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author | Ali Labbene <ali.labbene@st.com> | 2019-12-11 08:59:21 +0100 |
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committer | Ali Labbene <ali.labbene@st.com> | 2019-12-16 16:35:24 +0100 |
commit | 9f95ff5b6ba01db09552b84a0ab79607060a2666 (patch) | |
tree | 8a6e0dda832555c692307869aed49d07ee7facfe /DSP_Lib/Source/FilteringFunctions/arm_conv_partial_opt_q7.c | |
parent | 76177aa280494bb36d7a0bcbda1078d4db717020 (diff) | |
download | st-cmsis-core-lowfat-9f95ff5b6ba01db09552b84a0ab79607060a2666.tar.gz st-cmsis-core-lowfat-9f95ff5b6ba01db09552b84a0ab79607060a2666.tar.bz2 st-cmsis-core-lowfat-9f95ff5b6ba01db09552b84a0ab79607060a2666.zip |
Official ARM version: v5.4.0
Add CMSIS V5.4.0, please refer to index.html available under \docs folder.
Note: content of \CMSIS\Core\Include has been copied under \Include to keep the same structure
used in existing projects, and thus avoid projects mass update
Note: the following components have been removed from ARM original delivery (as not used in ST packages)
- CMSIS_EW2018.pdf
- .gitattributes
- .gitignore
- \Device
- \CMSIS
- \CoreValidation
- \DAP
- \Documentation
- \DoxyGen
- \Driver
- \Pack
- \RTOS\CMSIS_RTOS_Tutorial.pdf
- \RTOS\RTX
- \RTOS\Template
- \RTOS2\RTX
- \Utilities
- All ARM/GCC projects files are deleted from \DSP, \RTOS and \RTOS2
Change-Id: Ia026c3f0f0d016627a4fb5a9032852c33d24b4d3
Diffstat (limited to 'DSP_Lib/Source/FilteringFunctions/arm_conv_partial_opt_q7.c')
-rw-r--r-- | DSP_Lib/Source/FilteringFunctions/arm_conv_partial_opt_q7.c | 803 |
1 files changed, 0 insertions, 803 deletions
diff --git a/DSP_Lib/Source/FilteringFunctions/arm_conv_partial_opt_q7.c b/DSP_Lib/Source/FilteringFunctions/arm_conv_partial_opt_q7.c deleted file mode 100644 index e8fcce5..0000000 --- a/DSP_Lib/Source/FilteringFunctions/arm_conv_partial_opt_q7.c +++ /dev/null @@ -1,803 +0,0 @@ -/* ---------------------------------------------------------------------- -* Copyright (C) 2010-2014 ARM Limited. All rights reserved. -* -* $Date: 19. March 2015 -* $Revision: V.1.4.5 -* -* Project: CMSIS DSP Library -* Title: arm_conv_partial_opt_q7.c -* -* Description: Partial convolution of Q7 sequences. -* -* Target Processor: Cortex-M4/Cortex-M3 -* -* 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 groupFilters - */ - -/** - * @addtogroup PartialConv - * @{ - */ - -/** - * @brief Partial convolution of Q7 sequences. - * @param[in] *pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] *pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] *pDst points to the location where the output result is written. - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @param[in] *pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] *pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen). - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - * - * \par Restrictions - * If the silicon does not support unaligned memory access enable the macro UNALIGNED_SUPPORT_DISABLE - * In this case input, output, scratch1 and scratch2 buffers should be aligned by 32-bit - * - * - * - */ - - -#ifndef UNALIGNED_SUPPORT_DISABLE - -arm_status arm_conv_partial_opt_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst, - uint32_t firstIndex, - uint32_t numPoints, - q15_t * pScratch1, - q15_t * pScratch2) -{ - - q15_t *pScr2, *pScr1; /* Intermediate pointers for scratch pointers */ - q15_t x4; /* Temporary input variable */ - q7_t *pIn1, *pIn2; /* inputA and inputB pointer */ - uint32_t j, k, blkCnt, tapCnt; /* loop counter */ - q7_t *px; /* Temporary input1 pointer */ - q15_t *py; /* Temporary input2 pointer */ - q31_t acc0, acc1, acc2, acc3; /* Accumulator */ - q31_t x1, x2, x3, y1; /* Temporary input variables */ - arm_status status; - q7_t *pOut = pDst; /* output pointer */ - q7_t out0, out1, out2, out3; /* temporary variables */ - - /* Check for range of output samples to be calculated */ - if((firstIndex + numPoints) > ((srcALen + (srcBLen - 1u)))) - { - /* Set status as ARM_MATH_ARGUMENT_ERROR */ - status = ARM_MATH_ARGUMENT_ERROR; - } - else - { - - /* The algorithm implementation is based on the lengths of the inputs. */ - /* srcB is always made to slide across srcA. */ - /* So srcBLen is always considered as shorter or equal to srcALen */ - if(srcALen >= srcBLen) - { - /* Initialization of inputA pointer */ - pIn1 = pSrcA; - - /* Initialization of inputB pointer */ - pIn2 = pSrcB; - } - else - { - /* Initialization of inputA pointer */ - pIn1 = pSrcB; - - /* Initialization of inputB pointer */ - pIn2 = pSrcA; - - /* srcBLen is always considered as shorter or equal to srcALen */ - j = srcBLen; - srcBLen = srcALen; - srcALen = j; - } - - /* pointer to take end of scratch2 buffer */ - pScr2 = pScratch2; - - /* points to smaller length sequence */ - px = pIn2 + srcBLen - 1; - - /* Apply loop unrolling and do 4 Copies simultaneously. */ - k = srcBLen >> 2u; - - /* First part of the processing with loop unrolling copies 4 data points at a time. - ** a second loop below copies for the remaining 1 to 3 samples. */ - while(k > 0u) - { - /* copy second buffer in reversal manner */ - x4 = (q15_t) * px--; - *pScr2++ = x4; - x4 = (q15_t) * px--; - *pScr2++ = x4; - x4 = (q15_t) * px--; - *pScr2++ = x4; - x4 = (q15_t) * px--; - *pScr2++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* If the count is not a multiple of 4, copy remaining samples here. - ** No loop unrolling is used. */ - k = srcBLen % 0x4u; - - while(k > 0u) - { - /* copy second buffer in reversal manner for remaining samples */ - x4 = (q15_t) * px--; - *pScr2++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* Initialze temporary scratch pointer */ - pScr1 = pScratch1; - - /* Fill (srcBLen - 1u) zeros in scratch buffer */ - arm_fill_q15(0, pScr1, (srcBLen - 1u)); - - /* Update temporary scratch pointer */ - pScr1 += (srcBLen - 1u); - - /* Copy (srcALen) samples in scratch buffer */ - /* Apply loop unrolling and do 4 Copies simultaneously. */ - k = srcALen >> 2u; - - /* First part of the processing with loop unrolling copies 4 data points at a time. - ** a second loop below copies for the remaining 1 to 3 samples. */ - while(k > 0u) - { - /* copy second buffer in reversal manner */ - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* If the count is not a multiple of 4, copy remaining samples here. - ** No loop unrolling is used. */ - k = srcALen % 0x4u; - - while(k > 0u) - { - /* copy second buffer in reversal manner for remaining samples */ - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* Fill (srcBLen - 1u) zeros at end of scratch buffer */ - arm_fill_q15(0, pScr1, (srcBLen - 1u)); - - /* Update pointer */ - pScr1 += (srcBLen - 1u); - - - /* Temporary pointer for scratch2 */ - py = pScratch2; - - /* Initialization of pIn2 pointer */ - pIn2 = (q7_t *) py; - - pScr2 = py; - - pOut = pDst + firstIndex; - - pScratch1 += firstIndex; - - /* Actual convolution process starts here */ - blkCnt = (numPoints) >> 2; - - - while(blkCnt > 0) - { - /* Initialze temporary scratch pointer as scratch1 */ - pScr1 = pScratch1; - - /* Clear Accumlators */ - acc0 = 0; - acc1 = 0; - acc2 = 0; - acc3 = 0; - - /* Read two samples from scratch1 buffer */ - x1 = *__SIMD32(pScr1)++; - - /* Read next two samples from scratch1 buffer */ - x2 = *__SIMD32(pScr1)++; - - tapCnt = (srcBLen) >> 2u; - - while(tapCnt > 0u) - { - - /* Read four samples from smaller buffer */ - y1 = _SIMD32_OFFSET(pScr2); - - /* multiply and accumlate */ - acc0 = __SMLAD(x1, y1, acc0); - acc2 = __SMLAD(x2, y1, acc2); - - /* pack input data */ -#ifndef ARM_MATH_BIG_ENDIAN - x3 = __PKHBT(x2, x1, 0); -#else - x3 = __PKHBT(x1, x2, 0); -#endif - - /* multiply and accumlate */ - acc1 = __SMLADX(x3, y1, acc1); - - /* Read next two samples from scratch1 buffer */ - x1 = *__SIMD32(pScr1)++; - - /* pack input data */ -#ifndef ARM_MATH_BIG_ENDIAN - x3 = __PKHBT(x1, x2, 0); -#else - x3 = __PKHBT(x2, x1, 0); -#endif - - acc3 = __SMLADX(x3, y1, acc3); - - /* Read four samples from smaller buffer */ - y1 = _SIMD32_OFFSET(pScr2 + 2u); - - acc0 = __SMLAD(x2, y1, acc0); - - acc2 = __SMLAD(x1, y1, acc2); - - acc1 = __SMLADX(x3, y1, acc1); - - x2 = *__SIMD32(pScr1)++; - -#ifndef ARM_MATH_BIG_ENDIAN - x3 = __PKHBT(x2, x1, 0); -#else - x3 = __PKHBT(x1, x2, 0); -#endif - - acc3 = __SMLADX(x3, y1, acc3); - - pScr2 += 4u; - - - /* Decrement the loop counter */ - tapCnt--; - } - - - - /* Update scratch pointer for remaining samples of smaller length sequence */ - pScr1 -= 4u; - - - /* apply same above for remaining samples of smaller length sequence */ - tapCnt = (srcBLen) & 3u; - - while(tapCnt > 0u) - { - - /* accumlate the results */ - acc0 += (*pScr1++ * *pScr2); - acc1 += (*pScr1++ * *pScr2); - acc2 += (*pScr1++ * *pScr2); - acc3 += (*pScr1++ * *pScr2++); - - pScr1 -= 3u; - - /* Decrement the loop counter */ - tapCnt--; - } - - blkCnt--; - - /* Store the result in the accumulator in the destination buffer. */ - out0 = (q7_t) (__SSAT(acc0 >> 7u, 8)); - out1 = (q7_t) (__SSAT(acc1 >> 7u, 8)); - out2 = (q7_t) (__SSAT(acc2 >> 7u, 8)); - out3 = (q7_t) (__SSAT(acc3 >> 7u, 8)); - - *__SIMD32(pOut)++ = __PACKq7(out0, out1, out2, out3); - - /* Initialization of inputB pointer */ - pScr2 = py; - - pScratch1 += 4u; - - } - - blkCnt = (numPoints) & 0x3; - - /* Calculate convolution for remaining samples of Bigger length sequence */ - while(blkCnt > 0) - { - /* Initialze temporary scratch pointer as scratch1 */ - pScr1 = pScratch1; - - /* Clear Accumlators */ - acc0 = 0; - - tapCnt = (srcBLen) >> 1u; - - while(tapCnt > 0u) - { - - /* Read next two samples from scratch1 buffer */ - x1 = *__SIMD32(pScr1)++; - - /* Read two samples from smaller buffer */ - y1 = *__SIMD32(pScr2)++; - - acc0 = __SMLAD(x1, y1, acc0); - - /* Decrement the loop counter */ - tapCnt--; - } - - tapCnt = (srcBLen) & 1u; - - /* apply same above for remaining samples of smaller length sequence */ - while(tapCnt > 0u) - { - - /* accumlate the results */ - acc0 += (*pScr1++ * *pScr2++); - - /* Decrement the loop counter */ - tapCnt--; - } - - blkCnt--; - - /* Store the result in the accumulator in the destination buffer. */ - *pOut++ = (q7_t) (__SSAT(acc0 >> 7u, 8)); - - /* Initialization of inputB pointer */ - pScr2 = py; - - pScratch1 += 1u; - - } - - /* set status as ARM_MATH_SUCCESS */ - status = ARM_MATH_SUCCESS; - - - } - - return (status); - -} - -#else - -arm_status arm_conv_partial_opt_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst, - uint32_t firstIndex, - uint32_t numPoints, - q15_t * pScratch1, - q15_t * pScratch2) -{ - - q15_t *pScr2, *pScr1; /* Intermediate pointers for scratch pointers */ - q15_t x4; /* Temporary input variable */ - q7_t *pIn1, *pIn2; /* inputA and inputB pointer */ - uint32_t j, k, blkCnt, tapCnt; /* loop counter */ - q7_t *px; /* Temporary input1 pointer */ - q15_t *py; /* Temporary input2 pointer */ - q31_t acc0, acc1, acc2, acc3; /* Accumulator */ - arm_status status; - q7_t *pOut = pDst; /* output pointer */ - q15_t x10, x11, x20, x21; /* Temporary input