Homebrew Projects • Re: Squirrel Domino: Dr. Mario clone
That's OAM decay. Mesen2 is a bit aggressive when it comes to emulating this but it does indicate that OAM DMA is being skipped on frames when they should have been placed offscreen.Statistics: Posted...
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NESemdev • Re: Calculating Approximate Frequency of Noise Channel
So am I correct in understanding that the pseudorandom cycle period (93, 31, 32767) is more important than the average period that I calculated?Should the equation look like this?1789773 Hz/(93 * 2 *...
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NES Hardware and Flash Equipment • Re: Developing Famicom Network System...
I think I have this pretty much done now. I have one concern, about data retention of the UT62256 SRAM when powered from the battery:I am running both /CE and /OE from the CPLD, which is kind of...
View ArticleNESemdev • APU Frame Counter write jitter is causing 3-nmi_and_irq.nes and...
Hi All,I'm trying to get the cpu_interrupts_v2/rom_singles/3-nmi_and_irq.nes and blargg_apu_2005.07.30/08.irq_timing.nes tests to pass in my emulator. The problem is that when the frame counter write...
View ArticleSNESdev • Re: 50-60hz multiregion mod on PAL 1chip snes console
Hey I know this is a old topic but just came across it now. I was wondering about the back panel photo seem to be 3 resistors and a couple of other wires soldered on there, are they necessary? As the...
View ArticleNES Hardware and Flash Equipment • Re: Another NESRGB Issue
I edited the post since the second video was wrongStatistics: Posted by santiac89 — Sun Apr 21, 2024 2:47 am
View ArticleNES Graphics • Re: NEXXT - a newer "NES Screen Tool"
Not to mention that a lot of Sunsoft games use three layers of metatiles, such as Madoola, Blaster Master, Journey to Silius, and Ufouria. (See ndiddy's interview with Kenji Sada.)Statistics: Posted...
View ArticleNES Hardware and Flash Equipment • Re: ENIO - NES Ethernet & USB KB Adapter
What happened to the project Chykn? I have a couple ENIO boards myself but never was able to get ahold of the companion board (CPU board) I also would like to interview you for my YT channel,...
View ArticleGeneral Stuff • Re: Cooks of NesDev, What's Cookin?
It's interesting how food changed on the scale of my life and experience.In my childhood (and country) boiled sausages were 'short lived' products. It was not unusual to fry some bought boiled...
View ArticleHomebrew Projects • VOTE BELOW: The NES Indie Game Hall of Fame
Change in plans! Because some folks understandably don't want to sign up for a Substack account just to vote, voting for the NES Indie Game Hall of Fame will instead occur *on-site* in three...
View ArticleSNESdev • Re: Forcing data arround in ca65?
I need help organizing WRAM in CA64: ZEROPAGE: start = $000000, size = $0100; BSS: start = $000100, size = $1E00; BSS7E: start = $7E2000, size = $E000; BSS7F: start = $7F0000, size =$10000; ZEROPAGE:...
View ArticleNES Hardware and Flash Equipment • Re: SUBOR SB97 - Famiclone with...
I am sorry for raising a dead thread.Where did you acquire this? I am extremely interested in this version with the floppy.Cheers.Statistics: Posted by TheSmoothOperator — Mon Apr 22, 2024 12:18 pm
View ArticleSNESdev • Re: Trying to make the backmost sprites drop out first.
Since entire 32x32 disappearing is extremely noticeable I decided to replace them with 4 16x16s, by replacing the OAM entry with a 16x16 sprite, and appending 3 16x16 sprites at the end of OAM.However...
View ArticleNES Hardware and Flash Equipment • about mapper 518 AKA Subor Educational...
Code: PRG-ROM Bank Register ($5000)Bit 7654 3210 REPP PPPP ||++-++++- Select 16 or 32 KiB PRG bank at CPU $8000 |+-------- 0: Bank comes from main cartridge(don't care this bit, never used) | 1: Bank...
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NES Hardware and Flash Equipment • Re: NES to USB Keyboard interface?
I've made a testing ROM for Family Basic input, though I need to do something about spacebar, within the restrictions of Mapper 216 (so it works on my one-chip-pico). I'm planning to make a similar...
View ArticleSNESdev • Re: snes assembly - beginnings, a few questions (wla-65816)
I dropped WLA for CA65 and added the SNESGSS code.Everything is OK for now, but I often have problems with the differences between these assemblers:WLA-65816 code:Copies from Bank03 2048 bytes BIN to...
View ArticleNES Graphics • Re: Palette collection
Another saturated NTSC palette, each color value limit to 5x (wider than 15-bit color actually), just for funny, made by me. FiveReality.palStatistics: Posted by Yave Yu — Tue Apr 23, 2024 8:53 am
View ArticleNES Hardware and Flash Equipment • 132-in-1 cartridge mapper
Hi all,I couldn't resist and bought a clone console including a "132 in 1" cartridge. After digging around I could not find any information about this on the internet. Either with the name nor with...
View ArticleNES Hardware and Flash Equipment • Re: 132-in-1 cartridge mapper
This is a OneBus cartridge, mapper 256.Statistics: Posted by NewRisingSun — Tue Apr 23, 2024 5:14 pm
View ArticleNES Hardware and Flash Equipment • Re: about mapper 518 AKA Subor Educational...
Once 5000.7 is set, the BIOS registers are locked and different mapper modes are recognized due to the ROM header. Other mapper IDs are emulated and only partial mappers can be implementedThis...
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