4 ms·

Yuzu Progress Report December 2022

42 points by DDSDev 4y ago

echelon 4y ago
[flagged]
- s9w 4y ago
  Those uninformed C++ bashes are misplaced
  - echelon 4y ago
    > Those uninformed C++ bashes are misplaced I'm a current daily Rust user and former C++ user. The opinion is formed of my own experience.
    - Kukumber 4y ago
      That's why they chose C++ over Rust, because your experience lacks writing a Switch emulator
    - bakugo 4y ago
      So why don't you rewrite the emulator in rust, then? Seems like it would be right up your alley, and rust is only used to create inferior rewrites of existing software anyway.
      - Klonoar 4y ago
        You were so close to having a witty reply but then bungled it in the last part.
  - kekkidy 4y ago
    [dead]
- 29athrowaway 4y ago
  They started from pre-existing projects: Citra (3DS), Dolphin (GameCube, Wii), PPSSPP (PSP), Gekko (GameCube) Dolphin is 19 years old, Rust is 12 years old. A used Nintendo switch is less expensive than a gaming computer.
  - aufhebung 4y ago
    >A used Nintendo switch is less expensive than a gaming computer. Clearly you never used the 'Mum I need a good computer for school' trick.
- deleted 4y ago
  [deleted]
- OatmealDome 4y ago
  With regards to 1, yes. yuzu is a fork of Citra, a 3DS emulator written in C++ that was initially released in 2014. This was done because the 3DS and the Switch are similar in some ways (for example: the Switch OS, Horizon, is a rewritten version of the 3DS OS).
- dagmx 4y ago
  As a fellow rust enthusiast, it’s disappointing to see comments like this. It’s not healthy to assume that all projects should be rust just because. This is a continuation of a project that started before Rust was 1.0, but even if it wasn’t, being based in C++ isn’t bad. Decisions aren’t made in single tech vacuums. Even developer familiarity alone is enough to pick a language, and emulators aren’t going to be security critical software and it deals heavily with pointers plus shared resources , at which point a lot of rust benefits aren’t as strong.
  - echelon 4y ago
    Not my intention here. My snarky tone was due to the lack of caffeine in my bloodstream and the number of all-nighter(s) I've been pulling. I apologize if you feel I'm doing any damage to the broader community. Not my objective at all. I'm honestly deeply interested in why projects choose C++. It's harder to teach to newcomers. I'm guessing this project shares some legacy code with Dolphin? I'm looking forward to Rust accruing enough tools to attract emulator developers. I'd be happy to put my money where my mouth is and pay for developers via sponsorship that would be willing to undertake this. I'm currently funding a lot of Rust projects that I like, and I honestly want to accelerate Rust adoption. I don't think there's a harm in that. Big projects like this would generate lots of tools, helper libraries, and other utilities for the broader ecosystem.
saagarjha 4y ago
> LTO is aggressive by nature, and there’s no guarantee that all parts of the project will react nicely to it. In this case, the problem was Qt, the UI looked completely garbled. Curious how LTO broke this…
- rowanG077 4y ago
  This is pretty damning to me. An optimization that unsound is crazy scary.
- psychphysic 4y ago
  Very interesting isn't it. So LTO would remove code it considers unreachable (but really whole functions)? And that did it rather than reshuffling code for cache purposes (which is what LTO does in my mind). Cant LTO just be turned off for the QT objects in the interim?
dang 4y ago
Related: Yuzu: Nintendo Switch Emulator - https://news.ycombinator.com/item?id=30042687 https://news.ycombinator.com/item?id=30042687 - Jan 2022 (87 comments) Yuzu (Nintendo Switch Emulator) Progress Report January 2021 - https://news.ycombinator.com/item?id=26095834 https://news.ycombinator.com/item?id=26095834 - Feb 2021 (89 comments) Nintendo Switch Emulator - https://news.ycombinator.com/item?id=25522454 https://news.ycombinator.com/item?id=25522454 - Dec 2020 (12 comments) Yuzu – Nintendo Switch Emulator - https://news.ycombinator.com/item?id=16150777 https://news.ycombinator.com/item?id=16150777 - Jan 2018 (171 comments)

42 points by DDSDev 4y ago

echelon 4y ago

[flagged]

s9w 4y ago
Those uninformed C++ bashes are misplaced
- echelon 4y ago
  > Those uninformed C++ bashes are misplaced I'm a current daily Rust user and former C++ user. The opinion is formed of my own experience.
  - Kukumber 4y ago
    That's why they chose C++ over Rust, because your experience lacks writing a Switch emulator
  - bakugo 4y ago
    So why don't you rewrite the emulator in rust, then? Seems like it would be right up your alley, and rust is only used to create inferior rewrites of existing software anyway.
    - Klonoar 4y ago
      You were so close to having a witty reply but then bungled it in the last part.
- kekkidy 4y ago
  [dead]
29athrowaway 4y ago
They started from pre-existing projects: Citra (3DS), Dolphin (GameCube, Wii), PPSSPP (PSP), Gekko (GameCube) Dolphin is 19 years old, Rust is 12 years old. A used Nintendo switch is less expensive than a gaming computer.
- aufhebung 4y ago
  >A used Nintendo switch is less expensive than a gaming computer. Clearly you never used the 'Mum I need a good computer for school' trick.
deleted 4y ago
[deleted]
OatmealDome 4y ago
With regards to 1, yes. yuzu is a fork of Citra, a 3DS emulator written in C++ that was initially released in 2014. This was done because the 3DS and the Switch are similar in some ways (for example: the Switch OS, Horizon, is a rewritten version of the 3DS OS).
dagmx 4y ago
As a fellow rust enthusiast, it’s disappointing to see comments like this. It’s not healthy to assume that all projects should be rust just because. This is a continuation of a project that started before Rust was 1.0, but even if it wasn’t, being based in C++ isn’t bad. Decisions aren’t made in single tech vacuums. Even developer familiarity alone is enough to pick a language, and emulators aren’t going to be security critical software and it deals heavily with pointers plus shared resources , at which point a lot of rust benefits aren’t as strong.
- echelon 4y ago
  Not my intention here. My snarky tone was due to the lack of caffeine in my bloodstream and the number of all-nighter(s) I've been pulling. I apologize if you feel I'm doing any damage to the broader community. Not my objective at all. I'm honestly deeply interested in why projects choose C++. It's harder to teach to newcomers. I'm guessing this project shares some legacy code with Dolphin? I'm looking forward to Rust accruing enough tools to attract emulator developers. I'd be happy to put my money where my mouth is and pay for developers via sponsorship that would be willing to undertake this. I'm currently funding a lot of Rust projects that I like, and I honestly want to accelerate Rust adoption. I don't think there's a harm in that. Big projects like this would generate lots of tools, helper libraries, and other utilities for the broader ecosystem.

saagarjha 4y ago

> LTO is aggressive by nature, and there’s no guarantee that all parts of the project will react nicely to it. In this case, the problem was Qt, the UI looked completely garbled. Curious how LTO broke this…

rowanG077 4y ago
This is pretty damning to me. An optimization that unsound is crazy scary.
psychphysic 4y ago
Very interesting isn't it. So LTO would remove code it considers unreachable (but really whole functions)? And that did it rather than reshuffling code for cache purposes (which is what LTO does in my mind). Cant LTO just be turned off for the QT objects in the interim?

dang 4y ago

Related: Yuzu: Nintendo Switch Emulator - https://news.ycombinator.com/item?id=30042687 https://news.ycombinator.com/item?id=30042687 - Jan 2022 (87 comments) Yuzu (Nintendo Switch Emulator) Progress Report January 2021 - https://news.ycombinator.com/item?id=26095834 https://news.ycombinator.com/item?id=26095834 - Feb 2021 (89 comments) Nintendo Switch Emulator - https://news.ycombinator.com/item?id=25522454 https://news.ycombinator.com/item?id=25522454 - Dec 2020 (12 comments) Yuzu – Nintendo Switch Emulator - https://news.ycombinator.com/item?id=16150777 https://news.ycombinator.com/item?id=16150777 - Jan 2018 (171 comments)