35 files changed, 246 insertions, 317 deletions

diff --git a/src/core/hle/service/acc/profile_manager.cpp b/src/core/hle/service/acc/profile_manager.cpp
index 9c302043a..9b829e957 100644
--- a/src/core/hle/service/acc/profile_manager.cpp
+++ b/src/core/hle/service/acc/profile_manager.cpp
@@ -41,15 +41,12 @@ constexpr char ACC_SAVE_AVATORS_BASE_PATH[] = "/system/save/8000000000000010/su/
 ProfileManager::ProfileManager() {
     ParseUserSaveFile();
 
-    if (user_count == 0) {
+    if (user_count == 0)
         CreateNewUser(UUID::Generate(), "yuzu");
-    }
 
-    auto current = static_cast<size_t>(
-        std::clamp(Settings::values.current_user, 0, static_cast<s32>(MAX_USERS - 1)));
-    if (UserExistsIndex(current)) {
+    auto current = std::clamp<int>(Settings::values.current_user, 0, MAX_USERS - 1);
+    if (UserExistsIndex(current))
         current = 0;
-    }
 
     OpenUser(*GetUser(current));
 }
@@ -192,8 +189,8 @@ std::size_t ProfileManager::GetUserCount() const {
 /// booting
 
 std::size_t ProfileManager::GetOpenUserCount() const {
-    return static_cast<std::size_t>(std::count_if(profiles.begin(), profiles.end(),
-                                                  [](const ProfileInfo& p) { return p.is_open; }));
+    return std::count_if(profiles.begin(), profiles.end(),
+                         [](const ProfileInfo& p) { return p.is_open; });
 }
 
 /// Checks if a user id exists in our profile manager
diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp
index 995b7e5c6..d7a81f64a 100644
--- a/src/core/hle/service/am/am.cpp
+++ b/src/core/hle/service/am/am.cpp
@@ -1311,7 +1311,7 @@ void IApplicationFunctions::PopLaunchParameter(Kernel::HLERequestContext& ctx) {
         params.is_account_selected = 1;
 
         Account::ProfileManager profile_manager{};
-        const auto uuid = profile_manager.GetUser(static_cast<u32>(Settings::values.current_user));
+        const auto uuid = profile_manager.GetUser(Settings::values.current_user);
         ASSERT(uuid);
         params.current_user = uuid->uuid;
 
diff --git a/src/core/hle/service/am/applets/controller.cpp b/src/core/hle/service/am/applets/controller.cpp
index 17788d7a5..2151da783 100644
--- a/src/core/hle/service/am/applets/controller.cpp
+++ b/src/core/hle/service/am/applets/controller.cpp
@@ -178,23 +178,23 @@ void Controller::Execute() {
 }
 
 void Controller::ConfigurationComplete() {
-    const auto& players = Settings::values.players;
-
-    const s8 player_count =
-        is_single_mode
-            ? 1
-            : static_cast<s8>(std::count_if(players.begin(), players.end() - 2,
-                                            [](const auto& player) { return player.connected; }));
+    ControllerSupportResultInfo result_info{};
 
-    const auto index = static_cast<u32>(std::distance(
-        players.begin(), std::find_if(players.begin(), players.end(),
-                                      [](const auto& player) { return player.connected; })));
+    const auto& players = Settings::values.players;
 
     // If enable_single_mode is enabled, player_count is 1 regardless of any other parameters.
     // Otherwise, only count connected players from P1-P8.
-    ControllerSupportResultInfo result_info{};
-    result_info.player_count = player_count;
-    result_info.selected_id = HID::Controller_NPad::IndexToNPad(index);
+    result_info.player_count =
+        is_single_mode ? 1
+                       : static_cast<s8>(std::count_if(
+                             players.begin(), players.end() - 2,
+                             [](Settings::PlayerInput player) { return player.connected; }));
+
+    result_info.selected_id = HID::Controller_NPad::IndexToNPad(
+        std::distance(players.begin(),
+                      std::find_if(players.begin(), players.end(),
+                                   [](Settings::PlayerInput player) { return player.connected; })));
+
     result_info.result = 0;
 
     LOG_DEBUG(Service_HID, "Result Info: player_count={}, selected_id={}, result={}",
diff --git a/src/core/hle/service/audio/audout_u.cpp b/src/core/hle/service/audio/audout_u.cpp
index a345a68e6..9b4910e53 100644
--- a/src/core/hle/service/audio/audout_u.cpp
+++ b/src/core/hle/service/audio/audout_u.cpp
@@ -69,10 +69,9 @@ public:
         buffer_event =
             Kernel::WritableEvent::CreateEventPair(system.Kernel(), "IAudioOutBufferReleased");
 
-        stream =
-            audio_core.OpenStream(system.CoreTiming(), static_cast<u32>(audio_params.sample_rate),
-                                  audio_params.channel_count, std::move(unique_name),
-                                  [this] { buffer_event.writable->Signal(); });
+        stream = audio_core.OpenStream(system.CoreTiming(), audio_params.sample_rate,
+                                       audio_params.channel_count, std::move(unique_name),
+                                       [this] { buffer_event.writable->Signal(); });
     }
 
 private:
diff --git a/src/core/hle/service/audio/hwopus.cpp b/src/core/hle/service/audio/hwopus.cpp
index 16a6deb7e..f1d81602c 100644
--- a/src/core/hle/service/audio/hwopus.cpp
+++ b/src/core/hle/service/audio/hwopus.cpp
@@ -50,8 +50,8 @@ public:
         Enabled,
     };
 
-    explicit OpusDecoderState(OpusDecoderPtr decoder_, s32 sample_rate_, u32 channel_count_)
-        : decoder{std::move(decoder_)}, sample_rate{sample_rate_}, channel_count{channel_count_} {}
+    explicit OpusDecoderState(OpusDecoderPtr decoder, u32 sample_rate, u32 channel_count)
+        : decoder{std::move(decoder)}, sample_rate{sample_rate}, channel_count{channel_count} {}
 
     // Decodes interleaved Opus packets. Optionally allows reporting time taken to
     // perform the decoding, as well as any relevant extra behavior.
@@ -113,16 +113,15 @@ private:
             return false;
         }
 
-        const auto* const frame = input.data() + sizeof(OpusPacketHeader);
+        const auto frame = input.data() + sizeof(OpusPacketHeader);
         const auto decoded_sample_count = opus_packet_get_nb_samples(
-            frame, static_cast<opus_int32>(input.size() - sizeof(OpusPacketHeader)), sample_rate);
-        const auto decoded_size =
-            static_cast<u32>(decoded_sample_count) * channel_count * sizeof(u16);
-        if (decoded_size > raw_output_sz) {
+            frame, static_cast<opus_int32>(input.size() - sizeof(OpusPacketHeader)),
+            static_cast<opus_int32>(sample_rate));
+        if (decoded_sample_count * channel_count * sizeof(u16) > raw_output_sz) {
             LOG_ERROR(
                 Audio,
                 "Decoded data does not fit into the output data, decoded_sz={}, raw_output_sz={}",
-                decoded_size, raw_output_sz);
+                decoded_sample_count * channel_count * sizeof(u16), raw_output_sz);
             return false;
         }
 
@@ -138,11 +137,11 @@ private:
         }
 
         const auto end_time = std::chrono::high_resolution_clock::now() - start_time;
-        sample_count = static_cast<u32>(out_sample_count);
+        sample_count = out_sample_count;
         consumed = static_cast<u32>(sizeof(OpusPacketHeader) + hdr.size);
         if (out_performance_time != nullptr) {
-            *out_performance_time = static_cast<u64>(
-                std::chrono::duration_cast<std::chrono::milliseconds>(end_time).count());
+            *out_performance_time =
+                std::chrono::duration_cast<std::chrono::milliseconds>(end_time).count();
         }
 
         return true;
@@ -155,7 +154,7 @@ private:
     }
 
     OpusDecoderPtr decoder;
-    s32 sample_rate;
+    u32 sample_rate;
     u32 channel_count;
 };
 
@@ -213,7 +212,7 @@ std::size_t WorkerBufferSize(u32 channel_count) {
     ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
     constexpr int num_streams = 1;
     const int num_stereo_streams = channel_count == 2 ? 1 : 0;
-    return static_cast<size_t>(opus_multistream_decoder_get_size(num_streams, num_stereo_streams));
+    return opus_multistream_decoder_get_size(num_streams, num_stereo_streams);
 }
 
 // Creates the mapping table that maps the input channels to the particular
@@ -245,7 +244,7 @@ void HwOpus::GetWorkBufferSize(Kernel::HLERequestContext& ctx) {
                "Invalid sample rate");
     ASSERT_MSG(channel_count == 1 || channel_count == 2, "Invalid channel count");
 
-    const auto worker_buffer_sz = static_cast<u32>(WorkerBufferSize(channel_count));
+    const u32 worker_buffer_sz = static_cast<u32>(WorkerBufferSize(channel_count));
     LOG_DEBUG(Audio, "worker_buffer_sz={}", worker_buffer_sz);
 
     IPC::ResponseBuilder rb{ctx, 3};
@@ -255,7 +254,7 @@ void HwOpus::GetWorkBufferSize(Kernel::HLERequestContext& ctx) {
 
 void HwOpus::OpenOpusDecoder(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
-    const auto sample_rate = rp.Pop<s32>();
+    const auto sample_rate = rp.Pop<u32>();
     const auto channel_count = rp.Pop<u32>();
     const auto buffer_sz = rp.Pop<u32>();
 
diff --git a/src/core/hle/service/bcat/backend/backend.h b/src/core/hle/service/bcat/backend/backend.h
index 1e5e93290..48bbbe66f 100644
--- a/src/core/hle/service/bcat/backend/backend.h
+++ b/src/core/hle/service/bcat/backend/backend.h
@@ -53,10 +53,10 @@ struct DeliveryCacheProgressImpl {
     ResultCode result = RESULT_SUCCESS;
     DirectoryName current_directory;
     FileName current_file;
-    u64 current_downloaded_bytes; ///< Bytes downloaded on current file.
-    u64 current_total_bytes;      ///< Bytes total on current file.
-    u64 total_downloaded_bytes;   ///< Bytes downloaded on overall download.
-    u64 total_bytes;              ///< Bytes total on overall download.
+    s64 current_downloaded_bytes; ///< Bytes downloaded on current file.
+    s64 current_total_bytes;      ///< Bytes total on current file.
+    s64 total_downloaded_bytes;   ///< Bytes downloaded on overall download.
+    s64 total_bytes;              ///< Bytes total on overall download.
     INSERT_PADDING_BYTES(
         0x198); ///< Appears to be unused in official code, possibly reserved for future use.
 };
diff --git a/src/core/hle/service/bcat/backend/boxcat.cpp b/src/core/hle/service/bcat/backend/boxcat.cpp
index e6cadf491..3b6f7498e 100644
--- a/src/core/hle/service/bcat/backend/boxcat.cpp
+++ b/src/core/hle/service/bcat/backend/boxcat.cpp
@@ -3,16 +3,7 @@
 // Refer to the license.txt file included.
 
