Diff: cmsis_dsp/BasicMathFunctions/arm_mult_f32.c

Revision:

5:a912b042151f

Parent:

4:9cee975aadce

diff -r 9cee975aadce -r a912b042151f cmsis_dsp/BasicMathFunctions/arm_mult_f32.c
--- a/cmsis_dsp/BasicMathFunctions/arm_mult_f32.c	Mon Jun 23 09:30:09 2014 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,174 +0,0 @@
-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010-2013 ARM Limited. All rights reserved.    
-*    
-* $Date:        17. January 2013
-* $Revision: 	V1.4.1
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:	    arm_mult_f32.c    
-*    
-* Description:	Floating-point vector multiplication.    
-*    
-* 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 groupMath        
- */
-
-/**        
- * @defgroup BasicMult Vector Multiplication        
- *        
- * Element-by-element multiplication of two vectors.        
- *        
- * <pre>        
- *     pDst[n] = pSrcA[n] * pSrcB[n],   0 <= n < blockSize.        
- * </pre>        
- *        
- * There are separate functions for floating-point, Q7, Q15, and Q31 data types.        
- */
-
-/**        
- * @addtogroup BasicMult        
- * @{        
- */
-
-/**        
- * @brief Floating-point vector multiplication.        
- * @param[in]       *pSrcA points to the first input vector        
- * @param[in]       *pSrcB points to the second input vector        
- * @param[out]      *pDst points to the output vector        
- * @param[in]       blockSize number of samples in each vector        
- * @return none.        
- */
-
-void arm_mult_f32(
-  float32_t * pSrcA,
-  float32_t * pSrcB,
-  float32_t * pDst,
-  uint32_t blockSize)
-{
-  uint32_t blkCnt;                               /* loop counters */
-#ifndef ARM_MATH_CM0_FAMILY
-
-  /* Run the below code for Cortex-M4 and Cortex-M3 */
-  float32_t inA1, inA2, inA3, inA4;              /* temporary input variables */
-  float32_t inB1, inB2, inB3, inB4;              /* temporary input variables */
-  float32_t out1, out2, out3, out4;              /* temporary output 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 * B */
-    /* Multiply the inputs and store the results in output buffer */
-    /* read sample from sourceA */
-    inA1 = *pSrcA;
-    /* read sample from sourceB */
-    inB1 = *pSrcB;
-    /* read sample from sourceA */
-    inA2 = *(pSrcA + 1);
-    /* read sample from sourceB */
-    inB2 = *(pSrcB + 1);
-
-    /* out = sourceA * sourceB */
-    out1 = inA1 * inB1;
-
-    /* read sample from sourceA */
-    inA3 = *(pSrcA + 2);
-    /* read sample from sourceB */
-    inB3 = *(pSrcB + 2);
-
-    /* out = sourceA * sourceB */
-    out2 = inA2 * inB2;
-
-    /* read sample from sourceA */
-    inA4 = *(pSrcA + 3);
-
-    /* store result to destination buffer */
-    *pDst = out1;
-
-    /* read sample from sourceB */
-    inB4 = *(pSrcB + 3);
-
-    /* out = sourceA * sourceB */
-    out3 = inA3 * inB3;
-
-    /* store result to destination buffer */
-    *(pDst + 1) = out2;
-
-    /* out = sourceA * sourceB */
-    out4 = inA4 * inB4;
-    /* store result to destination buffer */
-    *(pDst + 2) = out3;
-    /* store result to destination buffer */
-    *(pDst + 3) = out4;
-
-
-    /* update pointers to process next samples */
-    pSrcA += 4u;
-    pSrcB += 4u;
-    pDst += 4u;
-
-    /* Decrement the blockSize 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 /* #ifndef ARM_MATH_CM0_FAMILY */
-
-  while(blkCnt > 0u)
-  {
-    /* C = A * B */
-    /* Multiply the inputs and store the results in output buffer */
-    *pDst++ = (*pSrcA++) * (*pSrcB++);
-
-    /* Decrement the blockSize loop counter */
-    blkCnt--;
-  }
-}
-
-/**        
- * @} end of BasicMult group        
- */