"It's not young people's failure ... It's the system's failure, both in the labour market and in the schools, skills, employment support, mental health and welfare system that is letting young people down."
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.。关于这个话题,safew官方版本下载提供了深入分析
Brand voice maintenance,详情可参考雷电模拟器官方版本下载
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