From: user5857@newsgrouper.org.invalid   
      
   Michael S  posted:   
      
   > On Tue, 06 Jan 2026 17:56:23 GMT   
   > MitchAlsup  wrote:   
   >   
   > > Michael S  posted:   
   > >   
   > > > On Sun, 4 Jan 2026 00:21:31 -0000 (UTC)   
   > > > Thomas Koenig  wrote:   
   > > >   
   > > > >   
   > > > > And two decimal flavors, as well, with binary and densely packed   
   > > > > decimal encoding of the significand... it's a bit of a mess.   
   > > > >   
   > > >   
   > > > Since both formats have exactly identical semantics, in theory the   
   > > > mess is not worse (and not better) than two bytes orders of IEEE   
   > > > binary FP.   
   > >   
   > > Division by 10 is way faster in DPD than in Binary.   
   > >   
   >   
   > Do you consider speed to be part of semantics?   
   > Just wondering...   
      
   More like justification for the facility itself.   
      
   But also note: DPD can be converted to ASCII all data in parallel without   
   any division going on. Binary does not have that property.   
      
   > > > I see much bigger problem [than BID vs DPD] in the fact that IEEE   
   > > > standard does not specify few very important things about global   
   > > > states and interoperability of BFP and DFP in the same process.   
   > > > Like whether BFP and DFP have common rounding mode or each one has   
   > > > mode of its own. The same question about for exception flags and   
   > > > exception masks.   
   > > >   
   > > >   
   > > >   
   >   
   >   
      
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