Installation Guide for MS-DOS

To use the GEN parser generator for MS-DOS you need a PC with:

• a 80386, 80486 or Pentium processor
• at least 2 MB of memory, but 4 MB or more is preferable

Furthermore, a 80387 coprocessor is required. However, a 80387 emulator is provided for in this distribution in case you don't have one.

The package gen15dos.zip contains the following files:

\gen\INSTALL	Installation notes
\gen\COPYRIGHT	Copyright notices
\gen\bin\gen.exe	The GEN compiler-driver for AGFL
\gen\bin\agfl.exe	The actual AGFL compiler
\gen\bin\merge.exe	Part of the LEXGEN lexicon system
\gen\bin\lexicon.exe	Part of the LEXGEN lexicon system
\gen\bin\set-agfl.bat	Sets environment variables used by gen.exe
\gen\bin\gencomp.bat	Creates executable from a grammar
\gen\lib\librts.a	Library needed by generated parsers
\gen\lib\librtslo.a	Library needed by generated parsers
\gen\doc\gen15.ps	This manual in PostScript format

Furthermore, the following files are included:

\gen\bin\gcc.exe	the GCC compiler driver
\gen\bin\as.exe	the GCC assembler
\gen\bin\ld.exe	the GCC loader
\gen\bin\go32.exe	the GCC 32 bit MS-DOS extender
\gen\bin\coff2exe.exe	makes executables for MS-DOS
\gen\bin\emu387	the GCC 80387 emulator
\gen\lib\crt0.o	GCC runtime support for the generated parsers
\gen\lib\libc.a	GCC library
\gen\lib\libgcc.a	GCC library

These files are part of the DJGPP GCC package, copyright D.J. Delorie. You may remove these files if you have GCC installed on your system. You can obtain DJGPP at

http://www.delorie.com/djgpp/getting.html