[14] | 1 | /**CFile*********************************************************************** |
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| 2 | |
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| 3 | FileName [ ioWriteBlif.c ] |
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| 4 | |
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| 5 | PackageName [ io ] |
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| 6 | |
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| 7 | Synopsis [ This file contains blifmv -> blif write routines ] |
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| 8 | |
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| 9 | Description [ Routines for (determinizing, encoding and) writing a blifmv table |
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| 10 | into a blif description are provided. The encoding of multivalued |
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| 11 | vars is written to separate files. ] |
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| 12 | |
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| 13 | SeeAlso [ ioReadBlifmv.c, ioWriteBlifIo.c, IoWriteBlifUtil.c] |
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| 14 | |
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| 15 | Author [ Sunil P. Khatri ] |
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| 16 | |
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| 17 | Copyright [Copyright (c) 1994-1996 The Regents of the Univ. of California. |
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| 18 | All rights reserved. |
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| 19 | |
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| 20 | Permission is hereby granted, without written agreement and without license |
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| 21 | or royalty fees, to use, copy, modify, and distribute this software and its |
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| 22 | documentation for any purpose, provided that the above copyright notice and |
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| 23 | the following two paragraphs appear in all copies of this software. |
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| 24 | |
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| 25 | IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR |
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| 26 | DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT |
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| 27 | OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF |
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| 28 | CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 29 | |
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| 30 | THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, |
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| 31 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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| 32 | FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN |
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| 33 | "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE |
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| 34 | MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.] |
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| 35 | |
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| 36 | ******************************************************************************/ |
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| 37 | |
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| 38 | #include "ioInt.h" |
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| 39 | |
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| 40 | static char rcsid[] UNUSED = "$Id: ioWriteBlif.c,v 1.14 2005/04/29 14:23:29 fabio Exp $"; |
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| 41 | |
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| 42 | /*---------------------------------------------------------------------------*/ |
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| 43 | /* Constant declarations */ |
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| 44 | /*---------------------------------------------------------------------------*/ |
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| 45 | #define MAX_NUMBER_BDD_VARS 500 |
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| 46 | |
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| 47 | /*---------------------------------------------------------------------------*/ |
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| 48 | /* Macro declarations */ |
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| 49 | /*---------------------------------------------------------------------------*/ |
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| 50 | |
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| 51 | |
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| 52 | |
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| 53 | /**AutomaticStart*************************************************************/ |
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| 54 | |
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| 55 | /*---------------------------------------------------------------------------*/ |
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| 56 | /* Static function prototypes */ |
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| 57 | /*---------------------------------------------------------------------------*/ |
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| 58 | |
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| 59 | static int _IoTableWriteBlif(Io_Encoding_Type_t encodingType, Hrc_Node_t *hnode, Tbl_Table_t *origBlifmvTable, st_table *blifInputsStTable, FILE *fp, FILE *encFp, int verbosity); |
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| 60 | static int _IoMakeInitialEncodings(IoBlifInfo_t *blifInfo, Hrc_Node_t *hnode); |
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| 61 | static void _IoDeterminizeEncodeOutputPart(IoBlifInfo_t *blifInfo, st_table *blifInputsStTable); |
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| 62 | static void _IoDeterminizeEncodeRows(IoBlifInfo_t *blifInfo, st_table *blifInputsStTable); |
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| 63 | static void _IoMakeDcTables(IoBlifInfo_t *blifInfo); |
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| 64 | static void _IoMakeBinTable(IoBlifInfo_t *blifInfo); |
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| 65 | static int _IoCheckHnodeTreeIsBooleanAndDeterministic(mdd_manager **mddMgr, Hrc_Node_t *hnode, st_table *modelTable, boolean *pSymVarsPresent, int verbosity); |
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| 66 | static int _IoCheckHnodeVarsAreBoolean(Hrc_Node_t *hnode, boolean *pSymVarsPresent); |
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| 67 | static int _IoCheckHnodeLatchResetIsConstant(Hrc_Node_t *hnode); |
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| 68 | static int _IoCheckHnodeTablesAreDeterministic(mdd_manager **mddMgr, Hrc_Node_t *hnode); |
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| 69 | static void _MddManagerResetIfNecessary(mdd_manager **mddMgr); |
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| 70 | static void _IoHnodeWriteBlifRecursively(Io_Encoding_Type_t encodingType, Hrc_Node_t *hnode, st_table *modelTable, FILE *fp, FILE *encFp, int verbosity); |
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| 71 | static int _IoHnodeWriteBlifRecursivelyStep(Io_Encoding_Type_t encodingType, Hrc_Node_t *hnode, FILE *fp, FILE *encFp, int verbosity); |
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| 72 | static int _IoCheckHnodeIsBooleanAndDeterministic(mdd_manager **mddMgr, Hrc_Node_t *hnode, boolean *pSymVarsPresent); |
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| 73 | static int _IoCheckPseudoinputIsPO(Tbl_Table_t *table); |
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| 74 | |
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| 75 | /**AutomaticEnd***************************************************************/ |
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| 76 | |
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| 77 | |
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| 78 | /*---------------------------------------------------------------------------*/ |
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| 79 | /* Definition of exported functions */ |
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| 80 | /*---------------------------------------------------------------------------*/ |
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| 81 | |
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| 82 | /**Function*********************************************************** |
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| 83 | |
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| 84 | |
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| 85 | Synopsis [ Recursively write out the entire hierarchy below the current |
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| 86 | hnode to a blif file. ] |
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| 87 | |
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| 88 | Description [ This routine recursively writes out the entire hierarchy below |
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| 89 | the given hnode to a named blif file. This sub-hierarchy must |
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| 90 | comply with the following restrictions. First all tables in it |
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| 91 | should be deterministic. Secondly, all variables should be |
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| 92 | binary. The function returns a 0 upon success, 1 in case of |
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| 93 | failure. Upon failure, appropriate error messages are printed |
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| 94 | to stderr. The function is passed an enumerated type called |
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| 95 | encodingType, only SIMPLE is supported. Refer to the description |
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| 96 | of Io_HnodeWriteBlif for more information on this. The hnode |
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| 97 | is passed, along with the file pointer fp, for the file into which |
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| 98 | the resulting blif network is to be written. A verbosity flag |
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| 99 | (valid values are between 0 and 2) causes intermediate information |
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| 100 | to be printed to stderr. |
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| 101 | ] |
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| 102 | |
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| 103 | SideEffects [ ] |
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| 104 | |
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| 105 | SeeAlso [ ] |
