diff --git a/fox32rom.def b/fox32rom.def
index 83076a8..3e24ebb 100644
--- a/fox32rom.def
+++ b/fox32rom.def
@@ -49,6 +49,12 @@ menu_update_event:                        jmp [0xF004401C]
 read_sector:                              jmp [0xF0045000]
 write_sector:                             jmp [0xF0045004]
 
+; memory copy/compare jump table
+copy_memory_bytes:                        jmp [0xF0046000]
+copy_memory_words:                        jmp [0xF0046004]
+compare_memory_bytes:                     jmp [0xF0046008]
+compare_memory_words:                     jmp [0xF004600C]
+
 ; event types
 const MOUSE_CLICK_EVENT_TYPE:    0x00000000
 const MENU_BAR_CLICK_EVENT_TYPE: 0x00000001
diff --git a/main.asm b/main.asm
index 684b9f6..4c0205a 100644
--- a/main.asm
+++ b/main.asm
@@ -200,6 +200,13 @@ get_rom_version:
     data.32 read_sector
     data.32 write_sector
 
+    ; memory copy/compare jump table
+    org.pad 0xF0046000
+    data.32 copy_memory_bytes
+    data.32 copy_memory_words
+    data.32 compare_memory_bytes
+    data.32 compare_memory_words
+
     org.pad 0xF004F000
 standard_font_width:
     data.16 8