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Old 10th April 2007 | Show parent
Gear Maniac
Originally Posted by Justin Frankel View Post
Actually 80 bit floats are usually "long doubles"... the x86 FPU apparently internally uses an 80 bit format, but can load/store 32/64 bit floats as well..

As far as other architectures that support 64 bit floats, I know PPC does too...
my mistake, sorry. i forgot that both architectures "prefer/preferred" the 80bit double-extended format, but also support the standard ieee-754 64 bit double precision one too. AFAIK, SSE(2) still is built around the 80 bit format.