microregop.cc (4693:ca44a1014212) microregop.cc (4713:c208cec7b5b3)
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *

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58#include "arch/x86/insts/microregop.hh"
59#include "arch/x86/miscregs.hh"
60#include "base/condcodes.hh"
61#include <string>
62
63namespace X86ISA
64{
65 uint64_t RegOpBase::genFlags(uint64_t oldFlags, uint64_t flagMask,
1/*
2 * Copyright (c) 2007 The Hewlett-Packard Development Company
3 * All rights reserved.
4 *
5 * Redistribution and use of this software in source and binary forms,
6 * with or without modification, are permitted provided that the
7 * following conditions are met:
8 *

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58#include "arch/x86/insts/microregop.hh"
59#include "arch/x86/miscregs.hh"
60#include "base/condcodes.hh"
61#include <string>
62
63namespace X86ISA
64{
65 uint64_t RegOpBase::genFlags(uint64_t oldFlags, uint64_t flagMask,
66 uint64_t _dest, uint64_t _src1, uint64_t _src2) const
66 uint64_t _dest, uint64_t _src1, uint64_t _src2,
67 bool subtract) const
67 {
68 {
69 DPRINTF(Sparc, "flagMask = %#x\n", flagMask);
68 uint64_t flags = oldFlags & ~flagMask;
70 uint64_t flags = oldFlags & ~flagMask;
69 if(flagMask & CFBit && findCarry(dataSize, _dest, _src1, _src2))
70 flags |= CFBit;
71 if(flagMask & PFBit && findParity(dataSize, _dest))
71 if(flagMask & CFBit)
72 if(findCarry(dataSize*8, _dest, _src1, _src2))
73 flags |= CFBit;
74 if(subtract)
75 flags ^= CFBit;
76 if(flagMask & PFBit && findParity(dataSize*8, _dest))
72 flags |= PFBit;
77 flags |= PFBit;
73 if(flagMask & ECFBit && findCarry(dataSize, _dest, _src1, _src2))
78 if(flagMask & ECFBit && findCarry(dataSize*8, _dest, _src1, _src2))
74 flags |= ECFBit;
79 flags |= ECFBit;
75 if(flagMask & AFBit && findCarry(4, _dest, _src1, _src2))
76 flags |= AFBit;
77 if(flagMask & EZFBit && findZero(dataSize, _dest))
80 if(flagMask & AFBit)
81 if(findCarry(4, _dest, _src1, _src2))
82 flags |= AFBit;
83 if(subtract)
84 flags ^= AFBit;
85 if(flagMask & EZFBit && findZero(dataSize*8, _dest))
78 flags |= EZFBit;
86 flags |= EZFBit;
79 if(flagMask & ZFBit && findZero(dataSize, _dest))
87 if(flagMask & ZFBit && findZero(dataSize*8, _dest))
80 flags |= ZFBit;
88 flags |= ZFBit;
81 if(flagMask & SFBit && findNegative(dataSize, _dest))
89 if(flagMask & SFBit && findNegative(dataSize*8, _dest))
82 flags |= SFBit;
90 flags |= SFBit;
83 if(flagMask & OFBit && findOverflow(dataSize, _dest, _src1, _src2))
91 if(flagMask & OFBit && findOverflow(dataSize*8, _dest, _src1, _src2))
84 flags |= OFBit;
85 return flags;
86 }
87
88 bool RegOpBase::checkCondition(uint64_t flags) const
89 {
90 CCFlagBits ccflags = flags;
91 switch(ext)

--- 97 unchanged lines hidden --- 		92 flags |= OFBit;
93 return flags;
94 }
95
96 bool RegOpBase::checkCondition(uint64_t flags) const
97 {
98 CCFlagBits ccflags = flags;
99 switch(ext)

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