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The number of double words that can be packed into 64-bit register using packed double word is

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in Microprocessor by (39.4k points)
The number of double words that can be packed into 64-bit register using packed double word is

(a) 2

(b) 4

(c) 6

(d) 8

The question was posed to me in an internship interview.

This is a very interesting question from MMX Data Types, Wrap-around and Saturation Arithmetic, Multimedia Application Programming, Pentium III (P-III) CPU topic in portion Recent Advancements in Microprocessor Architecture of Microprocessor

1 Answer

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by (49.2k points)
Right choice is (a) 2

Easy explanation: Using packed double word, two double words can be packed into 64-bit.

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