chore: Add helper script to compare hex files against each other in o…

…rder to help prevent regressions during cosmetic changes

.gitignore

@@ -1,2 +1,3 @@
 /build
 /tools/.wine
+*.diff

tools/compare.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+SOURCE_DIR=$1
+TARGET_DIR=$2
+
+FILES=$(ls $SOURCE_DIR)
+
+TOTAL=0
+MATCHING=0
+EXISTING=0
+DIFFERENT=0
+
+for FILE in ${FILES}; do
+  TOTAL=$((TOTAL+1))
+  if [ -f "${TARGET_DIR}/${FILE}" ]; then
+    EXISTING=$((EXISTING+1))
+    diff ${SOURCE_DIR}/${FILE} ${TARGET_DIR}/${FILE} > files.diff
+    if [ $? -eq 0 ]; then
+      MATCHING=$((MATCHING+1))
+    else
+      DIFFERENT=$((DIFFERENT+1))
+    fi
+  fi
+done
+
+echo "Total files: ${TOTAL}; New files: $((TOTAL - EXISTING))"
+if [ $MATCHING -eq $EXISTING ]; then
+  echo "All existing files match!"
+else
+  echo Different: ${DIFFERENT}/${EXISTING}
+fi