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   comp.lang.asm.x86      Ahh, the lost art of x86 assembly      4,675 messages   

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   Message 4,660 of 4,675   
   R.Wieser to All   
   Testing all video mode - but which ones    
   13 Feb 24 08:57:32   
   
   From: address@nospicedham.is.invalid   
      
   Hello all,   
      
   I've got a small program going thru all video-modi by looping AL from 80   
   upto FF, calling INT 10, AH=00.   
      
   I would like to find out which of those modi are graphical.  Ralf Browns   
   memory list shows 0040:0065 to hold some bits regarding the current video   
   mode.  In my case the lower two bits are of interrest   
      
   Mode 03, text, shows the value 01.  Alas, mode 0D, graphics, also shows 01.   
   In fact, only modi 4 thru 6 show a 02 there, and modi 0 and 01 show a 00.   
   Al others show 01.   
      
   And I'm pretty sure there are  few other graphics modi above mode 06 ...   
      
   tl;dr:   
   How do I find out if a certain mode is graphics ?   
      
   Secondary question : if the lower two bits of 0040:0065 are *not* the   
   current video-modes graphics and textmode capablities, what do they signify   
   instead ?   
      
   Regards,   
   Rudy Wieser   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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