text: /* ----------------------------------------------------------------------    
  * Copyright (C) 2010 ARM Limited. All rights reserved.    
  *    
  * $Date:        15. February 2012  
  * $Revision: 	V1.1.0  
  *    
  * Project: 	    CMSIS DSP Library    
  * Title:		arm_copy_q7.c    
  *    
  * Description:	Copies the elements of a Q7 vector.    
  *    
  * Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
  *  
  * Version 1.1.0 2012/02/15 
  *    Updated with more optimizations, bug fixes and minor API changes.  
  *   
  * Version 1.0.10 2011/7/15  
  *    Big Endian support added and Merged M0 and M3/M4 Source code.   
  *    
  * Version 1.0.3 2010/11/29   
  *    Re-organized the CMSIS folders and updated documentation.    
  *     
  * Version 1.0.2 2010/11/11    
  *    Documentation updated.     
  *    
  * Version 1.0.1 2010/10/05     
  *    Production release and review comments incorporated.    
  *    
  * Version 1.0.0 2010/09/20     
  *    Production release and review comments incorporated.    
  *    
  * Version 0.0.7  2010/06/10     
  *    Misra-C changes done    
  * -------------------------------------------------------------------- */
  
  #include "arm_math.h"
  
  /**    
   * @ingroup groupSupport    
   */
  
  /**    
   * @addtogroup copy    
   * @{    
   */
  
  /**    
   * @brief Copies the elements of a Q7 vector.    
   * @param[in]       *pSrc points to input vector    
   * @param[out]      *pDst points to output vector    
   * @param[in]       blockSize length of the input vector   
   * @return none.    
   *    
   */
  
  void arm_copy_q7(
    q7_t * pSrc,
    q7_t * pDst,
    uint32_t blockSize)
  {
    uint32_t blkCnt;                               /* loop counter */
  
  #ifndef ARM_MATH_CM0
  
    /* Run the below code for Cortex-M4 and Cortex-M3 */
  
    /*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 */
      /* Copy and then store the results in the destination buffer */
      /* 4 samples are copied and stored at a time using SIMD */
      *__SIMD32(pDst)++ = *__SIMD32(pSrc)++;
  
      /* 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 */
  
  
    while(blkCnt > 0u)
    {
      /* C = A */
      /* Copy and then store the results in the destination buffer */
      *pDst++ = *pSrc++;
  
      /* Decrement the loop counter */
      blkCnt--;
    }
  }
  
  /**    
   * @} end of BasicCopy group    
   */
  