abcBridge-0.14: abc-build/src/base/cba/cbaReadVer.c
/**CFile****************************************************************
FileName [cbaReadVer.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Hierarchical word-level netlist.]
Synopsis [BLIF writer.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - November 29, 2014.]
Revision [$Id: cbaReadVer.c,v 1.00 2014/11/29 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cba.h"
#include "cbaPrs.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
// Verilog keywords
typedef enum {
PRS_VER_NONE = 0, // 0: unused
PRS_VER_MODULE, // 1: module
PRS_VER_INOUT, // 2: inout
PRS_VER_INPUT, // 3: input
PRS_VER_OUTPUT, // 4: output
PRS_VER_WIRE, // 5: wire
PRS_VER_ASSIGN, // 6: assign
PRS_VER_REG, // 7: reg
PRS_VER_ALWAYS, // 8: always
PRS_VER_DEFPARAM, // 9: always
PRS_VER_BEGIN, // 10: begin
PRS_VER_END, // 11: end
PRS_VER_ENDMODULE, // 12: endmodule
PRS_VER_UNKNOWN // 13: unknown
} Cba_VerType_t;
const char * s_VerTypes[PRS_VER_UNKNOWN+1] = {
NULL, // 0: unused
"module", // 1: module
"inout", // 2: inout
"input", // 3: input
"output", // 4: output
"wire", // 5: wire
"assign", // 6: assign
"reg", // 7: reg
"always", // 8: always
"defparam", // 9: defparam
"begin", // 10: begin
"end", // 11: end
"endmodule", // 12: endmodule
NULL // 13: unknown
};
static inline void Prs_NtkAddVerilogDirectives( Prs_Man_t * p )
{
int i;
for ( i = 1; s_VerTypes[i]; i++ )
Abc_NamStrFindOrAdd( p->pStrs, (char *)s_VerTypes[i], NULL );
assert( Abc_NamObjNumMax(p->pStrs) == i );
}
// character recognition
static inline int Prs_CharIsSpace( char c ) { return (c == ' ' || c == '\t' || c == '\r' || c == '\n'); }
static inline int Prs_CharIsDigit( char c ) { return (c >= '0' && c <= '9'); }
static inline int Prs_CharIsDigitB( char c ) { return (c == '0' || c == '1' || c == 'x' || c == 'z'); }
static inline int Prs_CharIsDigitH( char c ) { return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'); }
static inline int Prs_CharIsChar( char c ) { return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); }
static inline int Prs_CharIsSymb1( char c ) { return Prs_CharIsChar(c) || c == '_'; }
static inline int Prs_CharIsSymb2( char c ) { return Prs_CharIsSymb1(c) || Prs_CharIsDigit(c) || c == '$'; }
static inline int Prs_ManIsChar( Prs_Man_t * p, char c ) { return p->pCur[0] == c; }
static inline int Prs_ManIsChar1( Prs_Man_t * p, char c ) { return p->pCur[1] == c; }
static inline int Prs_ManIsDigit( Prs_Man_t * p ) { return Prs_CharIsDigit(*p->pCur); }
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
// collect predefined modules names
const char * s_KnownModules[100] = {
NULL, // CBA_OBJ_NONE = 0, // 0: unused
NULL, // CBA_OBJ_PI, // 1: input
NULL, // CBA_OBJ_PO, // 2: output
NULL, // CBA_OBJ_BI, // 3: box input
NULL, // CBA_OBJ_BO, // 4: box output
NULL, // CBA_OBJ_BOX, // 5: box
"const0", // CBA_BOX_C0,
"const1", // CBA_BOX_C1,
"constX", // CBA_BOX_CX,
"constZ", // CBA_BOX_CZ,
"buf", // CBA_BOX_BUF,
"not", // CBA_BOX_INV,
"and", // CBA_BOX_AND,
"nand", // CBA_BOX_NAND,
