How is this horizontal turning boss effect achieved?
https://youtu.be/lMbWhoaDLKc?si=UlAW7SJYATogK-wr&t=1026 (should start at 17:06)I know the example below probably uses HDMA to display certain scanlines as necessary to create the effect of the...
View ArticlePassword encryption
What password encryptions were typical for NES games?I'm in the process of doing my own source code for password generation. As a first step, I put the corresponding gameplay variables into a simple...
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Mapper 212 or SCH
Hello!I would need a wiring diagram for the next cartridge.Can someone help with this? 10000000-in-1 (Mapper 212).nesStatistics: Posted by Killbox91 — Thu Jun 27, 2024 10:58 am — Replies 1 — Views 76
View ArticleHuman-Readable SMB Levels
Hello, just wanted to share some recent work on my SMB meta disassembly and get thoughts on how usable something I've put together is.So one of my goals in setting out on this was to ensure as much of...
View ArticleSteamed Hams
Well I wanted to learn about mappers, so I took the samples from the Steamed Hams episode of the Simpsons to see how big the rom would be. Ended up as a 2mb rom, only about 1.3mb is actually used.At...
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Weird 72pin cartridge with QFP13x19 chips
Anyone guessing what it might be?Source:https://www.videogamesage.com/forums/to ... cartridge/Someone claiming it might be Hwang Shinwei's something, looking at theCode:...
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(mod edit:) NES palette has no browns?
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...
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Help editing tiles in NES ROM's (I am currently using FCEUX)
I'm interested in editing the "tile" used at a certain location, I'll use Castlevania III as an example of what I am attempting to do/learn here.Upon entering the swamp area there is a tree displayed...
View ArticleSuggestions for map compression
Hi,I'm working on converting a 16x15 tile map into a 32X30 one I can load into a namespace. However, I'm running into some issues when I try to make it work, since I have to put two 8X8 tiles on one...
View ArticleFCEUX debugger search feature
Is there a search feature in FCEUX debugger?Statistics: Posted by AstarOfDavid — Tue Jul 02, 2024 11:22 am — Replies 2 — Views 56
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Murder in the Maze
hi all, I just published my first game / engine demo / digital collage Murder in the MazeI think of it as basically Wreck It Ralph meets Naked Gun meets Barkley, Shut Up and Jam: GaidenIf you find any...
View ArticleHow to Assemble Two or More ASM Files Using X816?
Is there any way I can use X816 to assemble two or more files? This is what I want to do to expand the standard 40KB ROM for Super Mario Bros., which has the NROM mapper. While I know MMC1 was usually...
View ArticleIs it possible to create cartridge with PRGROM only?
Is it possible to create cartridge with PRGROM only?Statistics: Posted by owasikohu — Fri Jul 05, 2024 7:32 am — Replies 3 — Views 125
View ArticleDescending Loop Termination: BPL or BNE?
A lot of tutorials about looping in descending order use BPL, like so:Code: LDY #$13@loop: LDA apu_regs_init,Y STA $4000,Y DEY BPL @loopNow, personally I would normally choose BNE instead because in...
View ArticleIRQ behaviour
Almost every game starts its code by doing SEI CLD, but let's assume we have such simple program like that:Code: .SEGMENT "CODE"STARTUP = resetreset:jmp resetnmi:rtiirq:rti.SEGMENT "VECTORS".word...
View ArticleNewline when writing text as background tiles
Hello, all! I'm sure this is a solved problem but I'm not sure what the best practice is.I have a simple routine that writes text (dialogue, story text, whatever) to the screen using background tiles,...
View ArticleThoughts on Naming Multi-Use Variables and Tracking Reuse?
This extends beyond Famicom/NES programming but that's certainly the context I'm dealing with it in these days.In the course of disassembling various titles, I've often found some variables in the...
View ArticleTrying to remember an old ROM
So a memory popped into my head, and it's driving me insane, LOL. It's entirely unimportant, but I figured I'd just ask if anyone else remembers.It was a test ROM, which I could have sworn was just...
View ArticleHelp - Porting PC RPG Maker Game to SNES
Hello!Looking to port two Homebrew Video Games Made on RPG Maker 2003 + RPG Maker XP to the SNES Console.Yes - I own the Licenses - Yes - they are original Video Games.Does anyone here know where I...
View ArticleNew Famicom AV PPU Variants?! (RGB Blaster compatibilty)
hi there,I was wondering how big of a lottery it is without having a picture of the actual PPU inside when buying an japanese AV Famciom ?or are the RGB BlasterIncompatible ones rather in the US...
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