EmuDevz news & patch notes

Here's a quick update with this month's changes.

UX:

• Updated FAQ

• Added a warning if some emojis aren't supported

• Nametable inspection now works while the debugger is paused

Improved docs and explanations:

• Explained how to edit files in 5a.16

Improved tests:

• Added a test ensuring onFrame(...) is called at the right time

• Added an extra Noise Channel test

• Added a test ensuring CPU::step() doesn't crash if logger === undefined

Fixes:

• Prevented closing video or audio test subpanel while they are running

• Fixed Ctrl+C not working in CodeMirror while ImGui is running

• The game now waits for BrowserFs's AsyncMirror to sync before navigating (fixes potential snapshot corruption)

• Fixed example code in level 5b.10

• Fixed a bug in the "Golden log" level: it wasn't catching the golden-log-end event while the cpu-bug-unexpected dialogue was being shown

Here's a quick update with this month's changes.

UX:

• Also trigger the Dumper achievement when using drag and drop

• Forced full reload after running the emulator (fixes some performance issues)

• Disabled mouse back/forward buttons on desktop

• Music files now resume from the saved second on the desktop version

• Allowed removing the leading zeros in binary mode when using the Calculator

New advanced options:

• Added an advanced option to play audio tests

• Added an advanced option for an "instant" chat speed

• Added an advanced option to prevent full page reloads (old behavior)

Improved docs and explanations:

• Made 5b.9 help more explicit

• Clarified where to step the APU frame sequencer

• Added debugging tips to the help command

• CPU instruction docs: added an asterisk to all conditional jumps so the bottom warning is easier to find

• Added screen size clarification

• Added sprite priorities clarification

• Added a clarification about Sprite::tileIdFor(...) in 5b.16

• Added documentation for advanced settings to the repo's docs/ directory

• Updated the FAQ

• Removed a redundant check in sprite evaluation

Improved tests:

• Added an extra APU test that checks when the frame sequencer is stepped

• Added an extra VBlank test

• Tested more SBC edge cases

• Made IRQ tests less white-box

• Updated tests to use equalBin / equalHex when values are 0b... or 0x..., so expected values display properly

Fixes:

• Fixed the wrong URL when going home

• Fixed focus issues on levels that open the emulator

• Fixed 'Name too long' when listing /code on some snapshots

• Fixed Ctrl+Z replacing the wrong file content after reordering tabs

• Fixed weird characters showing up in test names

• Fixed a bound-check bug in the fake memory used by the assembly lesson (it was incorrectly blocking address $0000)

• Fixed name_tables.png having the wrong address

• Fixed indentation in 5c.4

• Fixed caret not moving to the end of the terminal input before autocomplete

Hi! Some of you asked me if I could share what's changed lately, so here I am.

This game is open-source and both the Web and Steam versions are deployed automatically via GitHub Actions, so it's basically a rolling release. Usually when someone pings me on Discord pointing out an error, I fix it right away and push a new update. At any time, you can see the change history here:

https://github.com/afska/emudevz/commits/master

Features:

• Added a warning when opening snapshot files with the open command

• Added an advanced option to allow resizing panels when using a 3-panel layout

• Added advanced options to customize CodeMirror

• Added a spinner when exporting a save file

• Closing and switching tabs now behave more naturally

• Added configurable key combos

• Allowed text selection in Markdown view

• Added a "Switch Tab" combo: Ctrl+Tab and Ctrl+Shift+Tab

• Added a "Close Tab" combo: Ctrl+W

• Added fullscreen combos: F11 (Linux) and Ctrl+Cmd+F (macOS)

• Added zoom controls: Ctrl+, Ctrl-, and Ctrl+0

• Let’s Play-unlocked games are now highlighted in the NavBar

Improved explanations:

• Simplified page-cross penalty explanation

• Fixed triangle silencing instructions and mapper file links

• Improved ADC and SBC tests

• Made the 5b.23 exercise clearer

• Improved page boundary bug explanations

• Improved flags explanations

• Improved golden log explanations

Improved tests:

• Updated Cartridge tests so they catch more OOB errors

• Added additional FlagsRegister tests

• Adjusted the BackgroundRenderer test so it doesn’t use scanline -1

• Improved updateZero and updateNegative tests

• Cartridge tests now use a 16-byte header

• Level 2.6 now compares assembled code case-insensitively

Emulator fixes:

• Fixed a wraparound bug in palette indices

Fixes:

• Fixed a bug in the audio tester where it didn’t check NaN values correctly

• Stopped spamming "Resizing is not supported while typing" when the prompt is empty

• Fixed the debugger breaking when using .org $4020

• Fixed the diff viewer being off-center

• Fixed a formatting error in the find command

• Fixed file search not responding to Enter if Down/Up was pressed while displaying the file tree

• Fixed disabled-state issues with the Run button

• Enter now works when the game says "Press any key to continue"

• The "Window too small!" error now hints how to zoom out

• Fixed the game creating ghost Alt+Tab entries on Windows 11