• 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 (492 words) - 01:28, 4 November 2024
  • 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...
    8 KB (1,201 words) - 01:51, 20 May 2025
  • usually dispatched via a hard-coded table of interrupt vectors, asynchronously to the normal execution stream (as interrupt masking levels permit), often using...
    13 KB (1,799 words) - 05:59, 15 April 2025
  • looking it up in a table of ISR starting-point addresses (called "interrupt vectors") in memory: the Interrupt vector table (IVT). An interrupt is invoked by...
    29 KB (3,319 words) - 17:50, 25 July 2024
  • while in real mode (see interrupt vector). It is therefore entirely possible to use a far-call instruction to start the interrupt-function manually after...
    4 KB (478 words) - 16:42, 24 July 2025
  • Thumbnail for Interrupt
    distinct interrupt routine for each type of interrupt (or for each interrupt source), often implemented as one or more interrupt vector tables. To mask...
    46 KB (5,726 words) - 14:31, 9 July 2025
  • Thumbnail for Operating system
    placed in a system table.) Read the integer from the data bus. The integer is an offset to the interrupt vector table. The vector table's instructions will...
    70 KB (8,177 words) - 07:24, 23 July 2025
  • Thumbnail for BIOS
    below address 0x00400 contains the interrupt vector table. BIOS POST has initialized the system timers, interrupt controller(s), DMA controller(s), and...
    89 KB (9,560 words) - 21:21, 19 July 2025
  • Thumbnail for Motorola 68000
    "exception table" (interrupt vector table interrupt vector addresses) is fixed at addresses 0 through 1023, permitting 256 32-bit vectors. The first vector (RESET)...
    68 KB (7,318 words) - 03:58, 29 July 2025
  • starting at address 0, is the permanent, immovable location of the interrupt vector table.) So, the actual amount of memory addressable by the 80286 and later...
    10 KB (1,508 words) - 10:08, 25 June 2024
  • identically to an interrupt: the processor halts execution of the current program, looks up the interrupt handler in the interrupt vector table for that exception...
    17 KB (1,803 words) - 07:21, 30 July 2025
  • space for the interrupt vector table (IVT) if they run in real mode. A similar technique of using the zero page for hardware related vectors was employed...
    12 KB (1,459 words) - 15:55, 2 August 2025
  • Thumbnail for Intel 8086
    8-bit interrupt number from the bus. This number is multiplied by four to point to the associated interrupt service routine in the vector table. Maskable...
    58 KB (5,570 words) - 03:00, 4 August 2025
  • is booted from an infected sector, Form goes resident, hooks the interrupt vector table, and runs the original boot sector which it has hidden in an area...
    5 KB (594 words) - 01:31, 8 March 2025
  • that had previously altered the same interrupt vector. Cascade with other TSRs by calling the old interrupt vector. This can be done before or after they...
    13 KB (1,802 words) - 03:34, 7 July 2025
  • Thumbnail for A20 line
    bytes of the interrupt service routine entry point reserved for INT 30h and the first byte of INT 31h in the x86 real mode interrupt vector table). However...
    42 KB (4,913 words) - 19:42, 31 July 2025
  • reset. The reset vector for 68000 processor family is 0x00000000 for Initial Interrupt Stack Register (IISR; Not really a reset vector and is used to initialize...
    9 KB (1,028 words) - 19:02, 4 September 2024
  • SENDUIPI is an index to pick an entry from the UITT (User-Interrupt Target Table, a table specified by the new UINTR_TT and UINT_MISC MSRs.) On Sapphire...
    265 KB (15,000 words) - 22:03, 26 July 2025
  • IVT may refer to: Interrupt vector table, a memory construct in some processors Intel Virtualization Technology, a computer processor feature to simplify...
    945 bytes (129 words) - 17:21, 3 July 2023
  • on systems using the shared library concept, the interrupt vector table or the import descriptor table can be modified in memory. Essentially these tactics...
    25 KB (2,981 words) - 03:42, 17 July 2025
  • section that starts up the modules. Other well-known examples are the interrupt vector table and the main loop. Some functions inherently have mixed semantics...
    4 KB (476 words) - 22:51, 11 July 2025
  • the Interrupt Stack Table (IST), which also resides in the TSS and contains logical (segment+offset) stack pointers. If an interrupt descriptor table specifies...
    10 KB (1,543 words) - 08:58, 23 June 2025
  • between LAPICs. A single LAPIC may support up to 224 usable interrupt vectors from an I/O APIC. Vector numbers 0 to 31, out of 0 to 255, are reserved for exception...
    17 KB (2,024 words) - 14:59, 15 June 2025
  • The interrupt disable flag is set in the status register. 65C816/65C802: PB is loaded with $00. PC is loaded from the relevant vector (see tables). The...
    29 KB (3,677 words) - 13:05, 21 December 2024
  • Thumbnail for Epson HX-20
    equivalent to the BIOS in modern PCs. ROM #0 also contains the interrupt vector table at FFF0-FFFF. FFFE-FFFF determines what the program counter should...
    17 KB (1,553 words) - 02:06, 4 August 2025
  • INT 13H (redirect from Interrupt 13h)
    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...
    30 KB (1,965 words) - 15:55, 7 July 2025
  • Thumbnail for AArch64
    128-bit translation tables (ARMv9 only). Scalable Matrix Extension 2 (SME2) (ARMv9 only). Multi-vector instructions. Multi-vector predicates. 2b/4b weight...
    40 KB (3,505 words) - 10:26, 11 June 2025
  • Thumbnail for WDC 65C02
    addressing modes, including zero page addressing. Vector pull (VPB) output indicates when interrupt vectors are being addressed. Memory lock (MLB) output...
    37 KB (4,396 words) - 08:22, 30 July 2025
  • Thumbnail for Tandy Graphics Adapter
    first 128 KB of the address space. The first bank overlaps the interrupt vector table of the x86 CPU and the data area used by the BIOS, so it is generally...
    19 KB (2,119 words) - 14:07, 4 July 2025
  • into the AVX512 vector register file rather than the GPR register file. The selected AVX512 vector register is then interpreted as a vector of indexes, causing...
    98 KB (4,641 words) - 02:18, 19 June 2025