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Which of the following is not a newly added instruction of 80386, that are not present in 80286?

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Which of the following is not a newly added instruction of 80386, that are not present in 80286?

(a) bit scan instructions

(b) bit test instructions

(c) shift double instructions

(d) none of the mentioned

The question was asked in final exam.

The question is from Enhanced Instruction Set of 80386 topic in chapter 32-bit Processors-80386, 80387 and 80486 of Microprocessor

1 Answer

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by (49.2k points)
Right option is (d) none of the mentioned

Easy explanation: The newly added instructions of 80386 are categorized into

1. bit scan instructions

2. bit test instructions

3. conditional set byte instructions

4. shift double instructions

5. control transfer via gates instructions.

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