42 *
43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 *
55 * Authors: Gabe Black
56 */
57
58#ifndef __ARCH_X86_INSTS_MICROLDSTOP_HH__
59#define __ARCH_X86_INSTS_MICROLDSTOP_HH__
60
61#include "arch/x86/insts/microop.hh"
62#include "mem/packet.hh"
63#include "mem/request.hh"
64
65namespace X86ISA
66{
67 const Request::FlagsType SegmentFlagMask = mask(4);
68 const int FlagShift = 4;
69 enum FlagBit {
70 CPL0FlagBit = 1,
71 AddrSizeFlagBit = 2,
72 StoreCheck = 4
73 };
74
75 /**
76 * Base class for load and store ops
77 */
78 class LdStOp : public X86MicroopBase
79 {
80 protected:
81 const uint8_t scale;
82 const RegIndex index;
83 const RegIndex base;
84 const uint64_t disp;
85 const uint8_t segment;
86 const RegIndex data;
87 const uint8_t dataSize;
88 const uint8_t addressSize;
89 const Request::FlagsType memFlags;
90 RegIndex foldOBit, foldABit;
91
92 //Constructor
93 LdStOp(ExtMachInst _machInst,
94 const char * mnem, const char * _instMnem,
95 bool isMicro, bool isDelayed, bool isFirst, bool isLast,
96 uint8_t _scale, InstRegIndex _index, InstRegIndex _base,
97 uint64_t _disp, InstRegIndex _segment,
98 InstRegIndex _data,
99 uint8_t _dataSize, uint8_t _addressSize,
100 Request::FlagsType _memFlags,
101 OpClass __opClass) :
102 X86MicroopBase(machInst, mnem, _instMnem,
103 isMicro, isDelayed, isFirst, isLast, __opClass),
104 scale(_scale), index(_index.idx), base(_base.idx),
105 disp(_disp), segment(_segment.idx),
106 data(_data.idx),
107 dataSize(_dataSize), addressSize(_addressSize),
108 memFlags(_memFlags | _segment.idx)
109 {
110 assert(_segment.idx < NUM_SEGMENTREGS);
111 foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0;
112 foldABit =
113 (addressSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0;
114 }
115
116 std::string generateDisassembly(Addr pc,
117 const SymbolTable *symtab) const;
118
119 template<class Context, class MemType>
120 Fault read(Context *xc, Addr EA, MemType & Mem, unsigned flags) const
121 {
122 Fault fault = NoFault;
123 switch(dataSize)
124 {
125 case 1:
126 fault = xc->read(EA, (uint8_t&)Mem, flags);
127 break;
128 case 2:
129 fault = xc->read(EA, (uint16_t&)Mem, flags);
130 break;
131 case 4:
132 fault = xc->read(EA, (uint32_t&)Mem, flags);
133 break;
134 case 8:
135 fault = xc->read(EA, (uint64_t&)Mem, flags);
136 break;
137 default:
138 panic("Bad operand size %d for read at %#x.\n", dataSize, EA);
139 }
140 return fault;
141 }
142
143 template<class Context, class MemType>
144 Fault write(Context *xc, MemType & Mem, Addr EA, unsigned flags) const
145 {
146 Fault fault = NoFault;
147 switch(dataSize)
148 {
149 case 1:
150 fault = xc->write((uint8_t&)Mem, EA, flags, 0);
151 break;
152 case 2:
153 fault = xc->write((uint16_t&)Mem, EA, flags, 0);
154 break;
155 case 4:
156 fault = xc->write((uint32_t&)Mem, EA, flags, 0);
157 break;
158 case 8:
159 fault = xc->write((uint64_t&)Mem, EA, flags, 0);
160 break;
161 default:
162 panic("Bad operand size %d for write at %#x.\n", dataSize, EA);
163 }
164 return fault;
165 }
166
167 uint64_t
168 get(PacketPtr pkt) const
169 {
170 switch(dataSize)
171 {
172 case 1:
173 return pkt->get<uint8_t>();
174 case 2:
175 return pkt->get<uint16_t>();
176 case 4:
177 return pkt->get<uint32_t>();
178 case 8:
179 return pkt->get<uint64_t>();
180 default:
181 panic("Bad operand size %d for read at %#x.\n",
182 dataSize, pkt->getAddr());
183 }
184 }
185 };
186}
187
188#endif //__ARCH_X86_INSTS_MICROLDSTOP_HH__
| 24 *
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.
