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72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/***************************************************************************//**
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* @file
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* @brief Source file for RAIL HAL common functionality
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*******************************************************************************
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* # License
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* <b>Copyright 2020 Silicon Laboratories Inc. www.silabs.com</b>
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*******************************************************************************
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*
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* SPDX-License-Identifier: Zlib
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*
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* The licensor of this software is Silicon Laboratories Inc.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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******************************************************************************/
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#include "hal_common.h"
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#include "rail_types.h"
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#include "em_common.h"
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#include "em_cmu.h"
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void halCommonMemMove(void *dest, const void *src, uint16_t bytes)
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{
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uint8_t *d = (uint8_t *)dest;
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uint8_t *s = (uint8_t *)src;
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if (d > s) {
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d += bytes - 1;
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s += bytes - 1;
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#ifndef _HAL_SMALL_MEMUTILS_
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while (bytes >= 4) {
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bytes -= 4;
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*d-- = *s--;
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*d-- = *s--;
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*d-- = *s--;
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*d-- = *s--;
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}
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#endif // _HAL_SMALL_MEMUTILS_
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for (; bytes; bytes--) {
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*d-- = *s--;
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}
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} else {
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#ifndef _HAL_SMALL_MEMUTILS_
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while (bytes >= 4) {
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bytes -= 4;
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*d++ = *s++;
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*d++ = *s++;
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*d++ = *s++;
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*d++ = *s++;
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}
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#endif // _HAL_SMALL_MEMUTILS_
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for (; bytes; bytes--) {
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*d++ = *s++;
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}
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}
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}
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