C runtime error

[utzoo!decvax!ucbvax!unix-wizards]

>From mike at brl Mon Aug 31 17:38:31 1981
In the 1977-78 edition of the 11/70 Processor Handbook,
Page 8-9, Chapter 8.6 "Floating Exception Code and Address Registers":

One interrupt vector is assigned to take care of all floating point
exceptions (location 0244).  The seven possible errors are coded in the four
bit FEC (Floating Exception Code) register as follows:

	2	Floating Op code error
	4	Floating divide by zero
	6	Floating (or double) to integer conversion error
	8	Floating overflow
	12	Floating undefined variable
	14	Maintenance trap

You can find this value by running PFE (I).  Also, using ADB on your
core dump might prove helpful.

Perhaps UNIX-WIZARDS is not the right place to send questions like this?
				-Mike