• Thumbnail for Interrupt
    called an interrupt handler (or an interrupt service routine, ISR) to deal with the event. This interruption is often temporary, allowing the software to resume...
    42 KB (5,480 words) - 23:40, 8 July 2024
  • specific interrupt condition. Interrupt handlers are initiated by hardware interrupts, software interrupt instructions, or software exceptions, and are used...
    13 KB (1,800 words) - 05:48, 22 February 2024
  • language instruction for x86 processors that generates a software interrupt. It takes the interrupt number formatted as a byte value. When written in assembly...
    4 KB (472 words) - 17:10, 11 June 2024
  • Thumbnail for Operating system
    after the interrupt is serviced. A software interrupt is a message to a process that an event has occurred. This contrasts with a hardware interrupt — which...
    72 KB (8,248 words) - 20:48, 9 August 2024
  • execute the BIOS interrupt calls in the Virtual 8086 mode, but only for OS booting) to access up to 4GB memory. In all computers, software instructions control...
    29 KB (3,319 words) - 17:50, 25 July 2024
  • 256 interrupt vectors and the use of the IDT is triggered by three types of events: processor exceptions, hardware interrupts, and software interrupts, which...
    9 KB (1,033 words) - 20:57, 3 July 2024
  • Thumbnail for Interrupt vector table
    in a table of interrupt vectors. Each entry of the interrupt vector table, called an interrupt vector, is the address of an interrupt handler (also known...
    5 KB (484 words) - 23:51, 19 February 2024
  • interrupts are enabled. The Interrupt flag does not affect the handling of non-maskable interrupts (NMIs) or software interrupts generated by the INT instruction...
    5 KB (652 words) - 20:16, 18 December 2022
  • INT 13H (redirect from Interrupt 13h)
    extensions. INT is an x86 instruction that triggers a software interrupt, and 13hex is the interrupt number (as a hexadecimal value) being called. Modern...
    30 KB (1,929 words) - 21:20, 23 May 2023
  • all handle interrupts in a similar fashion. There are three hardware interrupt signals common to all 65xx processors and one software interrupt, the BRK...
    29 KB (3,677 words) - 09:48, 1 December 2023
  • events. Installing a software interrupt vector allows it to be called by the currently running program. Installing a timer interrupt handler allows a TSR...
    13 KB (1,805 words) - 03:54, 26 July 2024
  • In a computer, an interrupt request (or IRQ) is a hardware signal sent to the processor that temporarily stops a running program and allows a special...
    10 KB (1,312 words) - 07:53, 1 February 2024
  • computing, a programmable interrupt controller (PIC) is an integrated circuit that helps a microprocessor (or CPU) handle interrupt requests (IRQs) coming...
    4 KB (442 words) - 00:32, 11 November 2023
  • exceptions. For some IA-32 versions of the kernel, one example of such a software interrupt handler (of which there are many) is in its IDT table entry 2E16 (hexadecimal;...
    17 KB (1,412 words) - 12:56, 2 August 2024
  • In computing, a non-maskable interrupt (NMI) is a hardware interrupt that standard interrupt-masking techniques in the system cannot ignore. It typically...
    8 KB (994 words) - 21:50, 30 January 2024
  • DOS API (redirect from DOS interrupt call)
    DOS-compatible operating systems. Most calls to the DOS API are invoked using software interrupt 21h (INT 21h). By calling INT 21h with a subfunction number in the...
    20 KB (1,223 words) - 12:14, 19 September 2023
  • no possibility of conflicting with any existing software. A special BIOS routine – software interrupt 0x15, subfunction 0x85 – was added to signal the...
    6 KB (701 words) - 16:52, 28 June 2024
  • destination operands are swapped, among many other differences.) Using the software interrupt 21h instruction to call the MS-DOS operating system for output to...
    54 KB (6,902 words) - 01:59, 10 July 2024
  • Thumbnail for System call
    implement this is to use a software interrupt or trap. Interrupts transfer control to the operating system kernel, so software simply needs to set up some...
    19 KB (2,282 words) - 09:09, 7 August 2024
  • contexts Software interrupt, an interrupt routine in a computer operating system SWI, an assembler mnemonic to perform a software interrupt on the ARM...
    1 KB (143 words) - 04:15, 4 January 2024
  • computing, Intel's Advanced Programmable Interrupt Controller (APIC) is a family of programmable interrupt controllers. As its name suggests, the APIC...
    17 KB (1,942 words) - 03:22, 16 July 2024
  • indicated in hardware by the registers in a programmable interrupt controller, or in software by a bitmask or integer value and source code of threads...
    4 KB (643 words) - 09:28, 8 July 2023
  • shorthand for interrupt INT (x86 instruction), an assembly language instruction for the x86 architecture for generating a software interrupt abbreviation...
    2 KB (267 words) - 03:04, 3 September 2023
  • Thumbnail for Top (software)
    | | | | '------. <user> <system> <nice> <idle> <IOWait> <hardware/software interrupt> <steal time> MiB Mem : 1031911.+total, 368915.2 free, 172285.0 used...
    11 KB (1,301 words) - 12:11, 31 July 2024
  • Thumbnail for Real-time clock
    (often less than 1 ppm). Software can do the math to make these into accurate RTCs. The hardware timer can produce a periodic interrupt, e.g. 50 Hz, to mimic...
    17 KB (1,993 words) - 16:34, 23 July 2024
  • level, such as interrupts generated by hardware devices, software interrupt instructions, or state changes in polling. On this level, interrupt handlers and...
    12 KB (1,337 words) - 12:28, 23 May 2024
  • INT 10H (redirect from Interrupt 0x10)
    for BIOS interrupt call 10hex, the 17th interrupt vector in an x86-based computer system. The BIOS typically sets up a real mode interrupt handler at...
    7 KB (406 words) - 11:08, 28 February 2024
  • Thumbnail for Motorola 68000
    from exception, i.e. an interrupt), TRAP (trigger a software exception similar to software interrupt), CHK (a conditional software exception) Branch: Bcc...
    67 KB (7,214 words) - 15:38, 4 August 2024
  • conditions. PCI Express permits devices to use these legacy interrupt messages, retaining software compatibility with PCI drivers, but they are required to...
    13 KB (1,535 words) - 16:49, 7 May 2024
  • is usually not changed for a converted program), and executing a software interrupt, INT #224. The result is returned in the AL register if it is a byte...
    16 KB (1,558 words) - 14:33, 28 May 2023