rem: void WAIT_ENGINE_IDLE(void) { uint32 count;  count = si->engine.count;
add: void WAIT_ENGINE_IDLE(void) {
context: void WAIT_ENGINE_IDLE(void) {	uint32 count;	/*wait for the engine to be totally idle*/	count = si->engine.count;	nv_acc_wait_idle();	si->engine.last_idle = count;}