On 21 Dec 2009, at 6:59am, Roger Binns wrote: > Simon Slavin wrote: >> I assume one would use an existing Open C library for doing math on >> that new type of data, > > That would be considerably slower than builtin CPU instructions. You > also have the issue of type conversions - eg adding one type of number > to another involves conversion plus semantics (over/underflow, > precision, various other pedantries). [In case it isn't clear I am > referring to processors that implement the -2008 flavoured instructions > in addition to -1985 ones.]
Showing my ignorance of C here. Does C use proper IEE755 maths when you do mundane things like add two floats together ? I assumed it compiled down to simple CPU calls which were faster than IEE755 but not as clever with things like NaN. Simon. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
