From: rick.c.hodgin@gmail.com   
      
   On 7/4/2019 3:10 AM, wolfgang kern wrote:   
   > On 03.07.2019 14:12, Rick C. Hodgin wrote:   
   >   
   > ...   
   >> Until then I did a lot of this:   
   >>   
   >>      mov     ax,0b800h   
   >>      mov     es,ax   
   >>      mov     word ptr es:[di],0072eh   ; Display a dot   
   >>    @@:   
   >>      hlt   
   >>      jmp     @B   
   >>   
   >> That kind of thing. :-)   
   >   
   > this tell that it's still in realmode with text-mode 03.   
   >   
   > for PM32 check:   
   > ;assume DS flat 4G   
   >   
   > C7 05 00 80 0B 00 50 70   mov word [0x000b8000],0x7050 ;"P"   
      
   In pmode I would do this:   
      
        mov     ax,_sVGA   
        mov     es,ax   
        mov     word ptr es:[0],0072eh   ; Display a dot   
      @@:   
        hlt   
        jmp     @B   
      
   I would use positions at X,Y from 0,0 (upper-left) across the   
   line horizontally to indicate what I went through.  In some   
   places I would use a "-" in others a "+" to indicate which   
   part of the code went through, etc.   
      
   My startup upper-left bar would look like this:   
      
        ....-...+....   
      
   And so on.  It was an easy to way indicate it was working   
   without yet having keyboard and mouse functions, or even   
   decent video functions.   
      
   Later on I had full handlers and wrote code more or less   
   like we see in DOS.   
      
   --   
   Rick C. Hodgin   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)