diff options
| author | joshua <joshua@joshuayun.com> | 2023-12-30 23:54:31 -0500 |
|---|---|---|
| committer | joshua <joshua@joshuayun.com> | 2023-12-30 23:54:31 -0500 |
| commit | 86608c6770cf08c138a2bdab5855072f64be09ef (patch) | |
| tree | 494a61b3ef37e76f9235a0d10f5c93d97290a35f /Drivers/CMSIS/DSP/Source/BasicMathFunctions | |
| download | sdr-software-master.tar.gz | |
Diffstat (limited to 'Drivers/CMSIS/DSP/Source/BasicMathFunctions')
37 files changed, 4889 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/BasicMathFunctions.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/BasicMathFunctions.c new file mode 100644 index 0000000..4d9f60a --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/BasicMathFunctions.c @@ -0,0 +1,63 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: BasicMathFunctions.c
+ * Description: Combination of all basic math function source files.
+ *
+ * $Date: 18. March 2019
+ * $Revision: V1.0.0
+ *
+ * Target Processor: Cortex-M cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 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_abs_f32.c"
+#include "arm_abs_q15.c"
+#include "arm_abs_q31.c"
+#include "arm_abs_q7.c"
+#include "arm_add_f32.c"
+#include "arm_add_q15.c"
+#include "arm_add_q31.c"
+#include "arm_add_q7.c"
+#include "arm_dot_prod_f32.c"
+#include "arm_dot_prod_q15.c"
+#include "arm_dot_prod_q31.c"
+#include "arm_dot_prod_q7.c"
+#include "arm_mult_f32.c"
+#include "arm_mult_q15.c"
+#include "arm_mult_q31.c"
+#include "arm_mult_q7.c"
+#include "arm_negate_f32.c"
+#include "arm_negate_q15.c"
+#include "arm_negate_q31.c"
+#include "arm_negate_q7.c"
+#include "arm_offset_f32.c"
+#include "arm_offset_q15.c"
+#include "arm_offset_q31.c"
+#include "arm_offset_q7.c"
+#include "arm_scale_f32.c"
+#include "arm_scale_q15.c"
+#include "arm_scale_q31.c"
+#include "arm_scale_q7.c"
+#include "arm_shift_q15.c"
+#include "arm_shift_q31.c"
+#include "arm_shift_q7.c"
+#include "arm_sub_f32.c"
+#include "arm_sub_q15.c"
+#include "arm_sub_q31.c"
+#include "arm_sub_q7.c"
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/CMakeLists.txt b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/CMakeLists.txt new file mode 100644 index 0000000..fdf2db2 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/CMakeLists.txt @@ -0,0 +1,16 @@ +cmake_minimum_required (VERSION 3.6)
+
+project(CMSISDSPBasicMath)
+
+
+file(GLOB SRC "./*_*.c")
+
+add_library(CMSISDSPBasicMath STATIC ${SRC})
+
+configdsp(CMSISDSPBasicMath ..)
+
+### Includes
+target_include_directories(CMSISDSPBasicMath PUBLIC "${DSP}/../../Include")
+
+
+
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c new file mode 100644 index 0000000..60db141 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_f32.c @@ -0,0 +1,146 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_abs_f32.c
+ * Description: Floating-point vector absolute value
+ *
+ * $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"
+#include <math.h>
+
+/**
+ @ingroup groupMath
+ */
+
+/**
+ @defgroup BasicAbs Vector Absolute Value
+
+ Computes the absolute value of a vector on an element-by-element basis.
+
+ <pre>
+ pDst[n] = abs(pSrc[n]), 0 <= n < blockSize.
+ </pre>
+
+ The functions support in-place computation allowing the source and
+ destination pointers to reference the same memory buffer.
+ There are separate functions for floating-point, Q7, Q15, and Q31 data types.
+ */
+
+/**
+ @addtogroup BasicAbs
+ @{
+ */
+
+/**
+ @brief Floating-point vector absolute value.
+ @param[in] pSrc points to the input vector
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+
+void arm_abs_f32(
+ const float32_t * pSrc,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined(ARM_MATH_NEON)
+ float32x4_t vec1;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = |A| */
+
+ /* Calculate absolute values and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrc);
+ res = vabsq_f32(vec1);
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrc += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = |A| */
+
+ /* Calculate absolute and store result in destination buffer. */
+ *pDst++ = fabsf(*pSrc++);
+
+ *pDst++ = fabsf(*pSrc++);
+
+ *pDst++ = fabsf(*pSrc++);
+
+ *pDst++ = fabsf(*pSrc++);
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = |A| */
+
+ /* Calculate absolute and store result in destination buffer. */
+ *pDst++ = fabsf(*pSrc++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAbs group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q15.c new file mode 100644 index 0000000..9aff180 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q15.c @@ -0,0 +1,132 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_abs_q15.c
+ * Description: Q15 vector absolute value
+ *
+ * $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 BasicAbs
+ @{
+ */
+
+/**
+ @brief Q15 vector absolute value.
+ @param[in] pSrc points to the 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.
+ The Q15 value -1 (0x8000) will be saturated to the maximum allowable positive value 0x7FFF.
+ */
+
+void arm_abs_q15(
+ const q15_t * pSrc,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q15_t in; /* Temporary input variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = |A| */
+
+ /* Calculate absolute of input (if -1 then saturated to 0x7fff) and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q15_t)__QSUB16(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q15_t) 0x8000) ? 0x7fff : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q15_t)__QSUB16(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q15_t) 0x8000) ? 0x7fff : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q15_t)__QSUB16(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q15_t) 0x8000) ? 0x7fff : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q15_t)__QSUB16(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q15_t) 0x8000) ? 0x7fff : -in);
+#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| */
+
+ /* Calculate absolute of input (if -1 then saturated to 0x7fff) and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q15_t)__QSUB16(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q15_t) 0x8000) ? 0x7fff : -in);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAbs group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c new file mode 100644 index 0000000..e9d027a --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q31.c @@ -0,0 +1,132 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_abs_q31.c
+ * Description: Q31 vector absolute value
+ *
+ * $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 BasicAbs
+ @{
+ */
+
+/**
+ @brief Q31 vector absolute value.
+ @param[in] pSrc points to the 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.
+ The Q31 value -1 (0x80000000) will be saturated to the maximum allowable positive value 0x7FFFFFFF.
+ */
+
+void arm_abs_q31(
+ const q31_t * pSrc,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q31_t in; /* Temporary variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = |A| */
+
+ /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in);
+#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| */
+
+ /* Calculate absolute of input (if -1 then saturated to 0x7fffffff) and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q31_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == INT32_MIN) ? INT32_MAX : -in);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAbs group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q7.c new file mode 100644 index 0000000..060b967 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_abs_q7.c @@ -0,0 +1,134 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_abs_q7.c
+ * Description: Q7 vector absolute value
+ *
+ * $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 BasicAbs
+ @{
+ */
+
+/**
+ @brief Q7 vector absolute value.
+ @param[in] pSrc points to the input vector
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+
+ @par Conditions for optimum performance
+ Input and output buffers should be aligned by 32-bit
+ @par Scaling and Overflow Behavior
+ The function uses saturating arithmetic.
+ The Q7 value -1 (0x80) will be saturated to the maximum allowable positive value 0x7F.
+ */
+
+void arm_abs_q7(
+ const q7_t * pSrc,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q7_t in; /* Temporary input variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = |A| */
+
+ /* Calculate absolute of input (if -1 then saturated to 0x7f) and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q7_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q7_t) 0x80) ? (q7_t) 0x7f : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q7_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q7_t) 0x80) ? (q7_t) 0x7f : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q7_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q7_t) 0x80) ? (q7_t) 0x7f : -in);
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q7_t)__QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q7_t) 0x80) ? (q7_t) 0x7f : -in);
+#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| */
+
+ /* Calculate absolute of input (if -1 then saturated to 0x7f) and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (in > 0) ? in : (q7_t) __QSUB(0, in);
+#else
+ *pDst++ = (in > 0) ? in : ((in == (q7_t) 0x80) ? (q7_t) 0x7f : -in);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAbs group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_f32.c new file mode 100644 index 0000000..8a485fa --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_f32.c @@ -0,0 +1,145 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_add_f32.c
+ * Description: Floating-point vector addition
+ *
+ * $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
+ */
+
+/**
+ @defgroup BasicAdd Vector Addition
+
+ Element-by-element addition 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 BasicAdd
+ @{
+ */
+
+/**
+ @brief Floating-point vector addition.
