Specifications

MICROPROCESSADORES
INTERRUPÇÕES
5
Luís Miguel Charrua Figueiredo 5 - 20 E.N.I.D.H.
76h officially listed as reserved
7Eh F.I.X.
80h Minix v1.1 - 1.4a
81h Minix v1.4b+
81h Linux
81h Mitac Advanced Disk Manager
82h Linux Swap partition
82h Prime
82h Solaris (Unix)
83h Linux native file system (ext2fs/xiafs)
84h OS/2-renumbered type 04h partition (related to hiding DOS C: drive)
85h Linux EXT
86h FAT16 volume/stripe set (Windows NT)
87h HPFS Fault-Tolerant mirrored partition
87h NTFS volume/stripe set
93h Amoeba file system
94h Amoeba bad block table
98h Datalight ROM-DOS SuperBoot
99h Mylex EISA SCSI
A0h Phoenix NoteBIOS Power Management "Save-to-Disk" partition
A1h officially listed as reserved
A3h officially listed as reserved
A4h officially listed as reserved
A5h FreeBSD, BSD/386
A6h OpenBSD
A9h NetBSD (http://www.netbsd.org/)
B1h officially listed as reserved
B3h officially listed as reserved
B4h officially listed as reserved
B6h officially listed as reserved
B6h Windows NT mirror set (master), FAT16 file system
B7h BSDI file system (secondarily swap)
B7h Windows NT mirror set (master), NTFS file system
B8h BSDI swap partition (secondarily file system)
BEh Solaris boot partition
C0h DR DOS/DR-DOS/Novell DOS secured partition
C0h CTOS
C1h DR DOS 6.0 LOGIN.EXE-secured 12-bit FAT partition
C4h DR DOS 6.0 LOGIN.EXE-secured 16-bit FAT partition
C6h DR DOS 6.0 LOGIN.EXE-secured Huge partition
C6h corrupted FAT16 volume/stripe set (Windows NT)
C6h Windows NT mirror set (slave), FAT16 file system
C7h Syrinx Boot
C7h corrupted NTFS volume/stripe set
C7h Windows NT mirror set (slave), NTFS file system
CBh Reserved for DR DOS/DR-DOS/OpenDOS secured FAT32
CCh Reserved for DR DOS/DR-DOS secured FAT32 (LBA)
CEh Reserved for DR DOS/DR-DOS secured FAT16 (LBA)
D0h Multiuser DOS secured FAT12
D1h Old Multiuser DOS secured FAT12
D4h Old Multiuser DOS secured FAT16 (<= 32M)
D5h Old Multiuser DOS secured extended partition
D6h Old Multiuser DOS secured FAT16 (> 32M)
D8h CP/M-86
DBh CP/M, Concurrent CP/M, Concurrent DOS
DBh CTOS (Convergent Technologies OS)
E1h SpeedStor 12-bit FAT extended partition
E2h DOS read-only (Florian Painke's XFDISK 1.0.4)
E3h DOS read-only
E3h Storage Dimensions
E4h SpeedStor 16-bit FAT extended partition
E5h officially listed as reserved
E6h officially listed as reserved
EBh BeOS BFS (BFS1)
F1h Storage Dimensions
F2h DOS 3.3+ secondary partition
F3h officially listed as reserved
F4h SpeedStor
F4h Storage Dimensions
F5h Prologue
F6h officially listed as reserved
FEh LANstep
FEh IBM PS/2 IML (Initial Microcode Load) partition
FFh Xenix bad block table
Note
: for partition type 07h, one should inspect the partition boot record
for the actual file system type
SeeAlso
: #00651
(Table 00653)
Values Bootstrap loader is called with (IBM BIOS):
CS:IP = 0000h:7C00h
DH = access
bits 7-6,4-0: don't care
bit 5: =0 device supported by INT 13
DL = boot drive
00h first floppy
80h first hard disk
INT 1A - TIME - GET REAL-TIME CLOCK TIME (AT,XT286,PS)
AH = 02h
CF clear to avoid bug (see below)
Return
: CF clear if successful
CH = hour (BCD)
CL = minutes (BCD)
DH = seconds (BCD)
DL = daylight savings flag (00h standard time, 01h daylight time)
CF set on error (i.e. clock not running or in middle of update)
Notes
: this function is also supported by the Sperry PC, which predates the
IBM AT; the data is returned in binary rather than BCD on the Sperry, and DL is
always 00h MS-DOS/PC DOS IO.SYS/IBMBIO.COM use this function to detect if
a RTC is preset by checking if the returned values are non-zero. If they are, this
function is called one more time, before it is assumed that no RTC is present.
BUG
: some BIOSes leave CF unchanged if successful, so CF should be
cleared
before calling this function
SeeAlso
: AH=00h,AH=03h,AH=04h,INT 21/AH=2Ch
INT 1A - TIME - SET REAL-TIME CLOCK TIME (AT,XT286,PS)
AH = 03h
CH = hour (BCD)
CL = minutes (BCD)
DH = seconds (BCD)
DL = daylight savings flag (00h standard time, 01h daylight time)
Return
: nothing
Note
: this function is also supported by the Sperry PC, which predates the
IBM AT; the data is specified in binary rather than BCD on the Sperry, and the
value of DL is ignored
SeeAlso
: AH=01h,AH=03h,AH=05h,INT 21/AH=2Dh,INT 4B/AH=01h
INT 1A - TIME - SET REAL-TIME CLOCK DATE (AT,XT286,PS)
AH = 05h
CH = century (BCD)
CL = year (BCD)
DH = month (BCD)
DL = day (BCD)
Return
: nothing
SeeAlso
: AH=04h,INT 21/AH=2Bh"DATE",INT 4B/AH=00h"TI"
INT 1A - TIME - SET ALARM (AT,XT286,PS)
AH = 06h
CH = hour (BCD)
CL = minutes (BCD)
DH = seconds (BCD)
Return
: CF set on error (alarm already set or clock stopped for update)
CF clear if successful
Notes
: the alarm occurs every 24 hours until turned off, invoking INT 4A each
time the BIOS does not check for invalid values for the time, so the CMOS clock
chip's "don't care" setting (any values between C0h and FFh) may be used for any
or all three parts. For example, to create an alarm once a minute, every minute,
call with CH=FFh, CL=FFh, and DH=00h.