METHOD AND DEVICE FOR GENERATING AN EXCEPTION

摘要

A floating point value can represent a number or something that is not a number (NaN). A floating point value that is a NaN having data field that stores information, such as a propagation count that indicates the number of times a NaN value has been propagated through instructions. A NaN evaluation instruction can determine whether one or more operands is a NaN operand of a particular type, and if so can generate a result that is a NaN of a different type. An exception can be generated based upon the NaN of the different type being provided as a resultant

主权项

1. A method comprising:
receiving an instruction at an execution unit of a data processor; and providing a resultant that is a NaN of a first type in response to determining during execution that a first operand of the instruction is a NaN of a second type.