summaryrefslogtreecommitdiffstats
path: root/abc70930/src/aig/ioa
diff options
context:
space:
mode:
Diffstat (limited to 'abc70930/src/aig/ioa')
-rw-r--r--abc70930/src/aig/ioa/ioa.h80
-rw-r--r--abc70930/src/aig/ioa/ioaReadAig.c312
-rw-r--r--abc70930/src/aig/ioa/ioaUtil.c117
-rw-r--r--abc70930/src/aig/ioa/ioaWriteAig.c292
-rw-r--r--abc70930/src/aig/ioa/module.make3
5 files changed, 804 insertions, 0 deletions
diff --git a/abc70930/src/aig/ioa/ioa.h b/abc70930/src/aig/ioa/ioa.h
new file mode 100644
index 00000000..3458d12e
--- /dev/null
+++ b/abc70930/src/aig/ioa/ioa.h
@@ -0,0 +1,80 @@
+/**CFile****************************************************************
+
+ FileName [ioa.h]
+
+ SystemName [ABC: Logic synthesis and verification system.]
+
+ PackageName [AIG package.]
+
+ Synopsis [External declarations.]
+
+ Author [Alan Mishchenko]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - April 28, 2007.]
+
+ Revision [$Id: ioa.h,v 1.00 2007/04/28 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#ifndef __IOA_H__
+#define __IOA_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+////////////////////////////////////////////////////////////////////////
+/// INCLUDES ///
+////////////////////////////////////////////////////////////////////////
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <time.h>
+
+#include "vec.h"
+#include "bar.h"
+#include "aig.h"
+
+////////////////////////////////////////////////////////////////////////
+/// PARAMETERS ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+/// BASIC TYPES ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+/// MACRO DEFINITIONS ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+/// ITERATORS ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+/// FUNCTION DECLARATIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/*=== ioaReadAig.c ========================================================*/
+extern Aig_Man_t * Ioa_ReadAiger( char * pFileName, int fCheck );
+/*=== ioaWriteAig.c =======================================================*/
+extern void Ioa_WriteAiger( Aig_Man_t * pMan, char * pFileName, int fWriteSymbols );
+/*=== ioaUtil.c =======================================================*/
+extern int Ioa_FileSize( char * pFileName );
+extern char * Ioa_FileNameGeneric( char * FileName );
+extern char * Ioa_TimeStamp();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
diff --git a/abc70930/src/aig/ioa/ioaReadAig.c b/abc70930/src/aig/ioa/ioaReadAig.c
new file mode 100644
index 00000000..937e446f
--- /dev/null
+++ b/abc70930/src/aig/ioa/ioaReadAig.c
@@ -0,0 +1,312 @@
+/**CFile****************************************************************
+
+ FileName [ioaReadAiger.c]
+
+ SystemName [ABC: Logic synthesis and verification system.]
+
+ PackageName [Command processing package.]
+
+ Synopsis [Procedures to read binary AIGER format developed by
+ Armin Biere, Johannes Kepler University (http://fmv.jku.at/)]
+
+ Author [Alan Mishchenko]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - December 16, 2006.]
