Re: machfb (sort of) working on Mach64 GX

[David Riley <fraveydank%gmail.com@localhost>]

On May 3, 2011, at 8:56 AM, Michael wrote:

>> dsp_precision = 4, dsp_loop_latency = 10,
>> mclk_fb_div = 228, vclk_fb_div = 181,
>> mclk_post_div = 2, vclk_post_div = 2
>> 
>> /* above is the last legible line printed at the bottom of the screen */
>> /* everything from this point forward is compressed into the upper-left */
>> /* 1/16th of the screen (1/4 width, 1/4 height).  As such it is just an */
>> /* illegible jumble of gray and white vertical bars littered with pixel */
>> /* garbage that would be the screen text. */
> 
> Does the line above remain visible / readable? If it does then the mode 
> setting code is actually doing the right thing and we screw up somewhere 
> initialising the drawing engine.

Actually, I'd guess that might be more accurate, given what the pictures looked 
like; if it were a mode setting problem, I'd expect the pixels to be skewed 
across the screen rather than having big bars/blocks which are vertically fine.

- Dave