+ @param[in] pSrcA points to first input vector
+ @param[in] pSrcB points to second input vector
+ @param[out] pDst points to output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+
+void arm_add_f32(
+ const float32_t * pSrcA,
+ const float32_t * pSrcB,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined(ARM_MATH_NEON)
+ float32x4_t vec1;
+ float32x4_t vec2;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + B */
+
+ /* Add and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrcA);
+ vec2 = vld1q_f32(pSrcB);
+ res = vaddq_f32(vec1, vec2);
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrcA += 4;
+ pSrcB += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + B */
+
+ /* Add and store result in destination buffer. */
+ *pDst++ = (*pSrcA++) + (*pSrcB++);
+ *pDst++ = (*pSrcA++) + (*pSrcB++);
+ *pDst++ = (*pSrcA++) + (*pSrcB++);
+ *pDst++ = (*pSrcA++) + (*pSrcB++);
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + B */
+
+ /* Add and store result in destination buffer. */
+ *pDst++ = (*pSrcA++) + (*pSrcB++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAdd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q15.c new file mode 100644 index 0000000..1363b76 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q15.c @@ -0,0 +1,126 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_add_q15.c
+ * Description: Q15 vector addition
+ *
+ * $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 BasicAdd
+ @{
+ */
+
+/**
+ @brief Q15 vector addition.
+ @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 Q15 range [0x8000 0x7FFF] are saturated.
+ */
+
+void arm_add_q15(
+ const q15_t * pSrcA,
+ const q15_t * pSrcB,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t inA1, inA2;
+ q31_t inB1, inB2;
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + B */
+
+#if defined (ARM_MATH_DSP)
+ /* read 2 times 2 samples at a time from sourceA */
+ inA1 = read_q15x2_ia ((q15_t **) &pSrcA);
+ inA2 = read_q15x2_ia ((q15_t **) &pSrcA);
+ /* read 2 times 2 samples at a time from sourceB */
+ inB1 = read_q15x2_ia ((q15_t **) &pSrcB);
+ inB2 = read_q15x2_ia ((q15_t **) &pSrcB);
+
+ /* Add and store 2 times 2 samples at a time */
+ write_q15x2_ia (&pDst, __QADD16(inA1, inB1));
+ write_q15x2_ia (&pDst, __QADD16(inA2, inB2));
+#else
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ + *pSrcB++), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ + *pSrcB++), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ + *pSrcB++), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ + *pSrcB++), 16);
+#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 */
+
+ /* Add and store result in destination buffer. */
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (q15_t) __QADD16(*pSrcA++, *pSrcB++);
+#else
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ + *pSrcB++), 16);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAdd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q31.c new file mode 100644 index 0000000..2f8226d --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q31.c @@ -0,0 +1,108 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_add_q31.c
+ * Description: Q31 vector addition
+ *
+ * $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 BasicAdd
+ @{
+ */
+
+/**
+ @brief Q31 vector addition.
+ @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 Q31 range [0x80000000 0x7FFFFFFF] are saturated.
+ */
+
+void arm_add_q31(
+ const q31_t * pSrcA,
+ const q31_t * pSrcB,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + B */
+
+ /* Add and store result in destination buffer. */
+ *pDst++ = __QADD(*pSrcA++, *pSrcB++);
+
+ *pDst++ = __QADD(*pSrcA++, *pSrcB++);
+
+ *pDst++ = __QADD(*pSrcA++, *pSrcB++);
+
+ *pDst++ = __QADD(*pSrcA++, *pSrcB++);
+
+ /* 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 */
+
+ /* Add and store result in destination buffer. */
+ *pDst++ = __QADD(*pSrcA++, *pSrcB++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAdd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q7.c new file mode 100644 index 0000000..ac57c35 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_add_q7.c @@ -0,0 +1,109 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_add_q7.c
+ * Description: Q7 vector addition
+ *
+ * $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 BasicAdd
+ @{
+ */
+
+/**
+ @brief Q7 vector addition.
+ @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_add_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)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + B */
+
+#if defined (ARM_MATH_DSP)
+ /* Add and store result in destination buffer (4 samples at a time). */
+ write_q7x4_ia (&pDst, __QADD8 (read_q7x4_ia ((q7_t **) &pSrcA), read_q7x4_ia ((q7_t **) &pSrcB)));
+#else
+ *pDst++ = (q7_t) __SSAT ((q15_t) *pSrcA++ + *pSrcB++, 8);
+ *pDst++ = (q7_t) __SSAT ((q15_t) *pSrcA++ + *pSrcB++, 8);
+ *pDst++ = (q7_t) __SSAT ((q15_t) *pSrcA++ + *pSrcB++, 8);
+ *pDst++ = (q7_t) __SSAT ((q15_t) *pSrcA++ + *pSrcB++, 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 */
+
+ /* Add and store result in destination buffer. */
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrcA++ + *pSrcB++, 8);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicAdd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_f32.c new file mode 100644 index 0000000..41ec12e --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_f32.c @@ -0,0 +1,163 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_dot_prod_f32.c
+ * Description: Floating-point dot product
+ *
+ * $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
+ */
+
+/**
+ @defgroup BasicDotProd Vector Dot Product
+
+ Computes the dot product of two vectors.
+ The vectors are multiplied element-by-element and then summed.
+
+ <pre>
+ sum = pSrcA[0]*pSrcB[0] + pSrcA[1]*pSrcB[1] + ... + pSrcA[blockSize-1]*pSrcB[blockSize-1]
+ </pre>
+
+ There are separate functions for floating-point, Q7, Q15, and Q31 data types.
+ */
+
+/**
+ @addtogroup BasicDotProd
+ @{
+ */
+
+/**
+ @brief Dot product of floating-point vectors.
+ @param[in] pSrcA points to the first input vector.
+ @param[in] pSrcB points to the second input vector.
+ @param[in] blockSize number of samples in each vector.
+ @param[out] result output result returned here.
+ @return none
+ */
+
+void arm_dot_prod_f32(
+ const float32_t * pSrcA,
+ const float32_t * pSrcB,
+ uint32_t blockSize,
+ float32_t * result)
+{
+ uint32_t blkCnt; /* Loop counter */
+ float32_t sum = 0.0f; /* Temporary return variable */
+
+#if defined(ARM_MATH_NEON)
+ float32x4_t vec1;
+ float32x4_t vec2;
+ float32x4_t res;
+ float32x4_t accum = vdupq_n_f32(0);
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ vec1 = vld1q_f32(pSrcA);
+ vec2 = vld1q_f32(pSrcB);
+
+ while (blkCnt > 0U)
+ {
+ /* C = A[0]*B[0] + A[1]*B[1] + A[2]*B[2] + ... + A[blockSize-1]*B[blockSize-1] */
+ /* Calculate dot product and then store the result in a temporary buffer. */
+
+ accum = vmlaq_f32(accum, vec1, vec2);
+
+ /* Increment pointers */
+ pSrcA += 4;
+ pSrcB += 4;
+
+ vec1 = vld1q_f32(pSrcA);
+ vec2 = vld1q_f32(pSrcB);
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+#if __aarch64__
+ sum = vpadds_f32(vpadd_f32(vget_low_f32(accum), vget_high_f32(accum)));
+#else
+ sum = (vpadd_f32(vget_low_f32(accum), vget_high_f32(accum)))[0] + (vpadd_f32(vget_low_f32(accum), vget_high_f32(accum)))[1];
+#endif
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ 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[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+ /* Calculate dot product and store result in a temporary buffer. */
+ sum += (*pSrcA++) * (*pSrcB++);
+
+ sum += (*pSrcA++) * (*pSrcB++);
+
+ sum += (*pSrcA++) * (*pSrcB++);
+
+ sum += (*pSrcA++) * (*pSrcB++);
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+ /* Calculate dot product and store result in a temporary buffer. */
+ sum += (*pSrcA++) * (*pSrcB++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+ /* Store result in destination buffer */
+ *result = sum;
+}
+
+/**
+ @} end of BasicDotProd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q15.c new file mode 100644 index 0000000..2fa30fc --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q15.c @@ -0,0 +1,120 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_dot_prod_q15.c
+ * Description: Q15 dot product
+ *
+ * $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 BasicDotProd
+ @{
+ */
+
+/**
+ @brief Dot product of Q15 vectors.
