Corrected timestamp reporting by the all-RAM Z80.

Processors/AllRAMProcessor.hpp

@@ -18,7 +18,7 @@ namespace CPU {
 class AllRAMProcessor {
 	public:
 		AllRAMProcessor(size_t memory_size);
-		uint32_t get_timestamp();
+		virtual uint32_t get_timestamp();
 		void set_data_at_address(uint16_t startAddress, size_t length, const uint8_t *data);
 		void get_data_at_address(uint16_t startAddress, size_t length, uint8_t *data);
 

Processors/Z80/Z80AllRAM.cpp

@@ -94,6 +94,10 @@ class ConcreteAllRAMProcessor: public AllRAMProcessor, public Processor<Concrete
 		void set_wait_line(bool value) {
 			CPU::Z80::Processor<ConcreteAllRAMProcessor>::set_wait_line(value);
 		}
+
+		uint32_t get_timestamp() {
+			return timestamp_ >> 1;
+		}
 };
 
 }

Processors/Z80/Z80AllRAM.hpp

@@ -38,6 +38,8 @@ class AllRAMProcessor:
 		virtual void set_non_maskable_interrupt_line(bool value) = 0;
 		virtual void set_wait_line(bool value) = 0;
 
+		virtual uint32_t get_timestamp() = 0;
+
 	protected:
 		MemoryAccessDelegate *delegate_;
 		AllRAMProcessor() : ::CPU::AllRAMProcessor(65536), delegate_(nullptr) {}