Detect the VGA card before setting mode 0x13

1 files changed, 5 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index c0e7dc3..672a478 100644
--- a/src/main.c
+++ b/src/main.c
@@ -17,7 +17,11 @@ int main(int argc, char *argv[])
     atexit(keyb_free);
 
     /* set VGA 320x200, 256 col */
-    set_mode(0x13);
+    if (!set_mode(0x13))
+    {
+        fprintf(stderr, "ERROR: failed to init the VGA card\n");
+        return 1;
+    }
 
     set_palette(binary_palette_start);