1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include "audio_core/audio_core.h"
#include "common/logging/log.h"
#include "core/arm/arm_interface.h"
#include "core/arm/dynarmic/arm_dynarmic.h"
#include "core/arm/dyncom/arm_dyncom.h"
#include "core/core.h"
#include "core/core_timing.h"
#include "core/gdbstub/gdbstub.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/memory.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/service/service.h"
#include "core/hw/hw.h"
#include "core/loader/loader.h"
#include "core/settings.h"
#include "video_core/video_core.h"
namespace Core {
/*static*/ System System::s_instance;
System::ResultStatus System::RunLoop(int tight_loop) {
if (!cpu_core) {
return ResultStatus::ErrorNotInitialized;
}
if (GDBStub::IsServerEnabled()) {
GDBStub::HandlePacket();
// If the loop is halted and we want to step, use a tiny (1) number of instructions to
// execute. Otherwise, get out of the loop function.
if (GDBStub::GetCpuHaltFlag()) {
if (GDBStub::GetCpuStepFlag()) {
GDBStub::SetCpuStepFlag(false);
tight_loop = 1;
} else {
return ResultStatus::Success;
}
}
}
// If we don't have a currently active thread then don't execute instructions,
// instead advance to the next event and try to yield to the next thread
if (Kernel::GetCurrentThread() == nullptr) {
LOG_TRACE(Core_ARM11, "Idling");
CoreTiming::Idle();
CoreTiming::Advance();
PrepareReschedule();
} else {
cpu_core->Run(tight_loop);
}
HW::Update();
Reschedule();
return ResultStatus::Success;
}
System::ResultStatus System::SingleStep() {
return RunLoop(1);
}
System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& filepath) {
app_loader = Loader::GetLoader(filepath);
if (!app_loader) {
LOG_CRITICAL(Core, "Failed to obtain loader for %s!", filepath.c_str());
return ResultStatus::ErrorGetLoader;
}
boost::optional<u32> system_mode{app_loader->LoadKernelSystemMode()};
if (!system_mode) {
LOG_CRITICAL(Core, "Failed to determine system mode!");
return ResultStatus::ErrorSystemMode;
}
ResultStatus init_result{Init(emu_window, system_mode.get())};
if (init_result != ResultStatus::Success) {
LOG_CRITICAL(Core, "Failed to initialize system (Error %i)!", init_result);
System::Shutdown();
return init_result;
}
const Loader::ResultStatus load_result{app_loader->Load()};
if (Loader::ResultStatus::Success != load_result) {
LOG_CRITICAL(Core, "Failed to load ROM (Error %i)!", load_result);
System::Shutdown();
switch (load_result) {
case Loader::ResultStatus::ErrorEncrypted:
return ResultStatus::ErrorLoader_ErrorEncrypted;
case Loader::ResultStatus::ErrorInvalidFormat:
return ResultStatus::ErrorLoader_ErrorInvalidFormat;
default:
return ResultStatus::ErrorLoader;
}
}
return ResultStatus::Success;
}
void System::PrepareReschedule() {
cpu_core->PrepareReschedule();
reschedule_pending = true;
}
PerfStats::Results System::GetAndResetPerfStats() {
return perf_stats.GetAndResetStats(CoreTiming::GetGlobalTimeUs());
}
void System::Reschedule() {
if (!reschedule_pending) {
return;
}
reschedule_pending = false;
Kernel::Reschedule();
}
System::ResultStatus System::Init(EmuWindow* emu_window, u32 system_mode) {
Memory::Init();
if (Settings::values.use_cpu_jit) {
cpu_core = std::make_unique<ARM_Dynarmic>(USER32MODE);
} else {
cpu_core = std::make_unique<ARM_DynCom>(USER32MODE);
}
CoreTiming::Init();
HW::Init();
Kernel::Init(system_mode);
Service::Init();
AudioCore::Init();
GDBStub::Init();
if (!VideoCore::Init(emu_window)) {
return ResultStatus::ErrorVideoCore;
}
LOG_DEBUG(Core, "Initialized OK");
// Reset counters and set time origin to current frame
GetAndResetPerfStats();
perf_stats.BeginSystemFrame();
return ResultStatus::Success;
}
void System::Shutdown() {
GDBStub::Shutdown();
AudioCore::Shutdown();
VideoCore::Shutdown();
Service::Shutdown();
Kernel::Shutdown();
HW::Shutdown();
CoreTiming::Shutdown();
cpu_core = nullptr;
app_loader = nullptr;
LOG_DEBUG(Core, "Shutdown OK");
}
} // namespace
|
