1 | /**CFile*********************************************************************** |
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2 | |
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3 | FileName [synthWrite.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 write blif file and equation file.] |
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8 | |
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9 | Description [] |
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10 | |
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11 | Author [In-Ho Moon, Balakrishna Kumthekar] |
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12 | |
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13 | Copyright [This file was created at the University of Colorado at Boulder. |
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14 | The University of Colorado at Boulder makes no warranty about the suitability |
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15 | of this software for any purpose. It is presented on an AS IS basis.] |
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16 | |
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17 | ******************************************************************************/ |
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18 | |
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19 | #include "synthInt.h" |
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20 | |
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21 | static char rcsid[] UNUSED = "$Id: synthWrite.c,v 1.43 2005/05/11 20:18:39 hhhan Exp $"; |
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22 | |
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23 | /*---------------------------------------------------------------------------*/ |
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24 | /* Constant declarations */ |
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25 | /*---------------------------------------------------------------------------*/ |
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26 | |
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27 | |
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28 | /*---------------------------------------------------------------------------*/ |
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29 | /* Type declarations */ |
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30 | /*---------------------------------------------------------------------------*/ |
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31 | |
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32 | |
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33 | /*---------------------------------------------------------------------------*/ |
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34 | /* Structure declarations */ |
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35 | /*---------------------------------------------------------------------------*/ |
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36 | |
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37 | /**Struct********************************************************************** |
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38 | |
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39 | Synopsis [Type to store a line of the truth table of a node. |
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40 | The entire truth table is implemented as a linked list of |
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41 | objects of this type.] |
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42 | |
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43 | Description [] |
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44 | |
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45 | SeeAlso [] |
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46 | |
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47 | ******************************************************************************/ |
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48 | typedef struct TruthTableLine { |
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49 | char *values; /* string of 1, 0, and - */ |
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50 | struct TruthTableLine *next; /* pointer to next table line */ |
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51 | } TruthTableLine; |
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52 | |
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53 | |
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54 | /*---------------------------------------------------------------------------*/ |
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55 | /* Variable declarations */ |
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56 | /*---------------------------------------------------------------------------*/ |
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57 | |
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58 | static char *DefaultPrefix = "_n"; |
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59 | static char *InternalNodePrefix; |
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60 | static st_table *NodeNameTable; /* to keep all node names for |
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61 | * primary input, primary output |
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62 | * latch input and output |
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63 | */ |
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64 | |
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65 | /**AutomaticStart*************************************************************/ |
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66 | |
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67 | /*---------------------------------------------------------------------------*/ |
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68 | /* Static function prototypes */ |
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69 | /*---------------------------------------------------------------------------*/ |
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70 | |
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71 | static void WriteMlBlif(Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, FILE *fout, int no, bdd_node **ofuncs, int *oflags, int top_flag, int verbosity); |
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72 | static void WriteLeafMlBlif(Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, FILE *fout, int no, bdd_node **ofuncs, int *oflags, int top_flag, int verbosity); |
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73 | static void WriteBlifBinary(bdd_manager *dd, bdd_node *node, char *name, FILE *fout, int *support); |
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74 | static void WriteEqnOfTree(FILE *fout, Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, bdd_node **ofuncs); |
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75 | static int GetEqnOfTree(Ntk_Network_t *net, bdd_manager *dd, MlTree *top, MlTree *tree, char *eq, bdd_node **ofuncs); |
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76 | static void WriteMlTreeBlif(FILE *fout, Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, bdd_node **ofuncs, int no, char *func_name, int ref); |
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77 | static void WriteMultiLevelBlif(FILE *fout, Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, bdd_node **ofuncs, int no); |
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78 | static TruthTableLine * GetMultiLevelBlifRecur(Ntk_Network_t *net, bdd_manager *dd, MlTree *top, MlTree *tree, bdd_node **ofuncs, int no, st_table *table, int ni); |
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79 | static int GetMultiLevelNodes(Ntk_Network_t *net, bdd_manager *dd, MlTree *top, MlTree *tree, bdd_node **ofuncs, int no, st_table *table, int ni); |
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80 | static int GetLeafNodes(Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, bdd_node **ofuncs, int no, st_table *table, int ni); |
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81 | static TruthTableLine * GetTautologyLine(int ni); |
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82 | static TruthTableLine * GetLeafLines(Ntk_Network_t *net, bdd_manager *dd, MlTree *tree, bdd_node **ofuncs, int no, st_table *table, int ni); |
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83 | static TruthTableLine * GetBlifBinary(TruthTableLine *line, bdd_manager *dd, bdd_node *node, char *values, int *support, int ni); |
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84 | static TruthTableLine * GetComplementOneLine(TruthTableLine *line, int ni, int flag); |
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85 | static TruthTableLine * GetComplementLines(TruthTableLine *lines, int ni, int flag); |
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86 | static TruthTableLine * GetAndLines(TruthTableLine *line1, TruthTableLine *line2, int ni, int flag); |
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87 | static bdd_node * GetDdNodeOfMlTree(MlTree *tree, int comp); |
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88 | static int GetMlTreeName(Ntk_Network_t *net, bdd_node **ofuncs, MlTree *tree, char *name); |
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89 | static char ** GetAllVarNameArray(bdd_manager *dd); |
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90 | |
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91 | /**AutomaticEnd***************************************************************/ |
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92 | |
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93 | |
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94 | /*---------------------------------------------------------------------------*/ |
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95 | /* Definition of exported functions */ |
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96 | /*---------------------------------------------------------------------------*/ |
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97 | |
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98 | |
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99 | /*---------------------------------------------------------------------------*/ |
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100 | /* Definition of internal functions */ |
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101 | /*---------------------------------------------------------------------------*/ |
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102 | |
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103 | |
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104 | /**Function******************************************************************** |
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105 | |
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106 | Synopsis [Compares two strings to see which one is first in |
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107 | alphabetic order.] |
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108 | |
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109 | Description [Compares two strings to see which one is first in |
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110 | alphabetic order.] |
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111 | |
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112 | SideEffects [] |
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113 | |
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114 | SeeAlso [qsort] |
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115 | |
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116 | ******************************************************************************/ |
