What is flag, bus?

Answer Posted / naveen rathee

Flags are nothing but a group of individual Flip-flops. The
flags are mainly associated with arithmetic and logic
operations. The flags will show either a logical (0 or 1)
(i.e.) a set or reset depending on the data conditions in
accumulator or various other registers. A flag is actually
a latch which can hold some bits of information. It alerts
the processor that some event has taken place.

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