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| 106 | **********************************************************************/ |
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| 107 | int |
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| 108 | Io_HnodeWriteBlifTotal( |
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| 109 | Io_Encoding_Type_t encodingType, |
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| 110 | Hrc_Node_t *hnode, |
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| 111 | FILE *fp, |
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| 112 | int verbosity) |
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| 113 | { |
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| 114 | st_table *modelTable; |
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| 115 | Hrc_Manager_t *manager; |
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| 116 | mdd_manager *mddMgr; |
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| 117 | FILE *encFp; |
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| 118 | boolean symVarsPresent; |
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| 119 | |
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| 120 | manager = Hrc_NodeReadManager(hnode); |
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| 121 | modelTable = st_init_table(st_ptrcmp, st_ptrhash); |
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| 122 | mddMgr = mdd_init_empty(); |
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| 123 | bdd_dynamic_reordering(mddMgr, BDD_REORDER_SIFT, BDD_REORDER_VERBOSITY_DEFAULT); |
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| 124 | symVarsPresent = FALSE; |
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| 125 | |
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| 126 | /* check that the node and all its children are boolean and deterministic. */ |
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| 127 | if(_IoCheckHnodeTreeIsBooleanAndDeterministic(&mddMgr, hnode, modelTable, &symVarsPresent, verbosity)){ |
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| 128 | mdd_quit(mddMgr); |
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| 129 | st_free_table(modelTable); |
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| 130 | return 1; |
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| 131 | } |
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| 132 | if(verbosity > 0){ |
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| 133 | fprintf(vis_stderr, "Done with hierarcy checks\n"); |
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| 134 | } |
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| 135 | |
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| 136 | if(symVarsPresent == TRUE){ |
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| 137 | fprintf(vis_stderr, "Warning - some variables in the hierarchy are symbolic\n"); |
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| 138 | } |
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| 139 | |
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| 140 | st_free_table(modelTable); |
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| 141 | modelTable = st_init_table(st_ptrcmp, st_ptrhash); |
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| 142 | encFp = Cmd_FileOpen("/dev/null", "w", NIL(char *), 1); |
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| 143 | |
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| 144 | _IoHnodeWriteBlifRecursively(encodingType, hnode, modelTable, fp, encFp, verbosity); |
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| 145 | Hrc_ManagerSetCurrentNode(manager, hnode); |
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| 146 | |
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| 147 | st_free_table(modelTable); |
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| 148 | mdd_quit(mddMgr); |
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| 149 | return 0; |
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| 150 | } |
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| 151 | |
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| 152 | |
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| 153 | /**Function*********************************************************** |
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| 154 | |
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| 155 | |
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| 156 | Synopsis [ Determinize, encode and write all blifmv tables in a hnode |
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| 157 | to a blif file. Also writes all encoding information to a |
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| 158 | encoding file. This encoding file can later be read in, along |
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| 159 | with the blif file (potentially after optimization in SIS), |
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| 160 | into that hnode (see "read_blif -i" for details). Currently, only the |
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| 161 | combinational part of the hnode is written to the blif file.] |
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| 162 | |
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| 163 | Description [ This routine determinizes, encodes and writes all blifmv tables |
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| 164 | in a hnode to a named blif file. |
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| 165 | It also writes encoding information to another named file. |
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| 166 | This encoding file must be used while reading back the (optimized) |
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| 167 | blif file into blifmv. |
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| 168 | The function returns a 0 upon success, 1 in case of failure. It |
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| 169 | should be supplied a Io_Encoding_Type_t. Currently only SIMPLE is |
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| 170 | supported. Under this scheme, binary encoding is done on the |
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| 171 | multi-valued variables, and the binary variable with smallest length |
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| 172 | is chosen at any step of the determinization process. Other parameters |
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| 173 | to this function include a Hrc_Node_t *, and file pointers for the |
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| 174 | blif output file and the encoding file. The default blif file is |
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| 175 | stdout, and the default encoding file is <model>.enc. A verbosity flag |
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| 176 | (valid values are between 0 and 2) print intermediate information to |
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| 177 | stdout. |
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| 178 | ] |
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| 179 | |
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| 180 | SideEffects [ ] |
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| 181 | |
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| 182 | SeeAlso [ ] |
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| 183 | **********************************************************************/ |
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| 184 | int |
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| 185 | Io_HnodeWriteBlif( |
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| 186 | Io_Encoding_Type_t encodingType, |
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| 187 | Hrc_Node_t *hnode, |
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| 188 | FILE *fp, |
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| 189 | FILE *encFp, |
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| 190 | int verbosity, |
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| 191 | int combinationalOnly, |
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| 192 | int makeLatchIOsPOs) |
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| 193 | { |
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| 194 | Tbl_Table_t *table, *singleOutputTable; |
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| 195 | Tbl_Entry_t *entry; |
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| 196 | int i, j, k, numVal, numInputs, numOutputs; |
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| 197 | Var_Variable_t *var, *actualVar, *outputVar; |
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| 198 | char *name, *instanceName, *modelName, *newModelName; |
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| 199 | st_generator *gen; |
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| 200 | st_table *blifInputsStTable, *blifOutputsStTable, *printedMvsStTable; |
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| 201 | st_table *encOutputsStTable, *encInputsStTable; |
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| 202 | Hrc_Node_t *subcktHnode; |
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| 203 | Hrc_Model_t *model, *subcktModel; |
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| 204 | Hrc_Subckt_t *subckt; |
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| 205 | Hrc_Manager_t *manager; |
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| 206 | array_t *subcktActualInputVars, *subcktActualOutputVars; |
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| 207 | |
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| 208 | |
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| 209 | Hrc_NodeForEachNameTable(hnode, i, table){ |
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| 210 | if(_IoCheckPseudoinputIsPO(table)){ |
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| 211 | fprintf(stdout, "Hnode contains a pseudoinput which is also a primary output - quitting\n"); |
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| 212 | return 1; |
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| 213 | } |
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| 214 | for(j = 0; j < Tbl_TableReadNumOutputs(table); j++){ |
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| 215 | entry = Tbl_TableDefaultReadEntry(table, j); |
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| 216 | if(entry != NIL(Tbl_Entry_t)){ |
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| 217 | if(Tbl_EntryReadType(entry) == Tbl_EntryNormal_c){ |
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| 218 | if(Tbl_EntryReadNumValues(entry) > 1){ |
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| 219 | outputVar = Tbl_TableReadIndexVar(table, j, 1); |
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| 220 | (void)fprintf(stdout, "The table with %s as an output has non-singleton default values - quitting\n", Var_VariableReadName(outputVar)); |
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| 221 | return 1; |
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| 222 | } |
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| 223 | } |
