/**CFile****************************************************************
FileName [wlcWriteVer.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Verilog parser.]
Synopsis [Writes word-level Verilog.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - August 22, 2014.]
Revision [$Id: wlcWriteVer.c,v 1.00 2014/09/12 00:00:00 alanmi Exp $]
***********************************************************************/
#include "wlc.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_WriteTableOne( FILE * pFile, int nFans, int nOuts, word * pTable, int Id )
{
int m, nMints = (1<<nFans);
// Abc_TtPrintHexArrayRev( stdout, pTable, nMints ); printf( "\n" );
assert( nOuts > 0 && nOuts <= 64 && (64 % nOuts) == 0 );
fprintf( pFile, "module table%d(ind, val);\n", Id );
fprintf( pFile, " input [%d:0] ind;\n", nFans-1 );
fprintf( pFile, " output [%d:0] val;\n", nOuts-1 );
fprintf( pFile, " reg [%d:0] val;\n", nOuts-1 );
fprintf( pFile, " always @(ind)\n" );
fprintf( pFile, " begin\n" );
fprintf( pFile, " case (ind)\n" );
for ( m = 0; m < nMints; m++ )
fprintf( pFile, " %d\'h%x: val = %d\'h%x;\n", nFans, m, nOuts, (unsigned)((pTable[(nOuts * m) >> 6] >> ((nOuts * m) & 63)) & Abc_Tt6Mask(nOuts)) );
fprintf( pFile, " endcase\n" );
fprintf( pFile, " end\n" );
fprintf( pFile, "endmodule\n" );
fprintf( pFile, "\n" );
}
void Wlc_WriteTables( FILE * pFile, Wlc_Ntk_t * p )
{
Vec_Int_t * vNodes;
Wlc_Obj_t * pObj, * pFanin;
word * pTable;
int i;
if ( p->vTables == NULL || Vec_PtrSize(p->vTables) == 0 )
return;
// map tables into their nodes
vNodes = Vec_IntStart( Vec_PtrSize(p->vTables) );
Wlc_NtkForEachObj( p, pObj, i )
if ( pObj->Type == WLC_OBJ_TABLE )
Vec_IntWriteEntry( vNodes, Wlc_ObjTableId(pObj), i );
// write tables
Vec_PtrForEachEntry( word *, p->vTables, pTable, i )
{
pObj = Wlc_NtkObj( p, Vec_IntEntry(vNodes, i) );
assert( pObj->Type == WLC_OBJ_TABLE );
pFanin = Wlc_ObjFanin0( p, pObj );
Wlc_WriteTableOne( pFile, Wlc_ObjRange(pFanin), Wlc_ObjRange(pObj), pTable, i );
}
Vec_IntFree( vNodes );
}
/**Function*************************************************************
Synopsis [This was used to add POs to each node except PIs and MUXes.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_WriteAddPos( Wlc_Ntk_t * p )
{
Wlc_Obj_t * pObj;
int i;
Vec_IntClear( &p->vPos );
Wlc_NtkForEachObj( p, pObj, i )
if ( pObj->Type != WLC_OBJ_PI && pObj->Type != WLC_OBJ_MUX )
{
pObj->fIsPo = 1;
Vec_IntPush( &p->vPos, Wlc_ObjId(p, pObj) );
}
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Wlc_WriteVerIntVec( FILE * pFile, Wlc_Ntk_t * p, Vec_Int_t * vVec, int Start )
{
char * pName;
int LineLength = Start;
int NameCounter = 0;
int AddedLength, i, iObj;
Vec_IntForEachEntry( vVec, iObj, i )
{
pName = Wlc_ObjName( p, iObj );
// get the line length after this name is written
AddedLength = strlen(pName) + 2;
if ( NameCounter && LineLength + AddedLength + 3 > 70 )
{ // write the line extender
fprintf( pFile, "\n " );
// reset the line length
LineLength = Start;
NameCounter = 0;
}
fprintf( pFile, " %s%s", pName, (i==Vec_IntSize(vVec)-1)? "" : "," );
LineLength += AddedLength;
NameCounter++;
}
}