 #include <fmt/ostream.h>
-
-#if defined(__GNUC__)
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wsign-conversion"
-#endif
 #include <httplib.h>
-#if defined(__GNUC__)
-#pragma GCC diagnostic pop
-#endif
-
 #include <mbedtls/sha256.h>
 #include <nlohmann/json.hpp>
 #include "common/hex_util.h"
diff --git a/src/core/hle/service/bcat/module.cpp b/src/core/hle/service/bcat/module.cpp
index 5a7e9f930..db0e06ca1 100644
--- a/src/core/hle/service/bcat/module.cpp
+++ b/src/core/hle/service/bcat/module.cpp
@@ -454,8 +454,7 @@ private:
         write_size = std::min<u64>(write_size, files.size());
         std::vector<DeliveryCacheDirectoryEntry> entries(write_size);
         std::transform(
-            files.begin(), files.begin() + static_cast<s64>(write_size), entries.begin(),
-            [](const auto& file) {
+            files.begin(), files.begin() + write_size, entries.begin(), [](const auto& file) {
                 FileName name{};
                 std::memcpy(name.data(), file->GetName().data(),
                             std::min(file->GetName().size(), name.size()));
diff --git a/src/core/hle/service/filesystem/fsp_srv.cpp b/src/core/hle/service/filesystem/fsp_srv.cpp
index 993686f1d..649128be4 100644
--- a/src/core/hle/service/filesystem/fsp_srv.cpp
+++ b/src/core/hle/service/filesystem/fsp_srv.cpp
@@ -94,8 +94,7 @@ private:
         }
 
         // Read the data from the Storage backend
-        const auto output = backend->ReadBytes(static_cast<u64>(length), static_cast<u64>(offset));
-
+        std::vector<u8> output = backend->ReadBytes(length, offset);
         // Write the data to memory
         ctx.WriteBuffer(output);
 
@@ -152,7 +151,7 @@ private:
         }
 
         // Read the data from the Storage backend
-        const auto output = backend->ReadBytes(static_cast<u64>(length), static_cast<u64>(offset));
+        std::vector<u8> output = backend->ReadBytes(length, offset);
 
         // Write the data to memory
         ctx.WriteBuffer(output);
@@ -195,8 +194,7 @@ private:
         // Write the data to the Storage backend
         const auto write_size =
             static_cast<std::size_t>(std::distance(data.begin(), data.begin() + length));
-        const std::size_t written =
-            backend->Write(data.data(), write_size, static_cast<u64>(offset));
+        const std::size_t written = backend->Write(data.data(), write_size, offset);
 
         ASSERT_MSG(static_cast<s64>(written) == length,
                    "Could not write all bytes to file (requested={:016X}, actual={:016X}).", length,
diff --git a/src/core/hle/service/hid/controllers/debug_pad.cpp b/src/core/hle/service/hid/controllers/debug_pad.cpp
index c2c1470a5..ad251ed4a 100644
--- a/src/core/hle/service/hid/controllers/debug_pad.cpp
+++ b/src/core/hle/service/hid/controllers/debug_pad.cpp
@@ -23,7 +23,7 @@ void Controller_DebugPad::OnRelease() {}
 
 void Controller_DebugPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                    std::size_t size) {
-    shared_memory.header.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+    shared_memory.header.timestamp = core_timing.GetCPUTicks();
     shared_memory.header.total_entry_count = 17;
 
     if (!IsControllerActivated()) {
@@ -33,11 +33,9 @@ void Controller_DebugPad::OnUpdate(const Core::Timing::CoreTiming& core_timing,
     }
     shared_memory.header.entry_count = 16;
 
-    const auto& last_entry =
-        shared_memory.pad_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    const auto& last_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
     shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry =
-        shared_memory.pad_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    auto& cur_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
 
     cur_entry.sampling_number = last_entry.sampling_number + 1;
     cur_entry.sampling_number2 = cur_entry.sampling_number;
diff --git a/src/core/hle/service/hid/controllers/gesture.cpp b/src/core/hle/service/hid/controllers/gesture.cpp
index 0618b2a05..b7b7bfeae 100644
--- a/src/core/hle/service/hid/controllers/gesture.cpp
+++ b/src/core/hle/service/hid/controllers/gesture.cpp
@@ -19,7 +19,7 @@ void Controller_Gesture::OnRelease() {}
 
 void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                   std::size_t size) {
-    shared_memory.header.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+    shared_memory.header.timestamp = core_timing.GetCPUTicks();
     shared_memory.header.total_entry_count = 17;
 
     if (!IsControllerActivated()) {
@@ -29,11 +29,9 @@ void Controller_Gesture::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
     }
     shared_memory.header.entry_count = 16;
 
-    const auto& last_entry =
-        shared_memory.gesture_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    const auto& last_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
     shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry =
-        shared_memory.gesture_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    auto& cur_entry = shared_memory.gesture_states[shared_memory.header.last_entry_index];
 
     cur_entry.sampling_number = last_entry.sampling_number + 1;
     cur_entry.sampling_number2 = cur_entry.sampling_number;
diff --git a/src/core/hle/service/hid/controllers/keyboard.cpp b/src/core/hle/service/hid/controllers/keyboard.cpp
index 0624be316..59b694cd4 100644
--- a/src/core/hle/service/hid/controllers/keyboard.cpp
+++ b/src/core/hle/service/hid/controllers/keyboard.cpp
@@ -21,7 +21,7 @@ void Controller_Keyboard::OnRelease() {}
 
 void Controller_Keyboard::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                    std::size_t size) {
-    shared_memory.header.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+    shared_memory.header.timestamp = core_timing.GetCPUTicks();
     shared_memory.header.total_entry_count = 17;
 
     if (!IsControllerActivated()) {
@@ -31,11 +31,9 @@ void Controller_Keyboard::OnUpdate(const Core::Timing::CoreTiming& core_timing,
     }
     shared_memory.header.entry_count = 16;
 
-    const auto& last_entry =
-        shared_memory.pad_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    const auto& last_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
     shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry =
-        shared_memory.pad_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    auto& cur_entry = shared_memory.pad_states[shared_memory.header.last_entry_index];
 
     cur_entry.sampling_number = last_entry.sampling_number + 1;
     cur_entry.sampling_number2 = cur_entry.sampling_number;
diff --git a/src/core/hle/service/hid/controllers/mouse.cpp b/src/core/hle/service/hid/controllers/mouse.cpp
index 10e2373bc..ac40989c5 100644
--- a/src/core/hle/service/hid/controllers/mouse.cpp
+++ b/src/core/hle/service/hid/controllers/mouse.cpp
@@ -19,7 +19,7 @@ void Controller_Mouse::OnRelease() {}
 
 void Controller_Mouse::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                 std::size_t size) {
-    shared_memory.header.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+    shared_memory.header.timestamp = core_timing.GetCPUTicks();
     shared_memory.header.total_entry_count = 17;
 
     if (!IsControllerActivated()) {
@@ -29,11 +29,9 @@ void Controller_Mouse::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
     }
     shared_memory.header.entry_count = 16;
 
-    auto& last_entry =
-        shared_memory.mouse_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    auto& last_entry = shared_memory.mouse_states[shared_memory.header.last_entry_index];
     shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry =
-        shared_memory.mouse_states[static_cast<u64>(shared_memory.header.last_entry_index)];
+    auto& cur_entry = shared_memory.mouse_states[shared_memory.header.last_entry_index];
 
     cur_entry.sampling_number = last_entry.sampling_number + 1;
     cur_entry.sampling_number2 = cur_entry.sampling_number;
diff --git a/src/core/hle/service/hid/controllers/npad.cpp b/src/core/hle/service/hid/controllers/npad.cpp
index 2422c0190..e311bc18c 100644
--- a/src/core/hle/service/hid/controllers/npad.cpp
+++ b/src/core/hle/service/hid/controllers/npad.cpp
@@ -341,29 +341,26 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
     }
     for (std::size_t i = 0; i < shared_memory_entries.size(); i++) {
         auto& npad = shared_memory_entries[i];
-        const std::array controller_npads{
-            &npad.main_controller_states,
-            &npad.handheld_states,
-            &npad.dual_states,
-            &npad.left_joy_states,
-            &npad.right_joy_states,
-            &npad.pokeball_states,
-            &npad.libnx,
-        };
+        const std::array<NPadGeneric*, 7> controller_npads{&npad.main_controller_states,
+                                                           &npad.handheld_states,
+                                                           &npad.dual_states,
+                                                           &npad.left_joy_states,
+                                                           &npad.right_joy_states,
+                                                           &npad.pokeball_states,
+                                                           &npad.libnx};
 
         for (auto* main_controller : controller_npads) {
             main_controller->common.entry_count = 16;
             main_controller->common.total_entry_count = 17;
 
             const auto& last_entry =
-                main_controller->npad[static_cast<u64>(main_controller->common.last_entry_index)];
+                main_controller->npad[main_controller->common.last_entry_index];
 
-            main_controller->common.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+            main_controller->common.timestamp = core_timing.GetCPUTicks();
             main_controller->common.last_entry_index =
                 (main_controller->common.last_entry_index + 1) % 17;
 
-            auto& cur_entry =
-                main_controller->npad[static_cast<u64>(main_controller->common.last_entry_index)];
+            auto& cur_entry = main_controller->npad[main_controller->common.last_entry_index];
 
             cur_entry.timestamp = last_entry.timestamp + 1;
             cur_entry.timestamp2 = cur_entry.timestamp;
@@ -374,29 +371,22 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
         if (controller_type == NPadControllerType::None || !connected_controllers[i].is_connected) {
             continue;
         }
-        const auto npad_index = static_cast<u32>(i);
+        const u32 npad_index = static_cast<u32>(i);
 
