diff --git a/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp b/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp
index 86f971d173..2772872ce4 100644
--- a/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp
+++ b/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.cpp
@@ -56,7 +56,9 @@ struct CachedInterpreter::Instruction
   Type type = Type::Abort;
 };
 
-CachedInterpreter::CachedInterpreter() = default;
+CachedInterpreter::CachedInterpreter(Core::System& system) : JitBase(system)
+{
+}
 
 CachedInterpreter::~CachedInterpreter() = default;
 
diff --git a/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.h b/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.h
index 1dcd9421ec..e853be9edf 100644
--- a/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.h
+++ b/Source/Core/Core/PowerPC/CachedInterpreter/CachedInterpreter.h
@@ -13,7 +13,11 @@
 class CachedInterpreter : public JitBase
 {
 public:
-  CachedInterpreter();
+  explicit CachedInterpreter(Core::System& system);
+  CachedInterpreter(const CachedInterpreter&) = delete;
+  CachedInterpreter(CachedInterpreter&&) = delete;
+  CachedInterpreter& operator=(const CachedInterpreter&) = delete;
+  CachedInterpreter& operator=(CachedInterpreter&&) = delete;
   ~CachedInterpreter();
 
   void Init() override;
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit.cpp b/Source/Core/Core/PowerPC/Jit64/Jit.cpp
index 73e0dd3601..8b96992e89 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit.cpp
@@ -116,7 +116,7 @@ using namespace PowerPC;
     and such, but it's currently limited to integer ops only. This can definitely be made better.
 */
 
-Jit64::Jit64() : QuantizedMemoryRoutines(*this)
+Jit64::Jit64(Core::System& system) : JitBase(system), QuantizedMemoryRoutines(*this)
 {
 }
 
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit.h b/Source/Core/Core/PowerPC/Jit64/Jit.h
index c090af4dea..efbe571649 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit.h
+++ b/Source/Core/Core/PowerPC/Jit64/Jit.h
@@ -43,7 +43,11 @@ struct CodeOp;
 class Jit64 : public JitBase, public QuantizedMemoryRoutines
 {
 public:
-  Jit64();
+  explicit Jit64(Core::System& system);
+  Jit64(const Jit64&) = delete;
+  Jit64(Jit64&&) = delete;
+  Jit64& operator=(const Jit64&) = delete;
+  Jit64& operator=(Jit64&&) = delete;
   ~Jit64() override;
 
   void Init() override;
diff --git a/Source/Core/Core/PowerPC/JitArm64/Jit.cpp b/Source/Core/Core/PowerPC/JitArm64/Jit.cpp
index 49b065e017..7f85fb5b2d 100644
--- a/Source/Core/Core/PowerPC/JitArm64/Jit.cpp
+++ b/Source/Core/Core/PowerPC/JitArm64/Jit.cpp
@@ -38,7 +38,7 @@ constexpr size_t CODE_SIZE = 1024 * 1024 * 32;
 constexpr size_t FARCODE_SIZE = 1024 * 1024 * 64;
 constexpr size_t FARCODE_SIZE_MMU = 1024 * 1024 * 64;
 
-JitArm64::JitArm64() : m_float_emit(this)
+JitArm64::JitArm64(Core::System& system) : JitBase(system), m_float_emit(this)
 {
 }
 
diff --git a/Source/Core/Core/PowerPC/JitArm64/Jit.h b/Source/Core/Core/PowerPC/JitArm64/Jit.h
index 629cdafede..c323ee04d9 100644
--- a/Source/Core/Core/PowerPC/JitArm64/Jit.h
+++ b/Source/Core/Core/PowerPC/JitArm64/Jit.h
@@ -22,7 +22,11 @@
 class JitArm64 : public JitBase, public Arm64Gen::ARM64CodeBlock, public CommonAsmRoutinesBase
 {
 public:
-  JitArm64();
+  explicit JitArm64(Core::System& system);
+  JitArm64(const JitArm64&) = delete;
+  JitArm64(JitArm64&&) = delete;
+  JitArm64& operator=(const JitArm64&) = delete;
+  JitArm64& operator=(JitArm64&&) = delete;
   ~JitArm64() override;
 
   void Init() override;
diff --git a/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp b/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp
index 2e319f41ab..7717751747 100644
--- a/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp
+++ b/Source/Core/Core/PowerPC/JitCommon/JitBase.cpp
@@ -60,7 +60,8 @@ void JitTrampoline(JitBase& jit, u32 em_address)
   jit.Jit(em_address);
 }
 
