About: INT 13H

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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 up a real mode interrupt handler at this vector that provides sector-based hard disk and floppy disk read and write services using cylinder-head-sector (CHS) addressing. Modern PC BIOSes also include INT 13h extension functions, originated by IBM and Microsoft in 1992, that provide those same disk access services using 64-bit LBA addressing; with minor additions, these were quasi-standardized by Phoenix Technologies and others as the EDD (Enhanced Disk Drive) BIOS extensions.

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  • INT 13h es la forma abreviada para la llamada de interrupción del BIOS 13hex, el cual es el vector de interrupción 20º en un sistema de arquitecturas de computadoras basada en x86. Esta interrupción se encarga de las operaciones típicas de acceso a las unidades de almacenamiento tales como discos duros y disquetes. (es)
  • 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 up a real mode interrupt handler at this vector that provides sector-based hard disk and floppy disk read and write services using cylinder-head-sector (CHS) addressing. Modern PC BIOSes also include INT 13h extension functions, originated by IBM and Microsoft in 1992, that provide those same disk access services using 64-bit LBA addressing; with minor additions, these were quasi-standardized by Phoenix Technologies and others as the EDD (Enhanced Disk Drive) BIOS extensions. INT is an x86 instruction that triggers a software interrupt, and 13hex is the interrupt number (as a hexadecimal value) being called. Modern computers come with both BIOS INT 13h and UEFI functionality that provides the same services and more, with the exception of UEFI Class 3 that completely removes CSM thus lacks INT 13h and other interrupts. Typically, UEFI drivers use LBA-addressing instead of CHS-addressing. (en)
  • Interrupt 13h atau interupsi heksadesimal 13 adalah sebuah jenis interupsi yang disediakan oleh BIOS untuk menangani akses terhadap media penyimpanan (khususnya yang berbasis cakram/disk) dalam komputer berbasis arsitektur x86. Interupsi ini digunakan oleh sistem operasi DOS dan Windows 95/98. Windows NT, Windows 2000, Windows XP, Windows Server 2003, serta GNU/Linux tidak lagi menggunakan interupsi ini karena sistem-sistem tersebut menggunakan level interupsi yang berbeda (mereka cenderung melimitasi akses terhadap perangkat keras secara langsung). * l * * s (in)
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  • May 2019 (en)
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  • INT 13h es la forma abreviada para la llamada de interrupción del BIOS 13hex, el cual es el vector de interrupción 20º en un sistema de arquitecturas de computadoras basada en x86. Esta interrupción se encarga de las operaciones típicas de acceso a las unidades de almacenamiento tales como discos duros y disquetes. (es)
  • Interrupt 13h atau interupsi heksadesimal 13 adalah sebuah jenis interupsi yang disediakan oleh BIOS untuk menangani akses terhadap media penyimpanan (khususnya yang berbasis cakram/disk) dalam komputer berbasis arsitektur x86. Interupsi ini digunakan oleh sistem operasi DOS dan Windows 95/98. Windows NT, Windows 2000, Windows XP, Windows Server 2003, serta GNU/Linux tidak lagi menggunakan interupsi ini karena sistem-sistem tersebut menggunakan level interupsi yang berbeda (mereka cenderung melimitasi akses terhadap perangkat keras secara langsung). * l * * s (in)
  • 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 up a real mode interrupt handler at this vector that provides sector-based hard disk and floppy disk read and write services using cylinder-head-sector (CHS) addressing. Modern PC BIOSes also include INT 13h extension functions, originated by IBM and Microsoft in 1992, that provide those same disk access services using 64-bit LBA addressing; with minor additions, these were quasi-standardized by Phoenix Technologies and others as the EDD (Enhanced Disk Drive) BIOS extensions. (en)
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  • Int 13h (es)
  • Interupsi BIOS 13h (in)
  • INT 13H (en)
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