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/**CFile****************************************************************
FileName [ioWriteBlif.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Command processing package.]
Synopsis [Procedures to write BLIF files.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: ioWriteBlif.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "ioAbc.h"
#include "main.h"
#include "mio.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
static void Io_NtkWrite( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches );
static void Io_NtkWriteOne( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches );
static void Io_NtkWritePis( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches );
static void Io_NtkWritePos( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches );
static void Io_NtkWriteSubckt( FILE * pFile, Abc_Obj_t * pNode );
static void Io_NtkWriteAsserts( FILE * pFile, Abc_Ntk_t * pNtk );
static void Io_NtkWriteNodeGate( FILE * pFile, Abc_Obj_t * pNode, int Length );
static void Io_NtkWriteNodeFanins( FILE * pFile, Abc_Obj_t * pNode );
static void Io_NtkWriteNode( FILE * pFile, Abc_Obj_t * pNode, int Length );
static void Io_NtkWriteLatch( FILE * pFile, Abc_Obj_t * pLatch );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Write the network into a BLIF file with the given name.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_WriteBlifLogic( Abc_Ntk_t * pNtk, char * FileName, int fWriteLatches )
{
Abc_Ntk_t * pNtkTemp;
// derive the netlist
pNtkTemp = Abc_NtkToNetlist(pNtk);
if ( pNtkTemp == NULL )
{
fprintf( stdout, "Writing BLIF has failed.\n" );
return;
}
Io_WriteBlif( pNtkTemp, FileName, fWriteLatches );
Abc_NtkDelete( pNtkTemp );
}
/**Function*************************************************************
Synopsis [Write the network into a BLIF file with the given name.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_WriteBlif( Abc_Ntk_t * pNtk, char * FileName, int fWriteLatches )
{
FILE * pFile;
Abc_Ntk_t * pNtkTemp;
int i;
assert( Abc_NtkIsNetlist(pNtk) );
// start writing the file
pFile = fopen( FileName, "w" );
if ( pFile == NULL )
{
fprintf( stdout, "Io_WriteBlif(): Cannot open the output file.\n" );
return;
}
fprintf( pFile, "# Benchmark \"%s\" written by ABC on %s\n", pNtk->pName, Extra_TimeStamp() );
// write the master network
Io_NtkWrite( pFile, pNtk, fWriteLatches );
// make sure there is no logic hierarchy
assert( Abc_NtkWhiteboxNum(pNtk) == 0 );
// write the hierarchy if present
if ( Abc_NtkBlackboxNum(pNtk) > 0 )
{
Vec_PtrForEachEntry( pNtk->pDesign->vModules, pNtkTemp, i )
{
if ( pNtkTemp == pNtk )
continue;
fprintf( pFile, "\n\n" );
Io_NtkWrite( pFile, pNtkTemp, fWriteLatches );
}
}
fclose( pFile );
}
/**Function*************************************************************
Synopsis [Write the network into a BLIF file with the given name.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWrite( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches )
{
Abc_Ntk_t * pExdc;
assert( Abc_NtkIsNetlist(pNtk) );
// write the model name
fprintf( pFile, ".model %s\n", Abc_NtkName(pNtk) );
// write the network
Io_NtkWriteOne( pFile, pNtk, fWriteLatches );
// write EXDC network if it exists
pExdc = Abc_NtkExdc( pNtk );
if ( pExdc )
{
fprintf( pFile, "\n" );
fprintf( pFile, ".exdc\n" );
Io_NtkWriteOne( pFile, pExdc, fWriteLatches );
}
// finalize the file
fprintf( pFile, ".end\n" );
}
/**Function*************************************************************
Synopsis [Write one network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteOne( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches )
{
ProgressBar * pProgress;
Abc_Obj_t * pNode, * pLatch;
int i, Length;
// write the PIs
fprintf( pFile, ".inputs" );
Io_NtkWritePis( pFile, pNtk, fWriteLatches );
fprintf( pFile, "\n" );
// write the POs
fprintf( pFile, ".outputs" );
Io_NtkWritePos( pFile, pNtk, fWriteLatches );
fprintf( pFile, "\n" );
// write the assertions
if ( Abc_NtkAssertNum(pNtk) )
{
fprintf( pFile, ".asserts" );
Io_NtkWriteAsserts( pFile, pNtk );
fprintf( pFile, "\n" );
}
// write the blackbox
if ( Abc_NtkHasBlackbox( pNtk ) )
{
fprintf( pFile, ".blackbox\n" );
return;
}
// write the timing info
Io_WriteTimingInfo( pFile, pNtk );
// write the latches
if ( fWriteLatches && !Abc_NtkIsComb(pNtk) )
{
fprintf( pFile, "\n" );
Abc_NtkForEachLatch( pNtk, pLatch, i )
Io_NtkWriteLatch( pFile, pLatch );
fprintf( pFile, "\n" );
}
// write the subcircuits
assert( Abc_NtkWhiteboxNum(pNtk) == 0 );
if ( Abc_NtkBlackboxNum(pNtk) > 0 )
{
fprintf( pFile, "\n" );
Abc_NtkForEachBlackbox( pNtk, pNode, i )
Io_NtkWriteSubckt( pFile, pNode );
fprintf( pFile, "\n" );
}
// write each internal node
Length = Abc_NtkHasMapping(pNtk)? Mio_LibraryReadGateNameMax(pNtk->pManFunc) : 0;
pProgress = Extra_ProgressBarStart( stdout, Abc_NtkObjNumMax(pNtk) );
Abc_NtkForEachNode( pNtk, pNode, i )
{
Extra_ProgressBarUpdate( pProgress, i, NULL );
Io_NtkWriteNode( pFile, pNode, Length );
}
Extra_ProgressBarStop( pProgress );
}
/**Function*************************************************************
Synopsis [Writes the primary input list.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWritePis( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches )
{
Abc_Obj_t * pTerm, * pNet;
int LineLength;
int AddedLength;
int NameCounter;
int i;
LineLength = 7;
NameCounter = 0;
if ( fWriteLatches )
{
Abc_NtkForEachPi( pNtk, pTerm, i )
{
pNet = Abc_ObjFanout0(pTerm);
// get the line length after this name is written
AddedLength = strlen(Abc_ObjName(pNet)) + 1;
if ( NameCounter && LineLength + AddedLength + 3 > IO_WRITE_LINE_LENGTH )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", Abc_ObjName(pNet) );
LineLength += AddedLength;
NameCounter++;
}
}
else
{
Abc_NtkForEachCi( pNtk, pTerm, i )
{
pNet = Abc_ObjFanout0(pTerm);
// get the line length after this name is written
AddedLength = strlen(Abc_ObjName(pNet)) + 1;
if ( NameCounter && LineLength + AddedLength + 3 > IO_WRITE_LINE_LENGTH )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", Abc_ObjName(pNet) );
LineLength += AddedLength;
NameCounter++;
}
}
}
/**Function*************************************************************
Synopsis [Writes the primary input list.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWritePos( FILE * pFile, Abc_Ntk_t * pNtk, int fWriteLatches )
{
Abc_Obj_t * pTerm, * pNet;
int LineLength;
int AddedLength;
int NameCounter;
int i;
LineLength = 8;
NameCounter = 0;
if ( fWriteLatches )
{
Abc_NtkForEachPo( pNtk, pTerm, i )
{
pNet = Abc_ObjFanin0(pTerm);
// get the line length after this name is written
AddedLength = strlen(Abc_ObjName(pNet)) + 1;
if ( NameCounter && LineLength + AddedLength + 3 > IO_WRITE_LINE_LENGTH )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", Abc_ObjName(pNet) );
LineLength += AddedLength;
NameCounter++;
}
}
else
{
Abc_NtkForEachCo( pNtk, pTerm, i )
{
if ( Abc_ObjIsAssert(pTerm) )
continue;
pNet = Abc_ObjFanin0(pTerm);
// get the line length after this name is written
AddedLength = strlen(Abc_ObjName(pNet)) + 1;
if ( NameCounter && LineLength + AddedLength + 3 > IO_WRITE_LINE_LENGTH )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", Abc_ObjName(pNet) );
LineLength += AddedLength;
NameCounter++;
}
}
}
/**Function*************************************************************
Synopsis [Writes the assertion list.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteAsserts( FILE * pFile, Abc_Ntk_t * pNtk )
{
Abc_Obj_t * pTerm, * pNet;
int LineLength;
int AddedLength;
int NameCounter;
int i;
LineLength = 8;
NameCounter = 0;
Abc_NtkForEachAssert( pNtk, pTerm, i )
{
pNet = Abc_ObjFanin0(pTerm);
// get the line length after this name is written
AddedLength = strlen(Abc_ObjName(pNet)) + 1;
if ( NameCounter && LineLength + AddedLength + 3 > IO_WRITE_LINE_LENGTH )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", Abc_ObjName(pNet) );
LineLength += AddedLength;
NameCounter++;
}
}
/**Function*************************************************************
Synopsis [Write the latch into a file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteSubckt( FILE * pFile, Abc_Obj_t * pNode )
{
Abc_Ntk_t * pModel = pNode->pData;
Abc_Obj_t * pTerm;
int i;
// write the subcircuit
// fprintf( pFile, ".subckt %s %s", Abc_NtkName(pModel), Abc_ObjName(pNode) );
fprintf( pFile, ".subckt %s", Abc_NtkName(pModel) );
// write pairs of the formal=actual names
