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#include <typedefs.h>
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#include <typedefs.h>
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#include <arch/types.h>
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#include <arch/types.h>
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#include <arch/register.h>
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#include <arch/register.h>
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#include <config.h>
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#include <config.h>
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#include <time/clock.h>
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#include <time/clock.h>
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#include <arch/stack.h>
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/** Read Processor State register.
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/** Read Processor State register.
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 *
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 *
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 * @return Value of PSTATE register.
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 * @return Value of PSTATE register.
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 */
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 */
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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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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 unbiased_sp;
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    __asm__ volatile ("andn %%sp, %1, %0\n" : "=r" (v) : "r" (STACK_SIZE-1));
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    __asm__ volatile ("add %%sp, %1, %0\n" : "=r" (unbiased_sp) : "i" (STACK_BIAS));
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    return v;
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    return ALIGN_DOWN(unbiased_sp, STACK_SIZE);
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}
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}
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/** Read Version Register.
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/** Read Version Register.
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 *
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 *
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 * @return Value of VER register.
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 * @return Value of VER register.