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annotate gsm-fw/gpf/frame/vsi_sem.c @ 923:10b4bed10192

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gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +0000
parents 2c760f6b1fe0
children
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1 /*
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2 +------------------------------------------------------------------------------
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3 | File: vsi_sem.c
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4 +------------------------------------------------------------------------------
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5 | Copyright 2002 Texas Instruments Berlin, AG
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6 | All rights reserved.
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7 |
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8 | This file is confidential and a trade secret of Texas
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9 | Instruments Berlin, AG
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10 | The receipt of or possession of this file does not convey
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11 | any rights to reproduce or disclose its contents or to
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12 | manufacture, use, or sell anything it may describe, in
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13 | whole, or in part, without the specific written consent of
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14 | Texas Instruments Berlin, AG.
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15 +-----------------------------------------------------------------------------
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16 | Purpose : This Module defines the virtual system interface part
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17 | for the semaphore handling.
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18 +-----------------------------------------------------------------------------
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19 */
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20
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21 #ifndef __VSI_SEM_C__
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22 #define __VSI_SEM_C__
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23 #endif
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24
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25 /*==== INCLUDES ===================================================*/
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26
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27 #include "gpfconf.h"
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28 #include "typedefs.h"
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29 #include "vsi.h"
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30 #include "os.h"
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31 #include "frm_defs.h"
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32 #include "frm_types.h"
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33 #include "frm_glob.h"
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34
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35 /*==== TYPES ======================================================*/
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36
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37
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38 /*==== CONSTANTS ==================================================*/
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40
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41 /*==== EXTERNALS ==================================================*/
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42 /* -------------- S H A R E D - BEGIN ---------------- */
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43 #ifdef _TOOLS_
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44 #pragma data_seg("FRAME_SHARED")
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45 #endif
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46
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47 /*==== VARIABLES ==================================================*/
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49
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50 #ifdef _TOOLS_
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51 #pragma data_seg()
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52 #endif
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53 /* -------------- S H A R E D - END ---------------- */
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54
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55 /*==== FUNCTIONS ==================================================*/
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56
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57
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58 #ifndef RUN_INT_RAM
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59 /*
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60 +--------------------------------------------------------------------+
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61 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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62 | STATE : code ROUTINE : vsi_s_open |
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63 +--------------------------------------------------------------------+
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64
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65 PURPOSE : opens a semaphore, creates if not exist
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66
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67 */
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68
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69 T_HANDLE vsi_s_open (T_HANDLE Caller, char *Name, USHORT Count)
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70 {
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71 OS_HANDLE SemHandle;
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72
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73 /*
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74 * if semaphore already exists, return handle
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75 */
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76 if ( os_OpenSemaphore ( Caller, Name, &SemHandle ) != OS_ERROR )
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77 return SemHandle;
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78
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79 /*
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80 * if semaphore not exists, create
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81 */
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82 if ( os_CreateSemaphore ( Caller, Name, Count, &SemHandle, pf_TaskTable[Caller].MemPoolHandle ) != OS_ERROR )
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83 return SemHandle;
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84 else
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85 vsi_o_assert( Caller, OS_SYST_ERR_MAX_SEMA, __FILE__, __LINE__,
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86 "Number of created semaphores > MAX_SEMAPHORES" );
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87
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88 /*
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89 * if semaphore cannot be created, return VSI_ERROR
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90 */
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91 return VSI_ERROR;
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92 }
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93 #endif
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94
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95 #ifndef RUN_INT_RAM
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96 /*
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97 +--------------------------------------------------------------------+
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98 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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99 | STATE : code ROUTINE : vsi_s_close |
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100 +--------------------------------------------------------------------+
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101
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102 PURPOSE : closes a semaphore
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103
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104 */
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105
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106 int vsi_s_close (T_HANDLE Caller, T_HANDLE SemHandle)
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107 {
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108
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109 if ( os_CloseSemaphore ( Caller, SemHandle ) != OS_ERROR )
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110 return VSI_OK;
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111
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112 return VSI_ERROR;
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113 }
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114 #endif
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115
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116 #ifndef RUN_FLASH
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117 /*
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118 +--------------------------------------------------------------------+
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119 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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120 | STATE : code ROUTINE : vsi_s_get |
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121 +--------------------------------------------------------------------+
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122
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123 PURPOSE : obtains a semaphore
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124
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125 */
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126
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127 int vsi_s_get (T_HANDLE Caller, T_HANDLE SemHandle)
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128 {
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129 LONG Status;
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130
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131 Status = os_ObtainSemaphore ( Caller, SemHandle, OS_SUSPEND );
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132 if ( Status == OS_OK || Status == OS_WAITED )
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133 return VSI_OK;
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134
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135 return VSI_ERROR;
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136 }
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137 #endif
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138
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139 #ifndef RUN_FLASH
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140 /*
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141 +--------------------------------------------------------------------+
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142 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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143 | STATE : code ROUTINE : vsi_s_release |
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144 +--------------------------------------------------------------------+
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145
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146 PURPOSE : releases a semaphore
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147
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148 */
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149
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150 int vsi_s_release (T_HANDLE Caller, T_HANDLE SemHandle)
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151 {
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152
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153 if ( os_ReleaseSemaphore ( Caller, SemHandle ) != OS_ERROR )
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154 return VSI_OK;
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155
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156 return VSI_ERROR;
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157 }
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158 #endif
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159
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160 #ifndef RUN_INT_RAM
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161 /*
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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162 +--------------------------------------------------------------------+
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163 | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM |
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164 | STATE : code ROUTINE : vsi_s_status |
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165 +--------------------------------------------------------------------+
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166
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167 PURPOSE : request the current count of a semaphore
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168
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169 */
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170
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171 int vsi_s_status (T_HANDLE Caller, T_HANDLE SemHandle, USHORT *Count )
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172 {
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173
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174 if ( os_QuerySemaphore ( Caller, SemHandle, Count ) != OS_ERROR )
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175 return VSI_OK;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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176
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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177 return VSI_ERROR;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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178 }
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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179 #endif
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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180