fix a problem with end. make uartputc() wait until h/w is ready.

1 files changed, 1 insertions, 1 deletions

diff --git a/start.c b/start.c
index 5167ab4..b7af38a 100644
--- a/start.c
+++ b/start.c
@@ -6,7 +6,7 @@
 void main();
 
 // entry.S uses this as the initial stack.
-char stack0[4096];
+__attribute__ ((aligned (16))) char stack0[4096];
 
 // entry.S jumps here in machine mode on stack0.
 void