Free Pascal
Programmers' manual

Michaël Van Canneyt

March 1998

• Contents
• Compiler directives
  • Local directives
  • Global directives
• Using conditionals, Messages and macros
  • Conditionals
  • Messages
  • Macros
• Using assembly language
  • Intel syntax
  • AT&T Syntax
  • Calling mechanism
  • Telling the compiler what registers have changed
• Linking issues
  • Declaring an external function or procedure
  • Explicitly linking an object file in your program
  • Linking your program to a library
  • Making a shared library
• Objects
  • Constructor and Destructor calls
  • Memory storage of objects
  • The Virtual Method Table
• Generated code
  • Units
  • Programs
• MMX support
  • What is it about ?
  • Saturation support
  • Restrictions of MMX support
  • Supported MMX operations
  • Optimizing MMX support
• Memory issues
  • The 32-bit model.
  • The stack
  • Accessing DOS memory under the Go32 extender
• Anatomy of a unit file
• List of compiler source files
• Compiler limits
• Optimizing techniques used in the compiler.