diff options
Diffstat (limited to 'apps/mathlib/CMSIS/DSP_Lib/Source/SupportFunctions/arm_q15_to_q31.c')
-rw-r--r-- | apps/mathlib/CMSIS/DSP_Lib/Source/SupportFunctions/arm_q15_to_q31.c | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/apps/mathlib/CMSIS/DSP_Lib/Source/SupportFunctions/arm_q15_to_q31.c b/apps/mathlib/CMSIS/DSP_Lib/Source/SupportFunctions/arm_q15_to_q31.c deleted file mode 100644 index a0f66c29e..000000000 --- a/apps/mathlib/CMSIS/DSP_Lib/Source/SupportFunctions/arm_q15_to_q31.c +++ /dev/null @@ -1,148 +0,0 @@ -/* ----------------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_q15_to_q31.c
-*
-* Description: Converts the elements of the Q15 vector to Q31 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.
-* ---------------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupSupport
- */
-
-/**
- * @addtogroup q15_to_x
- * @{
- */
-
-/**
- * @brief Converts the elements of the Q15 vector to Q31 vector.
- * @param[in] *pSrc points to the Q15 input vector
- * @param[out] *pDst points to the Q31 output vector
- * @param[in] blockSize length of the input vector
- * @return none.
- *
- * \par Description:
- *
- * The equation used for the conversion process is:
- *
- * <pre>
- * pDst[n] = (q31_t) pSrc[n] << 16; 0 <= n < blockSize.
- * </pre>
- *
- */
-
-
-void arm_q15_to_q31(
- q15_t * pSrc,
- q31_t * pDst,
- uint32_t blockSize)
-{
- q15_t *pIn = pSrc; /* Src pointer */
- uint32_t blkCnt; /* loop counter */
-
-#ifndef ARM_MATH_CM0
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
- q31_t in1, in2;
- q31_t out1, out2, out3, out4;
-
- /*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 = (q31_t)A << 16 */
- /* convert from q15 to q31 and then store the results in the destination buffer */
- in1 = *__SIMD32(pIn)++;
- in2 = *__SIMD32(pIn)++;
-
-#ifndef ARM_MATH_BIG_ENDIAN
-
- /* extract lower 16 bits to 32 bit result */
- out1 = in1 << 16u;
- /* extract upper 16 bits to 32 bit result */
- out2 = in1 & 0xFFFF0000;
- /* extract lower 16 bits to 32 bit result */
- out3 = in2 << 16u;
- /* extract upper 16 bits to 32 bit result */
- out4 = in2 & 0xFFFF0000;
-
-#else
-
- /* extract upper 16 bits to 32 bit result */
- out1 = in1 & 0xFFFF0000;
- /* extract lower 16 bits to 32 bit result */
- out2 = in1 << 16u;
- /* extract upper 16 bits to 32 bit result */
- out3 = in2 & 0xFFFF0000;
- /* extract lower 16 bits to 32 bit result */
- out4 = in2 << 16u;
-
-#endif // #ifndef ARM_MATH_BIG_ENDIAN
-
- *pDst++ = out1;
- *pDst++ = out2;
- *pDst++ = out3;
- *pDst++ = out4;
-
- /* 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 = (q31_t)A << 16 */
- /* convert from q15 to q31 and then store the results in the destination buffer */
- *pDst++ = (q31_t) * pIn++ << 16;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
-}
-
-/**
- * @} end of q15_to_x group
- */
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