ld65 config file for fds
I do understand that another forum, viewtopic.php?t=15789, has a solution for an ld65 linker. However, it only shows an example, and when I ran the example for the smbann disassembly, it did not...
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Centipede clone
I'm learning a bit of 6502 assembly and made a Centipede clone. It's very basic so far, there was not much creativity since I was just making a clone, but I've gotten to the point where I feel a lot...
View ArticleMMC3 IRQ timing
Im working on an FPGA-based NES emulator project: https://github.com/jpdoane/nesfpga. The basics are mostly functional and Im now working on bug fixes and adding more mappers. Ideally I'd love to...
View ArticleLegality of Security Codes in Retro Games
Good morning, been thinking about this one this morning and wanted to get some opinions. Contrary to some folks popular belief, I do understand you don't just share arbitrary IP data, and as such, in...
View ArticleSuper famicom motherboard and power input jack swap
Hello all,I recently decided to buy a working Super Famicom motherboard in order to use it inside my NA (North America) Super Nintendo shell. However, I still want to keep the overall feeling as close...
View ArticleHaraForce V1.00 with MMC5
Hello Everyone, I need help with finding a nes rom call HaraForce V1.00 with MMC5 (2022) i been looking for it for a while now and nothing since i am a bit confuse with the (MMC5) i really do not know...
View ArticleSuper Mario Bros. FDS disassembly
So, I want to create an FDS disassembly of Super Mario Bros. It is mentioned in https://github.com/htmlcoder2023/mario- ... collection as one of the versions not included of Super Mario Bros. However,...
View Articleindirect zeropage, how to explain?
Code: X,indX-indexed, indirectOPC ($LL,X)operand is zeropage address; effective address is word in (LL + X, LL + X + 1), inc. without carry: C.w($00LL + X)ind,Yindirect, Y-indexedOPC ($LL),Yoperand is...
View ArticleSuper Mario Bros. Meta-Disassembly
Got another iron in the fire: https://gitlab.com/segaloco/smbI started working up a disassembly of plain old Super Mario Bros. so I'd have code to compare for my real goal: a code-flow analysis...
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NES serial out via P2 latch ($4016)?
Hi there, First post here! And disclaimer: I'm a complete noob in both NES hardware and electronics in general, but I was hoping to get some pointers on a project I have.The context is NES Classic...
View ArticleFDS and NES ROM Dumper
Are there any ROM dumpers that support both FDS and NES?If not, how would you build a ROM dumper that supports both platforms?Statistics: Posted by asm6hackr — Wed Jan 03, 2024 3:57 pm — Replies 1 —...
View ArticleDisassembling a FDS or NES game
To create a disassembly of an FDS or NES game, you would have two choices.To reverse engineer:You would need to get any available information about the game. Glitches, unused objects, data, tiles etc....
View ArticleFDS Timer Interrupt for OS-Style Time Slices?
Is anyone aware of any FDS content (commercial titles, homebrew, etc.) that utilize the FDS's timer interrupt to time-slice operations with a scheduler of any kind? One of my many pipe-dream projects...
View ArticleYet Another Tile Editor - CrispNES
Long time lurker, first time poster.I've been interested in getting back into some game dev after a number of years absent, and somehow my brain latched onto NES as the platform to jump in on....
View ArticleSnes only showing background
Hi!I bought a used snes for cheap knowing it had a problem. The problem is that it won't show the sprites ( I hoped I used the correct word for that. The characters you control when playing are not...
View ArticleGraphical issues with Super Mario 1 and 2
https://imgur.com/a/PSOwRTlI've got a Mario 1 / Duck Hunt cartridge and a Mario 2 cartridge that are having some weird graphical issues. Mario 1 has most of the background appearing black, and Mario 2...
View ArticleFamicom having trouble mising audio
Hi all,I have a Famicom that I was previously able to refurbish and AV Mod. The only thing that was wrong with it was that the controller P1 wasn't working.I desoldered U7 and U8, added sockets and...
View ArticleFast Sprite Shrinking Demo
Hey, Lex here. Lately I've been working on a demo showcasing fast sprite shrinking on a stock SNES. In this demo, you willsee two smoothly shrinking 64x64 sprites. Is it real time sprite shrinking?...
View ArticleHow did people dump FDS and NES ROMs before the first modern ROM dumpers were...
I know of three modern ROM dumpers1. INL Dumper-Programmer (beta release 2018, nothing since then)2. Retrode (out of stock right now)3. Sanni's cartreader (can buy for $250 or build yourself)but that...
View ArticleDistributing build dependencies of version-controlled NES projects
I started this topic to seek clarification of segaloco's thoughts about including executable build tools in a version control system.You've included an asm6.exe file. I'd be careful with that, git is...
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