diff --git a/Core/memory.c b/Core/memory.c
index c481ad2..7e74a80 100644
--- a/Core/memory.c
+++ b/Core/memory.c
@@ -422,6 +422,11 @@ static GB_read_function_t * const read_map[] =
     read_ram,         read_high_memory,                             /* EXXX FXXX */
 };
 
+void GB_set_read_memory_callback(GB_gameboy_t *gb, GB_read_memory_callback_t callback)
+{
+    gb->read_memory_callback = callback;
+}
+
 uint8_t GB_read_memory(GB_gameboy_t *gb, uint16_t addr)
 {
     if (gb->n_watchpoints) {