What is a flag register in the 8086 microprocessor? Explain any four f

Question

What is a flag register in the 8086 microprocessor? Explain any four flags and their use. What is the need for a segment register in the 8086 microprocessor? Compute the physical address for the following {Segment Register: Offset} pairs in an 8086 microprocessor:

(i) CS: IP ABCD:AAFFh

(ii) DS:BX1FBH:99FFh

(iii) SS: SP EFFF:00ABh

28 Feb 2026

Answer :

Word Count : 247

In 8086 microprocessor, flag register is a 16-bit register used to indicate the status of arithmetic and logical operations performed by the ALU. Each flag represents a specific condition of the result. Some important flags include the Carry Flag (CF), which ______ ___ ______ __________ ______ ______ ______.
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