NV: no overflow OV: overflow
UP: up DN:down
DI: disable interrupt EI: enable interrupt
PL: plus NG: negative
NZ: no zero ZR: zero
NA: no assistant carry AC: auxiliary carry
PO: parity odd PE: parity even
NC: no carry CY: carry
NV: no overflow OV: overflow
UP: up DN:down
DI: disable interrupt EI: enable interrupt
PL: plus NG: negative
NZ: no zero ZR: zero
NA: no assistant carry AC: auxiliary carry
PO: parity odd PE: parity even
NC: no carry CY: carry