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There are 2 approaches to handle this situation,
1.Disable interrupts while an interrupt is being processing
in this approach, when the processor is being processing an interrupt, the processor ignores any new interrupt signal and these new signals have to wait in a queue and processor will check after the currently processing interrupt is finished.
2. Defining priorities for interrupts
in this case, each interrupt has a priority value. When the processor is being executing an interrupt, another interrupt can interrupt and gain the processor if the second interrupt has a higher priority than first one
Source- William Stallings, operating systems Sorry, the word you are looking for is not in the Database
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What is multiple interrupts?
Multiple interrupts refers to errors that may occur when a system is operational. The interrupts may be caused by a single error repeatedly or by different errors.
What is an interrupt How are multiple interrupts dealt with?
An interrupt is a request to execute different code, initiated usually by a hardware condition such as data-ready or operation-complete, but also sometimes initiated by the running program. The processor saves its immediate state, IP and Flags, on the stack and loads a new IP value, effectively doing a CALL sequence to some interrupt service routine. The routine does whatever processing is required, and returns, restoring the running program. Under normal conditions, the interrupt response sequence disables further interrupts, so that recursive entry does not occur. The service routine reenables interrupts just before returning, so that pending or further interrupts can be processed. If multiple interrupt levels are to be supported, such as in the 8085, the interrupt service routine can set the interrupt mask, blocking the level in progress, and then reenable interrupts. This way, a second interrupt on a higher level can be processed while the first interrupt is being processed. On return, the lower level interrupt disables interrupts, restores the mask, and then reenables interrupts prior to return.
What are the various type of interrupts?
There are three types of interrupts.... 1. internal Interrupts 2. External Interrupts 3. Software Interrupts... read more
How many interrupts in?
it has 256 interrupts ..
What is interrupts and list classes of interrupts in operating system?
An interrupt is an event that alters the sequence in which the processor execute instructions. It is generated by hardware of computer system. Classes of interrupt:- IBM processor has six types of interrupts. * svc interrupt(supervisor call) *input/output interrupts *external interrupts *Restart interrupts *Program check interrupt *Machine check interrupts
No of interrupts of 8051 excluding reset?
1.The excluding interrupts are INT0 & INT1 2.The Timer0 and Timer1 are interrupts are generated by TF0 and TF1
Different between maskable and non-maskable interrupt?
Maskable interrupts trigger events are not always important and so the programmer can decide that the event should not cause a program to jump. Nonmaskable interrupts can not be ignored by the programmer and therefore they have absolute priority.
How does multiple sclerosis stop nerves?
In multiple sclerosis, the immune system destroys the myelin sheath (sort of like wire insulation) surrounding the nerves and in doing so interrupts the signals along the path of the nervous system.
What is EI and DI instructions?
The Enable Interrupts (EI) and Disable Interrupts (DI) instructions allow the MP to permit or deny interrupts under program control.
How do you spell inturupes?
The likely word is the verb form "interrupts."
What are interrupts initiated by instructions called?
Those would be software interrupts. Interrupts initiated by the hardware would be hardware interrupts. While the socket a mouse is plugged into would use a hardware interrupt, a mouse driver would use a software interrupt.
What chip controls hardware interrupts?
Hardware interrupts can be controlled by the 8259 Programmable Interrupt Controller