-JitBase::JitBase() : m_code_buffer(code_buffer_size)
+JitBase::JitBase(Core::System& system)
+    : m_code_buffer(code_buffer_size), m_system(system), m_ppc_state(system.GetPPCState())
 {
   m_registered_config_callback_id = Config::AddConfigChangedCallback(
       [this] { Core::RunAsCPUThread([this] { RefreshConfig(); }); });
@@ -94,8 +95,8 @@ void JitBase::RefreshConfig()
   m_fprf = Config::Get(Config::MAIN_FPRF);
   m_accurate_nans = Config::Get(Config::MAIN_ACCURATE_NANS);
   m_fastmem_enabled = Config::Get(Config::MAIN_FASTMEM);
-  m_mmu_enabled = Core::System::GetInstance().IsMMUMode();
-  m_pause_on_panic_enabled = Core::System::GetInstance().IsPauseOnPanicMode();
+  m_mmu_enabled = m_system.IsMMUMode();
+  m_pause_on_panic_enabled = m_system.IsPauseOnPanicMode();
   m_accurate_cpu_cache_enabled = Config::Get(Config::MAIN_ACCURATE_CPU_CACHE);
   if (m_accurate_cpu_cache_enabled)
   {
@@ -192,7 +193,7 @@ bool JitBase::HandleStackFault()
   // to reset the guard page.
   // Yeah, it's kind of gross.
   GetBlockCache()->InvalidateICache(0, 0xffffffff, true);
-  Core::System::GetInstance().GetCoreTiming().ForceExceptionCheck(0);
+  m_system.GetCoreTiming().ForceExceptionCheck(0);
   m_cleanup_after_stackfault = true;
 
   return true;
@@ -213,8 +214,7 @@ void JitBase::CleanUpAfterStackFault()
 
 bool JitBase::CanMergeNextInstructions(int count) const
 {
-  auto& system = Core::System::GetInstance();
-  if (system.GetCPU().IsStepping() || js.instructionsLeft < count)
+  if (m_system.GetCPU().IsStepping() || js.instructionsLeft < count)
     return false;
   // Be careful: a breakpoint kills flags in between instructions
   for (int i = 1; i <= count; i++)
@@ -230,8 +230,7 @@ bool JitBase::CanMergeNextInstructions(int count) const
 void JitBase::UpdateMemoryAndExceptionOptions()
 {
   bool any_watchpoints = PowerPC::memchecks.HasAny();
-  jo.fastmem =
-      m_fastmem_enabled && jo.fastmem_arena && (PowerPC::ppcState.msr.DR || !any_watchpoints);
+  jo.fastmem = m_fastmem_enabled && jo.fastmem_arena && (m_ppc_state.msr.DR || !any_watchpoints);
   jo.memcheck = m_mmu_enabled || m_pause_on_panic_enabled || any_watchpoints;
   jo.fp_exceptions = m_enable_float_exceptions;
   jo.div_by_zero_exceptions = m_enable_div_by_zero_exceptions;
diff --git a/Source/Core/Core/PowerPC/JitCommon/JitBase.h b/Source/Core/Core/PowerPC/JitCommon/JitBase.h
index bebb0aa7dd..44a76dd451 100644
--- a/Source/Core/Core/PowerPC/JitCommon/JitBase.h
+++ b/Source/Core/Core/PowerPC/JitCommon/JitBase.h
@@ -17,6 +17,15 @@
 #include "Core/PowerPC/JitCommon/JitCache.h"
 #include "Core/PowerPC/PPCAnalyst.h"
 
+namespace Core
+{
+class System;
+}
+namespace PowerPC
+{
+struct PowerPCState;
+}
+
 //#define JIT_LOG_GENERATED_CODE  // Enables logging of generated code
 //#define JIT_LOG_GPR             // Enables logging of the PPC general purpose regs
 //#define JIT_LOG_FPR             // Enables logging of the PPC floating point regs
@@ -162,7 +171,11 @@ protected:
   bool ShouldHandleFPExceptionForInstruction(const PPCAnalyst::CodeOp* op);
 
 public:
-  JitBase();
+  explicit JitBase(Core::System& system);
+  JitBase(const JitBase&) = delete;
+  JitBase(JitBase&&) = delete;
+  JitBase& operator=(const JitBase&) = delete;
+  JitBase& operator=(JitBase&&) = delete;
   ~JitBase() override;
 
   bool IsDebuggingEnabled() const { return m_enable_debugging; }
@@ -182,6 +195,9 @@ public:
   // This should probably be removed from public:
   JitOptions jo{};
   JitState js{};
+
+  Core::System& m_system;
+  PowerPC::PowerPCState& m_ppc_state;
 };
 
