Thunderbird/5.0   
   s2.utilities,comp.os.os2.beta   
   UTC)   
   comp.os.os2.misc:3431 comp.os.os2.utilities:218 comp.os.os2.beta:180   
   From: Jonathan de Boyne Pollard    
      
   > Unfortunately for the proposal, what it has assumed as the de facto    
   > standard is not standard at all.  Microsoft switched to using DS:BP as    
   > the roving pointer into the partition table as of Windows NT 6.0 in    
   > 2007.  The supposed standard is merely an accidental byproduct of the    
   > way that MBR code that was installed by MS-DOS and some early versions    
   > of Windows NT operated, doesn't (the killer fact for a "de facto"    
   > standard) match the way that things operate now and have operated for    
   > the past several years, and the proposed extension has an entirely    
   > false foundation.   
   >   
   I cannot, looking around, find trace of any operating system taking heed    
   of the PaP BIOS Specification, which specifies ES:DI as a pointer to a    
   PaP table, either.  That convention, which the new EDD proposal that I    
   mentioned before claims to build upon and extend, my MBR bootstrap code    
   *does* adhere to, nonetheless.  (It preserves the ES:DI from the    
   firmware and passes it to the VBR.  All of the operating system    
   bootstraps that I've checked so far immediately zap the ES register,    
   though.)   
      
      
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