27 lines
383 B
C
27 lines
383 B
C
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#include <stdint.h>
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#include "../include/utils.h"
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uint64_t get_cycle_value()
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{
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uint64_t cycle;
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cycle = read_csr(cycle);
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cycle += (uint64_t)(read_csr(cycleh)) << 32;
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return cycle;
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}
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void busy_wait(uint32_t us)
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{
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uint64_t tmp;
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uint32_t count;
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count = us * CPU_FREQ_MHZ;
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tmp = get_cycle_value();
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while (get_cycle_value() < (tmp + count));
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}
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