+ @param[in] pSrcA points to the first input vector
+ @param[in] pSrcB points to the second input vector
+ @param[in] blockSize number of samples in each vector
+ @param[out] result output result returned here
+ @return none
+
+ @par Scaling and Overflow Behavior
+ The intermediate multiplications are in 1.15 x 1.15 = 2.30 format and these
+ results are added to a 64-bit accumulator in 34.30 format.
+ Nonsaturating additions are used and given that there are 33 guard bits in the accumulator
+ there is no risk of overflow.
+ The return result is in 34.30 format.
+ */
+
+void arm_dot_prod_q15(
+ const q15_t * pSrcA,
+ const q15_t * pSrcB,
+ uint32_t blockSize,
+ q63_t * result)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q63_t sum = 0; /* Temporary return variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+#if defined (ARM_MATH_DSP)
+ /* Calculate dot product and store result in a temporary buffer. */
+ sum = __SMLALD(read_q15x2_ia ((q15_t **) &pSrcA), read_q15x2_ia ((q15_t **) &pSrcB), sum);
+ sum = __SMLALD(read_q15x2_ia ((q15_t **) &pSrcA), read_q15x2_ia ((q15_t **) &pSrcB), sum);
+#else
+ sum += (q63_t)((q31_t) *pSrcA++ * *pSrcB++);
+ sum += (q63_t)((q31_t) *pSrcA++ * *pSrcB++);
+ sum += (q63_t)((q31_t) *pSrcA++ * *pSrcB++);
+ sum += (q63_t)((q31_t) *pSrcA++ * *pSrcB++);
+#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[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+ /* Calculate dot product and store result in a temporary buffer. */
+//#if defined (ARM_MATH_DSP)
+// sum = __SMLALD(*pSrcA++, *pSrcB++, sum);
+//#else
+ sum += (q63_t)((q31_t) *pSrcA++ * *pSrcB++);
+//#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+ /* Store result in destination buffer in 34.30 format */
+ *result = sum;
+}
+
+/**
+ @} end of BasicDotProd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q31.c new file mode 100644 index 0000000..954e0bd --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q31.c @@ -0,0 +1,115 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_dot_prod_q31.c
+ * Description: Q31 dot product
+ *
+ * $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 BasicDotProd
+ @{
+ */
+
+/**
+ @brief Dot product of Q31 vectors.
+ @param[in] pSrcA points to the first input vector.
+ @param[in] pSrcB points to the second input vector.
+ @param[in] blockSize number of samples in each vector.
+ @param[out] result output result returned here.
+ @return none
+
+ @par Scaling and Overflow Behavior
+ The intermediate multiplications are in 1.31 x 1.31 = 2.62 format and these
+ are truncated to 2.48 format by discarding the lower 14 bits.
+ The 2.48 result is then added without saturation to a 64-bit accumulator in 16.48 format.
+ There are 15 guard bits in the accumulator and there is no risk of overflow as long as
+ the length of the vectors is less than 2^16 elements.
+ The return result is in 16.48 format.
+ */
+
+void arm_dot_prod_q31(
+ const q31_t * pSrcA,
+ const q31_t * pSrcB,
+ uint32_t blockSize,
+ q63_t * result)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q63_t sum = 0; /* Temporary return variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+ /* Calculate dot product and store result in a temporary buffer. */
+ sum += ((q63_t) *pSrcA++ * *pSrcB++) >> 14U;
+
+ sum += ((q63_t) *pSrcA++ * *pSrcB++) >> 14U;
+
+ sum += ((q63_t) *pSrcA++ * *pSrcB++) >> 14U;
+
+ sum += ((q63_t) *pSrcA++ * *pSrcB++) >> 14U;
+
+ /* 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[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+ /* Calculate dot product and store result in a temporary buffer. */
+ sum += ((q63_t) *pSrcA++ * *pSrcB++) >> 14U;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+ /* Store result in destination buffer in 16.48 format */
+ *result = sum;
+}
+
+/**
+ @} end of BasicDotProd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q7.c new file mode 100644 index 0000000..e8ba22b --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_q7.c @@ -0,0 +1,139 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_dot_prod_q7.c
+ * Description: Q7 dot product
+ *
+ * $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 BasicDotProd
+ @{
+ */
+
+/**
+ @brief Dot product of Q7 vectors.
+ @param[in] pSrcA points to the first input vector
+ @param[in] pSrcB points to the second input vector
+ @param[in] blockSize number of samples in each vector
+ @param[out] result output result returned here
+ @return none
+
+ @par Scaling and Overflow Behavior
+ The intermediate multiplications are in 1.7 x 1.7 = 2.14 format and these
+ results are added to an accumulator in 18.14 format.
+ Nonsaturating additions are used and there is no danger of wrap around as long as
+ the vectors are less than 2^18 elements long.
+ The return result is in 18.14 format.
+ */
+
+void arm_dot_prod_q7(
+ const q7_t * pSrcA,
+ const q7_t * pSrcB,
+ uint32_t blockSize,
+ q31_t * result)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q31_t sum = 0; /* Temporary return variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t input1, input2; /* Temporary variables */
+ q31_t inA1, inA2, inB1, inB2; /* Temporary variables */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+#if defined (ARM_MATH_DSP)
+ /* read 4 samples at a time from sourceA */
+ input1 = read_q7x4_ia ((q7_t **) &pSrcA);
+ /* read 4 samples at a time from sourceB */
+ input2 = read_q7x4_ia ((q7_t **) &pSrcB);
+
+ /* extract two q7_t samples to q15_t samples */
+ inA1 = __SXTB16(__ROR(input1, 8));
+ /* extract reminaing two samples */
+ inA2 = __SXTB16(input1);
+ /* extract two q7_t samples to q15_t samples */
+ inB1 = __SXTB16(__ROR(input2, 8));
+ /* extract reminaing two samples */
+ inB2 = __SXTB16(input2);
+
+ /* multiply and accumulate two samples at a time */
+ sum = __SMLAD(inA1, inB1, sum);
+ sum = __SMLAD(inA2, inB2, sum);
+#else
+ sum += (q31_t) ((q15_t) *pSrcA++ * *pSrcB++);
+ sum += (q31_t) ((q15_t) *pSrcA++ * *pSrcB++);
+ sum += (q31_t) ((q15_t) *pSrcA++ * *pSrcB++);
+ sum += (q31_t) ((q15_t) *pSrcA++ * *pSrcB++);
+#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[0]* B[0] + A[1]* B[1] + A[2]* B[2] + .....+ A[blockSize-1]* B[blockSize-1] */
+
+ /* Calculate dot product and store result in a temporary buffer. */
+//#if defined (ARM_MATH_DSP)
+// sum = __SMLAD(*pSrcA++, *pSrcB++, sum);
+//#else
+ sum += (q31_t) ((q15_t) *pSrcA++ * *pSrcB++);
+//#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+ /* Store result in destination buffer in 18.14 format */
+ *result = sum;
+}
+
+/**
+ @} end of BasicDotProd group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_f32.c new file mode 100644 index 0000000..5a35b00 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_f32.c @@ -0,0 +1,148 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_mult_f32.c
+ * Description: Floating-point 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
+ */
+
+/**
+ @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(
+ const float32_t * pSrcA,
+ const float32_t * pSrcB,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined(ARM_MATH_NEON)
+ float32x4_t vec1;
+ float32x4_t vec2;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+ /* Multiply the inputs and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrcA);
+ vec2 = vld1q_f32(pSrcB);
+ res = vmulq_f32(vec1, vec2);
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrcA += 4;
+ pSrcB += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+ /* Multiply inputs and store result in destination buffer. */
+ *pDst++ = (*pSrcA++) * (*pSrcB++);
+
+ *pDst++ = (*pSrcA++) * (*pSrcB++);
+
+ *pDst++ = (*pSrcA++) * (*pSrcB++);
+
+ *pDst++ = (*pSrcA++) * (*pSrcB++);
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+ /* Multiply input and store result in destination buffer. */
+ *pDst++ = (*pSrcA++) * (*pSrcB++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicMult group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c new file mode 100644 index 0000000..270dc73 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q15.c @@ -0,0 +1,143 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_mult_q15.c
+ * Description: Q15 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 Q15 vector multiplication
+ @param[in] pSrcA points to first input vector
+ @param[in] pSrcB points to second input vector
+ @param[out] pDst points to 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 Q15 range [0x8000 0x7FFF] are saturated.
