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