新增所有文件

2025-10-25 21:11:06 +08:00
parent 8cc4755d15
commit 3134504178
8414 changed files with 2995287 additions and 5 deletions
--- a/CMSIS/DSP/Source/SupportFunctions/arm_float_to_f16.c
+++ b/CMSIS/DSP/Source/SupportFunctions/arm_float_to_f16.c
@@ -0,0 +1,131 @@
+/* ----------------------------------------------------------------------
+ * Project:      CMSIS DSP Library
+ * Title:        arm_float_to_q15.c
+ * Description:  Converts the elements of the floating-point vector to Q15 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_f16.h"
+
+#if defined(ARM_FLOAT16_SUPPORTED)
+
+
+/**
+  @ingroup groupSupport
+ */
+
+/**
+  @addtogroup float_to_x
+  @{
+ */
+
+/**
+  @brief         Converts the elements of the floating-point vector to f16 vector.
+  @param[in]     pSrc       points to the f32 input vector
+  @param[out]    pDst       points to the f16 output vector
+  @param[in]     blockSize  number of samples in each vector
+  @return        none
+
+ */
+
+#if defined(ARM_MATH_MVE_FLOAT16) && !defined(ARM_MATH_AUTOVECTORIZE) && defined(__CMSIS_GCC_H)
+#pragma GCC warning "Scalar version of arm_float_to_f16 built. Helium version has build issues with gcc."
+#endif 
+
+#if defined(ARM_MATH_MVE_FLOAT16) && !defined(ARM_MATH_AUTOVECTORIZE) &&  !defined(__CMSIS_GCC_H)
+
+void arm_float_to_f16(
+  const float32_t * pSrc,
+        float16_t * pDst,
+        uint32_t blockSize)
+{
+    int32_t  blkCnt;           /* loop counters */
+    float32x4x2_t tmp;
+    float16x8_t vecDst;
+    float32_t const *pSrcVec;
+
+
+    pSrcVec = (float32_t const *) pSrc;
+    blkCnt = blockSize >> 3;
+    while (blkCnt > 0)
+    {
+        /* convert from float32 to float16 and then store the results in the destination buffer */
+        tmp = vld2q(pSrcVec);   pSrcVec += 8;
+        /* narrow / merge */
+        vecDst = vcvtbq_f16_f32(vecDst, tmp.val[0]);
+        vecDst = vcvttq_f16_f32(vecDst, tmp.val[1]);
+        vst1q(pDst, vecDst);    pDst += 8;
+        /*
+         * Decrement the blockSize loop counter
+         */
+        blkCnt--;
+    }
+
+    /*
+     * tail
+     */
+    blkCnt = blockSize & 7;
+    if (blkCnt > 0)
+    {
+        mve_pred16_t p0 = vctp16q(blkCnt);
+        tmp = vld2q(pSrcVec);
+        vecDst = vcvtbq_f16_f32(vecDst, tmp.val[0]);
+        vecDst = vcvttq_f16_f32(vecDst, tmp.val[1]);
+        vstrhq_p(pDst, vecDst, p0);
+    }
+}
+
+#else
+
+void arm_float_to_f16(
+  const float32_t * pSrc,
+        float16_t * pDst,
+        uint32_t blockSize)
+{
+    const float32_t *pIn = pSrc;      /* Src pointer */
+    uint32_t  blkCnt;           /* loop counter */
+
+    /*
+     * Loop over blockSize number of values
+     */
+    blkCnt = blockSize;
+
+    while (blkCnt > 0U)
+    {
+
+        *pDst++ = (float16_t) * pIn++;
+        /*
+         * Decrement the loop counter
+         */
+        blkCnt--;
+    }
+}
+#endif /* defined(ARM_MATH_MVEF) && !defined(ARM_MATH_AUTOVECTORIZE) */
+
+/**
+  @} end of float_to_x group
+ */
+
+#endif /* #if defined(ARM_FLOAT16_SUPPORTED) */ 
+