It is common practice for programmers to create continuous test - and - loop code in order
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It is common practice for programmers to create continuous test - and - loop code in order to poll I/O devices or wait for interrupts to occur. Some processors provide an instruction ( WAIT or HALT ) that allows the processor to hibernate until an interrupt occurs. Why is the latter form more efficient and desirable?
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Efficiency of Using WAIT or HALT Instruction for Polling IO Devices When programmers create continuous testandloop code to poll IO devices or wait for ...View the full answer
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Related Book For 
Real Time Systems Design And Analysis
ISBN: 9780470768648
4th Edition
Authors: Phillip A. Laplante, Seppo J. Ovaska
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