Breathing RetroLet’s Interview: Mario Memories Developer ThroughT1m3
#retrodev #nesdev #romhacking #nes #retrogaming
Let’s Interview: Mario Memorie...
Let’s Interview: Mario Memorie...
niconiconiI do not understand how the NES system bus works, even after reading multiple tutorials. Only one way to find out... #electronics #NES #NESdev
Open question in NESdev: measure the worst-case setup and hold time for the NES PPU, so we can have a proper timing diagram. Apparently it has never been done, even after we have transistor-level emulators. You need many hard-to-obtain samples across revisions and date codes, and the question only matters if your cartridge ROM is slow enough to walk on the edge of stability. This is irrelevant to emulators and 99.99% of homebrew developers with <= 150 ns chips (unless you're a stubborn developer like me who wants to bitbang the NES bus), which is why nobody has done it. #NES #NESdev
Skyboy GamesCrossing a bridge towards the final castle while carrying the requisite Macguffin sword will spark a boss battle that will open up a path to the end of the game.
#indienes #gamedev #homebrew #retrogame #nes #nesdev #indieretro #jrpg #screenshotsaturday
Damian YerrickCEASE & DESIST is a beat-em-up for NES in development by Retrotainment Games based on the art of Matt Gondek.
The playable demo has been updated with more stuff to break, a manga-inspired area, and a new boss.
https://retrotainmentgames.itch.io/cease-desist
#IndieDev #BeatEmUp #NESdev #NES #CeaseAndDesist #MattGondek
One of the earlier creatures you will encounter in Even Goblins Fall In Love is the Haniwa, an animated clay statue.
#indienes #gamedev #homebrew #retrogame #nes #nesdev #indieretro #jrpg
Here's a first look at the Jabberwock, the final boss of Even Goblins Fall In Love.
It took a lot of work and a bit of trickery to get this image into the game, but it was totally worth it.
#indienes #gamedev #homebrew #retrogame #nes #nesdev #indieretro #jrpg #screenshotsaturday
My game production super power is having a compiler that literally stops working if I try to add too many features to my game.
Here is build output for Even Goblins Fall In Love that tells me I have an estimated 958 bytes of space left in PRG ROM.
#indienes #gamedev #homebrew #retrogame #nes #nesdev #indieretro
Make Classic Games
After wrestling with 6502 and NES PPU for a month, I finally have a text-mode engine that allows me to write a bank-switching test ROM, hoped for finding the smoking gun of unimplemented 256 K mode in the mapper that crashes the game I wanted to play. Unfortunately, the tests passed with flying colors on real hardware. So it was not bank switching. Just after I ordered a 2A03-based NES motherboard clone, planning to debug this "hardware compatibility problem" further, I decided to actually read the "src" directory that comes with the Touhou NES demake. I found the game copies executable code to cartridge WRAM at startup, because it's self-modifying. WRAM is physically omitted by the cartridge design I am using, so of course it crashes... 
Half a month completely wasted. 
Lesson learned: how NOT to make a NES cartridge. Surprisingly, the game's author, in true NES hacker's fashion, has their personal CPLD-based MMC3 cartridge implementation, which was where the game was tested on. I just need to replicate the board, and the game will hopefully run. #retrocomputing #retrogaming #NES #NESdev #小霸王学习机
Half a month completely wasted. Lesson learned: how NOT to make a NES cartridge. Surprisingly, the game's author, in true NES hacker's fashion, has their personal CPLD-based MMC3 cartridge implementation, which was where the game was tested on. I just need to replicate the board, and the game will hopefully run. #retrocomputing #retrogaming #NES #NESdev #小霸王学习机
