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/**CFile****************************************************************
FileName [cbaReadBlif.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Hierarchical word-level netlist.]
Synopsis [BLIF parser.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - November 29, 2014.]
Revision [$Id: cbaReadBlif.c,v 1.00 2014/11/29 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cba.h"
#include "cbaPrs.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
// BLIF keywords
typedef enum {
PRS_BLIF_NONE = 0, // 0: unused
PRS_BLIF_MODEL, // 1: .model
PRS_BLIF_INOUTS, // 2: .inouts
PRS_BLIF_INPUTS, // 3: .inputs
PRS_BLIF_OUTPUTS, // 4: .outputs
PRS_BLIF_NAMES, // 5: .names
PRS_BLIF_SUBCKT, // 6: .subckt
PRS_BLIF_GATE, // 7: .gate
PRS_BLIF_LATCH, // 8: .latch
PRS_BLIF_SHORT, // 9: .short
PRS_BLIF_END, // 10: .end
PRS_BLIF_UNKNOWN // 11: unknown
} Cba_BlifType_t;
const char * s_BlifTypes[PRS_BLIF_UNKNOWN+1] = {
NULL, // 0: unused
".model", // 1: .model
".inouts", // 2: .inputs
".inputs", // 3: .inputs
".outputs", // 4: .outputs
".names", // 5: .names
".subckt", // 6: .subckt
".gate", // 7: .gate
".latch", // 8: .latch
".short", // 9: .short
".end", // 10: .end
NULL // 11: unknown
};
static inline void Prs_NtkAddBlifDirectives( Prs_Man_t * p )
{
int i;
for ( i = 1; s_BlifTypes[i]; i++ )
Abc_NamStrFindOrAdd( p->pStrs, (char *)s_BlifTypes[i], NULL );
assert( Abc_NamObjNumMax(p->pStrs) == i );
}
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Reading characters.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Prs_CharIsSpace( char c ) { return c == ' ' || c == '\t' || c == '\r'; }
static inline int Prs_CharIsStop( char c ) { return c == '#' || c == '\\' || c == '\n' || c == '='; }
static inline int Prs_CharIsLit( char c ) { return c == '0' || c == '1' || c == '-'; }
static inline int Prs_ManIsSpace( Prs_Man_t * p ) { return Prs_CharIsSpace(*p->pCur); }
static inline int Prs_ManIsStop( Prs_Man_t * p ) { return Prs_CharIsStop(*p->pCur); }
static inline int Prs_ManIsLit( Prs_Man_t * p ) { return Prs_CharIsLit(*p->pCur); }
static inline int Prs_ManIsChar( Prs_Man_t * p, char c ) { return *p->pCur == c; }
static inline int Prs_ManIsChar2( Prs_Man_t * p, char c ) { return *p->pCur++ == c; }
static inline void Prs_ManSkip( Prs_Man_t * p ) { p->pCur++; }
static inline char Prs_ManSkip2( Prs_Man_t * p ) { return *p->pCur++; }
/**Function*************************************************************
Synopsis [Reading names.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Prs_ManSkipToChar( Prs_Man_t * p, char c )
{
while ( !Prs_ManIsChar(p, c) )
Prs_ManSkip(p);
}
static inline void Prs_ManSkipSpaces( Prs_Man_t * p )
{
while ( 1 )
{
while ( Prs_ManIsSpace(p) )
Prs_ManSkip(p);
if ( Prs_ManIsChar(p, '\\') )
{
Prs_ManSkipToChar( p, '\n' );
Prs_ManSkip(p);
continue;
}
if ( Prs_ManIsChar(p, '#') )
Prs_ManSkipToChar( p, '\n' );
break;
}
