2 * Copyright (c) 2007 The Hewlett-Packard Development Company
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 #include "arch/x86/insts/microregop.hh"
44 #include "arch/x86/regs/misc.hh"
45 #include "base/condcodes.hh"
46 #include "debug/X86.hh"
50 uint64_t RegOpBase::genFlags(uint64_t oldFlags
, uint64_t flagMask
,
51 uint64_t _dest
, uint64_t _src1
, uint64_t _src2
,
54 DPRINTF(X86
, "flagMask = %#x\n", flagMask
);
55 uint64_t flags
= oldFlags
& ~flagMask
;
56 if (flagMask
& (ECFBit
| CFBit
))
58 if (findCarry(dataSize
*8, _dest
, _src1
, _src2
))
59 flags
|= (flagMask
& (ECFBit
| CFBit
));
61 flags
^= (flagMask
& (ECFBit
| CFBit
));
63 if (flagMask
& PFBit
&& !findParity(8, _dest
))
67 if (findCarry(4, _dest
, _src1
, _src2
))
72 if (flagMask
& (EZFBit
| ZFBit
) && findZero(dataSize
*8, _dest
))
73 flags
|= (flagMask
& (EZFBit
| ZFBit
));
74 if (flagMask
& SFBit
&& findNegative(dataSize
*8, _dest
))
76 if (flagMask
& OFBit
&& findOverflow(dataSize
*8, _dest
, _src1
, _src2
))
81 std::string
RegOp::generateDisassembly(Addr pc
,
82 const SymbolTable
*symtab
) const
84 std::stringstream response
;
86 printMnemonic(response
, instMnem
, mnemonic
);
87 printDestReg(response
, 0, dataSize
);
89 printSrcReg(response
, 0, dataSize
);
91 printSrcReg(response
, 1, dataSize
);
92 return response
.str();
95 std::string
RegOpImm::generateDisassembly(Addr pc
,
96 const SymbolTable
*symtab
) const
98 std::stringstream response
;
100 printMnemonic(response
, instMnem
, mnemonic
);
101 printDestReg(response
, 0, dataSize
);
103 printSrcReg(response
, 0, dataSize
);
104 ccprintf(response
, ", %#x", imm8
);
105 return response
.str();