Interrupt flag information

The Interrupt flag (IF) is a flag bit in the CPU's FLAGS register, which determines whether or not the (CPU) will respond immediately to maskable hardware...

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...

preventing some interrupts from triggering, prohibition of execution of a class of "privileged" instructions. Additional status flags may bypass memory...

as well, such as more specialized flags, interrupt enable bits, and similar types of information. During an interrupt, the status of the thread currently...

If-then-else, a conditional statement in computer programming IF (x86 flag), the Interrupt Flag in the x86 processor architecture Information filter, or inverse...

automatically do a type-1 interrupt after each instruction executes. When the 8086 does a type-1 interrupt, it pushes the flag register on the stack. The...

Sapphire Rapids processors, the UIRET instruction always sets UIF (User Interrupt Flag) to 1. On Emerald Rapids and later processors, UIRET will set UIF to...

A raster interrupt (also called a horizontal blank interrupt) is an interrupt signal in a legacy computer system which is used for display timing. It is...

are used by address translation, CR 4-6 contain miscellaneous flags including interrupt masks and Extended Control Mode, and CR 8-14 contain the switch...

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...

Auxiliary carry flag (AF), Zero flag (ZF), Sign flag (SF), Trap flag (TF), Interrupt flag (IF), Direction flag (DF), and Overflow flag (OF). Also referred...

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...

used since then, except for an interruption for a few days in 1848. Since 1976, there have been two versions of the flag in varying levels of use by the...

result of an operation. Certain bits (such as the Carry, Interrupt-disable, and Decimal flags) may be explicitly controlled using set and clear instructions...

further increased by various control registers, including an interrupt flag register, an interrupt enable register and two Function Control Registers. Two...

initialization period of six clock cycles, after which it sets the interrupt request disable flag in the status register and loads the program counter with the...

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...

affect the application but are not directly user-visible, e.g. user-mode interrupt configuration). The user-state items are enabled by setting their associated...

Special bit load and bit store instructions use this bit. I Interrupt flag. Set when interrupts are enabled. The following address spaces are available:...

The flag of Wales (Welsh: Baner Cymru or Y Ddraig Goch, meaning 'the red dragon') consists of a red dragon passant on a green and white field. As with...

PxIE Port x interrupt enable. When this bit and the corresponding PxIFG bit are both set, an interrupt is generated. PxIFG Port x interrupt flag. Set whenever...

Intel 8080 with only two minor instructions added to support its added interrupt and serial input/output features. However, it requires less support circuitry...

the data loaded from the Refresh or Interrupt source registers. For both instructions, the Parity/Overflow flag (bit 2) is set according to the current...

8259 combines multiple interrupt input sources into a single interrupt output to the host microprocessor, extending the interrupt levels available in a...