         RequestPadStateUpdate(npad_index);
         auto& pad_state = npad_pad_states[npad_index];
 
         auto& main_controller =
-            npad.main_controller_states
-                .npad[static_cast<u64>(npad.main_controller_states.common.last_entry_index)];
+            npad.main_controller_states.npad[npad.main_controller_states.common.last_entry_index];
         auto& handheld_entry =
-            npad.handheld_states
-                .npad[static_cast<u64>(npad.handheld_states.common.last_entry_index)];
-        auto& dual_entry =
-            npad.dual_states.npad[static_cast<u64>(npad.dual_states.common.last_entry_index)];
-        auto& left_entry =
-            npad.left_joy_states
-                .npad[static_cast<u64>(npad.left_joy_states.common.last_entry_index)];
+            npad.handheld_states.npad[npad.handheld_states.common.last_entry_index];
+        auto& dual_entry = npad.dual_states.npad[npad.dual_states.common.last_entry_index];
+        auto& left_entry = npad.left_joy_states.npad[npad.left_joy_states.common.last_entry_index];
         auto& right_entry =
-            npad.right_joy_states
-                .npad[static_cast<u64>(npad.right_joy_states.common.last_entry_index)];
+            npad.right_joy_states.npad[npad.right_joy_states.common.last_entry_index];
         auto& pokeball_entry =
-            npad.pokeball_states
-                .npad[static_cast<u64>(npad.pokeball_states.common.last_entry_index)];
-        auto& libnx_entry = npad.libnx.npad[static_cast<u64>(npad.libnx.common.last_entry_index)];
+            npad.pokeball_states.npad[npad.pokeball_states.common.last_entry_index];
+        auto& libnx_entry = npad.libnx.npad[npad.libnx.common.last_entry_index];
 
         libnx_entry.connection_status.raw = 0;
         libnx_entry.connection_status.IsConnected.Assign(1);
@@ -510,14 +500,13 @@ void Controller_NPad::OnMotionUpdate(const Core::Timing::CoreTiming& core_timing
             sixaxis_sensor->common.total_entry_count = 17;
 
             const auto& last_entry =
-                sixaxis_sensor->sixaxis[static_cast<u64>(sixaxis_sensor->common.last_entry_index)];
+                sixaxis_sensor->sixaxis[sixaxis_sensor->common.last_entry_index];
 
-            sixaxis_sensor->common.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+            sixaxis_sensor->common.timestamp = core_timing.GetCPUTicks();
             sixaxis_sensor->common.last_entry_index =
                 (sixaxis_sensor->common.last_entry_index + 1) % 17;
 
-            auto& cur_entry =
-                sixaxis_sensor->sixaxis[static_cast<u64>(sixaxis_sensor->common.last_entry_index)];
+            auto& cur_entry = sixaxis_sensor->sixaxis[sixaxis_sensor->common.last_entry_index];
 
             cur_entry.timestamp = last_entry.timestamp + 1;
             cur_entry.timestamp2 = cur_entry.timestamp;
@@ -540,21 +529,17 @@ void Controller_NPad::OnMotionUpdate(const Core::Timing::CoreTiming& core_timing
         }
 
         auto& full_sixaxis_entry =
-            npad.sixaxis_full.sixaxis[static_cast<u64>(npad.sixaxis_full.common.last_entry_index)];
+            npad.sixaxis_full.sixaxis[npad.sixaxis_full.common.last_entry_index];
         auto& handheld_sixaxis_entry =
-            npad.sixaxis_handheld
-                .sixaxis[static_cast<u64>(npad.sixaxis_handheld.common.last_entry_index)];
+            npad.sixaxis_handheld.sixaxis[npad.sixaxis_handheld.common.last_entry_index];
         auto& dual_left_sixaxis_entry =
-            npad.sixaxis_dual_left
-                .sixaxis[static_cast<u64>(npad.sixaxis_dual_left.common.last_entry_index)];
+            npad.sixaxis_dual_left.sixaxis[npad.sixaxis_dual_left.common.last_entry_index];
         auto& dual_right_sixaxis_entry =
-            npad.sixaxis_dual_right
-                .sixaxis[static_cast<u64>(npad.sixaxis_dual_right.common.last_entry_index)];
+            npad.sixaxis_dual_right.sixaxis[npad.sixaxis_dual_right.common.last_entry_index];
         auto& left_sixaxis_entry =
-            npad.sixaxis_left.sixaxis[static_cast<u64>(npad.sixaxis_left.common.last_entry_index)];
+            npad.sixaxis_left.sixaxis[npad.sixaxis_left.common.last_entry_index];
         auto& right_sixaxis_entry =
-            npad.sixaxis_right
-                .sixaxis[static_cast<u64>(npad.sixaxis_right.common.last_entry_index)];
+            npad.sixaxis_right.sixaxis[npad.sixaxis_right.common.last_entry_index];
 
         switch (controller_type) {
         case NPadControllerType::None:
diff --git a/src/core/hle/service/hid/controllers/stubbed.cpp b/src/core/hle/service/hid/controllers/stubbed.cpp
index f9cb61667..e7483bfa2 100644
--- a/src/core/hle/service/hid/controllers/stubbed.cpp
+++ b/src/core/hle/service/hid/controllers/stubbed.cpp
@@ -22,12 +22,12 @@ void Controller_Stubbed::OnUpdate(const Core::Timing::CoreTiming& core_timing, u
         return;
     }
 
-    const CommonHeader header{
-        .timestamp = static_cast<s64>(core_timing.GetCPUTicks()),
-        .total_entry_count = 17,
-        .last_entry_index = 0,
-        .entry_count = 0,
-    };
+    CommonHeader header{};
+    header.timestamp = core_timing.GetCPUTicks();
+    header.total_entry_count = 17;
+    header.entry_count = 0;
+    header.last_entry_index = 0;
+
     std::memcpy(data + common_offset, &header, sizeof(CommonHeader));
 }
 
diff --git a/src/core/hle/service/hid/controllers/touchscreen.cpp b/src/core/hle/service/hid/controllers/touchscreen.cpp
index 06f4134a2..0df395e85 100644
--- a/src/core/hle/service/hid/controllers/touchscreen.cpp
+++ b/src/core/hle/service/hid/controllers/touchscreen.cpp
@@ -22,7 +22,7 @@ void Controller_Touchscreen::OnRelease() {}
 
 void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                       std::size_t size) {
-    shared_memory.header.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+    shared_memory.header.timestamp = core_timing.GetCPUTicks();
     shared_memory.header.total_entry_count = 17;
 
     if (!IsControllerActivated()) {
@@ -33,12 +33,9 @@ void Controller_Touchscreen::OnUpdate(const Core::Timing::CoreTiming& core_timin
     shared_memory.header.entry_count = 16;
 
     const auto& last_entry =
-        shared_memory
-            .shared_memory_entries[static_cast<u64>(shared_memory.header.last_entry_index)];
+        shared_memory.shared_memory_entries[shared_memory.header.last_entry_index];
     shared_memory.header.last_entry_index = (shared_memory.header.last_entry_index + 1) % 17;
-    auto& cur_entry =
-        shared_memory
-            .shared_memory_entries[static_cast<u64>(shared_memory.header.last_entry_index)];
+    auto& cur_entry = shared_memory.shared_memory_entries[shared_memory.header.last_entry_index];
 
     cur_entry.sampling_number = last_entry.sampling_number + 1;
     cur_entry.sampling_number2 = cur_entry.sampling_number;
diff --git a/src/core/hle/service/hid/controllers/touchscreen.h b/src/core/hle/service/hid/controllers/touchscreen.h
index 746acbd1c..4d9042adc 100644
--- a/src/core/hle/service/hid/controllers/touchscreen.h
+++ b/src/core/hle/service/hid/controllers/touchscreen.h
@@ -69,6 +69,6 @@ private:
     TouchScreenSharedMemory shared_memory{};
     std::unique_ptr<Input::TouchDevice> touch_device;
     std::unique_ptr<Input::TouchDevice> touch_btn_device;
-    u64_le last_touch{};
+    s64_le last_touch{};
 };
 } // namespace Service::HID
diff --git a/src/core/hle/service/hid/controllers/xpad.cpp b/src/core/hle/service/hid/controllers/xpad.cpp
index 60417abb8..2503ef241 100644
--- a/src/core/hle/service/hid/controllers/xpad.cpp
+++ b/src/core/hle/service/hid/controllers/xpad.cpp
@@ -20,7 +20,7 @@ void Controller_XPad::OnRelease() {}
 void Controller_XPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* data,
                                std::size_t size) {
     for (auto& xpad_entry : shared_memory.shared_memory_entries) {
-        xpad_entry.header.timestamp = static_cast<s64>(core_timing.GetCPUTicks());
+        xpad_entry.header.timestamp = core_timing.GetCPUTicks();
         xpad_entry.header.total_entry_count = 17;
 
         if (!IsControllerActivated()) {
@@ -30,11 +30,9 @@ void Controller_XPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8*
         }
         xpad_entry.header.entry_count = 16;
 
-        const auto& last_entry =
-            xpad_entry.pad_states[static_cast<u64>(xpad_entry.header.last_entry_index)];
+        const auto& last_entry = xpad_entry.pad_states[xpad_entry.header.last_entry_index];
         xpad_entry.header.last_entry_index = (xpad_entry.header.last_entry_index + 1) % 17;
-        auto& cur_entry =
-            xpad_entry.pad_states[static_cast<u64>(xpad_entry.header.last_entry_index)];
+        auto& cur_entry = xpad_entry.pad_states[xpad_entry.header.last_entry_index];
 
         cur_entry.sampling_number = last_entry.sampling_number + 1;
         cur_entry.sampling_number2 = cur_entry.sampling_number;
diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp
index 9ad5bbf0d..d8cd10e31 100644
--- a/src/core/hle/service/ldr/ldr.cpp
+++ b/src/core/hle/service/ldr/ldr.cpp
@@ -23,7 +23,7 @@ namespace Service::LDR {
 
 constexpr ResultCode ERROR_INSUFFICIENT_ADDRESS_SPACE{ErrorModule::RO, 2};
 
