advr.hlp (Topic list)
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The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Screen Modes 7, 8, and 9
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 Screen Modes 7, 8, and 9
 
 ■ Applies to EGA or VGA adapters
 
 ■ Mode 7 (320 x 200 graphics):
   • 40 x 25 text format, character box size 8 x 8
   • 32K page size, pages 0-1 (64K adapter memory), 0-3 (128K), or 0-7 (256K)
   • Assignment of 16 colors to any of 16 color attributes
 
 ■ Mode 8 (640 x 200 graphics):
   • 80 x 25 text format, 8 x 8 character box
   • 64K page size, pages 0 (64K adapter memory), 0-1 (128K), or 0-3 (256K)
   • Assignment of 16 colors to any of 16 color attributes
 
 ■ Mode 9 (640 x 350 graphics):
   • 80 x 25 or 80 x 43 text format, 8 x 14 or 8 x 8 character box size
   • 64K page size, page 0 (64K adapter memory); 128K page size, pages 0
     (128K adapter memory) or 0-1 (256K)
   • 16 colors assigned to four color attributes (64K adapter memory), or 64
     colors assigned to 16 color attributes (more than 64K adapter memory)
 
 See: SCREEN Statement