Does decimal math use the FPU?
I would think that the answer is yes, but I’m not sure, since a decimal is not a floating point, but a fixed precision number.
I’m looking mostly for .NET, but a general answer would be useful too.
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Does decimal math use the FPU?
I would think that the answer is yes, but I’m not sure, since a decimal is not a floating point, but a fixed precision number.
I’m looking mostly for .NET, but a general answer would be useful too.
With regards to .NET and more specifically C#, no,
System.Decimaldoes not use the FPU because the type is emulated in software.Also,
System.Decimalis a floating point number, not a fixed precision number like commonly found in a database. The type is actually a decimal floating point that uses 10 for its base as opposed to a binary floating point (i.e.System.SingleorSystem.Double) which uses 2 as its base. It still has the same precision problems if you attempt to store a fraction that cannot be exactly represented, for example, 1/3.