Exception Status Flags The following exception status flags are supported in operations with CFloat8, SHP, and UHP operands and results: Invalid, Denormal, Overflow and Underflow. An arithmetic operation with any denormal operand will set the denormal exception flag, while an arithmetic operation with any NaN operand or no useful definable result, as specified by the IEEE 754R standard, will set the invalid exception flag. Any arithmetic operation with CFloat8, SHP, and UHP destination that overflows or underflows, will set the overflow and underflow exception flags respectively. The response to the setting of the exception flags is implementation dependent. 09 Tesla Dojo Technology — A Guide to Tesla’s Configurable Floating Point Formats & Arithmetic