-[[maybe_unused]] constexpr ResultCode ERROR_INVALID_MEMORY_STATE{ErrorModule::Loader, 51};
+constexpr ResultCode ERROR_INVALID_MEMORY_STATE{ErrorModule::Loader, 51};
 constexpr ResultCode ERROR_INVALID_NRO{ErrorModule::Loader, 52};
 constexpr ResultCode ERROR_INVALID_NRR{ErrorModule::Loader, 53};
 constexpr ResultCode ERROR_MISSING_NRR_HASH{ErrorModule::Loader, 54};
@@ -33,7 +33,7 @@ constexpr ResultCode ERROR_ALREADY_LOADED{ErrorModule::Loader, 57};
 constexpr ResultCode ERROR_INVALID_ALIGNMENT{ErrorModule::Loader, 81};
 constexpr ResultCode ERROR_INVALID_SIZE{ErrorModule::Loader, 82};
 constexpr ResultCode ERROR_INVALID_NRO_ADDRESS{ErrorModule::Loader, 84};
-[[maybe_unused]] constexpr ResultCode ERROR_INVALID_NRR_ADDRESS{ErrorModule::Loader, 85};
+constexpr ResultCode ERROR_INVALID_NRR_ADDRESS{ErrorModule::Loader, 85};
 constexpr ResultCode ERROR_NOT_INITIALIZED{ErrorModule::Loader, 87};
 
 constexpr std::size_t MAXIMUM_LOADED_RO{0x40};
diff --git a/src/core/hle/service/mii/manager.cpp b/src/core/hle/service/mii/manager.cpp
index 1b75c2ebe..d73b90015 100644
--- a/src/core/hle/service/mii/manager.cpp
+++ b/src/core/hle/service/mii/manager.cpp
@@ -240,10 +240,10 @@ MiiStoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Commo
     bf.eye_type.Assign(
         eye_type_info.values[GetRandomValue<std::size_t>(eye_type_info.values_count)]);
 
-    const auto eye_rotate_1{gender != Gender::Male ? 4U : 2U};
-    const auto eye_rotate_2{gender != Gender::Male ? 3U : 4U};
-    const auto eye_rotate_offset{32U - EyeRotateLookup[eye_rotate_1] + eye_rotate_2};
-    const auto eye_rotate{32U - EyeRotateLookup[bf.eye_type]};
+    const auto eye_rotate_1{gender != Gender::Male ? 4 : 2};
+    const auto eye_rotate_2{gender != Gender::Male ? 3 : 4};
+    const auto eye_rotate_offset{32 - EyeRotateLookup[eye_rotate_1] + eye_rotate_2};
+    const auto eye_rotate{32 - EyeRotateLookup[bf.eye_type]};
 
     bf.eye_color.Assign(
         EyeColorLookup[eye_color_info
@@ -257,11 +257,11 @@ MiiStoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Commo
     bf.eyebrow_type.Assign(
         eyebrow_type_info.values[GetRandomValue<std::size_t>(eyebrow_type_info.values_count)]);
 
-    const auto eyebrow_rotate_1{race == Race::Asian ? 6U : 0U};
-    const auto eyebrow_y{race == Race::Asian ? 9U : 10U};
-    const auto eyebrow_rotate_offset{32U - EyebrowRotateLookup[eyebrow_rotate_1] + 6};
+    const auto eyebrow_rotate_1{race == Race::Asian ? 6 : 0};
+    const auto eyebrow_y{race == Race::Asian ? 9 : 10};
+    const auto eyebrow_rotate_offset{32 - EyebrowRotateLookup[eyebrow_rotate_1] + 6};
     const auto eyebrow_rotate{
-        32U - EyebrowRotateLookup[static_cast<std::size_t>(bf.eyebrow_type.Value())]};
+        32 - EyebrowRotateLookup[static_cast<std::size_t>(bf.eyebrow_type.Value())]};
 
     bf.eyebrow_color.Assign(bf.hair_color);
     bf.eyebrow_scale.Assign(4);
@@ -270,14 +270,14 @@ MiiStoreData BuildRandomStoreData(Age age, Gender gender, Race race, const Commo
     bf.eyebrow_x.Assign(2);
     bf.eyebrow_y.Assign(axis_y + eyebrow_y);
 
-    const auto nose_scale{gender == Gender::Female ? 3U : 4U};
+    const auto nose_scale{gender == Gender::Female ? 3 : 4};
 
     bf.nose_type.Assign(
         nose_type_info.values[GetRandomValue<std::size_t>(nose_type_info.values_count)]);
     bf.nose_scale.Assign(nose_scale);
     bf.nose_y.Assign(axis_y + 9);
 
-    const auto mouth_color{gender == Gender::Female ? GetRandomValue<u32>(4) : 0U};
+    const auto mouth_color{gender == Gender::Female ? GetRandomValue<int>(4) : 0};
 
     bf.mouth_type.Assign(
         mouth_type_info.values[GetRandomValue<std::size_t>(mouth_type_info.values_count)]);
diff --git a/src/core/hle/service/nfp/nfp.cpp b/src/core/hle/service/nfp/nfp.cpp
index 0dd23ec9e..a0469ffbd 100644
--- a/src/core/hle/service/nfp/nfp.cpp
+++ b/src/core/hle/service/nfp/nfp.cpp
@@ -217,7 +217,7 @@ private:
         const auto& amiibo = nfp_interface.GetAmiiboBuffer();
         const TagInfo tag_info{
             .uuid = amiibo.uuid,
-            .uuid_length = static_cast<u8>(amiibo.uuid.size()),
+            .uuid_length = static_cast<u8>(tag_info.uuid.size()),
             .padding_1 = {},
             .protocol = 1, // TODO(ogniK): Figure out actual values
             .tag_type = 2,
diff --git a/src/core/hle/service/ns/ns.cpp b/src/core/hle/service/ns/ns.cpp
index 3edee6303..58ee1f712 100644
--- a/src/core/hle/service/ns/ns.cpp
+++ b/src/core/hle/service/ns/ns.cpp
@@ -368,7 +368,7 @@ ResultVal<u8> IApplicationManagerInterface::GetApplicationDesiredLanguage(
 
     // Get language code from settings
     const auto language_code =
-        Set::GetLanguageCodeFromIndex(static_cast<u32>(Settings::values.language_index.GetValue()));
+        Set::GetLanguageCodeFromIndex(Settings::values.language_index.GetValue());
 
     // Convert to application language, get priority list
     const auto application_language = ConvertToApplicationLanguage(language_code);
diff --git a/src/core/hle/service/ns/pl_u.cpp b/src/core/hle/service/ns/pl_u.cpp
index 5ccec2637..40838a225 100644
--- a/src/core/hle/service/ns/pl_u.cpp
+++ b/src/core/hle/service/ns/pl_u.cpp
@@ -50,9 +50,19 @@ constexpr std::array<std::pair<FontArchives, const char*>, 7> SHARED_FONTS{
     std::make_pair(FontArchives::Extension, "nintendo_ext2_003.bfttf"),
 };
 
+constexpr std::array<const char*, 7> SHARED_FONTS_TTF{
+    "FontStandard.ttf",
+    "FontChineseSimplified.ttf",
+    "FontExtendedChineseSimplified.ttf",
+    "FontChineseTraditional.ttf",
+    "FontKorean.ttf",
+    "FontNintendoExtended.ttf",
+    "FontNintendoExtended2.ttf",
+};
+
 // The below data is specific to shared font data dumped from Switch on f/w 2.2
 // Virtual address and offsets/sizes likely will vary by dump
-[[maybe_unused]] constexpr VAddr SHARED_FONT_MEM_VADDR{0x00000009d3016000ULL};
+constexpr VAddr SHARED_FONT_MEM_VADDR{0x00000009d3016000ULL};
 constexpr u32 EXPECTED_RESULT{0x7f9a0218}; // What we expect the decrypted bfttf first 4 bytes to be
 constexpr u32 EXPECTED_MAGIC{0x36f81a1e};  // What we expect the encrypted bfttf first 4 bytes to be
 constexpr u64 SHARED_FONT_MEM_SIZE{0x1100000};
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp b/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
index 3a5bebff3..f2529a12e 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
@@ -155,7 +155,7 @@ u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& ou
 
     const auto object{nvmap_dev->GetObject(params.nvmap_handle)};
     if (!object) {
-        LOG_ERROR(Service_NVDRV, "invalid nvmap_handle={:X}", params.nvmap_handle);
+        LOG_CRITICAL(Service_NVDRV, "invalid nvmap_handle={:X}", params.nvmap_handle);
         std::memcpy(output.data(), &params, output.size());
         return NvErrCodes::InvalidInput;
     }
@@ -167,24 +167,21 @@ u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& ou
     auto& gpu = system.GPU();
 
     u64 page_size{params.page_size};
-    if (page_size == 0) {
+    if (!page_size) {
         page_size = object->align;
     }
 
     if ((params.flags & AddressSpaceFlags::Remap) != AddressSpaceFlags::None) {
-        const auto buffer_map = FindBufferMap(static_cast<GPUVAddr>(params.offset));
-
-        if (buffer_map) {
-            const auto cpu_addr{
-                static_cast<VAddr>(buffer_map->CpuAddr() + static_cast<u64>(params.buffer_offset))};
+        if (const auto buffer_map{FindBufferMap(params.offset)}; buffer_map) {
+            const auto cpu_addr{static_cast<VAddr>(buffer_map->CpuAddr() + params.buffer_offset)};
             const auto gpu_addr{static_cast<GPUVAddr>(params.offset + params.buffer_offset)};
 
             if (!gpu.MemoryManager().Map(cpu_addr, gpu_addr, params.mapping_size)) {
-                LOG_ERROR(Service_NVDRV,
-                          "Remap failed, flags={:X}, nvmap_handle={:X}, buffer_offset={}, "
-                          "mapping_size = {}, offset={}",
-                          params.flags, params.nvmap_handle, params.buffer_offset,
-                          params.mapping_size, params.offset);
+                LOG_CRITICAL(Service_NVDRV,
+                             "remap failed, flags={:X}, nvmap_handle={:X}, buffer_offset={}, "
+                             "mapping_size = {}, offset={}",
+                             params.flags, params.nvmap_handle, params.buffer_offset,
+                             params.mapping_size, params.offset);
 
                 std::memcpy(output.data(), &params, output.size());
                 return NvErrCodes::InvalidInput;
@@ -193,7 +190,7 @@ u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& ou
             std::memcpy(output.data(), &params, output.size());
             return NvErrCodes::Success;
         } else {
-            LOG_ERROR(Service_NVDRV, "Address not mapped. offset={}", params.offset);
+            LOG_CRITICAL(Service_NVDRV, "address not mapped offset={}", params.offset);
 
             std::memcpy(output.data(), &params, output.size());
             return NvErrCodes::InvalidInput;
@@ -203,27 +200,25 @@ u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& ou
     // We can only map objects that have already been assigned a CPU address.
     ASSERT(object->status == nvmap::Object::Status::Allocated);
 