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117 | int |
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118 | SynthStringCompare(char **a, |
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119 | char **b) |
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120 | { |
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121 | char *pa, *pb; |
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122 | |
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123 | pa = *a; |
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124 | pb = *b; |
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125 | |
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126 | if (*pa == '\0') { |
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127 | if (*pb == '\0') |
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128 | return(0); |
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129 | else |
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130 | return(-1); |
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131 | } else if (*pb == '\0') |
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132 | return(1); |
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133 | while (*pa != '\0' && *pb != '\0') { |
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134 | if (*pa > *pb) |
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135 | return(1); |
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136 | if (*pa < *pb) |
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137 | return(-1); |
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138 | pa++; |
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139 | pb++; |
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140 | if (*pa == '\0') { |
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141 | if (*pb == '\0') |
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142 | return(0); |
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143 | else |
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144 | return(-1); |
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145 | } else if (*pb == '\0') |
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146 | return(1); |
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147 | } |
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148 | return(0); |
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149 | } |
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150 | |
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151 | |
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152 | /**Function******************************************************************** |
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153 | |
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154 | Synopsis [Write a blif file of the factorized network.] |
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155 | |
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156 | Description [Write a blif file of the factorized network. There are 2 |
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157 | ways of writing a blif file depending on argument ml_mode. If |
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158 | ml_mode is 0, then the resulting blif file will be based on the |
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159 | factorized multi level tree that has 3 children; quotient, divisor, |
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160 | and remainder. If ml_mode is 1, then the resulting blif file will be |
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161 | generated as follows. All top nodes and all nodes that are shared will |
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162 | be output nodes of .names in blif file. By default, ml_mode is 0.] |
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163 | |
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164 | SideEffects [] |
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165 | |
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166 | SeeAlso [] |
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167 | |
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168 | ******************************************************************************/ |
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169 | void |
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170 | SynthWriteBlifFile(Ntk_Network_t *net, |
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171 | bdd_manager *dd, |
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172 | MlTree **tree, |
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173 | char *filename, |
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174 | int no, |
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175 | bdd_node **ofuncs, |
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176 | int *initStates, |
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177 | int ml_mode, |
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178 | int verbosity) |
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179 | { |
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180 | FILE *fout; |
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181 | int i, j; |
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182 | int *oflags; |
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183 | char out_name[MAX_NAME_LEN], name[MAX_NAME_LEN]; |
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184 | lsGen gen; |
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185 | Ntk_Node_t *node; |
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186 | char **sorted_name; |
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187 | int ni, po; |
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188 | int polarity; |
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189 | |
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190 | fout = Cmd_FileOpen(filename, "w", NIL(char *), 0); |
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191 | if (!fout) { |
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192 | (void)fprintf(vis_stdout, |
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193 | "** synth error: Error in opening file [%s]\n", filename); |
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194 | return; |
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195 | } |
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196 | |
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197 | fprintf(fout, ".model %s\n", Ntk_NetworkReadName(net)); |
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198 | fprintf(fout, ".inputs"); |
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199 | |
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200 | /* Write list of primary inputs sorted lexicographically. */ |
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201 | ni = Ntk_NetworkReadNumPrimaryInputs(net); |
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202 | sorted_name = ALLOC(char *, ni * sizeof(char *)); |
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203 | i = 0; |
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204 | Ntk_NetworkForEachPrimaryInput(net, gen, node) { |
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205 | sorted_name[i++] = Ntk_NodeReadName(node); |
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206 | } |
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207 | qsort(sorted_name, ni, sizeof(char *), |
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208 | (int (*)(const void *, const void *)) SynthStringCompare); |
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209 | for (i = 0; i < ni; i++) |
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210 | fprintf(fout," %s", sorted_name[i]); |
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211 | FREE(sorted_name); |
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212 | |
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213 | fprintf(fout, "\n"); |
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214 | fprintf(fout, ".outputs"); |
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215 | |
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216 | /* Write list of primary outputs sorted lexicographically. */ |
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217 | po = Ntk_NetworkReadNumPrimaryOutputs(net); |
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218 | sorted_name = ALLOC(char *, po * sizeof(char *)); |
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219 | i = 0; |
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220 | Ntk_NetworkForEachPrimaryOutput(net, gen, node) { |
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221 | sorted_name[i++] = Ntk_NodeReadName(node); |
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222 | } |
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223 | qsort(sorted_name, po, sizeof(char *), |
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224 | (int (*)(const void *, const void *))SynthStringCompare); |
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225 | for (i = 0; i < po; i++) |
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226 | fprintf(fout," %s", sorted_name[i]); |
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227 | FREE(sorted_name); |
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228 | fprintf(fout, "\n"); |
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229 | |
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230 | /* Print list of latches. */ |
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231 | i = 0; |
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232 | Ntk_NetworkForEachLatch(net, gen, node) { |
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233 | fprintf(fout,".latch %s", Ntk_NodeReadName(Ntk_LatchReadDataInput(node))); |
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234 | fprintf(fout, " %s", Ntk_NodeReadName(node)); |
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235 | fprintf(fout, " %d\n", initStates[i]); |
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236 | i++; |
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237 | } |
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238 | |
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239 | oflags = ALLOC(int, no); |
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240 | (void)memset((void *)oflags, 0, no * sizeof(int)); |
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241 | for (i = 0; i < no; i++) { |
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242 | if (!tree[i]) |
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243 | continue; |
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244 | if (bdd_is_constant(tree[i]->node)) { |
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245 | if (tree[i]->comp) { |
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246 | for (j = 0; j < no; j++) { |
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247 | if (tree[i]->complement == ofuncs[j] && oflags[j] == 0) { |
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248 | sprintf(out_name, "%s", SynthGetIthOutputName(j)); |
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249 | break; |
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250 | } |
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251 | } |
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252 | } else { |
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253 | for (j = 0; j < no; j++) { |
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254 | if (tree[i]->node == ofuncs[j] && oflags[j] == 0) { |
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255 | sprintf(out_name, "%s", SynthGetIthOutputName(j)); |
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256 | break; |
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257 | } |
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258 | } |
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259 | } |
