1 files changed, 6 insertions, 2 deletions
diff --git a/main.myr b/main.myr
index 9d22f46..26dfca9 100644
--- a/main.myr
+++ b/main.myr
@@ -89,7 +89,7 @@ const getkeys = {
 	]
 }
 
-const main = {
+const main = {args : byte[:][:]
 	var win, r, tex
 	sdl.init(sdl.INIT_VIDEO)
 	win = sdl.mkwin(("chip\0" : byte#),
@@ -112,8 +112,12 @@ const main = {
 	var sound : uint8 = 0
 	var keys
 
+	if args.len != 2
+		std.fatal("usage: {} [ROM]\n", args[0])
+	;;
+
 	clrscr(&gfx, scrsz)
-	loadprg(&mem, "/tmp/UFO")
+	loadprg(&mem, args[1])
 	loadfnt(&mem)
 
 	var opcode, arg