assert( !Prs_ManIsSpace(p) );
}
static inline int Prs_ManReadName( Prs_Man_t * p )
{
char * pStart;
Prs_ManSkipSpaces( p );
if ( Prs_ManIsChar(p, '\n') )
return 0;
pStart = p->pCur;
while ( !Prs_ManIsSpace(p) && !Prs_ManIsStop(p) )
Prs_ManSkip(p);
if ( pStart == p->pCur )
return 0;
return Abc_NamStrFindOrAddLim( p->pStrs, pStart, p->pCur, NULL );
}
static inline int Prs_ManReadList( Prs_Man_t * p, Vec_Int_t * vOrder, int Type )
{
int iToken;
Vec_IntClear( &p->vTemp );
while ( (iToken = Prs_ManReadName(p)) )
{
Vec_IntPush( &p->vTemp, iToken );
Vec_IntPush( vOrder, Abc_Var2Lit2(iToken, Type) );
}
if ( Vec_IntSize(&p->vTemp) == 0 ) return Prs_ManErrorSet(p, "Signal list is empty.", 1);
return 0;
}
static inline int Prs_ManReadList2( Prs_Man_t * p )
{
int iToken;
Vec_IntClear( &p->vTemp );
while ( (iToken = Prs_ManReadName(p)) )
Vec_IntPushTwo( &p->vTemp, 0, iToken );
if ( Vec_IntSize(&p->vTemp) == 0 ) return Prs_ManErrorSet(p, "Signal list is empty.", 1);
return 0;
}
static inline int Prs_ManReadList3( Prs_Man_t * p )
{
Vec_IntClear( &p->vTemp );
while ( !Prs_ManIsChar(p, '\n') )
{
int iToken = Prs_ManReadName(p);
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read formal name.", 1);
Vec_IntPush( &p->vTemp, iToken );
Prs_ManSkipSpaces( p );
if ( !Prs_ManIsChar2(p, '=') ) return Prs_ManErrorSet(p, "Cannot find symbol \"=\".", 1);
iToken = Prs_ManReadName(p);
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read actual name.", 1);
Vec_IntPush( &p->vTemp, iToken );
Prs_ManSkipSpaces( p );
}
if ( Vec_IntSize(&p->vTemp) == 0 ) return Prs_ManErrorSet(p, "Cannot read a list of formal/actual names.", 1);
if ( Vec_IntSize(&p->vTemp) % 2 ) return Prs_ManErrorSet(p, "The number of formal/actual names is not even.", 1);
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Prs_ManReadCube( Prs_Man_t * p )
{
assert( Prs_ManIsLit(p) );
while ( Prs_ManIsLit(p) )
Vec_StrPush( &p->vCover, Prs_ManSkip2(p) );
Prs_ManSkipSpaces( p );
if ( Prs_ManIsChar(p, '\n') )
{
if ( Vec_StrSize(&p->vCover) != 1 ) return Prs_ManErrorSet(p, "Cannot read cube.", 1);
// fix single literal cube by adding space
Vec_StrPush( &p->vCover, Vec_StrEntry(&p->vCover,0) );
Vec_StrWriteEntry( &p->vCover, 0, ' ' );
Vec_StrPush( &p->vCover, '\n' );
return 0;
}
if ( !Prs_ManIsLit(p) ) return Prs_ManErrorSet(p, "Cannot read output literal.", 1);
Vec_StrPush( &p->vCover, ' ' );
Vec_StrPush( &p->vCover, Prs_ManSkip2(p) );
Vec_StrPush( &p->vCover, '\n' );
Prs_ManSkipSpaces( p );
if ( !Prs_ManIsChar(p, '\n') ) return Prs_ManErrorSet(p, "Cannot read end of cube.", 1);
return 0;
}
static inline void Prs_ManSaveCover( Prs_Man_t * p )
{
int iToken;
if ( Vec_StrSize(&p->vCover) == 0 )
p->pNtk->fHasC0s = 1;
else if ( Vec_StrSize(&p->vCover) == 2 )
{
if ( Vec_StrEntryLast(&p->vCover) == '0' )
p->pNtk->fHasC0s = 1;
else if ( Vec_StrEntryLast(&p->vCover) == '1' )
p->pNtk->fHasC1s = 1;
else assert( 0 );
}
assert( Vec_StrSize(&p->vCover) > 0 );
