16/AH=73h
--------Q-15101A-----------------------------
INT 15 - TopView - "OSTACK" - SWITCH TO TASK'S INTERNAL STACK
AX = 101Ah
Return: stack switched
Notes: this call may not be nested; a second call must be preceded by a call
to "USTACK" (AX=1025h)
while TopView requires many API calls to be executed while on the
task's internal stack, DESQview allows those calls to be executed
regardless of the current stack
SeeAlso: AX=1025h
--------Q-15101B-----------------------------
INT 15 - TopView - "BEGINC" - BEGIN CRITICAL REGION
AX = 101Bh
Return: task-switching temporarily disabled
Notes: will not task-switch until "ENDC" (AX = 101Ch) called unless task
voluntarily releases the CPU (upon regaining the CPU, task-switching
will again be disabled)
suspends the caller until DOS is free
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AX=DE13h,AX=DE1Ch,INT 2F/AX=1681h
SeeAlso: INT 60/DI=0602h
--------Q-15101C-----------------------------
INT 15 - TopView - "ENDC" - END CRITICAL REGION
AX = 101Ch
Return: task-switching enabled
Note: this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=DE13h,AX=DE1Bh,INT 2F/AX=1682h,INT 60/DI=0603h
--------Q-15101D-----------------------------
INT 15 - TopView - "STOP" - STOP TASK
AX = 101Dh
ES = segment of object handle for task to be stopped
(== handle of main window for that task)
Return: indicated task will not get any CPU time until restarted with AX=101Eh
Note: once a task has been stopped, additional "STOP"s are ignored
BUG: in DV 2.00, this function is ignored unless the indicated task is the
current task
SeeAlso: AX=101Eh,AX=102Bh,AH=12h"VMiX",INT 21/AH=81h
--------Q-15101E-----------------------------
INT 15 - TopView - "START" - START TASK
AX = 101Eh
ES = segment of object handle for task to be started
(== handle of main window for that task)
Return: indicated task is started up again
Note: once a task has been started, additional "START"s are ignored
SeeAlso: AX=101Dh,AX=102Bh,INT 21/AH=82h
--------Q-15101F-----------------------------
INT 15 - TopView - "DISPEROR" - POP-UP ERROR WINDOW
AX = 101Fh
BX = bit fields
bits 0-12: number of characters to display
bits 13,14: which mouse button may be pressed to remove window
00 = either
01 = left
10 = right
11 = either
bit 15: beep if 1
ES:DI -> text of message
CH = width of error window (0 = default)
CL = height of error window (0 = default)
DX = segment of object handle
Return: BX = status: 1 = left button, 2 = right, 27 = ESC pressed
Note: window remains on-screen until ESC or indicated mouse button is pressed
--------Q-151020-----------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV v2.00+
AX = 1020h
Return: pops up "Programming error" window in DV v2.00+
--------Q-151021-----------------------------
INT 15 - TopView - "PGMINT" - INTERRUPT ANOTHER TASK
AX = 1021h
BX = segment of object handle for task to interrupt (not self)
DX:CX -> FAR routine to jump to next time task is run
Return: nothing
Notes: the FAR routine is entered with the current ES, DS, SI, DI, and BP
values, using the task's internal stack (see AX=101Ah); only SS:SP
