Factored out the stuff that both all-RAM processors would share, rather than duplicating it.

Processors/AllRAMProcessor.cpp

@@ -0,0 +1,24 @@
+//
+//  AllRAMProcessor.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 16/05/2017.
+//  Copyright © 2017 Thomas Harte. All rights reserved.
+//
+
+#include "AllRAMProcessor.hpp"
+
+using namespace CPU;
+
+AllRAMProcessor::AllRAMProcessor(size_t memory_size) :
+	memory_(memory_size),
+	timestamp_(0) {}
+
+void AllRAMProcessor::set_data_at_address(uint16_t startAddress, size_t length, const uint8_t *data) {
+	size_t endAddress = std::min(startAddress + length, (size_t)65536);
+	memcpy(&memory_[startAddress], data, endAddress - startAddress);
+}
+
+uint32_t AllRAMProcessor::get_timestamp() {
+	return timestamp_;
+}