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Post by Pyrofer on Nov 28, 2019 9:08:12 GMT
Ok, I am going to extend the deadline.... It's clear some people are working and trying! I don't want to punish people because of an arbitrary deadline.
I will decide the exact date later, but late January seems better...
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Post by Pyrofer on Nov 27, 2019 8:16:21 GMT
Pin2 on the VDC is the pixelclock I think. I use it currently while developing my Scandoubler. I just clipped a wire onto that pin!
You are right capturing the pixels is easy because it's digital. it's doing anything with them fast enough that is the issue. I am still trying to get the scanddoubler working.
If you guys are saying the mono out of the VDC could drive colour on standard CRT devices (a lot of which actually do support NTSC) that would be amazing. I wonder if just seeing the 60hz frequency would be enough to make them try and decode NTSC instead of PAL or if there is more complex detection?
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Post by Pyrofer on Nov 26, 2019 9:28:05 GMT
I am still unsure how this will work from a real unmodified C128. Can somebody do some tests from the mono composite out and see if ANY colour can be gained on a NTSC monitor? (Is there a similar hack for PAL?)
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Post by Pyrofer on Nov 25, 2019 20:03:22 GMT
The composite output on the 128 is monochrome only. I have no idea if you can abuse the chip enough to get colour out of that. That said, my Video Mux has S-Video and composite output from the RGB signal, so it might be possible to do something with that. Sadly not many people have those so probably not worth it. I did consider making an addition to the video DAC that would have different palettes selected with the user port or another signal from the 128. I am not sure how much use that would be, and again would need people to buy special hardware so not wide spread use.
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Post by Pyrofer on Nov 13, 2019 10:01:15 GMT
Ahh, I see. Tell the turbo loader isn't such an issue for me but the 40 col screen thing... I am undecided on as the main goal was to push VDC use. I felt 40 col stuff would be too close to 64 stuff "but with a bit more ram" as people always say. Would you be finished in time to submit? I might consider widening the rules for a second category or something.
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Post by Pyrofer on Nov 12, 2019 9:18:19 GMT
Can I please remind people about this competition!
I have had only one person confirm they will submit an entry.
If you are planning to submit, please let me know at least the name and a brief summary of the submission.
If only 2 people enter, thats 50% chance of FREE HARDWARE (NeoRam cart), thats pretty good odds don't you think? Nobody wants free stuff?
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Post by Pyrofer on Oct 7, 2019 11:36:42 GMT
That's pretty cool. Do you have actual figures for the power use for that Vs DRAM chips? It would be interesting to see!
I love the new board though, if I didn't already have an upgraded machine I would get one!
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Post by Pyrofer on Oct 5, 2019 19:16:33 GMT
That's great, but it doesn't quite meed my needs. I have a VDC "ready" image. It's been made using the correct 16 colour palette and obeys the 8x2 colour limit. It's 640x200 pixels and I need to simply save it in a format I can read back into VDC memory to display easily. So I don't want to alter the image in any way, just get it into a data format I can load into VDC ram. I think the big issue is my understanding rather than anything technical. I just can't get my head around how to turn coloured pixels into pixel data and colour data.
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Post by Pyrofer on Oct 5, 2019 12:46:40 GMT
So VDC Mode mania had some nice pictures in it, I assume they were not manually entered as data statements so how were they imported?
I have a picture I want to convert to a 640x200 8x2 image and display, in theory this means a black and white bitmap and a second set of colour data, I have no clue how to export this data though.
My attempts to turn the image to black and white and export just the pixel data result in a lot of solid white pixels.
Does anybody have existing tools for doing this sort of conversion?
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Post by Pyrofer on Oct 4, 2019 19:02:10 GMT
so I finally have a demo that works on Z128K but not on real hardware!
Or at least not on my hardware. I am not sure exactly what the issue is but I think it's the VDC busy flag clearing too soon on the emulation? I can let you have the .prg if you promise not to spoil the surprise of the demo I am working on...
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