arm64/mem: Add initial software page table walker

Introduce a software-based page table walker for the arm64 MMU
emulation. This is foundational component for handling GVA-GPA
translations when a request missses the (future) software TLB.

For now, it handles only Page descriptors and does not yet support Block
descriptors or permission checks. These will be added in subsequent
patches.

Signed-off-by: Ronald Caesar <github43132@proton.me>

CMakeLists.txt

@@ -12,6 +12,7 @@ if (NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Debug)
 endif()
 
+
 # Optimizations
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
 if (WIN32)
@@ -35,6 +36,14 @@ add_executable(Pound
   ${Core}
 )
 
+target_compile_options(Pound PRIVATE -Wall -Wpedantic
+-Wshadow
+-Wpointer-arith
+-Wcast-qual
+-Wcast-align
+-Wconversion
+)
+
 target_precompile_headers(Pound PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/core/Base/Types.h)
 
 # Link libraries