"or", // CBA_BOX_OR,
"nor", // CBA_BOX_NOR,
"xor", // CBA_BOX_XOR,
"xnor", // CBA_BOX_XNOR,
"sharp", // CBA_BOX_SHARP,
"mux", // CBA_BOX_MUX,
"maj", // CBA_BOX_MAJ,
"VERIFIC_",
"add_",
"mult_",
"div_",
"mod_",
"rem_",
"shift_left_",
"shift_right_",
"rotate_left_",
"rotate_right_",
"reduce_and_",
"reduce_or_",
"reduce_xor_",
"reduce_nand_",
"reduce_nor_",
"reduce_xnor_",
"LessThan_",
"Mux_",
"Select_",
"Decoder_",
"EnabledDecoder_",
"PrioSelect_",
"DualPortRam_",
"ReadPort_",
"WritePort_",
"ClockedWritePort_",
"lut",
"and_",
"or_",
"xor_",
"nand_",
"nor_",
"xnor_",
"buf_",
"inv_",
"tri_",
"sub_",
"unary_minus_",
"equal_",
"not_equal_",
"mux_",
"wide_mux_",
"wide_select_",
"wide_dff_",
"wide_dlatch_",
"wide_dffrs_",
"wide_dlatchrs_",
"wide_prio_select_",
"pow_",
"PrioEncoder_",
"abs",
NULL
};
// check if it is a known module
static inline int Prs_ManIsKnownModule( Prs_Man_t * p, char * pName )
{
int i;
for ( i = CBA_BOX_C0; s_KnownModules[i]; i++ )
if ( !strncmp(pName, s_KnownModules[i], strlen(s_KnownModules[i])) )
return i;
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
// skips Verilog comments (returns 1 if some comments were skipped)
static inline int Prs_ManUtilSkipComments( Prs_Man_t * p )
{
if ( !Prs_ManIsChar(p, '/') )
return 0;
if ( Prs_ManIsChar1(p, '/') )
{
for ( p->pCur += 2; p->pCur < p->pLimit; p->pCur++ )
if ( Prs_ManIsChar(p, '\n') )
{ p->pCur++; return 1; }
}
else if ( Prs_ManIsChar1(p, '*') )
{
for ( p->pCur += 2; p->pCur < p->pLimit; p->pCur++ )
if ( Prs_ManIsChar(p, '*') && Prs_ManIsChar1(p, '/') )
{ p->pCur++; p->pCur++; return 1; }
}
return 0;
}
static inline int Prs_ManUtilSkipName( Prs_Man_t * p )
{
if ( !Prs_ManIsChar(p, '\\') )
return 0;
for ( p->pCur++; p->pCur < p->pLimit; p->pCur++ )
if ( Prs_ManIsChar(p, ' ') )
{ p->pCur++; return 1; }
return 0;
}
// skip any number of spaces and comments
static inline int Prs_ManUtilSkipSpaces( Prs_Man_t * p )
{
while ( p->pCur < p->pLimit )
{
while ( Prs_CharIsSpace(*p->pCur) )
p->pCur++;
if ( !*p->pCur )
return Prs_ManErrorSet(p, "Unexpectedly reached end-of-file.", 1);
if ( !Prs_ManUtilSkipComments(p) )
return 0;
}
return Prs_ManErrorSet(p, "Unexpectedly reached end-of-file.", 1);
}
// skip everything including comments until the given char
static inline int Prs_ManUtilSkipUntil( Prs_Man_t * p, char c )
{
while ( p->pCur < p->pLimit )
{
if ( Prs_ManIsChar(p, c) )
return 1;
if ( Prs_ManUtilSkipComments(p) )
continue;
if ( Prs_ManUtilSkipName(p) )
continue;
p->pCur++;
}
return 0;
}
// skip everything including comments until the given word
static inline int Prs_ManUtilSkipUntilWord( Prs_Man_t * p, char * pWord )
{
char * pPlace = strstr( p->pCur, pWord );
if ( pPlace == NULL ) return 1;
p->pCur = pPlace + strlen(pWord);
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Prs_ManReadName( Prs_Man_t * p )
{
char * pStart = p->pCur;
if ( Prs_ManIsChar(p, '\\') ) // escaped name
{
pStart = ++p->pCur;
while ( !Prs_ManIsChar(p, ' ') )
p->pCur++;
}
else if ( Prs_CharIsSymb1(*p->pCur) ) // simple name
{
p->pCur++;
while ( Prs_CharIsSymb2(*p->pCur) )
