I have released v0.1.0 of homebrew SNES audio driver.

This release adds new echo instructions to audio driver, left/right channel invert and cleans up the 65816 API.

I'm also declaring the MML & bytecode assembly stable. I'm not going to change the current syntax/behavior unless there is a very good reason to do so.

https://github.com/undisbeliever/terrific-audio-driver/releases/tag/v0.1.0

Any of you have a SNES with a flash cart? The SNES scientists would like to do some science. https://nextcloud.tas.bot/index.php/apps/forms/s/TJDiEwP6J7HFfYbPRw4A7dHN

They need a screenshot at power-on and another screenshot after a few minutes, to see if it changes.

Spent some time thinking about a way to render a big wave using hdma that could work with #snesdev

Released v0.0.16 of my Terrific Audio Driver https://github.com/undisbeliever/terrific-audio-driver/releases/tag/v0.0.16
This early release fixes a major state tracking bug that can caused dropped portamento notes.
It also adds more pitch MML commands, a portamento-pitch instruction, single-note MML portamentos and a `?@` subroutine instrument hint command.
#snesdev

I'm working on my unnamed SNES game again.
GOAL: Release a demo by the end of February 2025 as practice for the upcoming 2025 snesdev game jam.

Step 1: Wipe the dungeon rooms and graphics.
Step 2: Sketch new level and overworld ideas while listening to the soundtrack @KungFuFurby generously wrote for my game.
#snesdev

Add tremolo (volume amplitude modulation) to my SNES audio driver.
#snesdev

My #SNES game handles levels in an abstract way, with things like "get level pointer for these coordinates" handled via a function pointer I can change around. That lets me have both horizontal (256x32 blocks, 2 layers) and (32x256 blocks, 2 layers), and I'm playing with seeing what else I can do with that.

Here's a 256x64 single layer level, repurposing the same 32K of space the other two modes use. I could continue on and implement lots of other permutations but I'll wait until I actually need them.

I've published a new release of my SNES audio driver.

This release fixes an unintended 1-tick delay in portamento and adds a minimum-ticks parameter to early-release.

https://github.com/undisbeliever/terrific-audio-driver/releases/tag/v0.0.13

I've released v0.0.12 of my SNES audio driver.
This new release adds 3 new ways to manipulate the GAIN envelope, each designed to simplify custom release envelopes.

https://github.com/undisbeliever/terrific-audio-driver/releases/tag/v0.0.12

I've written a blog post about how I tested my SNES controllers by writing a test ROM that rapidly reads the controller data every scanline to detect button stability and measure contact bounce.

https://undisbeliever.net/blog/20240929-joypad-bounce-tests.html

SNESdev daily log 25:
Wrote a test ROM that reads and displays 12 bits of joypad data every scanline.

I was curious about the state of my controllers.
I knew the start/select buttons on this controller are bad. The two purple lines show lots of bouncing and unstable output.
This test also confirms I have phantom inputs on the d-pad. In the 3rd image I'm only pressing left and down is briefly and unstably illuminated.

(screenshots recorded on my 1-chip Super Famicom console)

I have finally released a new build of my unnamed-snes-game.
This release adds music by KungFuFurby and fixes the two oldest bugs in the game.
(For those who have played my previous demo - the dungeon and the enemies are unchanged.)

https://github.com/undisbeliever/unnamed-snes-engine/releases/tag/tech-demo-alpha-v3

Oh gosh what am I doing?
#snesdev #snes #retrogamedev #promotionng

SNESdev daily log 1:
Increased the number of music channels from 6 to 8.
When a sound effect is playing, music channels G and/or H will be ducked (temporally muted).
#snesdev

I finally went through and updated all the player graphics in my game. I've had some tweaks I wanted to make for awhile but updating every animation definitely takes a bit! I'd like to maybe make her look more expressive later too, and add tail more movement.