Remove all special treatment of the CPU class

native/projects/riscv/include/riscv/Bus.hpp

@@ -92,11 +92,10 @@ namespace riscv {
 			virtual void Poke(AddressT address, u32 value) = 0;
 		};
 
-		Bus(CPU* cpu);
+		/// Bus destructor.
+		/// This frees the memory for all devices.
 		~Bus();
 
-		CPU* GetCPU() { return attachedCpu; }
-
 		/// Attach a device to the bus.
 		///
 		/// Note that once this function is called (and the device is successfully added),
@@ -106,8 +105,8 @@ namespace riscv {
 		/// This function returns true if the device was able to be put on the bus.
 		/// This function returns false in the following error cases:
 		/// 	- [device] is a null pointer
-		///		- if [device] is a memory device (and thus reserves address space), adding it would
-		///		  end up shadowing another previously-added device.
+		///		- If [device] is a memory device (and thus reserves some address space), adding it
+		///		  to the address space would end up shadowing another previously-added device.
 		bool AttachDevice(Device* device);
 
 		/// Clock all clocked devices mapped onto the bus..
@@ -124,11 +123,6 @@ namespace riscv {
 	   private:
 		Bus::Device* FindDeviceForAddress(AddressT address) const;
 
-		// TODO: The CPU needs not be a separate member or be treated specially, it too can be a Bus::Device now
-		// In fact that would probably be really clean and elegant for calling Step() properly
-
-		CPU* attachedCpu {};
-
 		/// All devices attached to the bus
 		std::vector<Device*> devices;
 

native/projects/riscv/include/riscv/System.hpp

@@ -12,7 +12,9 @@ namespace riscv {
 		/// Create
 		static System* WithMemory(AddressT ramSize);
 
-		void AddDevice(Bus::MmioDevice* device);
+		~System();
+
+		void AddDeviceToBus(Bus::Device* device);
 
 		/// returns false if the cpu broke execution
 		bool Step();
@@ -29,6 +31,7 @@ namespace riscv {
 		/// How many instructions will the CPU execute each step
 		u32 ipsRate;
 
+		// Most of our basic required devices.
 		CPU* cpu;
 		Bus* bus;
 		devices::RamDevice* ram;

native/projects/riscv/src/Bus.cpp

@@ -1,13 +1,8 @@
 #include <algorithm>
 #include <riscv/Bus.hpp>
 
-#include "riscv/Types.hpp"
-
 namespace riscv {
 
-	Bus::Bus(CPU* cpu) : attachedCpu(cpu) {
-	}
-
 	Bus::~Bus() {
 		// Free all devices
 		for(auto device: devices)