badsegment.c

来自「jos lab3代码」· C语言 代码 · 共 12 行

// program to cause a general protection exception

#include <inc/lib.h>

void
umain(void)
{
	// Try to load the kernel's TSS selector into the DS register.
	asm volatile("movw $0x28,%ax; movw %ax,%ds");
}