Vec_StrPush( &p->vCover, '\0' );
//iToken = Abc_NamStrFindOrAdd( p->pStrs, Vec_StrArray(&p->vCover), NULL );
iToken = Ptr_SopToType( Vec_StrArray(&p->vCover) );
Vec_StrClear( &p->vCover );
// set the cover to the module of this box
assert( Prs_BoxNtk(p->pNtk, Prs_NtkBoxNum(p->pNtk)-1) == 1 ); // default const 0
Prs_BoxSetNtk( p->pNtk, Prs_NtkBoxNum(p->pNtk)-1, iToken );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Prs_ManReadInouts( Prs_Man_t * p )
{
if ( Prs_ManReadList(p, &p->pNtk->vOrder, 3) ) return 1;
Vec_IntAppend( &p->pNtk->vInouts, &p->vTemp );
return 0;
}
static inline int Prs_ManReadInputs( Prs_Man_t * p )
{
if ( Prs_ManReadList(p, &p->pNtk->vOrder, 1) ) return 1;
Vec_IntAppend( &p->pNtk->vInputs, &p->vTemp );
return 0;
}
static inline int Prs_ManReadOutputs( Prs_Man_t * p )
{
if ( Prs_ManReadList(p, &p->pNtk->vOrder, 2) ) return 1;
Vec_IntAppend( &p->pNtk->vOutputs, &p->vTemp );
return 0;
}
static inline int Prs_ManReadNode( Prs_Man_t * p )
{
if ( Prs_ManReadList2(p) ) return 1;
// save results
Prs_NtkAddBox( p->pNtk, 1, 0, &p->vTemp ); // default const 0 function
return 0;
}
static inline int Prs_ManReadBox( Prs_Man_t * p, int fGate )
{
int iToken = Prs_ManReadName(p);
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read model name.", 1);
if ( Prs_ManReadList3(p) ) return 1;
// save results
Prs_NtkAddBox( p->pNtk, iToken, 0, &p->vTemp );
if ( fGate ) p->pNtk->fMapped = 1;
return 0;
}
static inline int Prs_ManReadLatch( Prs_Man_t * p )
{
int iToken = Prs_ManReadName(p);
Vec_IntClear( &p->vTemp );
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read latch input.", 1);
Vec_IntWriteEntry( &p->vTemp, 1, iToken );
iToken = Prs_ManReadName(p);
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read latch output.", 1);
Vec_IntWriteEntry( &p->vTemp, 0, iToken );
Prs_ManSkipSpaces( p );
if ( Prs_ManIsChar(p, '0') )
iToken = 0;
else if ( Prs_ManIsChar(p, '1') )
iToken = 1;
else
iToken = 2;
Prs_ManSkipToChar( p, '\n' );
// save results
Prs_NtkAddBox( p->pNtk, -1, iToken, &p->vTemp ); // -1 stands for latch
return 0;
}
static inline int Prs_ManReadShort( Prs_Man_t * p )
{
int iToken = Prs_ManReadName(p);
Vec_IntClear( &p->vTemp );
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read .short input.", 1);
Vec_IntWriteEntry( &p->vTemp, 1, iToken );
iToken = Prs_ManReadName(p);
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read .short output.", 1);
Vec_IntWriteEntry( &p->vTemp, 0, iToken );
Prs_ManSkipSpaces( p );
if ( !Prs_ManIsChar(p, '\n') ) return Prs_ManErrorSet(p, "Trailing symbols on .short line.", 1);
// save results
iToken = Abc_NamStrFindOrAdd( p->pStrs, "1 1\n", NULL );
Prs_NtkAddBox( p->pNtk, iToken, 0, &p->vTemp );
return 0;
}
static inline int Prs_ManReadModel( Prs_Man_t * p )
{
int iToken;
if ( p->pNtk != NULL ) return Prs_ManErrorSet(p, "Parsing previous model is unfinished.", 1);
iToken = Prs_ManReadName(p);
