NESdev • Re: Any reason Just Breed plays a text only intro on my early famicom?
It's been established through conversations on Discord that the cartridge PRG-RAM already contains valid save data and can be accessed just fine on other systems. The game indeed only shows the...
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NES Hardware and Flash Equipment • Re: Back to white screen on opentendo build
OK so I think if I follow what you meant about TP4, that checks out OK?Blue=M2, Yellow=A15, Purple=ROMSEL all from the 74139 chip, ROMSEL only going low when both M2 and A15 are high.That pattern...
View ArticleSNESdev • Re: Hello! SFC<->SNES project.
I saw the original post with the gerber files but, they do not work. I am looking for the files you created and mentioned you were going to be sharing on GithubStatistics: Posted by Byrneaar — Sat Feb...
View ArticleNewbie Help Center • Re: flickering problem
This is my NMI codeCode: NMI: pha txa pha tya phaINC nmiFrameCount LDA inGame ; jump to game section if ingame is setBNE gameScr loGoScr: ; titlescrn LDA namOk ;nam loading status CMP #$01 BNE @justgo...
View ArticleNewbie Help Center • Spartan X 2 Problem
Hello a have problem can anyone fix this nsf problem so that all songs play as they shouldI mean Triangle and Noise because they don't play as they should Screenrecorder-2025-02-08-20-12-59-4.mp4...
View ArticleNES Hardware and Flash Equipment • Re: NESRGB Modded System Freeze (Certain...
Another update, installed the replacement NESRGB board Tim sent me and it exhibits the same symptoms. If I bypass the mod entirely it does not freeze. With NESRGB it freezes every time in both Alien 3...
View ArticleSNESdev • Question about opaque black HUD background
https://youtu.be/vIJDenr9OtI?list=PLgzz ... 29F&t=1591With the beat 'em up game shown above, is the opaque black background of the HUD affording the SNES more time to transfer player and enemy...
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Reproduction • Re: Schottky Barrier Rectifier Diode , size 0603
I(RRM) is the reverse leakage current. The diode isn't perfect and this is what can leak through backwards, for example trying to charge your battery when the Famicom has power. I wouldn't worry about...
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SNESdev • Possible to stretch 512x224 to fit?
Is there a way on any emulators, clone systems, or even TV sets to horizontally stretch out and scale a SNES game running in 512x224 to fit the dimension of a modern 16:9 screen, having drawn the art...
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SNESdev • Re: Possible to stretch 512x224 to fit?
Interlaced mode 5 plus the TV's "zoom" mode would probably be the closest.In a scene with little motion, a decent modern TV should detect the situation and apply weave deinterlacing. If the TV is...
View ArticleNewbie Help Center • Should I use C or Assembly for NES programming?
Hi there. I wanna learn making NES games but I'm not sure which language to use.I already know programming and am somewhat comfortable writing C, I can't say the same for Assembly. I know that cc65...
View ArticleNewbie Help Center • Nametables issue
I have a problem. I have this code, that outputs nametable 0 (2), but instead shows nametable 1 (3) with a vertical offset.Using WLA-DX.I first compile into test.o, then link to test.rom, and finally...
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NES Hardware and Flash Equipment • Re: AV Famicom JIO Chip Replacement Idea
Sorry to bump this old thread but I could really use some help around this to fix my AV FamicomI recently added a new mod to my AV Famicom, the "fake stereo" audio mod...
View ArticleNewbie Help Center • Re: Nametables issue
There are two major problems I see related to scrolling. First is that you aren't actually setting a scroll position. In vblank, after you are done writing to PPUADDR ($2006), you need to set the...
View ArticleNewbie Help Center • Re: Should I use C or Assembly for NES programming?
Depends on what your ultimate goal is, I guess... C is okay for average NES games, but there definitely is a noticeable drop in performance, and you'll also face limitations imposed by whatever...
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