┌──┬──┬──┬──┬──┬──┬──┬──┐ │OF│DF│IF│SF│ZF│AF│PF│CF│ ├──┼──┼──┼──┼──┼──┼──┼──┤ │? │ │ │* │* │* │* │* │ └──┴──┴──┴──┴──┴──┴──┴──┘
The AF and CF flags are set if there is a decimal borrow, cleared if there is no decimal borrow; the SF, ZF and PF flags are set according to the result. The OF flag is undefined.