diff options
Diffstat (limited to 'abc70930/src/map/mapper/mapperSuper.c')
| -rw-r--r-- | abc70930/src/map/mapper/mapperSuper.c | 449 |
1 files changed, 449 insertions, 0 deletions
diff --git a/abc70930/src/map/mapper/mapperSuper.c b/abc70930/src/map/mapper/mapperSuper.c new file mode 100644 index 00000000..ce6a780f --- /dev/null +++ b/abc70930/src/map/mapper/mapperSuper.c @@ -0,0 +1,449 @@ +/**CFile**************************************************************** + + FileName [mapperSuper.c] + + PackageName [MVSIS 1.3: Multi-valued logic synthesis system.] + + Synopsis [Generic technology mapping engine.] + + Author [MVSIS Group] + + Affiliation [UC Berkeley] + + Date [Ver. 2.0. Started - June 1, 2004.] + + Revision [$Id: mapperSuper.c,v 1.6 2005/01/23 06:59:44 alanmi Exp $] + +***********************************************************************/ + +#include "mapperInt.h" + +//////////////////////////////////////////////////////////////////////// +/// DECLARATIONS /// +//////////////////////////////////////////////////////////////////////// + +static int Map_LibraryReadFile( Map_SuperLib_t * pLib, FILE * pFile ); +static Map_Super_t * Map_LibraryReadGate( Map_SuperLib_t * pLib, char * pBuffer, int nVars ); +static int Map_LibraryTruthVerify( Map_SuperLib_t * pLib, Map_Super_t * pGate ); +static void Map_LibraryComputeTruth( Map_SuperLib_t * pLib, char * pFormula, unsigned uTruthRes[] ); +static void Map_LibraryComputeTruth_rec( Map_SuperLib_t * pLib, char * pFormula, unsigned uTruthsIn[][2], unsigned uTruthRes[] ); +static void Map_LibraryPrintClasses( Map_SuperLib_t * p ); + +//////////////////////////////////////////////////////////////////////// +/// FUNCTION DEFINITIONS /// +//////////////////////////////////////////////////////////////////////// + +/**Function************************************************************* + + Synopsis [Reads the supergate library from file.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Map_LibraryRead( Map_SuperLib_t * pLib, char * pFileName ) +{ + FILE * pFile; + int Status; + // read the beginning of the file + assert( pLib->pGenlib == NULL ); + pFile = fopen( pFileName, "r" ); + if ( pFile == NULL ) + { + printf( "Cannot open input file \"%s\".\n", pFileName ); + return 0; + } + Status = Map_LibraryReadFile( pLib, pFile ); + fclose( pFile ); +// Map_LibraryPrintClasses( pLib ); + return Status; +} + + +/**Function************************************************************* + + Synopsis [Reads the library file.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Map_LibraryReadFile( Map_SuperLib_t * pLib, FILE * pFile ) +{ + ProgressBar * pProgress; + char pBuffer[2000]; + FILE * pFileGen; + Map_Super_t * pGate; + char * pTemp, * pLibName; + int nCounter, nGatesTotal; + unsigned uCanon[2]; + + // skip empty and comment lines + while ( fgets( pBuffer, 5000, pFile ) != NULL ) + { + // skip leading spaces + for ( pTemp = pBuffer; *pTemp == ' ' || *pTemp == '\r' || *pTemp == '\n'; pTemp++ ); + // skip comment lines and empty lines + if ( *pTemp != 0 && *pTemp != '#' ) + break; + } + + // get the genlib file name + pLibName = strtok( pTemp, " \t\r\n" ); + if ( strcmp( pLibName, "GATE" ) == 0 ) + { + printf( "The input file \"%s\" looks like a GENLIB file and not a supergate library file.\n", pLib->pName ); + return 0; + } + pFileGen = fopen( pLibName, "r" ); + if ( pFileGen == NULL ) + { + printf( "Cannot open the GENLIB file \"%s\".\n", pLibName ); + return 0; + } + fclose( pFileGen ); + + // read the genlib library + pLib->pGenlib = Mio_LibraryRead( Abc_FrameGetGlobalFrame(), pLibName, 0, 0 ); + if ( pLib->pGenlib == NULL ) + { + printf( "Cannot read GENLIB file \"%s\".\n", pLibName ); + return 0; + } + + // read the number of variables + fscanf( pFile, "%d\n", &pLib->nVarsMax ); + if ( pLib->nVarsMax < 2 || pLib->nVarsMax > 10 ) + { + printf( "Suspicious number of variables (%d).\n", pLib->nVarsMax ); + return 0; + } + + // read the number of gates + fscanf( pFile, "%d\n", &nGatesTotal ); + if ( nGatesTotal < 1 || nGatesTotal > 10000000 ) + { + printf( "Suspicious number of gates (%d).