1 files changed, 174 insertions, 0 deletions
diff --git a/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_real_f16.c b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_real_f16.c
new file mode 100755
index 0000000..8b0a495
--- /dev/null
+++ b/Middlewares/Third_Party/ARM/ARM.CMSIS-DSP.1.17.1/Source/ComplexMathFunctions/arm_cmplx_mult_real_f16.c
@@ -0,0 +1,174 @@
+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_cmplx_mult_real_f16.c
+ * Description:  Floating-point complex by real multiplication
+ *
+ * $Date:        23 April 2021
+ * $Revision:    V1.9.0
+ *
+ * Target Processor: Cortex-M and Cortex-A cores
+ * -------------------------------------------------------------------- */
+
+/*
+ * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "arm_compiler_specific.h"
+
+
+#include "dsp/complex_math_functions_f16.h"
+
+#if defined(ARM_FLOAT16_SUPPORTED)
+
+/**
+  @ingroup groupCmplxMath
+ */
+
+
+/**
+  @addtogroup CmplxByRealMult
+  @{
+ */
+
+/**
+  @brief         Floating-point complex-by-real multiplication.
+  @param[in]     pSrcCmplx   points to complex input vector
+  @param[in]     pSrcReal    points to real input vector
+  @param[out]    pCmplxDst   points to complex output vector
+  @param[in]     numSamples  number of samples in each vector
+ */
+
+#if defined(ARM_MATH_MVE_FLOAT16) && !defined(ARM_MATH_AUTOVECTORIZE)
+
+ARM_DSP_ATTRIBUTE void arm_cmplx_mult_real_f16(
+  const float16_t * pSrcCmplx,
+  const float16_t * pSrcReal,
+        float16_t * pCmplxDst,
+        uint32_t numSamples)
+{
+    static const uint16_t stride_cmplx_x_real_16[8] = {
+        0, 0, 1, 1, 2, 2, 3, 3
+        };
+    uint32_t blockSizeC = numSamples * CMPLX_DIM;   /* loop counters */
+    uint32_t blkCnt;
+    f16x8_t rVec;
+    f16x8_t cmplxVec;
+    f16x8_t dstVec;
+    uint16x8_t strideVec;
+
+
+    /* stride vector for pairs of real generation */
+    strideVec = vld1q(stride_cmplx_x_real_16);
+
+    /* Compute 4 complex outputs at a time */
+    blkCnt = blockSizeC >> 3;
+    while (blkCnt > 0U) 
+    {
+        cmplxVec = vld1q(pSrcCmplx);
+        rVec = vldrhq_gather_shifted_offset_f16(pSrcReal, strideVec);
+        dstVec = vmulq(cmplxVec, rVec);
+        vst1q(pCmplxDst, dstVec);
+
+        pSrcReal += 4;
+        pSrcCmplx += 8;
+        pCmplxDst += 8;
+        blkCnt--;
+    }
+
+    blkCnt = blockSizeC & 7;
+    if (blkCnt > 0U) {
+        mve_pred16_t p0 = vctp16q(blkCnt);
+
+        cmplxVec = vld1q(pSrcCmplx);
+        rVec = vldrhq_gather_shifted_offset_f16(pSrcReal, strideVec);
+        dstVec = vmulq(cmplxVec, rVec);
+        vstrhq_p_f16(pCmplxDst, dstVec, p0);
+    }
+}
+
+#else
+ARM_DSP_ATTRIBUTE void arm_cmplx_mult_real_f16(
+  const float16_t * pSrcCmplx,
+  const float16_t * pSrcReal,
+        float16_t * pCmplxDst,
+        uint32_t numSamples)
+{
+        uint32_t blkCnt;                               /* Loop counter */
+        float16_t in;                                  /* Temporary variable */
+
+#if defined (ARM_MATH_LOOPUNROLL) && !defined(ARM_MATH_AUTOVECTORIZE)
+
+  /* Loop unrolling: Compute 4 outputs at a time */
+  blkCnt = numSamples >> 2U;
+
+  while (blkCnt > 0U)
+  {
+    /* C[2 * i    ] = A[2 * i    ] * B[i]. */
+    /* C[2 * i + 1] = A[2 * i + 1] * B[i]. */
+
+    in = *pSrcReal++;
+    /* store result in destination buffer. */
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+
+    in = *pSrcReal++;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+
+    in = *pSrcReal++;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+
+    in = *pSrcReal++;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+
+    /* Decrement loop counter */
+    blkCnt--;
+  }
+
+  /* Loop unrolling: Compute remaining outputs */
+  blkCnt = numSamples % 0x4U;
+
+#else
+
+  /* Initialize blkCnt with number of samples */
+  blkCnt = numSamples;
+
+#endif /* #if defined (ARM_MATH_LOOPUNROLL) */
+
+  while (blkCnt > 0U)
+  {
+    /* C[2 * i    ] = A[2 * i    ] * B[i]. */
+    /* C[2 * i + 1] = A[2 * i + 1] * B[i]. */
+
+    in = *pSrcReal++;
+    /* store result in destination buffer. */
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+    *pCmplxDst++ = (_Float16)*pSrcCmplx++ * (_Float16)in;
+
+    /* Decrement loop counter */
+    blkCnt--;
+  }
+
+}
+#endif /* defined(ARM_MATH_MVEF) && !defined(ARM_MATH_AUTOVECTORIZE) */
+
+/**
+  @} end of CmplxByRealMult group
+ */
+
+#endif /* #if defined(ARM_FLOAT16_SUPPORTED) */