+ */
+
+void arm_mult_q15(
+ const q15_t * pSrcA,
+ const q15_t * pSrcB,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t inA1, inA2, inB1, inB2; /* Temporary input variables */
+ q15_t out1, out2, out3, out4; /* Temporary output variables */
+ q31_t mul1, mul2, mul3, mul4; /* Temporary variables */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+#if defined (ARM_MATH_DSP)
+ /* read 2 samples at a time from sourceA */
+ inA1 = read_q15x2_ia ((q15_t **) &pSrcA);
+ /* read 2 samples at a time from sourceB */
+ inB1 = read_q15x2_ia ((q15_t **) &pSrcB);
+ /* read 2 samples at a time from sourceA */
+ inA2 = read_q15x2_ia ((q15_t **) &pSrcA);
+ /* read 2 samples at a time from sourceB */
+ inB2 = read_q15x2_ia ((q15_t **) &pSrcB);
+
+ /* multiply mul = sourceA * sourceB */
+ mul1 = (q31_t) ((q15_t) (inA1 >> 16) * (q15_t) (inB1 >> 16));
+ mul2 = (q31_t) ((q15_t) (inA1 ) * (q15_t) (inB1 ));
+ mul3 = (q31_t) ((q15_t) (inA2 >> 16) * (q15_t) (inB2 >> 16));
+ mul4 = (q31_t) ((q15_t) (inA2 ) * (q15_t) (inB2 ));
+
+ /* saturate result to 16 bit */
+ out1 = (q15_t) __SSAT(mul1 >> 15, 16);
+ out2 = (q15_t) __SSAT(mul2 >> 15, 16);
+ out3 = (q15_t) __SSAT(mul3 >> 15, 16);
+ out4 = (q15_t) __SSAT(mul4 >> 15, 16);
+
+ /* store result to destination */
+#ifndef ARM_MATH_BIG_ENDIAN
+ write_q15x2_ia (&pDst, __PKHBT(out2, out1, 16));
+ write_q15x2_ia (&pDst, __PKHBT(out4, out3, 16));
+#else
+ write_q15x2_ia (&pDst, __PKHBT(out1, out2, 16));
+ write_q15x2_ia (&pDst, __PKHBT(out3, out4, 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+#else
+ *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16);
+ *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16);
+ *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16);
+ *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16);
+#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 inputs and store result in destination buffer. */
+ *pDst++ = (q15_t) __SSAT((((q31_t) (*pSrcA++) * (*pSrcB++)) >> 15), 16);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicMult group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q31.c new file mode 100644 index 0000000..b6660de --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q31.c @@ -0,0 +1,119 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_mult_q31.c
+ * Description: Q31 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 Q31 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 Q31 range[0x80000000 0x7FFFFFFF] are saturated.
+ */
+
+void arm_mult_q31(
+ const q31_t * pSrcA,
+ const q31_t * pSrcB,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q31_t out; /* Temporary output variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * B */
+
+ /* Multiply inputs and store result in destination buffer. */
+ out = ((q63_t) *pSrcA++ * *pSrcB++) >> 32;
+ out = __SSAT(out, 31);
+ *pDst++ = out << 1U;
+
+ out = ((q63_t) *pSrcA++ * *pSrcB++) >> 32;
+ out = __SSAT(out, 31);
+ *pDst++ = out << 1U;
+
+ out = ((q63_t) *pSrcA++ * *pSrcB++) >> 32;
+ out = __SSAT(out, 31);
+ *pDst++ = out << 1U;
+
+ out = ((q63_t) *pSrcA++ * *pSrcB++) >> 32;
+ out = __SSAT(out, 31);
+ *pDst++ = out << 1U;
+
+ /* 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 inputs and store result in destination buffer. */
+ out = ((q63_t) *pSrcA++ * *pSrcB++) >> 32;
+ out = __SSAT(out, 31);
+ *pDst++ = out << 1U;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicMult group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c new file mode 100644 index 0000000..b50c109 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_mult_q7.c @@ -0,0 +1,119 @@ +/* ----------------------------------------------------------------------
+ * 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
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_f32.c new file mode 100644 index 0000000..5b2268c --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_f32.c @@ -0,0 +1,145 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_negate_f32.c
+ * Description: Negates floating-point vectors
+ *
+ * $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
+ */
+
+/**
+ @defgroup BasicNegate Vector Negate
+
+ Negates the elements of a vector.
+
+ <pre>
+ pDst[n] = -pSrc[n], 0 <= n < blockSize.
+ </pre>
+
+ The functions support in-place computation allowing the source and
+ destination pointers to reference the same memory buffer.
+ There are separate functions for floating-point, Q7, Q15, and Q31 data types.
+ */
+
+/**
+ @addtogroup BasicNegate
+ @{
+ */
+
+/**
+ @brief Negates the elements of a floating-point vector.
+ @param[in] pSrc points to input vector.
+ @param[out] pDst points to output vector.
+ @param[in] blockSize number of samples in each vector.
+ @return none
+ */
+
+void arm_negate_f32(
+ const float32_t * pSrc,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined(ARM_MATH_NEON_EXPERIMENTAL)
+ float32x4_t vec1;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = -A */
+
+ /* Negate and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrc);
+ res = vnegq_f32(vec1);
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrc += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = -A */
+
+ /* Negate and store result in destination buffer. */
+ *pDst++ = -*pSrc++;
+
+ *pDst++ = -*pSrc++;
+
+ *pDst++ = -*pSrc++;
+
+ *pDst++ = -*pSrc++;
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON_EXPERIMENTAL) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = -A */
+
+ /* Negate and store result in destination buffer. */
+ *pDst++ = -*pSrc++;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicNegate group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q15.c new file mode 100644 index 0000000..9c8ea7b --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q15.c @@ -0,0 +1,126 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_negate_q15.c
+ * Description: Negates Q15 vectors
+ *
+ * $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 BasicNegate
+ @{
+ */
+
+/**
+ @brief Negates the elements of a Q15 vector.
+ @param[in] pSrc points to the input vector.
+ @param[out] pDst points to the output vector.
+ @param[in] blockSize number of samples in each vector.
+ @return none
+
+ @par Conditions for optimum performance
+ Input and output buffers should be aligned by 32-bit
+ @par Scaling and Overflow Behavior
+ The function uses saturating arithmetic.
+ The Q15 value -1 (0x8000) is saturated to the maximum allowable positive value 0x7FFF.
+ */
+
+void arm_negate_q15(
+ const q15_t * pSrc,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q15_t in; /* Temporary input variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t in1; /* Temporary input variables */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = -A */
+
+#if defined (ARM_MATH_DSP)
+ /* Negate and store result in destination buffer (2 samples at a time). */
+ in1 = read_q15x2_ia ((q15_t **) &pSrc);
+ write_q15x2_ia (&pDst, __QSUB16(0, in1));
+
+ in1 = read_q15x2_ia ((q15_t **) &pSrc);
+ write_q15x2_ia (&pDst, __QSUB16(0, in1));
+#else
+ in = *pSrc++;
+ *pDst++ = (in == (q15_t) 0x8000) ? (q15_t) 0x7fff : -in;
+
+ in = *pSrc++;
+ *pDst++ = (in == (q15_t) 0x8000) ? (q15_t) 0x7fff : -in;
+
+ in = *pSrc++;
+ *pDst++ = (in == (q15_t) 0x8000) ? (q15_t) 0x7fff : -in;
+
+ in = *pSrc++;
+ *pDst++ = (in == (q15_t) 0x8000) ? (q15_t) 0x7fff : -in;
+#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 */
+
+ /* Negate and store result in destination buffer. */
+ in = *pSrc++;
+ *pDst++ = (in == (q15_t) 0x8000) ? (q15_t) 0x7fff : -in;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicNegate group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c new file mode 100644 index 0000000..f01b1d9 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q31.c @@ -0,0 +1,132 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_negate_q31.c
+ * Description: Negates Q31 vectors
+ *
+ * $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 BasicNegate
+ @{
+ */
+
+/**
+ @brief Negates the elements of a Q31 vector.
