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Rev 3949 Rev 4018
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/** Return base address of current stack.
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/** Return base address of current stack.
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 *
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 *
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 * Return the base address of the current stack.
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 * Return the base address of the current stack.
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 * The stack is assumed to be STACK_SIZE bytes long.
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 * The stack is assumed to be STACK_SIZE bytes long.
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 * The stack must start on page boundary.
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 * The stack must start on page boundary.
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 *
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 */
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 */
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static inline uintptr_t get_stack_base(void)
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static inline uintptr_t get_stack_base(void)
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{
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{
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    uintptr_t v;
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    uintptr_t v;
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    asm volatile (
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    asm volatile (
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        "and %0, sp, %1\n"
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        "and %[v], sp, %[size]\n"
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        : "=r" (v)
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        : [v] "=r" (v)
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        : "r" (~(STACK_SIZE - 1))
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        : [size] "r" (~(STACK_SIZE - 1))
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    );
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    );
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    return v;
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    return v;
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}
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}
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extern void cpu_halt(void);
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extern void cpu_halt(void);