-    const auto physical_address{object->addr + static_cast<VAddr>(params.buffer_offset)};
+    const auto physical_address{object->addr + params.buffer_offset};
     u64 size{params.mapping_size};
-    if (size == 0) {
+    if (!size) {
         size = object->size;
     }
 
     const bool is_alloc{(params.flags & AddressSpaceFlags::FixedOffset) == AddressSpaceFlags::None};
     if (is_alloc) {
-        params.offset =
-            static_cast<s64>(gpu.MemoryManager().MapAllocate(physical_address, size, page_size));
+        params.offset = gpu.MemoryManager().MapAllocate(physical_address, size, page_size);
     } else {
-        params.offset = static_cast<s64>(
-            gpu.MemoryManager().Map(physical_address, static_cast<GPUVAddr>(params.offset), size));
+        params.offset = gpu.MemoryManager().Map(physical_address, params.offset, size);
     }
 
     auto result{NvErrCodes::Success};
-    if (params.offset == 0) {
-        LOG_ERROR(Service_NVDRV, "Failed to map size={}", size);
+    if (!params.offset) {
+        LOG_CRITICAL(Service_NVDRV, "failed to map size={}", size);
         result = NvErrCodes::InvalidInput;
     } else {
-        AddBufferMap(static_cast<GPUVAddr>(params.offset), size, physical_address, is_alloc);
+        AddBufferMap(params.offset, size, physical_address, is_alloc);
     }
 
     std::memcpy(output.data(), &params, output.size());
@@ -234,13 +229,12 @@ u32 nvhost_as_gpu::UnmapBuffer(const std::vector<u8>& input, std::vector<u8>& ou
     IoctlUnmapBuffer params{};
     std::memcpy(&params, input.data(), input.size());
 
-    const auto offset = static_cast<GPUVAddr>(params.offset);
-    LOG_DEBUG(Service_NVDRV, "called, offset=0x{:X}", offset);
+    LOG_DEBUG(Service_NVDRV, "called, offset=0x{:X}", params.offset);
 
-    if (const auto size{RemoveBufferMap(offset)}; size) {
-        system.GPU().MemoryManager().Unmap(offset, *size);
+    if (const auto size{RemoveBufferMap(params.offset)}; size) {
+        system.GPU().MemoryManager().Unmap(params.offset, *size);
     } else {
-        LOG_ERROR(Service_NVDRV, "invalid offset=0x{:X}", offset);
+        LOG_ERROR(Service_NVDRV, "invalid offset=0x{:X}", params.offset);
     }
 
     std::memcpy(output.data(), &params, output.size());
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
index 07d851d0e..b27ee0502 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
@@ -63,7 +63,8 @@ u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>&
         return NvResult::BadParameter;
     }
 
-    const u32 event_id = params.value & 0x00FF;
+    u32 event_id = params.value & 0x00FF;
+
     if (event_id >= MaxNvEvents) {
         std::memcpy(output.data(), &params, sizeof(params));
         return NvResult::BadParameter;
@@ -77,17 +78,16 @@ u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>&
         event.writable->Signal();
         return NvResult::Success;
     }
-
     auto lock = gpu.LockSync();
     const u32 current_syncpoint_value = gpu.GetSyncpointValue(params.syncpt_id);
-    const s32 diff = static_cast<s32>(current_syncpoint_value - params.threshold);
+    const s32 diff = current_syncpoint_value - params.threshold;
     if (diff >= 0) {
         event.writable->Signal();
         params.value = current_syncpoint_value;
         std::memcpy(output.data(), &params, sizeof(params));
         return NvResult::Success;
     }
-    const u32 target_value = current_syncpoint_value - static_cast<u32>(diff);
+    const u32 target_value = current_syncpoint_value - diff;
 
     if (!is_async) {
         params.value = 0;
@@ -98,7 +98,7 @@ u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>&
         return NvResult::Timeout;
     }
 
-    const EventState status = events_interface.status[event_id];
+    EventState status = events_interface.status[event_id];
     if (event_id < MaxNvEvents || status == EventState::Free || status == EventState::Registered) {
         events_interface.SetEventStatus(event_id, EventState::Waiting);
         events_interface.assigned_syncpt[event_id] = params.syncpt_id;
@@ -114,7 +114,7 @@ u32 nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector<u8>&
         if (!is_async && ctrl.fresh_call) {
             ctrl.must_delay = true;
             ctrl.timeout = params.timeout;
-            ctrl.event_id = static_cast<s32>(event_id);
+            ctrl.event_id = event_id;
             return NvResult::Timeout;
         }
         std::memcpy(output.data(), &params, sizeof(params));
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp b/src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp
index 5e51b37be..f1966ac0e 100644
--- a/src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvhost_gpu.cpp
@@ -127,7 +127,7 @@ u32 nvhost_gpu::AllocGPFIFOEx2(const std::vector<u8>& input, std::vector<u8>& ou
                 params.unk3);
 
     auto& gpu = system.GPU();
-    params.fence_out.id = static_cast<s32>(assigned_syncpoints);
+    params.fence_out.id = assigned_syncpoints;
     params.fence_out.value = gpu.GetSyncpointValue(assigned_syncpoints);
     assigned_syncpoints++;
     std::memcpy(output.data(), &params, output.size());
@@ -166,8 +166,7 @@ u32 nvhost_gpu::SubmitGPFIFO(const std::vector<u8>& input, std::vector<u8>& outp
     UNIMPLEMENTED_IF(params.flags.add_increment.Value() != 0);
 
     auto& gpu = system.GPU();
-    const u32 current_syncpoint_value =
-        gpu.GetSyncpointValue(static_cast<u32>(params.fence_out.id));
+    u32 current_syncpoint_value = gpu.GetSyncpointValue(params.fence_out.id);
     if (params.flags.increment.Value()) {
         params.fence_out.value += current_syncpoint_value;
     } else {
@@ -201,8 +200,7 @@ u32 nvhost_gpu::KickoffPB(const std::vector<u8>& input, std::vector<u8>& output,
     UNIMPLEMENTED_IF(params.flags.add_increment.Value() != 0);
 
     auto& gpu = system.GPU();
-    const u32 current_syncpoint_value =
-        gpu.GetSyncpointValue(static_cast<u32>(params.fence_out.id));
+    u32 current_syncpoint_value = gpu.GetSyncpointValue(params.fence_out.id);
     if (params.flags.increment.Value()) {
         params.fence_out.value += current_syncpoint_value;
     } else {
diff --git a/src/core/hle/service/nvdrv/interface.cpp b/src/core/hle/service/nvdrv/interface.cpp
index 2f4f73487..88fbfa9b0 100644
--- a/src/core/hle/service/nvdrv/interface.cpp
+++ b/src/core/hle/service/nvdrv/interface.cpp
@@ -61,9 +61,9 @@ void NVDRV::IoctlBase(Kernel::HLERequestContext& ctx, IoctlVersion version) {
     if (ctrl.must_delay) {
         ctrl.fresh_call = false;
         ctx.SleepClientThread(
-            "NVServices::DelayedResponse", static_cast<u64>(ctrl.timeout),
-            [=, this](std::shared_ptr<Kernel::Thread>, Kernel::HLERequestContext& ctx_,
-                      Kernel::ThreadWakeupReason) {
+            "NVServices::DelayedResponse", ctrl.timeout,
+            [=, this](std::shared_ptr<Kernel::Thread> thread, Kernel::HLERequestContext& ctx_,
+                      Kernel::ThreadWakeupReason reason) {
                 IoctlCtrl ctrl2{ctrl};
                 std::vector<u8> tmp_output = output;
                 std::vector<u8> tmp_output2 = output2;
@@ -77,7 +77,7 @@ void NVDRV::IoctlBase(Kernel::HLERequestContext& ctx, IoctlVersion version) {
                 rb.Push(RESULT_SUCCESS);
                 rb.Push(ioctl_result);
             },
-            nvdrv->GetEventWriteable(static_cast<u32>(ctrl.event_id)));
+            nvdrv->GetEventWriteable(ctrl.event_id));
     } else {
         ctx.WriteBuffer(output);
         if (version == IoctlVersion::Version3) {
diff --git a/src/core/hle/service/nvflinger/nvflinger.cpp b/src/core/hle/service/nvflinger/nvflinger.cpp
index 621a429bc..c64673dba 100644
--- a/src/core/hle/service/nvflinger/nvflinger.cpp
+++ b/src/core/hle/service/nvflinger/nvflinger.cpp
@@ -247,7 +247,7 @@ void NVFlinger::Compose() {
         guard->unlock();
         for (u32 fence_id = 0; fence_id < multi_fence.num_fences; fence_id++) {
             const auto& fence = multi_fence.fences[fence_id];
-            gpu.WaitFence(static_cast<u32>(fence.id), fence.value);
+            gpu.WaitFence(fence.id, fence.value);
         }
         guard->lock();
 
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index bc7476a5b..ba9159ee0 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -80,10 +80,10 @@ namespace Service {
                                                        std::string_view port_name,
                                                        const u32* cmd_buff) {
     // Number of params == bits 0-5 + bits 6-11
-    const u32 num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
+    int num_params = (cmd_buff[0] & 0x3F) + ((cmd_buff[0] >> 6) & 0x3F);
 
     std::string function_string = fmt::format("function '{}': port={}", name, port_name);
-    for (u32 i = 1; i <= num_params; ++i) {
+    for (int i = 1; i <= num_params; ++i) {
         function_string += fmt::format(", cmd_buff[{}]=0x{:X}", i, cmd_buff[i]);
     }
     return function_string;
diff --git a/src/core/hle/service/set/set.cpp b/src/core/hle/service/set/set.cpp
index 82a7aecc7..e64777668 100644
--- a/src/core/hle/service/set/set.cpp
+++ b/src/core/hle/service/set/set.cpp
@@ -91,8 +91,7 @@ void GetAvailableLanguageCodesImpl(Kernel::HLERequestContext& ctx, std::size_t m
 }
 
 void GetKeyCodeMapImpl(Kernel::HLERequestContext& ctx) {
-    const auto language_code =
-        available_language_codes[static_cast<u32>(Settings::values.language_index.GetValue())];
+    const auto language_code = available_language_codes[Settings::values.language_index.GetValue()];
     const auto key_code =
         std::find_if(language_to_layout.cbegin(), language_to_layout.cend(),
                      [=](const auto& element) { return element.first == language_code; });
@@ -168,8 +167,7 @@ void SET::GetLanguageCode(Kernel::HLERequestContext& ctx) {
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(RESULT_SUCCESS);
-    rb.PushEnum(
-        available_language_codes[static_cast<u32>(Settings::values.language_index.GetValue())]);
+    rb.PushEnum(available_language_codes[Settings::values.language_index.GetValue()]);
 }
 
 void SET::GetRegionCode(Kernel::HLERequestContext& ctx) {
diff --git a/src/core/hle/service/sockets/bsd.cpp b/src/core/hle/service/sockets/bsd.cpp
index 7cb70064c..a74be9370 100644
--- a/src/core/hle/service/sockets/bsd.cpp
+++ b/src/core/hle/service/sockets/bsd.cpp
@@ -437,9 +437,9 @@ std::pair<s32, Errno> BSD::SocketImpl(Domain domain, Type type, Protocol protoco
         UNIMPLEMENTED_MSG("SOCK_RAW errno management");
     }
 