p->pCur++;
}
else
return 0;
return Abc_NamStrFindOrAddLim( p->pStrs, pStart, p->pCur, NULL );
}
static inline int Prs_ManReadNameList( Prs_Man_t * p, Vec_Int_t * vTemp, char LastSymb )
{
Vec_IntClear( vTemp );
while ( 1 )
{
int Item = Prs_ManReadName(p);
if ( Item == 0 ) return Prs_ManErrorSet(p, "Cannot read name in the list.", 0);
Vec_IntPush( vTemp, Item );
if ( Prs_ManIsChar(p, LastSymb) ) break;
if ( !Prs_ManIsChar(p, ',') ) return Prs_ManErrorSet(p, "Expecting comma in the list.", 0);
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
}
return 1;
}
static inline int Prs_ManReadConstant( Prs_Man_t * p )
{
char * pStart = p->pCur;
assert( Prs_ManIsDigit(p) );
while ( Prs_ManIsDigit(p) )
p->pCur++;
if ( !Prs_ManIsChar(p, '\'') ) return Prs_ManErrorSet(p, "Cannot read constant.", 0);
p->pCur++;
if ( Prs_ManIsChar(p, 'b') )
{
p->pCur++;
while ( Prs_CharIsDigitB(*p->pCur) )
p->pCur++;
}
else if ( Prs_ManIsChar(p, 'h') )
{
p->pCur++;
while ( Prs_CharIsDigitH(*p->pCur) )
p->pCur++;
}
else if ( Prs_ManIsChar(p, 'd') )
{
p->pCur++;
while ( Prs_ManIsDigit(p) )
p->pCur++;
}
else return Prs_ManErrorSet(p, "Cannot read radix of constant.", 0);
return Abc_NamStrFindOrAddLim( p->pStrs, pStart, p->pCur, NULL );
}
static inline int Prs_ManReadRange( Prs_Man_t * p )
{
assert( Prs_ManIsChar(p, '[') );
Vec_StrClear( &p->vCover );
Vec_StrPush( &p->vCover, *p->pCur++ );
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( !Prs_ManIsDigit(p) ) return Prs_ManErrorSet(p, "Cannot read digit in range specification.", 0);
while ( Prs_ManIsDigit(p) )
Vec_StrPush( &p->vCover, *p->pCur++ );
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsChar(p, ':') )
{
Vec_StrPush( &p->vCover, *p->pCur++ );
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( !Prs_ManIsDigit(p) ) return Prs_ManErrorSet(p, "Cannot read digit in range specification.", 0);
while ( Prs_ManIsDigit(p) )
Vec_StrPush( &p->vCover, *p->pCur++ );
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
}
if ( !Prs_ManIsChar(p, ']') ) return Prs_ManErrorSet(p, "Cannot read closing brace in range specification.", 0);
Vec_StrPush( &p->vCover, *p->pCur++ );
Vec_StrPush( &p->vCover, '\0' );
return Abc_NamStrFindOrAdd( p->pStrs, Vec_StrArray(&p->vCover), NULL );
}
static inline int Prs_ManReadConcat( Prs_Man_t * p, Vec_Int_t * vTemp2 )
{
extern int Prs_ManReadSignalList( Prs_Man_t * p, Vec_Int_t * vTemp, char LastSymb, int fAddForm );
assert( Prs_ManIsChar(p, '{') );
p->pCur++;
if ( !Prs_ManReadSignalList( p, vTemp2, '}', 0 ) ) return 0;
// check final
assert( Prs_ManIsChar(p, '}') );
p->pCur++;
// return special case
assert( Vec_IntSize(vTemp2) > 0 );
if ( Vec_IntSize(vTemp2) == 1 )
return Vec_IntEntry(vTemp2, 0);
return Abc_Var2Lit2( Prs_NtkAddConcat(p->pNtk, vTemp2), CBA_PRS_CONCAT );
}
static inline int Prs_ManReadSignal( Prs_Man_t * p )
{
int Item;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsDigit(p) )
{
Item = Prs_ManReadConstant(p);
if ( Item == 0 ) return 0;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
return Abc_Var2Lit2( Item, CBA_PRS_CONST );
