INT 73 C - IRQ11 - RESERVED                                                     
Notes:	may be masked by setting bit 3 on I/O port A1h
	DOS 3.3+ revectors IRQ11 to a stack-switching routine unless STACKS=0
	  has been set in CONFIG.SYS.  MS/PC-DOS use the IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. Interrupt Sharing
	  Protocol (see #02568) when hooking this IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated.
SeeAlso: INT 5B"IRQ11",MEM 0040h:006Bh