regop.isa (6446:cc8568cfce8f) regop.isa (6447:eebbe9f1bf10)
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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729 (op2 & ((dataSize == 8) ? mask(6) : mask(5)));
730 if(shiftAmt)
731 {
732 uint64_t top = psrc1 << (dataSize * 8 - shiftAmt);
733 uint64_t bottom = bits(psrc1, dataSize * 8, shiftAmt);
734 DestReg = merge(DestReg, top | bottom, dataSize);
735 }
736 else
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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729 (op2 & ((dataSize == 8) ? mask(6) : mask(5)));
730 if(shiftAmt)
731 {
732 uint64_t top = psrc1 << (dataSize * 8 - shiftAmt);
733 uint64_t bottom = bits(psrc1, dataSize * 8, shiftAmt);
734 DestReg = merge(DestReg, top | bottom, dataSize);
735 }
736 else
737 DestReg = DestReg;
737 DestReg = merge(DestReg, DestReg, dataSize);
738 '''
739 flag_code = '''
740 // If the shift amount is zero, no flags should be modified.
741 if (shiftAmt) {
742 //Zero out any flags we might modify. This way we only have to
743 //worry about setting them.
744 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
745 //Find the most and second most significant bits of the result.

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766 CCFlagBits flags = ccFlagBits;
767 uint64_t top = flags.cf << (dataSize * 8 - shiftAmt);
768 if(shiftAmt > 1)
769 top |= psrc1 << (dataSize * 8 - shiftAmt - 1);
770 uint64_t bottom = bits(psrc1, dataSize * 8, shiftAmt);
771 DestReg = merge(DestReg, top | bottom, dataSize);
772 }
773 else
738 '''
739 flag_code = '''
740 // If the shift amount is zero, no flags should be modified.
741 if (shiftAmt) {
742 //Zero out any flags we might modify. This way we only have to
743 //worry about setting them.
744 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
745 //Find the most and second most significant bits of the result.

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766 CCFlagBits flags = ccFlagBits;
767 uint64_t top = flags.cf << (dataSize * 8 - shiftAmt);
768 if(shiftAmt > 1)
769 top |= psrc1 << (dataSize * 8 - shiftAmt - 1);
770 uint64_t bottom = bits(psrc1, dataSize * 8, shiftAmt);
771 DestReg = merge(DestReg, top | bottom, dataSize);
772 }
773 else
774 DestReg = DestReg;
774 DestReg = merge(DestReg, DestReg, dataSize);
775 '''
776 flag_code = '''
777 // If the shift amount is zero, no flags should be modified.
778 if (shiftAmt) {
779 //Zero out any flags we might modify. This way we only have to
780 //worry about setting them.
781 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
782 //Figure out what the OF bit should be.

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800 if(realShiftAmt)
801 {
802 uint64_t top = psrc1 << realShiftAmt;
803 uint64_t bottom =
804 bits(psrc1, dataSize * 8 - 1, dataSize * 8 - realShiftAmt);
805 DestReg = merge(DestReg, top | bottom, dataSize);
806 }
807 else
775 '''
776 flag_code = '''
777 // If the shift amount is zero, no flags should be modified.
778 if (shiftAmt) {
779 //Zero out any flags we might modify. This way we only have to
780 //worry about setting them.
781 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
782 //Figure out what the OF bit should be.

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800 if(realShiftAmt)
801 {
802 uint64_t top = psrc1 << realShiftAmt;
803 uint64_t bottom =
804 bits(psrc1, dataSize * 8 - 1, dataSize * 8 - realShiftAmt);
805 DestReg = merge(DestReg, top | bottom, dataSize);
806 }
807 else
808 DestReg = DestReg;
808 DestReg = merge(DestReg, DestReg, dataSize);
809 '''
810 flag_code = '''
811 // If the shift amount is zero, no flags should be modified.
812 if (shiftAmt) {
813 //Zero out any flags we might modify. This way we only have to
814 //worry about setting them.
815 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
816 //The CF bits, if set, would be set to the lsb of the result.

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839 uint64_t bottom = flags.cf << (shiftAmt - 1);
840 if(shiftAmt > 1)
841 bottom |=
842 bits(psrc1, dataSize * 8 - 1,
843 dataSize * 8 - shiftAmt + 1);
844 DestReg = merge(DestReg, top | bottom, dataSize);
845 }
846 else
809 '''
810 flag_code = '''
811 // If the shift amount is zero, no flags should be modified.
812 if (shiftAmt) {
813 //Zero out any flags we might modify. This way we only have to
814 //worry about setting them.
815 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
816 //The CF bits, if set, would be set to the lsb of the result.

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839 uint64_t bottom = flags.cf << (shiftAmt - 1);
840 if(shiftAmt > 1)
841 bottom |=
842 bits(psrc1, dataSize * 8 - 1,
843 dataSize * 8 - shiftAmt + 1);
844 DestReg = merge(DestReg, top | bottom, dataSize);
845 }
846 else
847 DestReg = DestReg;
847 DestReg = merge(DestReg, DestReg, dataSize);
848 '''
849 flag_code = '''
850 // If the shift amount is zero, no flags should be modified.
851 if (shiftAmt) {
852 //Zero out any flags we might modify. This way we only have to
853 //worry about setting them.
854 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
855 int msb = bits(DestReg, dataSize * 8 - 1);

--- 455 unchanged lines hidden --- 		848 '''
849 flag_code = '''
850 // If the shift amount is zero, no flags should be modified.
851 if (shiftAmt) {
852 //Zero out any flags we might modify. This way we only have to
853 //worry about setting them.
854 ccFlagBits = ccFlagBits & ~(ext & (CFBit | ECFBit | OFBit));
855 int msb = bits(DestReg, dataSize * 8 - 1);

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