}
if ( Prs_ManIsChar(p, '{') )
{
if ( p->fUsingTemp2 ) return Prs_ManErrorSet(p, "Cannot read nested concatenations.", 0);
p->fUsingTemp2 = 1;
Item = Prs_ManReadConcat(p, &p->vTemp2);
p->fUsingTemp2 = 0;
if ( Item == 0 ) return 0;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
return Item;
}
else
{
Item = Prs_ManReadName( p );
if ( Item == 0 ) return 0; // was return 1;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsChar(p, '[') )
{
int Range = Prs_ManReadRange(p);
if ( Range == 0 ) return 0;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
return Abc_Var2Lit2( Prs_NtkAddSlice(p->pNtk, Item, Range), CBA_PRS_SLICE );
}
return Abc_Var2Lit2( Item, CBA_PRS_NAME );
}
}
int Prs_ManReadSignalList( Prs_Man_t * p, Vec_Int_t * vTemp, char LastSymb, int fAddForm )
{
Vec_IntClear( vTemp );
while ( 1 )
{
int Item = Prs_ManReadSignal(p);
if ( Item == 0 ) return Prs_ManErrorSet(p, "Cannot read signal in the list.", 0);
if ( fAddForm )
Vec_IntPush( vTemp, 0 );
Vec_IntPush( vTemp, Item );
if ( Prs_ManIsChar(p, LastSymb) ) break;
if ( !Prs_ManIsChar(p, ',') ) return Prs_ManErrorSet(p, "Expecting comma in the list.", 0);
p->pCur++;
}
return 1;
}
static inline int Prs_ManReadSignalList2( Prs_Man_t * p, Vec_Int_t * vTemp )
{
int FormId, ActItem;
Vec_IntClear( vTemp );
assert( Prs_ManIsChar(p, '.') );
while ( Prs_ManIsChar(p, '.') )
{
p->pCur++;
FormId = Prs_ManReadName( p );
if ( FormId == 0 ) return Prs_ManErrorSet(p, "Cannot read formal name of the instance.", 0);
if ( !Prs_ManIsChar(p, '(') ) return Prs_ManErrorSet(p, "Cannot read \"(\" in the instance.", 0);
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
ActItem = Prs_ManReadSignal( p );
if ( ActItem == 0 ) return Prs_ManErrorSet(p, "Cannot read actual name of the instance.", 0);
if ( !Prs_ManIsChar(p, ')') ) return Prs_ManErrorSet(p, "Cannot read \")\" in the instance.", 0);
p->pCur++;
Vec_IntPushTwo( vTemp, FormId, ActItem );
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsChar(p, ')') ) break;
if ( !Prs_ManIsChar(p, ',') ) return Prs_ManErrorSet(p, "Expecting comma in the instance.", 0);
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
}
assert( Vec_IntSize(vTemp) > 0 );
assert( Vec_IntSize(vTemp) % 2 == 0 );
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Prs_ManReadDeclaration( Prs_Man_t * p, int Type )
{
int i, Sig, RangeId = 0;
Vec_Int_t * vSigs[4] = { &p->pNtk->vInouts, &p->pNtk->vInputs, &p->pNtk->vOutputs, &p->pNtk->vWires };
Vec_Int_t * vSigsR[4] = { &p->pNtk->vInoutsR, &p->pNtk->vInputsR, &p->pNtk->vOutputsR, &p->pNtk->vWiresR };
assert( Type >= PRS_VER_INOUT && Type <= PRS_VER_WIRE );
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsChar(p, '[') && !(RangeId = Prs_ManReadRange(p)) ) return 0;
if ( !Prs_ManReadNameList( p, &p->vTemp, ';' ) ) return 0;
Vec_IntForEachEntry( &p->vTemp, Sig, i )
{
Vec_IntPush( vSigs[Type - PRS_VER_INOUT], Sig );
Vec_IntPush( vSigsR[Type - PRS_VER_INOUT], RangeId );
}
return 1;
}
static inline int Prs_ManReadAssign( Prs_Man_t * p )
{
int OutItem, InItem, fCompl = 0, Oper = 0;
