hi all:<div> the codes is:</div><div><br></div><div><div>extern inline unsigned char get_fs_byte(const char * addr)</div><div>{</div><div> unsigned register char _v;</div><div><br></div><div> __asm__ ("movb <font color="#ff0000">%%fs</font>:%1,%0":"=r" (_v):"m" (*addr));</div>
<div> return _v;</div><div>}</div><div><br></div><div>What's the meaning of "%%fs" ?</div><div><br></div><div>Is " __asm__ ("movb %1,%0":"=r" (_v):"m" (*addr));" not ok?</div>
<div><br></div></div><div><br></div><div>Thank you.</div>