add l476 implementationl476

1 files changed, 201 insertions, 251 deletions

diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
index 2de3b2b..360be97 100644
--- a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
+++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
@@ -1,251 +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:        23 April 2021
- * $Revision:    V1.9.0
- *
- * Target Processor: Cortex-M and Cortex-A cores
- * -------------------------------------------------------------------- */
-/*
- * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an AS IS BASIS, WITHOUT
- * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "dsp/basic_math_functions.h"
-
-/**
-  @ingroup groupMath
- */
-
-/**
-  @addtogroup 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.
- */
-
-#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
-
-#include "arm_helium_utils.h"
-
-void arm_shift_q15(
-    const q15_t * pSrc,
-    int8_t shiftBits,
-    q15_t * pDst,
-    uint32_t blockSize)
-{
-    uint32_t  blkCnt;           /* loop counters */
-    q15x8_t vecSrc;
-    q15x8_t vecDst;
-
-    /* Compute 8 outputs at a time */
-    blkCnt = blockSize >> 3;
-    while (blkCnt > 0U)
-    {
-        /*
-         * C = A (>> or <<) shiftBits
-         * Shift the input and then store the result in the destination buffer.
-         */
-        vecSrc = vld1q(pSrc);
-        vecDst = vqshlq_r(vecSrc, shiftBits);
-        vst1q(pDst, vecDst);
-        /*
-         * Decrement the blockSize loop counter
-         */
-        blkCnt--;
-        /*
-         * advance vector source and destination pointers
-         */
-        pSrc += 8;
-        pDst += 8;
-    }
-    /*
-     * tail
-     */
-    blkCnt = blockSize & 7;
-    if (blkCnt > 0U)
-    {
-        mve_pred16_t p0 = vctp16q(blkCnt);
-        vecSrc = vld1q(pSrc);
-        vecDst = vqshlq_r(vecSrc, shiftBits);
-        vstrhq_p(pDst, vecDst, p0);
-    }
-}
-
-#else
-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(((q31_t) in1 << shiftBits), 16),
-                                     __SSAT(((q31_t) in2 << shiftBits), 16), 16));
-#else
-      write_q15x2_ia (&pDst, __PKHBT(__SSAT(((q31_t) in2 << shiftBits), 16),
-                                      __SSAT(((q31_t) 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(((q31_t) in1 << shiftBits), 16),
-                                     __SSAT(((q31_t) in2 << shiftBits), 16), 16));
-#else
-      write_q15x2_ia (&pDst, __PKHBT(__SSAT(((q31_t) in2 << shiftBits), 16),
-                                     __SSAT(((q31_t) 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--;
-    }
-  }
-
-}
-#endif /* defined(ARM_MATH_MVEI) */
-
-/**
-  @} end of BasicShift group
- */
+/* ----------------------------------------------------------------------

+ * 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

+ */