-    [[maybe_unused]] const bool unk_flag = (static_cast<u32>(type) & 0x20000000U) != 0;
+    [[maybe_unused]] const bool unk_flag = (static_cast<u32>(type) & 0x20000000) != 0;
     UNIMPLEMENTED_IF_MSG(unk_flag, "Unknown flag in type");
-    type = static_cast<Type>(static_cast<u32>(type) & ~0x20000000U);
+    type = static_cast<Type>(static_cast<u32>(type) & ~0x20000000);
 
     const s32 fd = FindFreeFileDescriptorHandle();
     if (fd < 0) {
@@ -447,7 +447,7 @@ std::pair<s32, Errno> BSD::SocketImpl(Domain domain, Type type, Protocol protoco
         return {-1, Errno::MFILE};
     }
 
-    FileDescriptor& descriptor = GetFileDescriptor(fd).emplace();
+    FileDescriptor& descriptor = file_descriptors[fd].emplace();
     // ENONMEM might be thrown here
 
     LOG_INFO(Service, "New socket fd={}", fd);
@@ -461,7 +461,7 @@ std::pair<s32, Errno> BSD::SocketImpl(Domain domain, Type type, Protocol protoco
 
 std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::vector<u8> read_buffer,
                                     s32 nfds, s32 timeout) {
-    if (write_buffer.size() < static_cast<size_t>(nfds) * sizeof(PollFD)) {
+    if (write_buffer.size() < nfds * sizeof(PollFD)) {
         return {-1, Errno::INVAL};
     }
 
@@ -471,7 +471,7 @@ std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::vector<u
     }
 
     const size_t length = std::min(read_buffer.size(), write_buffer.size());
-    std::vector<PollFD> fds(static_cast<size_t>(nfds));
+    std::vector<PollFD> fds(nfds);
     std::memcpy(fds.data(), read_buffer.data(), length);
 
     if (timeout >= 0) {
@@ -497,7 +497,7 @@ std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::vector<u
             return {0, Errno::SUCCESS};
         }
 
-        const std::optional<FileDescriptor>& descriptor = GetFileDescriptor(pollfd.fd);
+        const std::optional<FileDescriptor>& descriptor = file_descriptors[pollfd.fd];
         if (!descriptor) {
             LOG_ERROR(Service, "File descriptor handle={} is not allocated", pollfd.fd);
             pollfd.revents = POLL_NVAL;
@@ -508,7 +508,7 @@ std::pair<s32, Errno> BSD::PollImpl(std::vector<u8>& write_buffer, std::vector<u
     std::vector<Network::PollFD> host_pollfds(fds.size());
     std::transform(fds.begin(), fds.end(), host_pollfds.begin(), [this](PollFD pollfd) {
         Network::PollFD result;
-        result.socket = GetFileDescriptor(pollfd.fd)->socket.get();
+        result.socket = file_descriptors[pollfd.fd]->socket.get();
         result.events = TranslatePollEventsToHost(pollfd.events);
         result.revents = 0;
         return result;
@@ -536,13 +536,13 @@ std::pair<s32, Errno> BSD::AcceptImpl(s32 fd, std::vector<u8>& write_buffer) {
         return {-1, Errno::MFILE};
     }
 
-    FileDescriptor& descriptor = *GetFileDescriptor(fd);
+    FileDescriptor& descriptor = *file_descriptors[fd];
     auto [result, bsd_errno] = descriptor.socket->Accept();
     if (bsd_errno != Network::Errno::SUCCESS) {
         return {-1, Translate(bsd_errno)};
     }
 
-    FileDescriptor& new_descriptor = GetFileDescriptor(new_fd).emplace();
+    FileDescriptor& new_descriptor = file_descriptors[new_fd].emplace();
     new_descriptor.socket = std::move(result.socket);
     new_descriptor.is_connection_based = descriptor.is_connection_based;
 
@@ -561,7 +561,7 @@ Errno BSD::BindImpl(s32 fd, const std::vector<u8>& addr) {
     SockAddrIn addr_in;
     std::memcpy(&addr_in, addr.data(), sizeof(addr_in));
 
-    return Translate(GetFileDescriptor(fd)->socket->Bind(Translate(addr_in)));
+    return Translate(file_descriptors[fd]->socket->Bind(Translate(addr_in)));
 }
 
 Errno BSD::ConnectImpl(s32 fd, const std::vector<u8>& addr) {
@@ -573,7 +573,7 @@ Errno BSD::ConnectImpl(s32 fd, const std::vector<u8>& addr) {
     SockAddrIn addr_in;
     std::memcpy(&addr_in, addr.data(), sizeof(addr_in));
 
-    return Translate(GetFileDescriptor(fd)->socket->Connect(Translate(addr_in)));
+    return Translate(file_descriptors[fd]->socket->Connect(Translate(addr_in)));
 }
 
 Errno BSD::GetPeerNameImpl(s32 fd, std::vector<u8>& write_buffer) {
@@ -581,7 +581,7 @@ Errno BSD::GetPeerNameImpl(s32 fd, std::vector<u8>& write_buffer) {
         return Errno::BADF;
     }
 
-    const auto [addr_in, bsd_errno] = GetFileDescriptor(fd)->socket->GetPeerName();
+    const auto [addr_in, bsd_errno] = file_descriptors[fd]->socket->GetPeerName();
     if (bsd_errno != Network::Errno::SUCCESS) {
         return Translate(bsd_errno);
     }
@@ -597,7 +597,7 @@ Errno BSD::GetSockNameImpl(s32 fd, std::vector<u8>& write_buffer) {
         return Errno::BADF;
     }
 
-    const auto [addr_in, bsd_errno] = GetFileDescriptor(fd)->socket->GetSockName();
+    const auto [addr_in, bsd_errno] = file_descriptors[fd]->socket->GetSockName();
     if (bsd_errno != Network::Errno::SUCCESS) {
         return Translate(bsd_errno);
     }
@@ -612,7 +612,7 @@ Errno BSD::ListenImpl(s32 fd, s32 backlog) {
     if (!IsFileDescriptorValid(fd)) {
         return Errno::BADF;
     }
-    return Translate(GetFileDescriptor(fd)->socket->Listen(backlog));
+    return Translate(file_descriptors[fd]->socket->Listen(backlog));
 }
 
 std::pair<s32, Errno> BSD::FcntlImpl(s32 fd, FcntlCmd cmd, s32 arg) {
@@ -620,14 +620,14 @@ std::pair<s32, Errno> BSD::FcntlImpl(s32 fd, FcntlCmd cmd, s32 arg) {
         return {-1, Errno::BADF};
     }
 
-    FileDescriptor& descriptor = *GetFileDescriptor(fd);
+    FileDescriptor& descriptor = *file_descriptors[fd];
 
     switch (cmd) {
     case FcntlCmd::GETFL:
         ASSERT(arg == 0);
         return {descriptor.flags, Errno::SUCCESS};
     case FcntlCmd::SETFL: {
-        const bool enable = (static_cast<u32>(arg) & FLAG_O_NONBLOCK) != 0;
+        const bool enable = (arg & FLAG_O_NONBLOCK) != 0;
         const Errno bsd_errno = Translate(descriptor.socket->SetNonBlock(enable));
         if (bsd_errno != Errno::SUCCESS) {
             return {-1, bsd_errno};
@@ -648,7 +648,7 @@ Errno BSD::SetSockOptImpl(s32 fd, u32 level, OptName optname, size_t optlen, con
         return Errno::BADF;
     }
 
-    Network::Socket* const socket = GetFileDescriptor(fd)->socket.get();
+    Network::Socket* const socket = file_descriptors[fd]->socket.get();
 
     if (optname == OptName::LINGER) {
         ASSERT(optlen == sizeof(Linger));
@@ -689,14 +689,14 @@ Errno BSD::ShutdownImpl(s32 fd, s32 how) {
         return Errno::BADF;
     }
     const Network::ShutdownHow host_how = Translate(static_cast<ShutdownHow>(how));
-    return Translate(GetFileDescriptor(fd)->socket->Shutdown(host_how));
+    return Translate(file_descriptors[fd]->socket->Shutdown(host_how));
 }
 
 std::pair<s32, Errno> BSD::RecvImpl(s32 fd, u32 flags, std::vector<u8>& message) {
     if (!IsFileDescriptorValid(fd)) {
         return {-1, Errno::BADF};
     }
-    return Translate(GetFileDescriptor(fd)->socket->Recv(flags, message));
+    return Translate(file_descriptors[fd]->socket->Recv(flags, message));
 }
 
 std::pair<s32, Errno> BSD::RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& message,
@@ -705,7 +705,7 @@ std::pair<s32, Errno> BSD::RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& mess
         return {-1, Errno::BADF};
     }
 
-    FileDescriptor& descriptor = *GetFileDescriptor(fd);
+    FileDescriptor& descriptor = *file_descriptors[fd];
 
     Network::SockAddrIn addr_in{};
     Network::SockAddrIn* p_addr_in = nullptr;
@@ -719,7 +719,7 @@ std::pair<s32, Errno> BSD::RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& mess
     // Apply flags
     if ((flags & FLAG_MSG_DONTWAIT) != 0) {
         flags &= ~FLAG_MSG_DONTWAIT;
-        if ((static_cast<u32>(descriptor.flags) & FLAG_O_NONBLOCK) == 0) {
+        if ((descriptor.flags & FLAG_O_NONBLOCK) == 0) {
             descriptor.socket->SetNonBlock(true);
         }
     }
@@ -727,7 +727,7 @@ std::pair<s32, Errno> BSD::RecvFromImpl(s32 fd, u32 flags, std::vector<u8>& mess
     const auto [ret, bsd_errno] = Translate(descriptor.socket->RecvFrom(flags, message, p_addr_in));
 