+
+ Revision [$Id: ioaReadAiger.c,v 1.00 2006/12/16 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "ioa.h"
+
+////////////////////////////////////////////////////////////////////////
+/// DECLARATIONS ///
+////////////////////////////////////////////////////////////////////////
+
+unsigned Ioa_ReadAigerDecode( char ** ppPos );
+
+////////////////////////////////////////////////////////////////////////
+/// FUNCTION DEFINITIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+ Synopsis [Reads the AIG in the binary AIGER format.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+Aig_Man_t * Ioa_ReadAiger( char * pFileName, int fCheck )
+{
+ Bar_Progress_t * pProgress;
+ FILE * pFile;
+ Vec_Ptr_t * vNodes, * vDrivers;//, * vTerms;
+ Aig_Obj_t * pObj, * pNode0, * pNode1;
+ Aig_Man_t * pManNew;
+ int nTotal, nInputs, nOutputs, nLatches, nAnds, nFileSize, i;//, iTerm, nDigits;
+ char * pContents, * pDrivers, * pSymbols, * pCur, * pName;//, * pType;
+ unsigned uLit0, uLit1, uLit;
+
+ // read the file into the buffer
+ nFileSize = Ioa_FileSize( pFileName );
+ pFile = fopen( pFileName, "rb" );
+ pContents = ALLOC( char, nFileSize );
+ fread( pContents, nFileSize, 1, pFile );
+ fclose( pFile );
+
+ // check if the input file format is correct
+ if ( strncmp(pContents, "aig", 3) != 0 )
+ {
+ fprintf( stdout, "Wrong input file format.\n" );
+ return NULL;
+ }
+
+ // read the file type
+ pCur = pContents; while ( *pCur++ != ' ' );
+ // read the number of objects
+ nTotal = atoi( pCur ); while ( *pCur++ != ' ' );
+ // read the number of inputs
+ nInputs = atoi( pCur ); while ( *pCur++ != ' ' );
+ // read the number of latches
+ nLatches = atoi( pCur ); while ( *pCur++ != ' ' );
+ // read the number of outputs
+ nOutputs = atoi( pCur ); while ( *pCur++ != ' ' );
+ // read the number of nodes
+ nAnds = atoi( pCur ); while ( *pCur++ != '\n' );
+ // check the parameters
+ if ( nTotal != nInputs + nLatches + nAnds )
+ {
+ fprintf( stdout, "The paramters are wrong.\n" );
+ return NULL;
+ }
+
+ // allocate the empty AIG
+ pManNew = Aig_ManStart( nAnds );
+ pName = Ioa_FileNameGeneric( pFileName );
+ pManNew->pName = Aig_UtilStrsav( pName );
+// pManNew->pSpec = Ioa_UtilStrsav( pFileName );
+ free( pName );
+
+ // prepare the array of nodes
+ vNodes = Vec_PtrAlloc( 1 + nInputs + nLatches + nAnds );
+ Vec_PtrPush( vNodes, Aig_ManConst0(pManNew) );
+
+ // create the PIs
+ for ( i = 0; i < nInputs + nLatches; i++ )
+ {
+ pObj = Aig_ObjCreatePi(pManNew);
+ Vec_PtrPush( vNodes, pObj );
+ }
+/*
+ // create the POs
+ for ( i = 0; i < nOutputs + nLatches; i++ )
+ {
+ pObj = Aig_ObjCreatePo(pManNew);
+ }
+*/
+ // create the latches
+ pManNew->nRegs = nLatches;
+/*
+ nDigits = Ioa_Base10Log( nLatches );
+ for ( i = 0; i < nLatches; i++ )
+ {
+ pObj = Aig_ObjCreateLatch(pManNew);
+ Aig_LatchSetInit0( pObj );
+ pNode0 = Aig_ObjCreateBi(pManNew);
+ pNode1 = Aig_ObjCreateBo(pManNew);
+ Aig_ObjAddFanin( pObj, pNode0 );
+ Aig_ObjAddFanin( pNode1, pObj );
+ Vec_PtrPush( vNodes, pNode1 );
+ // assign names to latch and its input
+// Aig_ObjAssignName( pObj, Aig_ObjNameDummy("_L", i, nDigits), NULL );
+// printf( "Creating latch %s with input %d and output %d.\n", Aig_ObjName(pObj), pNode0->Id, pNode1->Id );
+ }
+*/
+
+ // remember the beginning of latch/PO literals
+ pDrivers = pCur;
+
+ // scroll to the beginning of the binary data
+ for ( i = 0; i < nLatches + nOutputs; )
+ if ( *pCur++ == '\n' )
+ i++;
+
+ // create the AND gates
+ pProgress = Bar_ProgressStart( stdout, nAnds );
+ for ( i = 0; i < nAnds; i++ )
+ {
+ Bar_ProgressUpdate( pProgress, i, NULL );
+ uLit = ((i + 1 + nInputs + nLatches) << 1);
+ uLit1 = uLit - Ioa_ReadAigerDecode( &pCur );
+ uLit0 = uLit1 - Ioa_ReadAigerDecode( &pCur );
+// assert( uLit1 > uLit0 );
+ pNode0 = Aig_NotCond( Vec_PtrEntry(vNodes, uLit0 >> 1), uLit0 & 1 );