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| 224 | else{ |
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| 225 | var = Tbl_EntryReadVar(table, entry); |
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| 226 | k = Tbl_TableReadVarIndex(table, var, 1); |
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| 227 | if(k<0){ |
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| 228 | outputVar = Tbl_TableReadIndexVar(table, j, 1); |
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| 229 | (void)fprintf(stdout, "Output %s has a default value that refers to an input variable - quitting\n", Var_VariableReadName(outputVar)); |
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| 230 | return 1; |
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| 231 | } |
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| 232 | } |
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| 233 | } |
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| 234 | } |
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| 235 | } |
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| 236 | |
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| 237 | printedMvsStTable = st_init_table(strcmp, st_strhash); |
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| 238 | |
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| 239 | if(!(combinationalOnly || makeLatchIOsPOs)){ |
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| 240 | fprintf(encFp,"# This encoding file and the blif file that was written out with it cannot\n"); |
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| 241 | fprintf(encFp,"# currently be read back into VIS. If you would like to read the blif and\n"); |
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| 242 | fprintf(encFp,"# encoding files back into VIS, then use the 'write_blif -l' or\n"); |
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| 243 | fprintf(encFp,"#'write_blif -c' options.\n"); |
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| 244 | } |
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| 245 | |
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| 246 | /* .model */ |
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| 247 | modelName = Hrc_NodeReadModelName(hnode); |
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| 248 | manager = Hrc_NodeReadManager(hnode); |
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| 249 | model = Hrc_ManagerFindModelByName(manager, modelName); |
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| 250 | newModelName = ALLOC(char, strlen(modelName) + 256); |
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| 251 | i = 0; |
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| 252 | sprintf(newModelName, "%s[%d]", modelName, i); |
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| 253 | |
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| 254 | while(Hrc_ManagerFindModelByName(manager, newModelName) != NIL(Hrc_Model_t)){ |
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| 255 | i++; |
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| 256 | sprintf(newModelName, "%s[%d]", modelName, i); |
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| 257 | } |
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| 258 | (void)fprintf(encFp,".model %s\n",newModelName); |
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| 259 | FREE(newModelName); |
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| 260 | /* .inputs line of enc file*/ |
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| 261 | if (Hrc_NodeReadNumFormalInputs(hnode) != 0){ |
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| 262 | (void)fprintf(encFp,".inputs "); |
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| 263 | Hrc_NodeForEachFormalInput(hnode,i,var){ |
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| 264 | (void)fprintf(encFp,"%s ",Var_VariableReadName(var)); |
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| 265 | } |
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| 266 | (void)fprintf(encFp,"\n"); |
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| 267 | } |
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| 268 | |
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| 269 | /* .outputs line of enc file*/ |
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| 270 | if (Hrc_NodeReadNumFormalOutputs(hnode) != 0){ |
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| 271 | (void)fprintf(encFp,".outputs "); |
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| 272 | Hrc_NodeForEachFormalOutput(hnode,i,var){ |
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| 273 | (void)fprintf(encFp,"%s ",Var_VariableReadName(var)); |
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| 274 | } |
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| 275 | (void)fprintf(encFp,"\n"); |
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| 276 | } |
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| 277 | |
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| 278 | /* .mv for primary inputs, printed to enc file*/ |
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| 279 | Hrc_NodeForEachFormalInput(hnode,i,var){ |
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| 280 | IoMvCheckPrint(encFp,var,printedMvsStTable); |
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| 281 | } |
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| 282 | /* .mv for primary outputs, printed to enc file*/ |
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| 283 | Hrc_NodeForEachFormalOutput(hnode,i,var){ |
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| 284 | IoMvCheckPrint(encFp,var,printedMvsStTable); |
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| 285 | } |
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| 286 | |
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| 287 | /* .subckt stuff */ |
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| 288 | Hrc_ModelForEachSubckt(model,gen,instanceName,subckt){ |
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| 289 | subcktModel = Hrc_SubcktReadModel(subckt); |
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| 290 | subcktHnode = Hrc_ModelReadMasterNode(subcktModel); |
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| 291 | subcktActualInputVars = Hrc_SubcktReadActualInputVars(subckt); |
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| 292 | subcktActualOutputVars = Hrc_SubcktReadActualOutputVars(subckt); |
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| 293 | |
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| 294 | /* .mv for subckt inputs */ |
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| 295 | for (i=0; i < array_n(subcktActualInputVars); i++){ |
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| 296 | var = array_fetch(Var_Variable_t *,subcktActualInputVars,i); |
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| 297 | IoMvCheckPrint(encFp,var,printedMvsStTable); |
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| 298 | } |
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| 299 | |
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| 300 | /* .mv for subckt outputs */ |
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| 301 | for (i=0; i < array_n(subcktActualOutputVars); i++){ |
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| 302 | var = array_fetch(Var_Variable_t *,subcktActualOutputVars,i); |
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| 303 | IoMvCheckPrint(encFp,var,printedMvsStTable); |
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| 304 | } |
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| 305 | |
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| 306 | /* .subckt declarations */ |
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| 307 | (void)fprintf(encFp,".subckt %s %s ", |
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| 308 | Hrc_ModelReadName(subcktModel), Hrc_SubcktReadInstanceName(subckt)); |
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| 309 | Hrc_NodeForEachFormalInput(subcktHnode,i,var){ |
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| 310 | actualVar = array_fetch(Var_Variable_t *,subcktActualInputVars,i); |
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| 311 | (void)fprintf(encFp,"%s = %s ",Var_VariableReadName(var),Var_VariableReadName(actualVar)); |
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| 312 | } |
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| 313 | Hrc_NodeForEachFormalOutput(subcktHnode,i,var){ |
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| 314 | actualVar = array_fetch(Var_Variable_t *,subcktActualOutputVars,i); |
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| 315 | (void)fprintf(encFp,"%s = %s ",Var_VariableReadName(var),Var_VariableReadName(actualVar)); |
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| 316 | } |
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| 317 | (void)fprintf(encFp,"\n"); |
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| 318 | } |
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| 319 | |
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| 320 | encOutputsStTable = st_init_table(st_ptrcmp, st_ptrhash); |
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| 321 | encInputsStTable = st_init_table(st_ptrcmp, st_ptrhash); |
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| 322 | blifInputsStTable = st_init_table(strcmp, st_strhash); |
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| 323 | blifOutputsStTable = st_init_table(strcmp, st_strhash); |
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| 324 | |
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| 325 | /* encoding tables to .enc file */ |
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| 326 | IoEncWriteMvToBinTables(hnode, encFp, encOutputsStTable, encInputsStTable, combinationalOnly); |
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| 327 | |
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| 328 | /* decoding tables to .enc file */ |
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| 329 | IoEncWriteBinToMvTables(hnode, encFp, encOutputsStTable, encInputsStTable, combinationalOnly, makeLatchIOsPOs); |
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| 330 | |
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| 331 | /* if write_blif called without -c or -l options, then print a warning saying |
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| 332 | that the files cant be read back into vis.. |
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| 333 | */ |
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| 334 | if(!(combinationalOnly || makeLatchIOsPOs)){ |
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| 335 | fprintf(fp,"# This blif file and the encoding file that was written out with it cannot\n"); |
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| 336 | fprintf(fp,"# currently be read back into VIS. If you would like to read the blif and\n"); |
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| 337 | fprintf(fp,"# encoding files back into VIS, then use the 'write_blif -l' or\n"); |
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| 338 | fprintf(fp,"#'write_blif -c' options.\n"); |