     // Restore original state
-    if ((static_cast<u32>(descriptor.flags) & FLAG_O_NONBLOCK) == 0) {
+    if ((descriptor.flags & FLAG_O_NONBLOCK) == 0) {
         descriptor.socket->SetNonBlock(false);
     }
 
@@ -748,7 +748,7 @@ std::pair<s32, Errno> BSD::SendImpl(s32 fd, u32 flags, const std::vector<u8>& me
     if (!IsFileDescriptorValid(fd)) {
         return {-1, Errno::BADF};
     }
-    return Translate(GetFileDescriptor(fd)->socket->Send(message, flags));
+    return Translate(file_descriptors[fd]->socket->Send(message, flags));
 }
 
 std::pair<s32, Errno> BSD::SendToImpl(s32 fd, u32 flags, const std::vector<u8>& message,
@@ -767,8 +767,7 @@ std::pair<s32, Errno> BSD::SendToImpl(s32 fd, u32 flags, const std::vector<u8>&
         p_addr_in = &addr_in;
     }
 
-    const auto& descriptor = GetFileDescriptor(fd);
-    return Translate(descriptor->socket->SendTo(flags, message, p_addr_in));
+    return Translate(file_descriptors[fd]->socket->SendTo(flags, message, p_addr_in));
 }
 
 Errno BSD::CloseImpl(s32 fd) {
@@ -776,21 +775,20 @@ Errno BSD::CloseImpl(s32 fd) {
         return Errno::BADF;
     }
 
-    auto& descriptor = GetFileDescriptor(fd);
-    const Errno bsd_errno = Translate(descriptor->socket->Close());
+    const Errno bsd_errno = Translate(file_descriptors[fd]->socket->Close());
     if (bsd_errno != Errno::SUCCESS) {
         return bsd_errno;
     }
 
     LOG_INFO(Service, "Close socket fd={}", fd);
 
-    descriptor.reset();
+    file_descriptors[fd].reset();
     return bsd_errno;
 }
 
 s32 BSD::FindFreeFileDescriptorHandle() noexcept {
     for (s32 fd = 0; fd < static_cast<s32>(file_descriptors.size()); ++fd) {
-        if (!GetFileDescriptor(fd)) {
+        if (!file_descriptors[fd]) {
             return fd;
         }
     }
@@ -802,7 +800,7 @@ bool BSD::IsFileDescriptorValid(s32 fd) const noexcept {
         LOG_ERROR(Service, "Invalid file descriptor handle={}", fd);
         return false;
     }
-    if (!GetFileDescriptor(fd)) {
+    if (!file_descriptors[fd]) {
         LOG_ERROR(Service, "File descriptor handle={} is not allocated", fd);
         return false;
     }
@@ -815,12 +813,10 @@ bool BSD::IsBlockingSocket(s32 fd) const noexcept {
     if (fd > static_cast<s32>(MAX_FD) || fd < 0) {
         return false;
     }
-
-    const auto& descriptor = GetFileDescriptor(fd);
-    if (!descriptor) {
+    if (!file_descriptors[fd]) {
         return false;
     }
-    return (static_cast<u32>(descriptor->flags) & FLAG_O_NONBLOCK) != 0;
+    return (file_descriptors[fd]->flags & FLAG_O_NONBLOCK) != 0;
 }
 
 void BSD::BuildErrnoResponse(Kernel::HLERequestContext& ctx, Errno bsd_errno) const noexcept {
@@ -831,14 +827,6 @@ void BSD::BuildErrnoResponse(Kernel::HLERequestContext& ctx, Errno bsd_errno) co
     rb.PushEnum(bsd_errno);
 }
 
-std::optional<BSD::FileDescriptor>& BSD::GetFileDescriptor(s32 fd) {
-    return file_descriptors[static_cast<u32>(fd)];
-}
-
-const std::optional<BSD::FileDescriptor>& BSD::GetFileDescriptor(s32 fd) const {
-    return file_descriptors[static_cast<u32>(fd)];
-}
-
 BSD::BSD(Core::System& system, const char* name)
     : ServiceFramework(name), worker_pool{system, this} {
     // clang-format off
diff --git a/src/core/hle/service/sockets/bsd.h b/src/core/hle/service/sockets/bsd.h
index ac9523d83..357531951 100644
--- a/src/core/hle/service/sockets/bsd.h
+++ b/src/core/hle/service/sockets/bsd.h
@@ -167,9 +167,6 @@ private:
 
     void BuildErrnoResponse(Kernel::HLERequestContext& ctx, Errno bsd_errno) const noexcept;
 
-    std::optional<FileDescriptor>& GetFileDescriptor(s32 fd);
-    const std::optional<FileDescriptor>& GetFileDescriptor(s32 fd) const;
-
     std::array<std::optional<FileDescriptor>, MAX_FD> file_descriptors;
 
     BlockingWorkerPool<BSD, PollWork, AcceptWork, ConnectWork, RecvWork, RecvFromWork, SendWork,
diff --git a/src/core/hle/service/sockets/sockets_translate.cpp b/src/core/hle/service/sockets/sockets_translate.cpp
index 50c2a455d..2e626fd86 100644
--- a/src/core/hle/service/sockets/sockets_translate.cpp
+++ b/src/core/hle/service/sockets/sockets_translate.cpp
@@ -64,7 +64,6 @@ Network::Type Translate(Type type) {
         return Network::Type::DGRAM;
     default:
         UNIMPLEMENTED_MSG("Unimplemented type={}", static_cast<int>(type));
-        return {};
     }
 }
 
diff --git a/src/core/hle/service/time/time_zone_manager.cpp b/src/core/hle/service/time/time_zone_manager.cpp
index df0ed924d..bdf0439f2 100644
--- a/src/core/hle/service/time/time_zone_manager.cpp
+++ b/src/core/hle/service/time/time_zone_manager.cpp
@@ -117,8 +117,7 @@ static constexpr int GetMonthLength(bool is_leap_year, int month) {
     constexpr std::array<int, 12> month_lengths{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
     constexpr std::array<int, 12> month_lengths_leap{31, 29, 31, 30, 31, 30,
                                                      31, 31, 30, 31, 30, 31};
-    const auto month_index = static_cast<u32>(month);
-    return is_leap_year ? month_lengths_leap[month_index] : month_lengths[month_index];
+    return is_leap_year ? month_lengths_leap[month] : month_lengths[month];
 }
 
 static constexpr bool IsDigit(char value) {
@@ -321,7 +320,7 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
     int dest_len{};
     int dest_offset{};
     const char* dest_name{name + offset};
-    if (rule.chars.size() < static_cast<std::size_t>(char_count)) {
+    if (rule.chars.size() < std::size_t(char_count)) {
         return {};
     }
 
@@ -344,7 +343,7 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
             return {};
         }
         char_count += dest_len + 1;
-        if (rule.chars.size() < static_cast<std::size_t>(char_count)) {
+        if (rule.chars.size() < std::size_t(char_count)) {
             return {};
         }
         if (name[offset] != '\0' && name[offset] != ',' && name[offset] != ';') {
@@ -387,7 +386,7 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
             rule.default_type = 0;
 
             s64 jan_first{};
-            u32 time_count{};
+            int time_count{};
             int jan_offset{};
             int year_beginning{epoch_year};
             do {
@@ -415,7 +414,7 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
                 if (is_reversed ||
                     (start_time < end_time &&
                      (end_time - start_time < (year_seconds + (std_offset - dest_offset))))) {
-                    if (rule.ats.size() - 2 < time_count) {
+                    if (rule.ats.size() - 2 < std::size_t(time_count)) {
                         break;
                     }
 
@@ -439,7 +438,7 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
                 }
                 jan_offset = 0;
             }
-            rule.time_count = static_cast<s32>(time_count);
+            rule.time_count = time_count;
             if (time_count == 0) {
                 rule.type_count = 1;
             } else if (years_per_repeat < year - year_beginning) {
@@ -452,30 +451,26 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
             }
 
             s64 their_std_offset{};
-            for (u32 index = 0; index < static_cast<u32>(rule.time_count); ++index) {
+            for (int index{}; index < rule.time_count; ++index) {
                 const s8 type{rule.types[index]};
-                const auto& tti = rule.ttis[static_cast<u8>(type)];
-
-                if (tti.is_standard_time_daylight) {
-                    their_std_offset = -tti.gmt_offset;
+                if (rule.ttis[type].is_standard_time_daylight) {
+                    their_std_offset = -rule.ttis[type].gmt_offset;
                 }
             }
 
             s64 their_offset{their_std_offset};
-            for (u32 index = 0; index < static_cast<u32>(rule.time_count); ++index) {
+            for (int index{}; index < rule.time_count; ++index) {
                 const s8 type{rule.types[index]};
-                const auto& tti = rule.ttis[static_cast<u8>(type)];
-
-                rule.types[index] = tti.is_dst ? 1 : 0;
-                if (!tti.is_gmt) {
-                    if (!tti.is_standard_time_daylight) {
+                rule.types[index] = rule.ttis[type].is_dst ? 1 : 0;
+                if (!rule.ttis[type].is_gmt) {
+                    if (!rule.ttis[type].is_standard_time_daylight) {
                         rule.ats[index] += dest_offset - their_std_offset;
                     } else {
                         rule.ats[index] += std_offset - their_std_offset;
                     }
                 }
-                their_offset = -tti.gmt_offset;
-                if (!tti.is_dst) {
+                their_offset = -rule.ttis[type].gmt_offset;
+                if (!rule.ttis[type].is_dst) {
                     their_std_offset = their_offset;
                 }
             }
@@ -499,16 +494,16 @@ static bool ParsePosixName(const char* name, TimeZoneRule& rule) {
     }
 
     rule.char_count = char_count;
-    for (std::size_t index = 0; index < static_cast<std::size_t>(std_len); ++index) {
+    for (int index{}; index < std_len; ++index) {
         rule.chars[index] = std_name[index];
     }
 