// read output name
OutItem = Prs_ManReadSignal( p );
if ( OutItem == 0 ) return Prs_ManErrorSet(p, "Cannot read output in assign-statement.", 0);
if ( !Prs_ManIsChar(p, '=') ) return Prs_ManErrorSet(p, "Expecting \"=\" in assign-statement.", 0);
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsChar(p, '~') )
{
fCompl = 1;
p->pCur++;
}
// read first name
InItem = Prs_ManReadSignal( p );
if ( InItem == 0 ) return Prs_ManErrorSet(p, "Cannot read first input name in the assign-statement.", 0);
Vec_IntClear( &p->vTemp );
Vec_IntPush( &p->vTemp, 0 );
Vec_IntPush( &p->vTemp, InItem );
// check unary operator
if ( Prs_ManIsChar(p, ';') )
{
Vec_IntPush( &p->vTemp, 0 );
Vec_IntPush( &p->vTemp, OutItem );
Oper = fCompl ? CBA_BOX_INV : CBA_BOX_BUF;
Prs_NtkAddBox( p->pNtk, Oper, 0, &p->vTemp );
return 1;
}
if ( Prs_ManIsChar(p, '&') )
Oper = CBA_BOX_AND;
else if ( Prs_ManIsChar(p, '|') )
Oper = CBA_BOX_OR;
else if ( Prs_ManIsChar(p, '^') )
Oper = fCompl ? CBA_BOX_XNOR : CBA_BOX_XOR;
else if ( Prs_ManIsChar(p, '?') )
Oper = CBA_BOX_MUX;
else return Prs_ManErrorSet(p, "Unrecognized operator in the assign-statement.", 0);
p->pCur++;
// read second name
InItem = Prs_ManReadSignal( p );
if ( InItem == 0 ) return Prs_ManErrorSet(p, "Cannot read second input name in the assign-statement.", 0);
Vec_IntPush( &p->vTemp, 0 );
Vec_IntPush( &p->vTemp, InItem );
// read third argument
if ( Oper == CBA_BOX_MUX )
{
assert( fCompl == 0 );
if ( !Prs_ManIsChar(p, ':') ) return Prs_ManErrorSet(p, "Expected colon in the MUX assignment.", 0);
p->pCur++;
// read third name
InItem = Prs_ManReadSignal( p );
if ( InItem == 0 ) return Prs_ManErrorSet(p, "Cannot read third input name in the assign-statement.", 0);
Vec_IntPush( &p->vTemp, 0 );
Vec_IntPush( &p->vTemp, InItem );
if ( !Prs_ManIsChar(p, ';') ) return Prs_ManErrorSet(p, "Expected semicolon at the end of the assign-statement.", 0);
}
// write binary operator
Vec_IntPush( &p->vTemp, 0 );
Vec_IntPush( &p->vTemp, OutItem );
Prs_NtkAddBox( p->pNtk, Oper, 0, &p->vTemp );
return 1;
}
static inline int Prs_ManReadInstance( Prs_Man_t * p, int Func )
{
int InstId, Status;
/*
static Counter = 0;
if ( ++Counter == 7 )
{
int s=0;
}
*/
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( (InstId = Prs_ManReadName(p)) )
if (Prs_ManUtilSkipSpaces(p)) return 0;
if ( !Prs_ManIsChar(p, '(') ) return Prs_ManErrorSet(p, "Expecting \"(\" in module instantiation.", 0);
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( Prs_ManIsChar(p, '.') ) // box
Status = Prs_ManReadSignalList2(p, &p->vTemp);
else // node
{
//char * s = Abc_NamStr(p->pStrs, Func);
// translate elementary gate
int iFuncNew = Prs_ManIsKnownModule(p, Abc_NamStr(p->pStrs, Func));
if ( iFuncNew == 0 ) return Prs_ManErrorSet(p, "Cannot find elementary gate.", 0);
Func = iFuncNew;
Status = Prs_ManReadSignalList( p, &p->vTemp, ')', 1 );
}
if ( Status == 0 ) return 0;
assert( Prs_ManIsChar(p, ')') );
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( !Prs_ManIsChar(p, ';') ) return Prs_ManErrorSet(p, "Expecting semicolon in the instance.", 0);