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260 | if (j == no) |
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261 | SynthGetInternalNodeName(out_name, tree[i]->id); |
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262 | else { |
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263 | if (oflags[j]) |
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264 | continue; |
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265 | else |
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266 | oflags[j] = 1; |
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267 | } |
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268 | fprintf(fout, "\n.names %s\n", out_name); |
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269 | if (tree[i]->node == bdd_read_one(dd)) { |
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270 | if (tree[i]->comp) |
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271 | fprintf(fout, "0\n"); |
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272 | else |
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273 | fprintf(fout, "1\n"); |
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274 | } else { |
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275 | if (tree[i]->comp) |
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276 | fprintf(fout, "1\n"); |
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277 | else |
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278 | fprintf(fout, "0\n"); |
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279 | } |
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280 | continue; |
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281 | } else if (tree[i]->ref) { |
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282 | for (j = 0; j < no; j++) { |
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283 | if ((((tree[i]->comp == 0 && tree[i]->node == ofuncs[j]) || |
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284 | (tree[i]->comp && tree[i]->complement == ofuncs[j]))) && |
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285 | oflags[j] == 0) { |
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286 | sprintf(out_name, "%s", SynthGetIthOutputName(j)); |
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287 | break; |
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288 | } |
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289 | } |
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290 | if (j == no) |
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291 | SynthGetInternalNodeName(out_name, tree[i]->id); |
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292 | else { |
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293 | if (oflags[j]) |
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294 | continue; |
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295 | else |
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296 | oflags[j] = 1; |
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297 | } |
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298 | polarity = GetMlTreeName(net, ofuncs, tree[i], name); |
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299 | if (strcmp(out_name, name) == 0) |
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300 | SynthGetPrimaryNodeName(net, tree[i]->node, name); |
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301 | fprintf(fout, "\n.names %s %s\n", name, out_name); |
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302 | if (polarity == 0) { |
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303 | if (tree[i]->comp) |
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304 | fprintf(fout, "0 1\n"); |
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305 | else |
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306 | fprintf(fout, "1 1\n"); |
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307 | } else { |
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308 | if (tree[i]->comp) |
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309 | fprintf(fout, "1 1\n"); |
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310 | else |
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311 | fprintf(fout, "0 1\n"); |
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312 | } |
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313 | continue; |
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314 | } |
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315 | if (ml_mode == 0) { |
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316 | if (tree[i]->pi) { |
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317 | tree[i]->pi = 0; |
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318 | WriteMlBlif(net, dd, tree[i], fout, no, ofuncs, oflags, 1, verbosity); |
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319 | tree[i]->pi = 1; |
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320 | } else { |
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321 | WriteMlBlif(net, dd, tree[i], fout, no, ofuncs, oflags, 1, verbosity); |
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322 | } |
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323 | } else { |
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324 | for (j = 0; j < no; j++) { |
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325 | if (tree[i]->node == ofuncs[j]) { |
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326 | if (oflags[j]) |
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327 | continue; |
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328 | else |
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329 | oflags[j] = 1; |
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330 | sprintf(out_name, "%s", SynthGetIthOutputName(j)); |
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331 | break; |
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332 | } |
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333 | } |
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334 | if (j == no) |
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335 | SynthGetInternalNodeName(out_name, tree[i]->id); |
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336 | if (tree[i]->pi) { |
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337 | tree[i]->pi = 0; |
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338 | WriteMlTreeBlif(fout, net, dd, tree[i], ofuncs, no, out_name, 1); |
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339 | tree[i]->pi = 1; |
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340 | } else { |
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341 | WriteMlTreeBlif(fout, net, dd, tree[i], ofuncs, no, out_name, 1); |
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342 | } |
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343 | } |
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344 | } |
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345 | FREE(oflags); |
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346 | |
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347 | fprintf(fout, "\n.end\n"); |
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348 | fclose(fout); |
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349 | } |
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350 | |
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351 | |
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352 | /**Function******************************************************************** |
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353 | |
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354 | Synopsis [Writes header of equation format for a network.] |
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355 | |
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356 | Description [Writes header of equation format for a network.] |
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357 | |
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358 | SideEffects [] |
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359 | |
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360 | SeeAlso [] |
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361 | |
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362 | ******************************************************************************/ |
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363 | void |
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364 | SynthWriteEqnHeader(FILE *fout, |
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365 | Ntk_Network_t *net, |
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366 | bdd_manager *dd) |
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367 | { |
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368 | int i; |
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369 | lsGen gen; |
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370 | Ntk_Node_t *node; |
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371 | char **sorted_name; |
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372 | int ni, po; |
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373 | |
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374 | /* Write list of primary inputs sorted lexicographically. */ |
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375 | ni = Ntk_NetworkReadNumPrimaryInputs(net); |
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376 | sorted_name = ALLOC(char *, ni * sizeof(char *)); |
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377 | i = 0; |
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378 | Ntk_NetworkForEachPrimaryInput(net, gen, node) { |
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379 | sorted_name[i++] = Ntk_NodeReadName(node); |
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380 | } |
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381 | qsort(sorted_name, ni, sizeof(char *), |
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382 | (int (*)(const void *, const void *))SynthStringCompare); |
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383 | fprintf(fout, "INORDER"); |
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384 | for (i = 0; i < ni; i++) |
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385 | fprintf(fout," %s", sorted_name[i]); |
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386 | fprintf(fout, "\n"); |
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387 | FREE(sorted_name); |
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388 | |
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389 | /* Write list of primary outputs sorted lexicographically. */ |
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390 | po = Ntk_NetworkReadNumPrimaryOutputs(net); |
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391 | sorted_name = ALLOC(char *, po * sizeof(char *)); |
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392 | i = 0; |
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393 | Ntk_NetworkForEachPrimaryOutput(net, gen, node) { |
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394 | sorted_name[i++] = Ntk_NodeReadName(node); |
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395 | } |
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396 | qsort(sorted_name, po, sizeof(char *), |
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397 | (int (*)(const void *, const void *))SynthStringCompare); |
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398 | fprintf(fout, "OUTORDER"); |
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399 | for (i = 0; i < po; i++) |
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400 | fprintf(fout," %s", sorted_name[i]); |
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401 | fprintf(fout, "\n"); |
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402 | FREE(sorted_name); |
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403 | } |
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404 | |
