add simple cache benchmark application

1 files changed, 12 insertions, 1 deletions

diff --git a/include/esp8266/driver/uptime.h b/include/esp8266/driver/uptime.h
index 7da10cb..21740c9 100644
--- a/include/esp8266/driver/uptime.h
+++ b/include/esp8266/driver/uptime.h
@@ -1,6 +1,10 @@
 #ifndef UPTIME_H
 #define UPTIME_H
 
+extern "C" {
+#include "osapi.h"
+#include "user_interface.h"
+}
 #include "c_types.h"
 
 class Uptime {
@@ -9,7 +13,14 @@ class Uptime {
 
 	public:
 		Uptime () {}
-		uint32_t get();
+		inline uint32_t get_us() { return system_get_time(); }
+
+		inline uint32_t get_cycles()
+		{
+			uint32_t ccount;
+			asm volatile ("esync; rsr %0,ccount":"=a" (ccount));
+			return ccount;
+		}
 };
 
 extern Uptime uptime;