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In unsigned number addition, the status of which bit is important?

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in Microcontroller by (14.6k points)
In unsigned number addition, the status of which bit is important?

(a) OV

(b) CY

(c) AC

(d) PSW

I have been asked this question in an interview for job.

My doubt stems from Arithmetic and Logic Instructions in portion 8051 Microcontroller of Microcontroller

1 Answer

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by (24.2k points)
Correct choice is (b) CY

Explanation: If unsigned numbers operations are involved, then the status of CY flag is important and in signed number operation the status of OV flag is important.

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