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/Arm64/ImmUtils.cs

@@ -0,0 +1,20 @@
+namespace Ryujinx.Cpu.LightningJit.Arm64
+{
+    static class ImmUtils
+    {
+        public static int ExtractSImm14Times4(uint encoding)
+        {
+            return ((int)(encoding >> 5) << 18) >> 16;
+        }
+
+        public static int ExtractSImm19Times4(uint encoding)
+        {
+            return ((int)(encoding >> 5) << 13) >> 11;
+        }
+
+        public static int ExtractSImm26Times4(uint encoding)
+        {
+            return (int)(encoding << 6) >> 4;
+        }
+    }
+}