From: muta...@gmail.com   
      
   I'm having a bit of trouble getting my head around   
   the Chromebook.   
      
   This device seems unique in that it allows a custom   
   BIOS to be flashed, ie Seabios.   
      
   On an old Chromebook, I have used this:   
      
   https://mrchromebox.tech   
      
   and been able to run PDOS/386. And it's great.   
      
   However, INT 14H doesn't give me anything because   
   I don't have a serial port.   
      
   I asked the Seabios people if they could add a TCP/IP   
   stack (they already have a USB stack) plus NDIS so that   
   they could do USB tethering to an Android smartphone,   
   to give me a virtual modem.   
      
   They weren't interested.   
      
   I'm interested in replacing Seabios with my own BIOS   
   where I can add these things to a public domain project   
   instead of someone else's copyrighted project.   
      
   This should revive communications not just for PDOS/386,   
   but also MSDOS, which I think uses INT 14H.   
      
   My understanding is that by going this route I would be   
   using documented standards - something that I can't do   
   with wifi.   
      
   But I'm interested in what the flashed BIOS itself would   
   need to look like.   
      
   I'm guessing I could have the RM16 INT 14H switch to   
   PM32 and then manipulate the hardware (USB port),   
   the same way as a normal driver for any hobbyist OS   
   would do it.   
      
   My understanding is that a USB stack is a lot of work,   
   so I probably won't embark on such a project for a long   
   time, but I would like to make sure that appropriate   
   hardware exists and that this is a reasonable way   
   forward to revive modems for legacy OSes.   
      
   Neither Windows nor Linux would be required on the PC.   
      
   There would still be an Android phone, but it is merely   
   acting as part of an elaborate modem. The OS itself is   
   not exceeding the capabilities of computers available   
   in 1986.   
      
   Any idea how many lines of C code are required to have a   
   BIOS good enough to run PDOS/386? With and without a   
   modem (ie breakdown of different components).   
      
   Also, how portable is the BIOS to the different Chromebooks?   
      
   Thanks. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)