1 | /*------------------------------------------------------------\ |
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2 | | | |
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3 | | Tool : systemcass | |
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4 | | | |
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5 | | File : sc_trace.cc | |
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6 | | | |
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7 | | Author : Kingbo Paul-Jerome | |
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8 | | Buchmann Richard | |
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9 | | | |
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10 | | Date : 09_07_2004 | |
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11 | | | |
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12 | \------------------------------------------------------------*/ |
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13 | |
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14 | /* |
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15 | * This file is part of the Disydent Project |
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16 | * Copyright (C) Laboratoire LIP6 - Département ASIM |
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17 | * Universite Pierre et Marie Curie |
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18 | * |
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19 | * Home page : http://www-asim.lip6.fr/disydent |
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20 | * E-mail : mailto:richard.buchmann@lip6.fr |
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21 | * |
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22 | * This library is free software; you can redistribute it and/or modify it |
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23 | * under the terms of the GNU Library General Public License as published |
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24 | * by the Free Software Foundation; either version 2 of the License, or (at |
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25 | * your option) any later version. |
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26 | * |
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27 | * Disydent is distributed in the hope that it will be |
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28 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
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29 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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30 | * Public License for more details. |
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31 | * |
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32 | * You should have received a copy of the GNU General Public License along |
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33 | * with the GNU C Library; see the file COPYING. If not, write to the Free |
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34 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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35 | */ |
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36 | |
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37 | #include <cassert> |
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38 | #include <list> |
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39 | #include <cstdio> |
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40 | #include <iostream> |
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41 | #include <cstring> //strlen |
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42 | |
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43 | #include "sc_port.h" |
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44 | #include "sc_clock.h" |
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45 | #include "sc_trace.h" |
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46 | #include "sc_interface.h" |
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47 | #include "bit2string.h" |
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48 | #include "hex2string.h" |
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49 | |
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50 | #ifdef HAVE_CONFIG_H |
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51 | #include "config.h" |
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52 | #endif |
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53 | |
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54 | |
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55 | //----------------------------------------- |
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56 | |
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57 | using namespace std; |
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58 | |
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59 | //----------------------------------------- |
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60 | #ifdef CONFIG_PAT_TRACE_FORMAT |
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61 | |
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62 | extern "C" { |
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63 | #include "genpat.h" |
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64 | } |
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65 | |
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66 | #include <cstdlib> |
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67 | #include <cstdio> |
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68 | |
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69 | #endif // CONFIG_PAT_TRACE_FORMAT |
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70 | //----------------------------------------- |
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71 | |
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72 | |
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73 | namespace sc_core { |
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74 | |
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75 | vector<sc_trace_file *> trace_file_list; |
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76 | uint64 cpt = 0; |
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77 | uint64 trace_start = 0; |
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78 | |
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79 | |
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80 | static void init(sc_trace_file & tf) { |
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81 | if (dump_stage) { |
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82 | cerr << "Initializing trace functions : Looking for clocks..."; |
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83 | } |
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84 | |
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85 | vector<signal2trace>::iterator i; |
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86 | i = (tf.sig_list).begin(); |
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87 | while (i != (tf.sig_list).end()) { |
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88 | if (is_clock(*(i->inter))) { |
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89 | tf.clk_list.push_back(*i); |
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90 | i = tf.sig_list.erase(i); |
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91 | } |
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92 | else { |
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93 | ++i; |
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94 | } |
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95 | } |
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96 | if (dump_stage) { |
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97 | cerr << "Done\n"; |
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98 | } |
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99 | } |
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100 | |
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101 | |
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102 | static void vcd_print_cycle_number(FILE * f,long long unsigned int num) { |
