INT 13h is shorthand for BIOS interrupt call 13hex, the 20th interrupt vector in an x86-based (IBM PC-descended) computer system. The BIOS typically sets...

which can be indicated with a prefix 0x or with the suffix h. For example, INT 13H will generate the 20th software interrupt (0x13 is nineteen (19) in hexadecimal...

to the drive.: 87  However, the IBM BIOS implementation defined in the INT 13h disk access routines used quite a different 24-bit scheme for CHS addressing...

Multiple controllers can hook INT 13h at once. For instance, after the SCSI controller, an AHCI controller can also hook INT 13h by putting a call to the previous...

INT 10h, INT 10H or INT 16 is shorthand for BIOS interrupt call 10hex, the 17th interrupt vector in an x86-based computer system. The BIOS typically sets...

Mode 13h is the standard 256-color mode on VGA graphics hardware introduced in 1987 with the IBM PS/2. It has a resolution of 320 × 200 pixels. It was...

within two bytes in order to facilitate making calls to the original/legacy INT 13h BIOS disk access routines, where 16 bits were divided into sector and cylinder...

register values: INT 21h/AH=2Ah "Get system date" returned values: CX = year (1980..2099), DH = month (1..12), DL = day (1..31). INT 21h/AH=2Ch "Get system...

geometries. This historical oddity can affect the maximum disk size in old BIOS INT 13h code as well as old PC DOS or similar operating systems: (512 bytes/sector)×(63...

will assign a BIOS drive number to the CD drive. The drive number (for INT 13H) assigned is any of 80hex (hard disk emulation), 00hex (floppy disk emulation)...

more sophisticated. Advanced techniques included hooking low-level disk INT 13H BIOS interrupt calls to hide unauthorized modifications to files. The first...

functionality which the operating system depends on (particularly interrupts INT 10H and INT 13H). HP Integrity Virtual Machines provides UEFI boot on HP Integrity...

licensed OEM Windows BIOS. Trusted Platform Module Enhanced Disk Drive (EDD) (INT 13H extensions) e820 memory map Protected mode interfaces, e.g. APM, Legacy...

controllers CE-ATA – Interface for small hard drives FATA (hard drive) INT 13H – BIOS interrupt call for disk access IT8212 – Parallel ATA controllerPages...

if the BPB value is set to FFh.) DH bit 5 = 0: device supported through INT 13h; else: don't care (should be zero). DH is supported by some IBM BIOSes...

MicroHouse / StorageSoft EZ-Drive EZ-Drive, Maxtor, MaxBlast, or DriveGuide INT 13h redirector volume 56h AT&T AT&T MS-DOS 3.x Logical sectored FAT12 or FAT16...

Enabled Boot Disk (DRFAT32). Caldera, Inc. 1998-07-24. DRFAT32.SYS R1.00 INT 13h Interface for FAT32 Redirector, Caldera, Inc., 1998-09-11 IBM; 4690 OS...

MS-DOS applications to disk. Without it, if the real mode disk code (the Int 13h handler) was paged out, the virtual DOS machine would loop forever. 32-bit...

charging[citation needed]. The device does not provide the BIOS service (INT 13h) for reading from a hard disk. Drivers have been partially written for...

patching low-level BIOS interrupts such as int 13h, the low-level disk I/O interrupt. When a program issued an int 21h call to access MS-DOS, the call would...

Boot Specification 1.01 1996/01 BIOS Enhanced Disk Drive Specification (INT 13H) 3.0 1998/04/20 Bluetooth 5.0 2010/06/30 Boot Integrity Services API 1...

calls to the DOS API are invoked using software interrupt 21h (INT 21h). By calling INT 21h with a subfunction number in the AH processor register and...

24 bits always uses 6 bits for up to 63 sectors per track (1...63), and INT 13h disk access generally uses 8 bits for up to 256 heads (0...255), leaving...

the BIOS had a hard drive capacity limitation of 8.9 GB because of BIOS INT 13H. In July 1997, the Santa Cruz Sheriff's office purchased 29 IBM ThinkPad...

authorship of "well-behaved" programs that accessed hardware only through BIOS INT calls (and DOS service calls), to support compatibility of software with...

INT (iodonitrotetrazolium or 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium) is a commonly used tetrazolium salt (usually prepared with chloride...

Carboxyl-Carbon and α-Nitrogen from Amino Acids in Soil Hydrolysates". J. AOAC Int. 86 (6): 1106–1111. doi:10.1093/jaoac/86.6.1106. PMID 14979690.{{cite journal}}:...

Boundary in Central Africa". Earth Interactions. 13 (8): 1–29. Bibcode:2009EaInt..13h...1M. doi:10.1175/2009EI278.1. S2CID 140640631. Loft, Ty; Stevens, Nicola;...

magnetocaloric effect. These include Gd 5(Si xGe 1−x) 4, La(Fe xSi 1−x) 13H x and MnFeP 1−xAs x alloys. Gadolinium and its alloys undergo second-order...

- 16). #include <stdio.h> #include <cpuid.h> int main() { unsigned int eax, ebx, ecx, edx; unsigned int lsize, assoc, cache; __cpuid(0x80000006, eax,...