\n", nGatesTotal ); + return 0; + } + + // read the lines + nCounter = 0; + pProgress = Extra_ProgressBarStart( stdout, nGatesTotal ); + while ( fgets( pBuffer, 5000, pFile ) != NULL ) + { + for ( pTemp = pBuffer; *pTemp == ' ' || *pTemp == '\r' || *pTemp == '\n'; pTemp++ ); + if ( pTemp[0] == '\0' ) + continue; + // get the gate + pGate = Map_LibraryReadGate( pLib, pTemp, pLib->nVarsMax ); + assert( pGate->Num == nCounter + 1 ); + // count the number of parantheses in the formula - this is the number of gates + for ( pTemp = pGate->pFormula; *pTemp; pTemp++ ) + pGate->nGates += (*pTemp == '('); + // verify the truth table + assert( Map_LibraryTruthVerify(pLib, pGate) ); + + // find the N-canonical form of this supergate + pGate->nPhases = Map_CanonComputeSlow( pLib->uTruths, pLib->nVarsMax, pLib->nVarsMax, pGate->uTruth, pGate->uPhases, uCanon ); + // add the supergate into the table by its N-canonical table + Map_SuperTableInsertC( pLib->tTableC, uCanon, pGate ); + // update the progress bar + Extra_ProgressBarUpdate( pProgress, ++nCounter, NULL ); + } + Extra_ProgressBarStop( pProgress ); + pLib->nSupersAll = nCounter; + if ( nCounter != nGatesTotal ) + printf( "The number of gates read (%d) is different what the file says (%d).\n", nGatesTotal, nCounter ); + return 1; +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Map_Super_t * Map_LibraryReadGate( Map_SuperLib_t * pLib, char * pBuffer, int nVars ) +{ + Map_Super_t * pGate; + char * pTemp; + int i; + + // start and clean the gate + pGate = (Map_Super_t *)Extra_MmFixedEntryFetch( pLib->mmSupers ); + memset( pGate, 0, sizeof(Map_Super_t) ); + + // read the number + pTemp = strtok( pBuffer, " " ); + pGate->Num = atoi(pTemp); + + // read the signature + pTemp = strtok( NULL, " " ); + if ( pLib->nVarsMax < 6 ) + { + pGate->uTruth[0] = Extra_ReadBinary(pTemp); + pGate->uTruth[1] = 0; + } + else + { + pGate->uTruth[0] = Extra_ReadBinary(pTemp+32); + pTemp[32] = 0; + pGate->uTruth[1] = Extra_ReadBinary(pTemp); + } + + // read the max delay + pTemp = strtok( NULL, " " ); + pGate->tDelayMax.Rise = (float)atof(pTemp); + pGate->tDelayMax.Fall = pGate->tDelayMax.Rise; + + // read the pin-to-pin delay + for ( i = 0; i < nVars; i++ ) + { + pTemp = strtok( NULL, " " ); + pGate->tDelaysR[i].Rise = (float)atof(pTemp); + pGate->tDelaysF[i].Fall = pGate->tDelaysR[i].Rise; + } + + // read the area + pTemp = strtok( NULL, " " ); + pGate->Area = (float)atof(pTemp); + + // the rest is the gate name + pTemp = strtok( NULL, " \r\n" ); + if ( strlen(pTemp) == 0 ) + printf( "A gate name is empty.\n" ); + + // save the gate name + pGate->pFormula = Extra_MmFlexEntryFetch( pLib->mmForms, strlen(pTemp) + 1 ); + strcpy( pGate->pFormula, pTemp ); + + // the rest is the gate name + pTemp = strtok( NULL, " \n\0" ); + if ( pTemp != NULL ) + printf( "The following trailing symbols found \"%s\".\n", pTemp ); + return pGate; +} + +/**Function************************************************************* + + Synopsis [Performs one step of parsing the formula into parts.] + + Description [This function will eventually be replaced when the + tree-supergate library representation will become standard.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +char * Map_LibraryReadFormulaStep( char * pFormula, char * pStrings[], int * pnStrings ) +{ + char * pName, * pPar1, * pPar2, * pCur; + int nStrings, CountPars; + + // skip leading spaces + for ( pName = pFormula; *pName && *pName == ' '; pName++ ); + assert( *pName ); + // find the first opening paranthesis + for ( pPar1 = pName; *pPar1 && *pPar1 != '('; pPar1++ ); + if ( *pPar1 == 0 ) + { + *pnStrings = 0; + return pName; + } + // overwrite it with space + assert( *pPar1 == '(' ); + *pPar1 = 0; + // find the corresponding closing paranthesis + for ( CountPars = 1, pPar2 = pPar1 + 1; *pPar2 && CountPars; pPar2++ ) + if ( *pPar2 == '(' ) + CountPars++; + else if ( *pPar2 == ')' ) + CountPars--; + pPar2--; + assert( CountPars == 0 ); + // overwrite it with space + assert( *pPar2 == ')' ); + *pPar2 = 0; + // save the intervals between the commas + nStrings = 0; + pCur = pPar1 + 1; + while ( 1 ) + { + // save the current string + pStrings[ nStrings++ ] = pCur; + // find the beginning of the next string + for ( CountPars = 0; *pCur && (CountPars || *pCur != ','); pCur++ ) + if ( *pCur == '(' ) + CountPars++; + else if ( *pCur == ')' ) + CountPars--; + if ( *pCur == 0 ) + break; + assert( *pCur == ',' ); + *pCur = 0; + pCur++; + } + // save the results and return + *pnStrings = nStrings; + return pName; +} + + +/**Function************************************************************* + + Synopsis [Verifies the truth table of the supergate.