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Diffstat (limited to 'Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c')
-rw-r--r--Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c287
1 files changed, 119 insertions, 168 deletions
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c
index 7be80db..b50c109 100644
--- a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c
+++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c
@@ -1,168 +1,119 @@
-/* ----------------------------------------------------------------------
- * Project: CMSIS DSP Library
- * Title: arm_mult_q7.c
- * Description: Q7 vector multiplication
- *
- * $Date: 23 April 2021
- * $Revision: V1.9.0
- *
- * Target Processor: Cortex-M and Cortex-A cores
- * -------------------------------------------------------------------- */
-/*
- * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an AS IS BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "dsp/basic_math_functions.h"
-
-/**
- @ingroup groupMath
- */
-
-/**
- @addtogroup BasicMult
- @{
- */
-
-/**
- @brief Q7 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
-
- @par Scaling and Overflow Behavior
- The function uses saturating arithmetic.
- Results outside of the allowable Q7 range [0x80 0x7F] are saturated.
- */
-#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
-
-#include "arm_helium_utils.h"
-
-void arm_mult_q7(
- const q7_t * pSrcA,
- const q7_t * pSrcB,
- q7_t * pDst,
- uint32_t blockSize)
-{
- uint32_t blkCnt; /* loop counters */
- q7x16_t vecA, vecB;
-
- /* Compute 16 outputs at a time */
- blkCnt = blockSize >> 4;
- while (blkCnt > 0U)
- {
- /*
- * C = A * B
- * Multiply the inputs and then store the results in the destination buffer.
- */
- vecA = vld1q(pSrcA);
- vecB = vld1q(pSrcB);
- vst1q(pDst, vqdmulhq(vecA, vecB));
- /*
- * Decrement the blockSize loop counter
- */
- blkCnt--;
- /*
- * advance vector source and destination pointers
- */
- pSrcA += 16;
- pSrcB += 16;
- pDst += 16;
- }
- /*
- * tail
- */
- blkCnt = blockSize & 0xF;
- if (blkCnt > 0U)
- {
- mve_pred16_t p0 = vctp8q(blkCnt);
- vecA = vld1q(pSrcA);
- vecB = vld1q(pSrcB);
- vstrbq_p(pDst, vqdmulhq(vecA, vecB), p0);
- }
-}
-
-#else
-void arm_mult_q7(
- const q7_t * pSrcA,
- const q7_t * pSrcB,
- q7_t * pDst,
- uint32_t blockSize)
-{
- uint32_t blkCnt; /* Loop counter */
-
-#if defined (ARM_MATH_LOOPUNROLL)
-
-#if defined (ARM_MATH_DSP)
- q7_t out1, out2, out3, out4; /* Temporary output variables */
-#endif
-
- /* Loop unrolling: Compute 4 outputs at a time */
- blkCnt = blockSize >> 2U;
-
- while (blkCnt > 0U)
- {
- /* C = A * B */
-
-#if defined (ARM_MATH_DSP)
- /* Multiply inputs and store results in temporary variables */
- out1 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
- out2 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
- out3 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
- out4 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
-
- /* Pack and store result in destination buffer (in single write) */
- write_q7x4_ia (&pDst, __PACKq7(out1, out2, out3, out4));
-#else
- *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
- *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
- *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
- *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
-#endif
-
- /* Decrement loop counter */
- blkCnt--;
- }
-
- /* Loop unrolling: Compute remaining outputs */
- blkCnt = blockSize % 0x4U;
-
-#else
-
- /* Initialize blkCnt with number of samples */
- blkCnt = blockSize;
-
-#endif /* #if defined (ARM_MATH_LOOPUNROLL) */
-
- while (blkCnt > 0U)
- {
- /* C = A * B */
-
- /* Multiply input and store result in destination buffer. */
- *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
-
- /* Decrement loop counter */
- blkCnt--;
- }
-
-}
-#endif /* defined(ARM_MATH_MVEI) */
-
-/**
- @} end of BasicMult group
- */
+/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_mult_q7.c
+ * Description: Q7 vector multiplication
+ *
+ * $Date: 18. March 2019
+ * $Revision: V1.6.0
+ *
+ * Target Processor: Cortex-M cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 2010-2019 ARM Limited or its affiliates. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "arm_math.h"
+
+/**
+ @ingroup groupMath
+ */
+
+/**
+ @addtogroup BasicMult
+ @{
+ */
+
+/**
+ @brief Q7 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
+
+ @par Scaling and Overflow Behavior
+ The function uses saturating arithmetic.
+ Results outside of the allowable Q7 range [0x80 0x7F] are saturated.
+ */
+
+void arm_mult_q7(
+ const q7_t * pSrcA,
+ const q7_t * pSrcB,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q7_t out1, out2, out3, out4; /* Temporary output variables */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+#if defined (ARM_MATH_DSP)
+ /* Multiply inputs and store results in temporary variables */
+ out1 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+ out2 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+ out3 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+ out4 = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+
+ /* Pack and store result in destination buffer (in single write) */
+ write_q7x4_ia (&pDst, __PACKq7(out1, out2, out3, out4));
+#else
+ *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+ *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+ *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+ *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+ /* Loop unrolling: Compute remaining outputs */
+ blkCnt = blockSize % 0x4U;
+
+#else
+
+ /* Initialize blkCnt with number of samples */
+ blkCnt = blockSize;
+
+#endif /* #if defined (ARM_MATH_LOOPUNROLL) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+ /* Multiply input and store result in destination buffer. */
+ *pDst++ = (q7_t) __SSAT((((q15_t) (*pSrcA++) * (*pSrcB++)) >> 7), 8);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicMult group
+ */
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