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Author Topic: CEmu  (Read 32328 times)

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Offline Adriweb

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Re: CEmu
« Reply #30 on: January 06, 2016, 05:39:25 am »
What about using the address to the Nspire's LCD buffer directly as the CE's? Otherwise, that's pretty cool.
Yeah, I ended up telling the Nspire's LCD controller to directly get its data from the CE's VRAM.

Quote from: DJ Omnimaga
Did it require many modifications, by the way?
Not much at all, that's the nice thing about the core being well separate from the rest. I put some code here: https://tiplanet.org/forum/viewtopic.php?short=1&p=194523#p194523
We'll have to decide/find a way to cleanly integrate different targets (desktop, mobile/tablet, web, nspire) to the build process...
« Last Edit: January 06, 2016, 05:59:50 am by Adriweb »
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Offline xlibman

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Re: CEmu
« Reply #31 on: January 07, 2016, 05:25:38 am »
Yeah that would be better for when Mateo fixes bugs. Imagine having to update multiple versions everytime there are bug fixes. >.<
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Offline Adriweb

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Re: CEmu
« Reply #32 on: January 08, 2016, 05:21:09 am »
I've also ported it to the Apple Watch :)

Quote
This is an Apple Watch.
And it's joining the club of devices capable of running CEmu \o/



  • Sorry for the bad quality :P
  • Yes, I know, the colors are messed up, I probably shifted some RGB bits a bit too hard, I'll fix that soon...
  • Yes, it's running natively on the watch, not on the iPhone.
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  • If/When a download gets available, it will be here: https://github.com/MateoConLechuga/CEmu
Video showing the speed:


Source: https://tiplanet.org/forum/viewtopic.php?f=41&t=17746&p=194641#p194641
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Offline Juju

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Re: CEmu
« Reply #33 on: January 08, 2016, 07:07:17 am »
The future is here, guys. You can now have a graphing calculator on a watch. That's... pretty useless, with no input... Still, that's pretty nice.
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Offline xlibman

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Re: CEmu
« Reply #34 on: January 08, 2016, 08:15:35 am »
That is awesome Adriweb. I wonder if it could be ported to iOS easily, especially with their restrictions on emulators and stuff in the past (are those still active?)
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Offline Adriweb

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Re: CEmu
« Reply #35 on: January 08, 2016, 08:25:34 am »
The emulator (etc.) restriction is only for the App Store. Doesn't matter if you don't plan to distribute your app there (it's now free to run your own compiled apps on your iOS device, so... there's that)
But it runs perfectly on iOS (The Qt version directly, like on Desktop) already (especially on iPad with the bigger screen) :)
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Offline xlibman

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Re: CEmu
« Reply #36 on: January 08, 2016, 08:26:51 am »
Ah ok, so this is a Cydia program? (or whatever jailbreak tools are called now. THe last time I used an iPod Touch we used Cydia and I had to reformat my phone twice in a week)
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Offline Adriweb

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Re: CEmu
« Reply #37 on: January 08, 2016, 08:30:25 am »
Nope, no jailbreak required, as it doesn't do anything out of the ordinary :)
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Re: CEmu
« Reply #38 on: January 08, 2016, 12:17:09 pm »
That is awesome Adriweb. I wonder if it could be ported to iOS easily, especially with their restrictions on emulators and stuff in the past (are those still active?)

The restriction you're probably thinking about is that a JIT isn't possible on iOS without jailbreak, as a program isn't allowed to map memory with PROT_EXEC.
CEmu doesn't have a JIT, so it is fine.
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Offline xlibman

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Re: CEmu
« Reply #39 on: January 09, 2016, 04:38:12 am »
Ah I see. Back in the days, I thought, however, that it was against the appstore rules to publish apps that contains a programming language, such as a TI-84 Plus emulator. But I guess this either changed or TI received a special treatment with TI-Nspire iOS app.
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Offline Adriweb

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Re: CEmu
« Reply #40 on: January 09, 2016, 07:25:55 am »
It's because it's not an emulator at all, rather the whole natively compiled phoenix engine + a native UI :)
Like TINCS.
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Offline JosJuice

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Re: CEmu
« Reply #41 on: January 09, 2016, 05:25:24 pm »
Emulators are allowed on the App Store, but they're not allowed to load ROMs provided by a user. That essentially means that the only allowed way of loading ROMs is getting permission from the copyright holder to distribute the ROMs on the App Store. There are some classic games that have been released in this way.

What Adriweb is also true. The TI-Nspire software doesn't need to emulate the TI-Nspire hardware.

Also, DJ Omnimaga: With iOS 9, that something can't be in the App Store doesn't necessarily mean that it requires a jailbreak. Apple added the ability to sideload apps so you can install whatever you want (as long as it doesn't have something like a JIT), but I think you need to set up a developer environment on a Mac before you can use it.
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Offline xlibman

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Re: CEmu
« Reply #42 on: January 09, 2016, 10:37:57 pm »
Oh I see now. That's cool that they lifted some of their restrictions. Using an iOS device in the past seemed like living in North Korea: You were restricted with anything and the minute you tried to circumvent restrictions, you were "punished" for doing it (by being forced to reformat your phone because once jailbroken it had 50% chances of suddenly being one step close to bricked for absolute no reason)
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Offline xlibman

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Re: CEmu
« Reply #43 on: January 11, 2016, 11:14:57 pm »
So I finally tried this and was happy that it came with a ROM dumper built-in. Very good job so far, as it was quite easy to get to run and I could also run games flawlessly. My only gripe is that the 2nd key is not mapped to Shift like in WabbitEmu, but I guess that can be changed easily.

Test screenshot (set at lowest frame rate for size reasons):


EDIT: Another issue is that it doesn't remember the last directory when sending files, which can get annoying. And when I opened the setup screen, hitting cancel (the X button at the top) caused a RAM reset.
« Last Edit: January 11, 2016, 11:18:16 pm by DJ Omnimaga »
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Offline Ivoah

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Re: CEmu
« Reply #44 on: January 11, 2016, 11:25:32 pm »
Oh I see now. That's cool that they lifted some of their restrictions. Using an iOS device in the past seemed like living in North Korea: You were restricted with anything and the minute you tried to circumvent restrictions, you were "punished" for doing it (by being forced to reformat your phone because once jailbroken it had 50% chances of suddenly being one step close to bricked for absolute no reason)

Have you actually used a jailbroken iDevice? I jailbroke my my iPad, and have never had issues, nor have I ever heard of other people having issues with jailbroken devices. Also, I highly doubt that CEmu (or Firebird) would be allowed on the appstore, because it is an emulator. It's easy enough to get it on an iDevice though if you have a mac, because you can just build the program yourself and put it on as a testing thing.
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