diff --git a/asmdiff.sh b/asmdiff.sh
new file mode 100644
index 0000000000..1d2141c32a
--- /dev/null
+++ b/asmdiff.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+
+OBJDUMP="$DEVKITARM/bin/arm-none-eabi-objdump -D -bbinary -marmv4t -Mforce-thumb"
+OPTIONS="--start-address=$(($1)) --stop-address=$(($1 + $2))"
+$OBJDUMP $OPTIONS baserom.gba > baserom.dump
+$OBJDUMP $OPTIONS pokeemerald.gba > pokeemerald.dump
+diff baserom.dump pokeemerald.dump