A seat module for an aircraft passenger includes a seat including a horizontal squab and a backrest, and a separation panel extending along at least one side of the seat. In this invention 16-bit instructions and 32-bit instructions can coexist in the same fetch packet. A pseudo-running time is described by incrementing the subcode time in accordance with a pseudo-tempo, which is different from an actual tempo, the actual tempo representing a tempo in accordance with the actual running time.