gistfile1.cs

EmitHelper emit = new AssemblyBuilderHelper("HelloWorld.dll")
	.DefineType  ("Hello", typeof(object), typeof(IHello))
	.DefineMethod(typeof(IHello).GetMethod("SayHello"))
	.Emitter;

emit
	// string.Format("Hello, {0}!", toWhom)
	//
	.ldstr   ("Hello, {0}!")
	.ldarg_1
	.call    (typeof(string), "Format", typeof(string), typeof(object))

	// Console.WriteLine("Hello, World!");
	//
	.call    (typeof(Console), "WriteLine", typeof(string))
	.ret()
	;