+ pNode1 = Aig_NotCond( Vec_PtrEntry(vNodes, uLit1 >> 1), uLit1 & 1 );
+ assert( Vec_PtrSize(vNodes) == i + 1 + nInputs + nLatches );
+ Vec_PtrPush( vNodes, Aig_And(pManNew, pNode0, pNode1) );
+ }
+ Bar_ProgressStop( pProgress );
+
+ // remember the place where symbols begin
+ pSymbols = pCur;
+
+ // read the latch driver literals
+ vDrivers = Vec_PtrAlloc( nLatches + nOutputs );
+ pCur = pDrivers;
+// Aig_ManForEachLatchInput( pManNew, pObj, i )
+ for ( i = 0; i < nLatches; i++ )
+ {
+ uLit0 = atoi( pCur ); while ( *pCur++ != '\n' );
+ pNode0 = Aig_NotCond( Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) );
+// Aig_ObjAddFanin( pObj, pNode0 );
+ Vec_PtrPush( vDrivers, pNode0 );
+ }
+ // read the PO driver literals
+// Aig_ManForEachPo( pManNew, pObj, i )
+ for ( i = 0; i < nOutputs; i++ )
+ {
+ uLit0 = atoi( pCur ); while ( *pCur++ != '\n' );
+ pNode0 = Aig_NotCond( Vec_PtrEntry(vNodes, uLit0 >> 1), (uLit0 & 1) );//^ (uLit0 < 2) );
+// Aig_ObjAddFanin( pObj, pNode0 );
+ Vec_PtrPush( vDrivers, pNode0 );
+ }
+
+
+ // create the POs
+ for ( i = 0; i < nOutputs; i++ )
+ Aig_ObjCreatePo( pManNew, Vec_PtrEntry(vDrivers, nLatches + i) );
+ for ( i = 0; i < nLatches; i++ )
+ Aig_ObjCreatePo( pManNew, Vec_PtrEntry(vDrivers, i) );
+ Vec_PtrFree( vDrivers );
+
+/*
+ // read the names if present
+ pCur = pSymbols;
+ if ( *pCur != 'c' )
+ {
+ int Counter = 0;
+ while ( pCur < pContents + nFileSize && *pCur != 'c' )
+ {
+ // get the terminal type
+ pType = pCur;
+ if ( *pCur == 'i' )
+ vTerms = pManNew->vPis;
+ else if ( *pCur == 'l' )
+ vTerms = pManNew->vBoxes;
+ else if ( *pCur == 'o' )
+ vTerms = pManNew->vPos;
+ else
+ {
+ fprintf( stdout, "Wrong terminal type.\n" );
+ return NULL;
+ }
+ // get the terminal number
+ iTerm = atoi( ++pCur ); while ( *pCur++ != ' ' );
+ // get the node
+ if ( iTerm >= Vec_PtrSize(vTerms) )
+ {
+ fprintf( stdout, "The number of terminal is out of bound.\n" );
+ return NULL;
+ }
+ pObj = Vec_PtrEntry( vTerms, iTerm );
+ if ( *pType == 'l' )
+ pObj = Aig_ObjFanout0(pObj);
+ // assign the name
+ pName = pCur; while ( *pCur++ != '\n' );
+ // assign this name
+ *(pCur-1) = 0;
+ Aig_ObjAssignName( pObj, pName, NULL );
+ if ( *pType == 'l' )
+ {
+ Aig_ObjAssignName( Aig_ObjFanin0(pObj), Aig_ObjName(pObj), "L" );
+ Aig_ObjAssignName( Aig_ObjFanin0(Aig_ObjFanin0(pObj)), Aig_ObjName(pObj), "_in" );
+ }
+ // mark the node as named
+ pObj->pCopy = (Aig_Obj_t *)Aig_ObjName(pObj);
+ }
+
+ // assign the remaining names
+ Aig_ManForEachPi( pManNew, pObj, i )
+ {
+ if ( pObj->pCopy ) continue;
+ Aig_ObjAssignName( pObj, Aig_ObjName(pObj), NULL );
+ Counter++;
+ }
+ Aig_ManForEachLatchOutput( pManNew, pObj, i )
+ {
+ if ( pObj->pCopy ) continue;
+ Aig_ObjAssignName( pObj, Aig_ObjName(pObj), NULL );
+ Aig_ObjAssignName( Aig_ObjFanin0(pObj), Aig_ObjName(pObj), "L" );
+ Aig_ObjAssignName( Aig_ObjFanin0(Aig_ObjFanin0(pObj)), Aig_ObjName(pObj), "_in" );
+ Counter++;
+ }
+ Aig_ManForEachPo( pManNew, pObj, i )
+ {
+ if ( pObj->pCopy ) continue;
+ Aig_ObjAssignName( pObj, Aig_ObjName(pObj), NULL );
+ Counter++;
+ }
+ if ( Counter )
+ printf( "Ioa_ReadAiger(): Added %d default names for nameless I/O/register objects.\n", Counter );
+ }
+ else
+ {
+// printf( "Ioa_ReadAiger(): I/O/register names are not given. Generating short names.\n" );
+ Aig_ManShortNames( pManNew );
+ }
+*/
+
+ // skipping the comments
+ free( pContents );
+ Vec_PtrFree( vNodes );
+
+ // remove the extra nodes
+ Aig_ManCleanup( pManNew );
+
+ // check the result
+ if ( fCheck && !Aig_ManCheck( pManNew ) )
+ {
+ printf( "Ioa_ReadAiger: The network check has failed.\n" );
+ Aig_ManStop( pManNew );
+ return NULL;
+ }
+ return pManNew;
+}
+
+
+/**Function*************************************************************
+
+ Synopsis [Extracts one unsigned AIG edge from the input buffer.]
+
+ Description [This procedure is a slightly modified version of Armin Biere's
+ procedure "unsigned decode (FILE * file)". ]
+
+ SideEffects [Updates the current reading position.]
+
+ SeeAlso []
+
+***********************************************************************/
+unsigned Ioa_ReadAigerDecode( char ** ppPos )
+{
+ unsigned x = 0, i = 0;
+ unsigned char ch;
+
+// while ((ch = getnoneofch (file)) & 0x80)
+ while ((ch = *(*ppPos)++) & 0x80)
+ x |= (ch & 0x7f) << (7 * i++);
+
+ return x | (ch << (7 * i));
+}
+
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
+
diff --git a/abc70930/src/aig/ioa/ioaUtil.c b/abc70930/src/aig/ioa/ioaUtil.c
new file mode 100644
index 00000000..79dcca1e
--- /dev/null
+++ b/abc70930/src/aig/ioa/ioaUtil.c
@@ -0,0 +1,117 @@
+/**CFile****************************************************************
+
+ FileName [ioaUtil.c]
+
+ SystemName [ABC: Logic synthesis and verification system.]
+
+ PackageName [Command processing package.]
+
+ Synopsis [Procedures to read binary AIGER format developed by
+ Armin Biere, Johannes Kepler University (http://fmv.jku.at/)]
+
+ Author [Alan Mishchenko]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - December 16, 2006.]
+
+ Revision [$Id: ioaUtil.c,v 1.00 2006/12/16 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "ioa.h"
+
+////////////////////////////////////////////////////////////////////////
+/// DECLARATIONS ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+/// FUNCTION DEFINITIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+ Synopsis [Returns the file size.]
+
+ Description [The file should be closed.]
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+int Ioa_FileSize( char * pFileName )
+{
+ FILE * pFile;
+ int nFileSize;
+ pFile = fopen( pFileName, "r" );
+ if ( pFile == NULL )
+ {
+ printf( "Ioa_FileSize(): The file is unavailable (absent or open).\n" );
+ return 0;
+ }
+ fseek( pFile, 0, SEEK_END );
+ nFileSize = ftell( pFile );
+ fclose( pFile );
+ return nFileSize;
+}
+
+/**Function*************************************************************
+
+ Synopsis []
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+char * Ioa_FileNameGeneric( char * FileName )
+{
+ char * pDot;
+ char * pUnd;
+ char * pRes;
+
+ // find the generic name of the file
+ pRes = Aig_UtilStrsav( FileName );
+ // find the pointer to the "." symbol in the file name
+// pUnd = strstr( FileName, "_" );
+ pUnd = NULL;
+ pDot = strstr( FileName, "." );
+ if ( pUnd )
+ pRes[pUnd - FileName] = 0;
+ else if ( pDot )
+ pRes[pDot - FileName] = 0;
+ return pRes;
+}
+
+/**Function*************************************************************
+
+ Synopsis [Returns the time stamp.]
+
+ Description [The file should be closed.]
