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2010-08-19 11:41

Shadow
Account closed

Registered: Apr 2002
Posts: 355

VIC timing diagram?

When coding for the Atari 2600, I found

which is a very nice and easy-to-understand way of visualizing the timing of a single raster line.

Anyone seen or made something similar for the C64/VIC?
With things like 'border starts here at cycle X' and sprite Y will steal Z cycles here if enabled, badline will steal these cycles etc.
Failing that, is there a text with all these infos compiled into it?
Because I just realized how very little I know of the exact timings, knowledge that I need to improve!

2010-08-19 11:48

chatGPZ

Registered: Dec 2001
Posts: 11116

ofcourse, try reading "the vic article" :o)

2010-08-19 11:54

Mr. SID

Registered: Jan 2003
Posts: 421

This is the prettiest version I found:

Full text: https://sh.scs-trc.net/vic/ or http://www.zimmers.net/cbmpics/cbm/c64/vic-ii.txt

2010-08-19 15:18

Shadow
Account closed

Registered: Apr 2002
Posts: 355

Thanks, that picture seems pretty informative, now I only need to read up on what the different symbols mean.
That VIC article seems to be very comprehensive to say the least!

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