diff --git a/src/vscript/languages/squirrel_re/include/sqobject.h b/src/vscript/languages/squirrel_re/include/sqobject.h
index c9c2498a..0978d309 100644
--- a/src/vscript/languages/squirrel_re/include/sqobject.h
+++ b/src/vscript/languages/squirrel_re/include/sqobject.h
@@ -9,7 +9,7 @@ struct SQSharedState;
 
 struct SQRefCounted
 {
-	SQRefCounted() { _uiRef = 0; _weakref = NULL; _globalnum = NULL; unk2 = NULL; }
+	SQRefCounted() { _uiRef = 0; _weakref = NULL; _context = NULL; _extraData = NULL; }
 
 	virtual ~SQRefCounted();
 	virtual void Release() = 0;
@@ -19,10 +19,12 @@ struct SQRefCounted
 	SQUnsignedInteger _uiRef;
 	SQObject* _weakref; // this is not an sqobject!
 
-	// index into the global array; see [r5apex + B1C7DE] for assignment
-	// and [r5apex + B2CAF8] for usage
-	SQInteger _globalnum;
-	void* unk2; // unknown
+	// vm context used to track total memory usage of the vm, indexes
+	// into  s_perVmScriptMemUsage in SQWeakRef::Release(), see:
+	// - r5apex + B1C7DE] for assignment.
+	// - [r5apex + B2CAF8] for usage.
+	SQInteger _context;
+	void* _extraData; // unknown
 };
 
 struct SQWeakRef : SQRefCounted
diff --git a/src/vscript/languages/squirrel_re/include/sqvm.h b/src/vscript/languages/squirrel_re/include/sqvm.h
index 0bcbd025..794b19e2 100644
--- a/src/vscript/languages/squirrel_re/include/sqvm.h
+++ b/src/vscript/languages/squirrel_re/include/sqvm.h
@@ -39,12 +39,12 @@ struct SQVM : public CHAINABLE_OBJ
 	// ================================= //
 	_BYTE gap1C[8];
 	void* _callstack;
-	int _unk;
-	int _bottom;
+	SQInteger _stacklevel;
+	SQInteger _bottom;
 	SQObjectPtr* _stackbase;
 	SQSharedState* _sharedstate;
 	char gap68[16];
-	int _top;
+	SQInteger _top;
 	sqvector<SQObjectPtr> _stack;
 	char gap_98[24];
 	SQObjectPtr temp_reg;
@@ -52,11 +52,12 @@ struct SQVM : public CHAINABLE_OBJ
 	SQObjectPtr _roottable;
 	SQObjectPtr _lasterror;
 	char gap_100[48];
-	int _nnativecalls;
+	SQInteger _nnativecalls;
 	SQBool _suspended;
 	SQBool _suspended_root;
-	char gap_13C[8];
-	int suspended_traps;
+	SQInteger _callsstacksize;
+	SQInteger _alloccallsstacksize;
+	SQInteger suspended_traps;
 };
 static_assert(offsetof(SQVM, _top) == 0x78);
 static_assert(offsetof(SQVM, _nnativecalls) == 0x130);