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+char * Ioa_TimeStamp()
+{
+ static char Buffer[100];
+ char * TimeStamp;
+ time_t ltime;
+ // get the current time
+ time( &ltime );
+ TimeStamp = asctime( localtime( &ltime ) );
+ TimeStamp[ strlen(TimeStamp) - 1 ] = 0;
+ strcpy( Buffer, TimeStamp );
+ return Buffer;
+}
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
+
diff --git a/abc70930/src/aig/ioa/ioaWriteAig.c b/abc70930/src/aig/ioa/ioaWriteAig.c
new file mode 100644
index 00000000..a6c23fd4
--- /dev/null
+++ b/abc70930/src/aig/ioa/ioaWriteAig.c
@@ -0,0 +1,292 @@
+/**CFile****************************************************************
+
+ FileName [ioaWriteAiger.c]
+
+ SystemName [ABC: Logic synthesis and verification system.]
+
+ PackageName [Command processing package.]
+
+ Synopsis [Procedures to write binary AIGER format developed by
+ Armin Biere, Johannes Kepler University (http://fmv.jku.at/)]
+
+ Author [Alan Mishchenko]
+
+ Affiliation [UC Berkeley]
+
+ Date [Ver. 1.0. Started - December 16, 2006.]
+
+ Revision [$Id: ioaWriteAiger.c,v 1.00 2006/12/16 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "ioa.h"
+
+////////////////////////////////////////////////////////////////////////
+/// DECLARATIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/*
+ The following is taken from the AIGER format description,
+ which can be found at http://fmv.jku.at/aiger
+*/
+
+
+/*
+ The AIGER And-Inverter Graph (AIG) Format Version 20061129
+ ----------------------------------------------------------
+ Armin Biere, Johannes Kepler University, 2006
+
+ This report describes the AIG file format as used by the AIGER library.
+ The purpose of this report is not only to motivate and document the
+ format, but also to allow independent implementations of writers and
+ readers by giving precise and unambiguous definitions.
+
+ ...
+
+Introduction
+
+ The name AIGER contains as one part the acronym AIG of And-Inverter
+ Graphs and also if pronounced in German sounds like the name of the
+ 'Eiger', a mountain in the Swiss alps. This choice should emphasize the
+ origin of this format. It was first openly discussed at the Alpine
+ Verification Meeting 2006 in Ascona as a way to provide a simple, compact
+ file format for a model checking competition affiliated to CAV 2007.
+
+ ...
+
+Binary Format Definition
+
+ The binary format is semantically a subset of the ASCII format with a
+ slightly different syntax. The binary format may need to reencode
+ literals, but translating a file in binary format into ASCII format and
+ then back in to binary format will result in the same file.
+
+ The main differences of the binary format to the ASCII format are as
+ follows. After the header the list of input literals and all the
+ current state literals of a latch can be omitted. Furthermore the
+ definitions of the AND gates are binary encoded. However, the symbol
+ table and the comment section are as in the ASCII format.
+
+ The header of an AIGER file in binary format has 'aig' as format
+ identifier, but otherwise is identical to the ASCII header. The standard
+ file extension for the binary format is therefore '.aig'.
+
+ A header for the binary format is still in ASCII encoding:
+
+ aig M I L O A
+
+ Constants, variables and literals are handled in the same way as in the
+ ASCII format. The first simplifying restriction is on the variable
+ indices of inputs and latches. The variable indices of inputs come first,
+ followed by the pseudo-primary inputs of the latches and then the variable
+ indices of all LHS of AND gates:
+
+ input variable indices 1, 2, ... , I
+ latch variable indices I+1, I+2, ... , (I+L)
+ AND variable indices I+L+1, I+L+2, ... , (I+L+A) == M
+
+ The corresponding unsigned literals are
+
+ input literals 2, 4, ... , 2*I
+ latch literals 2*I+2, 2*I+4, ... , 2*(I+L)
+ AND literals 2*(I+L)+2, 2*(I+L)+4, ... , 2*(I+L+A) == 2*M
+
+ All literals have to be defined, and therefore 'M = I + L + A'. With this
+ restriction it becomes possible that the inputs and the current state
+ literals of the latches do not have to be listed explicitly. Therefore,
+ after the header only the list of 'L' next state literals follows, one per
+ latch on a single line, and then the 'O' outputs, again one per line.
+
+ In the binary format we assume that the AND gates are ordered and respect
+ the child parent relation. AND gates with smaller literals on the LHS
+ come first. Therefore we can assume that the literals on the right-hand
+ side of a definition of an AND gate are smaller than the LHS literal.
