diff options
Diffstat (limited to 'Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/FastMathFunctions/arm_vlog_f64.c')
| -rwxr-xr-x | Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/FastMathFunctions/arm_vlog_f64.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/FastMathFunctions/arm_vlog_f64.c b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/FastMathFunctions/arm_vlog_f64.c new file mode 100755 index 0000000..9f307a0 --- /dev/null +++ b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/FastMathFunctions/arm_vlog_f64.c @@ -0,0 +1,55 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_vlog_f64.c + * Description: Fast vectorized log + * + * $Date: 10 August 2022 + * $Revision: V1.10.1 + * + * 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 "arm_compiler_specific.h" + + +#include "dsp/fast_math_functions.h" +#include "arm_common_tables.h" + +ARM_DSP_ATTRIBUTE void arm_vlog_f64( + const float64_t * pSrc, + float64_t * pDst, + uint32_t blockSize) +{ + uint32_t blkCnt; + + blkCnt = blockSize; + + + while (blkCnt > 0U) + { + /* C = log(A) */ + + /* Calculate log and store result in destination buffer. */ + *pDst++ = log(*pSrc++); + + /* Decrement loop counter */ + blkCnt--; + } +} |