+ @param[in] pSrc points to the 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.
+ The Q31 value -1 (0x80000000) is saturated to the maximum allowable positive value 0x7FFFFFFF.
+ */
+
+void arm_negate_q31(
+ const q31_t * pSrc,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q31_t in; /* Temporary input variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = -A */
+
+ /* Negate and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QSUB(0, in);
+#else
+ *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QSUB(0, in);
+#else
+ *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QSUB(0, in);
+#else
+ *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
+#endif
+
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QSUB(0, in);
+#else
+ *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
+#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 */
+
+ /* Negate and store result in destination buffer. */
+ in = *pSrc++;
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QSUB(0, in);
+#else
+ *pDst++ = (in == INT32_MIN) ? INT32_MAX : -in;
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicNegate group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q7.c new file mode 100644 index 0000000..a27223f --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_negate_q7.c @@ -0,0 +1,126 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_negate_q7.c
+ * Description: Negates Q7 vectors
+ *
+ * $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 BasicNegate
+ @{
+ */
+
+/**
+ @brief Negates the elements of a Q7 vector.
+ @param[in] pSrc points to the 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.
+ The Q7 value -1 (0x80) is saturated to the maximum allowable positive value 0x7F.
+ */
+
+void arm_negate_q7(
+ const q7_t * pSrc,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q7_t in; /* Temporary input variable */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t in1; /* Temporary input variable */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = -A */
+
+#if defined (ARM_MATH_DSP)
+ /* Negate and store result in destination buffer (4 samples at a time). */
+ in1 = read_q7x4_ia ((q7_t **) &pSrc);
+ write_q7x4_ia (&pDst, __QSUB8(0, in1));
+#else
+ in = *pSrc++;
+ *pDst++ = (in == (q7_t) 0x80) ? (q7_t) 0x7f : -in;
+
+ in = *pSrc++;
+ *pDst++ = (in == (q7_t) 0x80) ? (q7_t) 0x7f : -in;
+
+ in = *pSrc++;
+ *pDst++ = (in == (q7_t) 0x80) ? (q7_t) 0x7f : -in;
+
+ in = *pSrc++;
+ *pDst++ = (in == (q7_t) 0x80) ? (q7_t) 0x7f : -in;
+#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 */
+
+ /* Negate and store result in destination buffer. */
+ in = *pSrc++;
+
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (q7_t) __QSUB(0, in);
+#else
+ *pDst++ = (in == (q7_t) 0x80) ? (q7_t) 0x7f : -in;
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicNegate group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_f32.c new file mode 100644 index 0000000..aef5d41 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_f32.c @@ -0,0 +1,147 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_offset_f32.c
+ * Description: Floating-point vector offset
+ *
+ * $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
+ */
+
+/**
+ @defgroup BasicOffset Vector Offset
+
+ Adds a constant offset to each element of a vector.
+
+ <pre>
+ pDst[n] = pSrc[n] + offset, 0 <= n < blockSize.
+ </pre>
+
+ The functions support in-place computation allowing the source and
+ destination pointers to reference the same memory buffer.
+ There are separate functions for floating-point, Q7, Q15, and Q31 data types.
+ */
+
+/**
+ @addtogroup BasicOffset
+ @{
+ */
+
+/**
+ @brief Adds a constant offset to a floating-point vector.
+ @param[in] pSrc points to the input vector
+ @param[in] offset is the offset to be added
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+
+void arm_offset_f32(
+ const float32_t * pSrc,
+ float32_t offset,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined(ARM_MATH_NEON_EXPERIMENTAL)
+ float32x4_t vec1;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + offset */
+
+ /* Add offset and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrc);
+ res = vaddq_f32(vec1,vdupq_n_f32(offset));
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrc += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + offset */
+
+ /* Add offset and store result in destination buffer. */
+ *pDst++ = (*pSrc++) + offset;
+
+ *pDst++ = (*pSrc++) + offset;
+
+ *pDst++ = (*pSrc++) + offset;
+
+ *pDst++ = (*pSrc++) + offset;
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON_EXPERIMENTAL) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + offset */
+
+ /* Add offset and store result in destination buffer. */
+ *pDst++ = (*pSrc++) + offset;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicOffset group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q15.c new file mode 100644 index 0000000..196efb6 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q15.c @@ -0,0 +1,121 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_offset_q15.c
+ * Description: Q15 vector offset
+ *
+ * $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 BasicOffset
+ @{
+ */
+
+/**
+ @brief Adds a constant offset to a Q15 vector.
+ @param[in] pSrc points to the input vector
+ @param[in] offset is the offset to be added
+ @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 Q15 range [0x8000 0x7FFF] are saturated.
+ */
+
+void arm_offset_q15(
+ const q15_t * pSrc,
+ q15_t offset,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t offset_packed; /* Offset packed to 32 bit */
+
+ /* Offset is packed to 32 bit in order to use SIMD32 for addition */
+ offset_packed = __PKHBT(offset, offset, 16);
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + offset */
+
+#if defined (ARM_MATH_DSP)
+ /* Add offset and store result in destination buffer (2 samples at a time). */
+ write_q15x2_ia (&pDst, __QADD16(read_q15x2_ia ((q15_t **) &pSrc), offset_packed));
+ write_q15x2_ia (&pDst, __QADD16(read_q15x2_ia ((q15_t **) &pSrc), offset_packed));
+#else
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrc++ + offset), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrc++ + offset), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrc++ + offset), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrc++ + offset), 16);
+#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 + offset */
+
+ /* Add offset and store result in destination buffer. */
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (q15_t) __QADD16(*pSrc++, offset);
+#else
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrc++ + offset), 16);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicOffset group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q31.c new file mode 100644 index 0000000..b043c85 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q31.c @@ -0,0 +1,128 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_offset_q31.c
+ * Description: Q31 vector offset
+ *
+ * $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 BasicOffset
+ @{
+ */
+
+/**
+ @brief Adds a constant offset to a Q31 vector.
+ @param[in] pSrc points to the input vector
+ @param[in] offset is the offset to be added
+ @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 Q31 range [0x80000000 0x7FFFFFFF] are saturated.
+ */
+
+void arm_offset_q31(
+ const q31_t * pSrc,
+ q31_t offset,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + offset */
+
+ /* Add offset and store result in destination buffer. */
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QADD(*pSrc++, offset);
+#else
+ *pDst++ = (q31_t) clip_q63_to_q31((q63_t) * pSrc++ + offset);
+#endif
+
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QADD(*pSrc++, offset);
+#else
+ *pDst++ = (q31_t) clip_q63_to_q31((q63_t) * pSrc++ + offset);
+#endif
+
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QADD(*pSrc++, offset);
+#else
+ *pDst++ = (q31_t) clip_q63_to_q31((q63_t) * pSrc++ + offset);
+#endif
+
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QADD(*pSrc++, offset);
+#else
+ *pDst++ = (q31_t) clip_q63_to_q31((q63_t) * pSrc++ + offset);
+#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 + offset */
+
+ /* Add offset and store result in destination buffer. */
+#if defined (ARM_MATH_DSP)
+ *pDst++ = __QADD(*pSrc++, offset);
+#else
+ *pDst++ = (q31_t) clip_q63_to_q31((q63_t) * pSrc++ + offset);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicOffset group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q7.c new file mode 100644 index 0000000..95ccfda --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_offset_q7.c @@ -0,0 +1,116 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_offset_q7.c
+ * Description: Q7 vector offset
+ *
+ * $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 BasicOffset
+ @{
+ */
+
+/**
+ @brief Adds a constant offset to a Q7 vector.
+ @param[in] pSrc points to the input vector
+ @param[in] offset is the offset to be added
+ @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_offset_q7(
+ const q7_t * pSrc,
+ q7_t offset,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t offset_packed; /* Offset packed to 32 bit */
+
+ /* Offset is packed to 32 bit in order to use SIMD32 for addition */
+ offset_packed = __PACKq7(offset, offset, offset, offset);
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A + offset */
+
+#if defined (ARM_MATH_DSP)
+ /* Add offset and store result in destination buffer (4 samples at a time). */
+ write_q7x4_ia (&pDst, __QADD8(read_q7x4_ia ((q7_t **) &pSrc), offset_packed));
+#else
+ *pDst++ = (q7_t) __SSAT(*pSrc++ + offset, 8);
+ *pDst++ = (q7_t) __SSAT(*pSrc++ + offset, 8);
+ *pDst++ = (q7_t) __SSAT(*pSrc++ + offset, 8);
+ *pDst++ = (q7_t) __SSAT(*pSrc++ + offset, 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 + offset */
+
+ /* Add offset and store result in destination buffer. */
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrc++ + offset, 8);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicOffset group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_f32.c new file mode 100644 index 0000000..38327cc --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_f32.c @@ -0,0 +1,159 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_scale_f32.c
+ * Description: Multiplies a floating-point vector by a scalar
+ *
+ * $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
+ */
+
+/**
+ @defgroup BasicScale Vector Scale
+
+ Multiply a vector by a scalar value. For floating-point data, the algorithm used is:
+
+ <pre>
+ pDst[n] = pSrc[n] * scale, 0 <= n < blockSize.
+ </pre>
+
+ In the fixed-point Q7, Q15, and Q31 functions, <code>scale</code> is represented by
+ a fractional multiplication <code>scaleFract</code> and an arithmetic shift <code>shift</code>.
+ The shift allows the gain of the scaling operation to exceed 1.0.
+ The algorithm used with fixed-point data is:
+
+ <pre>
+ pDst[n] = (pSrc[n] * scaleFract) << shift, 0 <= n < blockSize.
+ </pre>
+
+ The overall scale factor applied to the fixed-point data is
+ <pre>
+ scale = scaleFract * 2^shift.
+ </pre>
+
+ The functions support in-place computation allowing the source and destination
+ pointers to reference the same memory buffer.
+ */
+
+/**
+ @addtogroup BasicScale
+ @{
+ */
+
+/**
+ @brief Multiplies a floating-point vector by a scalar.
+ @param[in] pSrc points to the input vector
+ @param[in] scale scale factor to be applied
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+ */
+
+void arm_scale_f32(
+ const float32_t *pSrc,
+ float32_t scale,
+ float32_t *pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+#if defined(ARM_MATH_NEON_EXPERIMENTAL)
+ float32x4_t vec1;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale the input and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrc);
+ res = vmulq_f32(vec1, vdupq_n_f32(scale));
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrc += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale input and store result in destination buffer. */
+ *pDst++ = (*pSrc++) * scale;
+
+ *pDst++ = (*pSrc++) * scale;
+
+ *pDst++ = (*pSrc++) * scale;
+
+ *pDst++ = (*pSrc++) * scale;
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON_EXPERIMENTAL) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale input and store result in destination buffer. */
+ *pDst++ = (*pSrc++) * scale;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicScale group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c new file mode 100644 index 0000000..fc3f2ee --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c @@ -0,0 +1,144 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_scale_q15.c
+ * Description: Multiplies a Q15 vector by a scalar
+ *
+ * $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 BasicScale
+ @{
+ */
+
+/**
+ @brief Multiplies a Q15 vector by a scalar.
+ @param[in] pSrc points to the input vector
+ @param[in] scaleFract fractional portion of the scale value
+ @param[in] shift number of bits to shift the result by
+ @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 input data <code>*pSrc</code> and <code>scaleFract</code> are in 1.15 format.
+ These are multiplied to yield a 2.30 intermediate result and this is shifted with saturation to 1.15 format.
+ */
+
+void arm_scale_q15(
+ const q15_t *pSrc,
+ q15_t scaleFract,
+ int8_t shift,
+ q15_t *pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ int8_t kShift = 15 - shift; /* Shift to apply after scaling */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+#if defined (ARM_MATH_DSP)
+ q31_t inA1, inA2;
+ q31_t out1, out2, out3, out4; /* Temporary output variables */
+ q15_t in1, in2, in3, in4; /* Temporary input variables */
+#endif
+#endif
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+#if defined (ARM_MATH_DSP)
+ /* read 2 times 2 samples at a time from source */
+ inA1 = read_q15x2_ia ((q15_t **) &pSrc);
+ inA2 = read_q15x2_ia ((q15_t **) &pSrc);
+
+ /* Scale inputs and store result in temporary variables
+ * in single cycle by packing the outputs */
+ out1 = (q31_t) ((q15_t) (inA1 >> 16) * scaleFract);
+ out2 = (q31_t) ((q15_t) (inA1 ) * scaleFract);
+ out3 = (q31_t) ((q15_t) (inA2 >> 16) * scaleFract);
+ out4 = (q31_t) ((q15_t) (inA2 ) * scaleFract);
+
+ /* apply shifting */
+ out1 = out1 >> kShift;
+ out2 = out2 >> kShift;
+ out3 = out3 >> kShift;
+ out4 = out4 >> kShift;
+
+ /* saturate the output */
+ in1 = (q15_t) (__SSAT(out1, 16));
+ in2 = (q15_t) (__SSAT(out2, 16));
+ in3 = (q15_t) (__SSAT(out3, 16));
+ in4 = (q15_t) (__SSAT(out4, 16));
+
+ /* store result to destination */
+ write_q15x2_ia (&pDst, __PKHBT(in2, in1, 16));
+ write_q15x2_ia (&pDst, __PKHBT(in4, in3, 16));
+#else
+ *pDst++ = (q15_t) (__SSAT(((q31_t) *pSrc++ * scaleFract) >> kShift, 16));
+ *pDst++ = (q15_t) (__SSAT(((q31_t) *pSrc++ * scaleFract) >> kShift, 16));
+ *pDst++ = (q15_t) (__SSAT(((q31_t) *pSrc++ * scaleFract) >> kShift, 16));
+ *pDst++ = (q15_t) (__SSAT(((q31_t) *pSrc++ * scaleFract) >> kShift, 16));
+#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 * scale */
+
+ /* Scale input and store result in destination buffer. */
+ *pDst++ = (q15_t) (__SSAT(((q31_t) *pSrc++ * scaleFract) >> kShift, 16));
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicScale group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q31.c new file mode 100644 index 0000000..52821ed --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q31.c @@ -0,0 +1,191 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_scale_q31.c
+ * Description: Multiplies a Q31 vector by a scalar
+ *
+ * $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 BasicScale
+ @{
+ */
+
+/**
+ @brief Multiplies a Q31 vector by a scalar.
+ @param[in] pSrc points to the input vector
+ @param[in] scaleFract fractional portion of the scale value
+ @param[in] shift number of bits to shift the result by
+ @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 input data <code>*pSrc</code> and <code>scaleFract</code> are in 1.31 format.
+ These are multiplied to yield a 2.62 intermediate result and this is shifted with saturation to 1.31 format.
+ */
+
+void arm_scale_q31(
+ const q31_t *pSrc,
+ q31_t scaleFract,
+ int8_t shift,
+ q31_t *pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ q31_t in, out; /* Temporary variables */
+ int8_t kShift = shift + 1; /* Shift to apply after scaling */
+ int8_t sign = (kShift & 0x80);
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale input and store result in destination buffer. */
+ in = *pSrc++; /* read input from source */
+ in = ((q63_t) in * scaleFract) >> 32; /* multiply input with scaler value */
+ out = in << kShift; /* apply shifting */
+ if (in != (out >> kShift)) /* saturate the result */
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out; /* Store result destination */
+
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in << kShift;
+ if (in != (out >> kShift))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in << kShift;
+ if (in != (out >> kShift))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in << kShift;
+ if (in != (out >> kShift))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale input and store result in destination buffer. */
+ in = *pSrc++; /* read four inputs from source */
+ in = ((q63_t) in * scaleFract) >> 32; /* multiply input with scaler value */
+ out = in >> -kShift; /* apply shifting */
+ *pDst++ = out; /* Store result destination */
+
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in >> -kShift;
+ *pDst++ = out;
+
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in >> -kShift;
+ *pDst++ = out;
+
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in >> -kShift;
+ *pDst++ = out;
+
+ /* 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) */
+
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale input and store result in destination buffer. */
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in << kShift;
+ if (in != (out >> kShift))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A * scale */
+
+ /* Scale input and store result in destination buffer. */
+ in = *pSrc++;
+ in = ((q63_t) in * scaleFract) >> 32;
+ out = in >> -kShift;
+ *pDst++ = out;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+
+}
+
+/**
+ @} end of BasicScale group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q7.c new file mode 100644 index 0000000..9da6af3 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q7.c @@ -0,0 +1,129 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_scale_q7.c
+ * Description: Multiplies a Q7 vector by a scalar
+ *
+ * $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 BasicScale
+ @{
+ */
+
+/**
+ @brief Multiplies a Q7 vector by a scalar.
