the codes is:
extern inline unsigned char get_fs_byte(const char * addr)
{
unsigned register char _v;
__asm__ ("movb %%fs:%1,%0":"=r" (_v):"m" (*addr));
return _v;
}
What's the meaning of "%%fs" ?
Is " __asm__ ("movb %1,%0":"=r" (_v):"m" (*addr));" not ok?
Thank you.
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