[Oberon] RGB display in Oberon RISC5

[thomas.kral at email.cz]

Magnus,

That is great, now we can see Oberon is capable of supporting more colours, not sure how they are coded

R   G   B         colour
0   0   0           black 
0   0   1           ?
0   1   0           ?
0   1   1           ?
1   0   0           ?
1   0   1           ?
1   1   0           ?
1   1   1           white

There are four bits used as you say,

bit 3: not used
bit 2 : R
bit 1 : G
bit 0 : B

Many thanks
Tomas

---------- Původní zpráva ----------
Od: Magnus Karlsson 
Komu: oberon at lists.inf.ethz.ch
Datum: 18. 4. 2016 22:29:54
Předmět: [Oberon] RGB display in Oberon RISC5

I have made an updated version of VID.v with support for an RGB video 
buffer.

The video buffer is now 4x larger (about 40% of the total 1 MB RAM) and 
video refresh will use up about 40% of the memory bandwidth.

See http://saanlima.com/forum/viewtopic.php?f=14&p=1786#p1783 for 
Verilog code and bit files for Pepino_LX9 and Pepino_LX25.

Magnus
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