Search results
Results from the WOW.Com Content Network
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 interrupts. [1] If the flag is set to 1 maskable interrupts are enabled. If reset (set to 0) such interrupts will be disabled until
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 program, an interrupt handler, to run instead. Hardware interrupts are used to handle events such as receiving data from a modem or network card , key presses, or mouse movements.
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 ...
The most significant byte (MSB) of the program counter (PC) is pushed onto the stack. The least significant byte (LSB) of the program counter is pushed onto the stack. The status register (SR) is pushed onto the stack. The interrupt disable flag is set in the status register. 65C816/65C802: PB is loaded with $00.
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 ...
1. Open the Windows Control Panel. 2. Click Programs. 3. Click DataMask by AOL. 4. Click Change/Remove, Add/Remove, or Uninstall. - If there is no entry in the Add/Remove Programs window for DataMask by AOL, contact our technical support team at datamaskhelp@aol.com. 5. Follow the on screen prompts. 6. Restart your computer to complete the ...
This means malware is unable to capture a screenshot of your computer screen. You are also unable to capture screenshots on your computer screen. To turn off this option, click the green check mark to change to a red X. You may turn this feature on or off at anytime.
The interrupt could arrive before the DMA write was complete, and the processor could read stale data from memory. [5] To prevent this race, interrupt handlers were required to read from the device to ensure that the DMA write had finished. This read had a moderate performance penalty. An MSI write cannot pass a DMA write, so the race is ...