From: ohland@charter.net   
      
   Two versions of @80ec.ADF exist. The significant difference is the   
   presence of a Z-Buffer Item in ver 0.02, and what seems to be disabling   
   the Z-Buffer in ver 1.00 under "Fixed Resources"   
      
   "Matrox MGA Video Adapter (V0.02)"   
   "Matrox MGA Video Adapter (V1.00)"   
      
   AdapterId 80ECh "Matrox MGA Video Adapter (V0.02)"   
      
   NumBytes 2   
      
   NOTE: No "Fixed Resources" for ver 0.02   
      
   AdapterId 80ECh "Matrox MGA Video Adapter (V1.00)"   
      
   NumBytes 2   
      
   FixedResources   
              pos[1]=XX0XXXXXb   
      
   NOTE: This masks the Zbuffer enable bit to "Disabled". Also, the   
   "Zbuffer" item is removed from ver 1.00   
      
   Enable/Disable Adapter   
       " Adapter Enabled "    pos[0]=XXXXXXX1b   
         Adapter Disabled     pos[0]=XXXXXXX0b   
      
   NOTE: Same for 0.02 and 1.00 (duh!)   
      
   Help Enabled (normal use). Disabled if you are not using the adapter and   
   enabling it causes a conflict with another device.   
      
   Memory Mapping   
            " Map2 C8000 "         pos[1]=XXXXX010b mem 0c8000h-0cbfffh   
              Map3 CC000           pos[1]=XXXXX011b mem 0cc000h-0cffffh   
              Map4 D0000           pos[1]=XXXXX100b mem 0d0000h-0d3fffh   
              Map5 D4000           pos[1]=XXXXX101b mem 0d4000h-0d7fffh   
              Map6 D8000           pos[1]=XXXXX110b mem 0d8000h-0dbfffh   
              Map7 DC000           pos[1]=XXXXX111b mem 0dc000h-0dffffh   
              Map1 AC000           pos[1]=XXXXX000b   
      
   Help There are 7 16K windows where you can map the MGA.   
   Note: Use Map1 only if the on-board VGA is enabled.   
      
   NOTE: ver 1.00 removes Map1 (AC000), only 6 16k windows (duh!)   
      
   MGA on-board VGA   
        " VGA Enabled "        pos[1]=XXXX0XXXb mem 0c0000h-0c7fffh   
          VGA Disabled         pos[1]=XXXX1XXXb   
      
   Help Select 'VGA Enabled' if you want a single screen solution.   
   This enables the VGA bios at C0000h (on the MGA adapter).   
      
   NOTE: Same for 0.02 and 1.00   
      
   Composite SYNC   
       " CSYNC Disabled "     pos[1]=XXX0XXXXb   
         CSYNC Enabled        pos[1]=XXX1XXXXb   
      
   Help Select 'CSYNC Enabled' if you are using a composite sync monitor.   
      
   NOTE: Same for 0.02 and 1.00   
      
   Zbuffer   
      " Zbuffer Absent "     pos[1]=XX0XXXXXb   
        Zbuffer Present      pos[1]=XX1XXXXXb   
      
   Help 'Zbuffer Present' if your MGA has it's ZIP memory installed   
   on the sockets placed on the lower left area of the adapter. Default is   
   'Zbuffer Absent'.   
      
   NOTE: 1.00 removes the "Zbuffer" item -AND- adds a "Fixed Resources"   
   line to mask the Zbuffer enable bit to "Disable"   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)