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CHAPTER 3 CPU
G
Zero flag (Z)
If all the bits of the operation result are "0", this flag is set to "1". If any 1 bit is "1", the flag is cleared to
"0".
G
Overflow flag (V)
If an overflow occurs as a signed numeric value at the execution of operation, this flag is set to "1". If no
overflow occurs, the flag is cleared to "0".
G
Carry flag (C)
If a carry from the MSB or to the least significant bit (LSB) occurs at the execution of operation, this flag is
set to "1". If no carry occurs, this flag is cleared to "0".
Note:
For the state of the condition code register (CCR) during instruction execution, refer to the
Programming Manual.
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