variables */ - q15_t y10, y11; /* Temporary input variables */ - - /* Check for range of output samples to be calculated */ - if((firstIndex + numPoints) > ((srcALen + (srcBLen - 1u)))) - { - /* Set status as ARM_MATH_ARGUMENT_ERROR */ - status = ARM_MATH_ARGUMENT_ERROR; - } - else - { - - /* The algorithm implementation is based on the lengths of the inputs. */ - /* srcB is always made to slide across srcA. */ - /* So srcBLen is always considered as shorter or equal to srcALen */ - if(srcALen >= srcBLen) - { - /* Initialization of inputA pointer */ - pIn1 = pSrcA; - - /* Initialization of inputB pointer */ - pIn2 = pSrcB; - } - else - { - /* Initialization of inputA pointer */ - pIn1 = pSrcB; - - /* Initialization of inputB pointer */ - pIn2 = pSrcA; - - /* srcBLen is always considered as shorter or equal to srcALen */ - j = srcBLen; - srcBLen = srcALen; - srcALen = j; - } - - /* pointer to take end of scratch2 buffer */ - pScr2 = pScratch2; - - /* points to smaller length sequence */ - px = pIn2 + srcBLen - 1; - - /* Apply loop unrolling and do 4 Copies simultaneously. */ - k = srcBLen >> 2u; - - /* First part of the processing with loop unrolling copies 4 data points at a time. - ** a second loop below copies for the remaining 1 to 3 samples. */ - while(k > 0u) - { - /* copy second buffer in reversal manner */ - x4 = (q15_t) * px--; - *pScr2++ = x4; - x4 = (q15_t) * px--; - *pScr2++ = x4; - x4 = (q15_t) * px--; - *pScr2++ = x4; - x4 = (q15_t) * px--; - *pScr2++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* If the count is not a multiple of 4, copy remaining samples here. - ** No loop unrolling is used. */ - k = srcBLen % 0x4u; - - while(k > 0u) - { - /* copy second buffer in reversal manner for remaining samples */ - x4 = (q15_t) * px--; - *pScr2++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* Initialze temporary scratch pointer */ - pScr1 = pScratch1; - - /* Fill (srcBLen - 1u) zeros in scratch buffer */ - arm_fill_q15(0, pScr1, (srcBLen - 1u)); - - /* Update temporary scratch pointer */ - pScr1 += (srcBLen - 1u); - - /* Copy (srcALen) samples in scratch buffer */ - /* Apply loop unrolling and do 4 Copies simultaneously. */ - k = srcALen >> 2u; - - /* First part of the processing with loop unrolling copies 4 data points at a time. - ** a second loop below copies for the remaining 1 to 3 samples. */ - while(k > 0u) - { - /* copy second buffer in reversal manner */ - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* If the count is not a multiple of 4, copy remaining samples here. - ** No loop unrolling is used. */ - k = srcALen % 0x4u; - - while(k > 0u) - { - /* copy second buffer in reversal manner for remaining samples */ - x4 = (q15_t) * pIn1++; - *pScr1++ = x4; - - /* Decrement the loop counter */ - k--; - } - - /* Apply loop unrolling and do 4 Copies simultaneously. */ - k = (srcBLen - 1u) >> 2u; - - /* First part of the processing with loop unrolling copies 4 data points at a time. - ** a second loop below copies for the remaining 1 to 3 samples. */ - while(k > 0u) - { - /* copy second buffer in reversal manner */ - *pScr1++ = 0; - *pScr1++ = 0; - *pScr1++ = 0; - *pScr1++ = 0; - - /* Decrement the loop counter */ - k--; - } - - /* If the count is not a multiple of 4, copy remaining samples here. - ** No loop unrolling is used. */ - k = (srcBLen - 1u) % 0x4u; - - while(k > 0u) - { - /* copy second buffer in reversal manner for remaining samples */ - *pScr1++ = 0; - - /* Decrement the loop counter */ - k--; - } - - - /* Temporary pointer for scratch2 */ - py = pScratch2; - - /* Initialization of pIn2 pointer */ - pIn2 = (q7_t *) py; - - pScr2 = py; - - pOut = pDst + firstIndex; - - pScratch1 += firstIndex; - - /* Actual convolution process starts here */ - blkCnt = (numPoints) >> 2; - - - while(blkCnt > 0) - { - /* Initialze temporary scratch pointer as scratch1 */ - pScr1 = pScratch1; - - /* Clear Accumlators */ - acc0 = 0; - acc1 = 0; - acc2 = 0; - acc3 = 0; - - /* Read two samples from scratch1 buffer */ - x10 = *pScr1++; - x11 = *pScr1++; - - /* Read next two samples from scratch1 buffer */ - x20 = *pScr1++; - x21 = *pScr1++; - - tapCnt = (srcBLen) >> 2u; - - while(tapCnt > 0u) - { - - /* Read four samples from smaller buffer */ - y10 = *pScr2; - y11 = *(pScr2 + 1u); - - /* multiply and accumlate */ - acc0 += (q31_t) x10 *y10; - acc0 += (q31_t) x11 *y11; - acc2 += (q31_t) x20 *y10; - acc2 += (q31_t) x21 *y11; - - - acc1 += (q31_t) x11 *y10; - acc1 += (q31_t) x20 *y11; - - /* Read next two samples from scratch1 buffer */ - x10 = *pScr1; - x11 = *(pScr1 + 1u); - - /* multiply and accumlate */ - acc3 += (q31_t) x21 *y10; - acc3 += (q31_t) x10 *y11; - - /* Read next two samples from scratch2 buffer */ - y10 = *(pScr2 + 2u); - y11 = *(pScr2 + 3u); - - /* multiply and accumlate */ - acc0 += (q31_t) x20 *y10; - acc0 += (q31_t) x21 *y11; - acc2 += (q31_t) x10 *y10; - acc2 += (q31_t) x11 *y11; - acc1 += (q31_t) x21 *y10; - acc1 += (q31_t) x10 *y11; - - /* Read next two samples from scratch1 buffer */ - x20 = *(pScr1 + 2); - x21 = *(pScr1 + 3); - - /* multiply and accumlate */ - acc3 += (q31_t) x11 *y10; - acc3 += (q31_t) x20 *y11; - - /* update scratch pointers */ - - pScr1 += 4u; - pScr2 += 4u; - - /* Decrement the loop counter */ - tapCnt--; - } - - - - /* Update scratch pointer for remaining samples of smaller length sequence */ - pScr1 -= 4u; - - - /* apply same above for remaining samples of smaller length sequence */ - tapCnt = (srcBLen) & 3u; - - while(tapCnt > 0u) - { - - /* accumlate the results */ - acc0 += (*pScr1++ * *pScr2); - acc1 += (*pScr1++ * *pScr2); - acc2 += (*pScr1++ * *pScr2); - acc3 += (*pScr1++ * *pScr2++); - - pScr1 -= 3u; - - /* Decrement the loop counter */ - tapCnt--; - } - - blkCnt--; - - /* Store the result in the accumulator in the destination buffer. */ - *pOut++ = (q7_t) (__SSAT(acc0 >> 7u, 8)); - *pOut++ = (q7_t) (__SSAT(acc1 >> 7u, 8)); - *pOut++ = (q7_t) (__SSAT(acc2 >> 7u, 8)); - *pOut++ = (q7_t) (__SSAT(acc3 >> 7u, 8)); - - /* Initialization of inputB pointer */ - pScr2 = py; - - pScratch1 += 4u; - - } - - blkCnt = (numPoints) & 0x3; - - /* Calculate convolution for remaining samples of Bigger length sequence */ - while(blkCnt > 0) - { - /* Initialze temporary scratch pointer as scratch1 */ - pScr1 = pScratch1; - - /* Clear Accumlators */ - acc0 = 0; - - tapCnt = (srcBLen) >> 1u; - - while(tapCnt > 0u) - { - - /* Read next two samples from scratch1 buffer */ - x10 = *pScr1++; - x11 = *pScr1++; - - /* Read two samples from smaller buffer */ - y10 = *pScr2++; - y11 = *pScr2++; - - /* multiply and accumlate */ - acc0 += (q31_t) x10 *y10; - acc0 += (q31_t) x11 *y11; - - /* Decrement the loop counter */ - tapCnt--; - } - - tapCnt = (srcBLen) & 1u; - - /* apply same above for remaining samples of smaller length sequence */ - while(tapCnt > 0u) - { - - /* accumlate the results */ - acc0 += (*pScr1++ * *pScr2++); - - /* Decrement the loop counter */ - tapCnt--; - } - - blkCnt--; - - /* Store the result in the accumulator in the destination buffer. */ - *pOut++ = (q7_t) (__SSAT(acc0 >> 7u, 8)); - - /* Initialization of inputB pointer */ - pScr2 = py; - - pScratch1 += 1u; - - } - - /* set status as ARM_MATH_SUCCESS */ - status = ARM_MATH_SUCCESS; - - } - - return (status); - -} - -#endif /* #ifndef UNALIGNED_SUPPORT_DISABLE */ - - - -/** - * @} end of PartialConv group - */ |