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405 | |
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406 | /**Function******************************************************************** |
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407 | |
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408 | Synopsis [Writes an equation of a factorized tree.] |
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409 | |
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410 | Description [Writes an equation of a factorized tree.] |
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411 | |
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412 | SideEffects [] |
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413 | |
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414 | SeeAlso [] |
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415 | |
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416 | ******************************************************************************/ |
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417 | void |
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418 | SynthWriteEqn(FILE *fout, |
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419 | Ntk_Network_t *net, |
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420 | bdd_manager *dd, |
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421 | MlTree *tree, |
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422 | bdd_node **ofuncs, |
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423 | char *func_name, |
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424 | int ref) |
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425 | { |
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426 | char name[MAX_NAME_LEN]; |
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427 | int polarity = 0; |
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428 | |
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429 | if (tree->top || tree->shared) { |
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430 | if (ref) { |
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431 | /* If tree is shared we print the name of the original function |
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432 | * unless it is a constant. |
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433 | */ |
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434 | if (tree->ref) { |
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435 | if (tree->node == bdd_read_zero(dd)) |
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436 | sprintf(name, "zero"); |
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437 | else if (tree->node == bdd_read_one(dd)) |
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438 | sprintf(name, "one"); |
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439 | else |
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440 | polarity = GetMlTreeName(net, ofuncs, tree, name); |
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441 | if (polarity == 0) { |
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442 | if (tree->comp) |
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443 | SynthMakeComplementString(name); |
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444 | } else { |
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445 | if (!tree->comp) |
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446 | SynthMakeComplementString(name); |
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447 | } |
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448 | fprintf(fout, "%s = %s\n", func_name, name); |
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449 | return; |
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450 | } |
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451 | } |
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452 | WriteEqnOfTree(fout, net, dd, tree, ofuncs); |
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453 | } |
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454 | |
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455 | if (tree->leaf) { |
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456 | return; |
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457 | } |
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458 | |
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459 | if (tree->q_ref == 0) |
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460 | SynthWriteEqn(fout, net, dd, tree->q, ofuncs, NULL, ref); |
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461 | if (tree->d_ref == 0) |
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462 | SynthWriteEqn(fout, net, dd, tree->d, ofuncs, NULL, ref); |
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463 | if (tree->r_ref == 0) |
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464 | SynthWriteEqn(fout, net, dd, tree->r, ofuncs, NULL, ref); |
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465 | } |
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466 | |
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467 | |
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468 | /**Function******************************************************************** |
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469 | |
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470 | Synopsis [Set the prefix of internal node name.] |
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471 | |
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472 | Description [Set the prefix of internal node name.] |
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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 | SynthSetInternalNodePrefix(char *prefix) |
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481 | { |
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482 | if (prefix) |
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483 | InternalNodePrefix = prefix; |
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484 | else |
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485 | InternalNodePrefix = DefaultPrefix; |
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486 | } |
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487 | |
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488 | |
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489 | /**Function******************************************************************** |
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490 | |
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491 | Synopsis [Creates a st_table to keep all node names for primary |
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492 | input, primary output, latch input and output nodes.] |
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493 | |
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494 | Description [Creates a st_table to keep all node names for primary |
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495 | input, primary output, latch input and output nodes. This table is used |
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496 | when we make internal node names, to see if there is a same name.] |
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497 | |
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498 | SideEffects [] |
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499 | |
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500 | SeeAlso [SynthFreeNodeNameTable SynthGetInternalNodeName] |
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501 | |
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502 | ******************************************************************************/ |
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503 | void |
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504 | SynthSetupNodeNameTable(Ntk_Network_t *net) |
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505 | { |
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506 | lsGen gen; |
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507 | Ntk_Node_t *node; |
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508 | |
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509 | if (NodeNameTable) { |
---|
510 | (void)fprintf(vis_stdout, |
---|
511 | "** synth warning: table already exists in SynthSetupNodeNameTable.\n"); |
---|
512 | st_free_table(NodeNameTable); |
---|
513 | } |
---|
514 | |
---|
515 | NodeNameTable = st_init_table(strcmp, st_strhash); |
---|
516 | |
---|
517 | /* Register all primary input node names. */ |
---|
518 | Ntk_NetworkForEachPrimaryInput(net, gen, node) { |
---|
519 | st_insert(NodeNameTable, Ntk_NodeReadName(node), (char *)NULL); |
---|
520 | } |
---|
521 | |
---|
522 | /* Register all primary output node names. */ |
---|
523 | Ntk_NetworkForEachPrimaryOutput(net, gen, node) { |
---|
524 | st_insert(NodeNameTable, Ntk_NodeReadName(node), (char *)NULL); |
---|
525 | } |
---|
526 | |
---|
527 | /* Register all latch input and output node names. */ |
---|
528 | Ntk_NetworkForEachLatch(net, gen, node) { |
---|
529 | st_insert(NodeNameTable, Ntk_NodeReadName(Ntk_LatchReadDataInput(node)), |
---|
530 | (char *)NULL); |
---|
531 | st_insert(NodeNameTable, Ntk_NodeReadName(node), (char *)NULL); |
---|
532 | } |
---|
533 | } |
---|
534 | |
---|
535 | |
---|
536 | /**Function******************************************************************** |
---|
537 | |
---|
538 | Synopsis [Frees the st_table named NodeNameTable.] |
---|
539 | |
---|
540 | Description [Frees the st_table named NodeNameTable.] |
---|
541 | |
---|
542 | SideEffects [] |
---|
543 | |
---|
544 | SeeAlso [SynthSetupNodeNameTable SynthGetInternalNodeName] |
---|
545 | |
---|
546 | ******************************************************************************/ |
---|
547 | void |
---|
548 | SynthFreeNodeNameTable(void) |
---|
549 | { |
---|
550 | st_free_table(NodeNameTable); |
---|
551 | NodeNameTable = NIL(st_table); |
---|
552 | } |
---|
553 | |
---|
554 | |
---|
555 | /**Function******************************************************************** |
---|
556 | |
---|
557 | Synopsis [Returns a proper internal node name.] |
---|
558 | |
---|
559 | Description [Returns a proper internal node name. Internal node name |
---|
560 | is made by "prefix+id". If NodeNameTable exists, fist lookup the table |
---|
561 | to see if the name already exists. If it exists, another prefix |
---|
562 | "_synth_" is used. Then, whenever a same name exists, extra prefix "_" |
---|
563 | is used.] |
---|
564 | |
---|
565 | SideEffects [] |
---|
566 | |
---|
567 | SeeAlso [SynthSetupNodeNameTable SynthFreeNodeNameTable] |
---|
568 | |
---|
569 | ******************************************************************************/ |
---|
570 | void |
---|
571 | SynthGetInternalNodeName(char *name, int id) |
---|
572 | { |
---|
573 | sprintf(name, "%s%d", InternalNodePrefix, id); |
---|
574 | if (NodeNameTable) { |
---|
575 | if (st_lookup(NodeNameTable, name, NIL(char *))) { |
---|
576 | int pos; |
---|
577 | |
---|
578 | sprintf(name, "_synth_%s%d", InternalNodePrefix, id); |
---|
579 | pos = 7; /* _synth_ */ |
---|
580 | while (st_lookup(NodeNameTable, name, NIL(char *))) { |
---|
581 | sprintf(&name[pos], "_%s%d", InternalNodePrefix, id); |
---|
582 | pos++; |
---|
583 | } |
---|
584 | } |
---|
585 | } else { |
---|
586 | (void)fprintf(vis_stdout, |
---|
587 | "** synth warning: skipping internal node name checking.\n"); |
---|
588 | } |
---|
589 | } |
---|
590 | |
---|
591 | |
---|
592 | /**Function******************************************************************** |
---|
593 | |
---|
594 | Synopsis [Dumps Bdds of all output nodes.] |
---|
595 | |
---|
596 | Description [Dumps Bdds of all output nodes. just for debug] |
---|
597 | |
---|
598 | SideEffects [] |
---|
599 | |
---|
600 | SeeAlso [] |
---|
601 | |
---|
602 | ******************************************************************************/ |
---|
603 | void |
---|