 void JitTrampoline(JitBase& jit, u32 em_address);
diff --git a/Source/Core/Core/PowerPC/JitInterface.cpp b/Source/Core/Core/PowerPC/JitInterface.cpp
index d19e3fd442..ee7493cac5 100644
--- a/Source/Core/Core/PowerPC/JitInterface.cpp
+++ b/Source/Core/Core/PowerPC/JitInterface.cpp
@@ -54,20 +54,22 @@ void DoState(PointerWrap& p)
 }
 CPUCoreBase* InitJitCore(PowerPC::CPUCore core)
 {
+  auto& system = Core::System::GetInstance();
+
   switch (core)
   {
 #if _M_X86
   case PowerPC::CPUCore::JIT64:
-    g_jit = new Jit64();
+    g_jit = new Jit64(system);
     break;
 #endif
 #if _M_ARM_64
   case PowerPC::CPUCore::JITARM64:
-    g_jit = new JitArm64();
+    g_jit = new JitArm64(system);
     break;
 #endif
   case PowerPC::CPUCore::CachedInterpreter:
-    g_jit = new CachedInterpreter();
+    g_jit = new CachedInterpreter(system);
     break;
 
   default:
diff --git a/Source/UnitTests/Core/PageFaultTest.cpp b/Source/UnitTests/Core/PageFaultTest.cpp
index e873a28e73..be8de724c1 100644
--- a/Source/UnitTests/Core/PageFaultTest.cpp
+++ b/Source/UnitTests/Core/PageFaultTest.cpp
@@ -9,6 +9,7 @@
 #include "Core/MemTools.h"
 #include "Core/PowerPC/JitCommon/JitBase.h"
 #include "Core/PowerPC/JitInterface.h"
+#include "Core/System.h"
 
 // include order is important
 #include <gtest/gtest.h>  // NOLINT
@@ -25,6 +26,8 @@ enum
 class PageFaultFakeJit : public JitBase
 {
 public:
+  explicit PageFaultFakeJit(Core::System& system) : JitBase(system) {}
+
   // CPUCoreBase methods
   void Init() override {}
   void Shutdown() override {}
@@ -72,7 +75,7 @@ TEST(PageFault, PageFault)
   EXPECT_NE(data, nullptr);
   Common::WriteProtectMemory(data, PAGE_GRAN, false);
 
-  PageFaultFakeJit pfjit;
+  PageFaultFakeJit pfjit(Core::System::GetInstance());
   JitInterface::SetJit(&pfjit);
   pfjit.m_data = data;
 
diff --git a/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp b/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp
index d11a1da38b..bbf6445357 100644
--- a/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp
+++ b/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp
@@ -11,6 +11,7 @@
 #include "Core/PowerPC/Jit64/Jit.h"
 #include "Core/PowerPC/Jit64Common/Jit64AsmCommon.h"
 #include "Core/PowerPC/Jit64Common/Jit64PowerPCState.h"
+#include "Core/System.h"
 
 #include "../TestValues.h"
 
@@ -22,7 +23,7 @@ namespace
 class TestCommonAsmRoutines : public CommonAsmRoutines
 {
 public:
-  TestCommonAsmRoutines() : CommonAsmRoutines(jit)
+  explicit TestCommonAsmRoutines(Core::System& system) : CommonAsmRoutines(jit), jit(system)
   {
     using namespace Gen;
 
@@ -51,7 +52,7 @@ public:
 
 TEST(Jit64, ConvertDoubleToSingle)
 {
-  TestCommonAsmRoutines routines;
+  TestCommonAsmRoutines routines(Core::System::GetInstance());
 
   for (const u64 input : double_test_values)
   {
diff --git a/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp b/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp
index 65677ad53a..d0ce6b3653 100644
--- a/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp
+++ b/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp
@@ -11,6 +11,7 @@
 #include "Core/PowerPC/Jit64/Jit.h"
 #include "Core/PowerPC/Jit64Common/Jit64AsmCommon.h"
 #include "Core/PowerPC/Jit64Common/Jit64PowerPCState.h"
+#include "Core/System.h"
 
 #include "../TestValues.h"
 
@@ -22,7 +23,7 @@ namespace
 class TestCommonAsmRoutines : public CommonAsmRoutines
 {
 public:
-  TestCommonAsmRoutines() : CommonAsmRoutines(jit)
+  explicit TestCommonAsmRoutines(Core::System& system) : CommonAsmRoutines(jit), jit(system)
   {
     using namespace Gen;
 
@@ -58,7 +59,7 @@ public:
 
 TEST(Jit64, Frsqrte)
 {
-  TestCommonAsmRoutines routines;
+  TestCommonAsmRoutines routines(Core::System::GetInstance());
 
