GameBoy\Opcode::opcode39 PHP Method

    public static function opcode39(Core $core)
    {
        $temp_var = $core->registerA;
        if ($core->FCarry) {
            $temp_var |= 0x100;
        }
        if ($core->FHalfCarry) {
            $temp_var |= 0x200;
        }
        if ($core->FSubtract) {
            $temp_var |= 0x400;
        }
        $core->registerA = ($temp_var = $core->DAATable[$temp_var]) >> 8;
        $core->FZero = ($temp_var & 0x80) == 0x80;
        $core->FSubtract = ($temp_var & 0x40) == 0x40;
        $core->FHalfCarry = ($temp_var & 0x20) == 0x20;
        $core->FCarry = ($temp_var & 0x10) == 0x10;
    }