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PostPosted: Tue May 10, 2016 6:52 pm 
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Hello everyone.
I am an embeded system engineer also an electronic hobbyist.

from middle of last year to present, I am getting myself busy with NES fpga implementation,along with HDL and hardware studying.
of course the NES FPGA implementation has be done by many people, but none of them made composite video output.

I want to do composite video output especially NTSC, the perfect thing I want to do is accruately copy of original 2c02, video ouput first of course.

after lots of search and study, finally I have a little clue and also many confusing concept.
from the neswiki
http://wiki.nesdev.com/w/index.php/NTSC_video
the link for nes_ntsc_waveform.c and Windows executable is dead.
does anyone have the copy of these files ,and please upload them ,big thanks.

also the thread "NTSC NES Composite Video Emulator" viewtopic.php?f=3&t=930&start=30
the author blargg upload a lots of source code, but also the link is no long avaiable.
e.g. it's now http://h1.ripway.com/blargg/temp/ntsc_emu6.zip ntsc_emu1.zip ntsc_emu2.zip ntsc_emu3.zip ntsc_emu4.zip ntsc_emu5.zip
can anyone have the copy and upload them? many appreciation.


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PostPosted: Tue May 10, 2016 7:14 pm 
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Joined: Sun Sep 19, 2004 9:28 pm
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Location: Mountain View, CA, USA
I believe these have been replaced/superceded by blargg's nes_ntsc library, which should contain the same (or improved) code. It absolutely has composite output support. You'll need to read the source code to understand it, ditto with readme.txt and nes_ntsc.txt.

There's currently no official Windows .exe build from blargg, but rainwarrior was happy to provide one a couple years ago. See blargg_ntsc.txt (in blargg_ntsc.zip) for what keys do what, and what the X/Y axis of your mouse controls.

If you need something more than that, you can reach out to blargg directly: there's a Contact link at the upper right of his website; he does answer/respond.

I'll update the Wiki to refer to the aforementioned links.


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PostPosted: Wed May 11, 2016 12:21 am 
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Joined: Sat May 07, 2016 5:09 pm
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koitsu wrote:
I believe these have been replaced/superceded by blargg's nes_ntsc library, which should contain the same (or improved) code. It absolutely has composite output support. You'll need to read the source code to understand it, ditto with readme.txt and nes_ntsc.txt.

thanks for your information.
I have downloaded his latest source code. I think the code is highly optimized.
for studying, I think it is better for human-brain to read original and raw code (no fancy trick in it) .
I had hard time to read and process the content at ntsc_video wiki page,I found lots of people has same problem with me.
but after reading the code snippet in this page, I started to understand something. that't veryhelpfull, that's why I need the code. I want port the code to my emulator to see what will happen.
so I still believe, we should find the lost code and put it to the ntsc_vide wiki page.

so I want to know do I make my point clear enough for you?

but if the original code can not be recovered, I think I have to read the polished ,improved code as you recommended.


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PostPosted: Wed May 11, 2016 12:41 am 
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Location: Mountain View, CA, USA
Quote:
If you need something more than that, you can reach out to blargg directly: there's a Contact link at the upper right of his website; he does answer/respond.


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