void Wlc_WriteVerInt( FILE * pFile, Wlc_Ntk_t * p, int fNoFlops )
{
Wlc_Obj_t * pObj;
int i, k, iFanin;
char Range[100];
fprintf( pFile, "module %s ( ", p->pName );
fprintf( pFile, "\n " );
if ( Wlc_NtkPiNum(p) > 0 || (fNoFlops && Wlc_NtkCiNum(p)) )
{
Wlc_WriteVerIntVec( pFile, p, fNoFlops ? &p->vCis : &p->vPis, 3 );
fprintf( pFile, ",\n " );
}
if ( Wlc_NtkPoNum(p) > 0 || (fNoFlops && Wlc_NtkCoNum(p)) )
Wlc_WriteVerIntVec( pFile, p, fNoFlops ? &p->vCos : &p->vPos, 3 );
fprintf( pFile, " );\n" );
// mark fanins of rotation shifts
Wlc_NtkForEachObj( p, pObj, i )
if ( pObj->Type == WLC_OBJ_ROTATE_R || pObj->Type == WLC_OBJ_ROTATE_L )
Wlc_ObjFanin1(p, pObj)->Mark = 1;
Wlc_NtkForEachObj( p, pObj, i )
{
int nDigits = Abc_Base10Log(pObj->End+1) + Abc_Base10Log(pObj->Beg+1);
if ( pObj->Mark )
{
pObj->Mark = 0;
continue;
}
sprintf( Range, "%s[%d:%d]%*s", Wlc_ObjIsSigned(pObj) ? "signed ":" ", pObj->End, pObj->Beg, 8-nDigits, "" );
fprintf( pFile, " " );
if ( pObj->Type == WLC_OBJ_PI || (fNoFlops && pObj->Type == WLC_OBJ_FO) )
fprintf( pFile, "input " );
else if ( pObj->fIsPo || (fNoFlops && pObj->fIsFi) )
fprintf( pFile, "output " );
else
fprintf( pFile, " " );
if ( Wlc_ObjIsCi(pObj) || pObj->fIsPo || (fNoFlops && pObj->fIsFi) )
{
fprintf( pFile, "wire %s %s ;\n", Range, Wlc_ObjName(p, i) );
if ( Wlc_ObjIsCi(pObj) )
continue;
Range[0] = 0;
}
if ( pObj->fIsPo || (fNoFlops && pObj->fIsFi) )
fprintf( pFile, " assign " );
else if ( pObj->Type == WLC_OBJ_MUX && Wlc_ObjFaninNum(pObj) > 3 )
fprintf( pFile, "reg %s ", Range );
else
fprintf( pFile, "wire %s ", Range );
if ( pObj->Type == WLC_OBJ_TABLE )
{
// wire [3:0] s4972; table0 s4972_Index(s4971, s4972);
fprintf( pFile, "%s ; table%d", Wlc_ObjName(p, i), Wlc_ObjTableId(pObj) );
fprintf( pFile, " s%d_Index(%s, ", i, Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
fprintf( pFile, "%s)", Wlc_ObjName(p, i) );
}
else if ( pObj->Type == WLC_OBJ_CONST )
{
fprintf( pFile, "%-16s = %d\'%sh", Wlc_ObjName(p, i), Wlc_ObjRange(pObj), Wlc_ObjIsSigned(pObj) ? "s":"" );
Abc_TtPrintHexArrayRev( pFile, (word *)Wlc_ObjConstValue(pObj), (Wlc_ObjRange(pObj) + 3) / 4 );
}
else if ( pObj->Type == WLC_OBJ_ROTATE_R || pObj->Type == WLC_OBJ_ROTATE_L )
{
// wire [27:0] s4960 = (s57 >> 17) | (s57 << 11);
Wlc_Obj_t * pShift = Wlc_ObjFanin1(p, pObj);
int Num0 = *Wlc_ObjConstValue(pShift);
int Num1 = Wlc_ObjRange(pObj) - Num0;
assert( pShift->Type == WLC_OBJ_CONST );
assert( Num0 > 0 && Num0 < Wlc_ObjRange(pObj) );
fprintf( pFile, "%-16s = ", Wlc_ObjName(p, i) );
if ( pObj->Type == WLC_OBJ_ROTATE_R )
fprintf( pFile, "(%s >> %d) | (%s << %d)", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)), Num0, Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)), Num1 );
else
fprintf( pFile, "(%s << %d) | (%s >> %d)", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)), Num0, Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)), Num1 );
}
else if ( pObj->Type == WLC_OBJ_MUX && Wlc_ObjFaninNum(pObj) > 3 )
{
fprintf( pFile, "%s ;\n", Wlc_ObjName(p, i) );
fprintf( pFile, " " );
fprintf( pFile, "always @( " );
Wlc_ObjForEachFanin( pObj, iFanin, k )
fprintf( pFile, "%s%s", k ? " or ":"", Wlc_ObjName(p, Wlc_ObjFaninId(pObj, k)) );
