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Diffstat (limited to 'src/base/io/ioReadDsd.c')
| -rw-r--r-- | src/base/io/ioReadDsd.c | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/src/base/io/ioReadDsd.c b/src/base/io/ioReadDsd.c deleted file mode 100644 index 1ab726e5..00000000 --- a/src/base/io/ioReadDsd.c +++ /dev/null @@ -1,308 +0,0 @@ -/**CFile**************************************************************** - - FileName [ioReadDsd.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [Command processing package.] - - Synopsis [Procedure to read network from file.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: ioReadDsd.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "io.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Finds the end of the part.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -char * Io_ReadDsdFindEnd( char * pCur ) -{ - char * pEnd; - int nParts = 0; - assert( *pCur == '(' ); - for ( pEnd = pCur; *pEnd; pEnd++ ) - { - if ( *pEnd == '(' ) - nParts++; - else if ( *pEnd == ')' ) - nParts--; - if ( nParts == 0 ) - return pEnd; - } - return NULL; -} - -/**Function************************************************************* - - Synopsis [Splits the formula into parts.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Io_ReadDsdStrSplit( char * pCur, char * pParts[], int * pTypeXor ) -{ - int fAnd = 0, fXor = 0, fPri = 0, nParts = 0; - assert( *pCur ); - // process the parts - while ( 1 ) - { - // save the current part - pParts[nParts++] = pCur; - // skip the complement - if ( *pCur == '!' ) - pCur++; - // skip var - if ( *pCur >= 'a' && *pCur <= 'z' ) - pCur++; - else - { - // skip hex truth table - while ( (*pCur >= '0' && *pCur <= '9') || (*pCur >= 'A' && *pCur <= 'F') ) - pCur++; - // process parantheses - if ( *pCur != '(' ) - { - printf( "Cannot find the opening paranthesis.\n" ); - break; - } - // find the corresponding closing paranthesis - pCur = Io_ReadDsdFindEnd( pCur ); - if ( pCur == NULL ) - { - printf( "Cannot find the closing paranthesis.\n" ); - break; - } - pCur++; - } - // check the end - if ( *pCur == 0 ) - break; - // check symbol - if ( *pCur != '*' && *pCur != '+' && *pCur != ',' ) - { - printf( "Wrong separating symbol.\n" ); - break; - } - // remember the symbol - fAnd |= (*pCur == '*'); - fXor |= (*pCur == '+'); - fPri |= (*pCur == ','); - *pCur++ = 0; - } - // check separating symbols - if ( fAnd + fXor + fPri > 1 ) - { - printf( "Different types of separating symbol ennPartsed.\n" ); - return 0; - } - *pTypeXor = fXor; - return nParts; -} - -/**Function************************************************************* - - Synopsis [Recursively parses the formula.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Abc_Obj_t * Io_ReadDsd_rec( Abc_Ntk_t * pNtk, char * pCur, char * pSop ) -{ - Abc_Obj_t * pObj, * pFanin; - char * pEnd, * pParts[32]; - int i, nParts, TypeExor; - - // consider complemented formula - if ( *pCur == '!' ) - { - pObj = Io_ReadDsd_rec( pNtk, pCur + 1, NULL ); - return Abc_NtkCreateNodeInv( pNtk, pObj ); - } - if ( *pCur == '(' ) - { - assert( pCur[strlen(pCur)-1] == ')' ); - pCur[strlen(pCur)-1] = 0; - nParts = Io_ReadDsdStrSplit( pCur+1, pParts, &TypeExor ); - if ( nParts == 0 ) - { - Abc_NtkDelete( pNtk ); - return NULL; - } - pObj = Abc_NtkCreateNode( pNtk ); - if ( pSop ) - { -// for ( i = nParts - 1; i >= 0; i-- ) - for ( i = 0; i < nParts; i++ ) - { - pFanin = Io_ReadDsd_rec( pNtk, pParts[i], NULL ); - if ( pFanin == NULL ) - return NULL; - Abc_ObjAddFanin( pObj, pFanin ); - } - } - else - { - for ( i = 0; i < nParts; i++ ) - { - pFanin = Io_ReadDsd_rec( pNtk, pParts[i], NULL ); - if ( pFanin == NULL ) - return NULL; - Abc_ObjAddFanin( pObj, pFanin ); - } - } - if ( pSop ) - pObj->pData = Abc_SopRegister( pNtk->pManFunc, pSop ); - else if ( TypeExor ) - pObj->pData = Abc_SopCreateXorSpecial( pNtk->pManFunc, nParts ); - else - pObj->pData = Abc_SopCreateAnd( pNtk->pManFunc, nParts, NULL ); - return pObj; - } - if ( *pCur >= 'a' && *pCur <= 'z' ) - { - assert( *(pCur+1) == 0 ); - return Abc_NtkPi( pNtk, *pCur - 'a' ); - } - - // skip hex truth table - pEnd = pCur; - while ( (*pEnd >= '0' && *pEnd <= '9') || (*pEnd >= 'A' && *pEnd <= 'F') ) - pEnd++; - if ( *pEnd != '(' ) - { - printf( "Cannot find the end of hexidecimal truth table.\n" ); - return NULL; - } - - // parse the truth table - *pEnd = 0; - pSop = Abc_SopFromTruthHex( pCur ); - *pEnd = '('; - pObj = Io_ReadDsd_rec( pNtk, pEnd, pSop ); - free( pSop ); - return pObj; -} - -/**Function************************************************************* - - Synopsis [Derives the DSD network of the formula.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Abc_Ntk_t * Io_ReadDsd( char * pForm ) -{ - Abc_Ntk_t * pNtk; - Abc_Obj_t * pObj, * pTop; - Vec_Ptr_t * vNames; - char * pCur, * pFormCopy; - int i, nInputs; - - // count the number of elementary variables - nInputs = 0; - for ( pCur = pForm; *pCur; pCur++ ) - if ( *pCur >= 'a' && *pCur <= 'z' ) - nInputs = ABC_MAX( nInputs, *pCur - 'a' ); - nInputs++; - - // create the network - pNtk = Abc_NtkAlloc( ABC_NTK_LOGIC, ABC_FUNC_SOP, 1 ); - pNtk->pName = Extra_UtilStrsav( "dsd" ); - - // create PIs - vNames = Abc_NodeGetFakeNames( nInputs ); - for ( i = 0; i < nInputs; i++ ) - Abc_ObjAssignName( Abc_NtkCreatePi(pNtk), Vec_PtrEntry(vNames, i), NULL ); - Abc_NodeFreeNames( vNames ); - - // transform the formula by inserting parantheses - // this transforms strings like PRIME(a,b,cd) into (PRIME((a),(b),(cd))) - pCur = pFormCopy = ALLOC( char, 3 * strlen(pForm) + 10 ); - *pCur++ = '('; - for ( ; *pForm; pForm++ ) - if ( *pForm == '(' ) - { - *pCur++ = '('; - *pCur++ = '('; - } - else if ( *pForm == ')' ) - { - *pCur++ = ')'; - *pCur++ = ')'; - } - else if ( *pForm == ',' ) - { - *pCur++ = ')'; - *pCur++ = ','; - *pCur++ = '('; - } - else - *pCur++ = *pForm; - *pCur++ = ')'; - *pCur = 0; - - // parse the formula - pObj = Io_ReadDsd_rec( pNtk, pFormCopy, NULL ); - free( pFormCopy ); - if ( pObj == NULL ) - return NULL; - - // create output - pTop = Abc_NtkCreatePo(pNtk); - Abc_ObjAssignName( pTop, "F", NULL ); - Abc_ObjAddFanin( pTop, pObj ); - - // create the only PO - if ( !Abc_NtkCheck( pNtk ) ) - { - fprintf( stdout, "Io_ReadDsd(): Network check has failed.\n" ); - Abc_NtkDelete( pNtk ); - return NULL; - } - return pNtk; -} - - - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - - |