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 sources, a slow and relatively laborious process.
Implementation
Vectored interrupts are achieved by assigning each interrupting device a unique code, typically four to eight bits in length.[1] When a device interrupts, it sends its unique code over the data bus to the processor, telling the processor which interrupt service routine to execute.
gollark: ++delete <@319753218592866315> (acknowledgement of floor(2π))
gollark: ++delete <@263493613860814848> (acknowledgement of floor(2π))
gollark: STOP ACKNOWLEDGING IT
gollark: !time <@319753218592866315>
gollark: !time <@!135204578986557440>
References
- Hamacher, Carl (2002). "INPUT/OUTPUT Organization". Computer Organization (5th ed.). McGraw Hill. p. 214. ISBN 0072320869.
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