softrvv/include/softrvv_vsext_vzext.h

/*
 * Copyright 2023 Google LLC
 *
 * Licensed 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.
 */

#ifndef SOFTRVV_VSEXT_VZEXT_H
#define SOFTRVV_VSEXT_VZEXT_H

#include <stddef.h>

namespace softrvv {

// Cast a vector from T2 to T1
// vsext is the vector signed extention instruction
template <typename T1, typename T2>
void vsext_v(T1 *dest, const T2 *src1, int32_t avl) {
  for (int32_t idx = 0; idx < avl; idx++) {
    dest[idx] = static_cast<T1>(src1[idx]);
  }
}

// Cast a vector from T2 to T1
// vzext is the vector zero extention instruction
// Function is identical to vsext as compiler
// does the right thing when T1,T2 are unsigned
template <typename T1, typename T2>
void vzext_v(T1 *dest, const T2 *src1, int32_t avl) {
  vsext_v<T1, T2>(dest, src1, avl);
}

}  // namespace softrvv

#endif  // SOFTRVV_VSEXT_VZEXT_H