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extern __u8 inb(int port);
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extern __u8 inb(int port);
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extern __u16 inw(int port);
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extern __u16 inw(int port);
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extern __u32 inl(int port);
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extern __u32 inl(int port);
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extern void outb(int port, __u8 b);
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extern void outw(int port, __u16 w);
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extern void outw(int port, __u16 w);
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extern void outl(int port, __u32 l);
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extern void outl(int port, __u32 l);
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extern void enable_l_apic_in_msr(void);
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extern void enable_l_apic_in_msr(void);
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 *
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 *
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 * @return Value read.
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 * @return Value read.
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 */
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 */
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static inline __u32 read_cr3(void) { __u32 v; __asm__ volatile ("movl %%cr3,%0\n" : "=r" (v)); return v; }
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static inline __u32 read_cr3(void) { __u32 v; __asm__ volatile ("movl %%cr3,%0\n" : "=r" (v)); return v; }
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/** Byte to port
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 *
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 * Output byte to port
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 *
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 * @param port Port to write to
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 * @param val Value to write
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 */
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static inline void outb(__u16 port, __u8 val) { __asm__ volatile ("outb %b0, %w1\n" : : "a" (val), "d" (port) ); }
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/** Set priority level low
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/** Set priority level low
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 *
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 *
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 * Enable interrupts and return previous
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 * Enable interrupts and return previous
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 * value of EFLAGS.
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 * value of EFLAGS.
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 */
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 */
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    __asm__ volatile("rdtsc\n" : "=A" (v));
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    __asm__ volatile("rdtsc\n" : "=A" (v));
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    return v;
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    return v;
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}
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}
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#endif
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#endif