[Solved] Can anyone with SPC700 experience tell me why my SPC loader doesn't...
I've been reading up on the SPC700 and I have a pretty good understanding of how it works. So now I've attempted to create an SPC player but I can't get it to make any sound.I've followed this example...
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SMB - 128 Lives Display Fix?
Here is the trouble I am having trying to make this Super Mario All-Stars-related fix work for the NES Super Mario Bros.This is the code in question:Code: ;$00 - for storing hundreds digits;$01 - for...
View ArticleCool special effrects of FFVI - how are they made?
The special effects in FFVI are some of the coolest from that era.I especially like the amorphous effect (for lack of a better term) like Banish/X-Zone:https://youtube.com/clip/Ugkxxj4MDjODd- ......
View ArticleFunction pointer using cc65 ?
Hello everyone,Has anyone managed to get function pointers working using C on CC65 ? Is it actually possible ?If so do you have an example ?Thank you.Statistics: Posted by dttdndn — Mon Mar 18, 2024...
View ArticleELI5: What can the NES HUB do?
Beyond the stated uses in the article, what sort of things do you imagine or expect the NES HUB to be able to do? I see someone in the X/Twitter thread asking about support for a disk expansion system...
View ArticleWiki: 6502 assembly optimisations - possible mistake
Hi, first post here.I have noticed what could be an error in this section of the wiki: https://www.nesdev.org/wiki/6502_assemb ... th_ADC/SBC.The part that reads:When it is known that carry is clear,...
View ArticleVs. System Palette Implementation?
So I've worked Vs. SMB into my SMB meta-disassembly and currently am just defining the alternate palette stuff with the same palette constants I'm using for the 2C02. However, these are completely...
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Forbidden Four: Space Bounty
Quite a while back I got interested in multicarts and came across Forbidden Four by tepples. I decided to give it a shot and modify it to work with Metroid, bundling along with it Space Invaders,...
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Buggy background rendering
I am writing a NES emulator in Rust programming language. CPU is fully complete - the emulator passes the kevtris nestest ROM.However, I have some trouble emulating the PPU. I am stuck at some strange...
View ArticleFamily BASIC on the FDS, from the 80's
If you're going to make a Disk Operating System for the FDS, you might as well port Family BASIC to it. Backwards compatibility with user programs on tape would have been a consideration if it was...
View ArticleVortex
Could the game Vortex be altered, having the Super FX chip changed from GSU-1 to GSU-2?I could not find information about it anywhere and it may be a silly question (sorry about it). I also know that...
View ArticleSuper NES Programming - Loading SPC700 programs
I would like to load an SPC file using the code from this site:https://en.wikibooks.org/wiki/Super_NES ... 0_programsThe compiled code (WLA-65816) does not work, black screen and nothing else.Anyone...
View ArticleHelp with 2-byte indexing lookup table
Hello,I am going through some code from the "Nerdy Nights" tutorial. In it there is a piece of code that I am having trouble understanding, which uses a 2 byte lookup table for indexing.Here is part...
View ArticleMMC5 Hacking binge, found a few things.
I took a long break from this place. We just had a big snowstorm here, and in preparation, I made a new test setup that allows me to run an MMC5A in an NES with easily reprogrammable ROM and easily...
View ArticleUsing sim65 To Test ASM
Figured I'd make an informational post since I had to piece this together from documentation and just some plain old experimentation. Sim65 is the 6502 simulator packaged with the cc65 development...
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Please help with error Burn-in test CG RAM error SNES
Hello, can someone guide me with this error? I have passed the Burn-in test and I get CG RAM error. I don't know what I should do or replace to fix it because I don't know what it refers to....
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My SNES SDK
Hello,I present my SNES SDK.Even though my SDK seems to attract interest, I know that probably no one will use it unless I release games with it.The reason is that I don't use C, but a language that I...
View ArticleHow to wait for "sprite 0 clear" state in MMC5 without using sprite 0?
Hello! MMC5 has a "Scanline IRQ Status ($5204, read/write)" register, whose reading is defined as:Code: 7 bit 0---- ----SVxx xxxx MMC5A default power-on value = $00|||+-------- "In Frame"...
View ArticleVoltage converter questions regarding the NES
I live in Germany, but I use an NTSC NES and an NTSC CRT TV for gaming. No modded NES, no multi-region TV. I'm talking about an actual American NES and an American TV, both bought at eBay directly...
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Is it possible to run a game without SIC?
I bought a batch of Super Nintendo cartridge PCBs from a street seller. One of PCBs came without SIC chip.My Super Nintendo is unlocked, so I can play pirate games on it. Despite this, the board...
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