From: james.harris.1@gmail.com   
      
   On 28/11/2023 09:49, Paul Edwards wrote:   
   > Hi all.   
   >   
   > I can't remember if I mentioned, but I bought a   
   > Hand 386 computer to try to test PDOS/386 on real   
   > hardware. It died before I could do much of anything.   
      
   Yes, I saw (with interest as I have some similar goals to you) you   
   mention you had bought a PC clone. When you say it died do you mean the   
   boot failed or that the machine itself is now dead?   
      
   If the latter, do you think it was some step of your program that it   
   couldn't cope with?   
      
   ...   
      
   > In the meantime I purchased an old 386SX, since the   
   > new Hand 386 was no longer available for sale.   
      
   OK. Genuine 386-based PCs were very expensive last time I looked.   
      
   >   
   > But the physical machine had an enormous difficulty   
   > doing anything, and even then I only had minutes of   
   > it working.   
   >   
   > But today enough things went right for me to get a   
   > test done, and you can see my vlog (2023-11-28) at   
   > http://pdos.org to see PDOS/386 booted from floppy.   
   >   
   > That's all I really wanted to know - that PDOS/386   
   > has no non-80386 instructions in it. Instead of hoping   
   > the emulators are perfectly correct   
      
   That's a bit confusing. You tested your code on a 386SX to check it had   
   no 386 instructions in it? Surely you would want to test on a real   
   8086/8088.   
      
   FWIW my CPU detection code does theoretically distinguish between 8086,   
   80186 and 80286 but I've never had a real 186 to test it on. Instead, I   
   found two emulators, only one of which apparently behaved correctly as a   
   186.   
      
      
   --   
   James Harris   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)