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

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   Message 3,842 of 4,255   
   mutazilah@gmail.com to All   
   CP/M-80 on V20   
   17 Jul 23 15:39:31   
   
   From: muta...@gmail.com   
      
   Note that the photo of the CPU in the laptop I have   
   ordered shows an NEC V20. Assuming I actually   
   get one of those, I will be in a position to run 8080   
   code.   
      
   (on a new computer)   
      
   I can still run 8086 code on new computers - although   
   new computers without a BIOS would require me to   
   switch to LM64 to do UEFI calls - but this is the first   
   time I have ever had the opportunity to run 8080 code.   
      
   I have programmed an 8-bit computer before (Commodore 64,   
   6502/6510), but never an 8080.   
      
   I've never even personally run CP/M - any flavor - real or   
   emulated.   
      
   I also have an interest in "BDS C" for CP/M-80, which is   
   a public domain C compiler.   
      
   So there are two things I may do.   
      
   1. Add the same functionality as 22Nice to PDOS/86 so   
   that it is a small clone of CP/M-80.   
      
   2. Replace the CP/M BIOS layer with callbacks to 8086   
   code to be handled by PDOS/86 and run real CP/M-80.   
      
   Although I think I am more likely to prioritize something   
   else on my plate - a custom version of msvcrt.dll that   
   opens a graphics window and writes 80 * 25 text to it   
   so that my win32 console mode programs run under   
   Windows 3.11 and commercially-supported ArcaOS   
   (ie OS/2).   
      
   One other thing of interest to me is making sure that   
   PDOS/386 can be built with commercially-supported   
   Digital Mars.   
      
   BFN. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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