| [14] | 1 | /**CFile*********************************************************************** |
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| 2 | |
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| 3 | FileName [maigUtil.c] |
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| 4 | |
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| 5 | PackageName [maig] |
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| 6 | |
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| 7 | Synopsis [Utilities for Multi-Valued AndInv graph] |
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| 8 | |
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| 9 | Author [Mohammad Awedh] |
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| 10 | |
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| 11 | Copyright [ This file was created at the University of Colorado at |
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| 12 | Boulder. The University of Colorado at Boulder makes no warranty |
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| 13 | about the suitability of this software for any purpose. It is |
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| 14 | presented on an AS IS basis.] |
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| 15 | |
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| 16 | ******************************************************************************/ |
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| 17 | |
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| 18 | #include "maigInt.h" |
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| 19 | #include "mvfaig.h" |
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| 20 | #include "mvfaigInt.h" |
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| 21 | #include "ctlspInt.h" |
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| 22 | #include "ctlsp.h" |
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| 23 | #include "ntk.h" |
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| 24 | |
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| 25 | static char rcsid[] UNUSED = "$Id: maigUtil.c,v 1.20 2005/05/18 18:11:59 jinh Exp $"; |
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| 26 | |
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| 27 | /*---------------------------------------------------------------------------*/ |
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| 28 | /* Constant declarations */ |
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| 29 | /*---------------------------------------------------------------------------*/ |
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| 30 | |
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| 31 | /*---------------------------------------------------------------------------*/ |
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| 32 | /* Stucture declarations */ |
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| 33 | /*---------------------------------------------------------------------------*/ |
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| 34 | |
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| 35 | |
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| 36 | /*---------------------------------------------------------------------------*/ |
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| 37 | /* Type declarations */ |
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| 38 | /*---------------------------------------------------------------------------*/ |
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| 39 | |
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| 40 | |
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| 41 | /*---------------------------------------------------------------------------*/ |
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| 42 | /* Variable declarations */ |
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| 43 | /*---------------------------------------------------------------------------*/ |
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| 44 | |
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| 45 | |
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| 46 | /*---------------------------------------------------------------------------*/ |
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| 47 | /* Macro declarations */ |
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| 48 | /*---------------------------------------------------------------------------*/ |
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| 49 | |
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| 50 | |
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| 51 | /**AutomaticStart*************************************************************/ |
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| 52 | |
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| 53 | /*---------------------------------------------------------------------------*/ |
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| 54 | /* Static function prototypes */ |
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| 55 | /*---------------------------------------------------------------------------*/ |
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| 56 | |
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| 57 | static int NoOfBitEncode(int n); |
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| 58 | static bAigEdge_t Case(mAig_Manager_t * mgr, array_t * encodeList, int index); |
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| 59 | static int mCommandmAigTest(void); |
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| 60 | |
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| 61 | /**AutomaticEnd***************************************************************/ |
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| 62 | |
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| 63 | |
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| 64 | /*---------------------------------------------------------------------------*/ |
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| 65 | /* Definition of exported functions */ |
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| 66 | /*---------------------------------------------------------------------------*/ |
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| 67 | |
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| 68 | /**Function******************************************************************** |
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| 69 | |
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| 70 | Synopsis [Initialize maig package] |
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| 71 | |
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| 72 | SideEffects [none] |
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| 73 | |
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| 74 | SeeAlso [mAig_End] |
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| 75 | |
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| 76 | ******************************************************************************/ |
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| 77 | void |
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| 78 | mAig_Init(void) |
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| 79 | { |
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| 80 | Cmd_CommandAdd("_mAig_test", |
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| 81 | (int(*)(Hrc_Manager_t **, int, char **)) mCommandmAigTest, |
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| 82 | 0); |
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| 83 | } |
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| 84 | |
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| 85 | |
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| 86 | /**Function******************************************************************** |
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| 87 | |
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| 88 | Synopsis [End maig package] |
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| 89 | |
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| 90 | SideEffects [] |
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| 91 | |
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| 92 | SeeAlso [mAig_Init] |
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| 93 | |
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| 94 | ******************************************************************************/ |
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| 95 | void |
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| 96 | mAig_End(void) |
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| 97 | { |
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| 98 | } |
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| 99 | |
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| 100 | /**Function******************************************************************** |
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| 101 | |
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| 102 | Synopsis [] |
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| 103 | |
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| 104 | Description [] |
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| 105 | |
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| 106 | SideEffects [] |
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| 107 | |
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| 108 | ******************************************************************************/ |
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| 109 | array_t * |
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| 110 | mAig_ArrayDuplicate( |
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| 111 | array_t *mAigArray) |
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| 112 | { |
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| 113 | int i; |
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| 114 | int length = array_n(mAigArray); |
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| 115 | array_t *result = array_alloc(mAigEdge_t *, length); |
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| 116 | for (i = 0; i < length; i++) { |
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| 117 | mAigEdge_t *tempMAig = array_fetch(mAigEdge_t *, mAigArray, i); |
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| 118 | array_insert(mAigEdge_t *, result, i, tempMAig); |
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| 119 | } |
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| 120 | |
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| 121 | return (result); |
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| 122 | } |
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| 123 | |
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| 124 | /**Function******************************************************************** |
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| 125 | |
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| 126 | Synopsis [Creates a new mAig manager] |
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| 127 | |
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| 128 | SideEffects [] |
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| 129 | |
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| 130 | SeeAlso [] |
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| 131 | |
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| 132 | ******************************************************************************/ |
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| 133 | mAig_Manager_t * |
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| 134 | mAig_initAig(void) |
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| 135 | { |
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| 136 | return bAig_initAig(5000); /* Initial number of nodes in the bAIG greaph*/ |
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| 137 | } |
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| 138 | |
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| 139 | /**Function******************************************************************** |
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| 140 | |
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| 141 | Synopsis [Quit mAig manager] |
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| 142 | |
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| 143 | SideEffects [] |
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| 144 | |
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| 145 | SeeAlso [] |
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| 146 | |
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| 147 | ******************************************************************************/ |
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| 148 | void |
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| 149 | mAig_quit( |
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| 150 | mAig_Manager_t *manager) |
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| 151 | { |
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| 152 | bAig_quit(manager); |
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| 153 | } |
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| 154 | |
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| 155 | /**Function******************************************************************** |
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| 156 | |
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| 157 | Synopsis [Build the binary representation of multi-valued variable that |
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| 158 | equal to constant.] |
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| 159 | |
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| 160 | Description [It builds the binary And/Inverter graph of a multi-valued |
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| 161 | variable of value equal to constant.] |
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| 162 | |
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| 163 | SideEffects [] |
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| 164 | |
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| 165 | SeeAlso [Case] |
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| 166 | |
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| 167 | ******************************************************************************/ |
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| 168 | mAigEdge_t |
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| 169 | mAig_EquC( |
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| 170 | mAig_Manager_t * mgr, |
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| 171 | mAigEdge_t mVarId, |
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| 172 | int constant) |
