Posted on November 23, 2012 at 09:54''With IAR you'd need to link against a suitable library with the level of support you need''
And similarly for other
embedded toolsets.
Using floating-point brings very large burdens in terms of execution speed and code size - which is why most
embedded toolsets will
not enable floating-point support
unless you specifically request it.
Many (most?) calculations in embedded systems can be done perfectly well - and at vastly reduced overhead - with
integer arithmetic and a little thought. Or, perhaps, with fixed-point.
So a more fundamental question migth be:
why do you feel the need for floating point...?
A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
