Version abc71001

1 files changed, 235 insertions, 0 deletions

diff --git a/src/base/io/ioReadEdif.c b/src/base/io/ioReadEdif.c
new file mode 100644
index 00000000..188e5b8c
--- /dev/null
+++ b/src/base/io/ioReadEdif.c
@@ -0,0 +1,235 @@
+/**CFile****************************************************************
+
+  FileName    [ioReadEdif.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Command processing package.]
+
+  Synopsis    [Procedure to read ISCAS benchmarks in EDIF.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: ioReadEdif.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "io.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+static Abc_Ntk_t * Io_ReadEdifNetwork( Extra_FileReader_t * p );
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Reads the network from an EDIF file.]
+
+  Description [Works only for the ISCAS benchmarks.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Ntk_t * Io_ReadEdif( char * pFileName, int fCheck )
+{
+    Extra_FileReader_t * p;
+    Abc_Ntk_t * pNtk;
+
+    printf( "Currently this parser does not work!\n" );
+    return NULL;
+
+    // start the file
+    p = Extra_FileReaderAlloc( pFileName, "#", "\n\r", " \t()" );
+    if ( p == NULL )
+        return NULL;
+
+    // read the network
+    pNtk = Io_ReadEdifNetwork( p );
+    Extra_FileReaderFree( p );
+    if ( pNtk == NULL )
+        return NULL;
+
+    // make sure that everything is okay with the network structure
+    if ( fCheck && !Abc_NtkCheckRead( pNtk ) )
+    {
+        printf( "Io_ReadEdif: The network check has failed.\n" );
+        Abc_NtkDelete( pNtk );
+        return NULL;
+    }
+    return pNtk;
+}
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Ntk_t * Io_ReadEdifNetwork( Extra_FileReader_t * p )
+{
+    ProgressBar * pProgress;
+    Vec_Ptr_t * vTokens;
+    Abc_Ntk_t * pNtk;
+    Abc_Obj_t * pNet, * pObj, * pFanout;
+    char * pGateName, * pNetName;
+    int fTokensReady, iLine, i;
+
+    // read the first line
+    vTokens = Extra_FileReaderGetTokens(p);
+    if ( strcmp( vTokens->pArray[0], "edif" ) != 0 )
+    {
+        printf( "%s: Wrong input file format.\n", Extra_FileReaderGetFileName(p) );
+        return NULL;
+    }
+    
+    // allocate the empty network
+    pNtk = Abc_NtkStartRead( Extra_FileReaderGetFileName(p) );
+
+    // go through the lines of the file
+    fTokensReady = 0;
+    pProgress = Extra_ProgressBarStart( stdout, Extra_FileReaderGetFileSize(p) );
+    for ( iLine = 1; fTokensReady || (vTokens = Extra_FileReaderGetTokens(p)); iLine++ )
+    {
+        Extra_ProgressBarUpdate( pProgress, Extra_FileReaderGetCurPosition(p), NULL );
+
+        // get the type of the line
+        fTokensReady = 0;
+        if ( strcmp( vTokens->pArray[0], "instance" ) == 0 )
+        { 
+            pNetName = vTokens->pArray[1];
+            pNet = Abc_NtkFindOrCreateNet( pNtk, pNetName );
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            pGateName = vTokens->pArray[1];
+            if ( strncmp( pGateName, "Flip", 4 ) == 0 )
+            {
+                pObj = Abc_NtkCreateLatch( pNtk );
+                Abc_LatchSetInit0( pObj );
+            }
+            else
+            {
+                pObj = Abc_NtkCreateNode( pNtk );
+//                pObj->pData = Abc_NtkRegisterName( pNtk, pGateName );
+                pObj->pData = Extra_UtilStrsav( pGateName ); // memory leak!!!
+            }
+            Abc_ObjAddFanin( pNet, pObj );
+        }
+        else if ( strcmp( vTokens->pArray[0], "net" ) == 0 )
+        {
+            pNetName = vTokens->pArray[1];
+            if ( strcmp( pNetName, "CK" ) == 0 || strcmp( pNetName, "RESET" ) == 0 )
+                continue;
+            if ( strcmp( pNetName + strlen(pNetName) - 4, "_out" ) == 0 )
+                pNetName[strlen(pNetName) - 4] = 0;
+            pNet = Abc_NtkFindNet( pNtk, pNetName );
+            assert( pNet );
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            while ( strcmp( vTokens->pArray[0], "portRef" ) == 0 )
+            {
+                if ( strcmp( pNetName, vTokens->pArray[3] ) != 0 )
+                {
+                    pFanout = Abc_NtkFindNet( pNtk, vTokens->pArray[3] );
+                    Abc_ObjAddFanin( Abc_ObjFanin0(pFanout), pNet );
+                }
+                vTokens = Extra_FileReaderGetTokens(p);
+            }
+            fTokensReady = 1;
+        }
+        else if ( strcmp( vTokens->pArray[0], "library" ) == 0 )
+        {
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            vTokens = Extra_FileReaderGetTokens(p);
+            while ( strcmp( vTokens->pArray[0], "port" ) == 0 )
+            {
+                pNetName = vTokens->pArray[1];
+                if ( strcmp( pNetName, "CK" ) == 0 || strcmp( pNetName, "RESET" ) == 0 )
+                {
+                    vTokens = Extra_FileReaderGetTokens(p);
+                    continue;
+                }
+                if ( strcmp( pNetName + strlen(pNetName) - 3, "_PO" ) == 0 )
+                    pNetName[strlen(pNetName) - 3] = 0;
+                if ( strcmp( vTokens->pArray[3], "INPUT" ) == 0 )
+                    Io_ReadCreatePi( pNtk, vTokens->pArray[1] );
+                else if ( strcmp( vTokens->pArray[3], "OUTPUT" ) == 0 )
+                    Io_ReadCreatePo( pNtk, vTokens->pArray[1] );
+                else
+                {
+                    printf( "%s (line %d): Wrong interface specification.\n", Extra_FileReaderGetFileName(p), iLine );
+                    Abc_NtkDelete( pNtk );
+                    return NULL;
+                }
+                vTokens = Extra_FileReaderGetTokens(p);
+            }
+        }
+        else if ( strcmp( vTokens->pArray[0], "design" ) == 0 )
+        {
+            free( pNtk->pName ); 
+            pNtk->pName = Extra_UtilStrsav( vTokens->pArray[3] );
+            break;
+        }
+    }
+    Extra_ProgressBarStop( pProgress );
+
+    // assign logic functions
+    Abc_NtkForEachNode( pNtk, pObj, i )
+    {
+        if ( strncmp( pObj->pData, "And", 3 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateAnd(pNtk->pManFunc, Abc_ObjFaninNum(pObj), NULL) );
+        else if ( strncmp( pObj->pData, "Or", 2 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateOr(pNtk->pManFunc, Abc_ObjFaninNum(pObj), NULL) );
+        else if ( strncmp( pObj->pData, "Nand", 4 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateNand(pNtk->pManFunc, Abc_ObjFaninNum(pObj)) );
+        else if ( strncmp( pObj->pData, "Nor", 3 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateNor(pNtk->pManFunc, Abc_ObjFaninNum(pObj)) );
+        else if ( strncmp( pObj->pData, "Exor", 4 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateXor(pNtk->pManFunc, Abc_ObjFaninNum(pObj)) );
+        else if ( strncmp( pObj->pData, "Exnor", 5 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateNxor(pNtk->pManFunc, Abc_ObjFaninNum(pObj)) );
+        else if ( strncmp( pObj->pData, "Inv", 3 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateInv(pNtk->pManFunc) );
+        else if ( strncmp( pObj->pData, "Buf", 3 ) == 0 )
+            Abc_ObjSetData( pObj, Abc_SopCreateBuf(pNtk->pManFunc) );
+        else
+        {
+            printf( "%s: Unknown gate type \"%s\".\n", Extra_FileReaderGetFileName(p), pObj->pData );
+            Abc_NtkDelete( pNtk );
+            return NULL;
+        }
+    }
+    // check if constants have been added
+//    if ( pNet = Abc_NtkFindNet( pNtk, "VDD" ) )
+//        Io_ReadCreateConst( pNtk, "VDD", 1 );
+//    if ( pNet = Abc_NtkFindNet( pNtk, "GND" ) )
+//        Io_ReadCreateConst( pNtk, "GND", 0 );
+
+    Abc_NtkFinalizeRead( pNtk );
+    return pNtk;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+