Flat assembler 1.64 (FASM)

Programmer’s Manual.Introduction (Compiler overview. Assembly syntax).
This chapter contains all the most important information you need to begin using the flat assembler. If you are experienced assembly language programmer, you should read at least this chapter before using this compiler.Instruction set (The x86 architecture instructions. Control directives. Preprocessor directives. Formatter directives).
This chapter provides the detailed information about the instructions and directives supported by flat assembler. Directives for defining constants and labels were already discussed in 1.2.3, all other directives will be described later in this chapter.Windows programming (Basic headers. Extended headers).
With the Windows version of flat assembler comes the package of standard includes designed to help in writing the programs for Windows environment. The includes package contains the headers for 32–bit Windows programming in the root folder and the specialized includes in the subfolders. In
general, the Win32 headers include the required specialized files for you, though sometimes you might prefer to include some of the macroinstruction packages yourself (since few of them are not included by some or even all of the headers).