summaryrefslogtreecommitdiff
path: root/fw/hid-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c
diff options
context:
space:
mode:
Diffstat (limited to 'fw/hid-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c')
-rw-r--r--fw/hid-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c117
1 files changed, 0 insertions, 117 deletions
diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c b/fw/hid-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c
deleted file mode 100644
index ab5985a..0000000
--- a/fw/hid-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/* ----------------------------------------------------------------------
- * Project: CMSIS DSP Library
- * Title: arm_negate_q31.c
- * Description: Negates Q31 vectors
- *
- * $Date: 27. January 2017
- * $Revision: V.1.5.1
- *
- * Target Processor: Cortex-M cores
- * -------------------------------------------------------------------- */
-/*
- * Copyright (C) 2010-2017 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 groupMath
- */
-
-/**
- * @addtogroup negate
- * @{
- */
-
-/**
- * @brief Negates the elements of a Q31 vector.
- * @param[in] *pSrc points to the input vector
- * @param[out] *pDst points to the output vector
- * @param[in] blockSize number of samples in the vector
- * @return none.
- *
- * <b>Scaling and Overflow Behavior:</b>
- * \par
- * The function uses saturating arithmetic.
- * The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF.
- */
-
-void arm_negate_q31(
- q31_t * pSrc,
- q31_t * pDst,
- uint32_t blockSize)
-{
- q31_t in; /* Temporary variable */
- uint32_t blkCnt; /* loop counter */
-
-#if defined (ARM_MATH_DSP)
-
-/* Run the below code for Cortex-M4 and Cortex-M3 */
- q31_t in1, in2, in3, in4;
-
- /*loop Unrolling */
- blkCnt = blockSize >> 2U;
-
- /* First part of the processing with loop unrolling. Compute 4 outputs at a time.
- ** a second loop below computes the remaining 1 to 3 samples. */
- while (blkCnt > 0U)
- {
- /* C = -A */
- /* Negate and then store the results in the destination buffer. */
- in1 = *pSrc++;
- in2 = *pSrc++;
- in3 = *pSrc++;
- in4 = *pSrc++;
-
- *pDst++ = __QSUB(0, in1);
- *pDst++ = __QSUB(0, in2);
- *pDst++ = __QSUB(0, in3);
- *pDst++ = __QSUB(0, in4);
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
- /* If the blockSize is not a multiple of 4, compute any remaining output samples here.
- ** No loop unrolling is used. */
- blkCnt = blockSize % 0x4U;
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- /* Initialize blkCnt with number of samples */
- blkCnt = blockSize;
-
-#endif /* #if defined (ARM_MATH_DSP) */
-
-
- while (blkCnt > 0U)
- {
- /* C = -A */
- /* Negate and then store the result in the destination buffer. */
- in = *pSrc++;
- *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-}
-
-/**
- * @} end of negate group
- */