From: terje.mathisen@tmsw.no   
      
   Andy Valencia wrote:   
   > BGB  writes:   
   >>> Why on earth would you use floating point instructions   
   >>> in an interrupt handler?   
   >> I didn't go and track down which code was using FPU instructions, but   
   >> seemingly something was,   
   >   
   > I believe I noted once before that I had to guide a driver developer for   
   > HP/UX away from using floating point for his driver's event counters.  His   
   > reason for their use?  They can count to bigger numbers.   
      
   Did you ask him what happened after the counter passed 2^53 and he added   
   1.0 to the counter? With RNE that's a NOP...   
      
   Using 64-bit counters are far better, even on a 32-bit CPU, even if you   
   then need thread-safe/atomic code sequences.   
      
   Terje   
      
      
   --   
   -    
   "almost all programming can be viewed as an exercise in caching"   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)