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103 | string cycle; |
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104 | |
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105 | // affichage des cycles (#500 ou #2500 etc...) |
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106 | fprintf(f,"\n#%llu00\n", num * 5);//cycle de simulation |
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107 | } |
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108 | |
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109 | |
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110 | |
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111 | //-------------------------------------------------------------------------------------- |
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112 | // trace function |
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113 | // Called each end of cycle to dump in trace files |
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114 | void trace_all(bool part) { |
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115 | if (trace_file_list.empty()) { |
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116 | return; |
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117 | } |
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118 | |
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119 | if (cpt >= trace_start) { |
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120 | vector<sc_trace_file *>::const_iterator ptf; |
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121 | for (ptf = trace_file_list.begin(); ptf != trace_file_list.end(); ++ptf) { |
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122 | sc_trace_file * tf = *ptf; |
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123 | assert(tf != NULL); |
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124 | trace(*tf, part); |
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125 | } |
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126 | } |
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127 | |
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128 | cpt++; |
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129 | } |
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130 | |
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131 | |
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132 | #ifdef CONFIG_PAT_TRACE_FORMAT |
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133 | static void pat_set_value(char * buf, const signal2trace & s) { |
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134 | if ((s.bit_size % 4) == 0) { |
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135 | buf[1] = 'x'; |
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136 | hex2string(buf + 2, s.inter->get_pointer(), s.bit_size); |
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137 | } |
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138 | else { |
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139 | buf[1] = 'b'; |
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140 | bit2string(buf + 2, s.inter->get_pointer(), s.bit_size); |
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141 | } |
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142 | } |
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143 | |
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144 | |
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145 | inline static void affect(const char * cur, const char * nomSig, const char * buf) { |
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146 | AFFECT ((char*)cur, (char*)nomSig, (char*)buf ); |
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147 | } |
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148 | |
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149 | |
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150 | |
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151 | inline static void pat_trace( |
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152 | sc_trace_file & tf, |
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153 | const signal2trace & s2t, |
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154 | const ostringstream & cur1, |
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155 | const ostringstream & cur2) { |
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156 | static char buf[50] = "0\0"; |
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157 | //cout << "Nom du signal: " << s->nomSig; |
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158 | pat_set_value(buf, s2t); |
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159 | affect(cur1.str().c_str(), s2t.nomSig.c_str(), buf); |
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160 | affect(cur2.str().c_str(), s2t.nomSig.c_str(), buf); |
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161 | } |
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162 | |
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163 | |
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164 | inline static void pat_trace_clocks( |
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165 | sc_trace_file & tf, |
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166 | const ostringstream & cur1, |
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167 | const ostringstream & cur2) { |
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168 | vector<signal2trace>::const_iterator s; |
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169 | for (s = (tf.clk_list).begin(); s != (tf.clk_list).end(); s++) { |
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170 | const signal2trace & s2t = *s; |
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171 | char * name = (char *) ((s2t.nomSig).c_str()); |
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172 | const sc_interface * inter = s2t.inter; |
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173 | const sc_clock * clk = (const sc_clock *) inter; |
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174 | bool posedge_first = clk->posedge_first; |
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175 | char * a, * b; |
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176 | if (posedge_first) { |
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177 | a = "0B1"; |
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178 | b = "0B0"; |
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179 | } |
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180 | else { |
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181 | a = "0B0"; |
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182 | b = "0B1"; |
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183 | } |
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184 | affect(cur1.str().c_str(), name, a); |
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185 | affect(cur2.str().c_str(), name, b); |
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186 | } |
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187 | } |
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188 | |
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189 | |
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190 | static void pat_trace_init(sc_trace_file & tf) { |
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191 | init(tf); |
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192 | } |
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193 | |
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194 | |
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195 | static void pat_trace(sc_trace_file & tf, bool part) { |
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196 | if (part) { |
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197 | return; |
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198 | } |
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199 | |
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200 | if (cpt == trace_start) { |
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201 | pat_trace_init(tf); |
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202 | } |
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203 | |
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204 | // time counters |
