1 | /* |
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2 | Author : Shay Gal-On, EEMBC |
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3 | |
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4 | This file is part of EEMBC(R) and CoreMark(TM), which are Copyright (C) 2009 |
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5 | All rights reserved. |
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6 | |
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7 | EEMBC CoreMark Software is a product of EEMBC and is provided under the terms of the |
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8 | CoreMark License that is distributed with the official EEMBC COREMARK Software release. |
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9 | If you received this EEMBC CoreMark Software without the accompanying CoreMark License, |
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10 | you must discontinue use and download the official release from www.coremark.org. |
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11 | |
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12 | Also, if you are publicly displaying scores generated from the EEMBC CoreMark software, |
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13 | make sure that you are in compliance with Run and Reporting rules specified in the accompanying readme.txt file. |
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14 | |
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15 | EEMBC |
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16 | 4354 Town Center Blvd. Suite 114-200 |
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17 | El Dorado Hills, CA, 95762 |
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18 | */ |
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19 | #include "coremark.h" |
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20 | /* Function: get_seed |
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21 | Get a values that cannot be determined at compile time. |
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22 | |
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23 | Since different embedded systems and compilers are used, 3 different methods are provided: |
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24 | 1 - Using a volatile variable. This method is only valid if the compiler is forced to generate code that |
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25 | reads the value of a volatile variable from memory at run time. |
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26 | Please note, if using this method, you would need to modify core_portme.c to generate training profile. |
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27 | 2 - Command line arguments. This is the preferred method if command line arguments are supported. |
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28 | 3 - System function. If none of the first 2 methods is available on the platform, |
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29 | a system function which is not a stub can be used. |
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30 | |
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31 | e.g. read the value on GPIO pins connected to switches, or invoke special simulator functions. |
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32 | */ |
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33 | #if (SEED_METHOD==SEED_VOLATILE) |
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34 | extern volatile ee_s32 seed1_volatile; |
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35 | extern volatile ee_s32 seed2_volatile; |
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36 | extern volatile ee_s32 seed3_volatile; |
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37 | extern volatile ee_s32 seed4_volatile; |
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38 | extern volatile ee_s32 seed5_volatile; |
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39 | ee_s32 get_seed_32(int i) { |
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40 | ee_s32 retval; |
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41 | switch (i) { |
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42 | case 1: |
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43 | retval=seed1_volatile; |
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44 | break; |
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45 | case 2: |
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46 | retval=seed2_volatile; |
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47 | break; |
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48 | case 3: |
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49 | retval=seed3_volatile; |
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50 | break; |
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51 | case 4: |
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52 | retval=seed4_volatile; |
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53 | break; |
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54 | case 5: |
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55 | retval=seed5_volatile; |
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56 | break; |
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57 | default: |
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58 | retval=0; |
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59 | break; |
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60 | } |
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61 | return retval; |
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62 | } |
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63 | #elif (SEED_METHOD==SEED_ARG) |
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64 | ee_s32 parseval(char *valstring) { |
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65 | ee_s32 retval=0; |
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66 | ee_s32 neg=1; |
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67 | int hexmode=0; |
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68 | if (*valstring == '-') { |
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69 | neg=-1; |
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70 | valstring++; |
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71 | } |
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72 | if ((valstring[0] == '0') && (valstring[1] == 'x')) { |
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73 | hexmode=1; |
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74 | valstring+=2; |
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75 | } |
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76 | /* first look for digits */ |
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77 | if (hexmode) { |
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78 | while (((*valstring >= '0') && (*valstring <= '9')) || ((*valstring >= 'a') && (*valstring <= 'f'))) { |
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79 | ee_s32 digit=*valstring-'0'; |
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80 | if (digit>9) |
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81 | digit=10+*valstring-'a'; |
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82 | retval*=16; |
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83 | retval+=digit; |
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84 | valstring++; |
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85 | } |
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86 | } else { |
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87 | while ((*valstring >= '0') && (*valstring <= '9')) { |
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88 | ee_s32 digit=*valstring-'0'; |
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89 | retval*=10; |
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90 | retval+=digit; |
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91 | valstring++; |
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92 | } |
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93 | } |
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94 | /* now add qualifiers */ |
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95 | if (*valstring=='K') |
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96 | retval*=1024; |
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97 | if (*valstring=='M') |
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98 | retval*=1024*1024; |
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99 | |
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100 | retval*=neg; |
