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    __asm__ volatile ("andq %%rsp, %0\n" : "=r" (v) : "0" (~((__u64)STACK_SIZE-1)));
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    __asm__ volatile ("andq %%rsp, %0\n" : "=r" (v) : "0" (~((__u64)STACK_SIZE-1)));
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    return v;
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    return v;
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}
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}
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static inline void cpu_sleep(void) { __asm__("hlt"); };
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static inline void cpu_sleep(void) { __asm__ volatile ("hlt"); };
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static inline void cpu_halt(void) { __asm__("hlt"); };
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static inline void cpu_halt(void) { __asm__ volatile ("hlt"); };
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static inline __u8 inb(__u16 port)
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static inline __u8 inb(__u16 port)
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{
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{
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    __u8 out;
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    __u8 out;