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Diffstat (limited to 'src/core/file_sys/cheat_engine.cpp')
-rw-r--r--src/core/file_sys/cheat_engine.cpp70
1 files changed, 38 insertions, 32 deletions
diff --git a/src/core/file_sys/cheat_engine.cpp b/src/core/file_sys/cheat_engine.cpp
index e4383d8c1..09ca9d705 100644
--- a/src/core/file_sys/cheat_engine.cpp
+++ b/src/core/file_sys/cheat_engine.cpp
@@ -18,7 +18,7 @@
namespace FileSys {
-constexpr u64 CHEAT_ENGINE_TICKS = CoreTiming::BASE_CLOCK_RATE / 60;
+constexpr u64 CHEAT_ENGINE_TICKS = Core::Timing::BASE_CLOCK_RATE / 60;
constexpr u32 KEYPAD_BITMASK = 0x3FFFFFF;
u64 Cheat::Address() const {
@@ -82,7 +82,7 @@ CheatList::CheatList(ProgramSegment master, ProgramSegment standard)
bool CheatList::EvaluateConditional(const Cheat& cheat) const {
using ComparisonFunction = bool (*)(u64, u64);
- constexpr ComparisonFunction comparison_functions[] = {
+ constexpr std::array<ComparisonFunction, 6> comparison_functions{
[](u64 a, u64 b) { return a > b; }, [](u64 a, u64 b) { return a >= b; },
[](u64 a, u64 b) { return a < b; }, [](u64 a, u64 b) { return a <= b; },
[](u64 a, u64 b) { return a == b; }, [](u64 a, u64 b) { return a != b; },
@@ -103,7 +103,7 @@ bool CheatList::EvaluateConditional(const Cheat& cheat) const {
const auto press_state =
applet_resource
->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad)
- .GetPressState();
+ .GetAndResetPressState();
return ((press_state & cheat.KeypadValue()) & KEYPAD_BITMASK) != 0;
}
@@ -112,7 +112,7 @@ bool CheatList::EvaluateConditional(const Cheat& cheat) const {
const auto offset =
cheat.memory_type == MemoryType::MainNSO ? main_region_begin : heap_region_begin;
ASSERT(static_cast<u8>(cheat.comparison_op.Value()) < 6);
- const auto* function = comparison_functions[static_cast<u8>(cheat.comparison_op.Value())];
+ auto* function = comparison_functions[static_cast<u8>(cheat.comparison_op.Value())];
const auto addr = cheat.Address() + offset;
return function(reader(cheat.width, SanitizeAddress(addr)), cheat.ValueWidth(8));
@@ -157,7 +157,7 @@ void CheatList::ProcessBlockPairs(const Block& block) {
void CheatList::WriteImmediate(const Cheat& cheat) {
const auto offset =
cheat.memory_type == MemoryType::MainNSO ? main_region_begin : heap_region_begin;
- auto& register_3 = scratch.at(cheat.register_3);
+ const auto& register_3 = scratch.at(cheat.register_3);
const auto addr = cheat.Address() + offset + register_3;
LOG_DEBUG(Common_Filesystem, "writing value={:016X} to addr={:016X}", addr,
@@ -166,11 +166,13 @@ void CheatList::WriteImmediate(const Cheat& cheat) {
}
void CheatList::BeginConditional(const Cheat& cheat) {
- if (!EvaluateConditional(cheat)) {
- const auto iter = block_pairs.find(current_index);
- ASSERT(iter != block_pairs.end());
- current_index = iter->second - 1;
+ if (EvaluateConditional(cheat)) {
+ return;
}
+
+ const auto iter = block_pairs.find(current_index);
+ ASSERT(iter != block_pairs.end());
+ current_index = iter->second - 1;
}
void CheatList::EndConditional(const Cheat& cheat) {
@@ -218,7 +220,7 @@ void CheatList::LoadIndexed(const Cheat& cheat) {
}
void CheatList::StoreIndexed(const Cheat& cheat) {
- auto& register_3 = scratch.at(cheat.register_3);
+ const auto& register_3 = scratch.at(cheat.register_3);
const auto addr =
register_3 + (cheat.add_additional_register.Value() ? scratch.at(cheat.register_6) : 0);
@@ -229,14 +231,14 @@ void CheatList::StoreIndexed(const Cheat& cheat) {
void CheatList::RegisterArithmetic(const Cheat& cheat) {
using ArithmeticFunction = u64 (*)(u64, u64);
- constexpr ArithmeticFunction arithmetic_functions[] = {
+ constexpr std::array<ArithmeticFunction, 5> arithmetic_functions{
[](u64 a, u64 b) { return a + b; }, [](u64 a, u64 b) { return a - b; },
[](u64 a, u64 b) { return a * b; }, [](u64 a, u64 b) { return a << b; },
[](u64 a, u64 b) { return a >> b; },
};
using ArithmeticOverflowCheck = bool (*)(u64, u64);
- constexpr ArithmeticOverflowCheck arithmetic_overflow_checks[] = {
+ constexpr std::array<ArithmeticOverflowCheck, 5> arithmetic_overflow_checks{
[](u64 a, u64 b) { return a > (std::numeric_limits<u64>::max() - b); }, // a + b
[](u64 a, u64 b) { return a > (std::numeric_limits<u64>::max() + b); }, // a - b
[](u64 a, u64 b) { return a > (std::numeric_limits<u64>::max() / b); }, // a * b
@@ -250,8 +252,8 @@ void CheatList::RegisterArithmetic(const Cheat& cheat) {
