Free Pascal
Programmers' manual

Michaël Van Canneyt

September 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
  • Signalling changed registers
  • Register Conventions
• Linking issues
  • Using external functions or procedures
  • Using external variables
  • Linking to an object file
  • Linking to a library
  • Making libraries
  • Using smart linking
• Objects
  • Constructor and Destructor calls
  • Memory storage of objects
  • The Virtual Method Table
• Generated code
  • Units
  • Programs
• Intel 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
  • The heap
  • using DOS memory under the Go32 extender
• Optimizations
  • Non processor specific
  • Optimization switches
  • Tips to get faster code
  • Floating point
• Anatomy of a unit file
  • Basics
  • reading ppufiles
  • The Header
  • The sections
  • Creating ppufiles
• Compiler and RTL source tree structure
  • The compiler source tree
• Compiler limits
• About this document ...