-    rule.chars[static_cast<size_t>(std_len++)] = '\0';
+    rule.chars[std_len++] = '\0';
     if (dest_len != 0) {
-        for (int index = 0; index < dest_len; ++index) {
-            rule.chars[static_cast<std::size_t>(std_len + index)] = dest_name[index];
+        for (int index{}; index < dest_len; ++index) {
+            rule.chars[std_len + index] = dest_name[index];
         }
-        rule.chars[static_cast<std::size_t>(std_len + dest_len)] = '\0';
+        rule.chars[std_len + dest_len] = '\0';
     }
 
     return true;
@@ -536,33 +531,33 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi
 
     int time_count{};
     u64 read_offset = sizeof(TzifHeader);
-    for (size_t index = 0; index < static_cast<size_t>(time_zone_rule.time_count); ++index) {
+    for (int index{}; index < time_zone_rule.time_count; ++index) {
         s64_be at{};
         vfs_file->ReadObject<s64_be>(&at, read_offset);
         time_zone_rule.types[index] = 1;
-        if (time_count != 0 && at <= time_zone_rule.ats[static_cast<size_t>(time_count) - 1]) {
-            if (at < time_zone_rule.ats[static_cast<size_t>(time_count) - 1]) {
+        if (time_count != 0 && at <= time_zone_rule.ats[time_count - 1]) {
+            if (at < time_zone_rule.ats[time_count - 1]) {
                 return {};
             }
             time_zone_rule.types[index - 1] = 0;
             time_count--;
         }
-        time_zone_rule.ats[static_cast<size_t>(time_count++)] = at;
+        time_zone_rule.ats[time_count++] = at;
         read_offset += sizeof(s64_be);
     }
     time_count = 0;
-    for (size_t index = 0; index < static_cast<size_t>(time_zone_rule.time_count); ++index) {
-        const auto type{static_cast<s8>(*vfs_file->ReadByte(read_offset))};
-        read_offset += sizeof(s8);
+    for (int index{}; index < time_zone_rule.time_count; ++index) {
+        const u8 type{*vfs_file->ReadByte(read_offset)};
+        read_offset += sizeof(u8);
         if (time_zone_rule.time_count <= type) {
             return {};
         }
         if (time_zone_rule.types[index] != 0) {
-            time_zone_rule.types[static_cast<size_t>(time_count++)] = type;
+            time_zone_rule.types[time_count++] = type;
         }
     }
     time_zone_rule.time_count = time_count;
-    for (size_t index = 0; index < static_cast<size_t>(time_zone_rule.type_count); ++index) {
+    for (int index{}; index < time_zone_rule.type_count; ++index) {
         TimeTypeInfo& ttis{time_zone_rule.ttis[index]};
         u32_be gmt_offset{};
         vfs_file->ReadObject<u32_be>(&gmt_offset, read_offset);
@@ -584,11 +579,10 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi
         ttis.abbreviation_list_index = abbreviation_list_index;
     }
 
-    vfs_file->ReadArray(time_zone_rule.chars.data(), static_cast<u32>(time_zone_rule.char_count),
-                        read_offset);
-    time_zone_rule.chars[static_cast<u32>(time_zone_rule.char_count)] = '\0';
-    read_offset += static_cast<u64>(time_zone_rule.char_count);
-    for (size_t index = 0; index < static_cast<size_t>(time_zone_rule.type_count); ++index) {
+    vfs_file->ReadArray(time_zone_rule.chars.data(), time_zone_rule.char_count, read_offset);
+    time_zone_rule.chars[time_zone_rule.char_count] = '\0';
+    read_offset += time_zone_rule.char_count;
+    for (int index{}; index < time_zone_rule.type_count; ++index) {
         if (header.ttis_std_count == 0) {
             time_zone_rule.ttis[index].is_standard_time_daylight = false;
         } else {
@@ -601,7 +595,7 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi
         }
     }
 
-    for (size_t index = 0; index < static_cast<size_t>(time_zone_rule.type_count); ++index) {
+    for (int index{}; index < time_zone_rule.type_count; ++index) {
         if (header.ttis_std_count == 0) {
             time_zone_rule.ttis[index].is_gmt = false;
         } else {
@@ -625,14 +619,13 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi
     }
 
     std::array<char, time_zone_name_max + 1> temp_name{};
-    vfs_file->ReadArray(temp_name.data(), static_cast<size_t>(bytes_read), read_offset);
-    if (bytes_read > 2 && temp_name[0] == '\n' &&
-        temp_name[static_cast<u64>(bytes_read - 1)] == '\n' &&
-        static_cast<std::size_t>(time_zone_rule.type_count) + 2 <= time_zone_rule.ttis.size()) {
-        temp_name[static_cast<u64>(bytes_read - 1)] = '\0';
+    vfs_file->ReadArray(temp_name.data(), bytes_read, read_offset);
+    if (bytes_read > 2 && temp_name[0] == '\n' && temp_name[bytes_read - 1] == '\n' &&
+        std::size_t(time_zone_rule.type_count) + 2 <= time_zone_rule.ttis.size()) {
+        temp_name[bytes_read - 1] = '\0';
 
         std::array<char, time_zone_name_max> name{};
-        std::memcpy(name.data(), temp_name.data() + 1, static_cast<std::size_t>(bytes_read - 1));
+        std::memcpy(name.data(), temp_name.data() + 1, std::size_t(bytes_read - 1));
 
         TimeZoneRule temp_rule;
         if (ParsePosixName(name.data(), temp_rule)) {
@@ -649,24 +642,24 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi
     s32 default_type{};
 
     for (default_type = 0; default_type < time_zone_rule.time_count; default_type++) {
-        if (time_zone_rule.types[static_cast<u32>(default_type)] == 0) {
+        if (time_zone_rule.types[default_type] == 0) {
             break;
         }
     }
 
     default_type = default_type < time_zone_rule.time_count ? -1 : 0;
     if (default_type < 0 && time_zone_rule.time_count > 0 &&
-        time_zone_rule.ttis[static_cast<u8>(time_zone_rule.types[0])].is_dst) {
+        time_zone_rule.ttis[time_zone_rule.types[0]].is_dst) {
         default_type = time_zone_rule.types[0];
         while (--default_type >= 0) {
-            if (!time_zone_rule.ttis[static_cast<u32>(default_type)].is_dst) {
+            if (!time_zone_rule.ttis[default_type].is_dst) {
                 break;
             }
         }
     }
     if (default_type < 0) {
         default_type = 0;
-        while (time_zone_rule.ttis[static_cast<u32>(default_type)].is_dst) {
+        while (time_zone_rule.ttis[default_type].is_dst) {
             if (++default_type >= time_zone_rule.type_count) {
                 default_type = 0;
                 break;
@@ -756,12 +749,12 @@ static ResultCode ToCalendarTimeInternal(const TimeZoneRule& rules, s64 time,
                                          CalendarTimeInternal& calendar_time,
                                          CalendarAdditionalInfo& calendar_additional_info) {
     if ((rules.go_ahead && time < rules.ats[0]) ||
-        (rules.go_back && time > rules.ats[static_cast<size_t>(rules.time_count - 1)])) {
+        (rules.go_back && time > rules.ats[rules.time_count - 1])) {
         s64 seconds{};
         if (time < rules.ats[0]) {
             seconds = rules.ats[0] - time;
         } else {
-            seconds = time - rules.ats[static_cast<size_t>(rules.time_count - 1)];
+            seconds = time - rules.ats[rules.time_count - 1];
         }
         seconds--;
 
@@ -774,8 +767,7 @@ static ResultCode ToCalendarTimeInternal(const TimeZoneRule& rules, s64 time,
         } else {
             new_time -= seconds;
         }
-        if (new_time < rules.ats[0] &&
-            new_time > rules.ats[static_cast<size_t>(rules.time_count - 1)]) {
+        if (new_time < rules.ats[0] && new_time > rules.ats[rules.time_count - 1]) {
             return ERROR_TIME_NOT_FOUND;
         }
         if (const ResultCode result{
@@ -799,27 +791,25 @@ static ResultCode ToCalendarTimeInternal(const TimeZoneRule& rules, s64 time,
         s32 low{1};
         s32 high{rules.time_count};
         while (low < high) {
-            const s32 mid{(low + high) >> 1};
-            if (time < rules.ats[static_cast<size_t>(mid)]) {
+            s32 mid{(low + high) >> 1};
+            if (time < rules.ats[mid]) {
                 high = mid;
             } else {
                 low = mid + 1;
             }
         }
-        tti_index = rules.types[static_cast<size_t>(low - 1)];
+        tti_index = rules.types[low - 1];
     }
 
-    if (const ResultCode result{
-            CreateCalendarTime(time, rules.ttis[static_cast<u32>(tti_index)].gmt_offset,
-                               calendar_time, calendar_additional_info)};
+    if (const ResultCode result{CreateCalendarTime(time, rules.ttis[tti_index].gmt_offset,
+                                                   calendar_time, calendar_additional_info)};
         result != RESULT_SUCCESS) {
         return result;
     }
 
-    const auto& tti = rules.ttis[static_cast<size_t>(tti_index)];
-    calendar_additional_info.is_dst = tti.is_dst;
-    const char* time_zone{&rules.chars[static_cast<size_t>(tti.abbreviation_list_index)]};
-    for (size_t index = 0; time_zone[index] != '\0'; ++index) {
+    calendar_additional_info.is_dst = rules.ttis[tti_index].is_dst;
+    const char* time_zone{&rules.chars[rules.ttis[tti_index].abbreviation_list_index]};
+    for (int index{}; time_zone[index] != '\0'; ++index) {
         calendar_additional_info.timezone_name[index] = time_zone[index];
     }
     return RESULT_SUCCESS;
diff --git a/src/core/hle/service/time/time_zone_service.cpp b/src/core/hle/service/time/time_zone_service.cpp
index 8a0227021..ff3a10b3e 100644
--- a/src/core/hle/service/time/time_zone_service.cpp
+++ b/src/core/hle/service/time/time_zone_service.cpp
@@ -49,12 +49,12 @@ void ITimeZoneService::LoadTimeZoneRule(Kernel::HLERequestContext& ctx) {
     const auto raw_location_name{rp.PopRaw<std::array<u8, 0x24>>()};
 
     std::string location_name;
-    for (const auto byte : raw_location_name) {
+    for (const auto& byte : raw_location_name) {
         // Strip extra bytes
         if (byte == '\0') {
             break;
         }
-        location_name.push_back(static_cast<char>(byte));
+        location_name.push_back(byte);
     }
 
     LOG_DEBUG(Service_Time, "called, location_name={}", location_name);