fprintf( pFile, " )\n" );
fprintf( pFile, " " );
fprintf( pFile, "begin\n" );
fprintf( pFile, " " );
fprintf( pFile, "case ( %s )\n", Wlc_ObjName(p, Wlc_ObjFaninId(pObj, 0)) );
Wlc_ObjForEachFanin( pObj, iFanin, k )
{
if ( !k ) continue;
fprintf( pFile, " " );
fprintf( pFile, "%d : %s = ", k-1, Wlc_ObjName(p, i) );
fprintf( pFile, "%s ;\n", Wlc_ObjName(p, Wlc_ObjFaninId(pObj, k)) );
}
fprintf( pFile, " " );
fprintf( pFile, "endcase\n" );
fprintf( pFile, " " );
fprintf( pFile, "end\n" );
continue;
}
else
{
fprintf( pFile, "%-16s = ", Wlc_ObjName(p, i) );
if ( pObj->Type == WLC_OBJ_BUF )
fprintf( pFile, "%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_MUX )
{
fprintf( pFile, "%s ? ", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
fprintf( pFile, "%s : ", Wlc_ObjName(p, Wlc_ObjFaninId2(pObj)) );
fprintf( pFile, "%s", Wlc_ObjName(p, Wlc_ObjFaninId1(pObj)) );
}
else if ( pObj->Type == WLC_OBJ_ARI_MINUS )
fprintf( pFile, "-%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_BIT_NOT )
fprintf( pFile, "~%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_LOGIC_NOT )
fprintf( pFile, "!%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_REDUCT_AND )
fprintf( pFile, "&%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_REDUCT_OR )
fprintf( pFile, "|%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_REDUCT_XOR )
fprintf( pFile, "^%s", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_BIT_SELECT )
fprintf( pFile, "%s [%d:%d]", Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)), Wlc_ObjRangeEnd(pObj), Wlc_ObjRangeBeg(pObj) );
else if ( pObj->Type == WLC_OBJ_BIT_SIGNEXT )
fprintf( pFile, "{ {%d{%s[%d]}}, %s }", Wlc_ObjRange(pObj) - Wlc_ObjRange(Wlc_ObjFanin0(p, pObj)), Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)), Wlc_ObjRange(Wlc_ObjFanin0(p, pObj)) - 1, Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_BIT_ZEROPAD )
fprintf( pFile, "{ {%d{1\'b0}}, %s }", Wlc_ObjRange(pObj) - Wlc_ObjRange(Wlc_ObjFanin0(p, pObj)), Wlc_ObjName(p, Wlc_ObjFaninId0(pObj)) );
else if ( pObj->Type == WLC_OBJ_BIT_CONCAT )
{
fprintf( pFile, "{" );
Wlc_ObjForEachFanin( pObj, iFanin, k )
fprintf( pFile, " %s%s", Wlc_ObjName(p, Wlc_ObjFaninId(pObj, k)), k == Wlc_ObjFaninNum(pObj)-1 ? "":"," );
fprintf( pFile, " }" );
}
else
{
fprintf( pFile, "%s ", Wlc_ObjName(p, Wlc_ObjFaninId(pObj, 0)) );
if ( pObj->Type == WLC_OBJ_SHIFT_R )
fprintf( pFile, ">>" );
else if ( pObj->Type == WLC_OBJ_SHIFT_RA )
fprintf( pFile, ">>>" );
else if ( pObj->Type == WLC_OBJ_SHIFT_L )
fprintf( pFile, "<<" );
else if ( pObj->Type == WLC_OBJ_SHIFT_LA )
fprintf( pFile, "<<<" );
else if ( pObj->Type == WLC_OBJ_BIT_AND )
fprintf( pFile, "&" );
else if ( pObj->Type == WLC_OBJ_BIT_OR )
fprintf( pFile, "|" );
else if ( pObj->Type == WLC_OBJ_BIT_XOR )
fprintf( pFile, "^" );
else if ( pObj->Type == WLC_OBJ_LOGIC_AND )
fprintf( pFile, "&&" );
else if ( pObj->Type == WLC_OBJ_LOGIC_OR )
fprintf( pFile, "||" );
else if ( pObj->Type == WLC_OBJ_COMP_EQU )
fprintf( pFile, "==" );
else if ( pObj->Type == WLC_OBJ_COMP_NOTEQU )
fprintf( pFile, "!=" );
else if ( pObj->Type == WLC_OBJ_COMP_LESS )
fprintf( pFile, "<" );
