regop.isa (6456:57e6d35dde10) regop.isa (6461:418145f4d7a6)
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// Redistribution and use of this software in source and binary forms,
5// with or without modification, are permitted provided that the
6// following conditions are met:
7//
8// The software must be used only for Non-Commercial Use which means any

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520 class Mul1s(WrRegOp):
521 code = '''
522 ProdLow = psrc1 * op2;
523 int halfSize = (dataSize * 8) / 2;
524 uint64_t shifter = (1ULL << halfSize);
525 uint64_t hiResult;
526 uint64_t psrc1_h = psrc1 / shifter;
527 uint64_t psrc1_l = psrc1 & mask(halfSize);
1// Copyright (c) 2007-2008 The Hewlett-Packard Development Company
2// All rights reserved.
3//
4// Redistribution and use of this software in source and binary forms,
5// with or without modification, are permitted provided that the
6// following conditions are met:
7//
8// The software must be used only for Non-Commercial Use which means any

--- 511 unchanged lines hidden (view full) ---

520 class Mul1s(WrRegOp):
521 code = '''
522 ProdLow = psrc1 * op2;
523 int halfSize = (dataSize * 8) / 2;
524 uint64_t shifter = (1ULL << halfSize);
525 uint64_t hiResult;
526 uint64_t psrc1_h = psrc1 / shifter;
527 uint64_t psrc1_l = psrc1 & mask(halfSize);
528 uint64_t psrc2_h = op2 / shifter;
528 uint64_t psrc2_h = (op2 / shifter) & mask(halfSize);
529 uint64_t psrc2_l = op2 & mask(halfSize);
530 hiResult = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
531 ((psrc1_l * psrc2_l) / shifter)) /shifter) +
532 psrc1_h * psrc2_h;
533 if (spsrc1 < 0)
534 hiResult -= op2;
535 int64_t bigSop2 = sop2;
536 if (bigSop2 < 0)
537 hiResult -= psrc1;
538 ProdHi = hiResult;
539 '''
540
541 class Mul1u(WrRegOp):
542 code = '''
543 ProdLow = psrc1 * op2;
544 int halfSize = (dataSize * 8) / 2;
545 uint64_t shifter = (1ULL << halfSize);
546 uint64_t psrc1_h = psrc1 / shifter;
547 uint64_t psrc1_l = psrc1 & mask(halfSize);
529 uint64_t psrc2_l = op2 & mask(halfSize);
530 hiResult = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
531 ((psrc1_l * psrc2_l) / shifter)) /shifter) +
532 psrc1_h * psrc2_h;
533 if (spsrc1 < 0)
534 hiResult -= op2;
535 int64_t bigSop2 = sop2;
536 if (bigSop2 < 0)
537 hiResult -= psrc1;
538 ProdHi = hiResult;
539 '''
540
541 class Mul1u(WrRegOp):
542 code = '''
543 ProdLow = psrc1 * op2;
544 int halfSize = (dataSize * 8) / 2;
545 uint64_t shifter = (1ULL << halfSize);
546 uint64_t psrc1_h = psrc1 / shifter;
547 uint64_t psrc1_l = psrc1 & mask(halfSize);
548 uint64_t psrc2_h = op2 / shifter;
548 uint64_t psrc2_h = (op2 / shifter) & mask(halfSize);
549 uint64_t psrc2_l = op2 & mask(halfSize);
550 ProdHi = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
551 ((psrc1_l * psrc2_l) / shifter)) / shifter) +
552 psrc1_h * psrc2_h;
553 '''
554
555 class Mulel(RdRegOp):
556 code = 'DestReg = merge(SrcReg1, ProdLow, dataSize);'

--- 764 unchanged lines hidden --- 		549 uint64_t psrc2_l = op2 & mask(halfSize);
550 ProdHi = ((psrc1_l * psrc2_h + psrc1_h * psrc2_l +
551 ((psrc1_l * psrc2_l) / shifter)) / shifter) +
552 psrc1_h * psrc2_h;
553 '''
554
555 class Mulel(RdRegOp):
556 code = 'DestReg = merge(SrcReg1, ProdLow, dataSize);'

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