diff --git a/CMakeLists.txt b/CMakeLists.txt
index 169cedcf..c6dd4c53 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,7 +47,7 @@ add_subdirectory(third_party/cryptopp)
 if (CMAKE_SYSTEM_PROCESSOR STREQUAL "AMD64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "x86-64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
     set(HOST_X64 TRUE)
     add_subdirectory(third_party/xbyak) # Add xbyak submodule for x86 JITs
-    include_directories(third_party/xbyak/xbyak)
+    include_directories(third_party/xbyak)
     add_compile_definitions(PANDA3DS_DYNAPICA_SUPPORTED)
     add_compile_definitions(PANDA3DS_X64_HOST)
 else()
@@ -119,6 +119,7 @@ set(HEADER_FILES include/emulator.hpp include/helpers.hpp include/opengl.hpp inc
                  include/renderer_gl/textures.hpp include/colour.hpp include/services/y2r.hpp include/services/cam.hpp
                  include/services/ldr_ro.hpp include/ipc.hpp include/services/act.hpp include/services/nfc.hpp
                  include/system_models.hpp include/services/dlp_srvr.hpp include/PICA/dynapica/pica_recs.hpp
+                 include/PICA/dynapica/x64_regs.hpp include/PICA/dynapica/vertex_loader_rec.hpp
 )
 
 set(THIRD_PARTY_SOURCE_FILES third_party/imgui/imgui.cpp
diff --git a/include/PICA/dynapica/pica_recs.hpp b/include/PICA/dynapica/pica_recs.hpp
index 89daae3a..acfd226e 100644
--- a/include/PICA/dynapica/pica_recs.hpp
+++ b/include/PICA/dynapica/pica_recs.hpp
@@ -1,6 +1,13 @@
 #pragma once
 #include "helpers.hpp"
+#include "vertex_loader_rec.hpp"
+
+// Common file for our PICA JITs (From vertex config -> CPU assembly and from PICA shader -> CPU assembly)
 
 namespace Dynapica {
-
+#ifdef PANDA3DS_DYNAPICA_SUPPORTED
+	static constexpr bool supported() { return true; }
+#else
+	static constexpr bool supported() { return false; }
+#endif
 }
\ No newline at end of file
diff --git a/include/PICA/dynapica/vertex_loader_rec.hpp b/include/PICA/dynapica/vertex_loader_rec.hpp
new file mode 100644
index 00000000..e69de29b
diff --git a/include/PICA/dynapica/x64_regs.hpp b/include/PICA/dynapica/x64_regs.hpp
new file mode 100644
index 00000000..47bcec7d
--- /dev/null
+++ b/include/PICA/dynapica/x64_regs.hpp
@@ -0,0 +1,39 @@
+#pragma once
+
+#ifdef PANDA3DS_X64_HOST
+#include "xbyak/xbyak.h"
+using namespace Xbyak;
+using namespace Xbyak::util;
+
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32) && !defined(__CYGWIN__)
+constexpr Reg32 arg1 = ecx;  // register where first arg is stored
+constexpr Reg32 arg2 = edx;  // register where second arg is stored
+constexpr Reg32 arg3 = r8d;  // register where third arg is stored
+constexpr Reg32 arg4 = r9d;  // register where fourth arg is stored
+
+// Similar for floating point and vector arguemnts.
+constexpr Xmm arg1f = xmm0;
+constexpr Xmm arg2f = xmm1;
+constexpr Xmm arg3f = xmm2;
+constexpr Xmm arg4f = xmm3;
+
+constexpr bool isWindows() { return true; }
+
+#else  // System V calling convention
+constexpr Reg32 arg1 = edi;
+constexpr Reg32 arg2 = esi;
+constexpr Reg32 arg3 = edx;
+constexpr Reg32 arg4 = ecx;
+
+constexpr Xmm arg1f = xmm0;
+constexpr Xmm arg2f = xmm1;
+constexpr Xmm arg3f = xmm2;
+constexpr Xmm arg4f = xmm3;
+constexpr Xmm arg5f = xmm4;
+constexpr Xmm arg6f = xmm5;
+constexpr Xmm arg7f = xmm6;
+constexpr Xmm arg8f = xmm7;
+
+constexpr bool isWindows() { return false; }
+#endif
+#endif  // PANDA3DS_X64_HOST
\ No newline at end of file