gem5  v22.1.0.0
utility.hh
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2007 The Hewlett-Packard Development Company
3  * All rights reserved.
4  *
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.
13  *
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.
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 
38 #ifndef __ARCH_X86_UTILITY_HH__
39 #define __ARCH_X86_UTILITY_HH__
40 
41 #include "cpu/static_inst.hh"
42 #include "cpu/thread_context.hh"
43 #include "sim/full_system.hh"
44 
45 namespace gem5
46 {
47 
48 namespace X86ISA
49 {
63  uint64_t getRFlags(ThreadContext *tc);
64 
77  void setRFlags(ThreadContext *tc, uint64_t val);
78 
91  uint8_t convX87TagsToXTags(uint16_t ftw);
92 
108  uint16_t convX87XTagsToTags(uint8_t ftwx);
109 
123  uint16_t genX87Tags(uint16_t ftw, uint8_t top, int8_t spm);
124 
131  double loadFloat80(const void *mem);
132 
139  void storeFloat80(void *mem, double value);
140 
141 } // namespace X86ISA
142 } // namespace gem5
143 
144 #endif // __ARCH_X86_UTILITY_HH__
Definition: test.h:63
double loadFloat80(const void *_mem)
Load an 80-bit float from memory and convert it to double.
Definition: utility.cc:156
Bitfield< 63 > val
Definition: misc.hh:776
void storeFloat80(void *_mem, double value)
Convert and store a double as an 80-bit float.
Definition: utility.cc:165
uint8_t convX87TagsToXTags(uint16_t ftw)
Convert an x87 tag word to abridged tag format.
Definition: utility.cc:90
void setRFlags(ThreadContext *tc, uint64_t val)
Set update the rflags register and internal gem5 state.
Definition: utility.cc:74
uint16_t convX87XTagsToTags(uint8_t ftwx)
Convert an x87 xtag word to normal tags format.
Definition: utility.cc:115
uint64_t getRFlags(ThreadContext *tc)
Reconstruct the rflags register from the internal gem5 register state.
Definition: utility.cc:58
uint16_t genX87Tags(uint16_t ftw, uint8_t top, int8_t spm)
Generate and updated x87 tag register after a push/pop operation.
Definition: utility.cc:136
Reference material can be found at the JEDEC website: UFS standard http://www.jedec....
bool_vector8 mem[]
Definition: reset_stim.h:43

Generated on Wed Dec 21 2022 10:22:27 for gem5 by doxygen 1.9.1