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  2. Interrupt vector table - Wikipedia

    en.wikipedia.org/wiki/Interrupt_vector_table

    Each entry of the interrupt vector table, called an interrupt vector, is the address of an interrupt handler (also known as ISR). While the concept is common across processor architectures, IVTs may be implemented in architecture-specific fashions. For example, a dispatch table is one method of implementing an interrupt vector table.

  3. Interrupt handler - Wikipedia

    en.wikipedia.org/wiki/Interrupt_handler

    In computer systems programming, an interrupt handler, also known as an interrupt service routine or ISR, is a special block of code associated with a specific interrupt condition. Interrupt handlers are initiated by hardware interrupts, software interrupt instructions, or software exceptions , and are used for implementing device drivers or ...

  4. Interrupts in 65xx processors - Wikipedia

    en.wikipedia.org/wiki/Interrupts_in_65xx_processors

    Upon completion of the service routine, the RTI instruction would be used to return control to the program that made the operating system call. Note that the signature for BRK may be any value, whereas the signature for COP should be limited to the range $00-$7F. [2] The use of BRK and/or COP to request an operating system service means user ...

  5. Programmable interrupt controller - Wikipedia

    en.wikipedia.org/wiki/Programmable_interrupt...

    In computing, a programmable interrupt controller (PIC) is an integrated circuit that helps a microprocessor (or CPU) handle interrupt requests (IRQs) coming from multiple different sources (like external I/O devices) which may occur simultaneously. [1]

  6. Interrupt - Wikipedia

    en.wikipedia.org/wiki/Interrupt

    A hardware interrupt is a condition related to the state of the hardware that may be signaled by an external hardware device, e.g., an interrupt request (IRQ) line on a PC, or detected by devices embedded in processor logic (e.g., the CPU timer in IBM System/370), to communicate that the device needs attention from the operating system (OS) [7] or, if there is no OS, from the bare metal ...

  7. Vectored interrupt - Wikipedia

    en.wikipedia.org/wiki/Vectored_Interrupt

    In computer science, a vectored interrupt is a processing technique in which the interrupting device directs the processor to the appropriate interrupt service routine. This is in contrast to a polled interrupt system, in which a single interrupt service routine must determine the source of the interrupt by checking all potential interrupt ...

  8. Interrupt descriptor table - Wikipedia

    en.wikipedia.org/wiki/Interrupt_descriptor_table

    The interrupt descriptor table (IDT) is a data structure used by the x86 architecture to implement an interrupt vector table. The IDT is used by the processor to determine the memory addresses of the handlers to be executed on interrupts and exceptions .

  9. Parallax Propeller - Wikipedia

    en.wikipedia.org/wiki/Parallax_Propeller

    The design philosophy of the Propeller is that a hard real-time multi-core architecture negates the need for dedicated interrupt hardware and support in assembly. In traditional CPU architecture, external interrupt lines are fed to an on-chip interrupt controller and are serviced by one or more interrupt service routines. When an interrupt ...