Free pascal homepage
Free Pascal is a 32 bit pascal compiler. It's available for
different processors (i386+ and 68k) and operating systems
(Linux, DOS, Win32, OS/2, Atari).
GDSoft Home Page
Is home to the SourceWare Archival Group (SWAG). Here you'll
find tons of programming snipets covering every aspect of the
PASCAL programming language including Turbo Pascal and Delphi.
The entire SWAG project is downloadable here and it completely
FREE.
Pascal Implementation: A Book and Sources
Included here is the Pascal source of a public-domain Pascal
compiler and interpreter, the P4 compiler and interpreter. It
is coded entirely in Pascal, and produces a high-level
so-called intermediate code as output. The program 'pint' is an
assembler and interpreter for this language.
Pascal Pro compiler.
Is 32-bit free compiler. It produce 32-bit code for DOS
flat-memory model. It also has some extensions for more
effective programming. For example PPro supports function,
procedure and operators overloading.
Turbo51
Turbo51 is a free Pascal compiler for the 8051 family of
microcontrollers. It features a fast single pass optimizing
compiler, Borland Turbo Pascal 7 syntax, full floating point
support, mixed Pascal and assembler programming, full use of
register banks, advanced multi-pass optimizer, smart linker,
generates compact high quality code, output formats include
binary, Intel HEX and assembler source.