Book excerpt: Languages/Assembler Macro Magic with Turbo Assembler® This book is a guide to one of the best-kept secrets of assembly language programming: the effective use of macros. This underutilized feature of assembly language will help you write tighter, clearer, and easier-to-understand code, and will save you hours of programming time. With examples written in Borland International’s Turbo Assembler, this book: Takes you easily and gradually through the rigors of macro programming, from the basics to sophisticated advanced techniques Includes a disk containing source code for all the macros developed in the book, including listings in both Turbo Assembler and Microsoft Assembler Emphasizes practical, real-world macros that you can put to work in your own programs Describes how to optimize macros for maximum efficiency and flexibility Explains how macros and subroutines can be used to take some of the drudgery out of building assembly language filter programs Presents TINY, a very small general-purpose programming language written entirely in assembly language macros, to demonstrate the power of "little languages"