home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   alt.os.development      Operating system development chatter      4,255 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 2,595 of 4,255   
   wolfgang kern to All   
   Re: PDOS/86   
   14 Jul 21 22:03:50   
   
   From: nowhere@never.at   
      
   On 14.07.2021 20:18, muta...@gmail.com wrote:   
      
   [about...]   
   my English is good enough to understand what you try to achieve.   
   but it seems you haven't got how segment descriptors are built   
   and how segment selectors interact with the GDT.   
      
   you sure can map many 64KB physical consecutive blocks to also   
   consecutive segment descriptors i.e.:   
      
   0008 base 0000_0000  code limit ffff   
   0010 base 0000_0000  data   
   0018 base 0001_0000   
   0020 base 0001_0000   
      
   but the selector must be calculated, simple shift wont help here.   
   so your idea to make it an easy solution fell flat :)   
   __   
   wolfgang   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca