Intel 8086 (iAPX86) Question:

What does EU do?

Basically,8086 is divided into two part. 1.BIU. 2.EU Execution Unit(EU)Fetch the intruction from Queue(memory(6 byte) in BIU.) and execute it.

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Which microprocessor accepts the program written for 8086 without any changes?	Which Flags can be set or reset by the programmer and also used to control the operation of the processor?