diff --git a/src/xenia/base/bit_map.h b/src/xenia/base/bit_map.h
index e80ad93b6..29bbb3925 100644
--- a/src/xenia/base/bit_map.h
+++ b/src/xenia/base/bit_map.h
@@ -10,6 +10,7 @@
 #ifndef XENIA_BASE_BIT_MAP_H_
 #define XENIA_BASE_BIT_MAP_H_
 
+#include <cstddef>
 #include <cstdint>
 #include <vector>
 
@@ -52,4 +53,4 @@ class BitMap {
 
 }  // namespace xe
 
-#endif  // XENIA_BASE_BIT_MAP_H_
\ No newline at end of file
+#endif  // XENIA_BASE_BIT_MAP_H_
diff --git a/src/xenia/base/byte_stream.cc b/src/xenia/base/byte_stream.cc
index abc49c1ba..652b5c0df 100644
--- a/src/xenia/base/byte_stream.cc
+++ b/src/xenia/base/byte_stream.cc
@@ -9,6 +9,8 @@
 
 #include "xenia/base/byte_stream.h"
 
+#include <cstring>
+
 #include "xenia/base/assert.h"
 
 namespace xe {
@@ -34,4 +36,24 @@ void ByteStream::Write(const uint8_t* buf, size_t len) {
   Advance(len);
 }
 
-}  // namespace xe
\ No newline at end of file
+template <>
+std::string ByteStream::Read() {
+  std::string str;
+  uint32_t len = Read<uint32_t>();
+  str.resize(len);
+
+  Read(reinterpret_cast<uint8_t*>(&str[0]), len);
+  return str;
+}
+
+template <>
+std::wstring ByteStream::Read() {
+  std::wstring str;
+  uint32_t len = Read<uint32_t>();
+  str.resize(len);
+
+  Read(reinterpret_cast<uint8_t*>(&str[0]), len * 2);
+  return str;
+}
+
+}  // namespace xe
diff --git a/src/xenia/base/byte_stream.h b/src/xenia/base/byte_stream.h
index 479be9760..d97568b28 100644
--- a/src/xenia/base/byte_stream.h
+++ b/src/xenia/base/byte_stream.h
@@ -46,26 +46,6 @@ class ByteStream {
     return data;
   }
 
-  template <>
-  std::string Read() {
-    std::string str;
-    uint32_t len = Read<uint32_t>();
-    str.resize(len);
-
-    Read(reinterpret_cast<uint8_t*>(&str[0]), len);
-    return str;
-  }
-
-  template <>
-  std::wstring Read() {
-    std::wstring str;
-    uint32_t len = Read<uint32_t>();
-    str.resize(len);
-
-    Read(reinterpret_cast<uint8_t*>(&str[0]), len * 2);
-    return str;
-  }
-
   template <typename T>
   void Write(T data) {
     Write(reinterpret_cast<uint8_t*>(&data), sizeof(T));
@@ -87,6 +67,12 @@ class ByteStream {
   size_t offset_ = 0;
 };
 
+template <>
+std::string ByteStream::Read();
+
+template <>
+std::wstring ByteStream::Read();
+
 }  // namespace xe
 
-#endif  // XENIA_BASE_BYTE_STREAM_H_
\ No newline at end of file
+#endif  // XENIA_BASE_BYTE_STREAM_H_
diff --git a/src/xenia/base/profiling.cc b/src/xenia/base/profiling.cc
index 742a6a279..b787992f7 100644
--- a/src/xenia/base/profiling.cc
+++ b/src/xenia/base/profiling.cc
@@ -261,7 +261,9 @@ void Profiler::OnMouseDown(bool left_button, bool right_button) {}
 void Profiler::OnMouseUp() {}
 void Profiler::OnMouseMove(int x, int y) {}
 void Profiler::OnMouseWheel(int x, int y, int dy) {}
-void Profiler::set_display(std::unique_ptr<ui::MicroprofilerDrawer> display) {}
+void Profiler::ToggleDisplay() {}
+void Profiler::TogglePause() {}
+void Profiler::set_window(ui::Window* window) {}
 void Profiler::Present() {}
 
