add ppf patching function

patchimage.sh

@@ -141,6 +141,20 @@ patchimage_ips () {
 	fi
 }
 
+patchimage_ppf () {
+	show_notes
+	check_input_rom
+
+	if [[ -f ${PATCH} ]]; then
+		ext="${ROM/*.}"
+		cp "${ROM}" "${GAMENAME}.${ext}"
+		"${PPF}" a "${PATCH}" "${GAMENAME}.${ext}" || exit 51
+	else
+		echo -e "error: patch (${PATCH}) could not be found"
+		exit 21
+	fi
+}
+
 patchimage_hans () {
 
 	show_notes
@@ -408,6 +422,10 @@ for game in ${GAME[@]}; do
 			patchimage_ips
 		;;
 
+		"PPF" )
+			patchimage_ppf
+		;;
+
 		"HANS" )
 			patchimage_hans
 		;;