diff --git a/microfx_src/include/microfx/microfx.h b/microfx_src/include/microfx/microfx.h
index ccb4ffb..7dbb9bf 100644
--- a/microfx_src/include/microfx/microfx.h
+++ b/microfx_src/include/microfx/microfx.h
@@ -108,7 +108,7 @@ void tsleep_ms(int ms);
 Get 1/128 seconds ticks since midnight.
 */
 
-void tgetticks(void);
+int tgetticks(void);
 
 /* int tiselapsed(int start, int ms);
 
@@ -119,5 +119,14 @@ Returns 1 if ms is elapsed and 0 if it is not.
 
 int tiselapsed(int start, int ms);
 
-#endif
+/******* CPU *******/
 
+/* void csleep(void);
+
+Uses asm sleep instruction.
+Can be used to reduce battery usage of some loops.
+*/
+
+void csleep(void);
+
+#endif
diff --git a/microfx_src/src/microfx.c b/microfx_src/src/microfx.c
index 4c3bb6e..ab21aa4 100644
--- a/microfx_src/src/microfx.c
+++ b/microfx_src/src/microfx.c
@@ -104,11 +104,16 @@ void tsleep_ms(int ms) {
 	_Sleep(ms);
 }
 
-void tgetticks(void) {
-	_RTC_GetTicks();
+int tgetticks(void) {
+	return _RTC_GetTicks();
 }
 
 int tiselapsed(int start, int ms) {
 	return _RTC_Elapsed_ms(start, ms);
 }
 
+/******* CPU *******/
+
+void csleep(void) {
+	__asm__("sleep");
+}
diff --git a/template/lib/include/microfx/microfx.h b/template/lib/include/microfx/microfx.h
index ccb4ffb..7dbb9bf 100644
--- a/template/lib/include/microfx/microfx.h
+++ b/template/lib/include/microfx/microfx.h
@@ -108,7 +108,7 @@ void tsleep_ms(int ms);
 Get 1/128 seconds ticks since midnight.
 */
 
-void tgetticks(void);
+int tgetticks(void);
 
 /* int tiselapsed(int start, int ms);
 
@@ -119,5 +119,14 @@ Returns 1 if ms is elapsed and 0 if it is not.
 
 int tiselapsed(int start, int ms);
 
-#endif
+/******* CPU *******/
 
+/* void csleep(void);
+
+Uses asm sleep instruction.
+Can be used to reduce battery usage of some loops.
+*/
+
+void csleep(void);
+
+#endif
diff --git a/template/lib/libMicrofx.a b/template/lib/libMicrofx.a
index 48126ab..0bea3d7 100644
Binary files a/template/lib/libMicrofx.a and b/template/lib/libMicrofx.a differ