// add box
Prs_NtkAddBox( p->pNtk, Func, InstId, &p->vTemp );
return 1;
}
static inline int Prs_ManReadArguments( Prs_Man_t * p )
{
int iRange = 0, iType = -1;
Vec_Int_t * vSigs[3] = { &p->pNtk->vInouts, &p->pNtk->vInputs, &p->pNtk->vOutputs };
Vec_Int_t * vSigsR[3] = { &p->pNtk->vInoutsR, &p->pNtk->vInputsR, &p->pNtk->vOutputsR };
assert( Prs_ManIsChar(p, '(') );
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
while ( 1 )
{
int iName = Prs_ManReadName( p );
if ( iName == 0 ) return 0;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
if ( iName >= PRS_VER_INOUT && iName <= PRS_VER_OUTPUT ) // declaration
{
iType = iName;
if ( Prs_ManIsChar(p, '[') )
{
iRange = Prs_ManReadRange(p);
if ( iRange == 0 ) return 0;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
}
}
if ( iType > 0 )
{
Vec_IntPush( vSigs[iType - PRS_VER_INOUT], iName );
Vec_IntPush( vSigsR[iType - PRS_VER_INOUT], iRange );
}
Vec_IntPush( &p->pNtk->vOrder, iName );
if ( Prs_ManIsChar(p, ')') )
break;
if ( !Prs_ManIsChar(p, ',') ) return Prs_ManErrorSet(p, "Expecting comma in the instance.", 0);
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 0;
}
// check final
assert( Prs_ManIsChar(p, ')') );
return 1;
}
// this procedure can return:
// 0 = reached end-of-file; 1 = successfully parsed; 2 = recognized as primitive; 3 = failed and skipped; 4 = error (failed and could not skip)
static inline int Prs_ManReadModule( Prs_Man_t * p )
{
int iToken, Status;
if ( p->pNtk != NULL ) return Prs_ManErrorSet(p, "Parsing previous module is unfinished.", 4);
if ( Prs_ManUtilSkipSpaces(p) )
{
Prs_ManErrorClear( p );
return 0;
}
// read keyword
iToken = Prs_ManReadName( p );
if ( iToken != PRS_VER_MODULE ) return Prs_ManErrorSet(p, "Cannot read \"module\" keyword.", 4);
if ( Prs_ManUtilSkipSpaces(p) ) return 4;
// read module name
iToken = Prs_ManReadName( p );
if ( iToken == 0 ) return Prs_ManErrorSet(p, "Cannot read module name.", 4);
if ( Prs_ManIsKnownModule(p, Abc_NamStr(p->pStrs, iToken)) )
{
if ( Prs_ManUtilSkipUntilWord( p, "endmodule" ) ) return Prs_ManErrorSet(p, "Cannot find \"endmodule\" keyword.", 4);
//printf( "Warning! Skipped known module \"%s\".\n", Abc_NamStr(p->pStrs, iToken) );
Vec_IntPush( &p->vKnown, iToken );
return 2;
}
Prs_ManInitializeNtk( p, iToken, 1 );
// skip arguments
if ( Prs_ManUtilSkipSpaces(p) ) return 4;
if ( !Prs_ManIsChar(p, '(') ) return Prs_ManErrorSet(p, "Cannot find \"(\" in the argument declaration.", 4);
if ( !Prs_ManReadArguments(p) ) return 4;
assert( *p->pCur == ')' );
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 4;
// read declarations and instances
while ( Prs_ManIsChar(p, ';') )
{
p->pCur++;
if ( Prs_ManUtilSkipSpaces(p) ) return 4;
iToken = Prs_ManReadName( p );
if ( iToken == PRS_VER_ENDMODULE )
{
Vec_IntPush( &p->vSucceeded, p->pNtk->iModuleName );
Prs_ManFinalizeNtk( p );
return 1;
}
if ( iToken >= PRS_VER_INOUT && iToken <= PRS_VER_WIRE ) // declaration
Status = Prs_ManReadDeclaration( p, iToken );
else if ( iToken == PRS_VER_REG || iToken == PRS_VER_DEFPARAM ) // unsupported keywords