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| 339 | } |
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| 340 | |
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| 341 | /* .inputs declarations for blif file */ |
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| 342 | fprintf(fp,".model %s\n",modelName ); |
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| 343 | numInputs = IoBlifWriteInputs(hnode, fp, blifInputsStTable, combinationalOnly, makeLatchIOsPOs); |
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| 344 | |
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| 345 | /* .outputs declarations for blif file */ |
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| 346 | numOutputs = IoBlifWriteOutputs(hnode, fp, blifOutputsStTable, combinationalOnly, makeLatchIOsPOs); |
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| 347 | |
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| 348 | if((numInputs == 0) && (numOutputs != 0)){ |
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| 349 | fprintf(vis_stderr, "Warning: Blif file has zero inputs\n"); |
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| 350 | } |
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| 351 | if((numOutputs == 0) && (numInputs != 0)){ |
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| 352 | fprintf(vis_stderr, "Warning: Blif file has zero outputs\n"); |
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| 353 | } |
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| 354 | if((numInputs == 0) && (numOutputs == 0)){ |
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| 355 | fprintf(vis_stderr, "Warning: Blif file has zero inputs and zero outputs\n"); |
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| 356 | } |
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| 357 | |
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| 358 | /* .latch declarations for blif file */ |
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| 359 | IoWriteLatches(hnode, fp, encFp, printedMvsStTable, blifOutputsStTable, blifInputsStTable, encOutputsStTable, encInputsStTable, combinationalOnly, makeLatchIOsPOs, verbosity); |
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| 360 | Hrc_NodeForEachNameTable(hnode, i, table){ |
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| 361 | if((Tbl_TableReadNumInputs(table) == 0) && (Tbl_TableReadNumOutputs(table) > 1)){ |
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| 362 | (void)fprintf(stdout, "Warning: "); |
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| 363 | Tbl_TableForEachOutputVar(table, j, var){ |
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| 364 | (void)fprintf(stdout, "%s, ", Var_VariableReadName(var)); |
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| 365 | } |
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| 366 | (void)fprintf(stdout, "assumed to be pseudoinputs\n"); |
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| 367 | Tbl_TableForEachOutputVar(table, j, var){ |
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| 368 | singleOutputTable = Tbl_TableAlloc(); |
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| 369 | Tbl_TableAddColumn(singleOutputTable, var, 1); |
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| 370 | (void) Tbl_TableAddRow(singleOutputTable); |
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| 371 | entry = Tbl_EntryAlloc(Tbl_EntryNormal_c); |
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| 372 | numVal = Var_VariableReadNumValues(var); |
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| 373 | Tbl_EntrySetValue(entry, 0, numVal - 1); |
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| 374 | Tbl_TableSetEntry(singleOutputTable, entry, 0, 0, 1); |
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| 375 | _IoTableWriteBlif(encodingType, hnode, singleOutputTable, blifInputsStTable, fp, encFp, |
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| 376 | verbosity); |
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| 377 | Tbl_TableFree(singleOutputTable); |
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| 378 | } |
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| 379 | } |
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| 380 | else{ |
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| 381 | if(IoOutputExpansionRequired(table)){ |
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| 382 | if(verbosity > 0){ |
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| 383 | (void)fprintf(stdout, "Splitting into Single Output Table before Processing\n"); |
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| 384 | } |
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| 385 | for(j = 0; j < Tbl_TableReadNumOutputs(table); j++){ |
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| 386 | singleOutputTable = IoMakeSingleOutputTable(table, j); |
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| 387 | _IoTableWriteBlif(encodingType, hnode, singleOutputTable, blifInputsStTable, fp, encFp, |
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| 388 | verbosity); |
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| 389 | Tbl_TableFree(singleOutputTable); |
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| 390 | } |
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| 391 | } |
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| 392 | else{ |
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| 393 | if(!((Tbl_TableReadNumInputs(table) == 0) && (Tbl_TableReadNumOutputs(table) > 1))){ |
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| 394 | _IoTableWriteBlif(encodingType, hnode, table, blifInputsStTable, fp, encFp, |
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| 395 | verbosity); |
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| 396 | } |
---|
| 397 | } |
---|
| 398 | } |
---|
| 399 | } |
---|
| 400 | st_foreach_item_int(blifInputsStTable, gen, &name, &i){ |
---|
| 401 | FREE(name); |
---|
| 402 | } |
---|
| 403 | st_free_table(blifInputsStTable); |
---|
| 404 | st_foreach_item_int(blifOutputsStTable, gen, &name, &i){ |
---|
| 405 | FREE(name); |
---|
| 406 | } |
---|
| 407 | st_free_table(blifOutputsStTable); |
---|
| 408 | st_free_table(encInputsStTable); |
---|
| 409 | st_free_table(encOutputsStTable); |
---|
| 410 | st_foreach_item_int(printedMvsStTable, gen, &name, &i){ |
---|
| 411 | FREE(name); |
---|
| 412 | } |
---|
| 413 | st_free_table(printedMvsStTable); |
---|
| 414 | /* printing an empty .exdc network keeps sis from sweeping away the |
---|
| 415 | dummy buffers that latch outputs are made to drive as a result of the |
---|
| 416 | "write_blif -l" cmd. The dummy buffers were added because if they were |
---|
| 417 | not present, sis would introduce buffers whenever latch outputs drive POs |
---|
| 418 | directly (in the "xdc" command), ruining the name correspondence required |
---|
| 419 | for read_blif to work and reinstate mv latches. |
---|
| 420 | */ |
---|
| 421 | fprintf(fp,".exdc\n"); |
---|
| 422 | fprintf(fp,".end\n"); |
---|
| 423 | if(encFp != stdout){ |
---|
| 424 | (void) fclose(encFp); |
---|
| 425 | } |
---|
| 426 | return 0; |
---|
| 427 | } |
---|
| 428 | |
---|
| 429 | |
---|
| 430 | /*---------------------------------------------------------------------------*/ |
---|
| 431 | /* Definition of internal functions */ |
---|
| 432 | /*---------------------------------------------------------------------------*/ |
---|
| 433 | |
---|
| 434 | |
---|
| 435 | /*---------------------------------------------------------------------------*/ |
---|
| 436 | /* Definition of static functions */ |
---|
| 437 | /*---------------------------------------------------------------------------*/ |
---|
| 438 | |
---|
| 439 | |
---|
| 440 | /**Function*********************************************************** |
---|
| 441 | |
---|
| 442 | |
---|
| 443 | Synopsis [ Determinize, encode and write a blifmv table to blif file ] |
---|
| 444 | |
---|
| 445 | Description [ Note that this routine cannot handle the "=" construct of |
---|
| 446 | blifmv. It is my opinion that a front-end routine should be |
---|
| 447 | used to remove the "="'s. ] |
---|
| 448 | |
---|
| 449 | SideEffects [ ] |
---|
| 450 | |
---|
| 451 | SeeAlso [ ] |
---|
| 452 | **********************************************************************/ |
---|
| 453 | static int |
---|
| 454 | _IoTableWriteBlif( |
---|
| 455 | Io_Encoding_Type_t encodingType, |
---|
| 456 | Hrc_Node_t *hnode, |
---|
| 457 | Tbl_Table_t *origBlifmvTable, |
---|
| 458 | st_table *blifInputsStTable, |
---|
| 459 | FILE *fp, |
---|
| 460 | FILE *encFp, |
---|
| 461 | int verbosity ) |
---|
| 462 | { |
---|
| 463 | IoBlifInfo_t *blifInfo; |
---|
| 464 | |
---|
| 465 | blifInfo = ALLOC(IoBlifInfo_t, 1); |
---|
| 466 | if(verbosity > 1){ |
---|
| 467 | (void)fprintf(stdout, "Original Blifmv Table :\n"); |
---|
| 468 | Tbl_TableWriteBlifMvToFile(origBlifmvTable, 0, stdout); |
---|
| 469 | } |
---|
| 470 | IoInitBlifInfo(blifInfo, origBlifmvTable, fp, encFp, verbosity); |
---|
| 471 | if(encodingType == SIMPLE){ |
---|
| 472 | if(_IoMakeInitialEncodings(blifInfo, hnode)){ |
---|
| 473 | blifInfo->binTblArray = array_alloc(Tbl_Table_t *, 0); |
---|
| 474 | IoFreeBlifInfo(blifInfo); |
---|
| 475 | return 0; |
---|
| 476 | } |
---|
| 477 | _IoDeterminizeEncodeOutputPart(blifInfo, blifInputsStTable); |
---|
| 478 | _IoMakeBinTable(blifInfo); |
---|
| 479 | if(blifInfo->verbosity > 0){ |
---|
| 480 | (void)fprintf(stdout, "Done with Output Singletonization\n"); |
---|
| 481 | } |
---|
| 482 | if(blifInfo->verbosity > 1){ |
---|
| 483 | (void)fprintf(stdout, "Final Blifmv Table After Output Singletonization:\n"); |
---|
| 484 | Tbl_TableWriteBlifMvToFile(blifInfo->blifmvTable, 0, stdout); |
---|
| 485 | (void)fprintf(stdout, "Bin Table After Output Singletonization:\n"); |
---|
| 486 | Tbl_TableWriteBlifMvToFile(blifInfo->binTable, 0, stdout); |
---|
| 487 | } |
---|
| 488 | _IoDeterminizeEncodeRows(blifInfo, blifInputsStTable); |
---|
| 489 | if(blifInfo->verbosity > 0){ |
---|
| 490 | (void)fprintf(stdout, "Done with Row Intersection and Determinization\n"); |
---|
| 491 | } |
---|
| 492 | if(blifInfo->verbosity > 1){ |
---|
| 493 | (void)fprintf(stdout, "Final Bin Table After Determinization \n"); |
---|
| 494 | Tbl_TableWriteBlifMvToFile(blifInfo->binTable, 0, stdout); |
---|
| 495 | } |
---|
| 496 | _IoMakeDcTables(blifInfo); |
---|
| 497 | blifInfo->binTblArray = Tbl_TableSplit(blifInfo->binTable); |
---|
| 498 | IoWriteBinTablesToFile(blifInfo); |
---|
| 499 | IoFreeBlifInfo(blifInfo); |
---|
| 500 | return 0; |
---|
| 501 | } |
---|
| 502 | else{ |
---|
| 503 | (void)fprintf(vis_stderr, "This encoding strategy has not been implemented yet\n"); |
---|
| 504 | return 1; |
---|
| 505 | } |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | |
---|
| 509 | /**Function******************************************************************** |
---|
| 510 | |
---|
| 511 | Synopsis [Encodes variables based on their ranges] |
---|
| 512 | |
---|
| 513 | Description [Returns encodings in the form of an array of tables for each |
---|
| 514 | multivalued variable. ] |
---|
| 515 | |
---|
| 516 | SideEffects [Populates the array of tables describing the encoding] |
---|
| 517 | |
---|
