1 /* ----------------------------------------------------------------------
2 * Project: CMSIS DSP Library
3 * Title: arm_float_to_f64.c
4 * Description: Converts the elements of the floating-point vector to floating-point 64 bit 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
33
34 /**
35 @ingroup groupSupport
36 */
37
38 /**
39 @addtogroup float_to_x
40 @{
41 */
42
43 /**
44 @brief Converts the elements of the floating-point vector to f64 vector.
45 @param[in] pSrc points to the f32 input vector
46 @param[out] pDst points to the f64 output vector
47 @param[in] blockSize number of samples in each vector
48 @return none
49
50 */
51
arm_float_to_f64(const float32_t * pSrc,float64_t * pDst,uint32_t blockSize)52 void arm_float_to_f64(
53 const float32_t * pSrc,
54 float64_t * pDst,
55 uint32_t blockSize)
56
57 {
58 const float32_t *pIn = pSrc; /* Src pointer */
59 uint32_t blkCnt; /* loop counter */
60
61 /*
62 * Loop over blockSize number of values
63 */
64 blkCnt = blockSize;
65
66 while (blkCnt > 0U)
67 {
68
69 *pDst++ = (float64_t) * pIn++;
70 /*
71 * Decrement the loop counter
72 */
73 blkCnt--;
74 }
75 }
76
77
78
79 /**
80 @} end of float_to_x group
81 */
82
83
84
85
86