Patent ID: 9684515
Date: 2017-06-20
CPC Classifications: G06F

Claim:
1. A method for generating a condition code that depends upon a numerical output of a floating point operation for a processing pipeline, the method comprising: determining a classification for the floating point operation of a received instruction, wherein determining the classification includes determining that the floating operation of the received instruction is a convert to integer operation with an operand; calculating, in response to the classification and using condition determination logic, a value for the condition code by inferring from data that is available from the processing pipeline before the numerical output is available, wherein calculating the condition code includes determining that the operand is a valid, non-zero, number and detecting that the convert to integer operation will not result in an overflow condition by detecting that an exponent and alignment of the operand are outside of a range of values; and providing the value for the condition code to branch decision logic of the processing pipeline.