1 /* ----------------------------------------------------------------------
2 * Project: CMSIS DSP Library
3 * Title: arm_f64_to_float.c
4 * Description: Converts the elements of the floating-point 64 bit vector to floating-point vector
5 *
6 * $Date: 18 August 2022
7 * $Revision: V1.0.0
8 *
9 * Target Processor: Cortex-M and Cortex-A cores
10 * -------------------------------------------------------------------- */
11 /*
12 * Copyright (C) 2010-2022 ARM Limited or its affiliates. All rights reserved.
13 *
14 * SPDX-License-Identifier: Apache-2.0
15 *
16 * Licensed under the Apache License, Version 2.0 (the License); you may
17 * not use this file except in compliance with the License.
18 * You may obtain a copy of the License at
19 *
20 * www.apache.org/licenses/LICENSE-2.0
21 *
22 * Unless required by applicable law or agreed to in writing, software
23 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
24 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
25 * See the License for the specific language governing permissions and
26 * limitations under the License.
27 */
28
29 #include "dsp/support_functions.h"
30
31 /**
32 @ingroup groupSupport
33 */
34
35
36 /**
37 @addtogroup f64_to_x
38 @{
39 */
40
41 /**
42 @brief Converts the elements of the f64 vector to f32 vector.
43 @param[in] pSrc points to the f64 input vector
44 @param[out] pDst points to the f32 output vector
45 @param[in] blockSize number of samples in each vector
46
47 */
48
49
arm_f64_to_float(const float64_t * pSrc,float32_t * pDst,uint32_t blockSize)50 ARM_DSP_ATTRIBUTE void arm_f64_to_float(
51 const float64_t * pSrc,
52 float32_t * pDst,
53 uint32_t blockSize)
54 {
55 const float64_t *pIn = pSrc; /* Src pointer */
56 uint32_t blkCnt; /* loop counter */
57
58 /*
59 * Loop over blockSize number of values
60 */
61 blkCnt = blockSize;
62
63 while (blkCnt > 0U)
64 {
65
66 *pDst++ = (float32_t) * pIn++;
67 /*
68 * Decrement the loop counter
69 */
70 blkCnt--;
71 }
72 }
73 /**
74 @} end of f64_to_x group
75 */
76
