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abc/src/base/cba/cbaReadBlif.c

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/**CFile****************************************************************
FileName [cbaReadBlif.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Verilog parser.]
Synopsis [Parses several flavors of word-level Verilog.]
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 {
CBA_BLIF_NONE = 0, // 0: unused
CBA_BLIF_MODEL, // 1: .model
CBA_BLIF_INOUTS, // 2: .inouts
CBA_BLIF_INPUTS, // 3: .inputs
CBA_BLIF_OUTPUTS, // 4: .outputs
CBA_BLIF_NAMES, // 5: .names
CBA_BLIF_SUBCKT, // 6: .subckt
CBA_BLIF_GATE, // 7: .gate
CBA_BLIF_LATCH, // 8: .latch
CBA_BLIF_SHORT, // 9: .short
CBA_BLIF_END, // 10: .end
CBA_BLIF_UNKNOWN // 11: unknown
} Cba_BlifType_t;
const char * s_BlifTypes[CBA_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 Cba_PrsAddBlifDirectives( Cba_Prs_t * p )
{
int i;
for ( i = 1; s_BlifTypes[i]; i++ )
Abc_NamStrFindOrAdd( p->pDesign->pNames, (char *)s_BlifTypes[i], NULL );
assert( Abc_NamObjNumMax(p->pDesign->pNames) == i );
Abc_NamStrFindOrAdd( p->pDesign->pFuncs, (char *)" 0\n", NULL ); // default const 0 function
Abc_NamStrFindOrAdd( p->pDesign->pFuncs, (char *)"1 1\n", NULL ); // default buffer function
assert( Abc_NamObjNumMax(p->pDesign->pFuncs) == 3 );
}
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Reading characters.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Cba_CharIsSpace( char c ) { return c == ' ' || c == '\t' || c == '\r'; }
static inline int Cba_CharIsStop( char c ) { return c == '#' || c == '\\' || c == '\n' || c == '='; }
static inline int Cba_CharIsLit( char c ) { return c == '0' || c == '1' || c == '-'; }
static inline int Cba_PrsIsSpace( Cba_Prs_t * p ) { return Cba_CharIsSpace(*p->pCur); }
static inline int Cba_PrsIsStop( Cba_Prs_t * p ) { return Cba_CharIsStop(*p->pCur); }
static inline int Cba_PrsIsLit( Cba_Prs_t * p ) { return Cba_CharIsLit(*p->pCur); }
static inline int Cba_PrsIsChar( Cba_Prs_t * p, char c ) { return *p->pCur == c; }
static inline int Cba_PrsIsChar2( Cba_Prs_t * p, char c ) { return *p->pCur++ == c; }
static inline void Cba_PrsSkip( Cba_Prs_t * p ) { p->pCur++; }
static inline char Cba_PrsSkip2( Cba_Prs_t * p ) { return *p->pCur++; }
/**Function*************************************************************
Synopsis [Reading names.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline void Cba_PrsSkipToChar( Cba_Prs_t * p, char c )
{
while ( !Cba_PrsIsChar(p, c) )
Cba_PrsSkip(p);
}
static inline void Cba_PrsSkipSpaces( Cba_Prs_t * p )
{
while ( 1 )
{
while ( Cba_PrsIsSpace(p) )
Cba_PrsSkip(p);
if ( Cba_PrsIsChar(p, '\\') )
{
Cba_PrsSkipToChar( p, '\n' );
Cba_PrsSkip(p);
continue;
}
if ( Cba_PrsIsChar(p, '#') )
Cba_PrsSkipToChar( p, '\n' );
break;
}