Status = Prs_ManUtilSkipUntil( p, ';' );
else // read instance
{
if ( iToken == PRS_VER_ASSIGN )
Status = Prs_ManReadAssign( p );
else
Status = Prs_ManReadInstance( p, iToken );
if ( Status == 0 )
{
if ( Prs_ManUtilSkipUntilWord( p, "endmodule" ) ) return Prs_ManErrorSet(p, "Cannot find \"endmodule\" keyword.", 4);
//printf( "Warning! Failed to parse \"%s\". Adding module \"%s\" as blackbox.\n",
// Abc_NamStr(p->pStrs, iToken), Abc_NamStr(p->pStrs, p->pNtk->iModuleName) );
Vec_IntPush( &p->vFailed, p->pNtk->iModuleName );
// cleanup
Vec_IntErase( &p->pNtk->vWires );
Vec_IntErase( &p->pNtk->vWiresR );
Vec_IntErase( &p->pNtk->vSlices );
Vec_IntErase( &p->pNtk->vConcats );
Vec_IntErase( &p->pNtk->vBoxes );
Vec_IntErase( &p->pNtk->vObjs );
p->fUsingTemp2 = 0;
// add
Prs_ManFinalizeNtk( p );
Prs_ManErrorClear( p );
return 3;
}
}
if ( !Status ) return 4;
if ( Prs_ManUtilSkipSpaces(p) ) return 4;
}
return Prs_ManErrorSet(p, "Cannot find \";\" in the module definition.", 4);
}
static inline int Prs_ManReadDesign( Prs_Man_t * p )
{
while ( 1 )
{
int RetValue = Prs_ManReadModule( p );
if ( RetValue == 0 ) // end of file
break;
if ( RetValue == 1 ) // successfully parsed
continue;
if ( RetValue == 2 ) // recognized as primitive
continue;
if ( RetValue == 3 ) // failed and skipped
continue;
if ( RetValue == 4 ) // error
return 0;
assert( 0 );
}
return 1;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Prs_ManPrintModules( Prs_Man_t * p )
{
char * pName; int i;
printf( "Succeeded parsing %d models:\n", Vec_IntSize(&p->vSucceeded) );
Prs_ManForEachNameVec( &p->vSucceeded, p, pName, i )
printf( " %s", pName );
printf( "\n" );
printf( "Skipped %d known models:\n", Vec_IntSize(&p->vKnown) );
Prs_ManForEachNameVec( &p->vKnown, p, pName, i )
printf( " %s", pName );
printf( "\n" );
printf( "Skipped %d failed models:\n", Vec_IntSize(&p->vFailed) );
Prs_ManForEachNameVec( &p->vFailed, p, pName, i )
printf( " %s", pName );
printf( "\n" );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Prs_ManReadVerilog( char * pFileName )
{
Vec_Ptr_t * vPrs = NULL;
Prs_Man_t * p = Prs_ManAlloc( pFileName );
if ( p == NULL )
return NULL;
Prs_NtkAddVerilogDirectives( p );
Prs_ManReadDesign( p );
//Prs_ManPrintModules( p );
if ( Prs_ManErrorPrint(p) )
ABC_SWAP( Vec_Ptr_t *, vPrs, p->vNtks );
Prs_ManFree( p );
return vPrs;
}
void Prs_ManReadVerilogTest( char * pFileName )
{
abctime clk = Abc_Clock();
extern void Prs_ManWriteVerilog( char * pFileName, Vec_Ptr_t * p );
Vec_Ptr_t * vPrs = Prs_ManReadVerilog( "c/hie/dump/1/netlist_1.v" );
// Vec_Ptr_t * vPrs = Prs_ManReadVerilog( "aga/me/me_wide.v" );
// Vec_Ptr_t * vPrs = Prs_ManReadVerilog( "aga/ray/ray_wide.v" );
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 );
Prs_ManWriteVerilog( "c/hie/dump/1/netlist_1_out_new.v", vPrs );
// Prs_ManWriteVerilog( "aga/me/me_wide_out.v", vPrs );
// Prs_ManWriteVerilog( "aga/ray/ray_wide_out.v", vPrs );
// Abc_NamPrint( p->pStrs );
Prs_ManVecFree( vPrs );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END