| 518 | SeeAlso [] |
---|
| 519 | |
---|
| 520 | ******************************************************************************/ |
---|
| 521 | static int |
---|
| 522 | _IoMakeInitialEncodings( |
---|
| 523 | IoBlifInfo_t *blifInfo, |
---|
| 524 | Hrc_Node_t *hnode |
---|
| 525 | ) |
---|
| 526 | { |
---|
| 527 | Var_Variable_t *var, *origVar; |
---|
| 528 | int i, colnum, numRows, numValues, varRange, value, numEncBits; |
---|
| 529 | char *name, *varname, *dupName; |
---|
| 530 | Tbl_Entry_t *entry, *newEntry, *defEntry, *newDefEntry; |
---|
| 531 | lsGen gen; |
---|
| 532 | Tbl_Range_t *range; |
---|
| 533 | Tbl_Table_t *table, *origTable; |
---|
| 534 | |
---|
| 535 | if(Tbl_TableReadNumInputs(blifInfo->blifmvTable) == 0){ |
---|
| 536 | value = -1; |
---|
| 537 | if(Tbl_TableReadNumRows(blifInfo->blifmvTable) != 0){ |
---|
| 538 | entry = Tbl_TableReadEntry(blifInfo->blifmvTable, 0, 0, 1); |
---|
| 539 | numValues = Tbl_EntryReadNumValues(entry); |
---|
| 540 | } |
---|
| 541 | else{ |
---|
| 542 | entry = Tbl_TableDefaultReadEntry(blifInfo->blifmvTable, 0); |
---|
| 543 | numValues = Tbl_EntryReadNumValues(entry); |
---|
| 544 | } |
---|
| 545 | origTable = Tbl_TableHardDup(blifInfo->blifmvTable); |
---|
| 546 | |
---|
| 547 | if(Tbl_TableReadNumRows(blifInfo->blifmvTable) <= 1){ |
---|
| 548 | if(numValues == 1){ |
---|
| 549 | /* not a pseudoinput */ |
---|
| 550 | Tbl_EntryForEachValue(entry, value, gen, range); |
---|
| 551 | assert(value != -1); |
---|
| 552 | var = Tbl_TableReadIndexVar(blifInfo->blifmvTable, 0, 1); |
---|
| 553 | varRange = Var_VariableReadNumValues(var); |
---|
| 554 | numEncBits = IoNumEncBits(varRange); |
---|
| 555 | varname = Var_VariableReadName(var); |
---|
| 556 | for(i = numEncBits - 1; i >= 0; i--){ |
---|
| 557 | dupName = ALLOC(char, strlen(varname) + IoNumDigits(numEncBits) + 2); |
---|
| 558 | sprintf(dupName, "%s%d", varname, i); |
---|
| 559 | (void)fprintf(blifInfo->BlifFp, ".names %s\n", dupName); |
---|
| 560 | FREE(dupName); |
---|
| 561 | if(value > (int) pow((double) 2, (double) i)){ |
---|
| 562 | (void)fprintf(blifInfo->BlifFp, "1\n"); |
---|
| 563 | value -= (int) pow((double) 2, (double) i); |
---|
| 564 | } |
---|
| 565 | else{ |
---|
| 566 | (void)fprintf(blifInfo->BlifFp, "0\n"); |
---|
| 567 | } |
---|
| 568 | } |
---|
| 569 | Tbl_TableFree(origTable); |
---|
| 570 | return 1; |
---|
| 571 | } |
---|
| 572 | else{ |
---|
| 573 | /* is a pseudoinput! */ |
---|
| 574 | /* make it look like a table with many rows, and singleton output entries per row */ |
---|
| 575 | table = Tbl_TableAlloc(); |
---|
| 576 | |
---|
| 577 | Tbl_TableForEachOutputVar(blifInfo->blifmvTable, i, var){ |
---|
| 578 | Tbl_TableAddColumn(table, var, 1); |
---|
| 579 | } |
---|
| 580 | Tbl_TableForEachDefaultEntry(blifInfo->blifmvTable, defEntry, i) { |
---|
| 581 | if (defEntry != NIL(Tbl_Entry_t)) { |
---|
| 582 | newDefEntry = Tbl_EntryDup(defEntry); |
---|
| 583 | } |
---|
| 584 | else { |
---|
| 585 | newDefEntry = NIL(Tbl_Entry_t); |
---|
| 586 | } |
---|
| 587 | (void) Tbl_TableDefaultSetEntry(table, newDefEntry, i); |
---|
| 588 | } |
---|
| 589 | Tbl_EntryForEachValue(entry, value, gen, range){ |
---|
| 590 | i = Tbl_TableAddRow(table); |
---|
| 591 | newEntry = Tbl_EntryAlloc(Tbl_EntryNormal_c); |
---|
| 592 | Tbl_EntrySetValue(newEntry, value, value); |
---|
| 593 | Tbl_TableSetEntry(table, newEntry, i, 0, 1); |
---|
| 594 | } |
---|
| 595 | Tbl_TableFree(blifInfo->blifmvTable); |
---|
| 596 | blifInfo->blifmvTable = table; |
---|
| 597 | } |
---|
| 598 | } |
---|
| 599 | /* it is a pseudoinput, and has been singletonized wrt outputs */ |
---|
| 600 | if(Tbl_TableReadNumRows(blifInfo->blifmvTable) > 1){ |
---|
| 601 | name = ALLOC(char, 256); |
---|
| 602 | i = 0; |
---|
| 603 | sprintf(name, "[%d]", i); |
---|
| 604 | while(!(Hrc_NodeFindVariableByName(hnode, name) == NULL)){ |
---|
| 605 | i++; |
---|
| 606 | sprintf(name, "[%d]", i); |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | blifInfo->pseudoinputFlag = TRUE; |
---|
| 610 | var = Var_VariableAlloc(hnode, name); |
---|
| 611 | Tbl_TableAddColumn(blifInfo->blifmvTable, var, 0); |
---|
| 612 | (void)fprintf(blifInfo->BlifFp, ".inputs %s0\n", name); |
---|
| 613 | origVar = Tbl_TableReadIndexVar(origTable, 0, 1); |
---|
| 614 | IoMvPrint(blifInfo->EncFp, origVar); |
---|
| 615 | Tbl_TableWriteBlifMvToFile(origTable, 0, blifInfo->EncFp); |
---|
| 616 | Tbl_TableFree(origTable); |
---|
| 617 | numRows = Tbl_TableReadNumRows(blifInfo->blifmvTable); |
---|
| 618 | for(i = 0; i < numRows; i++){ |
---|
| 619 | if(i % 2 == 1){ |
---|
| 620 | entry = Tbl_EntryAlloc(Tbl_EntryNormal_c); |
---|
| 621 | Tbl_EntrySetValue(entry, 1, 1); |
---|
| 622 | Tbl_TableSetEntry(blifInfo->blifmvTable, entry, i, 0, 0); |
---|
| 623 | } |
---|
| 624 | else{ |
---|
| 625 | entry = Tbl_EntryAlloc(Tbl_EntryNormal_c); |
---|
| 626 | Tbl_EntrySetValue(entry, 0, 0); |
---|
| 627 | Tbl_TableSetEntry(blifInfo->blifmvTable, entry, i, 0, 0); |
---|
| 628 | } |
---|
| 629 | } |
---|
| 630 | FREE(name); |
---|
| 631 | } |
---|
| 632 | } |
---|
| 633 | |
---|
| 634 | Tbl_TableForEachInputVar(blifInfo->blifmvTable, colnum, var){ |
---|
| 635 | IoEncodeVariable(blifInfo, var, colnum, 0); |
---|
| 636 | } |
---|
| 637 | |
---|
| 638 | Tbl_TableForEachOutputVar(blifInfo->blifmvTable, colnum, var){ |
---|
| 639 | IoEncodeVariable(blifInfo, var, colnum, 1); |
---|
| 640 | } |
---|
| 641 | return 0; |
---|
| 642 | } |
---|
| 643 | |
---|
| 644 | |
---|
| 645 | /**Function******************************************************************** |
---|
| 646 | |
---|
| 647 | Synopsis [Encodes variables to make singleton output values in every row] |
---|
| 648 | |
---|
| 649 | Description [Returns modified table along with a modified array of tables for |
---|
| 650 | encoding the multivalued variables. If the original table |
---|
| 651 | has singleton output values then it is returned unmodified, |
---|
| 652 | with the unmodified variable encoding tables.] |
---|
| 653 | |
---|
| 654 | SideEffects [Potentially modifies the array of tables describing the encoding] |
---|
| 655 | |
---|
| 656 | SeeAlso [] |
---|
| 657 | |
---|
| 658 | ******************************************************************************/ |
---|
| 659 | static void |
---|
| 660 | _IoDeterminizeEncodeOutputPart( |
---|
| 661 | IoBlifInfo_t *blifInfo, |
---|
| 662 | st_table *blifInputsStTable |
---|
| 663 | ) |
---|
| 664 | { |
---|
| 665 | Tbl_Entry_t *entry; |
---|
| 666 | int numValues, i, j, numRows, numOutputs; |
---|
| 667 | IoVarEncEntry_t *varEnc; |
---|
| 668 | array_t *MvOutputArray; |
---|
| 669 | |
---|
| 670 | numRows = Tbl_TableReadNumRows(blifInfo->blifmvTable); |
---|
| 671 | numOutputs = Tbl_TableReadNumOutputs(blifInfo->blifmvTable); |
---|
| 672 | for(i = 0; i < numRows; i++){ |
---|
| 673 | MvOutputArray = array_alloc(int, 0); |
---|
| 674 | numValues = 1; |
---|
| 675 | for(j = 0; j < numOutputs; j++){ |
---|
| 676 | entry = Tbl_TableReadEntry(blifInfo->blifmvTable, i, j, 1); |
---|
| 677 | numValues *= Tbl_EntryReadNumValues(entry); |
---|
| 678 | array_insert_last(int, MvOutputArray, Tbl_EntryReadNumValues(entry)); |
---|
| 679 | } |
---|
| 680 | if(numValues > 1){ |
---|
| 681 | varEnc = IoFindSmallestCode(blifInfo); |
---|
| 682 | if(blifInfo->verbosity > 2){ |
---|
| 683 | (void)fprintf(stdout, "Singletonizing Outputs in Row %d\n", i); |
---|
| 684 | (void)fprintf(stdout, "Best Variable is %s\n", Var_VariableReadName(varEnc->variable)); |
---|
| 685 | } |
---|
| 686 | IoIncreaseCodeSize(varEnc, numValues, blifInfo->verbosity); |
---|
| 687 | IoChangeBlifmvTableEntries(blifInfo, i, numValues, varEnc, MvOutputArray); |
---|
| 688 | IoChangeEncTableEntries(blifInfo, blifInputsStTable, varEnc, numValues); |
---|
| 689 | i = -1; |
---|
| 690 | array_free(MvOutputArray); |
---|
| 691 | |
---|
| 692 | if(blifInfo->verbosity > 2){ |
---|
| 693 | (void)fprintf(stdout, "Blifmv Table After Output Singletonization\n"); |
---|
| 694 | Tbl_TableWriteBlifMvToFile(blifInfo->blifmvTable, 0, stdout); |
---|
| 695 | } |
---|
| 696 | } |
---|
| 697 | else{ |
---|
| 698 | array_free(MvOutputArray); |
---|
| 699 | } |
---|
| 700 | } |
---|
| 701 | } |
---|
| 702 | |
---|
| 703 | |
---|
| 704 | /**Function******************************************************************** |
---|
| 705 | |
---|
| 706 | Synopsis [Encodes variables to make table deterministic] |
---|
| 707 | |
---|
| 708 | Description [Returns modified table along with a modified array of tables for |
---|
| 709 | encoding the multivalued variables. If the original table |
---|
| 710 | is deterministic, then it is returned unmodified, |
---|
| 711 | with the unmodified variable encoding tables.] |
---|
| 712 | |
---|
| 713 | SideEffects [Potentially modifies the array of tables describing the encoding] |
---|
| 714 | |
---|
| 715 | SeeAlso [] |
---|
| 716 | |
---|
| 717 | ******************************************************************************/ |
---|
| 718 | static void |
---|
| 719 | _IoDeterminizeEncodeRows( |
---|
| 720 | IoBlifInfo_t *blifInfo, |
---|
| 721 | st_table *blifInputsStTable |
---|
| 722 | ) |
---|
| 723 | { |
---|
| 724 | int i, j, k, numRows, numOutputs, numInputs, mvValue; |
---|
| 725 | boolean rowsIntersect; |
---|
| 726 | IoVarEncEntry_t *varEnc; |
---|
| 727 | char *pseudoInputName, *realPseudoInputName; |
---|
| 728 | Var_Variable_t *outvar, *var, *origVar; |
---|
| 729 | Tbl_Entry_t *entry; |
---|
| 730 | |
---|
| 731 | |
---|
| 732 | numRows = Tbl_TableReadNumRows(blifInfo->binTable); |
---|
| 733 | for(i = 0; i < numRows; i++){ |
---|
| 734 | for(j = i + 1; j < numRows; j++){ |
---|
| 735 | if(blifInfo->verbosity > 2){ |
---|
| 736 | (void)fprintf(stdout, "Intersecting Rows %d and %d \n", i, j); |
---|
| 737 | } |
---|
| 738 | rowsIntersect = Tbl_RowInputIntersect(blifInfo->binTable, i, j); |
---|
| 739 | if(rowsIntersect == 1){ |
---|
| 740 | if(blifInfo->verbosity > 2){ |
---|
| 741 | (void)fprintf(stdout, "Input Intersection non-null\n"); |
---|
| 742 | } |
---|
| 743 | if(!Tbl_RowOutputIntersect(blifInfo->binTable, i, j)){ |
---|
| 744 | varEnc = IoFindSmallestCode(blifInfo); |
---|
| 745 | if(blifInfo->verbosity > 2){ |
---|
| 746 | (void)fprintf(stdout, "Output Intersection null\n"); |
---|
| 747 | (void)fprintf(stdout, "Best Variable is %s\n", Var_VariableReadName(varEnc->variable)); |
---|
| 748 | |
---|
| 749 | } |
---|
| 750 | IoIncreaseCodeSize(varEnc, 2, blifInfo->verbosity); |
---|
| 751 | IoChangeBlifmvTableRows(blifInfo, varEnc, i, j); |
---|
| 752 | IoChangeEncTableEntries(blifInfo, blifInputsStTable, varEnc, 2); |
---|
| 753 | |
---|
| 754 | if(blifInfo->verbosity > 2){ |
---|
| 755 | (void)fprintf(stdout, "Bin Table After Row Overlap elimination \n"); |
---|
| 756 | Tbl_TableWriteBlifMvToFile(blifInfo->binTable, 0, stdout); |
---|
| 757 | } |
---|
| 758 | } |
---|
| 759 | } |
---|
| 760 | } |
---|
| 761 | } |
---|
| 762 | if(blifInfo->pseudoinputFlag == TRUE){ |
---|
| 763 | /* pseudoinput cant have .def construct */ |
---|
| 764 | outvar = Tbl_TableReadIndexVar(blifInfo->binTable, 0, 1); |
---|
| 765 | pseudoInputName = Var_VariableReadName(outvar); |
---|
| 766 | realPseudoInputName = ALLOC(char, strlen(pseudoInputName) + 2); |
---|
| 767 | sprintf(realPseudoInputName, "%s", pseudoInputName); |
---|
