/** Entscheidungstabelle */
struct decisionTable
{
    uint16_t mask;      /**< Positiv-Werte */
    uint16_t filter;    /**< Nicht-dontcare-Werte */
};


#define XX 0

/** Entscheidungstabelle Dekoder Schalterstellungen */
const struct decisionTable rqstIn[] =
{
    [val_a]                = {XX    | XX    | XX    | in_e  ,    0      | 0     | 0     | in_e },
    [val_b]                = {in_l  | 0     | 0     | 0     ,    in_l   | in_d1 | in_d2 | in_e },
    [val_c]                = {0     | XX    | XX    | 0     ,    in_l   | 0     | 0     | in_e },
    [val_d]                = {in_l  | in_d1 | 0     | 0     ,    in_l   | in_d1 | in_d2 | in_e },
    [val_e]                = {in_l  | 0     | in_d2 | 0     ,    in_l   | in_d1 | in_d2 | in_e },

    /** D1- und D2-Signal gleichzeitig aktiv -> Verkabelungsfehler */
    [val_error0]           = {XX    | in_d1 | in_d2 | XX    ,    0      |in_d1  | in_d2 | 0    },
};