Question:medium

After ADI 01H when A = FFH, the accumulator and carry flags are :

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$FFH$ is the maximum value for an 8-bit register (255). Adding even $1$ to it will always cause it to "roll over" to $00H$ and set the Carry flag.

Updated On: Jun 6, 2026

A = 00H, CY = 0
A = 00H, CY = 1
A = 01H, CY = 1
A = FEH, CY = 1

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The Correct Option is B

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Top Questions on Microprocessors and Interfacing

In case of DMA, after the completion of the transfer, the processor is required to be notified of the completion. This is done through.
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Match List I with List II.

List I	List II
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