needs to be preserved
multiple PGMINTs to a single task are processed last-in first-out
if the other task is in a DOS or DV API call, the interruption will
occur on return from that call
--------Q-151022BX0000-----------------------
INT 15 - TopView - "GETVER" - GET VERSION
AX = 1022h
BX = 0000h
Return: BX nonzero, TopView or compatible loaded
(BL = major version, BH = minor version)
Notes: TaskView returns BX = 0001h, DESQview v2.00+ returns BX = 0A01h
--------Q-151023-----------------------------
INT 15 - TopView - "POSWIN" - POSITION WINDOW
AX = 1023h
BX = segment of object handle for parent window within which to
position the window (0 = full screen)
ES = segment of object handle for window to be positioned
DL = general window position (see #0345)
CH = number of columns to offset from position specified by DL
CL = number of rows to offset from position specified by DL
Return: nothing
Bitfields for TopView general window position:
Bit(s) Description (Table 0345)
0,1 horizontal position
00 = current, 01 = center, 10 = left, 11 = right
2,3 vertical position
00 = current, 01 = center, 10 = top, 11 = bottom
4 don't redraw screen if set
5-7 not used
--------Q-151024-----------------------------
INT 15 - TopView - "GETBUF" - GET VIRTUAL SCREEN INFO
AX = 1024h
BX = segment of object handle for window
(0 = use default)
Return: ES:DI -> virtual screen
CX = size of virtual screen in bytes
DL = 00h text screen
01h graphics screen
SeeAlso: INT 10/AH=FEh,INT 21/AH=2Bh/CX=4445h
--------Q-151025-----------------------------
INT 15 - TopView - "USTACK" - SWITCH BACK TO USER'S STACK
AX = 1025h
Return: stack switched back
Notes: call only after having switched to internal stack with AX=101Ah
while TopView requires many API calls to be executed while on the
task's private stack, DESQview allows those calls to be executed
regardless of the current stack
SeeAlso: AX=101Ah
--------Q-1510-------------------------------
INT 15 - DESQview (TopView???) - UNIMPLEMENTED IN DV 2.x
AH = 10h
AL = 26h thru 2Ah
Return: pops up "Programming error" window in DV 2.x
--------Q-15102B-----------------------------
INT 15 - DESQview v2.00+ (TopView???) - "POSTTASK" - AWAKEN TASK
AX = 102Bh
BX = segment of object handle for task
Return: nothing
Note: forces a task which is waiting on its objectq to continue by placing
the handle for the task on the objectq
SeeAlso: AX=101Dh,AX=101Eh,INT 21/AH=82h
--------Q-15102C-----------------------------
INT 15 - DESQview v2.00+ - "NEWPROC" - START NEW APPLICATION IN NEW PROCESS
AX = 102Ch
ES:DI -> contents of .PIF/.DVP file (see #0346)
BX = size of .PIF/.DVP info
Return: BX = segment of object handle for new task
0000h on error
SeeAlso: AX=DE24h,INT 21/AH=4Bh
Format of .PIF/.DVP file:
Offset Size Description (Table 0346)
00h BYTE reserved (0)
01h BYTE checksum of bytes 02h through 170h
02h 30 BYTEs blank-padded program title
20h WORD maximum memory to allocate to partition in KB
22h WORD minimum memory required in KB
24h 64 BYTEs ASCIZ program pathname
64h BYTE default drive letter ('A',...)
