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Xcode

App Nap, undead and nascent apps in Ventura

If you leave some apps without an open window, macOS appears to quit them, but instead puts them into App Nap, only to quit them when it wants to. They’re undead.

January 16, 2023 Macs, Technology

Last Week on My Mac: The mobile virtual Mac

Just 4 cores and 16 GB of memory were used for the virtual machine to run Xcode and build apps successfully, but only for local testing.

December 4, 2022 Macs, Technology

From Control Panels to System Settings in Ventura

T T Read More

You can’t fail to notice changes in System Settings in Ventura, but just what has changed inside it? How do third-party Preference Panes cope?

October 11, 2022 Macs, Technology

How to recover old versions of Xcode source

Every time you save a file or build in Xcode, changed source files are added to the version database. Use this powerful tool to go where backups and Git can’t.

August 2, 2022 Macs, Technology

Last Week on My Mac: Apple to kill all support for Sierra and earlier

Apple still supports Mavericks, Yosemite, El Capitan and Sierra in Xcode, but the next version intends dropping them. Third-party developers will get the blame.

June 26, 2022 Macs, Technology

Why Time Machine backups can be interminably slow

Is it overhead from sandboxing, the file system, the throttling of I/O, or the limitations of the Efficiency cores? Is there anything a user can do?

January 20, 2022 Macs, Technology

How to get an old version of macOS, OS X and Xcode

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You might want an old macOS or OS X installer to build a Virtual Machine, or for an old Mac. Here’s how to get them, and old versions of Xcode.

December 20, 2021 Macs, Technology

Code in ARM Assembly: Lanes and loads in NEON

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How ARM64 uses its special SIMD registers in lanes, and how they can be loaded with and without de-interleaving.

August 23, 2021 Macs, Technology

How to compare two PDF documents

We often need to compare two documents, such as legal agreements or revisions of a report. How can we do this if they’re PDFs?

August 14, 2021 General, Language, Macs, Technology

Last Week on My Mac: Where’s the accelerator?

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Three recent WWDC sessions extolling Apple’s “extensive reference material” and Xcode can’t find anything on these rich and extensive libraries.

August 8, 2021 Macs, Technology

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