From f7de54fc6fa6b40dfa2dfbe4c2a8ee933affa126 Mon Sep 17 00:00:00 2001
From: JanHenrik <janhenrik@janhenrik.org>
Date: Wed, 1 Apr 2020 00:40:03 +0200
Subject: added files

---
 .../DSP/Source/BasicMathFunctions/arm_abs_f32.c    | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 midi-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c

(limited to 'midi-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c')

diff --git a/midi-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c b/midi-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c
new file mode 100644
index 0000000..69b2bfc
--- /dev/null
+++ b/midi-dials/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c
@@ -0,0 +1,153 @@
+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_abs_f32.c
+ * Description:  Floating-point vector absolute value
+ *
+ * $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"
+#include <math.h>
+
+/**
+ * @ingroup groupMath
+ */
+
+/**
+ * @defgroup BasicAbs Vector Absolute Value
+ *
+ * Computes the absolute value of a vector on an element-by-element basis.
+ *
+ * <pre>
+ *     pDst[n] = abs(pSrc[n]),   0 <= n < blockSize.
+ * </pre>
+ *
+ * The functions support in-place computation allowing the source and
+ * destination pointers to reference the same memory buffer.
+ * There are separate functions for floating-point, Q7, Q15, and Q31 data types.
+ */
+
+/**
+ * @addtogroup BasicAbs
+ * @{
+ */
+
+/**
+ * @brief Floating-point vector absolute value.
+ * @param[in]       *pSrc points to the input buffer
+ * @param[out]      *pDst points to the output buffer
+ * @param[in]       blockSize number of samples in each vector
+ * @return none.
+ */
+
+void arm_abs_f32(
+  float32_t * pSrc,
+  float32_t * pDst,
+  uint32_t blockSize)
+{
+  uint32_t blkCnt;                               /* loop counter */
+
+#if defined (ARM_MATH_DSP)
+
+  /* Run the below code for Cortex-M4 and Cortex-M3 */
+  float32_t in1, in2, in3, in4;                  /* temporary variables */
+
+  /*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| */
+    /* Calculate absolute and then store the results in the destination buffer. */
+    /* read sample from source */
+    in1 = *pSrc;
+    in2 = *(pSrc + 1);
+    in3 = *(pSrc + 2);
+
+    /* find absolute value */
+    in1 = fabsf(in1);
+
+    /* read sample from source */
+    in4 = *(pSrc + 3);
+
+    /* find absolute value */
+    in2 = fabsf(in2);
+
+    /* read sample from source */
+    *pDst = in1;
+
+    /* find absolute value */
+    in3 = fabsf(in3);
+
+    /* find absolute value */
+    in4 = fabsf(in4);
+
+    /* store result to destination */
+    *(pDst + 1) = in2;
+
+    /* store result to destination */
+    *(pDst + 2) = in3;
+
+    /* store result to destination */
+    *(pDst + 3) = in4;
+
+
+    /* Update source pointer to process next sampels */
+    pSrc += 4U;
+
+    /* Update destination pointer to process next sampels */
+    pDst += 4U;
+
+    /* 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| */
+    /* Calculate absolute and then store the results in the destination buffer. */
+    *pDst++ = fabsf(*pSrc++);
+
+    /* Decrement the loop counter */
+    blkCnt--;
+  }
+}
+
+/**
+ * @} end of BasicAbs group
+ */
-- 
cgit