604 | SynthDumpBlif(Ntk_Network_t *net, |
---|
605 | bdd_manager *dd, |
---|
606 | int no, |
---|
607 | bdd_node **ofuncs, |
---|
608 | char **onames, |
---|
609 | int *initStates, |
---|
610 | char *model) |
---|
611 | { |
---|
612 | int size; |
---|
613 | bdd_node **bdds; |
---|
614 | FILE *fout; |
---|
615 | char **inames; |
---|
616 | char filename[MAX_NAME_LEN]; |
---|
617 | int i; |
---|
618 | lsGen gen; |
---|
619 | Ntk_Node_t *node; |
---|
620 | char **sorted_name; |
---|
621 | int ni, po; |
---|
622 | |
---|
623 | sprintf(filename, "%s.debug.blif", model); |
---|
624 | fout = fopen(filename, "w"); |
---|
625 | if (!fout) { |
---|
626 | (void)fprintf(vis_stderr, |
---|
627 | "** synth error: Can't open the file %s.\n", filename); |
---|
628 | return; |
---|
629 | } |
---|
630 | |
---|
631 | fprintf(fout, ".model %s\n", model); |
---|
632 | fprintf(fout, ".inputs"); |
---|
633 | |
---|
634 | /* Write list of primary inputs sorted lexicographically. */ |
---|
635 | ni = Ntk_NetworkReadNumPrimaryInputs(net); |
---|
636 | sorted_name = ALLOC(char *, ni * sizeof(char *)); |
---|
637 | i = 0; |
---|
638 | Ntk_NetworkForEachPrimaryInput(net, gen, node) { |
---|
639 | sorted_name[i++] = Ntk_NodeReadName(node); |
---|
640 | } |
---|
641 | qsort(sorted_name, ni, sizeof(char *), |
---|
642 | (int (*)(const void *, const void *))SynthStringCompare); |
---|
643 | for (i = 0; i < ni; i++) |
---|
644 | fprintf(fout," %s", sorted_name[i]); |
---|
645 | FREE(sorted_name); |
---|
646 | |
---|
647 | fprintf(fout, "\n"); |
---|
648 | fprintf(fout, ".outputs"); |
---|
649 | |
---|
650 | /* Write list of primary outputs sorted lexicographically. */ |
---|
651 | po = Ntk_NetworkReadNumPrimaryOutputs(net); |
---|
652 | sorted_name = ALLOC(char *, po * sizeof(char *)); |
---|
653 | i = 0; |
---|
654 | Ntk_NetworkForEachPrimaryOutput(net, gen, node) { |
---|
655 | sorted_name[i++] = Ntk_NodeReadName(node); |
---|
656 | } |
---|
657 | qsort(sorted_name, po, sizeof(char *), |
---|
658 | (int (*)(const void *, const void *))SynthStringCompare); |
---|
659 | for (i = 0; i < po; i++) |
---|
660 | fprintf(fout," %s", sorted_name[i]); |
---|
661 | FREE(sorted_name); |
---|
662 | fprintf(fout, "\n"); |
---|
663 | |
---|
664 | /* Print list of latches. */ |
---|
665 | i = 0; |
---|
666 | Ntk_NetworkForEachLatch(net, gen, node) { |
---|
667 | fprintf(fout,".latch %s", Ntk_NodeReadName(Ntk_LatchReadDataInput(node))); |
---|
668 | fprintf(fout, " %s", Ntk_NodeReadName(node)); |
---|
669 | fprintf(fout, " %d\n", initStates[i]); |
---|
670 | i++; |
---|
671 | } |
---|
672 | |
---|
673 | bdds = ALLOC(bdd_node *, no); |
---|
674 | |
---|
675 | for (i = 0; i < no; i++) { |
---|
676 | bdds[i] = bdd_make_bdd_from_zdd_cover(dd, ofuncs[i]); |
---|
677 | bdd_ref(bdds[i]); |
---|
678 | } |
---|
679 | |
---|
680 | inames = GetAllVarNameArray(dd); |
---|
681 | if (!inames) { |
---|
682 | for (i = 0; i < no; i++) |
---|
683 | bdd_recursive_deref(dd, bdds[i]); |
---|
684 | FREE(bdds); |
---|
685 | fclose(fout); |
---|
686 | (void)fprintf(vis_stderr, "** synth error: Out of memory.\n"); |
---|
687 | return; |
---|
688 | } |
---|
689 | |
---|
690 | bdd_dump_blif_body(dd, no, bdds, inames, onames, fout); |
---|
691 | fprintf(fout, ".end\n"); |
---|
692 | |
---|
693 | size = bdd_num_vars(dd); |
---|
694 | for (i = 0; i < size; i++) |
---|
695 | FREE(inames[i]); |
---|
696 | FREE(inames); |
---|
697 | |
---|
698 | for (i = 0; i < no; i++) |
---|
699 | bdd_recursive_deref(dd, bdds[i]); |
---|
700 | |
---|
701 | FREE(bdds); |
---|
702 | fclose(fout); |
---|
703 | } |
---|
704 | |
---|
705 | |
---|
706 | /*---------------------------------------------------------------------------*/ |
---|
707 | /* Definition of static functions */ |
---|
708 | /*---------------------------------------------------------------------------*/ |
---|
709 | |
---|
710 | /**Function******************************************************************** |
---|
711 | |
---|
712 | Synopsis [Writes a part of a blif file for each output function.] |
---|
713 | |
---|
714 | Description [Writes a part of a blif file for each output function. |
---|
715 | The resulting blif file will be based on the factorized multi level tree |
---|
716 | that has 3 children: quotient, divisor, and remainder.] |
---|
717 | |
---|
718 | SideEffects [] |
---|
719 | |
---|
720 | SeeAlso [WriteMlTreeBlif] |
---|
721 | |
---|
722 | ******************************************************************************/ |
---|
723 | static void |
---|
724 | WriteMlBlif(Ntk_Network_t *net, |
---|
725 | bdd_manager *dd, |
---|
726 | MlTree *tree, |
---|
727 | FILE *fout, |
---|
728 | int no, |
---|
729 | bdd_node **ofuncs, |
---|
730 | int *oflags, |
---|
731 | int top_flag, |
---|
732 | int verbosity) |
---|
733 | { |
---|
734 | int i; |
---|
735 | char name[MAX_NAME_LEN], q_name[MAX_NAME_LEN]; |
---|
736 | char d_name[MAX_NAME_LEN], r_name[MAX_NAME_LEN]; |
---|
737 | char eq[MAX_EQ_LEN]; |
---|
738 | bdd_node *one = bdd_read_one(dd); |
---|
739 | bdd_node *zero = bdd_read_zero(dd); |
---|
740 | char q, d, r; |
---|
741 | int comp; |
---|
742 | |
---|
743 | if (tree->leaf) { |
---|
744 | WriteLeafMlBlif(net, dd, tree, fout, no, ofuncs, oflags, top_flag, |
---|
745 | verbosity); |
---|
746 | return; |
---|
747 | } |
---|
748 | |
---|
749 | if (!tree->ref) { |
---|
750 | if (!tree->q_ref) |
---|
751 | WriteMlBlif(net, dd, tree->q, fout, no, ofuncs, oflags, 0, verbosity); |
---|
752 | if (!tree->d_ref) |
---|
753 | WriteMlBlif(net, dd, tree->d, fout, no, ofuncs, oflags, 0, verbosity); |
---|
754 | if (!tree->r_ref) |
---|
755 | WriteMlBlif(net, dd, tree->r, fout, no, ofuncs, oflags, 0, verbosity); |
---|
756 | } |
---|
757 | |
---|
758 | for (i = 0; i < no; i++) { |
---|
759 | if (tree->node == ofuncs[i]) { |
---|
760 | if (top_flag == 0) |
---|
761 | return; |
---|
762 | |
---|
763 | if (oflags[i]) |
---|
764 | continue; |
---|
765 | else |
---|
766 | oflags[i] = 1; |
---|
767 | sprintf(name, "%s", SynthGetIthOutputName(i)); |
---|
768 | break; |
---|
769 | } |
---|
770 | } |
---|
771 | if (i == no) |
---|
772 | SynthGetInternalNodeName(name, tree->id); |
---|
773 | |
---|
774 | fprintf(fout, "\n"); |
---|
775 | if (verbosity > 2) { |
---|
776 | SynthGetChildMlTreeWithName(net, dd, tree, eq); |
---|
777 | (void)fprintf(fout, "# %s\n", eq); |
---|
778 | } |
---|
779 | |
---|
780 | if (tree->q->pi) { |
---|
781 | comp = SynthGetPrimaryNodeName(net, tree->q->node, q_name); |
---|
782 | |
---|
783 | if (comp) |
---|
784 | q = '0'; |
---|
785 | else |
---|
786 | q = '1'; |
---|
787 | if (tree->q_comp) { |
---|
788 | if (q == '0') |
---|
789 | q = '1'; |
---|
790 | else |
---|
791 | q = '0'; |
---|
792 | } |
---|
793 | } else { |
---|
794 | for (i = 0; i < no; i++) { |
---|
795 | if (tree->q->node == ofuncs[i]) { |
---|
796 | sprintf(q_name, "%s", SynthGetIthOutputName(i)); |
---|
797 | break; |
---|
798 | } |
---|
799 | } |
---|
800 | if (i == no) |
---|
801 | SynthGetInternalNodeName(q_name, tree->q->id); |
---|
802 | if (tree->q_comp) |
---|
803 | q = '0'; |
---|
804 | else |
---|
805 | q = '1'; |
---|
806 | } |
---|
807 | if (tree->d->pi) { |
---|
808 | comp = SynthGetPrimaryNodeName(net, tree->d->node, d_name); |
---|
809 | |
---|
810 | if (comp) |
---|
811 | d = '0'; |
---|
812 | else |
---|
813 | d = '1'; |
---|
814 | if (tree->d_comp) { |
---|
815 | if (d == '0') |
---|
816 | d = '1'; |
---|
817 | else |
---|
818 | d = '0'; |
---|
819 | } |
---|
820 | } else { |
---|
821 | for (i = 0; i < no; i++) { |
---|
822 | if (tree->d->node == ofuncs[i]) { |
---|
823 | sprintf(d_name, "%s", SynthGetIthOutputName(i)); |
---|
824 | break; |
---|
825 | } |
---|
826 | } |
---|
827 | if (i == no) |
---|
828 | SynthGetInternalNodeName(d_name, tree->d->id); |
---|
829 | if (tree->d_comp) |
---|
830 | d = '0'; |
---|
831 | else |
---|
832 | d = '1'; |
---|
833 | } |
---|
834 | if (tree->r->pi) { |
---|
835 | comp = SynthGetPrimaryNodeName(net, tree->r->node, r_name); |
---|
836 | |
---|
837 | if (comp) |
---|
838 | r = '0'; |
---|
839 | else |
---|
840 | r = '1'; |
---|
841 | if (tree->r_comp) { |
---|
842 | if (r == '0') |
---|
843 | r = '1'; |
---|
844 | else |
---|
845 | r = '0'; |
---|
846 | } |
---|
847 | } else { |
---|
848 | for (i = 0; i < no; i++) { |
---|
849 | if (tree->r->node == ofuncs[i]) { |
---|
850 | sprintf(r_name, "%s", SynthGetIthOutputName(i)); |
---|
851 | break; |
---|
852 | } |
---|
853 | } |
---|
854 | if (i == no) |
---|
855 | SynthGetInternalNodeName(r_name, tree->r->id); |
---|
856 | if (tree->r_comp) |
---|
857 | r = '0'; |
---|
858 | else |
---|
859 | r = '1'; |
---|
860 | } |
---|
861 | |
---|
862 | if (GetDdNodeOfMlTree(tree->q, tree->q_comp) == zero || |
---|
863 | GetDdNodeOfMlTree(tree->d, tree->d_comp) == zero) { |
---|
864 | if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == one) { |
---|
865 | fprintf(fout, ".names %s\n", name); |
---|
866 | fprintf(fout, "1\n"); |
---|
867 | } else if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == zero) { |
---|
868 | fprintf(fout, ".names %s\n", name); |
---|
869 | fprintf(fout, "0\n"); |
---|
870 | } else { |
---|
871 | fprintf(fout, ".names %s %s\n", r_name, name); |
---|
872 | fprintf(fout, "%c 1\n", r); |
---|
873 | } |
---|
874 | } else if (GetDdNodeOfMlTree(tree->q, tree->q_comp) == one) { |
---|
875 | if (GetDdNodeOfMlTree(tree->d, tree->d_comp) == one) { |
---|
876 | fprintf(fout, ".names %s\n", name); |
---|
877 | fprintf(fout, "1\n"); |
---|
878 | } else if (GetDdNodeOfMlTree(tree->d, tree->d_comp) == zero) { |
---|
879 | if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == one) { |
---|
880 | fprintf(fout, ".names %s\n", name); |
---|
881 | fprintf(fout, "1\n"); |
---|
882 | } else if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == zero) { |
---|
883 | fprintf(fout, ".names %s\n", name); |
---|
884 | fprintf(fout, "0\n"); |
---|
885 | } else { |
---|
886 | fprintf(fout, ".names %s %s\n", r_name, name); |
---|
887 | fprintf(fout, "%c 1\n", r); |
---|
888 | } |
---|
889 | } else { |
---|
890 | if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == one) { |
---|
891 | fprintf(fout, ".names %s\n", name); |
---|
892 | fprintf(fout, "1\n"); |
---|
893 | } else if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == zero) { |
---|
894 | fprintf(fout, ".names %s %s\n", d_name, name); |
---|
895 | fprintf(fout, "%c 1\n", d); |
---|
896 | } else { |
---|
897 | fprintf(fout, ".names %s %s %s\n", d_name, r_name, |
---|
898 | name); |
---|
899 | fprintf(fout, "%c- 1\n", d); |
---|
900 | fprintf(fout, "-%c 1\n", r); |
---|
901 | } |
---|
902 | } |
---|
903 | } else if (GetDdNodeOfMlTree(tree->d, tree->d_comp) == one) { |
---|
904 | if (GetDdNodeOfMlTree(tree->q, tree->q_comp) == one) { |
---|
905 | fprintf(fout, ".names %s\n", name); |
---|
906 | fprintf(fout, "1\n"); |
---|
907 | } else if (GetDdNodeOfMlTree(tree->q, tree->q_comp) == zero) { |
---|
908 | if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == one) { |
---|
909 | fprintf(fout, ".names %s\n", name); |
---|
910 | fprintf(fout, "1\n"); |
---|
911 | } else if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == zero) { |
---|
912 | fprintf(fout, ".names %s\n", name); |
---|
913 | fprintf(fout, "0\n"); |
---|
914 | } else { |
---|
915 | fprintf(fout, ".names %s %s\n", r_name, name); |
---|
916 | fprintf(fout, "%c 1\n", r); |
---|
917 | } |
---|
918 | } else { |
---|
919 | if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == one) { |
---|
920 | fprintf(fout, ".names %s\n", name); |
---|
921 | fprintf(fout, "1\n"); |
---|
922 | } else if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == zero) { |
---|
923 | fprintf(fout, ".names %s %s\n", q_name, name); |
---|
924 | fprintf(fout, "%c 1\n", q); |
---|
925 | } else { |
---|
926 | fprintf(fout, ".names %s %s %s\n", q_name, r_name, name); |
---|
927 | fprintf(fout, "%c- 1\n", q); |
---|
928 | fprintf(fout, "-%c 1\n", r); |
---|
929 | } |
---|
930 | } |
---|
931 | } else { |
---|
932 | if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == one) { |