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| 173 | { |
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| 174 | array_t *mVarList = mAigReadMulVarList(mgr); |
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| 175 | mAigMvar_t mVar = array_fetch(mAigMvar_t, mVarList, mVarId); |
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| 176 | array_t *encodeList = array_alloc(bAigEdge_t, 0); |
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| 177 | int i; |
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| 178 | bAigEdge_t bVarId; |
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| 179 | for(i=0; i< mVar.values; i++){ |
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| 180 | if( i == constant){ |
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| 181 | array_insert_last(bAigEdge_t, encodeList, mAig_One); |
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| 182 | } |
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| 183 | else{ |
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| 184 | array_insert_last(bAigEdge_t, encodeList, mAig_Zero); |
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| 185 | } /* if */ |
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| 186 | } /* for */ |
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| 187 | bVarId = Case(mgr, encodeList, mVar.bVars + mVar.encodeLength-1); /* Build the bAig grpah */ |
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| 188 | array_free(encodeList); |
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| 189 | return bVarId; |
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| 190 | } |
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| 191 | |
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| 192 | /**Function******************************************************************** |
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| 193 | |
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| 194 | Synopsis [Creates Multi-valued Variable] |
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| 195 | |
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| 196 | Description [Creates Multi-valued variable of name 'name' and value 'value', |
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| 197 | and returns the Id for this variable. It creates the binary |
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| 198 | variable that are used to rpresent this multi-valued variable.] |
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| 199 | |
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| 200 | SideEffects [] |
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| 201 | |
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| 202 | SeeAlso [bAig_CreateVarNode] |
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| 203 | |
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| 204 | ******************************************************************************/ |
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| 205 | mAigEdge_t |
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| 206 | mAig_CreateVar( |
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| 207 | mAig_Manager_t * mgr, |
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| 208 | char * name, |
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| 209 | int value) |
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| 210 | { |
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| 211 | array_t *mVarList = mAigReadMulVarList(mgr); |
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| 212 | array_t *bVarList = mAigReadBinVarList(mgr); |
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| 213 | |
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| 214 | int noBits = NoOfBitEncode(value); |
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| 215 | int i, startBvar, startMvar; |
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| 216 | /* |
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| 217 | char bName[100]; |
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| 218 | */ |
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| 219 | char *bName = ALLOC(char, strlen(name) + 10); |
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| 220 | mAigMvar_t mVar; |
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| 221 | mAigBvar_t bVar; |
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| 222 | |
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| 223 | assert(mVarList != NIL(array_t)); |
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| 224 | assert(bVarList != NIL(array_t)); |
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| 225 | |
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| 226 | startBvar = array_n(bVarList); |
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| 227 | startMvar = array_n(mVarList); |
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| 228 | |
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| 229 | /* Create Multi-valued variable */ |
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| 230 | mVar.mVarId = startMvar; |
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| 231 | mVar.bVars = startBvar; |
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| 232 | mVar.values = value; |
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| 233 | mVar.name = name; |
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| 234 | mVar.encodeLength = noBits; |
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| 235 | |
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| 236 | array_insert_last(mAigMvar_t, mVarList, mVar); |
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| 237 | |
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| 238 | /* Create binary Variables of the Multi-valued variable */ |
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| 239 | for (i=0; i<noBits; i++){ |
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| 240 | sprintf(bName, "%s_%d", name, i); |
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| 241 | bVar.node = bAig_CreateVarNode(mgr, util_strsav(bName)); |
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| 242 | |
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| 243 | bVar.mVarId = mVar.mVarId; |
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| 244 | array_insert_last(mAigBvar_t, bVarList, bVar); |
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| 245 | } /* for */ |
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| 246 | return (mVar.mVarId); |
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| 247 | } |
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| 248 | |
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| 249 | /**Function******************************************************************** |
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| 250 | |
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| 251 | Synopsis [Creates Multi-valued Variable from multi-valued logic] |
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| 252 | |
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| 253 | Description [Creates Multi-valued variable of name 'name' and value 'value', |
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| 254 | and returns the Id for this variable. It creates the binary |
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| 255 | variable that are used to rpresent this multi-valued variable.] |
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| 256 | |
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| 257 | SideEffects [] |
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| 258 | |
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| 259 | SeeAlso [bAig_CreateVarNode] |
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| 260 | |
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| 261 | ******************************************************************************/ |
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| 262 | mAigEdge_t |
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| 263 | mAig_CreateVarFromAig( |
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| 264 | mAig_Manager_t * mgr, |
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| 265 | char * name, |
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| 266 | array_t *mvfAig) |
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| 267 | { |
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| 268 | array_t *mVarList = mAigReadMulVarList(mgr); |
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| 269 | array_t *bVarList = mAigReadBinVarList(mgr); |
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| 270 | |
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| 271 | int noBits, value, index1; |
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| 272 | int startBvar, startMvar; |
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| 273 | int i, j, divider, orFlag; |
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| 274 | bAigEdge_t v, resultOn, resultOff; |
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| 275 | mAigMvar_t mVar; |
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| 276 | mAigBvar_t bVar; |
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| 277 | |
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| 278 | assert(mVarList != NIL(array_t)); |
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| 279 | assert(bVarList != NIL(array_t)); |
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| 280 | |
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| 281 | value = array_n(mvfAig); |
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| 282 | noBits = NoOfBitEncode(value); |
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| 283 | startBvar = array_n(bVarList); |
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| 284 | startMvar = array_n(mVarList); |
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| 285 | |
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| 286 | /* Create Multi-valued variable */ |
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| 287 | mVar.mVarId = startMvar; |
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| 288 | mVar.bVars = startBvar; |
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| 289 | mVar.values = value; |
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| 290 | mVar.name = name; |
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| 291 | mVar.encodeLength = noBits; |
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| 292 | |
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| 293 | array_insert_last(mAigMvar_t, mVarList, mVar); |
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| 294 | |
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| 295 | for(i=0, index1=mVar.bVars; i<mVar.encodeLength; i++) { |
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| 296 | |
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| 297 | resultOn = bAig_Zero; |
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| 298 | resultOff = bAig_Zero; |
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| 299 | /* divider = (int)pow(2.0, (double)(i)); */ |
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| 300 | divider = (int)pow(2.0, (double)(mVar.encodeLength-i-1)); |
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| 301 | orFlag = 1; |
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| 302 | for(j=0; j<value; j++) { |
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| 303 | if(j%divider == 0)orFlag = !orFlag; |
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| 304 | v = array_fetch(bAigEdge_t, mvfAig, j); |
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| 305 | if(orFlag){ |
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| 306 | resultOn = bAig_Or(mgr, resultOn, v); |
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| 307 | } |
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| 308 | else { |
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| 309 | resultOff = bAig_Or(mgr, resultOff, v); |
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| 310 | } |
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| 311 | } |
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| 312 | bVar.node = resultOn; |
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| 313 | bVar.mVarId = mVar.mVarId; |
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| 314 | array_insert_last(mAigBvar_t, bVarList, bVar); |
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| 315 | index1++; |
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| 316 | } |
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| 317 | return (mVar.mVarId); |
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| 318 | } |
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| 319 | |
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| 320 | /*---------------------------------------------------------------------------*/ |
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| 321 | /* Definition of internal functions */ |
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| 322 | /*---------------------------------------------------------------------------*/ |
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| 323 | |
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| 324 | /**Function******************************************************************** |
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| 325 | |
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| 326 | Synopsis [Return the Binary Variables List] |
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| 327 | |
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| 328 | Description [] |
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| 329 | |
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| 330 | SideEffects [] |
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| 331 | |
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| 332 | SeeAlso [] |
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| 333 | |
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| 334 | ******************************************************************************/ |
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| 335 | array_t * |
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| 336 | mAigReadBinVarList( |
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| 337 | mAig_Manager_t * manager) |
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| 338 | { |
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| 339 | return (manager->bVarList); |
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| 340 | } |
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| 341 | |
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| 342 | /**Function******************************************************************** |
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| 343 | |
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| 344 | Synopsis [Retunrs the Multi-Valued variables List] |
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| 345 | |
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| 346 | Description [] |
