LPCOpen Platform for LPC112X microcontrollers  112X
LPCOpen Platform for the NXP LPC112X family of Microcontrollers
romdiv_112x.c
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1 /*
2  * @brief Routines to overload "/" and "%" operator in C using ROM based divider library
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2013
6  * All rights reserved.
7  *
8  * @par
9  * Software that is described herein is for illustrative purposes only
10  * which provides customers with programming information regarding the
11  * LPC products. This software is supplied "AS IS" without any warranties of
12  * any kind, and NXP Semiconductors and its licensor disclaim any and
13  * all warranties, express or implied, including all implied warranties of
14  * merchantability, fitness for a particular purpose and non-infringement of
15  * intellectual property rights. NXP Semiconductors assumes no responsibility
16  * or liability for the use of the software, conveys no license or rights under any
17  * patent, copyright, mask work right, or any other intellectual property rights in
18  * or to any products. NXP Semiconductors reserves the right to make changes
19  * in the software without notification. NXP Semiconductors also makes no
20  * representation or warranty that such application will be suitable for the
21  * specified use without further testing or modification.
22  *
23  * @par
24  * Permission to use, copy, modify, and distribute this software and its
25  * documentation is hereby granted, under NXP Semiconductors' and its
26  * licensor's relevant copyrights in the software, without fee, provided that it
27  * is used in conjunction with NXP Semiconductors microcontrollers. This
28  * copyright, permission, and disclaimer notice must appear in all copies of
29  * this code.
30  */
31 #include "chip.h"
32 
33 /*****************************************************************************
34  * Private types/enumerations/variables
35  ****************************************************************************/
36 
37 /*****************************************************************************
38  * Public types/enumerations/variables
39  ****************************************************************************/
40 
41 /*****************************************************************************
42  * Private functions
43  ****************************************************************************/
44 
45 /*****************************************************************************
46  * Public functions
47  ****************************************************************************/
48 
49 #if !defined(__GNUC__) && defined(INCLUDE_ROM_DIV)
50 
51 /* Redirector of signed 32 bit integer divider to ROM routine */
52 int __aeabi_idiv(int numerator, int denominator)
53 {
54  ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
55  return pROMDiv->sidiv(numerator, denominator);
56 }
57 
58 /* Redirector of unsigned 32 bit integer divider to ROM routine */
59 unsigned __aeabi_uidiv(unsigned numerator, unsigned denominator)
60 {
61  ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
62  return pROMDiv->uidiv(numerator, denominator);
63 }
64 
65 /* Redirector of signed 32 bit integer divider with reminder to ROM routine */
66 __value_in_regs IDIV_RETURN_T __aeabi_idivmod(int numerator, int denominator)
67 {
68  ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
69  return pROMDiv->sidivmod(numerator, denominator);
70 }
71 
72 /* Redirector of unsigned 32 bit integer divider with reminder to ROM routine */
73 __value_in_regs UIDIV_RETURN_T __aeabi_uidivmod(unsigned numerator, unsigned denominator)
74 {
75  ROM_DIV_API_T const *pROMDiv = LPC_ROM_API->divApiBase;
76  return pROMDiv->uidivmod(numerator, denominator);
77 }
78 
79 #endif /* !defined( __GNUC__ ) */