| 768 | realPseudoInputName[strlen(pseudoInputName) - 1] = '\0'; |
---|
| 769 | numOutputs = Tbl_TableReadNumOutputs(blifInfo->binTable); |
---|
| 770 | numInputs = Tbl_TableReadNumInputs(blifInfo->binTable); |
---|
| 771 | for(i = 0; i < numInputs; i++){ |
---|
| 772 | (void)fprintf(blifInfo->EncFp, ".table %s ->", realPseudoInputName); |
---|
| 773 | var = Tbl_TableReadIndexVar(blifInfo->binTable, i, 0); |
---|
| 774 | (void)fprintf(blifInfo->EncFp, "%s\n", Var_VariableReadName(var)); |
---|
| 775 | (void)fprintf(blifInfo->EncFp, ".default 0\n"); |
---|
| 776 | for(j = 0; j < numRows; j++){ |
---|
| 777 | mvValue = 0; |
---|
| 778 | for(k = 0; k < numOutputs; k++){ |
---|
| 779 | entry = Tbl_TableReadEntry(blifInfo->binTable, j, k, 1); |
---|
| 780 | if(Tbl_EntryCheckRange(entry, 1, 1)){ |
---|
| 781 | mvValue += (int) pow((double)2, (double) k); |
---|
| 782 | } |
---|
| 783 | } |
---|
| 784 | origVar = Tbl_TableReadIndexVar(blifInfo->blifmvTable, 0, 1); |
---|
| 785 | if(Var_VariableTestIsSymbolic(origVar)){ |
---|
| 786 | (void)fprintf(blifInfo->EncFp, "%s ", |
---|
| 787 | Var_VariableReadSymbolicValueFromIndex(origVar, mvValue)); |
---|
| 788 | } |
---|
| 789 | else{ |
---|
| 790 | (void)fprintf(blifInfo->EncFp, "%d ", mvValue); |
---|
| 791 | } |
---|
| 792 | |
---|
| 793 | entry = Tbl_TableReadEntry(blifInfo->binTable, j, i, 0); |
---|
| 794 | if(Tbl_EntryCheckRange(entry, 1, 1)){ |
---|
| 795 | (void)fprintf(blifInfo->EncFp, "%d\n", 1); |
---|
| 796 | } |
---|
| 797 | else{ |
---|
| 798 | if(Tbl_EntryCheckRange(entry, 0, 0)){ |
---|
| 799 | (void)fprintf(blifInfo->EncFp, "%d\n", 0); |
---|
| 800 | } |
---|
| 801 | else{ |
---|
| 802 | (void)fprintf(blifInfo->EncFp, "-\n"); |
---|
| 803 | } |
---|
| 804 | } |
---|
| 805 | } |
---|
| 806 | } |
---|
| 807 | FREE(realPseudoInputName); |
---|
| 808 | } |
---|
| 809 | } |
---|
| 810 | |
---|
| 811 | |
---|
| 812 | /**Function******************************************************************** |
---|
| 813 | |
---|
| 814 | Synopsis [Creates Dont-Care Tables for Variable Encodings] |
---|
| 815 | |
---|
| 816 | Description [For each table in the blifInfo->inputEncTblArray, this |
---|
| 817 | function creates dont-care tables] |
---|
| 818 | |
---|
| 819 | SideEffects [] |
---|
| 820 | |
---|
| 821 | SeeAlso [] |
---|
| 822 | |
---|
| 823 | ******************************************************************************/ |
---|
| 824 | static void |
---|
| 825 | _IoMakeDcTables( |
---|
| 826 | IoBlifInfo_t *blifInfo |
---|
| 827 | ) |
---|
| 828 | { |
---|
| 829 | } |
---|
| 830 | |
---|
| 831 | |
---|
| 832 | |
---|
| 833 | /**Function******************************************************************** |
---|
| 834 | |
---|
| 835 | Synopsis [Writes out blifmvTable to binTable in encoded form] |
---|
| 836 | |
---|
| 837 | Description [] |
---|
| 838 | |
---|
| 839 | SideEffects [] |
---|
| 840 | |
---|
| 841 | SeeAlso [] |
---|
| 842 | |
---|
| 843 | ******************************************************************************/ |
---|
| 844 | static void |
---|
| 845 | _IoMakeBinTable( |
---|
| 846 | IoBlifInfo_t *blifInfo |
---|
| 847 | ) |
---|
| 848 | { |
---|
| 849 | int i, j, k, m, n, colnum, numRowsAfterExpansion, numEncBits; |
---|
| 850 | int rootCol, rootRow, entryRepetitionCount, numCycles, value, numBits, currRow; |
---|
| 851 | int numOutputs, numRows, numInputs, defValue, varRange; |
---|
| 852 | Tbl_Entry_t *entry, *workingEntry; |
---|
| 853 | array_t *binRangesArray, *mvEntryBinRanges; |
---|
| 854 | IoVarEncEntry_t *varEnc; |
---|
| 855 | char *varname, *dupName; |
---|
| 856 | Var_Variable_t *var; |
---|
| 857 | lsGen gen, gen2; |
---|
| 858 | Tbl_Range_t *range, *range2; |
---|
| 859 | IoBinRangeEntry_t *binRangeEntry; |
---|
| 860 | |
---|
| 861 | |
---|
| 862 | /* initialize the binTable, defining input vars etc */ |
---|
| 863 | |
---|
| 864 | numRows = Tbl_TableReadNumRows(blifInfo->blifmvTable); |
---|
| 865 | numInputs = Tbl_TableReadNumInputs(blifInfo->blifmvTable); |
---|
| 866 | numOutputs = Tbl_TableReadNumOutputs(blifInfo->blifmvTable); |
---|
| 867 | for(j = 0; j < Tbl_TableReadNumInputs(blifInfo->blifmvTable); j++){ |
---|
| 868 | varEnc = array_fetch(IoVarEncEntry_t *, blifInfo->inputEncTblArray, j); |
---|
| 869 | numEncBits = varEnc->numEncBits; |
---|
| 870 | for(k = 0; k < numEncBits ; k++){ |
---|
| 871 | varname = Var_VariableReadName(varEnc->variable); |
---|
| 872 | dupName = ALLOC(char, strlen(varname) + IoNumDigits(numEncBits) + 2); |
---|
| 873 | sprintf(dupName, "%s%d", varname, k); |
---|
| 874 | var = Var_VariableAlloc(NIL(Hrc_Node_t), dupName); |
---|
| 875 | FREE(dupName); |
---|
| 876 | array_insert_last(Var_Variable_t *, blifInfo->varArray, var); |
---|
| 877 | colnum = Tbl_TableAddColumn(blifInfo->binTable, var, 0); |
---|
| 878 | } |
---|
| 879 | } |
---|
| 880 | |
---|
| 881 | for(j = 0; j < Tbl_TableReadNumOutputs(blifInfo->blifmvTable); j++){ |
---|
| 882 | varEnc = array_fetch(IoVarEncEntry_t *, blifInfo->outputEncTblArray, j); |
---|
| 883 | numEncBits = varEnc->numEncBits; |
---|
| 884 | for(k = 0; k < numEncBits ; k++){ |
---|
| 885 | varname = Var_VariableReadName(varEnc->variable); |
---|
| 886 | dupName = ALLOC(char, strlen(varname) + IoNumDigits(numEncBits) + 2); |
---|
| 887 | sprintf(dupName, "%s%d", varname, k); |
---|
| 888 | var = Var_VariableAlloc(NIL(Hrc_Node_t), dupName); |
---|
| 889 | FREE(dupName); |
---|
| 890 | array_insert_last(Var_Variable_t *, blifInfo->varArray, var); |
---|
| 891 | colnum = Tbl_TableAddColumn(blifInfo->binTable, var, 1); |
---|
| 892 | } |
---|
| 893 | } |
---|
| 894 | |
---|
| 895 | |
---|
| 896 | /* |
---|
| 897 | fprintf(stdout, "\n"); |
---|
| 898 | */ |
---|
| 899 | for(i = 0; i < numRows; i++){ |
---|
| 900 | |
---|
| 901 | /* make temp array of number of values for each input var */ |
---|
| 902 | numRowsAfterExpansion = 1; |
---|
| 903 | binRangesArray = array_alloc(array_t *, 0); |
---|
| 904 | |
---|
| 905 | for(colnum = 0; colnum < numInputs; colnum++){ |
---|
| 906 | entry = Tbl_TableReadEntry(blifInfo->blifmvTable, i, colnum, 0); |
---|
| 907 | workingEntry = Tbl_EntryDup(entry); |
---|
| 908 | mvEntryBinRanges = IoMakeBinaryRangesArray(workingEntry, colnum, blifInfo); |
---|
| 909 | numRowsAfterExpansion *= array_n(mvEntryBinRanges); |
---|
| 910 | array_insert_last(array_t *, binRangesArray, mvEntryBinRanges); |
---|
| 911 | } |
---|
| 912 | |
---|
| 913 | /* |
---|
| 914 | for(j = 0; j < array_n(binRangesArray); j++){ |
---|
| 915 | mvEntryBinRanges = array_fetch(array_t *, binRangesArray, j); |
---|
| 916 | for(k = 0; k < array_n(mvEntryBinRanges); k++){ |
---|
| 917 | binRangeEntry = array_fetch(IoBinRangeEntry_t *, mvEntryBinRanges, k); |
---|
| 918 | fprintf(stdout, "start %d\t runlen%d\t skip %d\n", binRangeEntry->startValue, binRangeEntry->runLength, binRangeEntry->skipLength); |
---|
| 919 | } |
---|
| 920 | (void)fprintf(stdout, "\n"); |
---|
| 921 | } |
---|
| 922 | fprintf(stdout, "numRowsAfterExpansion %d\n", numRowsAfterExpansion); |
---|
| 923 | |
---|
| 924 | */ |
---|
| 925 | /* add numRowsAfterExpansion rows to binTable */ |
---|
| 926 | |
---|
| 927 | rootCol = 0; |
---|
| 928 | rootRow = Tbl_TableReadNumRows(blifInfo->binTable); |
---|
| 929 | for(j = 0; j < numRowsAfterExpansion; j++){ |
---|
| 930 | Tbl_TableAddRow(blifInfo->binTable); |
---|
| 931 | } |
---|
| 932 | |
---|
| 933 | /* write out binary encoded variable values for the determinized, encoded blifmvTable |
---|
| 934 | (input parts) */ |
---|
| 935 | |
---|
| 936 | entryRepetitionCount = numRowsAfterExpansion; |
---|
| 937 | m = 0; |
---|
| 938 | numCycles = 1; |
---|
| 939 | |
---|
| 940 | for(colnum = 0; colnum < numInputs; colnum++){ |
---|
| 941 | mvEntryBinRanges = array_fetch(array_t *, binRangesArray, colnum); |
---|
| 942 | currRow = rootRow; |
---|
| 943 | rootCol += IoNumBinVars(colnum, blifInfo->inputEncTblArray); |
---|
| 944 | entryRepetitionCount = entryRepetitionCount / array_n(array_fetch(array_t *, binRangesArray, m)); |
---|
| 945 | numCycles *= IoNumValuesFromBinRangesArray(colnum, binRangesArray); |
---|
| 946 | numBits = IoNumBinVars(colnum + 1, blifInfo->inputEncTblArray); |
---|
| 947 | for(k=0; k<numCycles; k++){ |
---|
| 948 | for(n = 0; n < array_n(mvEntryBinRanges); n++){ |
---|
| 949 | binRangeEntry = array_fetch(IoBinRangeEntry_t *, mvEntryBinRanges, n); |
---|
| 950 | IoWriteExpandedValueToBinTable(blifInfo->binTable, currRow, rootCol, binRangeEntry, entryRepetitionCount, numBits, 0); |
---|
| 951 | currRow = currRow + entryRepetitionCount; |
---|
| 952 | } |
---|
| 953 | } |
---|
| 954 | m++; |
---|
| 955 | } |
---|
| 956 | |
---|
| 957 | /* write out binary encoded variable values for the determinized, encoded blifmvTable |
---|
| 958 | (output parts) */ |
---|
| 959 | |
---|
| 960 | rootCol = 0; |
---|
| 961 | |
---|
| 962 | for(colnum = 0; colnum < numOutputs; colnum++){ |
---|
| 963 | entry = Tbl_TableReadEntry(blifInfo->blifmvTable, i, colnum, 1); |
---|
| 964 | rootCol += IoNumBinVars(colnum, blifInfo->outputEncTblArray); |
---|
| 965 | numBits = IoNumBinVars(colnum + 1, blifInfo->outputEncTblArray); |
---|
| 966 | Tbl_EntryForEachValue(entry, value, gen, range){ |
---|
| 967 | binRangeEntry = ALLOC(IoBinRangeEntry_t, 1); |
---|
| 968 | binRangeEntry->startValue = value; |
---|
| 969 | binRangeEntry->runLength = 1; |
---|
| 970 | binRangeEntry->skipLength = 1; |
---|
| 971 | IoWriteExpandedValueToBinTable(blifInfo->binTable, rootRow, rootCol, binRangeEntry, numRowsAfterExpansion, numBits, 1); |
---|
| 972 | FREE(binRangeEntry); |
---|
| 973 | } |
---|
| 974 | } |
---|
| 975 | for(j = 0; j < array_n(binRangesArray); j++){ |
---|
| 976 | mvEntryBinRanges = array_fetch(array_t *, binRangesArray, j); |
---|
| 977 | for(n = 0; n < array_n(mvEntryBinRanges); n++){ |
---|
| 978 | binRangeEntry = array_fetch(IoBinRangeEntry_t *, mvEntryBinRanges, n); |
---|
| 979 | FREE(binRangeEntry); |
---|
| 980 | } |
---|
| 981 | array_free(mvEntryBinRanges); |
---|
| 982 | } |
---|
| 983 | array_free(binRangesArray); |
---|
| 984 | } |
---|
| 985 | |
---|
| 986 | rootCol = 0; |
---|
| 987 | Tbl_TableForEachOutputVar(blifInfo->blifmvTable, colnum, var){ |
---|
| 988 | entry = Tbl_TableDefaultReadEntry(blifInfo->blifmvTable, colnum); |
---|
| 989 | if(entry != NIL(Tbl_Entry_t)){ |
---|
| 990 | varRange = Var_VariableReadNumValues(var); |
---|
| 991 | numEncBits = IoNumEncBits(varRange); |
---|
| 992 | defValue = -1; |
---|
| 993 | Tbl_EntryForEachValue(entry, value, gen2, range2){ |
---|
| 994 | defValue = value; |
---|
| 995 | assert(defValue != -1); |
---|
| 996 | } |
---|
| 997 | for(j = numEncBits - 1; j >= 0; j--){ |
---|
| 998 | if(((int)(defValue / pow((double) 2, (double) j))) == 1){ |
---|
| 999 | IoInvertBinTableOutput(blifInfo, rootCol + j); |
---|
| 1000 | defValue = defValue - (int)pow((double)2,(double)j); |
---|
| 1001 | } |
---|
| 1002 | } |
---|
| 1003 | rootCol += numEncBits; |
---|
| 1004 | } |
---|
| 1005 | } |
---|
| 1006 | } |
---|
| 1007 | |
---|
| 1008 | |
---|
| 1009 | /**Function******************************************************************** |
---|
| 1010 | |
---|
| 1011 | Synopsis [Checks that all hnodes rooted at the give hnode are boolean and |
---|
| 1012 | deterministic] |
---|
| 1013 | |
---|
| 1014 | Description [] |
---|
| 1015 | |
---|
| 1016 | SideEffects [] |
---|
| 1017 | |
---|
