Function InArena

src/heap.cpp:43–45

}

inline bool InArena(uint32_t guest_addr) {
    return guest_addr >= g_arena_base && guest_addr < g_arena_end;
}

// lhHeapRealloc replacement — unified alloc/realloc/free (Lua allocator protocol)
//   r3 = heap (ignored), r4 = old_ptr, r5 = old_size, r6 = new_size