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The instruction in which adjustment is made before performing the operation is

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The instruction in which adjustment is made before performing the operation is

(a) AAA

(b) AAS

(c) AAM

(d) AAD

This question was posed to me during an interview.

Asked question is from Instruction Set of 8086/8088 topic in division 8086/88 Instruction Set and Assembler Directives of Microprocessor

1 Answer

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The correct option is (d) AAD

For explanation: The AAD instruction converts two unpacked BCD digits in AH and AL to the equivalent binary number in AL. This adjustment must be made before dividing the two unpacked BCD digits.

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