INT 43 - Z100 - Master 8259 - Slave 8259 input                                  
Note:	slave runs in special fully nested mode
SeeAlso: INT 42"Z100",INT 44"Z100"
                                                                                

INT 43 - TI Professional PCIBM PC - IRQ3 - TIMER1 25ms INTERVAL INTERRUPT
SeeAlso: INT 0B"IRQ3",INT 42"TI Professional",INT 44"TI Professional"
SeeAlso: INT 58"TI Professional"