diff options
Diffstat (limited to 'Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_or_u8.c')
-rw-r--r-- | Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_or_u8.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_or_u8.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_or_u8.c new file mode 100644 index 0000000..beee07b --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_or_u8.c @@ -0,0 +1,128 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_or_u8.c + * Description: uint8_t bitwise inclusive OR + * + * $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/basic_math_functions.h" + +/** + @ingroup groupMath + */ + +/** + @addtogroup Or + @{ + */ + +/** + @brief Compute the logical bitwise OR of two fixed-point vectors. + @param[in] pSrcA points to input vector A + @param[in] pSrcB points to input vector B + @param[out] pDst points to output vector + @param[in] blockSize number of samples in each vector + @return none + */ + +void arm_or_u8( + const uint8_t * pSrcA, + const uint8_t * pSrcB, + uint8_t * pDst, + uint32_t blockSize) +{ + uint32_t blkCnt; /* Loop counter */ + +#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE) + uint8x16_t vecSrcA, vecSrcB; + + /* Compute 16 outputs at a time */ + blkCnt = blockSize >> 4; + + while (blkCnt > 0U) + { + vecSrcA = vld1q(pSrcA); + vecSrcB = vld1q(pSrcB); + + vst1q(pDst, vorrq_u8(vecSrcA, vecSrcB) ); + + pSrcA += 16; + pSrcB += 16; + pDst += 16; + + /* Decrement the loop counter */ + blkCnt--; + } + + /* Tail */ + blkCnt = blockSize & 0xF; + + if (blkCnt > 0U) + { + mve_pred16_t p0 = vctp8q(blkCnt); + vecSrcA = vld1q(pSrcA); + vecSrcB = vld1q(pSrcB); + vstrbq_p(pDst, vorrq_u8(vecSrcA, vecSrcB), p0); + } +#else +#if defined(ARM_MATH_NEON) && !defined(ARM_MATH_AUTOVECTORIZE) + uint8x16_t vecA, vecB; + + /* Compute 16 outputs at a time */ + blkCnt = blockSize >> 4U; + + while (blkCnt > 0U) + { + vecA = vld1q_u8(pSrcA); + vecB = vld1q_u8(pSrcB); + + vst1q_u8(pDst, vorrq_u8(vecA, vecB) ); + + pSrcA += 16; + pSrcB += 16; + pDst += 16; + + /* Decrement the loop counter */ + blkCnt--; + } + + /* Tail */ + blkCnt = blockSize & 0xF; +#else + /* Initialize blkCnt with number of samples */ + blkCnt = blockSize; +#endif + + while (blkCnt > 0U) + { + *pDst++ = (*pSrcA++)|(*pSrcB++); + + /* Decrement the loop counter */ + blkCnt--; + } +#endif /* if defined(ARM_MATH_MVEI) */ +} +/** + @} end of Or group + */ |