1 | /*
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2 | * TOPPERS Software
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3 | * Toyohashi Open Platform for Embedded Real-Time Systems
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4 | *
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5 | * Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
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6 | * Toyohashi Univ. of Technology, JAPAN
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7 | * Copyright (C) 2004-2016 by Embedded and Real-Time Systems Laboratory
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8 | * Graduate School of Information Science, Nagoya Univ., JAPAN
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9 | *
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10 | * ä¸è¨èä½æ¨©è
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11 | ã¯ï¼ä»¥ä¸ã®(1)ï½(4)ã®æ¡ä»¶ãæºããå ´åã«éãï¼æ¬ã½ããã¦ã§
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12 | * ã¢ï¼æ¬ã½ããã¦ã§ã¢ãæ¹å¤ãããã®ãå«ãï¼ä»¥ä¸åãï¼ã使ç¨ã»è¤è£½ã»æ¹
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13 | * å¤ã»åé
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14 | å¸ï¼ä»¥ä¸ï¼å©ç¨ã¨å¼ã¶ï¼ãããã¨ãç¡åã§è¨±è«¾ããï¼
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15 | * (1) æ¬ã½ããã¦ã§ã¢ãã½ã¼ã¹ã³ã¼ãã®å½¢ã§å©ç¨ããå ´åã«ã¯ï¼ä¸è¨ã®èä½
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16 | * 権表示ï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãï¼ãã®ã¾ã¾ã®å½¢ã§ã½ã¼
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17 | * ã¹ã³ã¼ãä¸ã«å«ã¾ãã¦ãããã¨ï¼
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18 | * (2) æ¬ã½ããã¦ã§ã¢ãï¼ã©ã¤ãã©ãªå½¢å¼ãªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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19 | * ç¨ã§ããå½¢ã§åé
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20 | å¸ããå ´åã«ã¯ï¼åé
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21 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨
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22 | * è
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23 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®èä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨
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24 | * ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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25 | * (3) æ¬ã½ããã¦ã§ã¢ãï¼æ©å¨ã«çµã¿è¾¼ããªã©ï¼ä»ã®ã½ããã¦ã§ã¢éçºã«ä½¿
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26 | * ç¨ã§ããªãå½¢ã§åé
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27 | å¸ããå ´åã«ã¯ï¼æ¬¡ã®ããããã®æ¡ä»¶ãæºããã
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28 | * ã¨ï¼
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29 | * (a) åé
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30 | å¸ã«ä¼´ãããã¥ã¡ã³ãï¼å©ç¨è
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31 | ããã¥ã¢ã«ãªã©ï¼ã«ï¼ä¸è¨ã®è
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32 | * ä½æ¨©è¡¨ç¤ºï¼ãã®å©ç¨æ¡ä»¶ããã³ä¸è¨ã®ç¡ä¿è¨¼è¦å®ãæ²è¼ãããã¨ï¼
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33 | * (b) åé
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34 | å¸ã®å½¢æ
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35 | ãï¼å¥ã«å®ããæ¹æ³ã«ãã£ã¦ï¼TOPPERSããã¸ã§ã¯ãã«
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36 | * å ±åãããã¨ï¼
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37 | * (4) æ¬ã½ããã¦ã§ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ
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38 | * 害ãããï¼ä¸è¨èä½æ¨©è
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39 | ããã³TOPPERSããã¸ã§ã¯ããå
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40 | 責ãããã¨ï¼
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41 | * ã¾ãï¼æ¬ã½ããã¦ã§ã¢ã®ã¦ã¼ã¶ã¾ãã¯ã¨ã³ãã¦ã¼ã¶ããã®ãããªãç
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42 | * ç±ã«åºã¥ãè«æ±ãããï¼ä¸è¨èä½æ¨©è
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43 | ããã³TOPPERSããã¸ã§ã¯ãã
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44 | * å
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45 | 責ãããã¨ï¼
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46 | *
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47 | * æ¬ã½ããã¦ã§ã¢ã¯ï¼ç¡ä¿è¨¼ã§æä¾ããã¦ãããã®ã§ããï¼ä¸è¨èä½æ¨©è
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48 | ã
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49 | * ãã³TOPPERSããã¸ã§ã¯ãã¯ï¼æ¬ã½ããã¦ã§ã¢ã«é¢ãã¦ï¼ç¹å®ã®ä½¿ç¨ç®ç
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50 | * ã«å¯¾ããé©åæ§ãå«ãã¦ï¼ãããªãä¿è¨¼ãè¡ããªãï¼ã¾ãï¼æ¬ã½ããã¦ã§
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51 | * ã¢ã®å©ç¨ã«ããç´æ¥çã¾ãã¯éæ¥çã«çãããããªãæ害ã«é¢ãã¦ãï¼ã
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52 | * ã®è²¬ä»»ãè² ããªãï¼
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53 | *
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54 | * $Id: core_sil.h 270 2017-02-09 04:03:47Z coas-nagasima $
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55 | */
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56 |
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57 | /*
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58 | * sil.hã®ã³ã¢ä¾åé¨ï¼ARMç¨ï¼
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59 | *
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60 | * ãã®ããããã¡ã¤ã«ã¯ï¼target_sil.hï¼ã¾ãã¯ï¼ããããã¤ã³ã¯ã«ã¼ãã
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61 | * ãããã¡ã¤ã«ï¼ã®ã¿ããã¤ã³ã¯ã«ã¼ããããï¼ä»ã®ãã¡ã¤ã«ããç´æ¥ã¤ã³
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62 | * ã¯ã«ã¼ããã¦ã¯ãªããªãï¼
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63 | */
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64 |
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65 | #ifndef TOPPERS_CORE_SIL_H
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66 | #define TOPPERS_CORE_SIL_H
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67 |
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68 | #include <t_stddef.h>
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69 |
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70 | #ifndef TOPPERS_MACRO_ONLY
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71 | #ifndef __thumb__
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72 |
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73 | /*
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74 | * ã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿ï¼CPSRï¼ã®ç¾å¨å¤ã®èªåºã
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75 | */