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205 | ostringstream cur1, cur2; |
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206 | long long unsigned int buf = cpt * 5; |
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207 | cur1 << buf << "00"; |
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208 | cur2 << buf + 5 << "00"; |
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209 | |
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210 | // affect each signal |
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211 | vector<signal2trace>::iterator s; |
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212 | for (s = (tf.sig_list).begin(); s != (tf.sig_list).end(); s++) { |
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213 | pat_trace(tf, *s, cur1, cur2); |
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214 | } |
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215 | pat_trace_clocks(tf, cur1, cur2); |
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216 | } |
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217 | |
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218 | #else |
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219 | void pat_trace (sc_trace_file & tf, bool part) {} |
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220 | #endif // CONFIG_PAT_TRACE_FORMAT |
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221 | |
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222 | |
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223 | static bool is_modified(const signal2trace & s2t) { |
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224 | unsigned int bit_size = s2t.bit_size; |
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225 | if (bit_size > 32) { |
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226 | const uint64 * const pointer_saved = (const uint64 *) s2t.pointer; |
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227 | const uint64 * const pointer_current = (const uint64 *) s2t.inter->get_pointer(); |
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228 | return (*pointer_saved != *pointer_current); |
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229 | } |
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230 | else if (bit_size > 16) { |
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231 | const uint32 * const pointer_saved = (const uint32 *) s2t.pointer; |
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232 | const uint32 * const pointer_current = (const uint32 *) s2t.inter->get_pointer(); |
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233 | return (*pointer_saved != *pointer_current); |
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234 | } |
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235 | else { |
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236 | const uint16 * const pointer_saved = (const uint16 *) s2t.pointer; |
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237 | const uint16 * const pointer_current = (const uint16 *) s2t.inter->get_pointer(); |
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238 | return (*pointer_saved != *pointer_current); |
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239 | } |
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240 | } |
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241 | |
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242 | |
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243 | static bool save_modification(signal2trace & s2t) { |
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244 | *(s2t.pointer) = *(s2t.inter->get_pointer()); |
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245 | } |
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246 | |
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247 | |
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248 | static inline void print(sc_trace_file & tf, signal2trace & s2t) { |
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249 | char buf[100]; |
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250 | bit2string(buf + 1, s2t.inter->get_pointer() , s2t.bit_size); |
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251 | |
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252 | char * buf2 = strip(buf + 1); |
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253 | int len = strlen(buf2); |
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254 | if (s2t.bit_size != 1) { |
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255 | --buf2; |
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256 | buf2[0] = 'b'; |
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257 | sprintf(buf2 + len + 1, " %s\n", s2t.alias); |
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258 | } |
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259 | else { |
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260 | sprintf(buf2 + len, "%s\n", s2t.alias); |
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261 | } |
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262 | |
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263 | // ecriture liste[i] dans le fichier VCD: |
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264 | if ((fprintf(tf.pfic,buf2)) == 0) { |
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265 | cerr << "erreur ecriture du couple Valeur/Nom du signal dans le VCD\n"; |
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266 | exit(16); |
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267 | } |
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268 | } |
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269 | |
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270 | |
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271 | static inline void vcd_trace(sc_trace_file & tf, signal2trace & s2t, bool skip = true) { |
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272 | if ((skip) && (!is_modified(s2t))) { |
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273 | return; |
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274 | } |
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275 | save_modification(s2t); |
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276 | print(tf, s2t); |
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277 | } |
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278 | |
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279 | |
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280 | static void vcd_trace_clocks(const sc_trace_file & tf, bool v) { |
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281 | vector<signal2trace>::const_iterator i; |
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282 | for (i = (tf.clk_list).begin(); i != (tf.clk_list).end(); i++) { |
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283 | const signal2trace & s2t = *i; |
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284 | const sc_interface * inter = s2t.inter; |
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285 | const sc_clock * clk = (const sc_clock *) inter; |
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286 | bool posedge_first = clk->posedge_first; |
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287 | fprintf(tf.pfic, "%c%s\n",(v^posedge_first)?'0':'1', i->alias); |
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288 | } |
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289 | } |
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290 | |
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291 | |
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292 | static tab_t * vcd_signal_table = NULL; |
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293 | |
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294 | |
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295 | static int vcd_get_size(const signal2trace & s2t) { |
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296 | #if 0 |
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297 | cerr << "alias : " << s2t.alias << "\n"; |
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298 | cerr << "bit_size : " << s2t.bit_size << "\n"; |
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299 | cerr << "=> #tab_t : " << ((s2t.bit_size - 1) / (sizeof (tab_t)*8)) + 1 << "\n"; |
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300 | #endif |
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301 | return ((s2t.bit_size - 1) / (sizeof(tab_t) * 8)) + 1; |
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302 | } |
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303 | |
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304 | |
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305 | static int vcd_get_signal_table_size(const sc_trace_file & tf) { |
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306 | int total_size = 0; |
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307 | vector<signal2trace>::const_iterator i; |
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308 | for (i = (tf.sig_list).begin(); i != (tf.sig_list).end(); i++) { |
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309 | const signal2trace & s2t = *i; |
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310 | total_size += vcd_get_size(s2t); |
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311 | } |
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312 | return total_size; |
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313 | } |
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314 | |
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315 | |
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316 | static void vcd_alloc_signal_table(int size) { |
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317 | if (size == 0) { |
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318 | vcd_signal_table = NULL; |
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319 | } |
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320 | else { |
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321 | vcd_signal_table = (tab_t *) malloc(sizeof(tab_t) * size); |
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322 | } |
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323 | #ifdef CONFIG_DEBUG |
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324 | if (vcd_signal_table == NULL) { |
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325 | cerr << "Internal error : Unable to allocate memory for signal table to trace.\n"; |
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326 | exit(24032005); |
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327 | } |
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328 | #endif |
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329 | } |
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330 | |
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331 | |
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332 | static void vcd_bind_to_signal_table(sc_trace_file & tf) { |
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333 | tab_t * cur = vcd_signal_table; |
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334 | vector<signal2trace>::iterator i; |
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335 | for (i = (tf.sig_list).begin(); i != (tf.sig_list).end(); i++) { |
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336 | signal2trace & s2t = *i; |
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337 | s2t.pointer = cur; |
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338 | cur += vcd_get_size(s2t); |
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339 | #if 0 |
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340 | std::cout << s2t |
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341 | << "\nget_pointer () => " << hex << s2t.inter->get_pointer () |
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342 | << "\nvcd pointer () => " << hex << s2t.pointer |
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343 | << "\nvcd_get_size () => " << vcd_get_size (s2t) |
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344 | << "\n"; |
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345 | #endif |
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346 | } |
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347 | } |
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348 | |
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349 | |
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350 | static void vcd_build_signal_table(sc_trace_file & tf) { |
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351 | int s = vcd_get_signal_table_size(tf); |
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352 | vcd_alloc_signal_table(s); |
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353 | vcd_bind_to_signal_table(tf); |
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354 | } |
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355 | |
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356 | |
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357 | static void vcd_trace_init(sc_trace_file & tf) { |
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358 | init(tf); |
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359 | fprintf(tf.pfic,"$upscope $end\n$enddefinitions $end\n\n$comment\nAll initial values are dumped below at time 0 sec = 0 timescale units.\n$end\n\n$dumpvars\n"); |
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360 | vcd_build_signal_table(tf); |
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361 | |
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362 | // dump all var |
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363 | vector<signal2trace>::iterator i; |
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364 | for(i = (tf.sig_list).begin() ; i != (tf.sig_list).end(); i++) { |
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365 | vcd_trace(tf, *i, false); |
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366 | }//fin de la liste des signal2trace |
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367 | |
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368 | // clocks to trace |
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369 | vcd_trace_clocks(tf, true); |
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370 | |
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371 | if (cpt == trace_start) { |
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372 | fprintf(tf.pfic, "$end\n"); //fin du $dumpvars |
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373 | } |
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374 | } |
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375 | |
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376 | |
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377 | static void vcd_trace(sc_trace_file & tf, bool part) { |
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378 | if (sc_core::cpt == sc_core::trace_start) { |
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379 | if (part == false) { |
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380 | vcd_trace_init (tf); |
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381 | } |
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382 | } |
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383 | else { |
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384 | #if defined(CONFIG_DEBUG) |
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385 | if (vcd_signal_table == NULL) { |
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386 | cerr << "Internal Error : VCD signal table is not yet allocated.\n"; |
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387 | exit(1042005); |
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388 | } |
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389 | #endif |
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390 | vcd_print_cycle_number(tf.pfic,sc_core::cpt); |
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391 | // signals to trace |
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392 | if (part == false) { |
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393 | vector<signal2trace>::iterator i; |
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394 | for (i = tf.sig_list.begin(); i != tf.sig_list.end(); i++) { |
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395 | vcd_trace(tf, *i); |
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396 | }//fin de la liste des signal2trace |
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397 | } |
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398 | // clocks to trace |
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399 | vcd_trace_clocks(tf, !part); |
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400 | } |
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401 | } |
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402 | |
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403 | |
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404 | void trace(sc_trace_file & tf, bool part) { |
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405 | switch (tf.flag) { |
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406 | // fonction trace() pour VCD: |
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407 | case VCD_FORMAT: |
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408 | vcd_trace(tf, part); |
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409 | break; |
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410 | //fin de la fonction trace() pour VCD |
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411 | |
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412 | /*------------------------------------------------------------------------------------*/ |
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413 | |
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414 | // fonction trace() pour PAT: |
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415 | case PAT_FORMAT: |
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416 | pat_trace(tf, part); |
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417 | break; |
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418 | //fin de la fonction trace() pour PAT |
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419 | } |
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420 | // fin du switch format pour trace() |
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421 | |
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422 | } |
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423 | |
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424 | |
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425 | /*------------------------------------------------------------------------------------*/ |
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426 | |
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427 | |
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428 | static void vcd_sc_trace(sc_trace_file * tf, const signal2trace & t, const std::string & name) { |
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429 | //déclaration du signal dans l'en-tête du fichier VCD: |
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430 | // exemple de déclarations : |
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431 | // $var wire 1 aaa clk $end |
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432 | // $var wire 1 aab resetn $end |
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433 | // $var wire 1 aac _mips0_IT_5 $end |
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434 | |
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435 | std::string declaration; |
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436 | std::ostringstream buf; |
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437 | // begin |
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438 | declaration = "$var wire "; |
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439 | buf.width(4); |
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440 | buf << t.bit_size; |
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441 | declaration += buf.str(); |
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442 | declaration += " "; |
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443 | declaration += t.alias; |
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444 | declaration += " "; |
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445 | declaration += name; |
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446 | // bit range |
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447 | if (t.bit_size != 1) { |
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448 | declaration += " ["; |
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449 | std::ostringstream bit_size; |
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450 | bit_size << t.bit_size - 1; |
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451 | declaration += bit_size.str(); |
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452 | declaration += ":0]"; |
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453 | } |
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454 | // end |
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455 | declaration += " $end\n"; |
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456 | |
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457 | if ((fprintf(tf->pfic,declaration.c_str())) == 0) { |
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458 | cerr << "erreur ecriture de declaration du signal sc_signal\n"; |
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459 | exit(3); |
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460 | } |
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461 | } |
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462 | |
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463 | |
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464 | static void pat_sc_trace(sc_trace_file * tf, const signal2trace & t, const std::string & name) { |
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465 | #ifdef CONFIG_PAT_TRACE_FORMAT |
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466 | //exemple: |
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467 | //DECLAR ("a", ":2", "X", IN, "3 downto 0", "" ); |
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468 | //DECLAR ("b", ":2", "X", IN, "3 downto 0", "" ); |
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469 | //DECLAR ("vdd", ":2", "B", IN, "", "" ); |
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470 | |
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471 | std::string downto; |
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472 | const sc_object * obj = (const sc_object *) t.inter; |
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473 | const char * obj_kind = obj->kind(); |
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474 | char * format; |
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475 | char * dir; |
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476 | |
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477 | if (strstr(obj_kind, "inout")) |
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478 | dir = OUT; // Direction is OUT instead of INOUT |
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479 | // because port behavior is only seen as an output port. |
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480 | else if (strstr (obj_kind, "in")) { |
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481 | dir = IN; |
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482 | } |
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483 | else if (strstr (obj_kind, "out")) { |
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484 | dir = OUT; |
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485 | } |
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486 | else if (obj_kind == sc_clock::kind_string) { |
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487 | dir = SIGNAL; |
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488 | } |
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489 | else if (obj_kind == sc_signal_base::kind_string) { |
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490 | dir = REGISTER; |
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491 | } |
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492 | // to do : dir = REGISTER; |
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493 | // dir = SIGNAL; |
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494 | |
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495 | if (t.bit_size % 4 == 0) { |
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496 | format = "x"; |
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497 | } |
