[Open-graphics] VGA text mode C version

[Timothy Normand Miller]

On Wed, Jul 30, 2008 at 2:31 PM, Petter Urkedal <urkedal at nbi.dk> wrote:
> On 2008-07-29, Timothy Normand Miller wrote:
>> We have ports defined for a single out-standing read.  That won't work
>> for a block of reads, though.  Do we need it for anything?
>
> Considering the VGA code, I can imagine we could use it to have several
> glyph transfers in progress if we also make the return pipe long enough
> (or transfer to HQ BRAM).  But I'm not suggesting it at this point,
> since in addition to the hardware complexity, it may be tricky to
> utilize in code.  We can revisit if too much time is wasted waiting for
> read data.

I think you're talking about the bridge.  I'm talking about PCI target reads.



-- 
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Open Graphics Project