Architectures and Processors forum ABS (absolute value) function

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ABS (absolute value) function

thewal over 8 years ago

i want to Implement an ABS (absolute value) function for a registered value using only two instructions.

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daith over 8 years ago +1 verified

See How to get absolute value of a 32-bit signed integer as fast as possible? Where there's a couple of ways plus also saturating abs. Using SIMD one can do a number of ABS's in parallel.