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| 347 | |
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| 348 | SideEffects [] |
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| 349 | |
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| 350 | SeeAlso [] |
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| 351 | |
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| 352 | ******************************************************************************/ |
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| 353 | array_t * |
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| 354 | mAigReadMulVarList( |
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| 355 | mAig_Manager_t * manager) |
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| 356 | { |
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| 357 | return (manager->mVarList); |
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| 358 | } |
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| 359 | |
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| 360 | /*---------------------------------------------------------------------------*/ |
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| 361 | /* Definition of static functions */ |
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| 362 | /*---------------------------------------------------------------------------*/ |
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| 363 | |
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| 364 | |
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| 365 | /**Function******************************************************************** |
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| 366 | |
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| 367 | Synopsis [Returns no. of Bit encoding needed for n] |
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| 368 | |
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| 369 | Description [] |
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| 370 | |
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| 371 | SideEffects [] |
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| 372 | |
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| 373 | SeeAlso [] |
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| 374 | |
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| 375 | ******************************************************************************/ |
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| 376 | static int |
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| 377 | NoOfBitEncode( |
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| 378 | int n) |
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| 379 | { |
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| 380 | int i = 0; |
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| 381 | int j = 1; |
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| 382 | |
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| 383 | if (n < 2) return 1; /* Takes care of mv.values <= 1 */ |
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| 384 | |
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| 385 | while (j < n) { |
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| 386 | j = j * 2; |
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| 387 | i++; |
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| 388 | } |
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| 389 | return i; |
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| 390 | } |
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| 391 | |
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| 392 | |
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| 393 | /**Function******************************************************************** |
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| 394 | |
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| 395 | Synopsis [Returns the binary And/Inverter graph of a multi-valued |
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| 396 | variable.] |
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| 397 | |
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| 398 | Description [The encodingList array has bAig_Zero in all its entries except |
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| 399 | the enrty at which the multi-valued variable equal to the required value. |
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| 400 | At which the value is bAig_One.] |
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| 401 | |
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| 402 | SideEffects [] |
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| 403 | |
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| 404 | SeeAlso [mAig_EquC] |
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| 405 | |
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| 406 | ******************************************************************************/ |
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| 407 | static bAigEdge_t |
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| 408 | Case( |
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| 409 | mAig_Manager_t * mgr, |
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| 410 | array_t * encodeList, |
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| 411 | int index) |
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| 412 | { |
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| 413 | array_t *bVarList = mAigReadBinVarList(mgr); |
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| 414 | mAigBvar_t bVar; |
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| 415 | array_t *newEncodeList; |
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| 416 | int encodeLen = array_n(encodeList); |
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| 417 | bAigEdge_t andResult1, andResult2, orResult, result; |
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| 418 | bAigEdge_t node1, node2; |
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| 419 | int i; |
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| 420 | int count=0; |
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| 421 | |
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| 422 | if (encodeLen == 1){ |
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| 423 | return array_fetch(bAigEdge_t, encodeList, 0); |
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| 424 | } |
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| 425 | bVar = array_fetch(mAigBvar_t, bVarList, index); |
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| 426 | newEncodeList = array_alloc(bAigEdge_t, 0); |
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| 427 | |
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| 428 | for (i=0; i< (encodeLen/2); i++){ |
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| 429 | node1 = array_fetch(bAigEdge_t, encodeList, count++); |
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| 430 | node2 = array_fetch(bAigEdge_t, encodeList, count++); |
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| 431 | |
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| 432 | /* performs ITE operator */ |
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| 433 | andResult1 = bAig_And(mgr, bVar.node, node2); |
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| 434 | andResult2 = bAig_And(mgr, bAig_Not(bVar.node), node1); |
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| 435 | orResult = bAig_Or (mgr, andResult1, andResult2); |
