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modif max_pow2 pour avoir II=2 (avant II=3)
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1 changed files with 22 additions and 10 deletions
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@ -39,20 +39,17 @@ uint16_t do_max_loop_127(const uint16_t in_array[64]);
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#endif
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template <typename T>
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constexpr T max_scalar(T a, T b) {
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return (a < b ? b : a);
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}
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template <unsigned N>
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struct max_pow2 {
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template <typename T>
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static T process(const T values[N]) {
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static_assert(N > 2, "N cannot be less than 3!");
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T half_values[N / 2];
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#pragma HLS array_partition variable=half_values complete
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for (uint8_t i = 0; i < N / 2; i++) {
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#pragma HLS unroll
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const uint8_t j = i << 1;
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const uint8_t jp1 = j + 1;
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half_values[i] = (values[j] < values[jp1] ? values[jp1] : values[j]);
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}
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return max_pow2<N / 2>::process(half_values);
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return max_scalar(max_pow2<N / 2>::process(values), max_pow2<N / 2>::process(values + N / 2));
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}
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};
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@ -60,10 +57,25 @@ template <>
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struct max_pow2<2> {
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template <typename T>
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static T process(const T values[2]) {
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return (values[0] < values[1] ? values[1] : values[0]);
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return max_scalar(values[0], values[1]);
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}
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};
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template <unsigned N>
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struct max_naif {
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template <typename T>
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static T process(const T values[N]) {
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T res = values[0];
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for(uint8_t i = 1; i < N; i++){
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#pragma HLS pipeline
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res = max_scalar(res, values[i]);
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}
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return res;
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}
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};
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/* TRUE MAX TEMPLATE BELOW */
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/**
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