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498 | else { |
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499 | format = "b"; |
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500 | } |
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501 | |
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502 | if (t.bit_size == 1) { |
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503 | downto = ""; |
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504 | } |
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505 | else { |
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506 | std::ostringstream nbits; |
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507 | nbits << t.bit_size - 1; |
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508 | downto = nbits.str(); |
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509 | downto += " downto 0"; |
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510 | } |
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511 | |
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512 | #if 0 |
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513 | printf ("DECLAR (\"%s\", \":1\", \"%s\", %s, \"%s\", \"\" );\n", |
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514 | name.c_str (), |
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515 | format, |
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516 | dir, |
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517 | downto.c_str()); |
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518 | #endif |
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519 | DECLAR ((char *) (name.c_str()), ":1", format, dir, (char *) downto.c_str(), ""); |
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520 | #endif // CONFIG_PAT_TRACE_FORMAT |
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521 | } |
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522 | |
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523 | |
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524 | void sc_trace(sc_trace_file * tf, const signal2trace & t, const std::string & name) { |
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525 | if (tf == NULL) { |
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526 | return; |
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527 | } |
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528 | if (t.bit_size > 64) { |
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529 | cerr << "Warning : tracing functions do not support data types larger than 64 bits.\n"; |
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530 | } |
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531 | if (already_initialized) { |
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532 | cerr << "Warning : please call tracing functions BEFORE sc_initialize.\n"; |
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533 | } |
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534 | //ajout du signal dans la liste des signaux à tracer: |
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535 | (tf->sig_list).push_back(t); |
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536 | |
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537 | switch (tf->flag) { |
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538 | case VCD_FORMAT : |
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539 | vcd_sc_trace(tf, t, name); |
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540 | break; |
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541 | |
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542 | case PAT_FORMAT : |
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543 | pat_sc_trace(tf, t, name); |
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544 | break; |
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545 | default : |
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546 | { |
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547 | cerr << "Unknown trace format.\n"; |
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548 | exit(1); |
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549 | } |
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550 | }// fin switch format pour sc_trace |
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551 | |
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552 | } |
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553 | |
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554 | //---------------------------------------------------------------------------- |
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555 | |
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556 | #define DEF_SC_TRACE(T) /*inline \*/ \ |
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557 | void \ |
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558 | sc_trace (sc_trace_file* tf, const T& object, const std::string & name) \ |
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559 | { \ |
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560 | signal2trace t; \ |
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561 | sc_interface * inter = new sc_localvar< T > (object); \ |
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562 | t.inter = inter; \ |
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563 | t.alias = alias(); \ |
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564 | t.bit_size = get_bits_number(object); \ |
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565 | t.nomSig = name; \ |
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566 | sc_trace (tf, t, name); \ |
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567 | } |
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568 | |
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569 | |
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570 | DEF_SC_TRACE(bool) |
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571 | DEF_SC_TRACE(float) |
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572 | DEF_SC_TRACE(double) |
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573 | DEF_SC_TRACE(unsigned char) |
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574 | DEF_SC_TRACE(unsigned short) |
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575 | DEF_SC_TRACE(unsigned int) |
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576 | DEF_SC_TRACE(unsigned long) |
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577 | DEF_SC_TRACE(char) |
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578 | DEF_SC_TRACE(short) |
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579 | DEF_SC_TRACE(int) |
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580 | DEF_SC_TRACE(long) |
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581 | DEF_SC_TRACE(uint64) |
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582 | DEF_SC_TRACE(int64) |
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583 | |
---|
584 | #undef DEF_SC_TRACE |
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585 | |
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586 | //--------------------------------------------------------------------------- |
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587 | |
---|
588 | } // end of sc_core namespace |
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589 | |
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590 | |
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591 | /* |
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592 | # Local Variables: |
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593 | # tab-width: 4; |
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594 | # c-basic-offset: 4; |
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595 | # c-file-offsets:((innamespace . 0)(inline-open . 0)); |
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596 | # indent-tabs-mode: nil; |
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597 | # End: |
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598 | # |
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599 | # vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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600 | */ |
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601 | |
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