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| 436 | |
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| 437 | array_insert_last(bAigEdge_t, newEncodeList, orResult); |
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| 438 | |
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| 439 | } |
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| 440 | if (encodeLen %2){ /* Odd */ |
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| 441 | node1 = array_fetch(bAigEdge_t, encodeList, count); |
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| 442 | array_insert_last(bAigEdge_t, newEncodeList, node1); |
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| 443 | } |
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| 444 | result = Case(mgr, newEncodeList, index-1); |
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| 445 | array_free(newEncodeList); |
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| 446 | return result; |
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| 447 | } |
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| 448 | |
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| 449 | |
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| 450 | /**Function******************************************************************** |
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| 451 | |
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| 452 | Synopsis [] |
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| 453 | |
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| 454 | CommandName [_mAig_test] |
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| 455 | |
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| 456 | SideEffects [] |
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| 457 | |
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| 458 | ******************************************************************************/ |
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| 459 | static int |
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| 460 | mCommandmAigTest(void) |
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| 461 | { |
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| 462 | array_t *mVarList; |
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| 463 | array_t *bVarList; |
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| 464 | |
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| 465 | MvfAig_Function_t * aa; |
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| 466 | MvfAig_Function_t * bb; |
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| 467 | MvfAig_Function_t * cc; |
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| 468 | |
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| 469 | mAigMvar_t mVar; |
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| 470 | mAigBvar_t bVar; |
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| 471 | |
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| 472 | int i; |
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| 473 | |
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| 474 | mAig_Manager_t *manager = mAig_initAig(); |
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| 475 | mAigEdge_t node1, node2, node3, node4, node5, node6; |
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| 476 | |
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| 477 | node1 = mAig_CreateVar(manager,"a",5); /* var a of 5 values */ |
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| 478 | node2 = mAig_CreateVar(manager,"b",6); /* var b of 6 values */ |
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| 479 | node3 = mAig_CreateVar(manager,"c",2); /* var c of 2 values */ |
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| 480 | |
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| 481 | aa = MvfAig_FunctionCreateFromVariable(manager, node1); |
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| 482 | bb = MvfAig_FunctionCreateFromVariable(manager, node2); |
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| 483 | cc = MvfAig_FunctionCreateFromVariable(manager, node3); |
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| 484 | |
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| 485 | mVarList = mAigReadMulVarList(manager); |
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| 486 | bVarList = mAigReadBinVarList(manager); |
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| 487 | fprintf(vis_stdout,"mValist: \n"); |
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| 488 | for (i=0; i< array_n(mVarList); i++){ |
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| 489 | mVar = array_fetch(mAigMvar_t, mVarList, i); |
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| 490 | fprintf(vis_stdout,"mVarId=%d name=%s bVarId=%d values:%d\n", mVar.mVarId, mVar.name, mVar.bVars, mVar.values); |
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| 491 | } |
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| 492 | |
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| 493 | fprintf(vis_stdout,"bValist: \n"); |
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| 494 | for (i=0; i< array_n(bVarList); i++){ |
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| 495 | bVar = array_fetch(mAigBvar_t, bVarList, i); |
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| 496 | fprintf(vis_stdout,"mVar ID=%d bVar ID=%ld \n", bVar.mVarId, bVar.node); |
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| 497 | } |
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| 498 | |
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| 499 | node4 = array_fetch(bAigEdge_t, aa, 3); |
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| 500 | node5 = array_fetch(bAigEdge_t, bb, 2); |
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| 501 | node6 = mAig_Or(manager, node4, node5); |
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| 502 | |
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| 503 | node4 = array_fetch(bAigEdge_t, cc, 0); |
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| 504 | node5 = bAig_Eq(manager, node6, node4); |
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| 505 | |
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| 506 | fprintf(vis_stdout,"%ld %ld %ld %ld %ld %ld\n",node1, node2, node3, node4, node5, node6); |
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| 507 | fprintf(vis_stdout,"Nodes Array:\n\n"); |
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| 508 | for (i=0; i< manager->nodesArraySize ; i++) |
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| 509 | fprintf(vis_stdout,"Node #%d value=%ld \n",i,manager->NodesArray[i]); |
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| 510 | |
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| 511 | fprintf(vis_stdout,"\n\nName List:\n"); |
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| 512 | for (i=0; i< 20; i++) |
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| 513 | fprintf(vis_stdout,"index %d Name %s \n",i, manager->nameList[i]); |
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| 514 | |
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| 515 | bAig_PrintDot(vis_stdout, manager); |
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| 516 | |
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| 517 | return 0; |
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| 518 | |
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| 519 | } |
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