diff options
Diffstat (limited to 'Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c')
| -rw-r--r-- | Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c | 234 |
1 files changed, 100 insertions, 134 deletions
diff --git a/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c b/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c index 997a728..6296678 100644 --- a/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c +++ b/Drivers/CMSIS/DSP/Source/SupportFunctions/arm_fill_q15.c @@ -1,134 +1,100 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_fill_q15.c - * Description: Fills a constant value into a Q15 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 Fill - @{ - */ - -/** - @brief Fills a constant value into a Q15 vector. - @param[in] value input value to be filled - @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_fill_q15( - q15_t value, - q15_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; - blkCnt = blockSize >> 3; - while (blkCnt > 0U) - { - - vstrhq_s16(pDst,vdupq_n_s16(value)); - /* - * Decrement the blockSize loop counter - * Advance vector source and destination pointers - */ - pDst += 8; - blkCnt --; - } - - blkCnt = blockSize & 7; - while (blkCnt > 0U) - { - /* C = value */ - - /* Fill value in destination buffer */ - *pDst++ = value; - - /* Decrement loop counter */ - blkCnt--; - } -} - -#else -void arm_fill_q15( - q15_t value, - q15_t * pDst, - uint32_t blockSize) -{ - uint32_t blkCnt; /* Loop counter */ - -#if defined (ARM_MATH_LOOPUNROLL) - q31_t packedValue; /* value packed to 32 bits */ - - /* Packing two 16 bit values to 32 bit value in order to use SIMD */ - packedValue = __PKHBT(value, value, 16U); - - /* Loop unrolling: Compute 4 outputs at a time */ - blkCnt = blockSize >> 2U; - - while (blkCnt > 0U) - { - /* C = value */ - - /* fill 2 times 2 samples at a time */ - write_q15x2_ia (&pDst, packedValue); - write_q15x2_ia (&pDst, packedValue); - - /* 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 = value */ - - /* Fill value in destination buffer */ - *pDst++ = value; - - /* Decrement loop counter */ - blkCnt--; - } -} -#endif /* defined(ARM_MATH_MVEI) */ - -/** - @} end of Fill group - */ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_fill_q15.c
+ * Description: Fills a constant value into a Q15 vector
+ *
+ * $Date: 18. March 2019
+ * $Revision: V1.6.0
+ *
+ * Target Processor: Cortex-M cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 2010-2019 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_math.h"
+
+/**
+ @ingroup groupSupport
+ */
+
+/**
+ @addtogroup Fill
+ @{
+ */
+
+/**
+ @brief Fills a constant value into a Q15 vector.
+ @param[in] value input value to be filled
+ @param[out] pDst points to output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+
+void arm_fill_q15(
+ q15_t value,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+ q31_t packedValue; /* value packed to 32 bits */
+
+ /* Packing two 16 bit values to 32 bit value in order to use SIMD */
+ packedValue = __PKHBT(value, value, 16U);
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = value */
+
+ /* fill 2 times 2 samples at a time */
+ write_q15x2_ia (&pDst, packedValue);
+ write_q15x2_ia (&pDst, packedValue);
+
+ /* 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 = value */
+
+ /* Fill value in destination buffer */
+ *pDst++ = value;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+}
+
+/**
+ @} end of Fill group
+ */
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