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diff --git a/src/base/main/mainInt.h b/src/base/main/mainInt.h
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+/**CFile****************************************************************
+
+  FileName    [mainInt.h]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [The main package.]
+
+  Synopsis    [Internal declarations of the main package.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: mainInt.h,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#ifndef __Abc_INT_H__
+#define __Abc_INT_H__
+
+////////////////////////////////////////////////////////////////////////
+///                          INCLUDES                                ///
+////////////////////////////////////////////////////////////////////////
+
+#include "main.h"
+
+////////////////////////////////////////////////////////////////////////
+///                         PARAMETERS                               ///
+////////////////////////////////////////////////////////////////////////
+
+// the current version
+#define ABC_VERSION "UC Berkeley, ABC 1.0"
+
+// the maximum length of an input line 
+#define MAX_STR     32768
+
+////////////////////////////////////////////////////////////////////////
+///                    STRUCTURE DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+struct Abc_Frame_t_
+{
+    // general info
+    char *          sVersion;    // the name of the current version
+    // commands, aliases, etc
+    st_table *      tCommands;   // the command table
+    st_table *      tAliases;    // the alias table
+    st_table *      tFlags;      // the flag table
+    Vec_Ptr_t *     aHistory;    // the command history
+    // the functionality
+    Abc_Ntk_t *     pNtkCur;     // the current network
+    int             nSteps;      // the counter of different network processed
+    // when this flag is 1, the current command is executed in autoexec mode
+    int             fAutoexac;  
+    // output streams
+    FILE *          Out;
+    FILE *          Err;
+    FILE *          Hst;
+    // used for runtime measurement
+    int             TimeCommand; // the runtime of the last command
+    int             TimeTotal;   // the total runtime of all commands
+    int                fBatchMode;     // are we invoked in batch mode?
+    // temporary storage for structural choices
+    Abc_Ntk_t *     pStored;     // the stored networks
+    int             nStored;     // the number of stored networks
+
+    void *          pLibLut;     // the current LUT library
+    void *          pLibGen;     // the current genlib
+    void *          pLibSuper;   // the current supergate library
+};
+
+////////////////////////////////////////////////////////////////////////
+///                       GLOBAL VARIABLES                           ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                       MACRO DEFITIONS                            ///
+////////////////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFITIONS                           ///
+////////////////////////////////////////////////////////////////////////
+
+/*=== mvMain.c ===========================================================*/
+extern int             main( int argc, char * argv[] );
+/*=== mvInit.c ===================================================*/
+extern void            Abc_FrameInit( Abc_Frame_t * pAbc );
+extern void            Abc_FrameEnd( Abc_Frame_t * pAbc );
+/*=== mvFrame.c =====================================================*/
+extern Abc_Frame_t *   Abc_FrameAllocate();
+extern void            Abc_FrameDeallocate( Abc_Frame_t * p );
+/*=== mvUtils.c =====================================================*/
+extern char *          Abc_UtilsGetVersion( Abc_Frame_t * pAbc );
+extern char *          Abc_UtilsGetUsersInput( Abc_Frame_t * pAbc );
+extern void            Abc_UtilsPrintHello( Abc_Frame_t * pAbc );
+extern void            Abc_UtilsPrintUsage( Abc_Frame_t * pAbc, char * ProgName );
+extern void            Abc_UtilsSource( Abc_Frame_t * pAbc );
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+#endif