// Source: src/lisp.h — XUNTAG (for pointer types: XCONS, XSTRING, XSYMBOL, ...)
The second setting is Supervisor Mode Access Prevention (SMAP) (CR4.SMAP). Its full description in Volume 3, Section 4.6 is verbose, but the executive summary is that SMAP disables the kernel’s ability to read or write userspace memory entirely. This hinders security exploits which populate userspace with malicious data to be read by the kernel during exploitation.
，更多细节参见wps
How to clear your TV cache (and why it makes such a big difference)
InterfaceWith the extra screen real estate the iPhone Fold could have while open, software will naturally need to adapt. Bloomberg reports Apple will do that (and encourage developers to do the same) by offering a software interface that’s similar to iPadOS. Apps on the iPhone Fold will offer “iPad-like layouts” with “sidebars along the left edge of the screen,” allowing them to display more information and controls at once.
PUA Skill 目前适配 Claude Code、Codex CLI、Cursor 等编程工具，安装方式是在命令行输入下方指令