4E INT 4E - Z100 - Slave 8259 - S100 vectored line 6
4E00 INT 4E - TI Professional PC - TIME-OF-DAY CLOCK - SET BIOS DATE
4E01 INT 4E - TI Professional PC - TIME-OF-DAY CLOCK - SET BIOS TIME
4E02 INT 4E - TI Professional PC - TIME-OF-DAY CLOCK - GET BIOS DATA AND TIME