auto& register_3 = scratch.at(cheat.register_3);
ASSERT(static_cast<u8>(cheat.arithmetic_op.Value()) < 5);
- const auto* function = arithmetic_functions[static_cast<u8>(cheat.arithmetic_op.Value())];
- const auto* overflow_function =
+ auto* function = arithmetic_functions[static_cast<u8>(cheat.arithmetic_op.Value())];
+ auto* overflow_function =
arithmetic_overflow_checks[static_cast<u8>(cheat.arithmetic_op.Value())];
LOG_DEBUG(Common_Filesystem, "performing arithmetic with register={:01X}, value={:016X}",
cheat.register_3, cheat.ValueWidth(4));
@@ -267,11 +269,12 @@ void CheatList::RegisterArithmetic(const Cheat& cheat) {
}
void CheatList::BeginConditionalInput(const Cheat& cheat) {
- if (!EvaluateConditional(cheat)) {
- const auto iter = block_pairs.find(current_index);
- ASSERT(iter != block_pairs.end());
- current_index = iter->second - 1;
- }
+ if (EvaluateConditional(cheat))
+ return;
+
+ const auto iter = block_pairs.find(current_index);
+ ASSERT(iter != block_pairs.end());
+ current_index = iter->second - 1;
}
VAddr CheatList::SanitizeAddress(VAddr in) const {
@@ -290,7 +293,7 @@ VAddr CheatList::SanitizeAddress(VAddr in) const {
void CheatList::ExecuteSingleCheat(const Cheat& cheat) {
using CheatOperationFunction = void (CheatList::*)(const Cheat&);
- constexpr CheatOperationFunction cheat_operation_functions[] = {
+ constexpr std::array<CheatOperationFunction, 9> cheat_operation_functions{
&CheatList::WriteImmediate, &CheatList::BeginConditional,
&CheatList::EndConditional, &CheatList::Loop,
&CheatList::LoadImmediate, &CheatList::LoadIndexed,
@@ -346,7 +349,7 @@ CheatList TextCheatParser::Parse(const std::vector<u8>& data) const {
if (!line.empty() && (line[0] == '[' || line[0] == '{')) {
const auto master = line[0] == '{';
const auto begin = master ? line.find('{') : line.find('[');
- const auto end = master ? line.find_last_of('}') : line.find_last_of(']');
+ const auto end = master ? line.rfind('}') : line.rfind(']');
ASSERT(begin != std::string::npos && end != std::string::npos);
@@ -422,7 +425,7 @@ std::array<u8, 16> TextCheatParser::ParseSingleLineCheat(const std::string& line
return out;
}
-u64 MemoryReadImpl(u8 width, VAddr addr) {
+u64 MemoryReadImpl(u32 width, VAddr addr) {
switch (width) {
case 1:
return Memory::Read8(addr);
@@ -438,7 +441,7 @@ u64 MemoryReadImpl(u8 width, VAddr addr) {
}
}
-void MemoryWriteImpl(u8 width, VAddr addr, u64 value) {
+void MemoryWriteImpl(u32 width, VAddr addr, u64 value) {
switch (width) {
case 1:
Memory::Write8(addr, static_cast<u8>(value));
@@ -457,31 +460,34 @@ void MemoryWriteImpl(u8 width, VAddr addr, u64 value) {
}
}
-CheatEngine::CheatEngine(std::vector<CheatList> cheats, const std::string& build_id)
+CheatEngine::CheatEngine(std::vector<CheatList> cheats, const std::string& build_id,
+ VAddr code_region_start, VAddr code_region_end)
: cheats(std::move(cheats)) {
- event = CoreTiming::RegisterEvent(
+ auto& core_timing{Core::System::GetInstance().CoreTiming()};
+ event = core_timing.RegisterEvent(
"CheatEngine::FrameCallback::" + build_id,
[this](u64 userdata, s64 cycles_late) { FrameCallback(userdata, cycles_late); });
- CoreTiming::ScheduleEvent(CHEAT_ENGINE_TICKS, event);
+ core_timing.ScheduleEvent(CHEAT_ENGINE_TICKS, event);
const auto& vm_manager = Core::System::GetInstance().CurrentProcess()->VMManager();
for (auto& list : this->cheats) {
- list.SetMemoryParameters(
- vm_manager.GetMainCodeRegionBaseAddress(), vm_manager.GetHeapRegionBaseAddress(),
- vm_manager.GetMainCodeRegionEndAddress(), vm_manager.GetHeapRegionEndAddress(),
- &MemoryWriteImpl, &MemoryReadImpl);
+ list.SetMemoryParameters(code_region_start, vm_manager.GetHeapRegionBaseAddress(),
+ code_region_end, vm_manager.GetHeapRegionEndAddress(),
+ &MemoryWriteImpl, &MemoryReadImpl);
}
}
CheatEngine::~CheatEngine() {
- CoreTiming::UnscheduleEvent(event, 0);
+ auto& core_timing{Core::System::GetInstance().CoreTiming()};
+ core_timing.UnscheduleEvent(event, 0);
}
void CheatEngine::FrameCallback(u64 userdata, int cycles_late) {
for (auto& list : cheats)
list.Execute();
- CoreTiming::ScheduleEvent(CHEAT_ENGINE_TICKS - cycles_late, event);
+ auto& core_timing{Core::System::GetInstance().CoreTiming()};
+ core_timing.ScheduleEvent(CHEAT_ENGINE_TICKS - cycles_late, event);
}
} // namespace FileSys
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 13:56:52 +0200