jos/user/badsegment.c

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2018-09-25 09:22:51 -07:00
// program to cause a general protection exception
#include <inc/lib.h>
void
umain(int argc, char **argv)
{
// Try to load the kernel's TSS selector into the DS register.
asm volatile("movw $0x28,%ax; movw %ax,%ds");
}