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The instruction that is used when either of the logical processors is idle is

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in Microprocessor by (39.4k points)
The instruction that is used when either of the logical processors is idle is

(a) HOLD

(b) HLDA

(c) HALT

(d) NONE

This question was addressed to me in class test.

The query is from Hyperthreading In Pentium topic in chapter Pentium 4 processor of Microprocessor

1 Answer

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by (49.2k points)
Right choice is (c) HALT

Explanation: An optimization may require the use of HALT instruction, when either of the two logical processors is idle.

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