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read model name.", 1);
Prs_ManInitializeNtk( p, iToken, 0 );
Prs_ManSkipSpaces( p );
if ( !Prs_ManIsChar(p, '\n') ) return Prs_ManErrorSet(p, "Trailing symbols on .model line.", 1);
return 0;
}
static inline int Prs_ManReadEnd( Prs_Man_t * p )
{
if ( p->pNtk == 0 ) return Prs_ManErrorSet(p, "Directive .end without .model.", 1);
//printf( "Saving model \"%s\".\n", Abc_NamStr(p->pStrs, p->iModuleName) );
Prs_ManFinalizeNtk( p );
Prs_ManSkipSpaces( p );
if ( !Prs_ManIsChar(p, '\n') ) return Prs_ManErrorSet(p, "Trailing symbols on .end line.", 1);
return 0;
}
static inline int Prs_ManReadDirective( Prs_Man_t * p )
{
int iToken;
if ( !Prs_ManIsChar(p, '.') )
return Prs_ManReadCube( p );
if ( Vec_StrSize(&p->vCover) > 0 ) // SOP was specified for the previous node
Prs_ManSaveCover( p );
iToken = Prs_ManReadName( p );
if ( iToken == PRS_BLIF_MODEL )
return Prs_ManReadModel( p );
if ( iToken == PRS_BLIF_INOUTS )
return Prs_ManReadInouts( p );
if ( iToken == PRS_BLIF_INPUTS )
return Prs_ManReadInputs( p );
if ( iToken == PRS_BLIF_OUTPUTS )
return Prs_ManReadOutputs( p );
if ( iToken == PRS_BLIF_NAMES )
return Prs_ManReadNode( p );
if ( iToken == PRS_BLIF_SUBCKT )
return Prs_ManReadBox( p, 0 );
if ( iToken == PRS_BLIF_GATE )
return Prs_ManReadBox( p, 1 );
if ( iToken == PRS_BLIF_LATCH )
return Prs_ManReadLatch( p );
if ( iToken == PRS_BLIF_SHORT )
return Prs_ManReadShort( p );
if ( iToken == PRS_BLIF_END )
return Prs_ManReadEnd( p );
printf( "Cannot read directive \"%s\".\n", Abc_NamStr(p->pStrs, iToken) );
return 1;
}
static inline int Prs_ManReadLines( Prs_Man_t * p )
{
while ( p->pCur[1] != '\0' )
{
assert( Prs_ManIsChar(p, '\n') );
Prs_ManSkip(p);
Prs_ManSkipSpaces( p );
if ( Prs_ManIsChar(p, '\n') )
continue;
if ( Prs_ManReadDirective(p) )
return 1;
}
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Prs_ManReadBlif( char * pFileName )
{
Vec_Ptr_t * vPrs = NULL;
Prs_Man_t * p = Prs_ManAlloc( pFileName );
if ( p == NULL )
return NULL;
Prs_NtkAddBlifDirectives( p );
Prs_ManReadLines( p );
if ( Prs_ManErrorPrint(p) )
ABC_SWAP( Vec_Ptr_t *, vPrs, p->vNtks );
Prs_ManFree( p );
return vPrs;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Prs_ManReadBlifTest()
{
abctime clk = Abc_Clock();
extern void Prs_ManWriteBlif( char * pFileName, Vec_Ptr_t * vPrs );
// Vec_Ptr_t * vPrs = Prs_ManReadBlif( "aga/ray/ray_hie_oper.blif" );
Vec_Ptr_t * vPrs = Prs_ManReadBlif( "c/hie/dump/1/netlist_1_out8.blif" );
if ( !vPrs ) return;
printf( "Finished reading %d networks. ", Vec_PtrSize(vPrs) );
printf( "NameIDs = %d. ", Abc_NamObjNumMax(Prs_ManNameMan(vPrs)) );
printf( "Memory = %.2f MB. ", 1.0*Prs_ManMemory(vPrs)/(1<<20) );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
// Abc_NamPrint( p->pStrs );
Prs_ManWriteBlif( "c/hie/dump/1/netlist_1_out8_out.blif", vPrs );
Prs_ManVecFree( vPrs );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
|