+ Furthermore we can sort the literals on the RHS, such that the larger
+ literal comes first. A definition thus consists of three literals
+
+ lhs rhs0 rhs1
+
+ with 'lhs' even and 'lhs > rhs0 >= rhs1'. Also the variable indices are
+ pairwise different to avoid combinational self loops. Since the LHS
+ indices of the definitions are all consecutive (as even integers),
+ the binary format does not have to keep 'lhs'. In addition, we can use
+ the order restriction and only write the differences 'delta0' and 'delta1'
+ instead of 'rhs0' and 'rhs1', with
+
+ delta0 = lhs - rhs0, delta1 = rhs0 - rhs1
+
+ The differences will all be strictly positive, and in practice often very
+ small. We can take advantage of this fact by the simple little-endian
+ encoding of unsigned integers of the next section. After the binary delta
+ encoding of the RHSs of all AND gates, the optional symbol table and
+ optional comment section start in the same format as in the ASCII case.
+
+ ...
+
+*/
+
+static unsigned Ioa_ObjMakeLit( int Var, int fCompl ) { return (Var << 1) | fCompl; }
+static unsigned Ioa_ObjAigerNum( Aig_Obj_t * pObj ) { return (unsigned)pObj->pData; }
+static void Ioa_ObjSetAigerNum( Aig_Obj_t * pObj, unsigned Num ) { pObj->pData = (void *)Num; }
+
+int Ioa_WriteAigerEncode( char * pBuffer, int Pos, unsigned x );
+
+////////////////////////////////////////////////////////////////////////
+/// FUNCTION DEFINITIONS ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+ Synopsis [Writes the AIG in the binary AIGER format.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Ioa_WriteAiger( Aig_Man_t * pMan, char * pFileName, int fWriteSymbols )
+{
+ Bar_Progress_t * pProgress;
+ FILE * pFile;
+ Aig_Obj_t * pObj, * pDriver;
+ int i, nNodes, Pos, nBufferSize;
+ unsigned char * pBuffer;
+ unsigned uLit0, uLit1, uLit;
+
+// assert( Aig_ManIsStrash(pMan) );
+ // start the output stream
+ pFile = fopen( pFileName, "wb" );
+ if ( pFile == NULL )
+ {
+ fprintf( stdout, "Ioa_WriteAiger(): Cannot open the output file \"%s\".\n", pFileName );
+ return;
+ }
+/*
+ Aig_ManForEachLatch( pMan, pObj, i )
+ if ( !Aig_LatchIsInit0(pObj) )
+ {
+ fprintf( stdout, "Ioa_WriteAiger(): Cannot write AIGER format with non-0 latch init values. Run \"zero\".\n" );
+ return;
+ }
+*/
+ // set the node numbers to be used in the output file
+ nNodes = 0;
+ Ioa_ObjSetAigerNum( Aig_ManConst1(pMan), nNodes++ );
+ Aig_ManForEachPi( pMan, pObj, i )
+ Ioa_ObjSetAigerNum( pObj, nNodes++ );
+ Aig_ManForEachNode( pMan, pObj, i )
+ Ioa_ObjSetAigerNum( pObj, nNodes++ );
+
+ // write the header "M I L O A" where M = I + L + A
+ fprintf( pFile, "aig %u %u %u %u %u\n",
+ Aig_ManPiNum(pMan) + Aig_ManNodeNum(pMan),
+ Aig_ManPiNum(pMan) - Aig_ManRegNum(pMan),
+ Aig_ManRegNum(pMan),
+ Aig_ManPoNum(pMan) - Aig_ManRegNum(pMan),
+ Aig_ManNodeNum(pMan) );
+
+ // if the driver node is a constant, we need to complement the literal below
+ // because, in the AIGER format, literal 0/1 is represented as number 0/1
+ // while, in ABC, constant 1 node has number 0 and so literal 0/1 will be 1/0
+
+ // write latch drivers
+ Aig_ManForEachLiSeq( pMan, pObj, i )
+ {
+ pDriver = Aig_ObjFanin0(pObj);
+ fprintf( pFile, "%u\n", Ioa_ObjMakeLit( Ioa_ObjAigerNum(pDriver), Aig_ObjFaninC0(pObj) ^ (Ioa_ObjAigerNum(pDriver) == 0) ) );