---|
933 | fprintf(fout, ".names %s\n", name); |
---|
934 | fprintf(fout, "1\n"); |
---|
935 | } else if (GetDdNodeOfMlTree(tree->r, tree->r_comp) == zero) { |
---|
936 | fprintf(fout, ".names %s %s %s\n", q_name, d_name, name); |
---|
937 | fprintf(fout, "%c%c 1\n", q, d); |
---|
938 | } else { |
---|
939 | fprintf(fout, ".names %s %s %s %s\n", q_name, d_name, r_name, name); |
---|
940 | fprintf(fout, "%c%c- 1\n", q, d); |
---|
941 | fprintf(fout, "--%c 1\n", r); |
---|
942 | } |
---|
943 | } |
---|
944 | } |
---|
945 | |
---|
946 | /**Function******************************************************************** |
---|
947 | |
---|
948 | Synopsis [Writes a .names block in blif file for each tree that is a leaf |
---|
949 | node.] |
---|
950 | |
---|
951 | Description [Writes a .names block in blif file for each tree that is a leaf |
---|
952 | node.] |
---|
953 | |
---|
954 | SideEffects [] |
---|
955 | |
---|
956 | SeeAlso [] |
---|
957 | |
---|
958 | ******************************************************************************/ |
---|
959 | static void |
---|
960 | WriteLeafMlBlif(Ntk_Network_t *net, |
---|
961 | bdd_manager *dd, |
---|
962 | MlTree *tree, |
---|
963 | FILE *fout, |
---|
964 | int no, |
---|
965 | bdd_node **ofuncs, |
---|
966 | int *oflags, |
---|
967 | int top_flag, |
---|
968 | int verbosity) |
---|
969 | { |
---|
970 | int i, count, *support; |
---|
971 | char name[MAX_EQ_LEN]; |
---|
972 | bdd_node *one = bdd_read_one(dd); |
---|
973 | bdd_node *zero = bdd_read_zero(dd); |
---|
974 | char out_name[MAX_NAME_LEN]; |
---|
975 | bdd_node *node; |
---|
976 | Ntk_Node_t *ntk_node; |
---|
977 | int sizeZ; |
---|
978 | |
---|
979 | sizeZ = bdd_num_zdd_vars(dd); |
---|
980 | |
---|
981 | if (tree->node == one || tree->node == zero || tree->pi) |
---|
982 | return; |
---|
983 | |
---|
984 | if (tree->comp) |
---|
985 | node = tree->complement; |
---|
986 | else |
---|
987 | node = tree->node; |
---|
988 | for (i = 0; i < no; i++) { |
---|
989 | if (node == ofuncs[i]) { |
---|
990 | if (top_flag == 0) |
---|
991 | return; |
---|
992 | |
---|
993 | if (oflags[i]) |
---|
994 | continue; |
---|
995 | else |
---|
996 | oflags[i] = 1; |
---|
997 | sprintf(out_name, "%s", SynthGetIthOutputName(i)); |
---|
998 | break; |
---|
999 | } |
---|
1000 | } |
---|
1001 | if (i == no) |
---|
1002 | SynthGetInternalNodeName(out_name, tree->id); |
---|
1003 | else { |
---|
1004 | ntk_node = Ntk_NetworkFindNodeByName(net, out_name); |
---|
1005 | if (Ntk_NodeTestIsLatch(ntk_node)) |
---|
1006 | return; |
---|
1007 | } |
---|
1008 | |
---|
1009 | fprintf(fout, "\n"); |
---|
1010 | if (verbosity > 2) { |
---|
1011 | SynthGetChildMlTreeWithName(net, dd, tree, name); |
---|
1012 | fprintf(fout, "# %s\n", name); |
---|
1013 | } |
---|
1014 | fprintf(fout, ".names "); |
---|
1015 | |
---|
1016 | support = ALLOC(int, sizeZ); |
---|
1017 | if (!support) |
---|
1018 | return; |
---|
1019 | (void)memset((void *)support, 0, sizeof(int) * sizeZ); |
---|
1020 | SynthZddSupportStep(bdd_regular(node), support); |
---|
1021 | SynthZddClearFlag(bdd_regular(node)); |
---|
1022 | count = 0; |
---|
1023 | for (i = 0; i < sizeZ; i++) { |
---|
1024 | if (support[i]) { |
---|
1025 | SynthGetPrimaryIndexName(net, i, name); |
---|
1026 | fprintf(fout, "%s ", name); |
---|
1027 | if (i % 2 == 0) { |
---|
1028 | support[i] = count; |
---|
1029 | i++; |
---|
1030 | if (support[i]) |
---|
1031 | support[i] = count; |
---|
1032 | } else { |
---|
1033 | support[i] = count; |
---|
1034 | } |
---|
1035 | count++; |
---|
1036 | } |
---|
1037 | } |
---|
1038 | fprintf(fout, "%s\n", out_name); |
---|
1039 | |
---|
1040 | for (i = 0; i < count; i++) |
---|
1041 | name[i] = '-'; |
---|
1042 | name[count] = '\0'; |
---|
1043 | WriteBlifBinary(dd, node, name, fout, support); |
---|
1044 | FREE(support); |
---|
1045 | } |
---|
1046 | |
---|
1047 | |
---|
1048 | /**Function******************************************************************** |
---|
1049 | |
---|
1050 | Synopsis [Writes all cubes of the node in .name block.] |
---|
1051 | |
---|
1052 | Description [Writes all cubes of the node in .name block. This can be done |
---|
1053 | by finding all paths to the constant 1 node from the node.] |
---|
1054 | |
---|
1055 | SideEffects [] |
---|
1056 | |
---|
1057 | SeeAlso [] |
---|
1058 | |
---|
1059 | ******************************************************************************/ |
---|
1060 | static void |
---|
1061 | WriteBlifBinary(bdd_manager *dd, |
---|
1062 | bdd_node *node, |
---|
1063 | char *name, |
---|
1064 | FILE *fout, |
---|
1065 | int *support) |
---|
1066 | { |
---|
1067 | bdd_node *one = bdd_read_one(dd); |
---|
1068 | bdd_node *zero = bdd_read_zero(dd); |
---|
1069 | int id = bdd_node_read_index(node); |
---|
1070 | |
---|
1071 | if (node == zero) |
---|
1072 | return; |
---|
1073 | |
---|
1074 | if (node == one) { |
---|
1075 | fprintf(fout, "%s 1\n", name); |
---|
1076 | return; |
---|
1077 | } |
---|
1078 | |
---|
1079 | if (id % 2 == 0) |
---|
1080 | name[support[id]] = '1'; |
---|
1081 | else |
---|
1082 | name[support[id]] = '0'; |
---|
1083 | WriteBlifBinary(dd, bdd_bdd_T(node), name, fout, support); |
---|
1084 | name[support[id]] = '-'; |
---|
1085 | WriteBlifBinary(dd, bdd_bdd_E(node), name, fout, support); |
---|
1086 | name[support[id]] = '-'; |
---|
1087 | } |
---|
1088 | |
---|
1089 | |
---|
1090 | /**Function******************************************************************** |
---|
1091 | |
---|
1092 | Synopsis [Writes multi level equations of a tree.] |
---|
1093 | |
---|
1094 | Description [Writes multi level equations of a tree.] |
---|
1095 | |
---|
1096 | SideEffects [] |
---|
1097 | |
---|
1098 | SeeAlso [] |
---|
1099 | |
---|
1100 | ******************************************************************************/ |
---|
1101 | static void |
---|
1102 | WriteEqnOfTree(FILE *fout, |
---|
1103 | Ntk_Network_t *net, |
---|
1104 | bdd_manager *dd, |
---|
1105 | MlTree *tree, |
---|
1106 | bdd_node **ofuncs) |
---|
1107 | { |
---|
1108 | char eq[MAX_EQ_LEN]; |
---|
1109 | char name[MAX_NAME_LEN]; |
---|
1110 | int polarity = 0; |
---|
1111 | |
---|
1112 | polarity = GetMlTreeName(net, ofuncs, tree, name); |
---|
1113 | eq[0] = '\0'; |
---|
1114 | GetEqnOfTree(net, dd, tree, tree, eq, ofuncs); |
---|
1115 | if (polarity) |
---|
1116 | SynthMakeComplementString(eq); |
---|
1117 | fprintf(fout, "%s = %s\n", name, eq); |
---|
1118 | } |
---|
1119 | |
---|
1120 | |
---|
1121 | /**Function******************************************************************** |
---|
1122 | |
---|
1123 | Synopsis [Gets multi level equations of a tree.] |
---|
1124 | |
---|
1125 | Description [Gets multi level equations of a tree.] |
---|
1126 | |
---|
1127 | SideEffects [] |
---|
1128 | |
---|
1129 | SeeAlso [] |
---|
1130 | |
---|
1131 | ******************************************************************************/ |
---|
1132 | static int |
---|
1133 | GetEqnOfTree(Ntk_Network_t *net, |
---|
1134 | bdd_manager *dd, |
---|
1135 | MlTree *top, |
---|
1136 | MlTree *tree, |
---|
1137 | char *eq, |
---|
1138 | bdd_node **ofuncs) |
---|
1139 | { |
---|
1140 | char q_eq[MAX_EQ_LEN]; |
---|
1141 | char d_eq[MAX_EQ_LEN]; |
---|
1142 | char r_eq[MAX_EQ_LEN]; |
---|
1143 | char qd_eq[MAX_EQ_LEN]; |
---|
1144 | bdd_node *one = bdd_read_one(dd); |
---|
1145 | bdd_node *zero = bdd_read_zero(dd); |
---|
1146 | bdd_node *f; |
---|
1147 | int flag; |
---|
1148 | int polarity = 0; |
---|
1149 | |
---|
1150 | if (tree != top && tree->shared) { |
---|
1151 | polarity = GetMlTreeName(net, ofuncs, tree, eq); |
---|
1152 | if (polarity) |
---|
1153 | SynthMakeComplementString(eq); |
---|
1154 | return(0); |
---|
1155 | } |
---|
1156 | |
---|
1157 | f = tree->node; |
---|
1158 | if (tree->leaf) { |
---|
1159 | flag = SynthGetChildTreeWithName(net, dd, f, eq); |
---|
1160 | return(flag); |
---|
1161 | } |
---|
1162 | |
---|
1163 | if (f == one) { |
---|
1164 | sprintf(eq, "one"); |
---|
1165 | return(0); |
---|
1166 | } else if (f == zero) { |
---|
1167 | sprintf(eq, "zero"); |
---|
1168 | return(0); |
---|
1169 | } |
---|
1170 | |
---|
1171 | q_eq[0] = d_eq[0] = r_eq[0] = '\0'; |
---|
1172 | flag = GetEqnOfTree(net, dd, top, tree->q, q_eq, ofuncs); |
---|
1173 | if (tree->q_comp) |
---|
1174 | SynthMakeComplementString(q_eq); |
---|
1175 | if (flag) |
---|
1176 | return(1); |
---|
1177 | if (GetDdNodeOfMlTree(tree->d, tree->d_comp) == one) |
---|
1178 | d_eq[0] = '\0'; |
---|
1179 | else { |
---|
1180 | flag = GetEqnOfTree(net, dd, top, tree->d, d_eq, ofuncs); |
---|
1181 | if (tree->d_comp) |
---|
1182 | SynthMakeComplementString(d_eq); |
---|
1183 | if (flag) |
---|
1184 | return(1); |
---|
1185 | } |
---|
1186 | flag = GetEqnOfTree(net, dd, top, tree->r, r_eq, ofuncs); |
---|
1187 | if (tree->r_comp) |
---|
1188 | SynthMakeComplementString(r_eq); |
---|
1189 | if (flag) |
---|
1190 | return(1); |
---|
1191 | |
---|
1192 | if (strcmp(q_eq, "one") == 0) |
---|
1193 | sprintf(qd_eq, "%s", d_eq); |
---|
1194 | else if (strcmp(q_eq, "zero") == 0) |
---|
1195 | sprintf(qd_eq, "zero"); |
---|
1196 | else if (strcmp(d_eq, "one") == 0) |
---|
1197 | sprintf(qd_eq, "%s", q_eq); |
---|
1198 | else if (strcmp(d_eq, "zero") == 0) |
---|
1199 | sprintf(qd_eq, "zero"); |
---|
1200 | else { |
---|
1201 | if (strlen(q_eq) + strlen(d_eq) + 1 > MAX_EQ_LEN) { |
---|
1202 | sprintf(eq, "%s", q_eq); |
---|
1203 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
1204 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
1205 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
1206 | } else { |
---|
1207 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
1208 | eq[strlen(eq) + 1] = '\0'; |
---|
1209 | } |
---|
1210 | return(1); |
---|
1211 | } |
---|
1212 | sprintf(qd_eq, "%s %s", q_eq, d_eq); |
---|
1213 | } |
---|
1214 | |
---|
1215 | if (strcmp(r_eq, "zero") == 0) |
---|
1216 | sprintf(eq, "%s", qd_eq); |
---|
1217 | else { |
---|
1218 | if (strlen(qd_eq) + strlen(r_eq) + 1 > MAX_EQ_LEN) { |
---|
1219 | sprintf(eq, "%s", qd_eq); |
---|
1220 | if (strlen(eq) == MAX_EQ_LEN - 1) { |
---|
1221 | eq[MAX_EQ_LEN - 2] = '#'; /* truncated */ |
---|
1222 | eq[MAX_EQ_LEN - 1] = '\0'; |
---|
1223 | } else { |
---|
1224 | eq[strlen(eq)] = '#'; /* truncated */ |
---|
1225 | eq[strlen(eq) + 1] = '\0'; |
---|
1226 | } |
---|
1227 | return(1); |
---|
1228 | } |
---|
1229 | sprintf(eq, "(%s + %s)", qd_eq, r_eq); |
---|
1230 | } |
---|
1231 | return(0); |
---|
1232 | } |
---|
1233 | |
---|
1234 | |
---|
1235 | /**Function******************************************************************** |
---|
1236 | |
---|
1237 | Synopsis [Writes a part of a blif file for each output function.] |
---|
1238 | |
---|
1239 | Description [Writes a part of a blif file for each output function. |
---|
1240 | All top nodes and all nodes that are shared will be output nodes of |
---|
1241 | .names in blif file.] |
---|
1242 | |
---|
1243 | SideEffects [] |
---|
1244 | |
---|
1245 | SeeAlso [] |
---|
1246 | |
---|
1247 | ******************************************************************************/ |
---|
1248 | static void |
---|
1249 | WriteMlTreeBlif(FILE *fout, |
---|
1250 | Ntk_Network_t *net, |
---|
1251 | bdd_manager *dd, |
---|
1252 | MlTree *tree, |
---|
1253 | bdd_node **ofuncs, |
---|
1254 | int no, |
---|
1255 | char *func_name, |
---|
1256 | int ref) |
---|
1257 | { |
---|
1258 | char name[MAX_NAME_LEN]; |
---|
1259 | int polarity = 0; |
---|
1260 | |
---|
1261 | if (tree->top || tree->shared) { |
---|
1262 | if (ref) { |
---|
1263 | if (tree->ref) { |
---|
1264 | polarity = GetMlTreeName(net, ofuncs, tree, name); |
---|
1265 | fprintf(fout, "\n.names %s %s\n", name, func_name); |
---|
1266 | if (polarity == 0) { |
---|
1267 | if (tree->comp) |
---|
1268 | fprintf(fout, "0 1\n"); |
---|
1269 | else |
---|
1270 | fprintf(fout, "1 1\n"); |
---|
1271 | } else { |
---|
1272 | if (tree->comp) |
---|
1273 | fprintf(fout, "1 1\n"); |
---|
1274 | else |
---|
1275 | fprintf(fout, "0 1\n"); |
---|
1276 | } |
---|
1277 | return; |
---|
