make larger chance to see a second

2018-03-25 11:11:11 +08:00 · 2018-03-25 11:11:11 +08:00 · 27c8cdb9ce
parent 4aa815349f
commit 27c8cdb9ce
1 changed files with 1 additions and 0 deletions
--- a/am/arch/x86-qemu/src/ioe.cpp
+++ b/am/arch/x86-qemu/src/ioe.cpp
@ -81,6 +81,7 @@ static int read_rtc(int reg) {
 static void wait_sec() {
  while (1) {
    int volatile s1 = read_rtc(0);
+    for (int volatile i = 0; i < 1000; i++) ;
    int volatile s2 = read_rtc(0);
    if (s1 != s2) {
      return;