From aa38e5c1f48e31213ee349aa5cd6f06c85bda70d Mon Sep 17 00:00:00 2001
From: android <android@lingyun.com>
Date: Tue, 25 Jun 2024 21:49:39 +0800
Subject: [PATCH] Add GD32F103RCT6 ADC converter board SDK source code
---
mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c | 236 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 236 insertions(+), 0 deletions(-)
diff --git a/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c b/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
new file mode 100644
index 0000000..9462ad7
--- /dev/null
+++ b/mcu_sdk/gd32f103/rk_eFire/Board/CMSIS/DSP/Source/BasicMathFunctions/arm_shift_q15.c
@@ -0,0 +1,236 @@
+/* ----------------------------------------------------------------------
+ * Project: CMSIS DSP Library
+ * Title: arm_shift_q15.c
+ * Description: Shifts the elements of a Q15 vector by a specified number of bits
+ *
+ * $Date: 27. January 2017
+ * $Revision: V.1.5.1
+ *
+ * Target Processor: Cortex-M cores
+ * -------------------------------------------------------------------- */
+/*
+ * Copyright (C) 2010-2017 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 shift
+ * @{
+ */
+
+/**
+ * @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 the vector
+ * @return none.
+ *
+ * <b>Scaling and Overflow Behavior:</b>
+ * \par
+ * The function uses saturating arithmetic.
+ * Results outside of the allowable Q15 range [0x8000 0x7FFF] will be saturated.
+ */
+
+void arm_shift_q15(
+ q15_t * pSrc,
+ int8_t shiftBits,
+ q15_t * pDst,
+ uint32_t blockSize)
+{
+ uint32_t blkCnt; /* loop counter */
+ uint8_t sign; /* Sign of shiftBits */
+
+#if defined (ARM_MATH_DSP)
+
+/* Run the below code for Cortex-M4 and Cortex-M3 */
+
+ q15_t in1, in2; /* Temporary variables */
+
+
+ /*loop Unrolling */
+ blkCnt = blockSize >> 2U;
+
+ /* Getting the sign of shiftBits */
+ sign = (shiftBits & 0x80);
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ /* First part of the processing with loop unrolling. Compute 4 outputs at a time.
+ ** a second loop below computes the remaining 1 to 3 samples. */
+ while (blkCnt > 0U)
+ {
+ /* Read 2 inputs */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+ /* C = A << shiftBits */
+ /* Shift the inputs and then store the results in the destination buffer. */
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *__SIMD32(pDst)++ = __PKHBT(__SSAT((in1 << shiftBits), 16),
+ __SSAT((in2 << shiftBits), 16), 16);
+
+#else
+
+ *__SIMD32(pDst)++ = __PKHBT(__SSAT((in2 << shiftBits), 16),
+ __SSAT((in1 << shiftBits), 16), 16);
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *__SIMD32(pDst)++ = __PKHBT(__SSAT((in1 << shiftBits), 16),
+ __SSAT((in2 << shiftBits), 16), 16);
+
+#else
+
+ *__SIMD32(pDst)++ = __PKHBT(__SSAT((in2 << shiftBits), 16),
+ __SSAT((in1 << shiftBits), 16), 16);
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* If the blockSize is not a multiple of 4, compute any remaining output samples here.
+ ** No loop unrolling is used. */
+ blkCnt = blockSize % 0x4U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+ /* Shift and then store the results in the destination buffer. */
+ *pDst++ = __SSAT((*pSrc++ << shiftBits), 16);
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ /* First part of the processing with loop unrolling. Compute 4 outputs at a time.
+ ** a second loop below computes the remaining 1 to 3 samples. */
+ while (blkCnt > 0U)
+ {
+ /* Read 2 inputs */
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+ /* C = A >> shiftBits */
+ /* Shift the inputs and then store the results in the destination buffer. */
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *__SIMD32(pDst)++ = __PKHBT((in1 >> -shiftBits),
+ (in2 >> -shiftBits), 16);
+
+#else
+
+ *__SIMD32(pDst)++ = __PKHBT((in2 >> -shiftBits),
+ (in1 >> -shiftBits), 16);
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ in1 = *pSrc++;
+ in2 = *pSrc++;
+
+#ifndef ARM_MATH_BIG_ENDIAN
+
+ *__SIMD32(pDst)++ = __PKHBT((in1 >> -shiftBits),
+ (in2 >> -shiftBits), 16);
+
+#else
+
+ *__SIMD32(pDst)++ = __PKHBT((in2 >> -shiftBits),
+ (in1 >> -shiftBits), 16);
+
+#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+
+ /* If the blockSize is not a multiple of 4, compute any remaining output samples here.
+ ** No loop unrolling is used. */
+ blkCnt = blockSize % 0x4U;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+ /* Shift the inputs and then store the results in the destination buffer. */
+ *pDst++ = (*pSrc++ >> -shiftBits);
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+ }
+
+#else
+
+ /* Run the below code for Cortex-M0 */
+
+ /* Getting the sign of shiftBits */
+ sign = (shiftBits & 0x80);
+
+ /* If the shift value is positive then do right shift else left shift */
+ if (sign == 0U)
+ {
+ /* Initialize blkCnt with number of samples */
+ blkCnt = blockSize;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A << shiftBits */
+ /* Shift and then store the results in the destination buffer. */
+ *pDst++ = __SSAT(((q31_t) * pSrc++ << shiftBits), 16);
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+ }
+ else
+ {
+ /* Initialize blkCnt with number of samples */
+ blkCnt = blockSize;
+
+ while (blkCnt > 0U)
+ {
+ /* C = A >> shiftBits */
+ /* Shift the inputs and then store the results in the destination buffer. */
+ *pDst++ = (*pSrc++ >> -shiftBits);
+
+ /* Decrement the loop counter */
+ blkCnt--;
+ }
+ }
+
+#endif /* #if defined (ARM_MATH_DSP) */
+
+}
+
+/**
+ * @} end of shift group
+ */
--
Gitblit v1.9.1