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INT (x86 instruction)

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INT is an assembly language instruction for x86 processors that generates a software interrupt. [1]

19 relations: Assembly language, BIOS interrupt call, Breakpoint, Byte, Central processing unit, Compiler, Debugger, Hexadecimal, INT 10H, INT 13H, Interrupt, Interrupt vector table, MS-DOS API, Ralf Brown's Interrupt List, Real mode, System call, Unix, Unix signal, X86.

An assembly language (or assembler language) is a low-level programming language for a computer, or other programmable device, in which there is a very strong (generally one-to-one) correspondence between the language and the architecture's machine code instructions.

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BIOS interrupt calls are a facility that operating systems and application programs use to invoke the facilities of the Basic Input/Output System on IBM PC compatible computers.

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In software development, a breakpoint is an intentional stopping or pausing place in a program, put in place for debugging purposes.

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The byte is a unit of digital information that most commonly consists of eight bits.

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A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.

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A compiler is a computer program (or a set of programs) that transforms source code written in a programming language (the source language) into another computer language (the target language), with the latter often having a binary form known as object code.

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A debugger or debugging tool is a computer program that is used to test and debug other programs (the "target" program).

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In mathematics and computing, hexadecimal (also base, or hex) is a positional numeral system with a radix, or base, of 16.

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

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INT 13h is shorthand for BIOS interrupt call 13hex, the 20th interrupt vector in an x86-based computer system.

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In systems programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.

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An interrupt vector table, a concept common across various processor architectures, is a table of interrupt vectors that associates an interrupt handler with an interrupt request in a machine specific way.

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The MS-DOS API is an API which originated with 86-DOS and is used in MS-DOS/PC DOS and other DOS-compatible operating systems.

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Ralf Brown's Interrupt List (RBIL) is a comprehensive list of interrupts, calls, hooks, interfaces, data structures, memory and port addresses, and processor opcodes for x86 machines from the very start of the PC era in 1981 up into the year 2000, most of it still applying to PCs.

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Real mode, also called real address mode, is an operating mode of all x86-compatible CPUs.

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In computing, a system call is how a program requests a service from an operating system's kernel.

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Unix (all-caps UNIX for the trademark) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, developed in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others.

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Signals are a limited form of inter-process communication used in Unix, Unix-like, and other POSIX-compliant operating systems.

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x86 is a family of backward compatible instruction set architectures based on the Intel 8086 CPU and its Intel 8088 variant.

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Redirects here:

0xCC, 0xcc, INT 3, INT3, Int 3, Int3, Interrupt 3, X86-int.

References

[1] https://en.wikipedia.org/wiki/INT_(x86_instruction)

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