5-11under

Hi Ikrananka, I've done some work on this a while back, and am just getting started back onto the project as of yesterday. The problem I've had is variability between TV sets/monitors. On my TV, I get some corners of pixels flickering on/off on the top half of the screen, as well as vertical banding. However, I tried it out on a smaller TV yesterday at a video game show, and it looked great. Someone complained that you could see the pixels (ie. no smearing), but that's another story. I also get a lot of colour variability between TVs. I'm not sure if that's my fault or just the way it is. I'm still happy with the picture I get on my TV, but I'm hoping to get it better, and be able to have higher consistency for all/most TVs. Sorry, I'm not great at understanding transistor circuits, but I'd keep the same 75 ohm circuit on each path. Remember, too, that just having the "Y" connected should get you a monochrome picture. The Pb and Pr output levels from the VDP vary somewhat from the Y level, if I recall correctly, so the amplification pot position will be different. Also, I think the output of the VDP actually needs to be attenuated, but I'm guessing most transistor amplifiers would be able to do that. Just do your best to start the circuit at the "zero" level before cranking it up to 11. Thanks, 5-11under

They'll be raffling an arcade game: a 1980's Sega Gremlin Monaco GP. Thanks, 5-11under

Hi everyone, In case you're in the area, there's a videogame swap meet (and more) in the Toronto area on Sunday, April 26. Here are the details: http://www.cgcc.ca/forum/viewtopic.php?t=17940 Thanks, 5-11under

Are the lines consistent, each time you play the same game? Are the lines different for each "character" on the screen? If yes and yes, I'd say the video RAM is bad. Thanks, 5-11under

Hi newcoleco, I haven't tried it yet, but it's a great idea to be able to overlay the sprites on top of the "character" background. Very useful for splash screens, to help circumvent the 2 colour limit within a character width. Thanks, 5-11under

Hi Youki, I sent you a PM regarding PCBs. AtariAge can also help out. They also sell PCBs, and may be able to publish your game, if you like. Albert would be able to fill you in on the details. Have fun! 5-11under

Interesting. Maybe I was limiting myself to loading 256 bytes by using "char" variables, or something. I'll have to try that again. 5-11under

Yes, that is correct: 32 8x8 or 8 16x16. 5-11under

Hi Daniel, It looks like I'll be using the Coleco format. It looks more intuitive and powerful. I see you've posted some information: http://www.atariage.com/forums/index.php?showtopic=138776 And this, which looks to require some massaging and editing of the data before being able to be used: http://www.geocities.com/newcoleco/soundbank/os7_en.html Youki, you might be able to use this, with a bit of work, to sequence the sounds. Thanks, 5-11under

Hi Daniel, This looks like a good tool, especially with the bass and white noise, because that is more difficult to imagine in my head. I've been playing with the 021 version, and comparing to your documentation for C Programming (specifically Marcel's Sound Data Format section). I haven't tried it in a program yet, but I found some things I don't understand: - How to get beyond the "3F" delay range for longer notes, without stringing up several "3F"s. - The "5X" code - The difference between the "40" code and the "42" code. Bottom line is, do you have more documentation on Marcel's sound format than is in your programming guide? Any chance of getting the frequency sweep added? That aspect is even more difficult to "visualize". Thanks, 5-11under

Alternate power and I/O ports doesn't sound too insurmountable. I'm almost positive that Doubledown has already accepted this challenge in his mind, and is waiting, as patiently as possible, to get his hands on one. Thanks, 5-11under

Bought some CV cases... all went well. 5-11under

Hi Ikanankra, So far, I'm getting variable results on a couple of TVs/monitors. For instance, my Westinghouse looks great, although in the upper part of the screen there are some flickering (Colecovision sized) pixels (for example, in the game Squares!, the squares' corners rotate between rounded and sharp. Large blocks of colour, like in the Smurf's game also have some minor banding issues. It's fine for me, but I need to do more work on it to make this a wider-reaching solution. Unfortunately, I haven't had too much time to spend on this lately. I still think about it, so I'll get back to it sometime. Thanks, 5-11under

Very fun! 5-11under

See this thread in the Prototype forum: http://www.atariage.com/forums/index.php?showtopic=138835 There were four items that coleconut found: Frenzy, Popeye, Fireman, and Mr. Robot. Unfortunately, Mr. Robot is only a case. We dumped the Frenzy and Popeye EPROMs, but they didn't take - we'll try again next time we meet, to see if they're any different from the commercial releases. The thread linked above explains the Fireman game. All three prototype boards were Coleco boards. Thanks, 5-11under

Hi CV Gus, If I recall correctly, the 2600 uses a charge circuit to figure out the paddle location. There should be a resistor and capacitor near the DB9 jack that might be at issue. Thanks, 5-11under

Thanks for all of your work on this, Daniel. This will bring C programming for the CV out of the 80's, which in this case, will be a good thing. Thanks, 5-11under

Hello all, Does anyone have any information on the company "Nice Ideas", who created ColecoVision games? There's a blurb on Big Sky Rangers, but that's about all I can find. I know they made the game Illusions, but are there any other cartridges or ROMs floating around that people are aware of? Thanks, 5-11under

Most likely at least one of the 74LS541 chips are blown, and needs replacing. Thanks, 5-11under

I sold him a gb programmer a while back. All went well! Thanks, 5-11under

Hi Pixelboy, Probably 100 black cases for me... time to get programming, I guess. Thanks, 5-11under

Hi Pixelboy, I'm interested in obtaining some cases. Thanks, 5-11under

There was one a month or so ago... organized by someone else at a different location. Check out the forums at http://www.cgcc.ca for updates. There's typically one or possibly two a year. Thanks, 5-11under

That sounds like a good way to get the job done. 5-11under

Thanks! 5-11under