65h 64 BYTEs ASCIZ default directory name
A5h 64 BYTEs ASCIZ program parameters
E5h BYTE initial screen mode (0-7) (also see offset 189h)
E6h BYTE number of text pages used
E7h BYTE number of first interrupt to save
E8h BYTE number of last interrupt to save
E9h BYTE rows in virtual screen buffer
EAh BYTE columns in virtual screen buffer
EBh BYTE initial window position, row
ECh BYTE initial window position, column
EDh WORD system memory in KB
EFh 64 BYTEs ASCIZ shared program name
12Fh 64 BYTEs ASCIZ shared program data file
16Fh BYTE program flags 1 (see #0347)
170h BYTE flags2
bit 6: uses command-line parameters in field at A5h
bit 5: swaps interrupt vectors
---information unique to .DVP files---
171h 2 BYTEs keys to use on open menu
173h WORD size of script buffer in bytes
175h WORD automatically give up CPU after this many tests for keyboard
input in one clock tick (default 0 = never)
177h BYTE nonzero = "uses own colors"
178h BYTE nonzero if application swappable
179h 3 BYTEs reserved (0) according to Quarterdeck documentation
in actual .DVP files, frequently 01h
17Ch BYTE nonzero to automatically close on exit (see also #0349)
17Dh BYTE nonzero if copy-protect floppy is required
---information unique to DESQview 2.0+---
17Eh BYTE .DVP version number
00h DESQview v1.2+
01h DESQview v2.0+
02h DESQview v2.2+
17Fh BYTE reserved (0)
180h BYTE initial number of rows in physical window
181h BYTE initial number of columns in physical window
182h WORD maximum expanded memory to allow, in KB
184h BYTE DVP program flags 3 (see #0348)
185h BYTE keyboard conflict level (0-4 for DV<2.26, 00h-0Fh for DV2.26+)
(see #0350)
186h BYTE number of graphics pages used
187h WORD extra system memory size
189h BYTE initial screen mode (FFh = default) (overrides offset E5h)
---information unique to DESQview 2.2+---
18Ah BYTE serial port usage
FFh uses all serial ports
00h no serial ports
01h only COM1
02h only COM2
18Bh BYTE DVP program flags 4 (see #0349)
18Ch BYTE protection level for 386 machines
18Dh 19 BYTEs reserved (0) for regular DESQview
---information unique to DESQview/X 1.0---
18Dh BYTE X flags
bits 3-7: unused (0)
bit 2: don't display wait message when opening window
bit 1: don't display DOS window
bit 0: (XNEWPROC) use DOS client layer (DOS-to-X)
(NEWPROC) inherit DOS client layer usage
18Eh BYTE X keyboard behavior (0-3)
18Fh BYTE font scaling
00h fixed fonts
01h scalable fonts
190h 10 BYTEs reserved (0)
19Ah WORD length of data follownig XDVP signature
19Ch 4 BYTEs signature "XDVP"
1A0h N BYTEs list of variable length records (see #0351)
Bitfields for .PIF/.DVP program flags 1:
Bit(s) Description (Table 0347)
7 writes text directly to screen
6 runs in foreground only (see also #0346 offset 184h)
5 uses math coprocessor
4 accesses system keyboard buffer directly
3-1 reserved (0)
0 swappable
SeeAlso: #0346,#0348,#0349
Bitfields for .DVP program flags 3:
Bit(s) Description (Table 0348)
7 automatically assign window position
5 maximum memory value has been specified
4 disallow "Close" command
3 foreground-only when doing graphics
set by DV 2.3+ when "Runs in Background" = "D" (undoc)
2 don't virtualize (see also #0349)
1 foreground-only during DOS calls
set by DV 2.3+ when "Runs in Background" = "D" (undoc)
SeeAlso: #0346,#0347,#0349
Bitfields for .DVP program flags 4:
Bit(s) Description (Table 0349)
7 automatically close application on exit if .COM or .EXE specified
(see also #0346 offset 17Ch)
6 swappable if not using serial ports
5 start program with window hidden (v2.26+)
4 start program in background (v2.26+)
3 virtualize text (see also #0348)
2 virtualize graphics (see also #0348)
1 share CPU when foreground
0 share EGA when foreground and zoomed
SeeAlso: #0346,#0347,#0348
Bitfields for DESQview keyboard conflict level:
Bit(s) Description (Table 0350)
3 save/restore entire INT 09 handler state every taskswtch
2 take special precautions for programs which read the BIOS keyboard
buffer directly from memory
1 never indicate keystroke available during scripts/xfers
0 only indicate keystroke available every sixth poll
SeeAlso: #0346
