[Oberon] FPGA - Pictures.Mod

[Tomas Kral]

Hi,

I have made some progress with Oberon pictures. I am now able to
process `RLE' runs and load pixels into bitmap area. 

https://github.com/tcat-qldom/Oberon-pictures

It is still not clear to me, if colour bitmaps are also RLE-compressed,
as b&w bitmaps compress subsequent pixels of the same colour,
correct?

To formulate `EBNF' for `RLE', may be next exercise of mine, before
writing compress method.

I have coded in assembly, a simplified `RLE' de/compressor for `Sinclair
QL'. `RLE' sequence is identified by two equal short words, as display
buffer is organised by words. One word controls RGB colour of four
pixels.

-- 
Tomas Kral <thomas.kral at email.cz>