112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
/**************************************************************************//**
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* @file hdiv.h
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* @version V3.0
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* $Revision: 1 $
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* $Date: 16/07/07 7:50p $
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* @brief M261 series Hardware Divider(HDIV) driver header file
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*
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* @note
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* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of Nuvoton Technology Corp. nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************/
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#ifndef __HDIV_H__
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#define __HDIV_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup Standard_Driver Standard Driver
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@{
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*/
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/** @addtogroup HDIV_Driver HDIV Driver
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@{
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*/
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/** @addtogroup HDIV_EXPORTED_FUNCTIONS HDIV Exported Functions
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@{
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*/
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/**
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* @brief Division function to calculate (x/y)
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*
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* @param[in] x the dividend of the division
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* @param[in] y the divisor of the division
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*
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* @return The result of (x/y)
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*
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* @details This is a division function to calculate x/y
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*
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*/
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static __INLINE int32_t HDIV_Div(int32_t x, int16_t y)
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{
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uint32_t *p32;
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p32 = (uint32_t *)HDIV_BASE;
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*p32++ = (uint32_t)x;
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*p32++ = (uint32_t)y;
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return (int32_t) * p32;
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}
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/**
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* @brief To calculate the remainder of x/y, i.e., the result of x mod y.
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*
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* @param[in] x the dividend of the division
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* @param[in] y the divisor of the division
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*
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* @return The remainder of (x/y)
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*
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* @details This function is used to calculate the remainder of x/y.
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*/
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static __INLINE int16_t HDIV_Mod(int32_t x, int16_t y)
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{
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uint32_t *p32;
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p32 = (uint32_t *)HDIV_BASE;
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*p32++ = (uint32_t)x;
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*p32++ = (uint32_t)y;
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return (int16_t)p32[1];
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}
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/*@}*/ /* end of group HDIV_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group HDIV_Driver */
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/*@}*/ /* end of group Standard_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif //__HDIV_H__
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/*** (C) COPYRIGHT 2019 Nuvoton Technology Corp. ***/
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