From: becka@rz.uni-duesseldorf.de
  To  : Shyam Singh <shyamsingh@yahoo.com>
  Date: Thu, 25 Feb 1999 19:14:20 +0100 (MET)

Re: S3-MMIO problem, please suggest

Hi !

I have forwarded your Mail to our mailing list, as they will probably
know better and can answer with less research needed.

Folks: remember to CC him  ...

> Dear Sir,
> 
>    I am writing a GUI using S3-Trio64 chipset
> (ViRGE-DX card) for a Neuro-surgery software. 
> I am able to generate GUI using 64K banking. Since animation 
> requires fast drawing/blitting of images
> for that I would like to use Memory Mapped I/O but I am not able 
> to draw
> any thing using MMIO (neither old MMIO nor new MMIO is working). I
> guess I am not setting write value in some registers. 
>   I will be very thankful if you let me know what is the proper 
> sequence for drawing one simple rectangle, using MMIO. It will
> help me in a great way.
> 
> I am using 1024*764 resolution with 16M color (VESA mode is 118H).
> Chip specifications are as follows:
> S3 video chip: ViRGE DX(375)
> Display Memory: 4M
> Display Memory type: Fast Page Mode DRAM
> CR30 = E1H,CR36 = 1EH, CR6F = 0EH, CR2D = 8AH, CR2E = 01H, CR2F = 01H
> 
> Thanking you.
> 
> Sincerely,
> 
> Shyam Sunder Singh

CU, Andy

-- 
= Andreas Beck                    |  Email :  <andreas.beck@ggi-project.org> =