From: noemail@basdxcqvbe.com   
      
   On Tue, 29 Jun 2021 23:05:49 GMT   
   Branimir Maksimovic  wrote:   
      
   > On 2021-06-28, Rod Pemberton  wrote:   
   > > On Sun, 27 Jun 2021 15:17:43 GMT   
   > > Branimir Maksimovic  wrote:   
   > >> On 2021-06-27, Rod Pemberton  wrote:   
      
   > >> > IIRC, memtest86+ loads from DOS.  So, it's likely 16-bit code   
   > >> > too, or possibly 32-bit if was compiled for DPMI.  32-bit might   
   > >> > not be too bad.   
   > >>   
   > >> memtest86 can test more then megabyte so I guess it is not 16   
   > >> bit...   
   > >   
   > > Aren't you familiar with "unreal" mode? ...   
   >   
   > Yes, but that is 32 bit, not 16 bit programs...   
      
   No, unreal mode is generally 16-bit real-mode code.  It's called unreal   
   mode because you have access to the entire memory range in real-mode.   
      
   As I understand it, 32-bit unreal mode is exceptionally difficult to   
   use due to an issue with interrupts.  The only 32-bit unreal mode   
   example that I'm aware of is/was FASM.   
      
      
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