diff -r 5ce09de7f9b7 -r 47ee91579133 c++/rgb-assembler/commands/IncrementDecrement.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/c++/rgb-assembler/commands/IncrementDecrement.h	Sun Dec 24 00:08:55 2017 +0100
@@ -0,0 +1,35 @@
+#pragma once
+
+#include <wchar.h>
+#include <chrono>
+#include <thread>
+
+#include "../Command.h"
+#include "../memory.h"
+
+using namespace std;
+
+namespace commands {
+
+class IncrementDecrement : public Command {
+public:
+
+	IncrementDecrement(const bool increment) {
+		this->increment = increment;
+	}
+
+	void process(octet_t* memory, address_t& index) override {
+		address_t address = read<address_t>(memory, index);
+		address_t address_r = address;
+		address_t address_w = address_r;
+		octet_t value = read<octet_t>(memory, address_r);
+		value = increment ? value + 1 : value - 1;
+		write<octet_t>(memory, address_w, value);
+		wprintf(L"%sCREMENT %*d → %02X\n", (increment ? "IN" : "DE"), 5, address, value);
+	}
+private:
+	bool increment;
+
+};
+
+}