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Diffstat (limited to 'src/opt/fxu/fxuPair.c')
-rw-r--r-- | src/opt/fxu/fxuPair.c | 555 |
1 files changed, 0 insertions, 555 deletions
diff --git a/src/opt/fxu/fxuPair.c b/src/opt/fxu/fxuPair.c deleted file mode 100644 index 3c031ce8..00000000 --- a/src/opt/fxu/fxuPair.c +++ /dev/null @@ -1,555 +0,0 @@ -/**CFile**************************************************************** - - FileName [fxuPair.c] - - PackageName [MVSIS 2.0: Multi-valued logic synthesis system.] - - Synopsis [Operations on cube pairs.] - - Author [MVSIS Group] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - February 1, 2003.] - - Revision [$Id: fxuPair.c,v 1.0 2003/02/01 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "fxuInt.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -#define MAX_PRIMES 304 - -static s_Primes[MAX_PRIMES] = -{ - 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, - 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, - 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, - 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, - 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, - 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, - 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, - 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499, 503, - 509, 521, 523, 541, 547, 557, 563, 569, 571, 577, 587, 593, - 599, 601, 607, 613, 617, 619, 631, 641, 643, 647, 653, 659, - 661, 673, 677, 683, 691, 701, 709, 719, 727, 733, 739, 743, - 751, 757, 761, 769, 773, 787, 797, 809, 811, 821, 823, 827, - 829, 839, 853, 857, 859, 863, 877, 881, 883, 887, 907, 911, - 919, 929, 937, 941, 947, 953, 967, 971, 977, 983, 991, 997, - 1009, 1013, 1019, 1021, 1031, 1033, 1039, 1049, 1051, 1061, 1063, 1069, - 1087, 1091, 1093, 1097, 1103, 1109, 1117, 1123, 1129, 1151, 1153, 1163, - 1171, 1181, 1187, 1193, 1201, 1213, 1217, 1223, 1229, 1231, 1237, 1249, - 1259, 1277, 1279, 1283, 1289, 1291, 1297, 1301, 1303, 1307, 1319, 1321, - 1327, 1361, 1367, 1373, 1381, 1399, 1409, 1423, 1427, 1429, 1433, 1439, - 1447, 1451, 1453, 1459, 1471, 1481, 1483, 1487, 1489, 1493, 1499, 1511, - 1523, 1531, 1543, 1549, 1553, 1559, 1567, 1571, 1579, 1583, 1597, 1601, - 1607, 1609, 1613, 1619, 1621, 1627, 1637, 1657, 1663, 1667, 1669, 1693, - 1697, 1699, 1709, 1721, 1723, 1733, 1741, 1747, 1753, 1759, 1777, 1783, - 1787, 1789, 1801, 1811, 1823, 1831, 1847, 1861, 1867, 1871, 1873, 1877, - 1879, 1889, 1901, 1907, 1913, 1931, 1933, 1949, 1951, 1973, 1979, 1987, - 1993, 1997, 1999, 2003 -}; - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Find the canonical permutation of two cubes in the pair.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fxu_PairCanonicize( Fxu_Cube ** ppCube1, Fxu_Cube ** ppCube2 ) -{ - Fxu_Lit * pLit1, * pLit2; - Fxu_Cube * pCubeTemp; - - // walk through the cubes to determine - // the one that has higher first variable - pLit1 = (*ppCube1)->lLits.pHead; - pLit2 = (*ppCube2)->lLits.pHead; - while ( 1 ) - { - if ( pLit1->iVar == pLit2->iVar ) - { - pLit1 = pLit1->pHNext; - pLit2 = pLit2->pHNext; - continue; - } - assert( pLit1 && pLit2 ); // this is true if the covers are SCC-free - if ( pLit1->iVar > pLit2->iVar ) - { // swap the cubes - pCubeTemp = *ppCube1; - *ppCube1 = *ppCube2; - *ppCube2 = pCubeTemp; - } - break; - } -} - -/**Function************************************************************* - - Synopsis [Find the canonical permutation of two cubes in the pair.