assert( !Cba_PrsIsSpace(p) );
}
static inline int Cba_PrsReadName( Cba_Prs_t * p )
{
char * pStart;
Cba_PrsSkipSpaces( p );
if ( Cba_PrsIsChar(p, '\n') )
return 0;
pStart = p->pCur;
while ( !Cba_PrsIsSpace(p) && !Cba_PrsIsStop(p) )
Cba_PrsSkip(p);
if ( pStart == p->pCur )
return 0;
return Abc_NamStrFindOrAddLim( p->pDesign->pNames, pStart, p->pCur, NULL );
}
static inline int Cba_PrsReadList( Cba_Prs_t * p )
{
int iToken;
Vec_IntClear( &p->vTemp );
while ( (iToken = Cba_PrsReadName(p)) )
Vec_IntPush( &p->vTemp, iToken );
if ( Vec_IntSize(&p->vTemp) == 0 ) return Cba_PrsErrorSet(p, "Signal list is empty.", 1);
return 0;
}
static inline int Cba_PrsReadList2( Cba_Prs_t * p )
{
int iToken;
Vec_IntFill( &p->vTemp, 1, -1 );
while ( (iToken = Cba_PrsReadName(p)) )
Vec_IntPush( &p->vTemp, iToken );
iToken = Vec_IntPop(&p->vTemp);
if ( Vec_IntSize(&p->vTemp) == 0 ) return Cba_PrsErrorSet(p, "Signal list is empty.", 1);
Vec_IntWriteEntry( &p->vTemp, 0, iToken );
return 0;
}
static inline int Cba_PrsReadList3( Cba_Prs_t * p )
{
Vec_IntClear( &p->vTemp );
while ( !Cba_PrsIsChar(p, '\n') )
{
int iToken = Cba_PrsReadName(p);
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read formal name.", 1);
Vec_IntPush( &p->vTemp, iToken );
Cba_PrsSkipSpaces( p );
if ( !Cba_PrsIsChar2(p, '=') ) return Cba_PrsErrorSet(p, "Cannot find symbol \"=\".", 1);
iToken = Cba_PrsReadName(p);
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read actual name.", 1);
Vec_IntPush( &p->vTemp, iToken );
Cba_PrsSkipSpaces( p );
}
if ( Vec_IntSize(&p->vTemp) == 0 ) return Cba_PrsErrorSet(p, "Cannot read a list of formal/actual names.", 1);
if ( Vec_IntSize(&p->vTemp) % 2 ) return Cba_PrsErrorSet(p, "The number of formal/actual names is not even.", 1);
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Cba_PrsReadCube( Cba_Prs_t * p )
{
assert( Cba_PrsIsLit(p) );
while ( Cba_PrsIsLit(p) )
Vec_StrPush( &p->vCover, Cba_PrsSkip2(p) );
Cba_PrsSkipSpaces( p );
if ( Cba_PrsIsChar(p, '\n') )
{
if ( Vec_StrSize(&p->vCover) != 1 ) return Cba_PrsErrorSet(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 ( !Cba_PrsIsLit(p) ) return Cba_PrsErrorSet(p, "Cannot read output literal.", 1);
Vec_StrPush( &p->vCover, ' ' );
Vec_StrPush( &p->vCover, Cba_PrsSkip2(p) );
Vec_StrPush( &p->vCover, '\n' );
Cba_PrsSkipSpaces( p );
if ( !Cba_PrsIsChar(p, '\n') ) return Cba_PrsErrorSet(p, "Cannot read end of cube.", 1);
return 0;
}
static inline void Cba_PrsSaveCover( Cba_Prs_t * p )
{
int iToken;
assert( Vec_StrSize(&p->vCover) > 0 );
Vec_StrPush( &p->vCover, '\0' );
iToken = Abc_NamStrFindOrAdd( p->pDesign->pFuncs, Vec_StrArray(&p->vCover), NULL );
assert( Vec_IntEntryLast(&p->vFuncsCur) == 1 );
Vec_IntWriteEntry( &p->vFuncsCur, Vec_IntSize(&p->vFuncsCur)-1, iToken );
