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* IEEE 754 floating point completion code, and implementation of thepvalchev2002-04-281-0/+5506
FP_C (Floating Point Control Quadword). From ross@NetBSD. Added a way to disable it with option NO_IEEE, which appears on the ramdisks to save space. This affects only programs compiled with -mieee, and what it essentially does is enabling infinities and NaNs, instead of generating SIGFPE on division by zero, overflow, etc. ok art, deraadt