The Macro Assembler Programmer''s Guide provides the information you need to write and debug assembly-language programs with the Microsoft Macro Assembler (MASM) version 6.1. This guide enhanced features of the language and the programming environment for MASM 6.1. This Programmer''s Guide is written for experienced programmers who know assembly language and are familiar with an assembler. This guide teaches you how to write efficient code with the new and advanced features of MASM. Getting Started explains how to set up MASM 6.1. Environment and Tools introduces the integrated development environment called the Programmer''s WorkBench (PWB). It also includes a detailed reference to Microsoft tools and utilities. The Macro Assembler Reference provides a full listing of all MASM instructions directives statements and operators and it serves as a quick reference to utility commands.