   UReg_FPSCR fpscr;
 
diff --git a/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp b/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp
index 12da215c96..0e87fddcda 100644
--- a/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp
+++ b/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp
@@ -9,6 +9,7 @@
 #include "Common/FPURoundMode.h"
 #include "Core/PowerPC/Interpreter/Interpreter_FPUtils.h"
 #include "Core/PowerPC/JitArm64/Jit.h"
+#include "Core/System.h"
 
 #include "../TestValues.h"
 
@@ -30,7 +31,7 @@ struct Pair
 class TestConversion : private JitArm64
 {
 public:
-  TestConversion()
+  explicit TestConversion(Core::System& system) : JitArm64(system)
   {
     const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
 
@@ -119,7 +120,7 @@ private:
 
 TEST(JitArm64, ConvertDoubleToSingle)
 {
-  TestConversion test;
+  TestConversion test(Core::System::GetInstance());
 
   for (const u64 input : double_test_values)
   {
@@ -154,7 +155,7 @@ TEST(JitArm64, ConvertDoubleToSingle)
 
 TEST(JitArm64, ConvertSingleToDouble)
 {
-  TestConversion test;
+  TestConversion test(Core::System::GetInstance());
 
   for (const u32 input : single_test_values)
   {
diff --git a/Source/UnitTests/Core/PowerPC/JitArm64/FPRF.cpp b/Source/UnitTests/Core/PowerPC/JitArm64/FPRF.cpp
index b0e594081a..1bc22c3263 100644
--- a/Source/UnitTests/Core/PowerPC/JitArm64/FPRF.cpp
+++ b/Source/UnitTests/Core/PowerPC/JitArm64/FPRF.cpp
@@ -10,6 +10,7 @@
 #include "Core/PowerPC/Interpreter/Interpreter_FPUtils.h"
 #include "Core/PowerPC/JitArm64/Jit.h"
 #include "Core/PowerPC/PowerPC.h"
+#include "Core/System.h"
 
 #include "../TestValues.h"
 
@@ -22,7 +23,7 @@ using namespace Arm64Gen;
 class TestFPRF : public JitArm64
 {
 public:
-  TestFPRF()
+  explicit TestFPRF(Core::System& system) : JitArm64(system)
   {
     const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
 
@@ -67,7 +68,7 @@ static u32 RunUpdateFPRF(const std::function<void()>& f)
 
 TEST(JitArm64, FPRF)
 {
-  TestFPRF test;
+  TestFPRF test(Core::System::GetInstance());
 
   for (const u64 double_input : double_test_values)
   {
diff --git a/Source/UnitTests/Core/PowerPC/JitArm64/Fres.cpp b/Source/UnitTests/Core/PowerPC/JitArm64/Fres.cpp
index 8034721c94..ea82ea9c98 100644
--- a/Source/UnitTests/Core/PowerPC/JitArm64/Fres.cpp
+++ b/Source/UnitTests/Core/PowerPC/JitArm64/Fres.cpp
@@ -9,6 +9,7 @@
 #include "Core/PowerPC/Interpreter/Interpreter_FPUtils.h"
 #include "Core/PowerPC/JitArm64/Jit.h"
 #include "Core/PowerPC/PowerPC.h"
+#include "Core/System.h"
 
 #include "../TestValues.h"
 
@@ -21,7 +22,7 @@ using namespace Arm64Gen;
 class TestFres : public JitArm64
 {
 public:
-  TestFres()
+  explicit TestFres(Core::System& system) : JitArm64(system)
   {
     const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
 
@@ -50,7 +51,7 @@ public:
 
 TEST(JitArm64, Fres)
 {
-  TestFres test;
+  TestFres test(Core::System::GetInstance());
 
   for (const u64 ivalue : double_test_values)
   {
diff --git a/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp b/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp
index 1b126abea5..af15857476 100644
--- a/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp
+++ b/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp
@@ -9,6 +9,7 @@
 #include "Core/PowerPC/Interpreter/Interpreter_FPUtils.h"
 #include "Core/PowerPC/JitArm64/Jit.h"
 #include "Core/PowerPC/PowerPC.h"
+#include "Core/System.h"
 
 #include "../TestValues.h"
 
@@ -21,7 +22,7 @@ using namespace Arm64Gen;
 class TestFrsqrte : public JitArm64
 {
 public:
-  TestFrsqrte()
+  explicit TestFrsqrte(Core::System& system) : JitArm64(system)
   {
     const Common::ScopedJITPageWriteAndNoExecute enable_jit_page_writes;
 
@@ -50,7 +51,7 @@ public:
 
 TEST(JitArm64, Frsqrte)
 {
-  TestFrsqrte test;
+  TestFrsqrte test(Core::System::GetInstance());
 
   for (const u64 ivalue : double_test_values)
   {