Refactor many other things

src/backend/Scheduler.cpp

@@ -25,7 +25,7 @@ u64 Scheduler::Remove(EventType type) {
   return 0;
 }
 
-void Scheduler::Tick(u64 t, n64::Mem& mem, n64::Registers& regs) {
+void Scheduler::Tick(u64 t, n64::Mem& mem) {
   ticks += t;
   n64::MI& mi = mem.mmio.mi;
   n64::SI& si = mem.mmio.si;
@@ -34,7 +34,7 @@ void Scheduler::Tick(u64 t, n64::Mem& mem, n64::Registers& regs) {
   while(ticks >= events.top().time) {
     switch(auto type = events.top().type) {
       case SI_DMA:
-        si.DMA(mem, regs);
+        si.DMA();
         break;
       case PI_DMA_COMPLETE:
         mi.InterruptRaise(n64::MI::Interrupt::PI);