Version abc50812

1 files changed, 201 insertions, 0 deletions

diff --git a/src/base/io/ioUtil.c b/src/base/io/ioUtil.c
new file mode 100644
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--- /dev/null
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+/**CFile****************************************************************
+
+  FileName    [ioUtil.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Command processing package.]
+
+  Synopsis    [Procedures to write the network in BENCH format.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: ioUtil.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "io.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFITIONS                           ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Creates PI terminal and net.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreatePi( Abc_Ntk_t * pNtk, char * pName )
+{
+    Abc_Obj_t * pNet, * pTerm;
+    // get the PI net
+    pNet  = Abc_NtkFindNet( pNtk, pName );
+    if ( pNet )
+        printf( "Warning: PI \"%s\" appears twice in the list.\n", pName );
+    pNet  = Abc_NtkFindOrCreateNet( pNtk, pName );
+    // add the PI node
+    pTerm = Abc_NtkCreatePi( pNtk );
+    Abc_ObjAddFanin( pNet, pTerm );
+    return pTerm;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Creates PO terminal and net.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreatePo( Abc_Ntk_t * pNtk, char * pName )
+{
+    Abc_Obj_t * pNet, * pTerm;
+    // get the PO net
+    pNet  = Abc_NtkFindNet( pNtk, pName );
+    if ( pNet && Abc_ObjFaninNum(pNet) == 0 )
+        printf( "Warning: PO \"%s\" appears twice in the list.\n", pName );
+    pNet  = Abc_NtkFindOrCreateNet( pNtk, pName );
+    // add the PO node
+    pTerm = Abc_NtkCreatePo( pNtk );
+    Abc_ObjAddFanin( pTerm, pNet );
+    return pTerm;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Create a latch with the given input/output.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreateLatch( Abc_Ntk_t * pNtk, char * pNetLI, char * pNetLO )
+{
+    Abc_Obj_t * pLatch, * pNet;
+    // create a new latch and add it to the network
+    pLatch = Abc_NtkCreateLatch( pNtk );
+    // get the LI net
+    pNet = Abc_NtkFindOrCreateNet( pNtk, pNetLI );
+    Abc_ObjAddFanin( pLatch, pNet );
+    // get the LO net
+    pNet = Abc_NtkFindOrCreateNet( pNtk, pNetLO );
+    Abc_ObjAddFanin( pNet, pLatch );
+    return pLatch;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Create node and the net driven by it.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreateNode( Abc_Ntk_t * pNtk, char * pNameOut, char * pNamesIn[], int nInputs )
+{
+    Abc_Obj_t * pNet, * pNode;
+    int i;
+    // create a new node 
+    pNode = Abc_NtkCreateNode( pNtk );
+    // add the fanin nets
+    for ( i = 0; i < nInputs; i++ )
+    {
+        pNet = Abc_NtkFindOrCreateNet( pNtk, pNamesIn[i] );
+        Abc_ObjAddFanin( pNode, pNet );
+    }
+    // add the fanout net
+    pNet = Abc_NtkFindOrCreateNet( pNtk, pNameOut );
+    Abc_ObjAddFanin( pNet, pNode );
+    return pNode;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Create a constant 0 node driving the net with this name.]
+
+  Description [Assumes that the net already exists.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreateConst( Abc_Ntk_t * pNtk, char * pName, bool fConst1 )
+{
+    Abc_Obj_t * pNet, * pTerm;
+    pTerm = fConst1? Abc_NodeCreateConst1(pNtk) : Abc_NodeCreateConst0(pNtk);
+    pNet  = Abc_NtkFindNet(pNtk, pName);    assert( pNet );
+    Abc_ObjAddFanin( pNet, pTerm );
+    return pTerm;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Create an inverter or buffer for the given net.]
+
+  Description [Assumes that the nets already exist.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreateInv( Abc_Ntk_t * pNtk, char * pNameIn, char * pNameOut )
+{
+    Abc_Obj_t * pNet, * pNode;
+    pNet  = Abc_NtkFindNet(pNtk, pNameIn);     assert( pNet );
+    pNode = Abc_NodeCreateInv(pNtk, pNet);
+    pNet  = Abc_NtkFindNet(pNtk, pNameOut);    assert( pNet );
+    Abc_ObjAddFanin( pNet, pNode );
+    return pNode;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Create an inverter or buffer for the given net.]
+
+  Description [Assumes that the nets already exist.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Obj_t * Io_ReadCreateBuf( Abc_Ntk_t * pNtk, char * pNameIn, char * pNameOut )
+{
+    Abc_Obj_t * pNet, * pNode;
+    pNet  = Abc_NtkFindNet(pNtk, pNameIn);     assert( pNet );
+    pNode = Abc_NodeCreateBuf(pNtk, pNet);
+    pNet  = Abc_NtkFindNet(pNtk, pNameOut);    assert( pNet );
+    Abc_ObjAddFanin( pNet, pNode );
+    return pNet;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+