regop.isa (5424:d4f80459ad5d) regop.isa (5426:0bdcc60ccc45)
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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840
841 class Br(WrRegOp, CondRegOp):
842 code = 'nuIP = psrc1 + op2;'
843 else_code='nuIP = nuIP;'
844
845 class Wruflags(WrRegOp):
846 code = 'ccFlagBits = psrc1 ^ op2'
847
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

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

840
841 class Br(WrRegOp, CondRegOp):
842 code = 'nuIP = psrc1 + op2;'
843 else_code='nuIP = nuIP;'
844
845 class Wruflags(WrRegOp):
846 code = 'ccFlagBits = psrc1 ^ op2'
847
848 class Wrflags(WrRegOp):
849 code = '''
850 MiscReg newFlags = psrc1 ^ op2;
851 MiscReg userFlagMask = 0xDD5;
852 // Get only the user flags
853 ccFlagBits = newFlags & userFlagMask;
854 // Get everything else
855 nccFlagBits = newFlags & ~userFlagMask;
856 '''
857
848 class Rdip(RdRegOp):
849 code = 'DestReg = RIP - CSBase'
850
851 class Ruflags(RdRegOp):
852 code = 'DestReg = ccFlagBits'
853
858 class Rdip(RdRegOp):
859 code = 'DestReg = RIP - CSBase'
860
861 class Ruflags(RdRegOp):
862 code = 'DestReg = ccFlagBits'
863
864 class Rflags(RdRegOp):
865 code = 'DestReg = ccFlagBits | nccFlagBits'
866
854 class Ruflag(RegOp):
855 code = '''
856 int flag = bits(ccFlagBits, imm8);
857 DestReg = merge(DestReg, flag, dataSize);
858 ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) :
859 (ccFlagBits & ~EZFBit);
860 '''
861 def __init__(self, dest, imm, flags=None, \
862 dataSize="env.dataSize"):
863 super(Ruflag, self).__init__(dest, \
864 "NUM_INTREGS", imm, flags, dataSize)
865
867 class Ruflag(RegOp):
868 code = '''
869 int flag = bits(ccFlagBits, imm8);
870 DestReg = merge(DestReg, flag, dataSize);
871 ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) :
872 (ccFlagBits & ~EZFBit);
873 '''
874 def __init__(self, dest, imm, flags=None, \
875 dataSize="env.dataSize"):
876 super(Ruflag, self).__init__(dest, \
877 "NUM_INTREGS", imm, flags, dataSize)
878
879 class Rflag(RegOp):
880 code = '''
881 MiscReg flagMask = 0x3F7FDD5;
882 MiscReg flags = (nccFlagBits | ccFlagBits) & flagMask;
883 int flag = bits(flags, imm8);
884 DestReg = merge(DestReg, flag, dataSize);
885 ccFlagBits = (flag == 0) ? (ccFlagBits | EZFBit) :
886 (ccFlagBits & ~EZFBit);
887 '''
888 def __init__(self, dest, imm, flags=None, \
889 dataSize="env.dataSize"):
890 super(Rflag, self).__init__(dest, \
891 "NUM_INTREGS", imm, flags, dataSize)
892
866 class Sext(RegOp):
867 code = '''
868 IntReg val = psrc1;
869 // Mask the bit position so that it wraps.
870 int bitPos = op2 & (dataSize * 8 - 1);
871 int sign_bit = bits(val, bitPos, bitPos);
872 uint64_t maskVal = mask(bitPos+1);
873 val = sign_bit ? (val | ~maskVal) : (val & maskVal);

--- 189 unchanged lines hidden --- 		893 class Sext(RegOp):
894 code = '''
895 IntReg val = psrc1;
896 // Mask the bit position so that it wraps.
897 int bitPos = op2 & (dataSize * 8 - 1);
898 int sign_bit = bits(val, bitPos, bitPos);
899 uint64_t maskVal = mask(bitPos+1);
900 val = sign_bit ? (val | ~maskVal) : (val & maskVal);

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