pqc-accelerate/HLS_Codes/pm_test.cpp

// pm_test.cpp  (works with Set A and Set B)

#include "test_case.h"

int main()
{
    // Top-level AXI4-Stream ports for the DUT
    hls::stream<coeff_axis_big_t> in_data;
    hls::stream<coeff_axis_t>     out_data;

    coeff_axis_big_t local_stream1;
    coeff_axis_t      local_stream2;

    int i;

    coeff_t actual_outputs[Nt];

    // -------------------------------------------------------------------------
    // Write stimulus into input AXI4-Stream
    // -------------------------------------------------------------------------
    for (i = 0; i < Nt; i++)
    {
        coeff_t        val1 = input1_vals[i];
        double_coeff_t val2 = (double_coeff_t)(input2_vals[i] * 65536);

        // Pack into 32-bit AXI data word
        local_stream1.data = (ap_uint<32>)(val1 + val2);

        // Mark all bytes valid; side channels are disabled here
        local_stream1.keep = -1;
        local_stream1.strb = -1;

        // TLAST on final sample
        local_stream1.last = (i == Nt - 1) ? 1 : 0;

        in_data.write(local_stream1);
    }

    // -------------------------------------------------------------------------
    // Call DUT
    // -------------------------------------------------------------------------
    poly_mult(in_data, out_data);

    // -------------------------------------------------------------------------
    // Read result from output AXI4-Stream
    // -------------------------------------------------------------------------
    for (i = 0; i < Nt; i++)
    {
        local_stream2 = out_data.read();
        actual_outputs[i] = (coeff_t)local_stream2.data;
        // Optionally check local_stream2.last here
    }

    // -------------------------------------------------------------------------
    // Compare against golden output
    // -------------------------------------------------------------------------
    int ret_val = 0;
    for (i = 0; i < Nt; i++)
    {
        if (output_vals[i] != actual_outputs[i])
        {
            ret_val++;
            std::cout << actual_outputs[i];
            break;
        }
    }

    return ret_val;
}