1 files changed, 33 insertions, 2 deletions
diff --git a/apps/tile/main.mu b/apps/tile/main.mu
index d6dad159..9a83ed5a 100644
--- a/apps/tile/main.mu
+++ b/apps/tile/main.mu
@@ -1,3 +1,34 @@
-fn main -> exit-status/ebx: int {
-  run-tests
+fn main args-on-stack: (addr array addr array byte) -> exit-status/ebx: int {
+  var args/eax: (addr array addr array byte) <- copy args-on-stack
+  var len/ecx: int <- length args
+  $main-body: {
+    # if no args, run in interactive mode
+    compare len, 1
+    {
+      break-if->
+      exit-status <- interactive args-on-stack
+      break $main-body
+    }
+    # else if single arg is 'test', run tests
+    compare len, 2
+    {
+      break-if-!=
+      var tmp/ecx: (addr addr array byte) <- index args, 1
+      var tmp2/eax: boolean <- string-equal? *tmp, "test"
+      compare tmp2, 0
+      {
+        break-if-=
+        run-tests
+        exit-status <- copy 0  # TODO: get at Num-test-failures somehow
+        break $main-body
+      }
+    }
+    # otherwise error message
+    print-string-to-real-screen "usage: tile\n"
+    print-string-to-real-screen "    or tile test\n"
+    exit-status <- copy 1
+  }
+}
+
+fn interactive args: (addr array addr array byte) -> exit-status/ebx: int {
 }