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Map_LibraryTruthVerify( Map_SuperLib_t * pLib, Map_Super_t * pGate ) +{ + unsigned uTruthRes[2]; + Map_LibraryComputeTruth( pLib, pGate->pFormula, uTruthRes ); + if ( uTruthRes[0] != pGate->uTruth[0] || uTruthRes[1] != pGate->uTruth[1] ) + return 0; + return 1; +} + + +/**Function************************************************************* + + Synopsis [Derives the functionality of the supergate.] + + Description [This procedure is useful for verification the supergate + library. The truth table derived by this procedure should be the same + as the one contained in the original supergate file.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Map_LibraryComputeTruth( Map_SuperLib_t * pLib, char * pFormula, unsigned uTruthRes[] ) +{ + char Buffer[1000]; + strcpy( Buffer, pFormula ); + Map_LibraryComputeTruth_rec( pLib, Buffer, pLib->uTruths, uTruthRes ); +} + +/**Function************************************************************* + + Synopsis [Derives the functionality of the supergate.] + + Description [This procedure is useful for verification the supergate + library. The truth table derived by this procedure should be the same + as the one contained in the original supergate file.] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Map_LibraryComputeTruth_rec( Map_SuperLib_t * pLib, char * pFormula, unsigned uTruthsIn[][2], unsigned uTruthRes[] ) +{ + Mio_Gate_t * pMioGate; + char * pGateName, * pStrings[6]; + unsigned uTruthsFanins[6][2]; + int nStrings, i; + + // perform one step parsing of the formula + // detect the root gate name, the next-step strings, and their number + pGateName = Map_LibraryReadFormulaStep( pFormula, pStrings, &nStrings ); + if ( nStrings == 0 ) // elementary variable + { + assert( pGateName[0] - 'a' < pLib->nVarsMax ); + uTruthRes[0] = uTruthsIn[pGateName[0] - 'a'][0]; + uTruthRes[1] = uTruthsIn[pGateName[0] - 'a'][1]; + return; + } + // derive the functionality of the fanins + for ( i = 0; i < nStrings; i++ ) + Map_LibraryComputeTruth_rec( pLib, pStrings[i], uTruthsIn, uTruthsFanins[i] ); + // get the root supergate + pMioGate = Mio_LibraryReadGateByName( pLib->pGenlib, pGateName ); + if ( pMioGate == NULL ) + printf( "A supergate contains gate \"%s\" that is not in \"%s\".\n", pGateName, Mio_LibraryReadName(pLib->pGenlib) ); + // derive the functionality of the output of the supergate + Mio_DeriveTruthTable( pMioGate, uTruthsFanins, nStrings, pLib->nVarsMax, uTruthRes ); +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Map_LibraryPrintSupergate( Map_Super_t * pGate ) +{ + printf( "%5d : ", pGate->nUsed ); + printf( "%5d ", pGate->Num ); + printf( "A = %5.2f ", pGate->Area ); + printf( "D = %5.2f ", pGate->tDelayMax ); + printf( "%s", pGate->pFormula ); + printf( "\n" ); +} + + +/**Function************************************************************* + + Synopsis [Prints N-classes of supergates.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Map_LibraryPrintClasses( Map_SuperLib_t * p ) +{ +/* + st_generator * gen; + Map_Super_t * pSuper, * pSuper2; + unsigned Key, uTruth; + int Counter = 0; + // copy all the supergates into one array + st_foreach_item( p->tSuplib, gen, (char **)&Key, (char **)&pSuper ) + { + for ( pSuper2 = pSuper; pSuper2; pSuper2 = pSuper2->pNext ) + { + uTruth = pSuper2->Phase; + Extra_PrintBinary( stdout, &uTruth, 5 ); + printf( " %5d ", pSuper2->Num ); + printf( "%s", pSuper2->pFormula ); + printf( "\n" ); + } + printf( "\n" ); + if ( ++ Counter == 100 ) + break; + } +*/ +} + +//////////////////////////////////////////////////////////////////////// +/// END OF FILE /// +//////////////////////////////////////////////////////////////////////// + + |