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DanBoris' Tech Blog

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Pong Project

Posted by DanBoris, 03 May 2007 · 151 views

I've been working on a Pong related project and I thought I would post a screen shot:

[attachment=76653:Screen.jpg]

Yes, this may look like any one of 1000 different Pong simulation programs that people have written, but this one it a little bit different. The screen shot you see here was generated by doing a chip level simulation of the...

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Top and Bottom Hit Sound

Posted by DanBoris, 23 April 2007 · 36 views

Looks like we have finally come to the last Pong circuit we need to cover. I just looked back at the archive for this blog and was shocked when I realized that I have been doing this Pong circuit description for almost 2 years! I know I was going through this pretty slowly but never realized I had taken that long. On to the final...

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Attract Mode

Posted by DanBoris, 19 April 2007 · 34 views

The next thing I want to talk about is the attract mode, which is the mode the game is in when it’s not being played, designed to “attract” new players. Most of the schematics for this section I have posted already, so I will just describe how attract effects each section. The attract signal is generated by the game control circuit and is fed as...

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Ball Horizontal Control Proposal 2

Posted by DanBoris, 17 April 2007 · 56 views

Here is the other proposal supercat made for the ball horizontal control circuit. This one actually appears to work exactly like the real circuit, providing 3 different ball speeds and saves at least 2 chips.

[attachment=2011:attachment]

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Ball Horizontal Proposal

Posted by DanBoris, 08 April 2007 · 49 views

In the discussion of the ball horizontal control circuit, supercat proposed a simplified circuit that would perform the same function. This is the circuit I believe he is describing:

[attachment=1982:attachment]

It actually comes pretty close to working, and it does use less chips, but instead of generating 3 speeds it generates 4.

The VSYNC...

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