tty: putc support '\n'

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/tty.c b/kernel/tty.c
index 628a21e..5de2f3b 100644
--- a/kernel/tty.c
+++ b/kernel/tty.c
@@ -56,14 +56,14 @@ void tty_putc(char c)
     if (c == '\n')
     {
         tty_col = 0;
-        tty_row++;
+        if (++tty_row == VGA_HEIGHT)
+            tty_row = 0;
     } else {
         tty_putc_at(c, tty_color, tty_col, tty_row);
         if (++tty_col == VGA_WIDTH) {
             tty_col = 0;
-            if (++tty_row == VGA_HEIGHT) {
+            if (++tty_row == VGA_HEIGHT)
                 tty_row = 0;
-            }
         }
     }
 }