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After executing MOV A, #80H, ADD A, #7FH, what are the values in A, Carry (C), a...

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After executing MOV A, #80H, ADD A, #7FH, what are the values in A, Carry (C), and Overflow (OV) flags?

A=0xFF, C=0, OV=0 (80H+7FH=FFH: no unsigned overflow so C=0, signed result -128+127=-1 is valid so OV=0)

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A=0x7F, C=1, OV=1 (both unsigned and signed overflow occurred)

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A=0xFE, C=0, OV=0 (simple addition without overflow)

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A=0xFF, C=1, OV=0 (result fits but carry indicates 9-bit sum)

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