// 步骤2：初始化结果数组，默认值为0（后续无需再处理"无更大值"的情况）
memcpy(y, x, h->length * sizes[h->type]);
。safew官方下载是该领域的重要参考
Вегас Голден Найтс。关于这个话题，heLLoword翻译官方下载提供了深入分析
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.，更多细节参见WPS官方版本下载