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fxu_PairCanonicize2( Fxu_Cube ** ppCube1, Fxu_Cube ** ppCube2 ) -{ - Fxu_Cube * pCubeTemp; - // canonicize the pair by ordering the cubes - if ( (*ppCube1)->iCube > (*ppCube2)->iCube ) - { // swap the cubes - pCubeTemp = *ppCube1; - *ppCube1 = *ppCube2; - *ppCube2 = pCubeTemp; - } -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -unsigned Fxu_PairHashKeyArray( Fxu_Matrix * p, int piVarsC1[], int piVarsC2[], int nVarsC1, int nVarsC2 ) -{ - int Offset1 = 100, Offset2 = 200, i; - unsigned Key; - // compute the hash key - Key = 0; - for ( i = 0; i < nVarsC1; i++ ) - Key ^= s_Primes[Offset1+i] * piVarsC1[i]; - for ( i = 0; i < nVarsC2; i++ ) - Key ^= s_Primes[Offset2+i] * piVarsC2[i]; - return Key; -} - -/**Function************************************************************* - - Synopsis [Computes the hash key of the divisor represented by the pair of cubes.] - - Description [Goes through the variables in both cubes. Skips the identical - ones (this corresponds to making the cubes cube-free). Computes the hash - value of the cubes. Assigns the number of literals in the base and in the - cubes without base.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -unsigned Fxu_PairHashKey( Fxu_Matrix * p, Fxu_Cube * pCube1, Fxu_Cube * pCube2, - int * pnBase, int * pnLits1, int * pnLits2 ) -{ - int Offset1 = 100, Offset2 = 200; - int nBase, nLits1, nLits2; - Fxu_Lit * pLit1, * pLit2; - unsigned Key; - - // compute the hash key - Key = 0; - nLits1 = 0; - nLits2 = 0; - nBase = 0; - pLit1 = pCube1->lLits.pHead; - pLit2 = pCube2->lLits.pHead; - while ( 1 ) - { - if ( pLit1 && pLit2 ) - { - if ( pLit1->iVar == pLit2->iVar ) - { // ensure cube-free - pLit1 = pLit1->pHNext; - pLit2 = pLit2->pHNext; - // add this literal to the base - nBase++; - } - else if ( pLit1->iVar < pLit2->iVar ) - { - Key ^= s_Primes[Offset1+nLits1] * pLit1->iVar; - pLit1 = pLit1->pHNext; - nLits1++; - } - else - { - Key ^= s_Primes[Offset2+nLits2] * pLit2->iVar; - pLit2 = pLit2->pHNext; - nLits2++; - } - } - else if ( pLit1 && !pLit2 ) - { - Key ^= s_Primes[Offset1+nLits1] * pLit1->iVar; - pLit1 = pLit1->pHNext; - nLits1++; - } - else if ( !pLit1 && pLit2 ) - { - Key ^= s_Primes[Offset2+nLits2] * pLit2->iVar; - pLit2 = pLit2->pHNext; - nLits2++; - } - else - break; - } - *pnBase = nBase; - *pnLits1 = nLits1; - *pnLits2 = nLits2; - return Key; -} - -/**Function************************************************************* - - Synopsis [Compares the two pairs.] - - Description [Returns 1 if the divisors represented by these pairs - are equal.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Fxu_PairCompare( Fxu_Pair * pPair1, Fxu_Pair * pPair2 ) -{ - Fxu_Lit * pD1C1, * pD1C2; - Fxu_Lit * pD2C1, * pD2C2; - int TopVar1, TopVar2; - int Code; - - if ( pPair1->nLits1 != pPair2->nLits1 ) - return 0; - if ( pPair1->nLits2 != pPair2->nLits2 ) - return 0; - - pD1C1 = pPair1->pCube1->lLits.pHead; - pD1C2 = pPair1->pCube2->lLits.pHead; - - pD2C1 = pPair2->pCube1->lLits.pHead; - pD2C2 = pPair2->pCube2->lLits.pHead; - - Code = pD1C1? 