+ @param[in] pSrc points to the input vector
+ @param[in] scaleFract fractional portion of the scale value
+ @param[in] shift number of bits to shift the result by
+ @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 input data <code>*pSrc</code> and <code>scaleFract</code> are in 1.7 format.
+ These are multiplied to yield a 2.14 intermediate result and this is shifted with saturation to 1.7 format.
+ */
+
+void arm_scale_q7(
+ const q7_t * pSrc,
+ q7_t scaleFract,
+ int8_t shift,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ int8_t kShift = 7 - shift; /* Shift to apply after scaling */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q7_t in1, in2, in3, in4; /* Temporary input variables */
+ 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 * scale */
+
+#if defined (ARM_MATH_DSP)
+ /* Reading 4 inputs from memory */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+ in3 = *pSrc++;
+ in4 = *pSrc++;
+
+ /* Scale inputs and store result in the temporary variable. */
+ out1 = (q7_t) (__SSAT(((in1) * scaleFract) >> kShift, 8));
+ out2 = (q7_t) (__SSAT(((in2) * scaleFract) >> kShift, 8));
+ out3 = (q7_t) (__SSAT(((in3) * scaleFract) >> kShift, 8));
+ out4 = (q7_t) (__SSAT(((in4) * scaleFract) >> kShift, 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) *pSrc++ * scaleFract) >> kShift), 8));
+ *pDst++ = (q7_t) (__SSAT((((q15_t) *pSrc++ * scaleFract) >> kShift), 8));
+ *pDst++ = (q7_t) (__SSAT((((q15_t) *pSrc++ * scaleFract) >> kShift), 8));
+ *pDst++ = (q7_t) (__SSAT((((q15_t) *pSrc++ * scaleFract) >> kShift), 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 * scale */
+
+ /* Scale input and store result in destination buffer. */
+ *pDst++ = (q7_t) (__SSAT((((q15_t) *pSrc++ * scaleFract) >> kShift), 8));
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicScale group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c new file mode 100644 index 0000000..360be97 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c @@ -0,0 +1,201 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_shift_q15.c
+ * Description: Shifts the elements of a Q15 vector by a specified number of bits
+ *
+ * $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 BasicShift
+ @{
+ */
+
+/**
+ @brief Shifts the elements of a Q15 vector a specified number of bits
+ @param[in] pSrc points to the input vector
+ @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
+ @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 Q15 range [0x8000 0x7FFF] are saturated.
+ */
+
+void arm_shift_q15(
+ const q15_t * pSrc,
+ int8_t shiftBits,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ uint8_t sign = (shiftBits & 0x80); /* Sign of shiftBits */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q15_t in1, in2; /* Temporary input variables */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+
+#if defined (ARM_MATH_DSP)
+ /* read 2 samples from source */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+ /* Shift the inputs and then store the results in the destination buffer. */
+#ifndef ARM_MATH_BIG_ENDIAN
+ write_q15x2_ia (&pDst, __PKHBT(__SSAT((in1 << shiftBits), 16),
+ __SSAT((in2 << shiftBits), 16), 16));
+#else
+ write_q15x2_ia (&pDst, __PKHBT(__SSAT((in2 << shiftBits), 16),
+ __SSAT((in1 << shiftBits), 16), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* read 2 samples from source */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+#ifndef ARM_MATH_BIG_ENDIAN
+ write_q15x2_ia (&pDst, __PKHBT(__SSAT((in1 << shiftBits), 16),
+ __SSAT((in2 << shiftBits), 16), 16));
+#else
+ write_q15x2_ia (&pDst, __PKHBT(__SSAT((in2 << shiftBits), 16),
+ __SSAT((in1 << shiftBits), 16), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+#else
+ *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+ *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+ *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+ *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+
+#if defined (ARM_MATH_DSP)
+ /* read 2 samples from source */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+ /* Shift the inputs and then store the results in the destination buffer. */
+#ifndef ARM_MATH_BIG_ENDIAN
+ write_q15x2_ia (&pDst, __PKHBT((in1 >> -shiftBits),
+ (in2 >> -shiftBits), 16));
+#else
+ write_q15x2_ia (&pDst, __PKHBT((in2 >> -shiftBits),
+ (in1 >> -shiftBits), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* read 2 samples from source */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+#ifndef ARM_MATH_BIG_ENDIAN
+ write_q15x2_ia (&pDst, __PKHBT((in1 >> -shiftBits),
+ (in2 >> -shiftBits), 16));
+#else
+ write_q15x2_ia (&pDst, __PKHBT((in2 >> -shiftBits),
+ (in1 >> -shiftBits), 16));
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+#else
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+#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) */
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ *pDst++ = __SSAT(((q31_t) *pSrc++ << shiftBits), 16);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ *pDst++ = (*pSrc++ >> -shiftBits);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+
+}
+
+/**
+ @} end of BasicShift group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q31.c new file mode 100644 index 0000000..5550426 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q31.c @@ -0,0 +1,181 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_shift_q31.c
+ * Description: Shifts the elements of a Q31 vector by a specified number of bits
+ *
+ * $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
+ */
+/**
+ @defgroup BasicShift Vector Shift
+
+ Shifts the elements of a fixed-point vector by a specified number of bits.
+ There are separate functions for Q7, Q15, and Q31 data types.
+ The underlying algorithm used is:
+
+ <pre>
+ pDst[n] = pSrc[n] << shift, 0 <= n < blockSize.
+ </pre>
+
+ If <code>shift</code> is positive then the elements of the vector are shifted to the left.
+ If <code>shift</code> is negative then the elements of the vector are shifted to the right.
+
+ The functions support in-place computation allowing the source and destination
+ pointers to reference the same memory buffer.
+ */
+
+/**
+ @addtogroup BasicShift
+ @{
+ */
+
+/**
+ @brief Shifts the elements of a Q31 vector a specified number of bits.
+ @param[in] pSrc points to the input vector
+ @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in the vector
+ @return none
+
+ @par Scaling and Overflow Behavior
+ The function uses saturating arithmetic.
+ Results outside of the allowable Q31 range [0x80000000 0x7FFFFFFF] are saturated.
+ */
+
+void arm_shift_q31(
+ const q31_t * pSrc,
+ int8_t shiftBits,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ uint8_t sign = (shiftBits & 0x80); /* Sign of shiftBits */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ q31_t in, out; /* Temporary variables */
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ in = *pSrc++;
+ out = in << shiftBits;
+ if (in != (out >> shiftBits))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ in = *pSrc++;
+ out = in << shiftBits;
+ if (in != (out >> shiftBits))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ in = *pSrc++;
+ out = in << shiftBits;
+ if (in != (out >> shiftBits))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ in = *pSrc++;
+ out = in << shiftBits;
+ if (in != (out >> shiftBits))
+ out = 0x7FFFFFFF ^ (in >> 31);
+ *pDst++ = out;
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+
+ /* Shift input and store results in destination buffer. */
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+
+ /* 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) */
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ *pDst++ = clip_q63_to_q31((q63_t) *pSrc++ << shiftBits);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ *pDst++ = (*pSrc++ >> -shiftBits);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+
+}
+
+/**
+ @} end of BasicShift group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q7.c new file mode 100644 index 0000000..832e40a --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q7.c @@ -0,0 +1,175 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_shift_q7.c
+ * Description: Processing function for the Q7 Shifting
+ *
+ * $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 BasicShift
+ @{
+ */
+
+/**
+ @brief Shifts the elements of a Q7 vector a specified number of bits
+ @param[in] pSrc points to the input vector
+ @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
+ @param[out] pDst points to the output vector
+ @param[in] blockSize number of samples in each vector
+ @return none
+
+ @par onditions for optimum performance
+ Input and output buffers should be aligned by 32-bit
+ @par Scaling and Overflow Behavior
+ The function uses saturating arithmetic.
