broke apart main.c into delay.* and isr_vector.*

1 files changed, 9 insertions, 0 deletions

diff --git a/system-clock/src/delay.c b/system-clock/src/delay.c
new file mode 100644
index 0000000..077d1ff
--- /dev/null
+++ b/system-clock/src/delay.c
@@ -0,0 +1,9 @@
+#include "delay.h"
+
+void delay(uint32_t delay)
+{
+  while (delay --) {
+    /* needed to keep the compiler from optimizing away the loop. */
+    asm volatile ("");
+  }
+}