Re: [KOS] KOS development

[Lawrence S. <ljs...@us...>]

It has been quite quiet here for a long time... There are other, more active places to discuss KOS-related stuff, including the #dreamcastdev channel on the Freenode IRC network.

On the subject of the plasma example, I'm going to take a guess that it is because the data hasn't been flushed from the cache before the DMA tries to transfer it. You need to flush it all out of the dcache before it'll work properly.

- Lawrence

On Apr 29, 2013, at 8:27 AM, Christian Groessler <ko...@ya...> wrote:

> Hi,
> 
> this mailing list appears to be quite abandoned, but still I see occasional commits to the repository.
> 
> So, my question, is the mailing list here still the primary place for discussions about KOS development or is there another forum in the meanwhile?
> 
> And, anoher question:
> 
> I've tried the plasma sample (examples/dreamcast/pvr/plasma) and in line 102 in plasma.c there is a comment "Switch these around to try out texture DMA".
> I've switched them around (commented the pvr_txr_load line and uncommented the pvr_txr_load_dma line, btw. there were missing parameters to the call to pvr_txr_load_dma), but then I get flickering garbage overlaid over the plasma display.
> It looks like every second frame displays garbage.
> 
> Could someone with more knowledge than me look into it and tell me what is wrong? I couldn't manage to fix it myself to use DMA correctly.
> 
> regards,
> chris
> 
> 
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