m68040 FPSP question

Chris Johns cjohns at cybertec.com.au
Wed Feb 25 04:22:14 UTC 2004

Till Straumann wrote:
> Again some nameclashes:
> FPSP exports a bunch of name-clash prone symbols,
> two of which actually clash with libm symbols:
>  'round' and 'sinf'
> The latter returns 'signed infinity' (FPSP)
> or a single precision sin()  (libm) !
> What to do?

Is the FPSP the software emulation of the instructions missing from the 
68020 ?

If so then I suggest you consider using a -m68040 for newlib (which 
should already be done) and RTEMS. This removes the need for any 
emulation software.

IMO this library is only needed if you have a binary which needs to be 
moved from the 68020 to the 68040.

I use a multilib RTEMS for the 68EC060 without any emulation and it 
works fine (the EC does not have a FP unit so also have -msoft-float).

 > Are there any user-entry points to FPSP at all
 > (apart from the installation routine, of course)?

  Chris Johns, cjohns at cybertec . com . au

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