The OP asked for fixed-point arithmetic, not floating point.
The only two libraries I can recommend are the one included in
SystemC (very complete
in terms of overflow/quantization control, but slow) and one offered
as open source by Mentor Graphics
at http://www.mentor.com/products/esl/high_level_synthesis/
ac_datatypes.cfm.
This second one is a very useful subset of the SystemC library and is
_very_ fast.
Hope this helps,
Maurizio
On Dec 31, 2007, at 7:31 AM, Tom St Denis wrote:
Cristea Bogdan wrote:
Is there a library implementing fast fixed-point operations
(addition,
multiplication, comparisons)? I have used till now a C++ class, but
the fixed-point operations are very slow wrt to their floating-point
counterparts.
Slow on what? Most big cpus nowadays have very fast FPUs. On
something like an ARM without an FPU fixed point should be quite a
bit faster....
