R4400 Microprocessor User's Manual
7. Floating-Point Exceptions
This chapter describes FPU floating-point exceptions, including FPU exception types, exception trap processing, exception flags, saving and restoring state when handling an exception, and trap handlers for IEEE Standard 754 exceptions.
A floating-point exception occurs whenever the FPU cannot handle either the operands or the results of a floating-point operation in its normal way. The FPU responds by generating an exception to initiate a software trap or by setting a status flag.
Chapter Contents
- 7.1 - Exception Types
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- 7.2 - Exception Trap Processing
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- 7.3 - Flags
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- 7.4 - FPU Exceptions
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- 7.5 - Saving and Restoring State
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- 7.6 - Trap Handlers for IEEE Standard 754 Exceptions
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Copyright 1996, MIPS Technologies, Inc. -- 21 MAR 96
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