36 *
37 * Authors: Gabe Black
38 */
39
40#ifndef __ARCH_X86_INSTS_MICROLDSTOP_HH__
41#define __ARCH_X86_INSTS_MICROLDSTOP_HH__
42
43#include "arch/x86/insts/microop.hh"
44#include "mem/packet.hh"
45#include "mem/request.hh"
46
47namespace X86ISA
48{
49 const Request::FlagsType SegmentFlagMask = mask(4);
50 const int FlagShift = 4;
51 enum FlagBit {
52 CPL0FlagBit = 1,
53 AddrSizeFlagBit = 2,
54 StoreCheck = 4
55 };
56
57 /**
58 * Base class for load and store ops
59 */
60 class LdStOp : public X86MicroopBase
61 {
62 protected:
63 const uint8_t scale;
64 const RegIndex index;
65 const RegIndex base;
66 const uint64_t disp;
67 const uint8_t segment;
68 const RegIndex data;
69 const uint8_t dataSize;
70 const uint8_t addressSize;
71 const Request::FlagsType memFlags;
72 RegIndex foldOBit, foldABit;
73
74 //Constructor
75 LdStOp(ExtMachInst _machInst,
76 const char * mnem, const char * _instMnem,
77 bool isMicro, bool isDelayed, bool isFirst, bool isLast,
78 uint8_t _scale, InstRegIndex _index, InstRegIndex _base,
79 uint64_t _disp, InstRegIndex _segment,
80 InstRegIndex _data,
81 uint8_t _dataSize, uint8_t _addressSize,
82 Request::FlagsType _memFlags,
83 OpClass __opClass) :
84 X86MicroopBase(machInst, mnem, _instMnem,
85 isMicro, isDelayed, isFirst, isLast, __opClass),
86 scale(_scale), index(_index.idx), base(_base.idx),
87 disp(_disp), segment(_segment.idx),
88 data(_data.idx),
89 dataSize(_dataSize), addressSize(_addressSize),
90 memFlags(_memFlags | _segment.idx)
91 {
92 assert(_segment.idx < NUM_SEGMENTREGS);
93 foldOBit = (dataSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0;
94 foldABit =
95 (addressSize == 1 && !_machInst.rex.present) ? 1 << 6 : 0;
96 }
97
98 std::string generateDisassembly(Addr pc,
99 const SymbolTable *symtab) const;
100
101 template<class Context, class MemType>
102 Fault read(Context *xc, Addr EA, MemType & Mem, unsigned flags) const
103 {
104 Fault fault = NoFault;
105 switch(dataSize)
106 {
107 case 1:
108 fault = xc->read(EA, (uint8_t&)Mem, flags);
109 break;
110 case 2:
111 fault = xc->read(EA, (uint16_t&)Mem, flags);
112 break;
113 case 4:
114 fault = xc->read(EA, (uint32_t&)Mem, flags);
115 break;
116 case 8:
117 fault = xc->read(EA, (uint64_t&)Mem, flags);
118 break;
119 default:
120 panic("Bad operand size %d for read at %#x.\n", dataSize, EA);
121 }
122 return fault;
123 }
124
125 template<class Context, class MemType>
126 Fault write(Context *xc, MemType & Mem, Addr EA, unsigned flags) const
127 {
128 Fault fault = NoFault;
129 switch(dataSize)
130 {
131 case 1:
132 fault = xc->write((uint8_t&)Mem, EA, flags, 0);
133 break;
134 case 2:
135 fault = xc->write((uint16_t&)Mem, EA, flags, 0);
136 break;
137 case 4:
138 fault = xc->write((uint32_t&)Mem, EA, flags, 0);
139 break;
140 case 8:
141 fault = xc->write((uint64_t&)Mem, EA, flags, 0);
142 break;
143 default:
144 panic("Bad operand size %d for write at %#x.\n", dataSize, EA);
145 }
146 return fault;
147 }
148
149 uint64_t
150 get(PacketPtr pkt) const
151 {
152 switch(dataSize)
153 {
154 case 1:
155 return pkt->get<uint8_t>();
156 case 2:
157 return pkt->get<uint16_t>();
158 case 4:
159 return pkt->get<uint32_t>();
160 case 8:
161 return pkt->get<uint64_t>();
162 default:
163 panic("Bad operand size %d for read at %#x.\n",
164 dataSize, pkt->getAddr());
165 }
166 }
167 };
168}
169
170#endif //__ARCH_X86_INSTS_MICROLDSTOP_HH__
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