Implement a new JIT for Arm devices (#6057)

* Implement a new JIT for Arm devices

* Auto-format

* Make a lot of Assembler members read-only

* More read-only

* Fix more warnings

* ObjectDisposedException.ThrowIf

* New JIT cache for platforms that enforce W^X, currently unused

* Remove unused using

* Fix assert

* Pass memory manager type around

* Safe memory manager mode support + other improvements

* Actual safe memory manager mode masking support

* PR feedback

src/Ryujinx.Cpu/LightningJit/LightningJitCpuContext.cs

@@ -0,0 +1,58 @@
+using ARMeilleure.Memory;
+using Ryujinx.Cpu.Jit;
+using Ryujinx.Cpu.LightningJit.State;
+
+namespace Ryujinx.Cpu.LightningJit
+{
+    class LightningJitCpuContext : ICpuContext
+    {
+        private readonly ITickSource _tickSource;
+        private readonly Translator _translator;
+
+        public LightningJitCpuContext(ITickSource tickSource, IMemoryManager memory, bool for64Bit)
+        {
+            _tickSource = tickSource;
+            _translator = new Translator(memory, for64Bit);
+            memory.UnmapEvent += UnmapHandler;
+        }
+
+        private void UnmapHandler(ulong address, ulong size)
+        {
+            _translator.InvalidateJitCacheRegion(address, size);
+        }
+
+        /// <inheritdoc/>
+        public IExecutionContext CreateExecutionContext(ExceptionCallbacks exceptionCallbacks)
+        {
+            return new ExecutionContext(new JitMemoryAllocator(), _tickSource, exceptionCallbacks);
+        }
+
+        /// <inheritdoc/>
+        public void Execute(IExecutionContext context, ulong address)
+        {
+            _translator.Execute((ExecutionContext)context, address);
+        }
+
+        /// <inheritdoc/>
+        public void InvalidateCacheRegion(ulong address, ulong size)
+        {
+            _translator.InvalidateJitCacheRegion(address, size);
+        }
+
+        /// <inheritdoc/>
+        public IDiskCacheLoadState LoadDiskCache(string titleIdText, string displayVersion, bool enabled)
+        {
+            return new DummyDiskCacheLoadState();
+        }
+
+        /// <inheritdoc/>
+        public void PrepareCodeRange(ulong address, ulong size)
+        {
+        }
+
+        public void Dispose()
+        {
+            _translator.Dispose();
+        }
+    }
+}