Understanding SIMD Types in 3D/AR with ARKit

Understanding SIMD Types in 3D/AR with ARKit

simd SIMD stands for Single Instruction Multiple Data, which allows the copying of multiple operands, pronounced [洗目~底]. Taking the addition instruction as an example, a Single Instruction Single Data (SISD) CPU decodes the addition instruction, and the execution unit first accesses memory to retrieve the first operand; then it accesses memory again to retrieve the … Read more

Why Dropbox Abandoned C++ for Cross-Platform Development

Why Dropbox Abandoned C++ for Cross-Platform Development

Authors: Zhao Yuying, Xiao Zhi Recently, Dropbox announced it would abandon using C++ to write cross-platform code for iOS and Android, opting instead for each platform’s native frameworks (Swift/Kotlin), citing the high hidden costs associated with code sharing. Interestingly, in 2014, during a presentation to Facebook developers, Dropbox openly stated that writing two sets of … Read more

Getting Started with Micro:bit and Swift Playgrounds

Getting Started with Micro:bit and Swift Playgrounds

The Micro:bit Foundation has released the Swift Playgrounds program for Micro:bit, allowing interaction via Bluetooth on iPads. This program helps you learn the basics of coding while enjoying the fun that Micro:bit brings! Instructions: Install the Swift Playgrounds app on your iPad. Requires iOS 11 or higher. Supports iPad Air, Air 2, 5th generation iPad, … Read more