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76 | Inline uint32_t
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77 | TOPPERS_current_cpsr(void)
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78 | {
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79 | uint32_t cpsr;
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80 |
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81 | Asm("mrs %0, cpsr" : "=r"(cpsr));
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82 | return(cpsr);
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83 | }
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84 |
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85 | /*
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86 | * ã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿ï¼CPSRï¼ã®ç¾å¨å¤ã®å¤æ´
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87 | */
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88 | Inline void
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89 | TOPPERS_set_cpsr(uint32_t cpsr)
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90 | {
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91 | Asm("msr cpsr_cxsf, %0" : : "r"(cpsr) : "memory","cc");
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92 | }
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93 |
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94 | #else /* __thumb__ */
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95 | /*
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96 | * Thumbã¢ã¼ãã§ã¯mrs/msrå½ä»¤ã使ç¨ã§ããªãããï¼é¢æ°ã¨ãã¦å®ç¾ãã¦ï¼
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97 | * ARMã¢ã¼ãã«ç§»è¡ãã¦å®è¡ããï¼
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98 | */
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99 |
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100 | /*
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101 | * ã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿ï¼CPSRï¼ã®ç¾å¨å¤ã®èªåºã
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102 | */
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103 | extern uint32_t current_cpsr(void);
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104 | #define TOPPERS_current_cpsr() current_cpsr()
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105 |
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106 | /*
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107 | * ã¹ãã¼ã¿ã¹ã¬ã¸ã¹ã¿ï¼CPSRï¼ã®ç¾å¨å¤ã®å¤æ´
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108 | */
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109 | extern void set_cpsr(uint32_t cpsr);
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110 | #define TOPPERS_set_cpsr(cpsr) current_cpsr(cpsr)
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111 |
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112 | #endif /* __thumb__ */
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113 |
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114 | /*
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115 | * ãã¹ã¦ã®å²è¾¼ã¿ï¼FIQã¨IRQï¼ã®ç¦æ¢
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116 | */
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117 | Inline uint32_t
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118 | TOPPERS_disint(void)
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119 | {
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120 | uint32_t cpsr;
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121 | uint32_t fiq_irq_mask;
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122 |
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123 | cpsr = TOPPERS_current_cpsr();
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124 | fiq_irq_mask = cpsr & (0x40U|0x80U);
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125 | #if __TARGET_ARCH_ARM == 6 || __TARGET_ARCH_ARM == 7
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126 | Asm("cpsid fi" ::: "memory");
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127 | #else /* __TARGET_ARCH_ARM == 6 || __TARGET_ARCH_ARM == 7 */
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128 | cpsr |= (0x40U|0x80U);
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129 | TOPPERS_set_cpsr(cpsr);
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130 | #endif /* __TARGET_ARCH_ARM == 6 || __TARGET_ARCH_ARM == 7 */
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131 | return(fiq_irq_mask);
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132 | }
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133 |
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134 | /*
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135 | * FIQã¨IRQã®ç¦æ¢ãããã®å¾©å¸°
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136 | */
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137 | Inline void
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138 | TOPPERS_set_fiq_irq(uint32_t fiq_irq_mask)
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139 | {
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140 | uint32_t cpsr;
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141 |
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142 | cpsr = TOPPERS_current_cpsr();
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143 | cpsr &= ~(0x40U|0x80U);
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144 | cpsr |= fiq_irq_mask;
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145 | TOPPERS_set_cpsr(cpsr);
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146 | }
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147 |
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148 | /*
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149 | * å
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150 | ¨å²è¾¼ã¿ããã¯ç¶æ
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151 | ã®å¶å¾¡
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152 | */
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153 | #define SIL_PRE_LOC uint32_t TOPPERS_fiq_irq_mask
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154 | #define SIL_LOC_INT() ((void)(TOPPERS_fiq_irq_mask = TOPPERS_disint()))
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155 | #define SIL_UNL_INT() (TOPPERS_set_fiq_irq(TOPPERS_fiq_irq_mask))
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156 |
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157 | #endif /* TOPPERS_MACRO_ONLY */
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158 | #endif /* TOPPERS_CORE_SIL_H */
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