5 ms·
While it does include many sizes, I don't think 80-bit is included. The sizes mentioned in IEEE754-2008 are 16, 32, 64 and then multiples of 32 that are greater
by tspiteri 8y ago
While it does include many sizes, I don't think 80-bit is included. The sizes mentioned in IEEE754-2008 are 16, 32, 64 and then multiples of 32 that are greater or equal to 128 (96 is not included).
- greglindahl 8y agoHere's a whole Wikipedia section about extended formats: https://en.wikipedia.org/wiki/Extended_precision#IEEE_754_extended_precision_formats https://en.wikipedia.org/wiki/Extended_precision#IEEE_754_ex... Now I totally agree that people should almost always not be storing these things on disk or passing them across the network, but they were RECOMMENDED by the IEEE committee, and that's why Intel and Motorola implemented them. A kinda bad idea, bad implementation choices, but recommended.
- tspiteri 8y agoYou're right, I confused the interchange formats with extended and extendable precisions. And the standard only recommends the extended and extendable precisions "for extending the precisions used for arithmetic beyond the basic formats", not for interchange.