7.4 FPU Exceptions

Division-by-Zero Exception (Z)


The Division-by-Zero exception is signaled on an implemented divide operation if the divisor is zero and the dividend is a finite nonzero number. Software can simulate this exception for other operations that produce a signed infinity, such as ln(0), sec(p/2), csc(0), or 0-1.

Trap Enabled Results: The result register is not modified, and the source registers are preserved.

Trap Disabled Results: The result, when no trap occurs, is a correctly signed infinity.



Copyright 1996, MIPS Technologies, Inc. -- 21 MAR 96

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