[14] | 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.] |
---|
| 473 | |
---|
| 474 | SideEffects [] |
---|
| 475 | |
---|
| 476 | SeeAlso [] |
---|
| 477 | |
---|
| 478 | ******************************************************************************/ |
---|
| 479 | void |
---|
| 480 | SynthSetInternalNodePrefix(char *prefix) |
---|
| 481 | { |
---|
| 482 | if (prefix) |
---|
| 483 | InternalNodePrefix = prefix; |
---|
| 484 | else |
---|
| 485 | InternalNodePrefix = DefaultPrefix; |
---|
| 486 | } |
---|
| 487 | |
---|
| 488 | |
---|
| 489 | /**Function******************************************************************** |
---|
| 490 | |
---|
| 491 | Synopsis [Creates a st_table to keep all node names for primary |
---|
| 492 | input, primary output, latch input and output nodes.] |
---|
| 493 | |
---|
| 494 | Description [Creates a st_table to keep all node names for primary |
---|
| 495 | input, primary output, latch input and output nodes. This table is used |
---|
| 496 | when we make internal node names, to see if there is a same name.] |
---|
| 497 | |
---|
| 498 | SideEffects [] |
---|
| 499 | |
---|
| 500 | SeeAlso [SynthFreeNodeNameTable SynthGetInternalNodeName] |
---|
| 501 | |
---|
| 502 | ******************************************************************************/ |
---|
| 503 | void |
---|
| 504 | SynthSetupNodeNameTable(Ntk_Network_t *net) |
---|
| 505 | { |
---|
| 506 | lsGen gen; |
---|
| 507 | Ntk_Node_t *node; |
---|
| 508 | |
---|
| 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, |
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| 1903 | char *name) |
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| 1904 | { |
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| 1905 | int i, no; |
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| 1906 | int polarity = 0; /* positive */ |
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| 1907 | |
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| 1908 | no = Ntk_NetworkReadNumCombOutputs(net) - Ntk_NetworkReadNumLatches(net); |
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| 1909 | for (i = 0; i < no; i++) { |
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| 1910 | if (tree->node == ofuncs[i]) { |
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| 1911 | sprintf(name, "%s", SynthGetIthOutputName(i)); |
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| 1912 | break; |
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| 1913 | } |
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| 1914 | } |
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| 1915 | if (i == no) { |
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| 1916 | if (tree->pi) |
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| 1917 | polarity = SynthGetPrimaryNodeName(net, tree->node, name); |
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| 1918 | else |
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| 1919 | SynthGetInternalNodeName(name, tree->id); |
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| 1920 | } |
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| 1921 | |
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| 1922 | return(polarity); |
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| 1923 | } |
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| 1924 | |
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| 1925 | /**Function******************************************************************** |
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| 1926 | |
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| 1927 | Synopsis [Gets the original name of a tree.] |
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| 1928 | |
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| 1929 | Description [Gets the original name of a tree.] |
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| 1930 | |
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| 1931 | SideEffects [] |
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| 1932 | |
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| 1933 | SeeAlso [] |
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| 1934 | |
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| 1935 | ******************************************************************************/ |
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| 1936 | static char ** |
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| 1937 | GetAllVarNameArray(bdd_manager *dd) |
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| 1938 | { |
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| 1939 | int size, i, j; |
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| 1940 | mvar_type var; |
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| 1941 | char **nameArray, *name; |
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| 1942 | |
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| 1943 | size = bdd_num_vars(dd); |
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| 1944 | nameArray = ALLOC(char *, size); |
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| 1945 | if (!nameArray) |
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| 1946 | return(NIL(char *)); |
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| 1947 | |
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| 1948 | for (i = 0; i < size; i++) { |
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| 1949 | var = mdd_get_var_by_id(dd, i); |
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| 1950 | name = ALLOC(char, strlen(var.name) + 1); |
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| 1951 | if (!name) { |
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| 1952 | for (j = 0; j < i; j++) |
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| 1953 | FREE(nameArray[j]); |
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| 1954 | FREE(nameArray); |
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| 1955 | return(NIL(char *)); |
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| 1956 | } |
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| 1957 | strcpy(name, var.name); |
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| 1958 | nameArray[i] = name; |
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| 1959 | } |
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| 1960 | |
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| 1961 | return(nameArray); |
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| 1962 | } |
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