gem5 v24.0.0.0
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utility.hh
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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
45namespace gem5
46{
47
48namespace 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:804
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
Copyright (c) 2024 - Pranith Kumar Copyright (c) 2020 Inria All rights reserved.
Definition binary32.hh:36
bool_vector8 mem[]
Definition reset_stim.h:43

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