FreeCalypso > hg > fc-magnetite
annotate src/gpf3/ccd/s_padding.c @ 47:472fba6e92b7
power.lib done
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 30 Sep 2016 20:48:31 +0000 |
parents | c41a534f33c6 |
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rev | line source |
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | Project : |
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4 | Modul : s_padding.c |
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5 +----------------------------------------------------------------------------- |
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6 | Copyright 2002 Texas Instruments Berlin, AG |
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7 | All rights reserved. |
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8 | |
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9 | This file is confidential and a trade secret of Texas |
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10 | Instruments Berlin, AG |
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11 | The receipt of or possession of this file does not convey |
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12 | any rights to reproduce or disclose its contents or to |
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13 | manufacture, use, or sell anything it may describe, in |
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14 | whole, or in part, without the specific written consent of |
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15 | Texas Instruments Berlin, AG. |
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16 +----------------------------------------------------------------------------- |
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17 | Purpose : Definition of encoding and decoding functions for S_PADDING elements |
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18 +----------------------------------------------------------------------------- |
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19 */ |
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20 |
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21 |
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22 /* |
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23 * standard definitions like GLOBAL, UCHAR, ERROR etc. |
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24 */ |
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25 #include "typedefs.h" |
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26 #include "header.h" |
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27 |
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28 /* |
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29 * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only |
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30 * look at ccdapi.h |
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31 */ |
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32 #undef USE_DRIVER |
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33 #include "ccdapi.h" |
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34 |
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35 /* |
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36 * Types and functions for bit access and manipulation |
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37 */ |
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38 #include "ccd_globs.h" |
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39 #include "bitfun.h" |
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40 |
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41 /* |
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42 * Prototypes of ccd internal functions |
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43 */ |
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44 #include "ccd.h" |
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45 |
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46 /* |
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47 * Declaration of coder/decoder tables |
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48 */ |
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49 #include "ccdtable.h" |
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50 #include "ccddata.h" |
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51 |
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52 #ifndef RUN_FLASH |
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53 /* |
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54 +--------------------------------------------------------------------+ |
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55 | PROJECT : CCD (6144) MODULE : CDC_GSM | |
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56 | STATE : code ROUTINE : cdc_padd_decode | |
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57 +--------------------------------------------------------------------+ |
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58 |
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59 PURPOSE : Decoding of the GSM Type CSN1 spare padding. |
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60 This function does not evaluate the encoded bits, since |
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61 their content is irrelevant. |
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62 */ |
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63 |
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64 SHORT cdc_padd_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) |
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65 { |
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66 USHORT cixRef; |
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67 |
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68 #ifdef DEBUG_CCD |
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69 TRACE_CCD (globs, "cdc_padd_decode()"); |
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70 #endif |
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71 |
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72 /* |
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73 * Do not decode padding bits. They are not relevant. |
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74 * Just adjust the position pointer in the bit stream buffer. |
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75 * Either to the next octet boundary or to the message end, if necessary. |
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76 */ |
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77 bf_incBitpos (8-(globs->bitpos & 7), globs); |
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78 |
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79 /* First assume padding bits up to an octet boundary. In this case |
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80 * message extension could be made of T, TV or TLV types. |
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81 */ |
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82 globs->SeekTLVExt = TRUE; |
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83 |
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84 cixRef = melem[e_ref].calcIdxRef; |
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85 if (calcidx[cixRef].numPrologSteps > 0) |
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86 { |
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87 USHORT msgEnd = (USHORT) calc[calcidx[cixRef].prologStepRef].operand * 8; |
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88 if (msgEnd) |
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89 { |
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90 msgEnd += globs->bitoffs; |
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91 msgEnd = (USHORT)MINIMUM(globs->maxBitpos, msgEnd); |
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92 bf_setBitpos (msgEnd, globs); |
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93 /* |
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94 * Padding bytes exclude the presence of message extension. |
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95 */ |
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96 globs->SeekTLVExt = FALSE; |
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97 } |
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98 } |
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99 |
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100 return 1; |
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101 } |
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102 #endif /* !RUN_FLASH */ |
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103 |
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104 #ifndef RUN_FLASH |
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105 /* |
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106 +--------------------------------------------------------------------+ |
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107 | PROJECT : CCD (6144) MODULE : CDC_GSM | |
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108 | STATE : code ROUTINE : cdc_padd_encode | |
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109 +--------------------------------------------------------------------+ |
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110 |
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111 PURPOSE : Encoding of the GSM Type CSN1 spare padding. |
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112 Supported padding values are 0x00 and 0x2B, if first prolog |
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113 step is a value msg_len, padding is done until globs->bitpos is |
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114 msg_len*8, else until octet boundary |
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115 */ |
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116 |
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117 SHORT cdc_padd_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) |
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118 { |
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119 UBYTE padd_bit = 0; |
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120 USHORT cixRef; |
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121 |
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122 #ifdef DEBUG_CCD |
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123 TRACE_CCD (globs, "cdc_padd_encode()"); |
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124 #endif |
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125 |
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126 cixRef = melem[e_ref].calcIdxRef; |
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127 |
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128 /* |
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129 * if this element is conditional, check the condition |
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130 */ |
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131 if (calcidx[cixRef].numCondCalcs NEQ 0 |
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132 AND ! ccd_conditionOK (e_ref, globs)) |
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133 return 1; |
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134 |
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135 if (melem[e_ref].elemType EQ 'S' AND spare[melem[e_ref].elemRef].bSize EQ 8) |
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136 { |
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137 UBYTE spareVal = (UBYTE)(spare[melem[e_ref].elemRef].value); |
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138 /* |
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139 * Element is a SPARE of length 8. |
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140 */ |
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141 while (globs->bitpos % 8 NEQ 0) |
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142 { |
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143 switch(spareVal) |
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144 { |
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145 case 0: |
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146 break; |
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147 case 0x2B: |
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148 padd_bit = (UBYTE)GET_HL(0); |
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149 break; |
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150 default: |
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151 ccd_setError (globs, ERR_INTERNAL_ERROR, |
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152 BREAK, |
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153 (USHORT) (globs->bitpos), |
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154 (USHORT) -1); |
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155 } |
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156 bf_writeBit (padd_bit, globs); |
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157 } |
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158 if (calcidx[cixRef].numPrologSteps > 0) |
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159 { |
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160 if (calc[calcidx[cixRef].prologStepRef].operation NEQ 'P') |
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161 ccd_setError (globs, ERR_INTERNAL_ERROR, BREAK, (USHORT) -1); |
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162 else |
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163 { |
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164 USHORT msgLen = (USHORT)(calc[calcidx[cixRef].prologStepRef].operand * 8); |
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165 |
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166 while (globs->bitpos - globs->bitoffs < msgLen ) |
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167 { |
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168 bf_codeLongNumber (8, (ULONG) spareVal, globs); |
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169 } |
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170 } |
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171 } |
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172 } |
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173 else |
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174 { |
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175 ccd_setError (globs, ERR_INVALID_TYPE, |
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176 BREAK, |
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177 (USHORT) (globs->bitpos), |
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178 (USHORT) -1); |
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179 } |
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180 |
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181 return 1; |
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182 } |
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183 #endif /* !RUN_FLASH */ |