Emulator cleanup, add AR conditionals

include/action_replay.hpp

@@ -1,5 +1,6 @@
 #pragma once
 #include <array>
+#include <bitset>
 #include <vector>
 
 #include "helpers.hpp"
@@ -7,6 +8,7 @@
 
 class ActionReplay {
 	using Cheat = std::vector<u32>;  // A cheat is really just a bunch of 64-bit opcodes neatly encoded into 32-bit chunks
+	static constexpr size_t ifStackSize = 32; // TODO: How big is this, really?
 
 	u32 offset1, offset2;    // Memory offset registers. Non-persistent.
 	u32 data1, data2;        // Data offset registers. Non-persistent.
@@ -15,7 +17,10 @@ class ActionReplay {
 	// When an instruction does not specify which offset or data register to use, we use the "active" one
 	// Which is by default #1 and may be changed by certain AR operations
 	u32 *activeOffset, *activeData, *activeStorage;
-	
+	u32 ifStackIndex;    // Our index in the if stack. Shows how many entries we have at the moment.
+	u32 loopStackIndex;  // Same but for loops
+	std::bitset<32> ifStack;
+
 	// Program counter
 	u32 pc = 0;
 	Memory& mem;