INT 75 C - IRQ13 - MATH COPROCESSOR EXCEPTION (ATIBM PC AT and up)
Desc:	redirected to INT 02 by the BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly., for compatibility with the PCIBM PC
Notes:	may be masked by setting bit 5 on I/O port A1h
	not all clones wire the coprocessor to generate this IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated.; some systems
	  generate an NMIsee Non-Maskable Interrupt (see INT 02) or assert the -ERROR pin on the CPU(Central Processing Unit) The microprocessor which executes programs on your computer.
	  (see INT 10"COPROCESSOR")
	under DESQview, only the INT 15h vector and BASIC(Beginner's All-purpose Symbolic Instruction Code) A programming language originally designed as a means of teaching FORTRAN.  There are many variations of BASIC with differing capabilities; the majority are interpreted but compiled BASIC is becoming more popular.	All genuine IBMInternational Busiuness Machines personal computers (including the latest PS/2IBM PS/2, any model models) come equipped with a cassette-based BASIC interpreter in ROM. segment address (the
	  word at 0000h:0510h) may be assumed to be valid for the handler's
	  process
SeeAlso: INT 10"COPROCESSOR",INT 5D"IRQ13",MEM 0040h:006Bh