+ }
+
+ // write PO drivers
+ Aig_ManForEachPoSeq( pMan, pObj, i )
+ {
+ pDriver = Aig_ObjFanin0(pObj);
+ fprintf( pFile, "%u\n", Ioa_ObjMakeLit( Ioa_ObjAigerNum(pDriver), Aig_ObjFaninC0(pObj) ^ (Ioa_ObjAigerNum(pDriver) == 0) ) );
+ }
+
+ // write the nodes into the buffer
+ Pos = 0;
+ nBufferSize = 6 * Aig_ManNodeNum(pMan) + 100; // skeptically assuming 3 chars per one AIG edge
+ pBuffer = ALLOC( char, nBufferSize );
+ pProgress = Bar_ProgressStart( stdout, Aig_ManObjNumMax(pMan) );
+ Aig_ManForEachNode( pMan, pObj, i )
+ {
+ Bar_ProgressUpdate( pProgress, i, NULL );
+ uLit = Ioa_ObjMakeLit( Ioa_ObjAigerNum(pObj), 0 );
+ uLit0 = Ioa_ObjMakeLit( Ioa_ObjAigerNum(Aig_ObjFanin0(pObj)), Aig_ObjFaninC0(pObj) );
+ uLit1 = Ioa_ObjMakeLit( Ioa_ObjAigerNum(Aig_ObjFanin1(pObj)), Aig_ObjFaninC1(pObj) );
+ assert( uLit0 < uLit1 );
+ Pos = Ioa_WriteAigerEncode( pBuffer, Pos, uLit - uLit1 );
+ Pos = Ioa_WriteAigerEncode( pBuffer, Pos, uLit1 - uLit0 );
+ if ( Pos > nBufferSize - 10 )
+ {
+ printf( "Ioa_WriteAiger(): AIGER generation has failed because the allocated buffer is too small.\n" );
+ fclose( pFile );
+ return;
+ }
+ }
+ assert( Pos < nBufferSize );
+ Bar_ProgressStop( pProgress );
+
+ // write the buffer
+ fwrite( pBuffer, 1, Pos, pFile );
+ free( pBuffer );
+/*
+ // write the symbol table
+ if ( fWriteSymbols )
+ {
+ // write PIs
+ Aig_ManForEachPi( pMan, pObj, i )
+ fprintf( pFile, "i%d %s\n", i, Aig_ObjName(pObj) );
+ // write latches
+ Aig_ManForEachLatch( pMan, pObj, i )
+ fprintf( pFile, "l%d %s\n", i, Aig_ObjName(Aig_ObjFanout0(pObj)) );
+ // write POs
+ Aig_ManForEachPo( pMan, pObj, i )
+ fprintf( pFile, "o%d %s\n", i, Aig_ObjName(pObj) );
+ }
+*/
+ // write the comment
+ fprintf( pFile, "c\n" );
+ if ( pMan->pName )
+ fprintf( pFile, ".model %s\n", pMan->pName );
+ fprintf( pFile, "This file was produced by the AIG package in ABC on %s\n", Ioa_TimeStamp() );
+ fprintf( pFile, "For information about AIGER format, refer to %s\n", "http://fmv.jku.at/aiger" );
+ fclose( pFile );
+}
+
+/**Function*************************************************************
+
+ Synopsis [Adds one unsigned AIG edge to the output buffer.]
+
+ Description [This procedure is a slightly modified version of Armin Biere's
+ procedure "void encode (FILE * file, unsigned x)" ]
+
+ SideEffects [Returns the current writing position.]
+
+ SeeAlso []
+
+***********************************************************************/
+int Ioa_WriteAigerEncode( char * pBuffer, int Pos, unsigned x )
+{
+ unsigned char ch;
+ while (x & ~0x7f)
+ {
+ ch = (x & 0x7f) | 0x80;
+// putc (ch, file);
+ pBuffer[Pos++] = ch;
+ x >>= 7;
+ }
+ ch = x;
+// putc (ch, file);
+ pBuffer[Pos++] = ch;
+ return Pos;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+/// END OF FILE ///
+////////////////////////////////////////////////////////////////////////
+
+
diff --git a/abc70930/src/aig/ioa/module.make b/abc70930/src/aig/ioa/module.make
new file mode 100644
index 00000000..66b4a0d5
--- /dev/null
+++ b/abc70930/src/aig/ioa/module.make
@@ -0,0 +1,3 @@
+SRC += src/aig/ioa/ioaReadAig.c \
+ src/aig/ioa/ioaWriteAig.c \
+ src/aig/ioa/ioaUtil.c
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 01:17:26 +0000