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 Post subject: Another palette test
PostPosted: Fri Sep 18, 2015 12:10 am 
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Joined: Sun Jan 22, 2012 12:03 pm
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Location: Canada
I wanted a palette test ROM that would work with FCEUX, and I couldn't find one digging around so I made a new one.

This displays the regular palette on the top, and lets you play with emphasis/greyscale bits for the palette on the bottom. You can also toggle the "forbidden black" $0D color.

I tested it on a bunch of different emulators, and on my NTSC NES. I would not expect it to run properly at all on a PAL NES, but I think it will work with Dendy.

Attachment:
File comment: Palette test video capture
palette_test_capture.png
palette_test_capture.png [ 94.36 KiB | Viewed 3299 times ]


Attachments:
File comment: NES Palette test source code
palette_test_src.zip [6.87 KiB]
Downloaded 149 times
File comment: NTSC Palette test ROM
palette.nes [40.02 KiB]
Downloaded 369 times


Last edited by rainwarrior on Sat Sep 19, 2015 10:16 am, edited 2 times in total.
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 Post subject: Re: Another palette test
PostPosted: Fri Sep 18, 2015 12:27 pm 
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Joined: Sat Apr 18, 2009 4:36 am
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Location: Russia
Thank you, RainWarrior.
It's very valuable ROM for emphasis bits test.


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 Post subject: Re: Another palette test
PostPosted: Fri Sep 18, 2015 4:59 pm 
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In response to a request in another thread, I've made a simple ROM for displaying a full-screen colour. (No special tricks, should run on any NES, NTSC or PAL or whatever.)

You can select any of the 64 entries, toggle emphasis and greyscale bits, and hide the display if you just want a full screen of a single colour.

Attachment:
File comment: Color test screenshot
color_test_screenshot.png
color_test_screenshot.png [ 1.61 KiB | Viewed 3208 times ]


Attachments:
File comment: Color test source files
color_test_src.zip [5.12 KiB]
Downloaded 131 times
File comment: Color test ROM
color_test.nes [40.02 KiB]
Downloaded 385 times
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 Post subject: Re: Another palette test
PostPosted: Sat Sep 19, 2015 12:53 am 
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Joined: Sat Apr 18, 2009 4:36 am
Posts: 260
Location: Russia
Rumata gave me RP2C07-0 - PAL PPU chip of NES French version
(PPU itself output is standard composite signal, but finally converted to RGB by special decoder on French NES mainboard)

So, i've installed it to my Hybrid/Dendy famicom:
Image

https://youtu.be/jY8Jb1uQEcc

Red/Green Emphasis bits are swapped.
Waiting for decap this chip soon.

P.S. I will give this chip to decapper man very soon, tomorrow or day later.
I can do some tests for today, if you want it.

About you first ROM:
RainWarrior wrote:
I would not expect it to run properly at all on a PAL NES, but I think it will work with Dendy.

It work perfect on Dendy.
But looks top-shifted when i run it on "Dendy CPU + PAL RP2C07-0" bundle. The upper part is out-of-screen.


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 Post subject: Re: Another palette test
PostPosted: Sat Sep 19, 2015 3:53 am 
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Joined: Tue Apr 19, 2011 11:26 am
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Location: RU
Implemented this swap for PAL filter in the latest fceux revision. I wonder if we shall do it for PAL/Dendy region mode in general.


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 Post subject: Re: Another palette test
PostPosted: Sat Sep 19, 2015 9:00 am 
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Joined: Fri Jun 15, 2012 10:12 am
Posts: 8
Hi.

I've just took a closer look on the palette example. It's seens, by reading the code, that there is a missing 'test.chr' file, due to lines 24 and 25 on palette.s file.

; CHR ROM
.segment "TILES"
.incbin "test.chr"
.incbin "test.chr"

Congrats for the demo


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 Post subject: Re: Another palette test
PostPosted: Sat Sep 19, 2015 10:17 am 
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Joined: Sun Jan 22, 2012 12:03 pm
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Location: Canada
Sorry about that, added it to the ZIP.


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 Post subject: Re: Another palette test
PostPosted: Sat Sep 19, 2015 1:31 pm 
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Joined: Fri Jun 15, 2012 10:12 am
Posts: 8
No problem at all. Just trying to help!


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