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Diffstat (limited to 'Drivers/CMSIS/DSP/Source/SupportFunctions/arm_copy_q7.c')
-rw-r--r--Drivers/CMSIS/DSP/Source/SupportFunctions/arm_copy_q7.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_copy_q7.c b/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_copy_q7.c
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+++ b/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_copy_q7.c
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+/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_copy_q7.c
+ * Description: Copies the elements of a Q7 vector
+ *
+ * $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/support_functions.h"
+
+/**
+ @ingroup groupSupport
+ */
+
+/**
+ @addtogroup copy
+ @{
+ */
+
+/**
+ @brief Copies the elements of a Q7 vector.
+ @param[in] pSrc points to input vector
+ @param[out] pDst points to output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
+void arm_copy_q7(
+ const q7_t * pSrc,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+
+ uint32_t blkCnt;
+
+ blkCnt = blockSize >> 4;
+ while (blkCnt > 0U)
+ {
+
+ vstrbq_s8(pDst,vldrbq_s8(pSrc));
+ /*
+ * Decrement the blockSize loop counter
+ * Advance vector source and destination pointers
+ */
+ pSrc += 16;
+ pDst += 16;
+ blkCnt --;
+ }
+
+ blkCnt = blockSize & 0xF;
+ while (blkCnt > 0U)
+ {
+ /* C = A */
+
+ /* Copy and store result in destination buffer */
+ *pDst++ = *pSrc++;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+}
+
+#else
+void arm_copy_q7(
+ const q7_t * pSrc,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A */
+
+ /* read 4 samples at a time */
+ write_q7x4_ia (&pDst, read_q7x4_ia (&pSrc));
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+ /* Loop unrolling: Compute remaining outputs */
+ blkCnt = blockSize % 0x4U;
+
+#else
+
+ /* Initialize blkCnt with number of samples */
+ blkCnt = blockSize;
+
+#endif /* #if defined (ARM_MATH_LOOPUNROLL) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A */
+
+ /* Copy and store result in destination buffer */
+ *pDst++ = *pSrc++;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+}
+#endif /* defined(ARM_MATH_MVEI) */
+
+/**
+ @} end of BasicCopy group
+ */