 #endif  // XE_OPTION_PROFILING
diff --git a/src/xenia/base/x64_context.cc b/src/xenia/base/x64_context.cc
index 8671c4017..77f595461 100644
--- a/src/xenia/base/x64_context.cc
+++ b/src/xenia/base/x64_context.cc
@@ -45,8 +45,7 @@ std::string X64Context::GetStringFromValue(X64Register reg, bool hex) const {
                      static_cast<int>(X64Register::kXmm15)) {
         auto value = xmm_registers[static_cast<int>(reg) -
                                    static_cast<int>(X64Register::kXmm0)];
-        return hex ? string_util::to_hex_string(value)
-                   : string_util::to_string(value);
+        return hex ? string_util::to_hex_string(value) : xe::to_string(value);
       } else {
         assert_unhandled_case(reg);
         return "";
diff --git a/src/xenia/base/x64_context.h b/src/xenia/base/x64_context.h
index 0a9002661..052193bb3 100644
--- a/src/xenia/base/x64_context.h
+++ b/src/xenia/base/x64_context.h
@@ -15,6 +15,8 @@
 #include <cstdint>
 #include <string>
 
+#include "xenia/base/vec128.h"
+
 namespace xe {
 
 enum class X64Register {
@@ -84,24 +86,24 @@ class X64Context {
 
   union {
     struct {
-      __m128 xmm0;
-      __m128 xmm1;
-      __m128 xmm2;
-      __m128 xmm3;
-      __m128 xmm4;
-      __m128 xmm5;
-      __m128 xmm6;
-      __m128 xmm7;
-      __m128 xmm8;
-      __m128 xmm9;
-      __m128 xmm10;
-      __m128 xmm11;
-      __m128 xmm12;
-      __m128 xmm13;
-      __m128 xmm14;
-      __m128 xmm15;
+      vec128_t xmm0;
+      vec128_t xmm1;
+      vec128_t xmm2;
+      vec128_t xmm3;
+      vec128_t xmm4;
+      vec128_t xmm5;
+      vec128_t xmm6;
+      vec128_t xmm7;
+      vec128_t xmm8;
+      vec128_t xmm9;
+      vec128_t xmm10;
+      vec128_t xmm11;
+      vec128_t xmm12;
+      vec128_t xmm13;
+      vec128_t xmm14;
+      vec128_t xmm15;
     };
-    __m128 xmm_registers[16];
+    vec128_t xmm_registers[16];
   };
 
   static const char* GetRegisterName(X64Register reg);
diff --git a/src/xenia/cpu/hir/value.cc b/src/xenia/cpu/hir/value.cc
index e0be35b58..03ef79a2a 100644
--- a/src/xenia/cpu/hir/value.cc
+++ b/src/xenia/cpu/hir/value.cc
@@ -206,6 +206,9 @@ void Value::Convert(TypeName target_type, RoundMode round_mode) {
           type = target_type;
           constant.f64 = constant.f32;
           return;
+        default:
+          assert_unhandled_case(target_type);
+          return;
       }
     case FLOAT64_TYPE:
       switch (target_type) {
@@ -213,9 +216,12 @@ void Value::Convert(TypeName target_type, RoundMode round_mode) {
           type = target_type;
           constant.f32 = (float)constant.f64;
           return;
+        default:
+          assert_unhandled_case(target_type);
+          return;
       }
     default:
-      assert_unhandled_case(target_type);
+      assert_unhandled_case(type);
       return;
   }
 }
diff --git a/src/xenia/cpu/processor.cc b/src/xenia/cpu/processor.cc
index f292ef6ce..f9304bc83 100644
--- a/src/xenia/cpu/processor.cc
+++ b/src/xenia/cpu/processor.cc
@@ -338,7 +338,7 @@ uint64_t Processor::Execute(ThreadState* thread_state, uint32_t address,
   SCOPE_profile_cpu_f("cpu");
 
   auto context = thread_state->context();
-  for (size_t i = 0; i < std::min(arg_count, 8ull); ++i) {
+  for (size_t i = 0; i < std::min(arg_count, static_cast<size_t>(8)); ++i) {
     context->r[3 + i] = args[i];
   }
 
