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Homebrew Projects • Re: Space Mutants 2
Hey guys! Thanks to @NEStor and a couple of common, really basic level hints, such as the fact that JMP has an indirect memory access mode, the only 6502 operation that has such a thing, I've finally...
View ArticleNESdev • Custom NES Rom - Plays Music with Menu
It's a very simple idea but am not able to do it myselfIs there a hobbyist out there or NES Maker Veteran who can make a custom rom ?It would just be a menu and play music I have created for a new...
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NES Hardware and Flash Equipment • Re: Help requested for dumping Subor...
The best way is to modify the cartThis also solves the non-compatability issue on the early famiclones.This is the typical later Waixing MMC3 variant, which is usually only compatible with NOAC, and...
View ArticleNES Hardware and Flash Equipment • Re: First attempt at fixing a...
The SRAM chip was probably bad from the beginning, and it is the real reason the machine isn't working. It seems to be a relatively common failure and replacement should bring it to life, assuming the...
View ArticleNESdev • Re: Variable Width font technique from NES Celeste Port
Oh yeah, I used this technique in an unreleased demo back in 2010 already. This can do VWF but also wireframe graphics and other animations. I did this to make a text with moving letters (but more...
View ArticleNESdev • Re: Custom NES Rom - Plays Music with Menu
What software have you been using to compose the music? The method of creating a player program depends on the complexity of the music you want to include. Here are some examples:Vanilla FamiTracker...
View ArticleNESemdev • sbc produce carry flag
Now, I developing emulator nes for my https://flathub.org/apps/io.github.xver ... riteEditor application and more.In a game "mario bros" after sbc $01 where value is #$00 and carry flag is 1, fceux...
View ArticleNESemdev • Re: sbc produce carry flag
Fixed, that is right?Code: static void repetitive_acts (struct NESEmu *emu, uint8_t flags, uint8_t *reg, uint8_t result, void (*eq) (uint8_t *r0, uint8_t r1), uint16_t cycles_and_bytes){ struct CPUNes...
View ArticleNES Hardware and Flash Equipment • Re: What's the purpose of this wire coming...
That's actually the PPU, not the CPU. The wire is connected to pin 18, which is the clock. I don't know why it's there and I can't really tell what it's connecting to on the board.I believe the Hi-Def...
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Reproduction • Schottky Barrier Rectifier Diode , size 0603
Hello,I'am looking for my battery circuit Schottky Barrier Rectifier Diode in 0603 size.With one SRAM like for exemple LY62256SL that Standby power needs 0.2VI found this one : SD0603S040S0R2 Not sure...
View ArticleReproduction • 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...
View ArticleSNESdev • Re: vbcc optimizing C compiler now with SNES/65816 support
This may be interesting, what is the license of your compiler?Can we use it without restriction for paid software?vbcc is free for non-commercial use. If you want to use it for a commercial...
View ArticleNES Graphics • Re: How tiles choose their palete?
Oh it's really an easy one!Sprites choose the palette based off of an attribute.Background chooses the palette based off a VRAM record somewhere at the end of nametable, like 23C0 something like that....
View ArticleNESemdev • Re: Artifacts when switching games with the power on
Toploaders (Famicom and Top-loading NES) got all the cool and exciting effects from pulling out cartridges or resetting the system. Such as a frozen frame (where the CPU cannot affect what the PPU...
View ArticleNESdev • Re: LDA Immediate taking 6 cycles
Thank you very much for helping. I was really stuck on this one.Statistics: Posted by minhmxc — Fri Jan 31, 2025 6:23 am
View ArticleSNESdev • Re: 64KB wram & 128KB vram, Was it a mistake?
Yes, it's great for the BG, but I don't necessarily see the point, do you find that SNES games have poor backgrounds with the current 64 KB?Statistics: Posted by Kannagi — Fri Jan 31, 2025 8:58 am
View ArticleNES Hardware and Flash Equipment • Re: Discrete mapper #069 (Honoo no...
I'm interested as well!Statistics: Posted by borishim — Fri Jan 31, 2025 10:51 am
View ArticleNES Hardware and Flash Equipment • Re: NESE-001 PIN21 voltage to high - No...
Okay, thank you all. I looked for the voltage ranges of s-video-out to see what to expect and saw that its around 0.3 and 0.7 so thats why i was worried about it. So i guess i am going to buy a...
View ArticleNES Hardware and Flash Equipment • Re: What are the best NES flashcarts for...
Looking for some in case I will ever make something that would warrant (limited or not) mass production of carts, but stuff is either out of stock (Muramasa, which has PCBs available, but chips are...
View ArticleOther Retro Dev • Re: Hacking the Wii U Gamepad
100MHz is a lot, and the display is probably a lot better than Sony's 32x32 pixel Pocketstation.Being compatible with normal access points would be certainly nice!The initial installation with needing...
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