+ Results outside of the allowable Q7 range [0x80 0x7F] are saturated.
+ */
+
+void arm_shift_q7(
+ const q7_t * pSrc,
+ int8_t shiftBits,
+ q7_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+ uint8_t sign = (shiftBits & 0x80); /* Sign of shiftBits */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q7_t in1, in2, in3, in4; /* Temporary input variables */
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+
+#if defined (ARM_MATH_DSP)
+ /* Read 4 inputs */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+ in3 = *pSrc++;
+ in4 = *pSrc++;
+
+ /* Pack and store result in destination buffer (in single write) */
+ write_q7x4_ia (&pDst, __PACKq7(__SSAT((in1 << shiftBits), 8),
+ __SSAT((in2 << shiftBits), 8),
+ __SSAT((in3 << shiftBits), 8),
+ __SSAT((in4 << shiftBits), 8) ));
+#else
+ *pDst++ = (q7_t) __SSAT(((q15_t) *pSrc++ << shiftBits), 8);
+ *pDst++ = (q7_t) __SSAT(((q15_t) *pSrc++ << shiftBits), 8);
+ *pDst++ = (q7_t) __SSAT(((q15_t) *pSrc++ << shiftBits), 8);
+ *pDst++ = (q7_t) __SSAT(((q15_t) *pSrc++ << shiftBits), 8);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+
+#if defined (ARM_MATH_DSP)
+ /* Read 4 inputs */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+ in3 = *pSrc++;
+ in4 = *pSrc++;
+
+ /* Pack and store result in destination buffer (in single write) */
+ write_q7x4_ia (&pDst, __PACKq7((in1 >> -shiftBits),
+ (in2 >> -shiftBits),
+ (in3 >> -shiftBits),
+ (in4 >> -shiftBits) ));
+#else
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+ *pDst++ = (*pSrc++ >> -shiftBits);
+#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) */
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ *pDst++ = (q7_t) __SSAT(((q15_t) *pSrc++ << shiftBits), 8);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+
+ /* Shift input and store result in destination buffer. */
+ *pDst++ = (*pSrc++ >> -shiftBits);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+ }
+
+}
+
+/**
+ @} end of BasicShift group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_f32.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_f32.c new file mode 100644 index 0000000..67556e4 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_f32.c @@ -0,0 +1,148 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_sub_f32.c
+ * Description: Floating-point vector subtraction
+ *
+ * $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
+ */
+
+/**
+ @defgroup BasicSub Vector Subtraction
+
+ Element-by-element subtraction 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 BasicSub
+ @{
+ */
+
+/**
+ @brief Floating-point vector subtraction.
+ @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_sub_f32(
+ const float32_t * pSrcA,
+ const float32_t * pSrcB,
+ float32_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined(ARM_MATH_NEON)
+ float32x4_t vec1;
+ float32x4_t vec2;
+ float32x4_t res;
+
+ /* Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A - B */
+
+ /* Subtract and then store the results in the destination buffer. */
+ vec1 = vld1q_f32(pSrcA);
+ vec2 = vld1q_f32(pSrcB);
+ res = vsubq_f32(vec1, vec2);
+ vst1q_f32(pDst, res);
+
+ /* Increment pointers */
+ pSrcA += 4;
+ pSrcB += 4;
+ pDst += 4;
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* Tail */
+ blkCnt = blockSize & 0x3;
+
+#else
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A - B */
+
+ /* Subtract and store result in destination buffer. */
+ *pDst++ = (*pSrcA++) - (*pSrcB++);
+
+ *pDst++ = (*pSrcA++) - (*pSrcB++);
+
+ *pDst++ = (*pSrcA++) - (*pSrcB++);
+
+ *pDst++ = (*pSrcA++) - (*pSrcB++);
+
+ /* 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) */
+#endif /* #if defined(ARM_MATH_NEON) */
+
+ while (blkCnt > 0U)
+ {
+ /* C = A - B */
+
+ /* Subtract and store result in destination buffer. */
+ *pDst++ = (*pSrcA++) - (*pSrcB++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicSub group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q15.c new file mode 100644 index 0000000..07420c2 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q15.c @@ -0,0 +1,126 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_sub_q15.c
+ * Description: Q15 vector subtraction
+ *
+ * $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 BasicSub
+ @{
+ */
+
+/**
+ @brief Q15 vector subtraction.
+ @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 Q15 range [0x8000 0x7FFF] are saturated.
+ */
+
+void arm_sub_q15(
+ const q15_t * pSrcA,
+ const q15_t * pSrcB,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+#if defined (ARM_MATH_DSP)
+ q31_t inA1, inA2;
+ q31_t inB1, inB2;
+#endif
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A - B */
+
+#if defined (ARM_MATH_DSP)
+ /* read 2 times 2 samples at a time from sourceA */
+ inA1 = read_q15x2_ia ((q15_t **) &pSrcA);
+ inA2 = read_q15x2_ia ((q15_t **) &pSrcA);
+ /* read 2 times 2 samples at a time from sourceB */
+ inB1 = read_q15x2_ia ((q15_t **) &pSrcB);
+ inB2 = read_q15x2_ia ((q15_t **) &pSrcB);
+
+ /* Subtract and store 2 times 2 samples at a time */
+ write_q15x2_ia (&pDst, __QSUB16(inA1, inB1));
+ write_q15x2_ia (&pDst, __QSUB16(inA2, inB2));
+#else
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ - *pSrcB++), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ - *pSrcB++), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ - *pSrcB++), 16);
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ - *pSrcB++), 16);
+#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 */
+
+ /* Subtract and store result in destination buffer. */
+#if defined (ARM_MATH_DSP)
+ *pDst++ = (q15_t) __QSUB16(*pSrcA++, *pSrcB++);
+#else
+ *pDst++ = (q15_t) __SSAT(((q31_t) *pSrcA++ - *pSrcB++), 16);
+#endif
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicSub group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q31.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q31.c new file mode 100644 index 0000000..bd94ba5 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q31.c @@ -0,0 +1,108 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_sub_q31.c
+ * Description: Q31 vector subtraction
+ *
+ * $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 BasicSub
+ @{
+ */
+
+/**
+ @brief Q31 vector subtraction.
+ @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 Q31 range [0x80000000 0x7FFFFFFF] are saturated.
+ */
+
+void arm_sub_q31(
+ const q31_t * pSrcA,
+ const q31_t * pSrcB,
+ q31_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* Loop counter */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A - B */
+
+ /* Subtract and store result in destination buffer. */
+ *pDst++ = __QSUB(*pSrcA++, *pSrcB++);
+
+ *pDst++ = __QSUB(*pSrcA++, *pSrcB++);
+
+ *pDst++ = __QSUB(*pSrcA++, *pSrcB++);
+
+ *pDst++ = __QSUB(*pSrcA++, *pSrcB++);
+
+ /* 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 */
+
+ /* Subtract and store result in destination buffer. */
+ *pDst++ = __QSUB(*pSrcA++, *pSrcB++);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicSub group
+ */
diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q7.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q7.c new file mode 100644 index 0000000..ce65350 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_sub_q7.c @@ -0,0 +1,109 @@ +/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_sub_q7.c
+ * Description: Q7 vector subtraction
+ *
+ * $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 BasicSub
+ @{
+ */
+
+/**
+ @brief Q7 vector subtraction.
+ @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] will be saturated.
+ */
+
+void arm_sub_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)
+
+ /* Loop unrolling: Compute 4 outputs at a time */
+ blkCnt = blockSize >> 2U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A - B */
+
+#if defined (ARM_MATH_DSP)
+ /* Subtract and store result in destination buffer (4 samples at a time). */
+ write_q7x4_ia (&pDst, __QSUB8(read_q7x4_ia ((q7_t **) &pSrcA), read_q7x4_ia ((q7_t **) &pSrcB)));
+#else
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrcA++ - *pSrcB++, 8);
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrcA++ - *pSrcB++, 8);
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrcA++ - *pSrcB++, 8);
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrcA++ - *pSrcB++, 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 */
+
+ /* Subtract and store result in destination buffer. */
+ *pDst++ = (q7_t) __SSAT((q15_t) *pSrcA++ - *pSrcB++, 8);
+
+ /* Decrement loop counter */
+ blkCnt--;
+ }
+
+}
+
+/**
+ @} end of BasicSub group
+ */
|