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17th IEEE Symposium on Computer Arithmetic (ARITH'05)
Some Functions Computable with a Fused-Mac
Cape Cod, Massachusetts, USA
June 27-June 29
ISBN: 0-7695-2366-8
ASCII Text
x 
 
Sylvie Boldo, Jean-Michel Muller, "Some Functions Computable with a Fused-Mac," Computer Arithmetic, IEEE Symposium on, pp. 52-58, 17th IEEE Symposium on Computer Arithmetic (ARITH'05), 2005.
 
 
BibTex
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@article{ 10.1109/ARITH.2005.39,
author = {Sylvie Boldo and Jean-Michel Muller},
title = {Some Functions Computable with a Fused-Mac},
journal ={Computer Arithmetic, IEEE Symposium on},
volume = {0},
year = {2005},
issn = {1063-6889},
pages = {52-58},
doi = {http://doi.ieeecomputersociety.org/10.1109/ARITH.2005.39},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - CONF
JO - Computer Arithmetic, IEEE Symposium on
TI - Some Functions Computable with a Fused-Mac
SN - 1063-6889
SP52
EP58
A1 - Sylvie Boldo,
A1 - Jean-Michel Muller,
PY - 2005
KW - null
VL - 0
JA - Computer Arithmetic, IEEE Symposium on
ER -
 
Sylvie Boldo, Laboratoire LIP (CNRS/ENS Lyon/Inria/Université Lyon 1)
Jean-Michel Muller, Laboratoire LIP (CNRS/ENS Lyon/Inria/Université Lyon 1)
The fused multiply accumulate instruction (fused-mac) that is available on some current processors such as the Power PC or the Itanium eases some calculations. We give examples of some floating-point functions (such as ulp (x) or Nextafter (x, y)), or some useful tests, that are easily computable using a fused-mac. Then, we show that, with rounding to the nearest, the error of a fused-mac instruction is exactly representable as the sum of two floating-point numbers. We give an algorithm that computes that error.
Citation:
Sylvie Boldo, Jean-Michel Muller, "Some Functions Computable with a Fused-Mac," arith, pp.52-58, 17th IEEE Symposium on Computer Arithmetic (ARITH'05), 2005
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