diff --git a/src/vm_segment.c b/src/vm_segment.c
index 93aa108..14d8b04 100644
--- a/src/vm_segment.c
+++ b/src/vm_segment.c
@@ -95,6 +95,12 @@ vm_segment_set(vm_segment *segment, size_t index, vm_8bit value)
         return ERR_OOB;
     }
 
+    // Check if we have a write mapper
+    if (segment->write_table[index]) {
+        segment->write_table[index](segment, index, value);
+        return OK;
+    }
+
     segment->memory[index] = value;
     return OK;
 }
@@ -117,6 +123,11 @@ vm_segment_get(vm_segment *segment, size_t index)
         exit(1);
     }
 
+    // We may have a read mapper for this address
+    if (segment->read_table[index]) {
+        return segment->read_table[index](segment, index);
+    }
+
     return segment->memory[index];
 }