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GNU Pascal is the free 32/64-bit Pascal compiler of the GNU Compiler
Collection (GNU CC or GCC). It combines a Pascal front-end with the
proven GCC back-end for code generation and optimization.  Unlike
utilities such as p2c, this is a true compiler, not just a converter.

The purpose of the GNU Pascal project is to produce a Pascal compiler
(called GNU Pascal or GPC) which

   * combines the clarity of Pascal with powerful tools suitable for
     real-life programming,
   * supports both the Pascal standard and the Extended Pascal standard
     as defined by ISO, ANSI and IEEE (ISO 7185:1990, ISO/IEC
     10206:1991, ANSI/IEEE 770X3.160-1989),
   * supports other Pascal standards (UCSD Pascal, Borland Pascal,
     parts of Borland Delphi and Pascal-SC) in so far as this serves the
     goal of clarity and usability,
   * may be distributed under GNU license conditions, and
   * can generate code for and run on any computer for which the GNU C
     compiler can generate code and run on.

The current release implements Standard Pascal (ISO 7185, levels 0 and
1), a large subset of Extended Pascal (ISO 10206, aiming for full
compliance), is highly compatible to Borland Pascal (version 7.0) with
some Delphi extensions, and provides a lot of useful GNU extensions.