CPU/NewRec: Fix lui/mfc0 not getting called in CPU PGXP mode

src/core/cpu_core.h

@@ -47,6 +47,20 @@ union CacheControl
   BitField<u32, bool, 11, 1> icache_enable;
 };
 
+struct PGXP_value
+{
+  float x;
+  float y;
+  float z;
+  union
+  {
+    u32 flags;
+    u8 compFlags[4];
+    u16 halfFlags[2];
+  };
+  u32 value;
+};
+
 struct State
 {
   // ticks the CPU has executed
@@ -93,6 +107,12 @@ struct State
 
   std::array<u8, SCRATCHPAD_SIZE> scratchpad = {};
 
+  PGXP_value pgxp_gpr[32];
+  PGXP_value pgxp_hi;
+  PGXP_value pgxp_lo;
+  PGXP_value pgxp_cop0[32];
+  PGXP_value pgxp_gte[64];
+
   static constexpr u32 GPRRegisterOffset(u32 index) { return offsetof(State, regs.r) + (sizeof(u32) * index); }
   static constexpr u32 GTERegisterOffset(u32 index) { return offsetof(State, gte_regs.r32) + (sizeof(u32) * index); }
 };