82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/*
|
|
* @brief Routines to overload "/" and "%" operator in C using ROM based divider library
|
|
*
|
|
* @note
|
|
* Copyright(C) NXP Semiconductors, 2013
|
|
* All rights reserved.
|
|
*
|
|
* @par
|
|
* Software that is described herein is for illustrative purposes only
|
|
* which provides customers with programming information regarding the
|
|
* LPC products. This software is supplied "AS IS" without any warranties of
|
|
* any kind, and NXP Semiconductors and its licensor disclaim any and
|
|
* all warranties, express or implied, including all implied warranties of
|
|
* merchantability, fitness for a particular purpose and non-infringement of
|
|
* intellectual property rights. NXP Semiconductors assumes no responsibility
|
|
* or liability for the use of the software, conveys no license or rights under any
|
|
* patent, copyright, mask work right, or any other intellectual property rights in
|
|
* or to any products. NXP Semiconductors reserves the right to make changes
|
|
* in the software without notification. NXP Semiconductors also makes no
|
|
* representation or warranty that such application will be suitable for the
|
|
* specified use without further testing or modification.
|
|
*
|
|
* @par
|
|
* Permission to use, copy, modify, and distribute this software and its
|
|
* documentation is hereby granted, under NXP Semiconductors' and its
|
|
* licensor's relevant copyrights in the software, without fee, provided that it
|
|
* is used in conjunction with NXP Semiconductors microcontrollers. This
|
|
* copyright, permission, and disclaimer notice must appear in all copies of
|
|
* this code.
|
|
*/
|
|
|
|
#ifndef __ROMDIV_11U6X_H_
|
|
#define __ROMDIV_11U6X_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** @defgroup ROMAPI_DIV_11U6X ROM divider API declarations
|
|
* @ingroup ROMAPI_11U6X
|
|
* The ROM-based 32-bit integer division routines are available for all LPC11U6x.
|
|
* These routines are performance optimized and reduce application code space. As
|
|
* part of chip library these routines overload “/” and “%” operators in C.
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Structure containing signed integer divider return data.
|
|
*/
|
|
typedef struct {
|
|
int quot; /*!< Quotient */
|
|
int rem; /*!< Reminder */
|
|
} IDIV_RETURN_T;
|
|
|
|
/**
|
|
* @brief Structure containing unsigned integer divider return data.
|
|
*/
|
|
typedef struct {
|
|
unsigned quot; /*!< Quotient */
|
|
unsigned rem; /*!< Reminder */
|
|
} UIDIV_RETURN_T;
|
|
|
|
/**
|
|
* @brief ROM divider API Structure.
|
|
*/
|
|
typedef struct {
|
|
int (*sidiv)(int numerator, int denominator); /*!< Signed integer division */
|
|
unsigned (*uidiv)(unsigned numerator, unsigned denominator); /*!< Unsigned integer division */
|
|
IDIV_RETURN_T (*sidivmod)(int numerator, int denominator); /*!< Signed integer division with remainder */
|
|
UIDIV_RETURN_T (*uidivmod)(unsigned numerator, unsigned denominator); /*!< Unsigned integer division with remainder */
|
|
} ROM_DIV_API_T;
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ROMDIV_11U6X_H_ */
|