Vec_StrClear( &p->vCover );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Cba_PrsReadInouts( Cba_Prs_t * p )
{
if ( Cba_PrsReadList(p) ) return 1;
Vec_IntAppend( &p->vInoutsCur, &p->vTemp );
return 0;
}
static inline int Cba_PrsReadInputs( Cba_Prs_t * p )
{
if ( Cba_PrsReadList(p) ) return 1;
Vec_IntAppend( &p->vInputsCur, &p->vTemp );
return 0;
}
static inline int Cba_PrsReadOutputs( Cba_Prs_t * p )
{
if ( Cba_PrsReadList(p) ) return 1;
Vec_IntAppend( &p->vOutputsCur, &p->vTemp );
return 0;
}
static inline int Cba_PrsReadNode( Cba_Prs_t * p )
{
if ( Cba_PrsReadList2(p) ) return 1;
// save results
Vec_IntPush( &p->vTypesCur, CBA_PRS_NODE );
Vec_IntPush( &p->vFuncsCur, 1 ); // default const 0 function
Vec_IntPush( &p->vFaninsCur, Cba_PrsSetupDataInt(p, &p->vTemp) );
return 0;
}
static inline int Cba_PrsReadBox( Cba_Prs_t * p, int fGate )
{
int iToken = Cba_PrsReadName(p);
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read model name.", 1);
if ( Cba_PrsReadList3(p) ) return 1;
// save results
Vec_IntPush( &p->vTypesCur, CBA_PRS_BOX );
Vec_IntPush( &p->vFuncsCur, iToken );
Vec_IntPush( &p->vFaninsCur, Cba_PrsSetupDataInt(p, &p->vTemp) );
return 0;
}
static inline int Cba_PrsReadLatch( Cba_Prs_t * p )
{
int iToken = Cba_PrsReadName(p);
Vec_IntFill( &p->vTemp, 2, -1 );
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read latch input.", 1);
Vec_IntWriteEntry( &p->vTemp, 1, iToken );
iToken = Cba_PrsReadName(p);
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read latch output.", 1);
Vec_IntWriteEntry( &p->vTemp, 0, iToken );
Cba_PrsSkipSpaces( p );
if ( Cba_PrsIsChar(p, '0') )
iToken = 0;
else if ( Cba_PrsIsChar(p, '1') )
iToken = 1;
else
iToken = 2;
Cba_PrsSkipToChar( p, '\n' );
// save results
Vec_IntPush( &p->vTypesCur, CBA_PRS_LATCH );
Vec_IntPush( &p->vFuncsCur, iToken );
Vec_IntPush( &p->vFaninsCur, Cba_PrsSetupDataInt(p, &p->vTemp) );
return 0;
}
static inline int Cba_PrsReadShort( Cba_Prs_t * p )
{
int iToken = Cba_PrsReadName(p);
Vec_IntFill( &p->vTemp, 2, -1 );
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read .short input.", 1);
Vec_IntWriteEntry( &p->vTemp, 1, iToken );
iToken = Cba_PrsReadName(p);
if ( iToken == 0 ) return Cba_PrsErrorSet(p, "Cannot read .short output.", 1);
Vec_IntWriteEntry( &p->vTemp, 0, iToken );
Cba_PrsSkipSpaces( p );
if ( !Cba_PrsIsChar(p, '\n') ) return Cba_PrsErrorSet(p, "Trailing symbols on .short line.", 1);
// save results
Vec_IntPush( &p->vTypesCur, CBA_PRS_NODE );
Vec_IntPush( &p->vFuncsCur, 2 ); // default buffer function
Vec_IntPush( &p->vFaninsCur, Cba_PrsSetupDataInt(p, &p->vTemp) );
return 0;
}
static inline int Cba_PrsReadModel( Cba_Prs_t * p )
{
if ( p->iModuleName > 0 ) return Cba_PrsErrorSet(p, "Parsing previous model is unfinished.", 1);
p->iModuleName = Cba_PrsReadName(p);
Cba_PrsSkipSpaces( p );
