add l476 implementationl476

1 files changed, 144 insertions, 201 deletions

diff --git a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c
index fbad607..fc3f2ee 100644
--- a/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c
+++ b/Drivers/CMSIS/DSP/Source/BasicMathFunctions/arm_scale_q15.c
@@ -1,201 +1,144 @@
-/* ----------------------------------------------------------------------
- * Project:      CMSIS DSP Library
- * Title:        arm_scale_q15.c
- * Description:  Multiplies a Q15 vector by a scalar
- *
- * $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 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.
- */
-
-#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
-
-#include "arm_helium_utils.h"
-
-void arm_scale_q15(
-    const q15_t * pSrc,
-    q15_t   scaleFract,
-    int8_t  shift,
-    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 * scale
-         * Scale the input and then store the result in the destination buffer.
-         */
-        vecSrc = vld1q(pSrc);
-        vecDst = vmulhq(vecSrc, vdupq_n_s16(scaleFract));
-        vecDst = vqshlq_r(vecDst, shift + 1);
-        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 = vmulhq(vecSrc, vdupq_n_s16(scaleFract));
-        vecDst = vqshlq_r(vecDst, shift + 1);
-        vstrhq_p(pDst, vecDst, p0);
-    }
-
-}
-
-
-#else
-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 (&pSrc);
-    inA2 = read_q15x2_ia (&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--;
-  }
-
-}
-#endif /* defined(ARM_MATH_MVEI) */
-
-/**
-  @} end of BasicScale group
- */
+/* ----------------------------------------------------------------------

+ * 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

+ */