Strongly Encouraging XCode Lets Apple Switch Architectures
stevecheney.posterous.com
Strongly Encouraging XCode Lets Apple Switch Architectures
1–10 of 41 posts
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#2The part about mandating Xcode allowing Apple to switch from ARM to something else is a good point.
The part about Apple secretly running iPhone apps under an ARM emulator seems a little crackpot.
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#3I don't get it. As long as an ARM binary or a 'Super-Secret A4 Architecture' binary is produced, who cares? I can write Objective C code in TextMate and then use xcodebuild from the command line to build a fully functional iPhone or iPad app.
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#4The part about mandating Xcode allowing Apple to switch from ARM to something else is a good point. The part about Apple secretly running iPhone apps under an ARM emulator seems a little crackpot.
The article seems to insinuate that everything on the iPad runs under an ARM emulator. It would make more sense that OS version 3.2 running on the iPad is already compiled for the A4 (hence the astonishing speed), and only iPhone-native apps were emulated.
But you're right, it does seem a little crackpot. Couldn't someone decompile an iPad executable and see if it's ARM code or not?
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#5The part about mandating Xcode allowing Apple to switch from ARM to something else is a good point. The part about Apple secretly running iPhone apps under an ARM emulator seems a little crackpot.
The article seems to insinuate that everything on the iPad runs under an ARM emulator. It would make more sense that OS version 3.2 running on the iPad is already compiled for the A4 (hence the astonishing speed), and only iPhone-native apps were emulated. But you're right, it does seem a little crackpot. Couldn't someone decompile an iPad executable and see if it's ARM code or not?
It is. Even the kernel.
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#6Unless I'm missing something, Apple didn't mandate that you need to use XCode. They said that you need to "originally write" apps in C, C++ or Objective-C. You can do that without using XCode, and conversely you can use XCode to compile something that's not "originally written" in one of those languages (by using C as an intermediate language).
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#7Nobody is mandating XCode. You can use any editor you want as long as your code is C, C++, Objective-C, or Javascript.
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#8[deleted]
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#9I was under the impression that the A4 chip had been cut up, put under x-ray, etc and looked to be a fairly standard chip... not a C2D or similar.
Re: Strongly Encouraging XCode Lets Apple Switch Architectures
#10Earlier quoted context omitted.
The article seems to insinuate that everything on the iPad runs under an ARM emulator. It would make more sense that OS version 3.2 running on the iPad is already compiled for the A4 (hence the astonishing speed), and only iPhone-native apps were emulated. But you're right, it does seem a little crackpot. Couldn't someone decompile an iPad executable and see if it's ARM code or not?
It is. Even the kernel.
Ah, but that doesn't matter, because they're emulating ARM, you see.