Fujitsu MB90460 Series Hardware Manual page 68

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Overflow flag (V)
Set to "1" if a signed numeric value overflows because of an arithmetic calculation. Cleared to "0" if no
overflow occurs.
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Carry flag (C)
Set to "1" when there is an overflow from the MSB or an underflow from the LSB because of an arithmetic
calculation. Cleared to "0" when there is no overflow or underflow because of an arithmetic calculation.
CHAPTER 3 CPU
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