Format of DESQview/X variable length record:
Offset Size Description (Table 0351)
00h WORD length of following record, 0000h if end of record list
02h BYTE record type
01h script filename, up to 64 characters
02h command-line parameters (allows >64 characters on cmdline)
03h environment inheritance
04h environment string
05h starting window position
---types 01h,02h,04h---
03h N BYTEs ASCII data
---type 03h---
03h BYTE inheritance
00h do not inherit
01h inherit environment
---type 05h---
03h N BYTEs ASCII copy of fields as typed into DVPMAN, separated by commas:
starting row, starting column, starting height, starting width
Note: if there are multiple occurrences of record types 01h, 02h, or 03h,
only the last instance of each type is used; multiple occurrences of
type 04h are concatenated
SeeAlso: #0346
--------Q-15102D-----------------------------
INT 15 - DESQview v2.00+ - "KMOUSE" - KEYBOARD MOUSE CONTROL
AX = 102Dh
BL = subfunction
00h determine whether using keyboard mouse
Return: BL = 00h using real mouse
01h using keyboard mouse
01h turn keyboard mouse on
02h turn keyboard mouse off
--------Q-15102E-----------------------------
INT 15 - DESQview v2.40+ - ALLOCATE SYSTEM MEMORY
AX = 102Eh
BX = number of bytes
Return: AX = status
0000h successful
ES:DI -> allocated system memory (see #0352)
0001h failed
ES:DI = 0000h:0000h
Note: under DV 2.42, this call is identical to AX=1001h
SeeAlso: AX=1001h,AX=1002h,AX=DE0Ch
Format of DESQview system memory block header:
Offset Size Description (Table 0352)
00h WORD segment of next header or 0000h
02h WORD segment of previous header or 0000h
04h WORD size of block in paragraphs, including header
06h BYTE availability flag (00h in use, 01h free)
Note: this header is located one paragraph before the memory block proper
SeeAlso: #0342
--------Q-1511-------------------------------
INT 15 - TopView commands
AH = 11h
AL = various (except 17h)
Return: varies by function
Note: in DESQview 2.x, these function calls are identical to AH=DEh, so
see those below
SeeAlso: AX=DE00h,AX=DE22h,AX=DE30h
--------T-1511-------------------------------
INT 15 - VMiX - "sys_system" - EXECUTE SHELL SYSTEM COMMANDS
AH = 11h
STACK: DWORD pointer to ASCIZ string containing a VMiX shell
request (max len = 127)
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=0Ch"VMiX"
--------T-1511-------------------------------
INT 15 - MultiDOS Plus - TURN OFF AltZ TOGGLE
AH = 11h
Note: disables the Alt-Z MultiDOS command/program-selection hotkey
SeeAlso: AH=12h"MultiDOS"
Index: hotkeys;MultiDOS Plus
--------Q-151117BX0000-----------------------
INT 15 - DESQview v2.20+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
AX = 1117h
BX = 0000h get current mapping context without setting
nonzero set new mapping context
Return: BX = mapping context in effect before call
interrupts enabled
Notes: this function differs from AX = DE17h for DESQview v2.20 through 2.25
mapping contexts determine conventional-memory addressability; setting
a mapping context ensures that the associated program and data areas
are in memory for access. Usable by drivers, TSRs and shared
programs.
caller need not be running under DESQview, but must ensure that the
stack in use will not be mapped out by the call
SeeAlso: AX=DE17h,INT 2F/AX=1685h
--------m-1511DE-----------------------------
INT 15 - DESQview - QEXT.SYS - INSTALLATION CHECK
AX = 11DEh
Return: CF clear if installed
AX = segment at which QEXT.SYS is located
Desc: QEXT.SYS is Quarterdeck's HMA manager for DESQview; more recent
versions also implement the XMS standard
Note: a private entry point (see #0353) may be found by searching the
beginning of the returned segment for the signature string
"QUARTERDECK EXTENDED MEMORY MANAGER 286"; the word immediately
prior to the signature contains the QEXT version number in BCD,
and the word prior to that contains the offset within the QEXT
code segment of the private entry point
SeeAlso: INT 2F/AX=4310h"XMS",INT 67/AH=3Fh
(Table 0353)
Call QEXT.SYS private entry point with:
AH = 00h ???
AH = nonzero ???
--------!---Section--------------------------