Abc_NtkForEachPi( pModel, pTerm, i )
{
fprintf( pFile, " %s", Abc_ObjName(Abc_ObjFanout0(pTerm)) );
pTerm = Abc_ObjFanin( pNode, i );
fprintf( pFile, "=%s", Abc_ObjName(Abc_ObjFanin0(pTerm)) );
}
Abc_NtkForEachPo( pModel, pTerm, i )
{
fprintf( pFile, " %s", Abc_ObjName(Abc_ObjFanin0(pTerm)) );
pTerm = Abc_ObjFanout( pNode, i );
fprintf( pFile, "=%s", Abc_ObjName(Abc_ObjFanout0(pTerm)) );
}
fprintf( pFile, "\n" );
}
/**Function*************************************************************
Synopsis [Write the latch into a file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteLatch( FILE * pFile, Abc_Obj_t * pLatch )
{
Abc_Obj_t * pNetLi, * pNetLo;
int Reset;
pNetLi = Abc_ObjFanin0( Abc_ObjFanin0(pLatch) );
pNetLo = Abc_ObjFanout0( Abc_ObjFanout0(pLatch) );
Reset = (int)(ABC_PTRUINT_T)Abc_ObjData( pLatch );
// write the latch line
fprintf( pFile, ".latch" );
fprintf( pFile, " %10s", Abc_ObjName(pNetLi) );
fprintf( pFile, " %10s", Abc_ObjName(pNetLo) );
fprintf( pFile, " %d\n", Reset-1 );
}
/**Function*************************************************************
Synopsis [Write the node into a file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteNode( FILE * pFile, Abc_Obj_t * pNode, int Length )
{
if ( Abc_NtkHasMapping(pNode->pNtk) )
{
// write the .gate line
fprintf( pFile, ".gate" );
Io_NtkWriteNodeGate( pFile, pNode, Length );
fprintf( pFile, "\n" );
}
else
{
// write the .names line
fprintf( pFile, ".names" );
Io_NtkWriteNodeFanins( pFile, pNode );
fprintf( pFile, "\n" );
// write the cubes
fprintf( pFile, "%s", (char*)Abc_ObjData(pNode) );
}
}
/**Function*************************************************************
Synopsis [Writes the primary input list.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteNodeGate( FILE * pFile, Abc_Obj_t * pNode, int Length )
{
Mio_Gate_t * pGate = pNode->pData;
Mio_Pin_t * pGatePin;
int i;
// write the node
fprintf( pFile, " %-*s ", Length, Mio_GateReadName(pGate) );
for ( pGatePin = Mio_GateReadPins(pGate), i = 0; pGatePin; pGatePin = Mio_PinReadNext(pGatePin), i++ )
fprintf( pFile, "%s=%s ", Mio_PinReadName(pGatePin), Abc_ObjName( Abc_ObjFanin(pNode,i) ) );
assert ( i == Abc_ObjFaninNum(pNode) );
fprintf( pFile, "%s=%s", Mio_GateReadOutName(pGate), Abc_ObjName( Abc_ObjFanout0(pNode) ) );
}
/**Function*************************************************************
Synopsis [Writes the primary input list.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_NtkWriteNodeFanins( FILE * pFile, Abc_Obj_t * pNode )
{
Abc_Obj_t * pNet;
int LineLength;
int AddedLength;
int NameCounter;
char * pName;
int i;
LineLength = 6;
NameCounter = 0;
Abc_ObjForEachFanin( pNode, pNet, i )
{
// get the fanin name
pName = Abc_ObjName(pNet);
// get the line length after the fanin name is written
AddedLength = strlen(pName) + 1;
if ( NameCounter && LineLength + AddedLength + 3 > IO_WRITE_LINE_LENGTH )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", pName );
LineLength += AddedLength;
NameCounter++;
}
// get the output name
pName = Abc_ObjName(Abc_ObjFanout0(pNode));
// get the line length after the output name is written
AddedLength = strlen(pName) + 1;
if ( NameCounter && LineLength + AddedLength > 75 )
{ // write the line extender
fprintf( pFile, " \\\n" );
// reset the line length
LineLength = 0;
NameCounter = 0;
}
fprintf( pFile, " %s", pName );
}
/**Function*************************************************************
Synopsis [Writes the timing info.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_WriteTimingInfo( FILE * pFile, Abc_Ntk_t * pNtk )
{
Abc_Obj_t * pNode;
Abc_Time_t * pTime, * pTimeDef;
int i;
if ( pNtk->pManTime == NULL )
return;
pTimeDef = Abc_NtkReadDefaultArrival( pNtk );
fprintf( pFile, ".default_input_arrival %g %g\n", pTimeDef->Rise, pTimeDef->Fall );
Abc_NtkForEachPi( pNtk, pNode, i )
{
pTime = Abc_NodeReadArrival(pNode);
if ( pTime->Rise == pTimeDef->Rise && pTime->Fall == pTimeDef->Fall )
continue;
// fprintf( pFile, ".input_arrival %s %g %g\n", Abc_ObjName(pNode), pTime->Rise, pTime->Fall );
fprintf( pFile, ".input_arrival %s %g %g\n", Abc_ObjName(Abc_ObjFanout0(pNode)), pTime->Rise, pTime->Fall );
}
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
|