else if ( pObj->Type == WLC_OBJ_COMP_MORE )
fprintf( pFile, ">" );
else if ( pObj->Type == WLC_OBJ_COMP_LESSEQU )
fprintf( pFile, "<=" );
else if ( pObj->Type == WLC_OBJ_COMP_MOREEQU )
fprintf( pFile, ">=" );
else if ( pObj->Type == WLC_OBJ_ARI_ADD )
fprintf( pFile, "+" );
else if ( pObj->Type == WLC_OBJ_ARI_SUB )
fprintf( pFile, "-" );
else if ( pObj->Type == WLC_OBJ_ARI_MULTI )
fprintf( pFile, "*" );
else if ( pObj->Type == WLC_OBJ_ARI_DIVIDE )
fprintf( pFile, "//" );
else if ( pObj->Type == WLC_OBJ_ARI_MODULUS )
fprintf( pFile, "%%" );
else if ( pObj->Type == WLC_OBJ_ARI_POWER )
fprintf( pFile, "**" );
else if ( pObj->Type == WLC_OBJ_ARI_SQRT )
fprintf( pFile, "@" );
else assert( 0 );
fprintf( pFile, " %s", Wlc_ObjName(p, Wlc_ObjFaninId(pObj, 1)) );
}
}
fprintf( pFile, " ;\n" );
}
iFanin = 0;
assert( !p->vInits || Wlc_NtkFfNum(p) == Vec_IntSize(p->vInits) );
if ( !fNoFlops )
{
if ( p->vInits )
Wlc_NtkForEachCi( p, pObj, i )
{
int nDigits = Abc_Base10Log(pObj->End+1) + 1;
char * pName = Wlc_ObjName(p, Wlc_ObjId(p, pObj));
assert( i == Wlc_ObjCiId(pObj) );
if ( pObj->Type == WLC_OBJ_PI )
continue;
sprintf( Range, " [%d:%d]%*s", Wlc_ObjRange(pObj) - 1, 0, 8-nDigits, "" );
fprintf( pFile, " " );
fprintf( pFile, "wire %s ", Range );
fprintf( pFile, "%s_init%*s = ", pName, 11 - (int)strlen(pName), "" );
if ( Vec_IntEntry(p->vInits, i-Wlc_NtkPiNum(p)) > 0 )
fprintf( pFile, "%s", Wlc_ObjName(p, Wlc_ObjId(p, Wlc_NtkPi(p, Vec_IntEntry(p->vInits, i-Wlc_NtkPiNum(p))))));
else
{
fprintf( pFile, "%d\'b", Wlc_ObjRange(pObj) );
for ( k = Wlc_ObjRange(pObj)-1; k >= 0; k-- )
fprintf( pFile, "%c", p->pInits[iFanin + k] );
}
fprintf( pFile, ";\n" );
iFanin += Wlc_ObjRange(pObj);
}
Wlc_NtkForEachCi( p, pObj, i )
{
assert( i == Wlc_ObjCiId(pObj) );
if ( pObj->Type == WLC_OBJ_PI )
continue;
fprintf( pFile, " " );
fprintf( pFile, "CPL_FF" );
if ( Wlc_ObjRange(pObj) > 1 )
fprintf( pFile, "#%d%*s", Wlc_ObjRange(pObj), 4 - Abc_Base10Log(Wlc_ObjRange(pObj)+1), "" );
else
fprintf( pFile, " " );
fprintf( pFile, " reg%d (", i );
fprintf( pFile, " .q( %s ),", Wlc_ObjName(p, Wlc_ObjId(p, pObj)) );
fprintf( pFile, " .qbar()," );
fprintf( pFile, " .d( %s ),", Wlc_ObjName(p, Wlc_ObjId(p, Wlc_ObjFoToFi(p, pObj))) );
fprintf( pFile, " .clk( %s ),", "1\'b0" );
fprintf( pFile, " .arst( %s ),", "1\'b0" );
if ( p->vInits )
fprintf( pFile, " .arstval( %s_init )", Wlc_ObjName(p, Wlc_ObjId(p, pObj)) );
else
fprintf( pFile, " .arstval( %s )", "1\'b0" );
fprintf( pFile, " ) ;\n" );
}
assert( !p->vInits || iFanin == (int)strlen(p->pInits) );
}
fprintf( pFile, "endmodule\n\n" );
}
void Wlc_WriteVer( Wlc_Ntk_t * p, char * pFileName, int fAddCos, int fNoFlops )
{
FILE * pFile;
pFile = fopen( pFileName, "w" );
if ( pFile == NULL )
{
fprintf( stdout, "Wlc_WriteVer(): Cannot open the output file \"%s\".\n", pFileName );
return;
}
fprintf( pFile, "// Benchmark \"%s\" written by ABC on %s\n", p->pName, Extra_TimeStamp() );
fprintf( pFile, "\n" );
Wlc_WriteTables( pFile, p );
if ( fAddCos )
Wlc_WriteAddPos( p );
Wlc_WriteVerInt( pFile, p, fNoFlops );
fprintf( pFile, "\n" );
fclose( pFile );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END