[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: FOSDEM thoughts

Roman Zippel wrote:
> Hi,
> On Tuesday 4. March 2008, Wouter Verhelst wrote:
>> A hybrid port would just emit two opcodes in such a case, of course.
>> This will indeed degrade performance slightly.
> The incompabilities are all over the place, we would be basically restricted 
> to a very basic instruction set and due to the floating point differences it 
> wouldn't even be compatible with the current ABI. I'm not overly optimistic 
> that a few optimized libraries would save us, e.g. scripting languages are 
> already slow enough right now.
With respect to Floating Point there are differences within the Coldfire
V4 family.  The M547x/M548x have the FPU you have been discussing.  The
M5445x doesn't have any FPU hardware and requires everything to be
compiled with softfloat.


Reply to: