1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [synthUtil.c] |
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4 | |
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5 | PackageName [synth] |
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6 | |
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7 | Synopsis [Functions to get or to print some information.] |
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8 | |
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9 | Author [In-Ho Moon, Balakrishna Kumthekar] |
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10 | |
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11 | Copyright [This file was created at the University of Colorado at Boulder. |
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12 | The University of Colorado at Boulder makes no warranty about the suitability |
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13 | of this software for any purpose. It is presented on an AS IS basis.] |
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14 | |
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15 | ******************************************************************************/ |
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16 | |
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17 | #include "synthInt.h" |
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18 | |
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19 | static char rcsid[] UNUSED = "$Id: synthUtil.c,v 1.13 1998/08/19 22:51:49 mooni Exp $"; |
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20 | |
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21 | /*---------------------------------------------------------------------------*/ |
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22 | /* Constant declarations */ |
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23 | /*---------------------------------------------------------------------------*/ |
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24 | |
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25 | |
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26 | /*---------------------------------------------------------------------------*/ |
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27 | /* Type declarations */ |
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28 | /*---------------------------------------------------------------------------*/ |
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29 | |
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30 | |
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31 | /*---------------------------------------------------------------------------*/ |
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32 | /* Structure declarations */ |
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33 | /*---------------------------------------------------------------------------*/ |
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34 | |
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35 | |
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36 | /*---------------------------------------------------------------------------*/ |
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37 | /* Variable declarations */ |
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38 | /*---------------------------------------------------------------------------*/ |
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39 | |
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40 | /**AutomaticStart*************************************************************/ |
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41 | |
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42 | /*---------------------------------------------------------------------------*/ |
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43 | /* Static function prototypes */ |
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44 | /*---------------------------------------------------------------------------*/ |
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45 | |
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46 | static int GetChildTree(bdd_manager *dd, bdd_node *f, char *eq); |
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47 | static int GetChildMlTree(bdd_manager *dd, MlTree *tree, char *eq); |
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48 | static bdd_node * FindNodeWithIndex(bdd_node *node, int index); |
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49 | static void GetZddCoverWithNameRecur(Ntk_Network_t *net, bdd_manager *dd, bdd_node *node, char *cover); |
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50 | |
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51 | /**AutomaticEnd***************************************************************/ |
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52 | |
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53 | |
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54 | /*---------------------------------------------------------------------------*/ |
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55 | /* Definition of exported functions */ |
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56 | /*---------------------------------------------------------------------------*/ |
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57 | |
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58 | |
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59 | /*---------------------------------------------------------------------------*/ |
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60 | /* Definition of internal functions */ |
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61 | /*---------------------------------------------------------------------------*/ |
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62 | |
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63 | /**Function******************************************************************** |
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64 | |
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65 | Synopsis [Prints the equation form of a node with internal names.] |
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66 | |
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67 | Description [Prints the equation form of a node with internal names. |
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68 | If the string length is bigger than MAX_EQ_LEN, the string is truncated.] |
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69 | |
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70 | SideEffects [] |
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71 | |
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72 | SeeAlso [SynthPrintZddTreeMessage] |
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73 | |
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74 | ******************************************************************************/ |
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75 | void |
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76 | SynthPrintZddTree(bdd_manager *dd, |
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77 | bdd_node *f) |
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78 | { |
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79 | char eq[MAX_EQ_LEN]; |
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80 | |
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81 | GetChildTree(dd, f, eq); |
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82 | fprintf(vis_stdout, "%s\n", eq); |
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83 | } |
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84 | |
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85 | |
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86 | /**Function******************************************************************** |
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87 | |
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88 | Synopsis [Prints the equation form of a node with internal names, |
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89 | preceded by a message.] |
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90 | |
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91 | Description [Prints the equation form of a node with internal names, |
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92 | preceded by a message. If the string length is bigger than MAX_EQ_LEN, |
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93 | the string is truncated.] |
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94 | |
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95 | SideEffects [] |
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96 | |
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97 | SeeAlso [SynthPrintMlTreeMessage] |
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98 | |
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99 | ******************************************************************************/ |
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100 | void |
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101 | SynthPrintZddTreeMessage(bdd_manager *dd, |
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102 | bdd_node *f, |
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103 | char *mess) |
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104 | { |
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105 | char eq[MAX_EQ_LEN]; |
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106 | |
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107 | GetChildTree(dd, f, eq); |
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108 | fprintf(vis_stdout, "%s%s\n", mess, eq); |
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109 | } |
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110 | |
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111 | |
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112 | /**Function******************************************************************** |
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113 | |
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114 | Synopsis [Prints the equation form of a tree with internal names, |
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115 | preceded by a message.] |
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116 | |
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117 | Description [Prints the equation form of a tree with internal names, |
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118 | preceded by a message. If the string length is bigger than MAX_EQ_LEN, |
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119 | the string is truncated.] |
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120 | |
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121 | SideEffects [] |
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122 | |
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123 | SeeAlso [SynthPrintZddTreeMessage SynthPrintMlTreeWithName] |
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124 | |
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125 | ******************************************************************************/ |
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126 | void |
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127 | SynthPrintMlTreeMessage(bdd_manager *dd, |
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128 | MlTree *tree, |
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129 | char *mess) |
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130 | { |
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131 | char eq[MAX_EQ_LEN]; |
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132 | |
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133 | if (MlTree_IsComplement(tree)) { |
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134 | tree = MlTree_Regular(tree); |
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135 | GetChildMlTree(dd, tree, eq); |
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136 | (void) fprintf(vis_stdout, "%s%s'\n", mess, eq); |
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137 | } else { |
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138 | GetChildMlTree(dd, tree, eq); |
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139 | (void) fprintf(vis_stdout, "%s%s\n", mess, eq); |
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140 | } |
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141 | } |
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142 | |
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143 | |
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144 | /**Function******************************************************************** |
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145 | |
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146 | Synopsis [Frees a multi-level tree recursively.] |
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147 | |
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148 | Description [Frees a multi-level tree recursively. If the argument flag |
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149 | is set to 0, it does not free recursively.] |
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150 | |
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151 | SideEffects [] |
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152 | |
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153 | SeeAlso [] |
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154 | |
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155 | ******************************************************************************/ |
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156 | void |
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157 | SynthFreeMlTree(MlTree *tree, |
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158 | int flag) |
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159 | { |
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160 | if (!tree) |
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161 | return; |
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162 | |
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163 | if (tree->ref) { |
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164 | FREE(tree); |
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165 | return; |
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166 | } |
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167 | |
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168 | if (tree->support) |
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169 | FREE(tree->support); |
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170 | |
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171 | if (flag && tree->leaf == 0) { |
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172 | if (tree->q_ref == 0) |
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173 | SynthFreeMlTree(tree->q, flag); |
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174 | if (tree->d_ref == 0) |
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175 | SynthFreeMlTree(tree->d, flag); |
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176 | if (tree->r_ref == 0) |
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177 | SynthFreeMlTree(tree->r, flag); |
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178 | } |
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179 | |
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180 | FREE(tree); |
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181 | } |
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182 | |
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183 | |
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184 | /**Function******************************************************************** |
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185 | |
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186 | Synopsis [Prints the equation form of a tree with original names |
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187 | and preceded by a message.] |
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188 | |
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189 | Description [Prints the equation form of a tree with original names |
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190 | and preceded by a message. If the string length is bigger than |
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191 | MAX_EQ_LEN, the string is truncated.] |
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192 | |
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193 | SideEffects [] |
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194 | |
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195 | SeeAlso [SynthPrintMlTreeMessage] |
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196 | |
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197 | ******************************************************************************/ |
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198 | void |
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199 | SynthPrintMlTreeWithName(Ntk_Network_t *net, |
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200 | bdd_manager *dd, |
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201 | MlTree *tree, |
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202 | char *mess) |
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203 | { |
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204 | char eq[MAX_EQ_LEN]; |
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205 | |
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206 | SynthGetChildMlTreeWithName(net, dd, tree, eq); |
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207 | fprintf(vis_stdout, "%s%s\n", mess, eq); |
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208 | } |
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209 | |
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210 | |
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211 | /**Function******************************************************************** |
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212 | |
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213 | Synopsis [Gets the equation form of a tree with original names.] |
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214 | |
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215 | Description [Gets the equation form of a tree with original names.] |
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216 | |
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217 | SideEffects [] |
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218 | |
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219 | SeeAlso [SynthGetChildMlTree] |
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220 | |
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221 | ******************************************************************************/ |
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222 | int |
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223 | SynthGetChildMlTreeWithName(Ntk_Network_t *net, |
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224 | bdd_manager *dd, |
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225 | MlTree *tree, |
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226 | char *eq) |
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227 | { |
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228 | char q_eq[MAX_EQ_LEN]; |
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229 | char d_eq[MAX_EQ_LEN]; |
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230 | char r_eq[MAX_EQ_LEN]; |
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231 | char qd_eq[MAX_EQ_LEN]; |
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232 | bdd_node *one = bdd_read_one(dd); |
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233 | bdd_node *zero = bdd_read_zero(dd); |
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234 | bdd_node *f; |
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235 | int flag; |
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236 | |
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237 | f = tree->node; |
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238 | if (tree->leaf) { |
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239 | flag = SynthGetChildTreeWithName(net, dd, f, eq); |
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240 | return(flag); |
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241 | } |
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242 | |
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243 | if (f == one) { |
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244 | sprintf(eq, "one"); |
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245 | return(0); |
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246 | } else if (f == zero) { |
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247 | sprintf(eq, "zero"); |
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248 | return(0); |
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249 | } |
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250 | |
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251 | flag = SynthGetChildMlTreeWithName(net, dd, tree->q, q_eq); |
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252 | if (tree->q_comp) |
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253 | SynthMakeComplementString(q_eq); |
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254 | if (flag) |
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255 | return(1); |
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256 | flag = SynthGetChildMlTreeWithName(net, dd, tree->d, d_eq); |
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257 | if (tree->d_comp) |
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258 | SynthMakeComplementString(d_eq); |
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259 | if (flag) |
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260 | return(1); |
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261 | flag = SynthGetChildMlTreeWithName(net, dd, tree->r, r_eq); |
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262 | if (tree->r_comp) |
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263 | SynthMakeComplementString(r_eq); |
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264 | if (flag) |
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265 | return(1); |
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266 | |
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267 | if (strcmp(q_eq, "one") == 0) |
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268 | sprintf(qd_eq, "%s", d_eq); |
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269 | else if (strcmp(q_eq, "zero") == 0) |
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270 | sprintf(qd_eq, "zero"); |
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271 | else if (strcmp(d_eq, "one") == 0) |
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272 | sprintf(qd_eq, "%s", q_eq); |
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273 | else if (strcmp(d_eq, "zero") == 0) |
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274 | sprintf(qd_eq, "zero"); |
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275 | else { |
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276 | if (strlen(q_eq) + strlen(d_eq) + 1 > MAX_EQ_LEN) { |
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277 | sprintf(eq, "%s", q_eq); |
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278 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
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279 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
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280 | eq[MAX_EQ_LEN - 1] = '\0'; |
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281 | } else { |
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282 | eq[strlen(eq)] = '#'; /* truncated */ |
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283 | eq[strlen(eq) + 1] = '\0'; |
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284 | } |
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285 | return(1); |
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286 | } |
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287 | sprintf(qd_eq, "%s%s", q_eq, d_eq); |
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288 | } |
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289 | |
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290 | if (strcmp(r_eq, "zero") == 0) |
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291 | sprintf(eq, "%s", qd_eq); |
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292 | else { |
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293 | if (strlen(qd_eq) + strlen(r_eq) + 1 > MAX_EQ_LEN) { |
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294 | sprintf(eq, "%s", qd_eq); |
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295 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
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296 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
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297 | eq[MAX_EQ_LEN - 1] = '\0'; |
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298 | } else { |
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299 | eq[strlen(eq)] = '#'; /* truncated */ |
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300 | eq[strlen(eq) + 1] = '\0'; |
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301 | } |
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302 | return(1); |
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303 | } |
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304 | sprintf(eq, "(%s + %s)", qd_eq, r_eq); |
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305 | } |
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306 | return(0); |
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307 | } |
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308 | |
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309 | |
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310 | /**Function******************************************************************** |
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311 | |
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312 | Synopsis [Gets the equation form of a tree which is a leaf node with |
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313 | original names.] |
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314 | |
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315 | Description [Gets the equation form of a tree which is a leaf node with |
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316 | original names.] |
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317 | |
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318 | SideEffects [] |
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319 | |
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320 | SeeAlso [SynthGetChildTree] |
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321 | |
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322 | ******************************************************************************/ |
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323 | int |
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324 | SynthGetChildTreeWithName(Ntk_Network_t *net, |
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325 | bdd_manager *dd, |
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326 | bdd_node *f, |
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327 | char *eq) |
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328 | { |
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329 | char left[MAX_EQ_LEN]; |
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330 | char right[MAX_EQ_LEN]; |
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331 | bdd_node *one = bdd_read_one(dd); |
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332 | bdd_node *zero = bdd_read_zero(dd); |
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333 | int id, comp; |
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334 | char name[MAX_NAME_LEN]; |
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335 | int flag; |
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336 | |
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337 | if (f == one) { |
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338 | sprintf(eq, "one"); |
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339 | return(0); |
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340 | } else if (f == zero) { |
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341 | sprintf(eq, "zero"); |
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342 | return(0); |
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343 | } |
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344 | |
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345 | flag = SynthGetChildTreeWithName(net, dd, bdd_bdd_T(f), left); |
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346 | if (flag) |
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347 | return(1); |
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348 | flag = SynthGetChildTreeWithName(net, dd, bdd_bdd_E(f), right); |
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349 | if (flag) |
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350 | return(1); |
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351 | |
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352 | id = bdd_node_read_index(f); |
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353 | comp = id & 0x1; |
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354 | id = id >> 1; |
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355 | |
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356 | sprintf(name, "%s", Ntk_NodeReadName(Ntk_NetworkFindNodeByMddId(net, id))); |
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357 | |
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358 | if (comp) |
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359 | strcat(name, "'"); |
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360 | |
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361 | if (strcmp(left, "one") == 0) { |
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362 | if (strcmp(right, "zero") == 0) |
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363 | sprintf(eq, "%s", name); |
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364 | else { |
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365 | if (strlen(right) + strlen(name) + 6 > MAX_EQ_LEN) { |
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366 | sprintf(eq, "%s", right); |
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367 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
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368 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
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369 | eq[MAX_EQ_LEN - 1] = '\0'; |
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370 | } else { |
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371 | eq[strlen(eq)] = '#'; /* truncated */ |
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372 | eq[strlen(eq) + 1] = '\0'; |
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373 | } |
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374 | return(1); |
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375 | } |
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376 | sprintf(eq, "(%s + %s)", name, right); |
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377 | } |
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378 | } else { |
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379 | if (strcmp(right, "zero") == 0) { |
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380 | if (strlen(left) + strlen(name) + 1 > MAX_EQ_LEN) { |
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381 | sprintf(eq, "%s", left); |
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382 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
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383 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
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384 | eq[MAX_EQ_LEN - 1] = '\0'; |
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385 | } else { |
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386 | eq[strlen(eq)] = '#'; /* truncated */ |
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387 | eq[strlen(eq) + 1] = '\0'; |
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388 | } |
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389 | return(1); |
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390 | } |
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391 | sprintf(eq, "%s%s", name, left); |
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392 | } else { |
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393 | if (strlen(right) + strlen(left) + strlen(name) + 6 > |
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394 | MAX_EQ_LEN) { |
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395 | sprintf(eq, "%s", right); |
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396 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
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397 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
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398 | eq[MAX_EQ_LEN - 1] = '\0'; |
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399 | } else { |
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400 | eq[strlen(eq)] = '#'; /* truncated */ |
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401 | eq[strlen(eq) + 1] = '\0'; |
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402 | } |
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403 | return(1); |
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404 | } |
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405 | sprintf(eq, "(%s%s + %s)", name, left, right); |
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406 | } |
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407 | } |
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408 | return(0); |
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409 | } |
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410 | |
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411 | |
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412 | /**Function******************************************************************** |
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413 | |
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414 | Synopsis [Gets the original name of a primary node.] |
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415 | |
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416 | Description [Gets the original name of a primary node. Return value |
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417 | shows polarity; 0 means positive variable and 1 means negative.] |
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418 | |
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419 | SideEffects [] |
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420 | |
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421 | SeeAlso [] |
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422 | |
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423 | ******************************************************************************/ |
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424 | int |
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425 | SynthGetPrimaryNodeName(Ntk_Network_t *net, |
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426 | bdd_node *node, |
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427 | char *name) |
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428 | { |
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429 | int id; |
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430 | int comp; |
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431 | char *ntk_name; |
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432 | |
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433 | id = bdd_node_read_index(node); |
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434 | comp = id % 2; |
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435 | id = id >> 1; |
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436 | |
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437 | ntk_name = Ntk_NodeReadName(Ntk_NetworkFindNodeByMddId(net, id)); |
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438 | sprintf(name, "%s", ntk_name); |
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439 | |
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440 | return(comp); |
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441 | } |
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442 | |
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443 | |
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444 | /**Function******************************************************************** |
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445 | |
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446 | Synopsis [Gets the original name of a primary node with index.] |
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447 | |
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448 | Description [Gets the original name of a primary node with index.] |
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449 | |
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450 | SideEffects [] |
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451 | |
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452 | SeeAlso [] |
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453 | |
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454 | ******************************************************************************/ |
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455 | void |
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456 | SynthGetPrimaryIndexName(Ntk_Network_t *net, |
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457 | int index, |
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458 | char *name) |
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459 | { |
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460 | int id; |
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461 | |
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462 | id = index >> 1; |
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463 | sprintf(name, "%s", Ntk_NodeReadName(Ntk_NetworkFindNodeByMddId(net, id))); |
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464 | } |
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465 | |
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466 | |
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467 | /**Function******************************************************************** |
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468 | |
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469 | Synopsis [Prints the equation form of a ZDD cover with original names.] |
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470 | |
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471 | Description [Prints the equation form of a ZDD cover with original names. |
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472 | If the string length is bigger than MAX_EQ_LEN, the string is truncated.] |
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473 | |
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474 | SideEffects [] |
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475 | |
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476 | SeeAlso [] |
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477 | |
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478 | ******************************************************************************/ |
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479 | void |
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480 | SynthPrintZddCoverWithName(Ntk_Network_t *net, |
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481 | bdd_manager *dd, |
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482 | bdd_node *node) |
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483 | { |
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484 | char cover[MAX_EQ_LEN]; |
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485 | |
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486 | fprintf(vis_stdout, "cover ="); |
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487 | cover[0] = '\0'; |
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488 | GetZddCoverWithNameRecur(net, dd, node, cover); |
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489 | fprintf(vis_stdout, "\n"); |
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490 | } |
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491 | |
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492 | |
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493 | /**Function******************************************************************** |
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494 | |
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495 | Synopsis [Makes the complement name of a node name.] |
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496 | |
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497 | Description [Makes the complement name of a node name.] |
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498 | |
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499 | SideEffects [] |
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500 | |
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501 | SeeAlso [] |
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502 | |
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503 | ******************************************************************************/ |
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504 | void |
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505 | SynthMakeComplementString(char *eq) |
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506 | { |
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507 | int len; |
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508 | |
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509 | if (strcmp(eq, "zero") == 0) { |
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510 | sprintf(eq, "one"); |
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511 | return; |
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512 | } else if (strcmp(eq, "one") == 0) { |
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513 | sprintf(eq, "zero"); |
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514 | return; |
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515 | } |
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516 | len = strlen(eq); |
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517 | if (eq[len - 1] == '\'') |
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518 | eq[len - 1] = '\0'; |
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519 | else { |
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520 | if (len == MAX_EQ_LEN - 1) { |
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521 | eq[len - 2] = '#'; /* truncated */ |
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522 | eq[len - 1] = '\''; |
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523 | } else |
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524 | strcat(eq, "'"); |
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525 | } |
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526 | } |
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527 | |
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528 | |
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529 | /*---------------------------------------------------------------------------*/ |
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530 | /* Definition of static functions */ |
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531 | /*---------------------------------------------------------------------------*/ |
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532 | |
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533 | /**Function******************************************************************** |
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534 | |
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535 | Synopsis [Gets an equation form of a ZDD node.] |
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536 | |
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537 | Description [Gets an equation form of a ZDD node. Returns 1 if |
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538 | eq string is truncated, otherwise normally returns 0.] |
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539 | |
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540 | SideEffects [] |
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541 | |
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542 | SeeAlso [] |
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543 | |
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544 | ******************************************************************************/ |
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545 | static int |
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546 | GetChildTree(bdd_manager *dd, |
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547 | bdd_node *f, |
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548 | char *eq) |
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549 | { |
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550 | char left[MAX_EQ_LEN]; |
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551 | char right[MAX_EQ_LEN]; |
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552 | char tmp[MAX_NAME_LEN]; |
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553 | bdd_node *one = bdd_read_one(dd); |
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554 | bdd_node *zero = bdd_read_zero(dd); |
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555 | int flag; /* truncated */ |
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556 | |
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557 | if (f == one) { |
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558 | sprintf(eq, "one"); |
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559 | return(0); |
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560 | } else if (f == zero) { |
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561 | sprintf(eq, "zero"); |
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562 | return(0); |
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563 | } |
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564 | |
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565 | flag = GetChildTree(dd, bdd_bdd_T(f), left); |
---|
566 | if (flag) |
---|
567 | return(1); |
---|
568 | flag = GetChildTree(dd, bdd_bdd_E(f), right); |
---|
569 | if (flag) |
---|
570 | return(1); |
---|
571 | |
---|
572 | sprintf(tmp, "v%d", bdd_node_read_index(f)); |
---|
573 | if (strcmp(left, "one") == 0) { |
---|
574 | if (strcmp(right, "zero") == 0) |
---|
575 | sprintf(eq, "%s", tmp); |
---|
576 | else { |
---|
577 | if (strlen(right) + strlen(tmp) + 6 > MAX_EQ_LEN) { |
---|
578 | sprintf(eq, "%s", right); |
---|
579 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
580 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
581 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
582 | } else { |
---|
583 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
584 | eq[strlen(eq) + 1] = '\0'; |
---|
585 | } |
---|
586 | return(1); |
---|
587 | } |
---|
588 | sprintf(eq, "(%s + %s)", tmp, right); |
---|
589 | } |
---|
590 | } else { |
---|
591 | if (strcmp(right, "zero") == 0) { |
---|
592 | if (strlen(left) + strlen(tmp) + 1 > MAX_EQ_LEN) { |
---|
593 | sprintf(eq, "%s", left); |
---|
594 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
595 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
596 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
597 | } else { |
---|
598 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
