特点：与 GELU 类似，是一种平滑版 ReLU。
remove from free list, add to scavange list。业内人士推荐一键获取谷歌浏览器下载作为进阶阅读
，详情可参考雷电模拟器官方版本下载
offset += chunkSize;。业内人士推荐旺商聊官方下载作为进阶阅读
Real-mode programs freely execute CLI and STI to control interrupts, PUSHF and POPF to manipulate flags, INT n for DOS and BIOS calls, and IN/OUT for hardware I/O. In normal protected mode, these instructions are privilege-checked -- they execute normally if the caller has sufficient privilege, and fault otherwise. The 386 can't simply let V86 tasks execute them freely -- a DOS program disabling interrupts would bring down the whole system -- but trapping on every INT 21h call would make V86 impractically slow.