《操作系统》的实验代码。
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  1. #include <stdio.h>
  2. #include <ulib.h>
  3. /* try to load the kernel's TSS selector into the DS register */
  4. int
  5. main(void) {
  6. asm volatile("movw $0x28,%ax; movw %ax,%ds");
  7. panic("FAIL: T.T\n");
  8. }