599 | eq[strlen(eq) + 1] = '\0'; |
---|
600 | } |
---|
601 | return(1); |
---|
602 | } |
---|
603 | sprintf(eq, "%s%s", tmp, left); |
---|
604 | } else { |
---|
605 | if (strlen(right) + strlen(left) + strlen(tmp) + 6 > MAX_EQ_LEN) { |
---|
606 | sprintf(eq, "%s", right); |
---|
607 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
608 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
609 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
610 | } else { |
---|
611 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
612 | eq[strlen(eq) + 1] = '\0'; |
---|
613 | } |
---|
614 | return(1); |
---|
615 | } |
---|
616 | sprintf(eq, "(%s%s + %s)", tmp, left, right); |
---|
617 | } |
---|
618 | } |
---|
619 | return(0); |
---|
620 | } |
---|
621 | |
---|
622 | |
---|
623 | /**Function******************************************************************** |
---|
624 | |
---|
625 | Synopsis [Gets the equation form of a tree with internal name.] |
---|
626 | |
---|
627 | Description [Gets the equation form of a tree with internal name. Returns |
---|
628 | 1 if eq string is truncated, otherwise normally returns 0.] |
---|
629 | |
---|
630 | SideEffects [] |
---|
631 | |
---|
632 | SeeAlso [] |
---|
633 | |
---|
634 | ******************************************************************************/ |
---|
635 | static int |
---|
636 | GetChildMlTree(bdd_manager *dd, |
---|
637 | MlTree *tree, |
---|
638 | char *eq) |
---|
639 | { |
---|
640 | char q_eq[MAX_EQ_LEN]; |
---|
641 | char d_eq[MAX_EQ_LEN]; |
---|
642 | char r_eq[MAX_EQ_LEN]; |
---|
643 | char qd_eq[MAX_EQ_LEN]; |
---|
644 | bdd_node *one = bdd_read_one(dd); |
---|
645 | bdd_node *zero = bdd_read_zero(dd); |
---|
646 | bdd_node *f; |
---|
647 | int flag; |
---|
648 | |
---|
649 | f = tree->node; |
---|
650 | if (tree->leaf) { |
---|
651 | flag = GetChildTree(dd, f, eq); |
---|
652 | return(flag); |
---|
653 | } |
---|
654 | |
---|
655 | if (f == one) { |
---|
656 | sprintf(eq, "one"); |
---|
657 | return(0); |
---|
658 | } else if (f == zero) { |
---|
659 | sprintf(eq, "zero"); |
---|
660 | return(0); |
---|
661 | } |
---|
662 | |
---|
663 | flag = GetChildMlTree(dd, tree->q, q_eq); |
---|
664 | if (tree->q_comp) |
---|
665 | SynthMakeComplementString(q_eq); |
---|
666 | if (flag) |
---|
667 | return(1); |
---|
668 | flag = GetChildMlTree(dd, tree->d, d_eq); |
---|
669 | if (tree->d_comp) |
---|
670 | SynthMakeComplementString(d_eq); |
---|
671 | if (flag) |
---|
672 | return(1); |
---|
673 | flag = GetChildMlTree(dd, tree->r, r_eq); |
---|
674 | if (tree->r_comp) |
---|
675 | SynthMakeComplementString(r_eq); |
---|
676 | if (flag) |
---|
677 | return(1); |
---|
678 | |
---|
679 | if (strcmp(q_eq, "one") == 0) |
---|
680 | sprintf(qd_eq, "%s", d_eq); |
---|
681 | else if (strcmp(q_eq, "zero") == 0) |
---|
682 | sprintf(qd_eq, "zero"); |
---|
683 | else if (strcmp(d_eq, "one") == 0) |
---|
684 | sprintf(qd_eq, "%s", q_eq); |
---|
685 | else if (strcmp(d_eq, "zero") == 0) |
---|
686 | sprintf(qd_eq, "zero"); |
---|
687 | else { |
---|
688 | if (strlen(q_eq) + strlen(d_eq) + 1 > MAX_EQ_LEN) { |
---|
689 | sprintf(eq, "%s", q_eq); |
---|
690 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
691 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
692 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
693 | } else { |
---|
694 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
695 | eq[strlen(eq) + 1] = '\0'; |
---|
696 | } |
---|
697 | return(1); |
---|
698 | } |
---|
699 | sprintf(qd_eq, "%s%s", q_eq, d_eq); |
---|
700 | } |
---|
701 | |
---|
702 | if (strcmp(r_eq, "zero") == 0) |
---|
703 | sprintf(eq, "%s", qd_eq); |
---|
704 | else { |
---|
705 | if (strlen(qd_eq) + strlen(r_eq) + 1 > MAX_EQ_LEN) { |
---|
706 | sprintf(eq, "%s", qd_eq); |
---|
707 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
708 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
709 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
710 | } else { |
---|
711 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
712 | eq[strlen(eq) + 1] = '\0'; |
---|
713 | } |
---|
714 | return(1); |
---|
715 | } |
---|
716 | sprintf(eq, "(%s + %s)", qd_eq, r_eq); |
---|
717 | } |
---|
718 | return(0); |
---|
719 | } |
---|
720 | |
---|
721 | |
---|
722 | /**Function******************************************************************** |
---|
723 | |
---|
724 | Synopsis [Finds a node that has the given index.] |
---|
725 | |
---|
726 | Description [Finds a node that has the given index among the descendants |
---|
727 | of the given node (this node included). If there exists a node with |
---|
728 | the index, the node is returned, otherwise returns NULL.] |
---|
729 | |
---|
730 | SideEffects [] |
---|
731 | |
---|
732 | SeeAlso [] |
---|
733 | |
---|
734 | ******************************************************************************/ |
---|
735 | static bdd_node * |
---|
736 | FindNodeWithIndex(bdd_node *node, |
---|
737 | int index) |
---|
738 | { |
---|
739 | bdd_node *tmp; |
---|
740 | |
---|
741 | if (bdd_is_constant(node)) |
---|
742 | return(NULL); |
---|
743 | if (bdd_node_read_index(node) == index) |
---|
744 | return(node); |
---|
745 | |
---|
746 | tmp = FindNodeWithIndex(bdd_bdd_T(node), index); |
---|
747 | if (tmp) |
---|
748 | return(tmp); |
---|
749 | return(FindNodeWithIndex(bdd_bdd_E(node), index)); |
---|
750 | } |
---|
751 | |
---|
752 | |
---|
753 | /**Function******************************************************************** |
---|
754 | |
---|
755 | Synopsis [Gets the equation form of a ZDD cover with original names.] |
---|
756 | |
---|
757 | Description [Gets an equation form of a ZDD cover with original names.] |
---|
758 | |
---|
759 | SideEffects [] |
---|
760 | |
---|
761 | SeeAlso [] |
---|
762 | |
---|
763 | ******************************************************************************/ |
---|
764 | static void |
---|
765 | GetZddCoverWithNameRecur(Ntk_Network_t *net, |
---|
766 | bdd_manager *dd, |
---|
767 | bdd_node *node, |
---|
768 | char *cover) |
---|
769 | { |
---|
770 | bdd_node *one = bdd_read_one(dd); |
---|
771 | bdd_node *zero = bdd_read_zero(dd); |
---|
772 | int len, index; |
---|
773 | char name[MAX_NAME_LEN], *varName; |
---|
774 | |
---|
775 | if (node == zero) |
---|
776 | return; |
---|
777 | |
---|
778 | if (node == one) { |
---|
779 | fprintf(vis_stdout, " + %s", cover); |
---|
780 | return; |
---|
781 | } |
---|
782 | |
---|
783 | len = strlen(cover); |
---|
784 | index = bdd_node_read_index(node); |
---|
785 | varName = Ntk_NodeReadName(Ntk_NetworkFindNodeByMddId(net, index / 2)); |
---|
786 | if (index % 2 == 0) |
---|
787 | sprintf(name, "%s", varName); |
---|
788 | else |
---|
789 | sprintf(name, "%s'", varName); |
---|
790 | strcat(cover, name); |
---|
791 | GetZddCoverWithNameRecur(net, dd, bdd_bdd_T(node), cover); |
---|
792 | cover[len] = '\0'; |
---|
793 | GetZddCoverWithNameRecur(net, dd, bdd_bdd_E(node), cover); |
---|
794 | cover[len] = '\0'; |
---|
795 | } |
---|
796 | |
---|
797 | |
---|