diff --git a/src/xenia/debug/ui/debug_window.cc b/src/xenia/debug/ui/debug_window.cc
index a06443609..5526d42bf 100644
--- a/src/xenia/debug/ui/debug_window.cc
+++ b/src/xenia/debug/ui/debug_window.cc
@@ -318,7 +318,7 @@ void DebugWindow::DrawSourcePane() {
   //   name text box (editable)
   //   combo for interleaved + [ppc, hir, opt hir, x64 + byte with sizes]
   ImGui::AlignFirstTextHeightToWidgets();
-  ImGui::Text(function->module()->name().c_str());
+  ImGui::Text("%s", function->module()->name().c_str());
   ImGui::SameLine();
   ImGui::Dummy(ImVec2(4, 0));
   ImGui::SameLine();
@@ -657,7 +657,7 @@ bool DebugWindow::DrawRegisterTextBox(int id, uint32_t* value) {
     auto alt_value = state_.register_input_hex
                          ? std::to_string(*value)
                          : string_util::to_hex_string(*value);
-    ImGui::SetTooltip(alt_value.c_str());
+    ImGui::SetTooltip("%s", alt_value.c_str());
   }
   return any_changed;
 }
@@ -697,7 +697,7 @@ bool DebugWindow::DrawRegisterTextBox(int id, uint64_t* value) {
     auto alt_value = state_.register_input_hex
                          ? std::to_string(*value)
                          : string_util::to_hex_string(*value);
-    ImGui::SetTooltip(alt_value.c_str());
+    ImGui::SetTooltip("%s", alt_value.c_str());
   }
   return any_changed;
 }
@@ -715,7 +715,7 @@ bool DebugWindow::DrawRegisterTextBox(int id, double* value) {
   } else {
     input_flags |=
         ImGuiInputTextFlags_CharsDecimal | ImGuiInputTextFlags_AutoSelectAll;
-    std::snprintf(buffer, xe::countof(buffer), "%.8LF", *value);
+    std::snprintf(buffer, xe::countof(buffer), "%.8F", *value);
   }
   char label[16] = {0};
   std::snprintf(label, xe::countof(label), "##dregister%d", id);
@@ -736,7 +736,7 @@ bool DebugWindow::DrawRegisterTextBox(int id, double* value) {
     auto alt_value = state_.register_input_hex
                          ? std::to_string(*value)
                          : string_util::to_hex_string(*value);
-    ImGui::SetTooltip(alt_value.c_str());
+    ImGui::SetTooltip("%s", alt_value.c_str());
   }
   return any_changed;
 }
@@ -779,7 +779,7 @@ bool DebugWindow::DrawRegisterTextBoxes(int id, float* value) {
       auto alt_value = state_.register_input_hex
                            ? std::to_string(value[i])
                            : string_util::to_hex_string(value[i]);
-      ImGui::SetTooltip(alt_value.c_str());
+      ImGui::SetTooltip("%s", alt_value.c_str());
     }
     if (i < 3) {
       ImGui::SameLine();
@@ -968,7 +968,7 @@ void DebugWindow::DrawRegistersPane() {
         ImGui::Dummy(ImVec2(4, 0));
         ImGui::SameLine();
         dirty_host_context |= DrawRegisterTextBoxes(
-            i, thread_info->host_context.xmm_registers[i].m128_f32);
+            i, thread_info->host_context.xmm_registers[i].f32);
         ImGui::EndGroup();
       }
       ImGui::EndChild();
@@ -1067,9 +1067,9 @@ void DebugWindow::DrawThreadsPane() {
         ImGui::Dummy(ImVec2(8, 0));
         ImGui::SameLine();
         if (frame.guest_function) {
-          ImGui::Text(frame.guest_function->name().c_str());
+          ImGui::Text("%s", frame.guest_function->name().c_str());
         } else {
-          ImGui::Text(frame.name);
+          ImGui::Text("%s", frame.name);
         }
         if (is_current_thread && !frame.guest_pc) {
           ImGui::PopStyleColor();
@@ -1259,7 +1259,7 @@ void DebugWindow::DrawBreakpointsPane() {
       ImGui::SameLine();
       ImGui::Dummy(ImVec2(4, 0));
       ImGui::SameLine();
-      ImGui::Text(export_entry->name);
+      ImGui::Text("%s", export_entry->name);
       ImGui::Dummy(ImVec2(0, 1));
       ImGui::PopID();
     }
@@ -1344,6 +1344,10 @@ void DebugWindow::DrawBreakpointsPane() {
             }
             break;
           }
+          default: {
+            // Ignored.
+            break;
+          }
         }
       }
       if (ImGui::BeginPopupContextItem("##breakpoint_context_menu")) {
diff --git a/src/xenia/emulator.cc b/src/xenia/emulator.cc
index d293a01e5..ccfec481e 100644
--- a/src/xenia/emulator.cc
+++ b/src/xenia/emulator.cc
@@ -504,8 +504,7 @@ X_STATUS Emulator::CompleteLaunch(const std::wstring& path,
     XELOGI("Launching module %s", next_module.c_str());
     auto module = kernel_state_->LoadUserModule(next_module.c_str());
     if (!module) {
-      auto path_str = xe::to_string(path);
-      XELOGE("Failed to load user module %s", path.c_str());
+      XELOGE("Failed to load user module %S", path.c_str());
       return X_STATUS_NOT_FOUND;
     }
 
diff --git a/src/xenia/gpu/glsl_shader_translator.cc b/src/xenia/gpu/glsl_shader_translator.cc
index 423ba191d..397dd3a63 100644
--- a/src/xenia/gpu/glsl_shader_translator.cc
+++ b/src/xenia/gpu/glsl_shader_translator.cc
@@ -559,6 +559,9 @@ void GlslShaderTranslator::ProcessVertexFetchInstruction(
         EmitSource(" = vf%u_%d;\n", instr.operands[1].storage_index,
                    instr.attributes.offset);
         break;
+      default:
+        assert_always();
+        break;
     }
   }
 
@@ -676,6 +679,9 @@ void GlslShaderTranslator::ProcessTextureFetchInstruction(
       EmitUnimplementedTranslationError();
       EmitSourceDepth("pv = vec4(0.0);\n");
       break;
+    case FetchOpcode::kVertexFetch:
+      assert_always();
+      break;
   }
 
   EmitStoreVectorResult(instr.result);
@@ -728,6 +734,10 @@ void GlslShaderTranslator::EmitLoadOperand(size_t i,
     case InstructionStorageSource::kConstantBool:
       EmitSource("state.bool_consts");
       break;
+    case InstructionStorageSource::kTextureFetchConstant:
+    case InstructionStorageSource::kVertexFetchConstant:
+      assert_always();
+      break;
   }
   switch (op.storage_addressing_mode) {
     case InstructionStorageAddressingMode::kStatic:
@@ -815,6 +825,8 @@ void GlslShaderTranslator::EmitStoreResult(const InstructionResult& result,
     case InstructionStorageTarget::kDepth:
       EmitSourceDepth("gl_FragDepth");
       break;
+    case InstructionStorageTarget::kNone:
+      break;
   }
   if (uses_storage_index) {
     switch (result.storage_addressing_mode) {
diff --git a/src/xenia/gpu/shader.cc b/src/xenia/gpu/shader.cc
index c2fc1f25d..3e0be41f9 100644
--- a/src/xenia/gpu/shader.cc
+++ b/src/xenia/gpu/shader.cc
@@ -9,6 +9,7 @@
 
 #include "xenia/gpu/shader.h"
 
+#include <cinttypes>
 #include <cstring>
 
 #include "xenia/base/filesystem.h"
@@ -47,8 +48,8 @@ void Shader::Dump(const std::string& base_path, const char* path_prefix) {
 
   char txt_file_name[kMaxPath];
   std::snprintf(txt_file_name, xe::countof(txt_file_name),
-                "%s/shader_%s_%.16llX.%s", base_path.c_str(), path_prefix,
-                ucode_data_hash_,
+                "%s/shader_%s_%.16" PRIX64 ".%s", base_path.c_str(),
+                path_prefix, ucode_data_hash_,
                 shader_type_ == ShaderType::kVertex ? "vert" : "frag");
   FILE* f = fopen(txt_file_name, "w");
   if (f) {
@@ -70,8 +71,8 @@ void Shader::Dump(const std::string& base_path, const char* path_prefix) {
 