if ( !Cba_PrsIsChar(p, '\n') ) return Cba_PrsErrorSet(p, "Trailing symbols on .model line.", 1);
return 0;
}
static inline int Cba_PrsReadEnd( Cba_Prs_t * p )
{
if ( p->iModuleName == 0 ) return Cba_PrsErrorSet(p, "Directive .end without .model.", 1);
//printf( "Saving model \"%s\".\n", Abc_NamStr(p->pDesign->pNames, p->iModuleName) );
Cba_PrsAddCurrentModel( p, p->iModuleName );
p->iModuleName = 0;
Cba_PrsSkipSpaces( p );
if ( !Cba_PrsIsChar(p, '\n') ) return Cba_PrsErrorSet(p, "Trailing symbols on .end line.", 1);
return 0;
}
static inline int Cba_PrsReadDirective( Cba_Prs_t * p )
{
int iToken;
if ( !Cba_PrsIsChar(p, '.') )
return Cba_PrsReadCube( p );
if ( Vec_StrSize(&p->vCover) > 0 ) // SOP was specified for the previous node
Cba_PrsSaveCover( p );
iToken = Cba_PrsReadName( p );
if ( iToken == CBA_BLIF_MODEL )
return Cba_PrsReadModel( p );
if ( iToken == CBA_BLIF_INOUTS )
return Cba_PrsReadInouts( p );
if ( iToken == CBA_BLIF_INPUTS )
return Cba_PrsReadInputs( p );
if ( iToken == CBA_BLIF_OUTPUTS )
return Cba_PrsReadOutputs( p );
if ( iToken == CBA_BLIF_NAMES )
return Cba_PrsReadNode( p );
if ( iToken == CBA_BLIF_SUBCKT )
return Cba_PrsReadBox( p, 0 );
if ( iToken == CBA_BLIF_GATE )
return Cba_PrsReadBox( p, 1 );
if ( iToken == CBA_BLIF_LATCH )
return Cba_PrsReadLatch( p );
if ( iToken == CBA_BLIF_SHORT )
return Cba_PrsReadShort( p );
if ( iToken == CBA_BLIF_END )
return Cba_PrsReadEnd( p );
printf( "Cannot read directive \"%s\".\n", Abc_NamStr(p->pDesign->pNames, iToken) );
return 1;
}
static inline int Cba_PrsReadLines( Cba_Prs_t * p )
{
while ( p->pCur[1] != '\0' )
{
assert( Cba_PrsIsChar(p, '\n') );
Cba_PrsSkip(p);
Cba_PrsSkipSpaces( p );
if ( Cba_PrsIsChar(p, '\n') )
continue;
if ( Cba_PrsReadDirective(p) )
return 1;
}
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Cba_Man_t * Cba_PrsReadBlif( char * pFileName )
{
Cba_Man_t * pDesign = NULL;
Cba_Prs_t * p = Cba_PrsAlloc( pFileName );
if ( p == NULL )
return NULL;
Cba_PrsAddBlifDirectives( p );
Cba_PrsReadLines( p );
if ( Cba_PrsErrorPrint(p) )
ABC_SWAP( Cba_Man_t *, pDesign, p->pDesign );
Cba_PrsFree( p );
return pDesign;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cba_PrsReadBlifTest( char * pFileName )
{
abctime clk = Abc_Clock();
extern void Cba_PrsWriteBlif( char * pFileName, Cba_Man_t * pDes );
Cba_Man_t * p = Cba_PrsReadBlif( "aga/ray/ray_hie_oper.blif" );
if ( !p ) return;
printf( "Finished reading %d networks. ", Cba_ManNtkNum(p) );
printf( "NameIDs = %d. ", Abc_NamObjNumMax(p->pNames) );
printf( "Memory = %.2f MB. ", 1.0*Cba_ManMemory(p)/(1<<20) );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
// Abc_NamPrint( p->pDesign->pNames );
Cba_PrsWriteBlif( "aga/ray/ray_hie_oper_out.blif", p );
Cba_ManFree( p );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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