| 1018 | SeeAlso [] |
---|
| 1019 | |
---|
| 1020 | ******************************************************************************/ |
---|
| 1021 | static int |
---|
| 1022 | _IoCheckHnodeTreeIsBooleanAndDeterministic( |
---|
| 1023 | mdd_manager **mddMgr, |
---|
| 1024 | Hrc_Node_t *hnode, |
---|
| 1025 | st_table *modelTable, |
---|
| 1026 | boolean *pSymVarsPresent, |
---|
| 1027 | int verbosity |
---|
| 1028 | ) |
---|
| 1029 | { |
---|
| 1030 | char *modelName, *childName; |
---|
| 1031 | Hrc_Model_t *model; |
---|
| 1032 | st_generator *stGen; |
---|
| 1033 | Hrc_Manager_t *manager; |
---|
| 1034 | Hrc_Node_t *childNode; |
---|
| 1035 | |
---|
| 1036 | manager = Hrc_NodeReadManager(hnode); |
---|
| 1037 | /* enter current model in modelTable */ |
---|
| 1038 | modelName = Hrc_NodeReadModelName(hnode); |
---|
| 1039 | model = Hrc_ManagerFindModelByName(manager, modelName); |
---|
| 1040 | if(st_is_member(modelTable, (char *) model)){ |
---|
| 1041 | return 0; |
---|
| 1042 | } |
---|
| 1043 | else{ |
---|
| 1044 | st_insert(modelTable, (char *)model, (char *) (long) (-1)); |
---|
| 1045 | } |
---|
| 1046 | |
---|
| 1047 | if(_IoCheckHnodeIsBooleanAndDeterministic(mddMgr, hnode, pSymVarsPresent)){ |
---|
| 1048 | if(verbosity > 1){ |
---|
| 1049 | fprintf(vis_stderr, "Model %s is NOT boolean and deterministic\n", modelName); |
---|
| 1050 | } |
---|
| 1051 | return 1; |
---|
| 1052 | } |
---|
| 1053 | if(verbosity > 1){ |
---|
| 1054 | fprintf(vis_stderr, "Model %s is boolean and deterministic\n", modelName); |
---|
| 1055 | } |
---|
| 1056 | Hrc_NodeForEachChild(hnode, stGen, childName, childNode){ |
---|
| 1057 | if(_IoCheckHnodeTreeIsBooleanAndDeterministic(mddMgr, childNode, modelTable, pSymVarsPresent, verbosity)){ |
---|
| 1058 | st_free_gen(stGen); |
---|
| 1059 | return 1; |
---|
| 1060 | } |
---|
| 1061 | } |
---|
| 1062 | return 0; |
---|
| 1063 | } |
---|
| 1064 | |
---|
| 1065 | |
---|
| 1066 | /**Function******************************************************************** |
---|
| 1067 | |
---|
| 1068 | Synopsis [Checks that the given hnode is boolean and deterministic] |
---|
| 1069 | |
---|
| 1070 | Description [] |
---|
| 1071 | |
---|
| 1072 | SideEffects [] |
---|
| 1073 | |
---|
| 1074 | SeeAlso [] |
---|
| 1075 | |
---|
| 1076 | ******************************************************************************/ |
---|
| 1077 | static int |
---|
| 1078 | _IoCheckHnodeIsBooleanAndDeterministic( |
---|
| 1079 | mdd_manager **mddMgr, |
---|
| 1080 | Hrc_Node_t *hnode, |
---|
| 1081 | boolean *pSymVarsPresent |
---|
| 1082 | ) |
---|
| 1083 | { |
---|
| 1084 | |
---|
| 1085 | /* check that variables of all models are boolean */ |
---|
| 1086 | if(_IoCheckHnodeVarsAreBoolean(hnode, pSymVarsPresent)){ |
---|
| 1087 | return 1; |
---|
| 1088 | } |
---|
| 1089 | |
---|
| 1090 | /* check that latch resets of all models are either 0/1/2 */ |
---|
| 1091 | if(_IoCheckHnodeLatchResetIsConstant(hnode)){ |
---|
| 1092 | return 1; |
---|
| 1093 | } |
---|
| 1094 | |
---|
| 1095 | /* check that tables of all models are deterministic */ |
---|
| 1096 | if(_IoCheckHnodeTablesAreDeterministic(mddMgr, hnode)){ |
---|
| 1097 | return 1; |
---|
| 1098 | } |
---|
| 1099 | |
---|
| 1100 | return 0; |
---|
| 1101 | } |
---|
| 1102 | |
---|
| 1103 | /**Function******************************************************************** |
---|
| 1104 | |
---|
| 1105 | Synopsis [Checks that the variables of a model are boolean] |
---|
| 1106 | |
---|
| 1107 | Description [] |
---|
| 1108 | |
---|
| 1109 | SideEffects [] |
---|
| 1110 | |
---|
| 1111 | SeeAlso [] |
---|
| 1112 | |
---|
| 1113 | ******************************************************************************/ |
---|
| 1114 | static int |
---|
| 1115 | _IoCheckHnodeVarsAreBoolean( |
---|
| 1116 | Hrc_Node_t *hnode, |
---|
| 1117 | boolean *pSymVarsPresent |
---|
| 1118 | ) |
---|
| 1119 | { |
---|
| 1120 | st_generator *stGen; |
---|
| 1121 | char *varName; |
---|
| 1122 | Var_Variable_t *var; |
---|
| 1123 | |
---|
| 1124 | Hrc_NodeForEachVariable(hnode, stGen, varName, var){ |
---|
| 1125 | if(Var_VariableReadNumValues(var) > 2){ |
---|
| 1126 | fprintf(vis_stderr, "Variable %s is not boolean - quitting.\n", varName); |
---|
| 1127 | st_free_gen(stGen); |
---|
| 1128 | return 1; |
---|
| 1129 | } |
---|
| 1130 | if(Var_VariableTestIsSymbolic(var)){ |
---|
| 1131 | *pSymVarsPresent = TRUE; |
---|
| 1132 | } |
---|
| 1133 | } |
---|
| 1134 | return 0; |
---|
| 1135 | } |
---|
| 1136 | |
---|
| 1137 | |
---|
| 1138 | /**Function******************************************************************** |
---|
| 1139 | |
---|
| 1140 | Synopsis [Checks that the latches of a model have constant reset tables] |
---|
| 1141 | |
---|
| 1142 | Description [] |
---|
| 1143 | |
---|
| 1144 | SideEffects [] |
---|
| 1145 | |
---|
| 1146 | SeeAlso [] |
---|
| 1147 | |
---|
| 1148 | ******************************************************************************/ |
---|
| 1149 | static int |
---|
| 1150 | _IoCheckHnodeLatchResetIsConstant( |
---|
| 1151 | Hrc_Node_t *hnode |
---|
| 1152 | ) |
---|
| 1153 | { |
---|
| 1154 | st_generator *stGen; |
---|
| 1155 | char *latchName; |
---|
| 1156 | Hrc_Latch_t *latch; |
---|
| 1157 | boolean test; |
---|
| 1158 | Tbl_Table_t *table, *resetTable; |
---|
| 1159 | Tbl_Entry_t *entry; |
---|
| 1160 | Var_Variable_t *var, *parentVar; |
---|
| 1161 | int i, j; |
---|
| 1162 | |
---|
| 1163 | Hrc_NodeForEachLatch(hnode, stGen, latchName, latch){ |
---|
| 1164 | resetTable = Hrc_LatchReadResetTable(latch); |
---|
| 1165 | test = Tbl_TableTestIsConstant(resetTable, 0); |
---|
| 1166 | /* |
---|
| 1167 | Tbl_TableTestIsConstant gives 0 result for reset tables of |
---|
| 1168 | the type .reset a ->b; - =a; where a is a constant defined |
---|
| 1169 | in another table. So check for this case as well. |
---|
| 1170 | */ |
---|
| 1171 | if(test == FALSE){ |
---|
| 1172 | if(Tbl_TableReadNumRows(resetTable) == 1){ |
---|
| 1173 | entry = Tbl_TableReadEntry(resetTable, 0, 0, 1); |
---|
| 1174 | if(Tbl_EntryReadType(entry) == Tbl_EntryEqual_c){ |
---|
| 1175 | parentVar = Tbl_EntryReadVar(resetTable, entry); |
---|
| 1176 | Hrc_NodeForEachNameTable(hnode, i, table){ |
---|
| 1177 | Tbl_TableForEachOutputVar(table, j, var){ |
---|
| 1178 | if(var == parentVar){ |
---|
| 1179 | test = Tbl_TableTestIsConstant(table, j); |
---|
| 1180 | } |
---|
| 1181 | } |
---|
| 1182 | } |
---|
| 1183 | } |
---|
| 1184 | } |
---|
| 1185 | } |
---|
| 1186 | if (test == FALSE){ |
---|
| 1187 | fprintf(vis_stderr, "Latch %s has a non-constant reset value - quitting.\n", latchName); |
---|
| 1188 | st_free_gen(stGen); |
---|
| 1189 | return 1; |
---|
| 1190 | } |
---|
| 1191 | } |
---|
| 1192 | return 0; |
---|
| 1193 | } |
---|
| 1194 | |
---|
| 1195 | /**Function******************************************************************** |
---|
| 1196 | |
---|
| 1197 | Synopsis [Checks that all tables in a model are deterministic] |
---|
| 1198 | |
---|
| 1199 | Description [] |
---|
| 1200 | |
---|
| 1201 | SideEffects [] |
---|
| 1202 | |
---|
| 1203 | SeeAlso [] |
---|
| 1204 | |
---|
| 1205 | ******************************************************************************/ |
---|
| 1206 | static int |
---|
| 1207 | _IoCheckHnodeTablesAreDeterministic( |
---|
| 1208 | mdd_manager **mddMgr, |
---|
| 1209 | Hrc_Node_t *hnode |
---|
| 1210 | ) |
---|
| 1211 | { |
---|
| 1212 | int i, j, k, index, colNum, offset, numInputs; |
---|
| 1213 | Tbl_Table_t *table; |
---|
| 1214 | Var_Variable_t *inputVar, *outputVar, *var; |
---|
| 1215 | Mvf_Function_t *faninMvf, *outMvf; |
---|
| 1216 | array_t *faninMvfArray; |
---|
| 1217 | array_t *mvarValues; |
---|
| 1218 | Tbl_Entry_t *entry; |
---|
| 1219 | |
---|
| 1220 | |
---|
| 1221 | /* note that reset tables are not handled here */ |
---|
| 1222 | Hrc_NodeForEachNameTable(hnode, i, table){ |
---|
| 1223 | Tbl_TableForEachOutputVar(table, index, outputVar){ |
---|
| 1224 | |
---|
| 1225 | faninMvfArray = array_alloc(Mvf_Function_t *, 0); |
---|
| 1226 | mvarValues = array_alloc(int, 0); |
---|
| 1227 | |
---|
| 1228 | /* Create MDD variables for the table inputs. */ |
---|
| 1229 | Tbl_TableForEachInputVar(table, colNum, inputVar) { |
---|
| 1230 | array_insert_last(int, mvarValues, Var_VariableReadNumValues(inputVar)); |
---|
| 1231 | } |
---|
| 1232 | offset = array_n(mdd_ret_mvar_list(*mddMgr)); /* number of existing mvars */ |
---|
| 1233 | mdd_create_variables(*mddMgr, mvarValues, NIL(array_t), NIL(array_t)); |
---|
| 1234 | array_free(mvarValues); |
---|
| 1235 | |
---|
| 1236 | /* |
---|
| 1237 | * Construct an MVF for each table input. The MVF for column j is the MVF |
---|
| 1238 | * for MDD variable j. |
---|
| 1239 | */ |
---|
| 1240 | |
---|
| 1241 | numInputs = Tbl_TableReadNumInputs(table ); |
---|
| 1242 | for (j = 0; j < numInputs; j++) { |
---|
| 1243 | faninMvf = Mvf_FunctionCreateFromVariable(*mddMgr, (j + offset)); |
---|
| 1244 | array_insert_last(Mvf_Function_t *, faninMvfArray, faninMvf); |
---|
| 1245 | } |
---|
| 1246 | |
---|
| 1247 | /* Compute the MVF of the output indexed by index. */ |
---|
| 1248 | outMvf = Tbl_TableBuildMvfFromFanins(table, index, faninMvfArray, *mddMgr); |
---|
| 1249 | Mvf_FunctionArrayFree(faninMvfArray); |
---|
| 1250 | |
---|
| 1251 | /* |
---|
| 1252 | * If the function is a non-deterministic constant, or it has some |
---|
| 1253 | * inputs, and is non-deterministic, then fail |
---|
| 1254 | */ |
---|
| 1255 | if((numInputs > 0) && !Mvf_FunctionTestIsDeterministic(outMvf)){ |
---|
| 1256 | (void) fprintf(vis_stderr, "Table %s is non-deterministic - quitting\n", Var_VariableReadName(outputVar)); |
---|
| 1257 | Mvf_FunctionFree(outMvf); |
---|
| 1258 | return 1; |
---|
| 1259 | } |
---|
| 1260 | if(Mvf_FunctionTestIsNonDeterministicConstant(outMvf)){ |
---|
| 1261 | (void) fprintf(vis_stderr, "Table %s is a non-deterministic constant - quitting\n", Var_VariableReadName(outputVar)); |
---|
| 1262 | Mvf_FunctionFree(outMvf); |
---|
| 1263 | return 1; |
---|
| 1264 | } |
---|
| 1265 | if (!Mvf_FunctionTestIsCompletelySpecified(outMvf)) { |
---|
| 1266 | (void) fprintf(vis_stderr, "Table %s is not completely specified - quitting\n", Var_VariableReadName(outputVar)); |
---|
| 1267 | Mvf_FunctionFree(outMvf); |
---|
| 1268 | return 1; |
---|
| 1269 | } |
---|
| 1270 | Mvf_FunctionFree(outMvf); |
---|
| 1271 | _MddManagerResetIfNecessary(mddMgr); |
---|
| 1272 | |
---|
| 1273 | } |
---|
| 1274 | } |
---|
| 1275 | |
---|
| 1276 | Hrc_NodeForEachNameTable(hnode, i, table){ |
---|
| 1277 | for(j = 0; j < Tbl_TableReadNumOutputs(table); j++){ |
---|
| 1278 | entry = Tbl_TableDefaultReadEntry(table, j); |
---|
| 1279 | if(entry != NIL(Tbl_Entry_t)){ |
---|
| 1280 | if(Tbl_EntryReadType(entry) == Tbl_EntryNormal_c){ |
---|
| 1281 | if(Tbl_EntryReadNumValues(entry) > 1){ |
---|
| 1282 | outputVar = Tbl_TableReadIndexVar(table, j, 1); |
---|
| 1283 | (void)fprintf(stdout, "The table with %s as an output has non-singleton default values - quitting\n", Var_VariableReadName(outputVar)); |
---|
| 1284 | return 1; |
---|
| 1285 | } |
---|
| 1286 | } |
---|
| 1287 | else{ |
---|
| 1288 | var = Tbl_EntryReadVar(table, entry); |
---|
| 1289 | k = Tbl_TableReadVarIndex(table, var, 1); |
---|
| 1290 | if(k<0){ |
---|
| 1291 | outputVar = Tbl_TableReadIndexVar(table, j, 1); |
---|
| 1292 | (void)fprintf(stdout, "Output %s has a default value that refers to an input variable - quitting\n", Var_VariableReadName(outputVar)); |
---|
| 1293 | return 1; |
---|
| 1294 | } |
---|
| 1295 | } |
---|
| 1296 | } |
---|
| 1297 | } |
---|
| 1298 | } |
---|
| 1299 | return 0; |
---|
| 1300 | } |
---|
| 1301 | |
---|
| 1302 | |
---|
| 1303 | /**Function******************************************************************** |
---|
| 1304 | |
---|
| 1305 | Synopsis [Potentially quits mddMgr and starts a new one.] |
---|
| 1306 | |
---|
| 1307 | Description [Quits mddMgr if the number of binary variables exceeds |
---|
| 1308 | MAX_NUMBER_BDD_VARS, and starts a new manager with no variables. |
---|
| 1309 | Initializing an empty MDD manager is costly in some BDD packages, so we want |
---|
| 1310 | to avoid doing it often (say, once per table). On the other hand, we don't |
---|
| 1311 | want the manager to have too many variables, because then reordering becomes |
---|
| 1312 | expensive.] |
---|
| 1313 | |
---|
| 1314 | SideEffects [] |
---|
| 1315 | |
---|
| 1316 | ******************************************************************************/ |
---|
| 1317 | static void |
---|
| 1318 | _MddManagerResetIfNecessary( |
---|
| 1319 | mdd_manager **mddMgr) |
---|
| 1320 | { |
---|
| 1321 | if (bdd_num_vars(*mddMgr) > MAX_NUMBER_BDD_VARS) { |
---|
| 1322 | mdd_quit(*mddMgr); |
---|
| 1323 | *mddMgr = mdd_init_empty(); |
---|
| 1324 | } |
---|
| 1325 | } |
---|
| 1326 | |
---|
| 1327 | |
---|
| 1328 | |
---|
| 1329 | /**Function******************************************************************** |
---|
| 1330 | |
---|
| 1331 | Synopsis [Write out a Hnode and recurse on its children] |
---|
| 1332 | |
---|
| 1333 | Description [Call the function to write out the given hnode in blif, and |
---|
| 1334 | recursively call the same function on its children.] |
---|
| 1335 | |
---|
| 1336 | SideEffects [] |
---|
| 1337 | |
---|
| 1338 | ******************************************************************************/ |
---|
| 1339 | static void |
---|
| 1340 | _IoHnodeWriteBlifRecursively( |
---|
| 1341 | Io_Encoding_Type_t encodingType, |
---|
| 1342 | Hrc_Node_t *hnode, |
---|
| 1343 | st_table *modelTable, |
---|
| 1344 | FILE *fp, |
---|
| 1345 | FILE *encFp, |
---|
| 1346 | int verbosity |
---|
| 1347 | ) |
---|
| 1348 | { |
---|
| 1349 | char *modelName, *childName; |
---|
| 1350 | Hrc_Model_t *model; |
---|
| 1351 | Hrc_Manager_t *manager; |
---|
| 1352 | st_generator *stGen; |
---|
| 1353 | Hrc_Node_t *childNode; |
---|
| 1354 | |
---|
| 1355 | manager = Hrc_NodeReadManager(hnode); |
---|
| 1356 | /* enter current model in modelTable */ |
---|
| 1357 | modelName = Hrc_NodeReadModelName(hnode); |
---|
| 1358 | model = Hrc_ManagerFindModelByName(manager, modelName); |
---|
| 1359 | if(st_is_member(modelTable, (char *) model)){ |
---|
| 1360 | return; |
---|
| 1361 | } |
---|
| 1362 | else{ |
---|
| 1363 | st_insert(modelTable, (char *)model, (char *) (long) (-1)); |
---|
| 1364 | } |
---|
| 1365 | |
---|
| 1366 | _IoHnodeWriteBlifRecursivelyStep(encodingType, hnode, fp, encFp, verbosity); |
---|
| 1367 | Hrc_NodeForEachChild(hnode, stGen, childName, childNode){ |
---|
| 1368 | _IoHnodeWriteBlifRecursively(encodingType, childNode, modelTable, fp, encFp, verbosity); |
---|
| 1369 | } |
---|
| 1370 | return; |
---|
| 1371 | } |
---|
| 1372 | |
---|
| 1373 | |
---|
| 1374 | /**Function*********************************************************** |
---|
| 1375 | |
---|
| 1376 | |
---|
| 1377 | Synopsis [ Writes out an hnode to blif] |
---|
| 1378 | |
---|
| 1379 | Description [ Writes out IO declarations, subckt declarations and tables to |
---|
| 1380 | the blif file specified.] |
---|
| 1381 | |
---|
| 1382 | SideEffects [ ] |
---|
| 1383 | |
---|
| 1384 | SeeAlso [ ] |
---|
| 1385 | **********************************************************************/ |
---|
| 1386 | static int |
---|
| 1387 | _IoHnodeWriteBlifRecursivelyStep( |
---|
| 1388 | Io_Encoding_Type_t encodingType, |
---|
| 1389 | Hrc_Node_t *hnode, |
---|
| 1390 | FILE *fp, |
---|
| 1391 | FILE *encFp, |
---|
| 1392 | int verbosity) |
---|
| 1393 | { |
---|
| 1394 | Tbl_Table_t *table, *singleOutputTable; |
---|
| 1395 | int i, j; |
---|
| 1396 | Var_Variable_t *var, *actualVar; |
---|
| 1397 | char *name, *instanceName, *modelName; |
---|
| 1398 | st_generator *gen; |
---|
| 1399 | st_table *blifInputsStTable, *blifOutputsStTable, *printedMvsStTable; |
---|
| 1400 | st_table *encOutputsStTable, *encInputsStTable; |
---|
| 1401 | Hrc_Node_t *subcktHnode; |
---|
| 1402 | Hrc_Model_t *model, *subcktModel; |
---|
| 1403 | Hrc_Subckt_t *subckt; |
---|
| 1404 | Hrc_Manager_t *manager; |
---|
| 1405 | array_t *subcktActualInputVars, *subcktActualOutputVars; |
---|
| 1406 | |
---|
| 1407 | |
---|
| 1408 | printedMvsStTable = st_init_table(strcmp, st_strhash); |
---|
| 1409 | |
---|
| 1410 | /* .model */ |
---|
| 1411 | modelName = Hrc_NodeReadModelName(hnode); |
---|
| 1412 | manager = Hrc_NodeReadManager(hnode); |
---|
| 1413 | model = Hrc_ManagerFindModelByName(manager, modelName); |
---|
| 1414 | (void)fprintf(fp,".model %s\n", modelName); |
---|
| 1415 | |
---|
| 1416 | /* .inputs line of blif file*/ |
---|
| 1417 | if (Hrc_NodeReadNumFormalInputs(hnode) != 0){ |
---|
| 1418 | (void)fprintf(fp,".inputs "); |
---|
| 1419 | Hrc_NodeForEachFormalInput(hnode,i,var){ |
---|
| 1420 | (void)fprintf(fp,"%s0 ",Var_VariableReadName(var)); |
---|
| 1421 | } |
---|
| 1422 | (void)fprintf(fp,"\n"); |
---|
| 1423 | } |
---|
| 1424 | |
---|
| 1425 | /* .outputs line of blif file*/ |
---|
| 1426 | if (Hrc_NodeReadNumFormalOutputs(hnode) != 0){ |
---|
| 1427 | (void)fprintf(fp,".outputs "); |
---|
| 1428 | Hrc_NodeForEachFormalOutput(hnode,i,var){ |
---|
| 1429 | (void)fprintf(fp,"%s0 ",Var_VariableReadName(var)); |
---|
| 1430 | } |
---|
| 1431 | (void)fprintf(fp,"\n"); |
---|
| 1432 | } |
---|
| 1433 | |
---|
| 1434 | /* .subckt stuff */ |
---|
| 1435 | Hrc_ModelForEachSubckt(model,gen,instanceName,subckt){ |
---|
| 1436 | subcktModel = Hrc_SubcktReadModel(subckt); |
---|
| 1437 | subcktHnode = Hrc_ModelReadMasterNode(subcktModel); |
---|
| 1438 | subcktActualInputVars = Hrc_SubcktReadActualInputVars(subckt); |
---|
| 1439 | subcktActualOutputVars = Hrc_SubcktReadActualOutputVars(subckt); |
---|
| 1440 | |
---|
| 1441 | /* .subckt declarations */ |
---|
| 1442 | (void)fprintf(fp,".subckt %s ", |
---|
| 1443 | Hrc_ModelReadName(subcktModel)); |
---|
| 1444 | Hrc_NodeForEachFormalInput(subcktHnode,i,var){ |
---|
| 1445 | actualVar = array_fetch(Var_Variable_t *,subcktActualInputVars,i); |
---|
| 1446 | (void)fprintf(fp,"%s0=%s0 ",Var_VariableReadName(var),Var_VariableReadName(actualVar)); |
---|
| 1447 | } |
---|
| 1448 | Hrc_NodeForEachFormalOutput(subcktHnode,i,var){ |
---|
| 1449 | actualVar = array_fetch(Var_Variable_t *,subcktActualOutputVars,i); |
---|
| 1450 | (void)fprintf(fp,"%s0=%s0 ",Var_VariableReadName(var),Var_VariableReadName(actualVar)); |
---|
| 1451 | } |
---|
| 1452 | (void)fprintf(fp,"\n"); |
---|
| 1453 | } |
---|
| 1454 | |
---|
| 1455 | encOutputsStTable = st_init_table(st_ptrcmp, st_ptrhash); |
---|
| 1456 | encInputsStTable = st_init_table(st_ptrcmp, st_ptrhash); |
---|
| 1457 | blifInputsStTable = st_init_table(strcmp, st_strhash); |
---|
| 1458 | blifOutputsStTable = st_init_table(strcmp, st_strhash); |
---|
| 1459 | |
---|
| 1460 | /* .latch declarations for blif file */ |
---|
| 1461 | IoWriteLatches(hnode, fp, encFp, printedMvsStTable, blifOutputsStTable, blifInputsStTable, encOutputsStTable, encInputsStTable, 0, 0, verbosity); |
---|
| 1462 | Hrc_NodeForEachNameTable(hnode, i, table){ |
---|
| 1463 | if(IoOutputExpansionRequired(table)){ |
---|
| 1464 | if(verbosity > 0){ |
---|
| 1465 | (void)fprintf(stdout, "Splitting into Single Output Table before Processing\n"); |
---|
| 1466 | } |
---|
| 1467 | for(j = 0; j < Tbl_TableReadNumOutputs(table); j++){ |
---|
| 1468 | singleOutputTable = IoMakeSingleOutputTable(table, j); |
---|
| 1469 | _IoTableWriteBlif(encodingType, hnode, singleOutputTable, blifInputsStTable, fp, encFp, |
---|
| 1470 | verbosity); |
---|
| 1471 | Tbl_TableFree(singleOutputTable); |
---|
| 1472 | } |
---|
| 1473 | } |
---|
| 1474 | else{ |
---|
| 1475 | if(!((Tbl_TableReadNumInputs(table) == 0) && (Tbl_TableReadNumOutputs(table) > 1))){ |
---|
| 1476 | _IoTableWriteBlif(encodingType, hnode, table, blifInputsStTable, fp, encFp, |
---|
| 1477 | verbosity); |
---|
| 1478 | } |
---|
| 1479 | } |
---|
| 1480 | } |
---|
| 1481 | st_foreach_item_int(blifInputsStTable, gen, &name, &i){ |
---|
| 1482 | FREE(name); |
---|
| 1483 | } |
---|
| 1484 | st_foreach_item_int(blifOutputsStTable, gen, &name, &i){ |
---|
| 1485 | FREE(name); |
---|
| 1486 | } |
---|
| 1487 | st_free_table(blifInputsStTable); |
---|
| 1488 | st_free_table(blifOutputsStTable); |
---|
| 1489 | st_free_table(encInputsStTable); |
---|
| 1490 | st_free_table(encOutputsStTable); |
---|
| 1491 | st_foreach_item_int(printedMvsStTable, gen, &name, &i){ |
---|
| 1492 | FREE(name); |
---|
| 1493 | } |
---|
| 1494 | st_free_table(printedMvsStTable); |
---|
| 1495 | fprintf(fp,".end\n"); |
---|
| 1496 | return 1; |
---|
| 1497 | } |
---|
| 1498 | |
---|
| 1499 | |
---|
| 1500 | |
---|
| 1501 | /**Function*********************************************************** |
---|
| 1502 | |
---|
| 1503 | |
---|
| 1504 | Synopsis [ Checks if pseudoinput is also a PO] |
---|
| 1505 | |
---|
| 1506 | Description [ Checks if table has 0input, >1 output, or 1 output |
---|
| 1507 | with multiple valued entry] |
---|
| 1508 | |
---|
| 1509 | SideEffects [ ] |
---|
| 1510 | |
---|
| 1511 | SeeAlso [ ] |
---|
| 1512 | **********************************************************************/ |
---|
| 1513 | static int |
---|
| 1514 | _IoCheckPseudoinputIsPO( |
---|
| 1515 | Tbl_Table_t *table) |
---|
| 1516 | { |
---|
| 1517 | int j; |
---|
| 1518 | Var_Variable_t *var = NIL(Var_Variable_t); /* to suppress warning */ |
---|
| 1519 | Tbl_Entry_t *entry; |
---|
| 1520 | int numValues; |
---|
| 1521 | |
---|
| 1522 | if((Tbl_TableReadNumInputs(table) == 0) && (Tbl_TableReadNumOutputs(table) > 1)){ |
---|
| 1523 | /* assume all are pseudoinputs */ |
---|
| 1524 | Tbl_TableForEachOutputVar(table, j, var){ |
---|
| 1525 | if(Var_VariableTestIsPO(var)){ |
---|
| 1526 | return 1; |
---|
| 1527 | } |
---|
| 1528 | } |
---|
| 1529 | } |
---|
| 1530 | |
---|
| 1531 | if(Tbl_TableReadNumInputs(table) == 0){ |
---|
| 1532 | if(Tbl_TableReadNumRows(table) != 0){ |
---|
| 1533 | entry = Tbl_TableReadEntry(table, 0, 0, 1); |
---|
| 1534 | numValues = Tbl_EntryReadNumValues(entry); |
---|
| 1535 | } |
---|
| 1536 | else{ |
---|
| 1537 | entry = Tbl_TableDefaultReadEntry(table, 0); |
---|
| 1538 | numValues = Tbl_EntryReadNumValues(entry); |
---|
| 1539 | } |
---|
| 1540 | |
---|
| 1541 | Tbl_TableForEachOutputVar(table, j, var); |
---|
| 1542 | if(Tbl_TableReadNumRows(table) <= 1){ |
---|
| 1543 | if(numValues > 1){ |
---|
| 1544 | if(Var_VariableTestIsPO(var)){ |
---|
| 1545 | return 1; |
---|
| 1546 | } |
---|
| 1547 | } |
---|
| 1548 | } |
---|
| 1549 | else{ |
---|
| 1550 | if(Var_VariableTestIsPO(var)){ |
---|
| 1551 | return 1; |
---|
| 1552 | } |
---|
| 1553 | } |
---|
| 1554 | } |
---|
| 1555 | |
---|
| 1556 | return 0; |
---|
| 1557 | } |
---|