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Originally Posted by Justin Frankel  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.