1278 | } |
---|
1279 | } |
---|
1280 | WriteMultiLevelBlif(fout, net, dd, tree, ofuncs, no); |
---|
1281 | } |
---|
1282 | |
---|
1283 | if (tree->leaf) |
---|
1284 | return; |
---|
1285 | |
---|
1286 | if (tree->q_ref == 0) |
---|
1287 | WriteMlTreeBlif(fout, net, dd, tree->q, ofuncs, no, NULL, ref); |
---|
1288 | if (tree->d_ref == 0) |
---|
1289 | WriteMlTreeBlif(fout, net, dd, tree->d, ofuncs, no, NULL, ref); |
---|
1290 | if (tree->r_ref == 0) |
---|
1291 | WriteMlTreeBlif(fout, net, dd, tree->r, ofuncs, no, NULL, ref); |
---|
1292 | } |
---|
1293 | |
---|
1294 | |
---|
1295 | /**Function******************************************************************** |
---|
1296 | |
---|
1297 | Synopsis [Writes a .names block in blif file for each tree that is a |
---|
1298 | top node or a shared node.] |
---|
1299 | |
---|
1300 | Description [Writes a .names block in blif file for each tree that is a |
---|
1301 | top node or a shared node.] |
---|
1302 | |
---|
1303 | SideEffects [] |
---|
1304 | |
---|
1305 | SeeAlso [] |
---|
1306 | |
---|
1307 | ******************************************************************************/ |
---|
1308 | static void |
---|
1309 | WriteMultiLevelBlif(FILE *fout, |
---|
1310 | Ntk_Network_t *net, |
---|
1311 | bdd_manager *dd, |
---|
1312 | MlTree *tree, |
---|
1313 | bdd_node **ofuncs, |
---|
1314 | int no) |
---|
1315 | { |
---|
1316 | int i, ni; |
---|
1317 | char name[MAX_NAME_LEN]; |
---|
1318 | TruthTableLine *lines, *cur, *next; |
---|
1319 | st_table *table; |
---|
1320 | char **sorted_name, *key; |
---|
1321 | st_generator *gen; |
---|
1322 | int pos; |
---|
1323 | Ntk_Node_t *ntk_node; |
---|
1324 | int polarity = 0; |
---|
1325 | |
---|
1326 | polarity = GetMlTreeName(net, ofuncs, tree, name); |
---|
1327 | for (i = 0; i < no; i++) { |
---|
1328 | if (tree->node == ofuncs[i]) { |
---|
1329 | ntk_node = Ntk_NetworkFindNodeByName(net, name); |
---|
1330 | if (Ntk_NodeTestIsLatch(ntk_node)) |
---|
1331 | return; |
---|
1332 | } |
---|
1333 | } |
---|
1334 | |
---|
1335 | table = st_init_table(strcmp, st_strhash); |
---|
1336 | ni = 0; |
---|
1337 | ni = GetMultiLevelNodes(net, dd, tree, tree, ofuncs, no, table, ni); |
---|
1338 | sorted_name = ALLOC(char *, ni * sizeof(char *)); |
---|
1339 | i = 0; |
---|
1340 | st_foreach_item_int(table, gen, (char **)&key, &pos) { |
---|
1341 | sorted_name[i] = key; |
---|
1342 | i++; |
---|
1343 | } |
---|
1344 | qsort(sorted_name, ni, sizeof(char *), |
---|
1345 | (int (*)(const void *, const void *))SynthStringCompare); |
---|
1346 | for (i = 0; i < ni; i++) { |
---|
1347 | st_insert(table, (char *)sorted_name[i], (char *)(long)i); |
---|
1348 | } |
---|
1349 | lines = GetMultiLevelBlifRecur(net, dd, tree, tree, ofuncs, no, table, ni); |
---|
1350 | fprintf(fout, "\n.names"); |
---|
1351 | for (i = 0; i < ni; i++) |
---|
1352 | fprintf(fout, " %s", sorted_name[i]); |
---|
1353 | fprintf(fout, " %s\n", name); |
---|
1354 | cur = lines; |
---|
1355 | while (cur) { |
---|
1356 | next = cur->next; |
---|
1357 | if (polarity == 0) |
---|
1358 | fprintf(fout, "%s 1\n", cur->values); |
---|
1359 | else |
---|
1360 | fprintf(fout, "%s 0\n", cur->values); |
---|
1361 | FREE(cur->values); |
---|
1362 | FREE(cur); |
---|
1363 | cur = next; |
---|
1364 | } |
---|
1365 | st_free_table(table); |
---|
1366 | for (i = 0; i < ni; i++) |
---|
1367 | FREE(sorted_name[i]); |
---|
1368 | FREE(sorted_name); |
---|
1369 | } |
---|
1370 | |
---|
1371 | |
---|
1372 | /**Function******************************************************************** |
---|
1373 | |
---|
1374 | Synopsis [Gets all cube list of a .name block.] |
---|
1375 | |
---|
1376 | Description [Gets all cube list of a .name block.] |
---|
1377 | |
---|
1378 | SideEffects [] |
---|
1379 | |
---|
1380 | SeeAlso [] |
---|
1381 | |
---|
1382 | ******************************************************************************/ |
---|
1383 | static TruthTableLine * |
---|
1384 | GetMultiLevelBlifRecur(Ntk_Network_t *net, |
---|
1385 | bdd_manager *dd, |
---|
1386 | MlTree *top, |
---|
1387 | MlTree *tree, |
---|
1388 | bdd_node **ofuncs, |
---|
1389 | int no, |
---|
1390 | st_table *table, |
---|
1391 | int ni) |
---|
1392 | { |
---|
1393 | bdd_node *one = bdd_read_one(dd); |
---|
1394 | bdd_node *zero = bdd_read_zero(dd); |
---|
1395 | bdd_node *f; |
---|
1396 | TruthTableLine *line; |
---|
1397 | TruthTableLine *cur, *q_line, *d_line, *r_line; |
---|
1398 | int pos; |
---|
1399 | char name[MAX_NAME_LEN]; |
---|
1400 | int polarity = 0; |
---|
1401 | |
---|
1402 | line = (TruthTableLine *)NULL; |
---|
1403 | |
---|
1404 | if (tree != top && tree->shared) { |
---|
1405 | polarity = GetMlTreeName(net, ofuncs, tree, name); |
---|
1406 | line = GetTautologyLine(ni); |
---|
1407 | if (st_lookup_int(table, (char *)name, (int *)(&pos))) { |
---|
1408 | if (polarity == 0) |
---|
1409 | line->values[pos] = '1'; |
---|
1410 | else |
---|
1411 | line->values[pos] = '0'; |
---|
1412 | } |
---|
1413 | return(line); |
---|
1414 | } |
---|
1415 | |
---|
1416 | f = tree->node; |
---|
1417 | if (tree->leaf) { |
---|
1418 | line = GetLeafLines(net, dd, tree, ofuncs, no, table, ni); |
---|
1419 | return(line); |
---|
1420 | } |
---|
1421 | |
---|
1422 | if (f == one || f == zero) |
---|
1423 | return(line); |
---|
1424 | |
---|
1425 | q_line = GetMultiLevelBlifRecur(net, dd, top, tree->q, ofuncs, |
---|
1426 | no, table, ni); |
---|
1427 | if (q_line && tree->q_comp) |
---|
1428 | q_line = GetComplementLines(q_line, ni, 1); |
---|
1429 | if (GetDdNodeOfMlTree(tree->d, tree->d_comp) == one) |
---|
1430 | d_line = (TruthTableLine *)NULL; |
---|
1431 | else { |
---|
1432 | d_line = GetMultiLevelBlifRecur(net, dd, top, tree->d, ofuncs, no, |
---|
1433 | table, ni); |
---|
1434 | if (d_line && tree->d_comp) |
---|
1435 | d_line = GetComplementLines(d_line, ni, 1); |
---|
1436 | } |
---|
1437 | if (q_line && d_line) |
---|
1438 | line = GetAndLines(q_line, d_line, ni, 1); |
---|
1439 | else if (q_line) |
---|
1440 | line = q_line; |
---|
1441 | else if (d_line) |
---|
1442 | line = d_line; |
---|
1443 | r_line = GetMultiLevelBlifRecur(net, dd, top, tree->r, ofuncs, no, table, ni); |
---|
1444 | if (r_line && tree->r_comp) |
---|
1445 | r_line = GetComplementLines(r_line, ni, 1); |
---|
1446 | if (r_line) { |
---|
1447 | cur = line; |
---|
1448 | while (cur) { |
---|
1449 | if (!cur->next) { |
---|
1450 | cur->next = r_line; |
---|
1451 | break; |
---|
1452 | } |
---|
1453 | cur = cur->next; |
---|
1454 | } |
---|
1455 | } |
---|
1456 | |
---|
1457 | return(line); |
---|
1458 | } |
---|
1459 | |
---|
1460 | |
---|
1461 | /**Function******************************************************************** |
---|
1462 | |
---|
1463 | Synopsis [Get the names of all input nodes of .name block for an output |
---|
1464 | tree.] |
---|
1465 | |
---|
1466 | Description [Get the names of all input nodes of .name block for an output |
---|
1467 | tree.] |
---|
1468 | |
---|
1469 | SideEffects [] |
---|
1470 | |
---|
1471 | SeeAlso [] |
---|
1472 | |
---|
1473 | ******************************************************************************/ |
---|
1474 | static int |
---|
1475 | GetMultiLevelNodes(Ntk_Network_t *net, |
---|
1476 | bdd_manager *dd, |
---|
1477 | MlTree *top, |
---|
1478 | MlTree *tree, |
---|
1479 | bdd_node **ofuncs, |
---|
1480 | int no, |
---|
1481 | st_table *table, |
---|
1482 | int ni) |
---|
1483 | { |
---|
1484 | bdd_node *one = bdd_read_one(dd); |
---|
1485 | bdd_node *zero = bdd_read_zero(dd); |
---|
1486 | bdd_node *f; |
---|
1487 | char name[MAX_NAME_LEN], *st_name; |
---|
1488 | int pos; |
---|
1489 | |
---|
1490 | if (tree != top && tree->shared) { |
---|
1491 | (void) GetMlTreeName(net, ofuncs, tree, name); |
---|
1492 | if (!st_lookup_int(table, (char *)name, (int *)(&pos))) { |
---|
1493 | st_name = ALLOC(char, strlen(name) + 1); |
---|
1494 | strcpy(st_name, name); |
---|
1495 | st_insert(table, (char *)st_name, (char *)(long)ni); |
---|
1496 | ni++; |
---|
1497 | } |
---|
1498 | return(ni); |
---|
1499 | } |
---|
1500 | |
---|
1501 | f = tree->node; |
---|
1502 | if (tree->leaf) { |
---|
1503 | ni = GetLeafNodes(net, dd, tree, ofuncs, no, table, ni); |
---|
1504 | return(ni); |
---|
1505 | } |
---|
1506 | |
---|
1507 | if (f == one || f == zero) |
---|
1508 | return(ni); |
---|
1509 | |
---|
1510 | ni = GetMultiLevelNodes(net, dd, top, tree->q, ofuncs, no, table, ni); |
---|
1511 | if (GetDdNodeOfMlTree(tree->d, tree->d_comp) != one) |
---|
1512 | ni = GetMultiLevelNodes(net, dd, top, tree->d, ofuncs, no, table, ni); |
---|
1513 | ni = GetMultiLevelNodes(net, dd, top, tree->r, ofuncs, no, table, ni); |
---|
1514 | |
---|
1515 | return(ni); |
---|
1516 | } |
---|
1517 | |
---|
1518 | |
---|
1519 | /**Function******************************************************************** |
---|
1520 | |
---|
1521 | Synopsis [Get the names of all input nodes of a tree which is a leaf |
---|
1522 | node.] |
---|
1523 | |
---|
1524 | Description [Get the names of all input nodes of a tree which is a leaf |
---|
1525 | node.] |
---|
1526 | |
---|
1527 | SideEffects [] |
---|
1528 | |
---|
1529 | SeeAlso [] |
---|
1530 | |
---|
1531 | ******************************************************************************/ |
---|
1532 | static int |
---|
1533 | GetLeafNodes(Ntk_Network_t *net, |
---|
1534 | bdd_manager *dd, |
---|
1535 | MlTree *tree, |
---|
1536 | bdd_node **ofuncs, |
---|
1537 | int no, |
---|
1538 | st_table *table, |
---|
1539 | int ni) |
---|
1540 | { |
---|
1541 | int i, *support; |
---|
1542 | char name[MAX_NAME_LEN], *st_name; |
---|
1543 | bdd_node *one = bdd_read_one(dd); |
---|
1544 | bdd_node *zero = bdd_read_zero(dd); |
---|
1545 | bdd_node *node; |
---|
1546 | int pos, sizeZ = bdd_num_zdd_vars(dd); |
---|
1547 | |
---|
1548 | if (tree->node == one || tree->node == zero) |
---|
1549 | return(ni); |
---|
1550 | |
---|
1551 | if (tree->comp) |
---|
1552 | node = tree->complement; |
---|
1553 | else |
---|
1554 | node = tree->node; |
---|
1555 | |
---|
1556 | support = ALLOC(int, sizeZ); |
---|
1557 | if (!support) |
---|
1558 | return(ni); |
---|
1559 | (void)memset((void *)support, 0, sizeof(int) * sizeZ); |
---|
1560 | SynthZddSupportStep(bdd_regular(node), support); |
---|
1561 | SynthZddClearFlag(bdd_regular(node)); |
---|
1562 | for (i = 0; i < sizeZ; i++) { |
---|
1563 | if (support[i]) { |
---|
1564 | SynthGetPrimaryIndexName(net, i, name); |
---|
1565 | if (!st_lookup_int(table, (char *)name, (int *)(&pos))) { |
---|
1566 | st_name = ALLOC(char, strlen(name) + 1); |
---|
1567 | strcpy(st_name, name); |
---|
1568 | st_insert(table, (char *)st_name, (char *)(long)ni); |
---|
1569 | ni++; |
---|
1570 | } |
---|
1571 | } |
---|
1572 | } |
---|
1573 | FREE(support); |
---|
1574 | return(ni); |
---|
1575 | } |
---|
1576 | |
---|
1577 | |
---|
1578 | /**Function******************************************************************** |
---|
1579 | |
---|
1580 | Synopsis [Gets a tautologous TruthTableLine.] |
---|
1581 | |
---|
1582 | Description [Gets a tautologous TruthTableLine.] |
---|
1583 | |
---|
1584 | SideEffects [] |
---|
1585 | |
---|
1586 | SeeAlso [] |
---|
1587 | |
---|
1588 | ******************************************************************************/ |
---|
1589 | static TruthTableLine * |
---|
1590 | GetTautologyLine(int ni) |
---|
1591 | { |
---|
1592 | int i; |
---|
1593 | TruthTableLine *line; |
---|
1594 | |
---|
1595 | line = ALLOC(TruthTableLine, 1); |
---|
1596 | (void)memset((void *)line, 0, sizeof(TruthTableLine)); |
---|
1597 | line->values = (char *)malloc(ni + 1); |
---|
1598 | for (i = 0; i < ni; i++) |
---|
1599 | line->values[i] = '-'; |
---|
1600 | line->values[ni] = '\0'; |
---|
1601 | return(line); |
---|
1602 | } |
---|
1603 | |
---|
1604 | |
---|
1605 | /**Function******************************************************************** |
---|
1606 | |
---|
1607 | Synopsis [Gets a list of TruthTableLine for a tree which is a leaf node.] |
---|
1608 | |
---|
