apps/verilator/scalar_add/src/kernel.cc

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

#include <stdint.h>

#include "verilator_device.h"
#include "verilator_kernel.h"

namespace tvm {
namespace runtime {
namespace contrib {

extern "C" void verilator_add(VerilatorHandle handle, int *data, int *weight, int *out, int p_h_, int p_w_) {
  for (int64_t i = 0; i < p_h_; ++i) {
    for (int64_t j = 0; j < p_w_; ++j) {
      int64_t k = i * p_w_ + j;
      VerilatorWrite(handle, 0, 0, data[k]);
      VerilatorWrite(handle, 1, 0, weight[k]);
      VerilatorRun(handle, 1);
      out[k] = VerilatorRead(handle, 2, 0);
    }
  }
}

}  // namespace contrib
}  // namespace runtime
}  // namespace tvm