OpenEuphoria

Re: Cannot load VDM IPX/SPX support

• Posted by don cole <doncole at pacbell.net> May 03, 2005
• 509 views

Alexander Toresson wrote:
> 
> Hayden McKay wrote:
> > 
> > Some adaptors require that you use the "use_vesa()" even in VGA 8-bit modes.
> > This is because some VGA modes on the controller may be Non-VGA compatable.
> > This means that you can not program the VGA controller via the VGA ports.
> 
> The mode he tried to set is mode 18, 640x480 16 colors (4-bit). It's one of
> the most
> standardized vga modes.
> 
> > For example my SIS6326 8Mb AGP accelerator needs to use "use_vesa()" for
> > most standard VGA modes (except linear mode 19) because the architecture of 
> > the VGA 8-bit modes on it are based on a Non-VGA controller.
> 
> Which modes do you refer to?
> 
> > n.b. SVGA modes are defined by VESA as having 15 -> 32 bit pixels. Euphoria
> > DOES NOT support ANY SVGA modes.
> 
> It does. SVGA is defined as modes with a resolution of at least 800x600, and
> you can
> use those modes with vesa vbe, or by calling the video bios directly. Vesa vbe
> is the
> preffered option, because most cards support it. However, the vesa vbe support
> can
> be buggy for some cards. Vesa vbe does include modes that are 15-32 bit and
> have a
> lower resolution than 800x600.
> 
> Regards, Alexander Toresson
> 


The reason I selected mode 18 is because it is the only mode that supports 
4 different graphic pages. Very important to the stucture of my program.

Display_page(0)
Display_page(1)
Display_page(2)
Display_page(3)

I forget the chart but some modes support 2 pages and others only one.

Will these other modes and the use of "use_vera()" support 4 pages?

don cole
SF