1609 | Description [Gets a list of TruthTableLine for a tree which is a leaf node.] |
---|
1610 | |
---|
1611 | SideEffects [] |
---|
1612 | |
---|
1613 | SeeAlso [] |
---|
1614 | |
---|
1615 | ******************************************************************************/ |
---|
1616 | static TruthTableLine * |
---|
1617 | GetLeafLines(Ntk_Network_t *net, |
---|
1618 | bdd_manager *dd, |
---|
1619 | MlTree *tree, |
---|
1620 | bdd_node **ofuncs, |
---|
1621 | int no, |
---|
1622 | st_table *table, |
---|
1623 | int ni) |
---|
1624 | { |
---|
1625 | int i, *support; |
---|
1626 | char values[MAX_EQ_LEN]; |
---|
1627 | bdd_node *one = bdd_read_one(dd); |
---|
1628 | bdd_node *zero = bdd_read_zero(dd); |
---|
1629 | bdd_node *node; |
---|
1630 | TruthTableLine *line; |
---|
1631 | int pos, sizeZ = bdd_num_zdd_vars(dd); |
---|
1632 | char name[MAX_NAME_LEN]; |
---|
1633 | |
---|
1634 | line = (TruthTableLine *)NULL; |
---|
1635 | |
---|
1636 | if (tree->node == one || tree->node == zero) |
---|
1637 | return(line); |
---|
1638 | |
---|
1639 | if (tree->comp) |
---|
1640 | node = tree->complement; |
---|
1641 | else |
---|
1642 | node = tree->node; |
---|
1643 | |
---|
1644 | support = ALLOC(int, sizeZ); |
---|
1645 | if (!support) |
---|
1646 | return(line); |
---|
1647 | (void)memset((void *)support, 0, sizeof(int) * sizeZ); |
---|
1648 | SynthZddSupportStep(bdd_regular(node), support); |
---|
1649 | SynthZddClearFlag(bdd_regular(node)); |
---|
1650 | for (i = 0; i < sizeZ; i++) { |
---|
1651 | if (support[i]) { |
---|
1652 | SynthGetPrimaryIndexName(net, i, name); |
---|
1653 | if (!st_lookup_int(table, (char *)name, (int *)(&pos))) { |
---|
1654 | fprintf(vis_stdout, |
---|
1655 | "** synth error: Failed to find %s in hash.\n", name); |
---|
1656 | } |
---|
1657 | support[i] = pos; |
---|
1658 | } |
---|
1659 | } |
---|
1660 | |
---|
1661 | for (i = 0; i < ni; i++) |
---|
1662 | values[i] = '-'; |
---|
1663 | values[ni] = '\0'; |
---|
1664 | line = GetBlifBinary(line, dd, node, values, support, ni); |
---|
1665 | FREE(support); |
---|
1666 | return(line); |
---|
1667 | } |
---|
1668 | |
---|
1669 | |
---|
1670 | /**Function******************************************************************** |
---|
1671 | |
---|
1672 | Synopsis [Gets a list of TruthTableLine for a tree which is a leaf node.] |
---|
1673 | |
---|
1674 | Description [Gets a list of TruthTableLine for a tree which is a leaf node.] |
---|
1675 | |
---|
1676 | SideEffects [] |
---|
1677 | |
---|
1678 | SeeAlso [GetLeafLines] |
---|
1679 | |
---|
1680 | ******************************************************************************/ |
---|
1681 | static TruthTableLine * |
---|
1682 | GetBlifBinary(TruthTableLine *line, |
---|
1683 | bdd_manager *dd, |
---|
1684 | bdd_node *node, |
---|
1685 | char *values, |
---|
1686 | int *support, |
---|
1687 | int ni) |
---|
1688 | { |
---|
1689 | bdd_node *one = bdd_read_one(dd); |
---|
1690 | bdd_node *zero = bdd_read_zero(dd); |
---|
1691 | TruthTableLine *new_, *cur; |
---|
1692 | int id = bdd_node_read_index(node); |
---|
1693 | |
---|
1694 | if (node == zero) |
---|
1695 | return(line); |
---|
1696 | |
---|
1697 | if (node == one) { |
---|
1698 | new_ = ALLOC(TruthTableLine, 1); |
---|
1699 | (void)memset((void *)new_, 0, sizeof(TruthTableLine)); |
---|
1700 | new_->values = ALLOC(char,ni+1); |
---|
1701 | strcpy(new_->values, values); |
---|
1702 | if (line) { |
---|
1703 | cur = line; |
---|
1704 | while (cur->next) |
---|
1705 | cur = cur->next; |
---|
1706 | cur->next = new_; |
---|
1707 | } else |
---|
1708 | line = new_; |
---|
1709 | return(line); |
---|
1710 | } |
---|
1711 | |
---|
1712 | if (id % 2 == 0) |
---|
1713 | values[support[id]] = '1'; |
---|
1714 | else |
---|
1715 | values[support[id]] = '0'; |
---|
1716 | line = GetBlifBinary(line, dd, bdd_bdd_T(node), values, support, ni); |
---|
1717 | values[support[id]] = '-'; |
---|
1718 | line = GetBlifBinary(line, dd, bdd_bdd_E(node), values, support, ni); |
---|
1719 | values[support[id]] = '-'; |
---|
1720 | return(line); |
---|
1721 | } |
---|
1722 | |
---|
1723 | |
---|
1724 | /**Function******************************************************************** |
---|
1725 | |
---|
1726 | Synopsis [Returns the complemented TruthTableLine only for the first one.] |
---|
1727 | |
---|
1728 | Description [Returns the complemented TruthTableLine only for the first one.] |
---|
1729 | |
---|
1730 | SideEffects [] |
---|
1731 | |
---|
1732 | SeeAlso [] |
---|
1733 | |
---|
1734 | ******************************************************************************/ |
---|
1735 | static TruthTableLine * |
---|
1736 | GetComplementOneLine(TruthTableLine *line, |
---|
1737 | int ni, |
---|
1738 | int flag) |
---|
1739 | { |
---|
1740 | int i; |
---|
1741 | TruthTableLine *new_line, *start, *last; |
---|
1742 | |
---|
1743 | start = last = (TruthTableLine *)NULL; |
---|
1744 | |
---|
1745 | for (i = 0; i < ni; i++) { |
---|
1746 | if (line->values[i] != '-') { |
---|
1747 | new_line = GetTautologyLine(ni); |
---|
1748 | if (line->values[i] == '1') |
---|
1749 | new_line->values[i] = '0'; |
---|
1750 | else |
---|
1751 | new_line->values[i] = '1'; |
---|
1752 | if (last) { |
---|
1753 | last->next = new_line; |
---|
1754 | last = new_line; |
---|
1755 | } else |
---|
1756 | start = last = new_line; |
---|
1757 | } |
---|
1758 | } |
---|
1759 | |
---|
1760 | if (flag) { |
---|
1761 | FREE(line->values); |
---|
1762 | FREE(line); |
---|
1763 | } |
---|
1764 | |
---|
1765 | return(start); |
---|
1766 | } |
---|
1767 | |
---|
1768 | |
---|
1769 | /**Function******************************************************************** |
---|
1770 | |
---|
1771 | Synopsis [Returns the complemented TruthTableLine.] |
---|
1772 | |
---|
1773 | Description [Returns the complemented TruthTableLine.] |
---|
1774 | |
---|
1775 | SideEffects [] |
---|
1776 | |
---|
1777 | SeeAlso [] |
---|
1778 | |
---|
1779 | ******************************************************************************/ |
---|
1780 | static TruthTableLine * |
---|
1781 | GetComplementLines(TruthTableLine *lines, |
---|
1782 | int ni, |
---|
1783 | int flag) |
---|
1784 | { |
---|
1785 | TruthTableLine *first, *cur, *next; |
---|
1786 | |
---|
1787 | if (!lines) |
---|
1788 | return(lines); |
---|
1789 | |
---|
1790 | first = lines; |
---|
1791 | cur = first->next; |
---|
1792 | first = GetComplementOneLine(first, ni, flag); |
---|
1793 | while (cur) { |
---|
1794 | next = cur->next; |
---|
1795 | cur = GetComplementOneLine(cur, ni, flag); |
---|
1796 | first = GetAndLines(first, cur, ni, flag); |
---|
1797 | cur = next; |
---|
1798 | } |
---|
1799 | return(first); |
---|
1800 | } |
---|
1801 | |
---|
1802 | |
---|
1803 | /**Function******************************************************************** |
---|
1804 | |
---|
1805 | Synopsis [Returns the result of Boolean AND for two TruthTableLine.] |
---|
1806 | |
---|
1807 | Description [Returns the result of Boolean AND for two TruthTableLine.] |
---|
1808 | |
---|
1809 | SideEffects [] |
---|
1810 | |
---|
1811 | SeeAlso [] |
---|
1812 | |
---|
1813 | ******************************************************************************/ |
---|
1814 | static TruthTableLine * |
---|
1815 | GetAndLines(TruthTableLine *line1, |
---|
1816 | TruthTableLine *line2, |
---|
1817 | int ni, |
---|
1818 | int flag) |
---|
1819 | { |
---|
1820 | int i; |
---|
1821 | TruthTableLine *cur1, *cur2, *next1, *next2; |
---|
1822 | TruthTableLine *start, *last; |
---|
1823 | TruthTableLine *new_line; |
---|
1824 | |
---|
1825 | start = last = (TruthTableLine *)NULL; |
---|
1826 | |
---|
1827 | cur1 = line1; |
---|
1828 | while (cur1) { |
---|
1829 | next1 = cur1->next; |
---|
1830 | cur2 = line2; |
---|
1831 | while (cur2) { |
---|
1832 | new_line = GetTautologyLine(ni); |
---|
1833 | strcpy(new_line->values, cur1->values); |
---|
1834 | for (i = 0; i < ni; i++) { |
---|
1835 | if (cur2->values[i] != '-') |
---|
1836 | new_line->values[i] = cur2->values[i]; |
---|
1837 | } |
---|
1838 | if (last) { |
---|
1839 | last->next = new_line; |
---|
1840 | last = new_line; |
---|
1841 | } else { |
---|
1842 | start = last = new_line; |
---|
1843 | } |
---|
1844 | cur2 = cur2->next; |
---|
1845 | } |
---|
1846 | if (flag) { |
---|
1847 | FREE(cur1->values); |
---|
1848 | FREE(cur1); |
---|
1849 | } |
---|
1850 | cur1 = next1; |
---|
1851 | } |
---|
1852 | |
---|
1853 | if (flag) { |
---|
1854 | cur2 = line2; |
---|
1855 | while (cur2) { |
---|
1856 | next2 = cur2->next; |
---|
1857 | FREE(cur2->values); |
---|
1858 | FREE(cur2); |
---|
1859 | cur2 = next2; |
---|
1860 | } |
---|
1861 | } |
---|
1862 | |
---|
1863 | return(start); |
---|
1864 | } |
---|
1865 | |
---|
1866 | |
---|
1867 | /**Function******************************************************************** |
---|
1868 | |
---|
1869 | Synopsis [Returns the node or the complement node of a tree.] |
---|
1870 | |
---|
1871 | Description [Returns the node or the complement node of a tree.] |
---|
1872 | |
---|
1873 | SideEffects [] |
---|
1874 | |
---|
1875 | SeeAlso [] |
---|
1876 | |
---|
1877 | ******************************************************************************/ |
---|
1878 | static bdd_node * |
---|
1879 | GetDdNodeOfMlTree(MlTree *tree, |
---|
1880 | int comp) |
---|
1881 | { |
---|
1882 | if (comp) |
---|
1883 | return(tree->complement); |
---|
1884 | return(tree->node); |
---|
1885 | } |
---|
1886 | |
---|
1887 | /**Function******************************************************************** |
---|
1888 | |
---|
1889 | Synopsis [Gets the node name of a tree.] |
---|
1890 | |
---|
1891 | Description [Gets the node name of a tree. Return value shows polarity; |
---|
1892 | 0 means positive node and 1 means negative.] |
---|
1893 | |
---|
1894 | SideEffects [] |
---|
1895 | |
---|
1896 | SeeAlso [] |
---|
1897 | |
---|
1898 | ******************************************************************************/ |
---|
1899 | static int |
---|
1900 | GetMlTreeName(Ntk_Network_t *net, |
---|
1901 | bdd_node **ofuncs, |
---|
1902 | MlTree *tree, |
---|
1903 | char *name) |
---|
1904 | { |
---|
1905 | int i, no; |
---|
1906 | int polarity = 0; /* positive */ |
---|
1907 | |
---|
1908 | no = Ntk_NetworkReadNumCombOutputs(net) - Ntk_NetworkReadNumLatches(net); |
---|
1909 | for (i = 0; i < no; i++) { |
---|
1910 | if (tree->node == ofuncs[i]) { |
---|
1911 | sprintf(name, "%s", SynthGetIthOutputName(i)); |
---|
1912 | break; |
---|
1913 | } |
---|
1914 | } |
---|
1915 | if (i == no) { |
---|
1916 | if (tree->pi) |
---|
1917 | polarity = SynthGetPrimaryNodeName(net, tree->node, name); |
---|
1918 | else |
---|
1919 | SynthGetInternalNodeName(name, tree->id); |
---|
1920 | } |
---|
1921 | |
---|
1922 | return(polarity); |
---|
1923 | } |
---|
1924 | |
---|
1925 | /**Function******************************************************************** |
---|
1926 | |
---|
1927 | Synopsis [Gets the original name of a tree.] |
---|
1928 | |
---|
1929 | Description [Gets the original name of a tree.] |
---|
1930 | |
---|
1931 | SideEffects [] |
---|
1932 | |
---|
1933 | SeeAlso [] |
---|
1934 | |
---|
1935 | ******************************************************************************/ |
---|
1936 | static char ** |
---|
1937 | GetAllVarNameArray(bdd_manager *dd) |
---|
1938 | { |
---|
1939 | int size, i, j; |
---|
1940 | mvar_type var; |
---|
1941 | char **nameArray, *name; |
---|
1942 | |
---|
1943 | size = bdd_num_vars(dd); |
---|
1944 | nameArray = ALLOC(char *, size); |
---|
1945 | if (!nameArray) |
---|
1946 | return(NIL(char *)); |
---|
1947 | |
---|
1948 | for (i = 0; i < size; i++) { |
---|
1949 | var = mdd_get_var_by_id(dd, i); |
---|
1950 | name = ALLOC(char, strlen(var.name) + 1); |
---|
1951 | if (!name) { |
---|
1952 | for (j = 0; j < i; j++) |
---|
1953 | FREE(nameArray[j]); |
---|
1954 | FREE(nameArray); |
---|
1955 | return(NIL(char *)); |
---|
1956 | } |
---|
1957 | strcpy(name, var.name); |
---|
1958 | nameArray[i] = name; |
---|
1959 | } |
---|
1960 | |
---|
1961 | return(nameArray); |
---|
1962 | } |
---|