   char bin_file_name[kMaxPath];
   std::snprintf(bin_file_name, xe::countof(bin_file_name),
-                "%s/shader_%s_%.16llX.bin.%s", base_path.c_str(), path_prefix,
-                ucode_data_hash_,
+                "%s/shader_%s_%.16" PRIX64 ".bin.%s", base_path.c_str(),
+                path_prefix, ucode_data_hash_,
                 shader_type_ == ShaderType::kVertex ? "vert" : "frag");
   f = fopen(bin_file_name, "w");
   if (f) {
diff --git a/src/xenia/gpu/shader_translator.cc b/src/xenia/gpu/shader_translator.cc
index f4e7376df..689bcbf97 100644
--- a/src/xenia/gpu/shader_translator.cc
+++ b/src/xenia/gpu/shader_translator.cc
@@ -159,7 +159,7 @@ void ShaderTranslator::GatherBindingInformation(
     case ControlFlowOpcode::kCondExecPred:
     case ControlFlowOpcode::kCondExecPredEnd:
     case ControlFlowOpcode::kCondExecPredClean:
-    case ControlFlowOpcode::kCondExecPredCleanEnd:
+    case ControlFlowOpcode::kCondExecPredCleanEnd: {
       uint32_t sequence = cf.exec.sequence();
       for (uint32_t instr_offset = cf.exec.address();
            instr_offset < cf.exec.address() + cf.exec.count();
@@ -184,17 +184,19 @@ void ShaderTranslator::GatherBindingInformation(
           auto& op = *reinterpret_cast<const AluInstruction*>(ucode_dwords_ +
                                                               instr_offset * 3);
           if (op.has_vector_op() && op.is_export()) {
-            if (op.vector_dest() >= 0 && op.vector_dest() <= 3) {
+            if (op.vector_dest() <= 3) {
               writes_color_targets_[op.vector_dest()] = true;
             }
           }
           if (op.has_scalar_op() && op.is_export()) {
-            if (op.vector_dest() >= 0 && op.vector_dest() <= 3) {
+            if (op.vector_dest() <= 3) {
               writes_color_targets_[op.vector_dest()] = true;
             }
           }
         }
       }
+    } break;
+    default:
       break;
   }
 }
@@ -248,6 +250,9 @@ void ShaderTranslator::GatherTextureBindingInformation(
     case FetchOpcode::kSetTextureGradientsVert:
       // Doesn't use bindings.
       return;
+    default:
+      // Continue.
+      break;
   }
   Shader::TextureBinding binding;
   binding.binding_index = texture_bindings_.size();
@@ -271,6 +276,9 @@ void AddControlFlowTargetLabel(const ControlFlowInstruction& cf,
     case ControlFlowOpcode::kCondJmp:
       label_addresses->insert(cf.cond_jmp.address());
       break;
+    default:
+      // Ignored.
+      break;
   }
 }
 
@@ -435,6 +443,8 @@ void ShaderTranslator::TranslateControlFlowCondExec(
       i.opcode_name = "cexece";
       i.is_end = true;
       break;
+    default:
+      break;
   }
   i.instruction_address = cf.address();
   i.instruction_count = cf.count();
@@ -446,6 +456,8 @@ void ShaderTranslator::TranslateControlFlowCondExec(
     case ControlFlowOpcode::kCondExecEnd:
       i.clean = false;
       break;
+    default:
+      break;
   }
   i.is_yield = cf.is_yield();
   i.sequence = cf.sequence();
diff --git a/src/xenia/gpu/shader_translator_disasm.cc b/src/xenia/gpu/shader_translator_disasm.cc
index 4f4022f6e..8e1bdb996 100644
--- a/src/xenia/gpu/shader_translator_disasm.cc
+++ b/src/xenia/gpu/shader_translator_disasm.cc
@@ -45,6 +45,8 @@ void DisassembleResultOperand(const InstructionResult& result,
     case InstructionStorageTarget::kDepth:
       out->Append("oDepth");
       break;
+    case InstructionStorageTarget::kNone:
+      break;
   }
   if (uses_storage_index) {
     switch (result.storage_addressing_mode) {
@@ -90,6 +92,10 @@ void DisassembleSourceOperand(const InstructionOperand& op, StringBuffer* out) {
     case InstructionStorageSource::kConstantBool:
       out->Append('b');
       break;
+    case InstructionStorageSource::kTextureFetchConstant:
+    case InstructionStorageSource::kVertexFetchConstant:
+      assert_always();
+      break;
   }
   if (op.is_absolute_value) {
     out->Append("_abs");
diff --git a/src/xenia/ui/imgui_drawer.cc b/src/xenia/ui/imgui_drawer.cc
index c79870250..6507699e7 100644
--- a/src/xenia/ui/imgui_drawer.cc
+++ b/src/xenia/ui/imgui_drawer.cc
@@ -274,6 +274,9 @@ void ImGuiDrawer::OnMouseDown(MouseEvent* e) {
     case xe::ui::MouseEvent::Button::kRight: {
       io.MouseDown[1] = true;
     } break;
+    default: {
+      // Ignored.
+    } break;
   }
 }
 
@@ -292,6 +295,9 @@ void ImGuiDrawer::OnMouseUp(MouseEvent* e) {
     case xe::ui::MouseEvent::Button::kRight: {
       io.MouseDown[1] = false;
     } break;
+    default: {
+      // Ignored.
+    } break;
   }
 }
 
diff --git a/src/xenia/ui/window.cc b/src/xenia/ui/window.cc
index 0d27eaec0..0a3c1993b 100644
--- a/src/xenia/ui/window.cc
+++ b/src/xenia/ui/window.cc
@@ -9,6 +9,8 @@
 
 #include "xenia/ui/window.h"
 
+#include <algorithm>
+
 #include "third_party/imgui/imgui.h"
 #include "xenia/base/assert.h"
 #include "xenia/base/clock.h"