blob: 1067d02f96db61c1b59e3e8960d5474519ec5679 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/* ----------------------------------------------------------------------
* Project: CMSIS DSP Library
* Title: arm_vinverse_f16.c
* Description: Fast vectorized inverse
*
* $Date: 23 April 2021
* $Revision: V1.9.0
*
* Target Processor: Cortex-M and Cortex-A cores
* -------------------------------------------------------------------- */
/*
* Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* 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
*
* 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 "dsp/fast_math_functions_f16.h"
#if defined(ARM_FLOAT16_SUPPORTED)
#include "arm_common_tables.h"
#include "arm_vec_math_f16.h"
void arm_vinverse_f16(
const float16_t * pSrc,
float16_t * pDst,
uint32_t blockSize)
{
uint32_t blkCnt;
#if defined(ARM_MATH_MVE_FLOAT16) && !defined(ARM_MATH_AUTOVECTORIZE)
f16x8_t src;
f16x8_t dst;
blkCnt = blockSize >> 3;
while (blkCnt > 0U)
{
src = vld1q(pSrc);
dst = vrecip_hiprec_f16(src);
vst1q(pDst, dst);
pSrc += 8;
pDst += 8;
/* Decrement loop counter */
blkCnt--;
}
blkCnt = blockSize & 7;
#else
blkCnt = blockSize;
#endif
while (blkCnt > 0U)
{
*pDst++ = 1.0f16 / (_Float16)*pSrc++;
/* Decrement loop counter */
blkCnt--;
}
}
#endif /* #if defined(ARM_FLOAT16_SUPPORTED) */
|
