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The instruction in which both multiplication and addition are performed is

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The instruction in which both multiplication and addition are performed is

(a) PAND

(b) PMULHW

(c) PADD

(d) PMADDWD

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Question is taken from MMX Instruction Set in section Recent Advancements in Microprocessor Architecture of Microprocessor

1 Answer

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Right answer is (d) PMADDWD

Best explanation: PMADDWD is an important multimedia instruction, which multiplies the four signed words of the destination operand, with four signed words of source operand. This results in 32-bit double words which are added, and the result is stored in the higher double word of the destination operand.

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