增加所有文件

2025-11-07 20:19:23 +08:00
parent b7376523b6
commit 846bd3bbda
8445 changed files with 3006231 additions and 5934 deletions
--- a/CMSIS/DSP/Source/SupportFunctions/arm_q7_to_q31.c
+++ b/CMSIS/DSP/Source/SupportFunctions/arm_q7_to_q31.c
@@ -0,0 +1,164 @@
+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_q7_to_q31.c
+ * Description:  Converts the elements of the Q7 vector to Q31 vector
+ *
+ * $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/support_functions.h"
+
+/**
+  @ingroup groupSupport
+ */
+
+/**
+  @addtogroup q7_to_x
+  @{
+ */
+
+/**
+  @brief         Converts the elements of the Q7 vector to Q31 vector.
+  @param[in]     pSrc       points to the Q7 input vector
+  @param[out]    pDst       points to the Q31 output vector
+  @param[in]     blockSize  number of samples in each vector
+  @return        none
+
+  @par           Details
+                   The equation used for the conversion process is:
+  <pre>
+      pDst[n] = (q31_t) pSrc[n] << 24;   0 <= n < blockSize.
+  </pre>
+ */
+#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE)
+void arm_q7_to_q31(
+  const q7_t * pSrc,
+        q31_t * pDst,
+        uint32_t blockSize)
+{
+    uint32_t blkCnt;   
+    q31x4_t         vecDst;
+
+    blkCnt = blockSize >> 2;
+    while (blkCnt > 0U)
+    {
+
+        /* C = (q31_t)A << 16 */
+        /* convert from q15 to q31 and then store the results in the destination buffer */
+        /* load q15 + 32-bit widening */
+        vecDst = vldrbq_s32((q7_t const *) pSrc);
+        vecDst = vshlq_n(vecDst, 24);
+        vstrwq_s32(pDst, vecDst);
+
+        /*
+         * Decrement the blockSize loop counter
+         * Advance vector source and destination pointers
+         */
+        pDst += 4;
+        pSrc += 4;
+        blkCnt --;
+     }
+
+  blkCnt = blockSize & 3;
+  while (blkCnt > 0U)
+  {
+    /* C = (q31_t) A << 24 */
+
+    /* Convert from q7 to q31 and store result in destination buffer */
+    *pDst++ = (q31_t) *pSrc++ << 24;
+
+    /* Decrement loop counter */
+    blkCnt--;
+  }
+}
+
+#else
+void arm_q7_to_q31(
+  const q7_t * pSrc,
+        q31_t * pDst,
+        uint32_t blockSize)
+{
+        uint32_t blkCnt;                               /* Loop counter */
+  const q7_t *pIn = pSrc;                              /* Source pointer */
+
+#if defined (ARM_MATH_LOOPUNROLL)
+
+        q31_t in;
+
+  /* Loop unrolling: Compute 4 outputs at a time */
+  blkCnt = blockSize >> 2U;
+
+  while (blkCnt > 0U)
+  {
+    /* C = (q31_t) A << 24 */
+
+    /* Convert from q7 to q31 and store result in destination buffer */
+    in = read_q7x4_ia (&pIn);
+
+#ifndef ARM_MATH_BIG_ENDIAN
+
+    *pDst++ = (__ROR(in, 8)) & 0xFF000000;
+    *pDst++ = (__ROR(in, 16)) & 0xFF000000;
+    *pDst++ = (__ROR(in, 24)) & 0xFF000000;
+    *pDst++ = (in & 0xFF000000);
+
+#else
+
+    *pDst++ = (in & 0xFF000000);
+    *pDst++ = (__ROR(in, 24)) & 0xFF000000;
+    *pDst++ = (__ROR(in, 16)) & 0xFF000000;
+    *pDst++ = (__ROR(in, 8)) & 0xFF000000;
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+    /* 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 = (q31_t) A << 24 */
+
+    /* Convert from q7 to q31 and store result in destination buffer */
+    *pDst++ = (q31_t) * pIn++ << 24;
+
+    /* Decrement loop counter */
+    blkCnt--;
+  }
+
+}
+#endif /* defined(ARM_MATH_MVEI) */
+
+/**
+  @} end of q7_to_x group
+ */