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ABBREVIATIONS

FLAG ON OFF
Carry
Sign
Zero
Parity
C (carry)
M (minus)
Z (zero)
PE (even)
NC (no carry)
P (plus)
NZ (non zero)
PO (odd)

flag changed functionally according to operation /\ logical AND
O flag is set to zero \/ inclusive OR
1 flag is set to one -\/- exclusive OR
? flag is set randomly by operation != not equal to
X flag is special case, see accompanying note on that page
[V] P/V flag holds overflow
[P] P/V flag holds parity
(Note: bit positions 3 and 5 are always random.)