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101 | return retval; |
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102 | } |
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103 | |
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104 | ee_s32 get_seed_args(int i, int argc, char *argv[]) { |
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105 | if (argc>i) |
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106 | return parseval(argv[i]); |
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107 | return 0; |
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108 | } |
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109 | |
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110 | #elif (SEED_METHOD==SEED_FUNC) |
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111 | /* If using OS based function, you must define and implement the functions below in core_portme.h and core_portme.c ! */ |
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112 | ee_s32 get_seed_32(int i) { |
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113 | ee_s32 retval; |
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114 | switch (i) { |
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115 | case 1: |
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116 | retval=portme_sys1(); |
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117 | break; |
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118 | case 2: |
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119 | retval=portme_sys2(); |
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120 | break; |
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121 | case 3: |
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122 | retval=portme_sys3(); |
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123 | break; |
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124 | case 4: |
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125 | retval=portme_sys4(); |
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126 | break; |
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127 | case 5: |
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128 | retval=portme_sys5(); |
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129 | break; |
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130 | default: |
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131 | retval=0; |
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132 | break; |
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133 | } |
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134 | return retval; |
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135 | } |
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136 | #endif |
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137 | |
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138 | /* Function: crc* |
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139 | Service functions to calculate 16b CRC code. |
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140 | |
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141 | */ |
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142 | ee_u16 crcu8(ee_u8 data, ee_u16 crc ) |
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143 | { |
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144 | ee_u8 i=0,x16=0,carry=0; |
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145 | |
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146 | for (i = 0; i < 8; i++) |
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147 | { |
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148 | x16 = (ee_u8)((data & 1) ^ ((ee_u8)crc & 1)); |
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149 | data >>= 1; |
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150 | |
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151 | if (x16 == 1) |
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152 | { |
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153 | crc ^= 0x4002; |
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154 | carry = 1; |
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155 | } |
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156 | else |
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157 | carry = 0; |
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158 | crc >>= 1; |
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159 | if (carry) |
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160 | crc |= 0x8000; |
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161 | else |
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162 | crc &= 0x7fff; |
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163 | } |
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164 | return crc; |
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165 | } |
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166 | ee_u16 crcu16(ee_u16 newval, ee_u16 crc) { |
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167 | crc=crcu8( (ee_u8) (newval) ,crc); |
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168 | crc=crcu8( (ee_u8) ((newval)>>8) ,crc); |
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169 | return crc; |
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170 | } |
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171 | ee_u16 crcu32(ee_u32 newval, ee_u16 crc) { |
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172 | crc=crc16((ee_s16) newval ,crc); |
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173 | crc=crc16((ee_s16) (newval>>16) ,crc); |
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174 | return crc; |
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175 | } |
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176 | ee_u16 crc16(ee_s16 newval, ee_u16 crc) { |
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177 | return crcu16((ee_u16)newval, crc); |
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178 | } |
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179 | |
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180 | ee_u8 check_data_types() { |
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181 | ee_u8 retval=0; |
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182 | if (sizeof(ee_u8) != 1) { |
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183 | ee_printf("ERROR: ee_u8 is not an 8b datatype!\n"); |
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184 | retval++; |
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185 | } |
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186 | if (sizeof(ee_u16) != 2) { |
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187 | ee_printf("ERROR: ee_u16 is not a 16b datatype!\n"); |
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188 | retval++; |
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189 | } |
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190 | if (sizeof(ee_s16) != 2) { |
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191 | ee_printf("ERROR: ee_s16 is not a 16b datatype!\n"); |
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192 | retval++; |
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193 | } |
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194 | if (sizeof(ee_s32) != 4) { |
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195 | ee_printf("ERROR: ee_s32 is not a 32b datatype!\n"); |
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196 | retval++; |
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197 | } |
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198 | if (sizeof(ee_u32) != 4) { |
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199 | ee_printf("ERROR: ee_u32 is not a 32b datatype!\n"); |
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200 | retval++; |
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201 | } |
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202 | if (sizeof(ee_ptr_int) != sizeof(int *)) { |
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203 | ee_printf("ERROR: ee_ptr_int is not a datatype that holds an int pointer!\n"); |
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204 | retval++; |
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205 | } |
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206 | if (retval>0) { |
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207 | ee_printf("ERROR: Please modify the datatypes in core_portme.h!\n"); |
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208 | } |
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209 | return retval; |
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210 | } |
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