8: 0; - Code |= pD1C2? 4: 0; - Code |= pD2C1? 2: 0; - Code |= pD2C2? 1: 0; - assert( Code == 15 ); - - while ( 1 ) - { - switch ( Code ) - { - case 0: // -- -- NULL NULL NULL NULL - return 1; - case 1: // -- -1 NULL NULL NULL pD2C2 - return 0; - case 2: // -- 1- NULL NULL pD2C1 NULL - return 0; - case 3: // -- 11 NULL NULL pD2C1 pD2C2 - if ( pD2C1->iVar != pD2C2->iVar ) - return 0; - pD2C1 = pD2C1->pHNext; - pD2C2 = pD2C2->pHNext; - break; - case 4: // -1 -- NULL pD1C2 NULL NULL - return 0; - case 5: // -1 -1 NULL pD1C2 NULL pD2C2 - if ( pD1C2->iVar != pD2C2->iVar ) - return 0; - pD1C2 = pD1C2->pHNext; - pD2C2 = pD2C2->pHNext; - break; - case 6: // -1 1- NULL pD1C2 pD2C1 NULL - return 0; - case 7: // -1 11 NULL pD1C2 pD2C1 pD2C2 - TopVar2 = Fxu_Min( pD2C1->iVar, pD2C2->iVar ); - if ( TopVar2 == pD1C2->iVar ) - { - if ( pD2C1->iVar <= pD2C2->iVar ) - return 0; - pD1C2 = pD1C2->pHNext; - pD2C2 = pD2C2->pHNext; - } - else if ( TopVar2 < pD1C2->iVar ) - { - if ( pD2C1->iVar != pD2C2->iVar ) - return 0; - pD2C1 = pD2C1->pHNext; - pD2C2 = pD2C2->pHNext; - } - else - return 0; - break; - case 8: // 1- -- pD1C1 NULL NULL NULL - return 0; - case 9: // 1- -1 pD1C1 NULL NULL pD2C2 - return 0; - case 10: // 1- 1- pD1C1 NULL pD2C1 NULL - if ( pD1C1->iVar != pD2C1->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD2C1 = pD2C1->pHNext; - break; - case 11: // 1- 11 pD1C1 NULL pD2C1 pD2C2 - TopVar2 = Fxu_Min( pD2C1->iVar, pD2C2->iVar ); - if ( TopVar2 == pD1C1->iVar ) - { - if ( pD2C1->iVar >= pD2C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD2C1 = pD2C1->pHNext; - } - else if ( TopVar2 < pD1C1->iVar ) - { - if ( pD2C1->iVar != pD2C2->iVar ) - return 0; - pD2C1 = pD2C1->pHNext; - pD2C2 = pD2C2->pHNext; - } - else - return 0; - break; - case 12: // 11 -- pD1C1 pD1C2 NULL NULL - if ( pD1C1->iVar != pD1C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD1C2 = pD1C2->pHNext; - break; - case 13: // 11 -1 pD1C1 pD1C2 NULL pD2C2 - TopVar1 = Fxu_Min( pD1C1->iVar, pD1C2->iVar ); - if ( TopVar1 == pD2C2->iVar ) - { - if ( pD1C1->iVar <= pD1C2->iVar ) - return 0; - pD1C2 = pD1C2->pHNext; - pD2C2 = pD2C2->pHNext; - } - else if ( TopVar1 < pD2C2->iVar ) - { - if ( pD1C1->iVar != pD1C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD1C2 = pD1C2->pHNext; - } - else - return 0; - break; - case 14: // 11 1- pD1C1 pD1C2 pD2C1 NULL - TopVar1 = Fxu_Min( pD1C1->iVar, pD1C2->iVar ); - if ( TopVar1 == pD2C1->iVar ) - { - if ( pD1C1->iVar >= pD1C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD2C1 = pD2C1->pHNext; - } - else if ( TopVar1 < pD2C1->iVar ) - { - if ( pD1C1->iVar != pD1C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD1C2 = pD1C2->pHNext; - } - else - return 0; - break; - case 15: // 11 11 pD1C1 pD1C2 pD2C1 pD2C2 - TopVar1 = Fxu_Min( pD1C1->iVar, pD1C2->iVar ); - TopVar2 = Fxu_Min( pD2C1->iVar, pD2C2->iVar ); - if ( TopVar1 == TopVar2 ) - { - if ( pD1C1->iVar == pD1C2->iVar ) - { - if ( pD2C1->iVar != pD2C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD1C2 = pD1C2->pHNext; - pD2C1 = pD2C1->pHNext; - pD2C2 = pD2C2->pHNext; - } - else - { - if ( pD2C1->iVar == pD2C2->iVar ) - return 0; - if ( pD1C1->iVar < pD1C2->iVar ) - { - if ( pD2C1->iVar > pD2C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD2C1 = pD2C1->pHNext; - } - else - { - if ( pD2C1->iVar < pD2C2->iVar ) - return 0; - pD1C2 = pD1C2->pHNext; - pD2C2 = pD2C2->pHNext; - } - } - } - else if ( TopVar1 < TopVar2 ) - { - if ( pD1C1->iVar != pD1C2->iVar ) - return 0; - pD1C1 = pD1C1->pHNext; - pD1C2 = pD1C2->pHNext; - } - else - { - if ( pD2C1->iVar != pD2C2->iVar ) - return 0; - pD2C1 = pD2C1->pHNext; - pD2C2 = pD2C2->pHNext; - } - break; - default: - assert( 0 ); - break; - } - - Code = pD1C1? 8: 0; - Code |= pD1C2? 4: 0; - Code |= pD2C1? 2: 0; - Code |= pD2C2? 1: 0; - } - return 1; -} - - -/**Function************************************************************* - - Synopsis [Allocates the storage for cubes pairs.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fxu_PairAllocStorage( Fxu_Var * pVar, int nCubes ) -{ - int k; -// assert( pVar->nCubes == 0 ); - pVar->nCubes = nCubes; - // allocate memory for all the pairs - pVar->ppPairs = ALLOC( Fxu_Pair **, nCubes ); - pVar->ppPairs[0] = ALLOC( Fxu_Pair *, nCubes * nCubes ); - memset( pVar->ppPairs[0], 0, sizeof(Fxu_Pair *) * nCubes * nCubes ); - for ( k = 1; k < nCubes; k++ ) - pVar->ppPairs[k] = pVar->ppPairs[k-1] + nCubes; -} - -/**Function************************************************************* - - Synopsis [Clears all pairs associated with this cube.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fxu_PairClearStorage( Fxu_Cube * pCube ) -{ - Fxu_Var * pVar; - int i; - pVar = pCube->pVar; - for ( i = 0; i < pVar->nCubes; i++ ) - { - pVar->ppPairs[pCube->iCube][i] = NULL; - pVar->ppPairs[i][pCube->iCube] = NULL; - } -} - -/**Function************************************************************* - - Synopsis [Clears all pairs associated with this cube.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fxu_PairFreeStorage( Fxu_Var * pVar ) -{ - if ( pVar->ppPairs ) - { - FREE( pVar->ppPairs[0] ); - FREE( pVar->ppPairs ); - } -} - -/**Function************************************************************* - - Synopsis [Adds the pair to storage.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Fxu_Pair * Fxu_PairAlloc( Fxu_Matrix * p, Fxu_Cube * pCube1, Fxu_Cube * pCube2 ) -{ - Fxu_Pair * pPair; - assert( pCube1->pVar == pCube2->pVar ); - pPair = MEM_ALLOC_FXU( p, Fxu_Pair, 1 ); - memset( pPair, 0, sizeof(Fxu_Pair) ); - pPair->pCube1 = pCube1; - pPair->pCube2 = pCube2; - pPair->iCube1 = pCube1->iCube; - pPair->iCube2 = pCube2->iCube; - return pPair; -} - -/**Function************************************************************* - - Synopsis [Adds the pair to storage.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Fxu_PairAdd( Fxu_Pair * pPair ) -{ - Fxu_Var * pVar; - - pVar = pPair->pCube1->pVar; - assert( pVar == pPair->pCube2->pVar ); - - pVar->ppPairs[pPair->iCube1][pPair->iCube2] = pPair; - pVar->ppPairs[pPair->iCube2][pPair->iCube1] = pPair; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |