summaryrefslogtreecommitdiff
path: root/platform/CMSIS/DSP_Lib/Source/SupportFunctions/arm_fill_f32.c
diff options
context:
space:
mode:
Diffstat (limited to 'platform/CMSIS/DSP_Lib/Source/SupportFunctions/arm_fill_f32.c')
-rw-r--r--platform/CMSIS/DSP_Lib/Source/SupportFunctions/arm_fill_f32.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/platform/CMSIS/DSP_Lib/Source/SupportFunctions/arm_fill_f32.c b/platform/CMSIS/DSP_Lib/Source/SupportFunctions/arm_fill_f32.c
new file mode 100644
index 0000000..0d759a0
--- /dev/null
+++ b/platform/CMSIS/DSP_Lib/Source/SupportFunctions/arm_fill_f32.c
@@ -0,0 +1,134 @@
+/* ----------------------------------------------------------------------
+* Copyright (C) 2010-2014 ARM Limited. All rights reserved.
+*
+* $Date: 31. July 2014
+* $Revision: V1.4.4
+*
+* Project: CMSIS DSP Library
+* Title: arm_fill_f32.c
+*
+* Description: Fills a constant value into a floating-point vector.
+*
+* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+* - Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* - Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* - Neither the name of ARM LIMITED nor the names of its contributors
+* may be used to endorse or promote products derived from this
+* software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+* POSSIBILITY OF SUCH DAMAGE.
+* ---------------------------------------------------------------------------- */
+
+#include "arm_math.h"
+
+/**
+ * @ingroup groupSupport
+ */
+
+/**
+ * @defgroup Fill Vector Fill
+ *
+ * Fills the destination vector with a constant value.
+ *
+ * <pre>
+ * pDst[n] = value; 0 <= n < blockSize.
+ * </pre>
+ *
+ * There are separate functions for floating point, Q31, Q15, and Q7 data types.
+ */
+
+/**
+ * @addtogroup Fill
+ * @{
+ */
+
+/**
+ * @brief Fills a constant value into a floating-point vector.
+ * @param[in] value input value to be filled
+ * @param[out] *pDst points to output vector
+ * @param[in] blockSize length of the output vector
+ * @return none.
+ *
+ */
+
+
+void arm_fill_f32(
+ float32_t value,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* loop counter */
+
+#ifndef ARM_MATH_CM0_FAMILY
+
+ /* Run the below code for Cortex-M4 and Cortex-M3 */
+ float32_t in1 = value;
+ float32_t in2 = value;
+ float32_t in3 = value;
+ float32_t in4 = value;
+
+ /*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 = value */
+ /* Fill the value in the destination buffer */
+ *pDst++ = in1;
+ *pDst++ = in2;
+ *pDst++ = in3;
+ *pDst++ = 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 */
+
+ /* Loop over blockSize number of values */
+ blkCnt = blockSize;
+
+#endif /* #ifndef ARM_MATH_CM0_FAMILY */
+
+
+ while(blkCnt > 0u)
+ {
+ /* C = value */
+ /* Fill the value in the destination buffer */
+ *pDst++ = value;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+}
+
+/**
+ * @} end of Fill group
+ */