Some parts of Galope were possible thanks to code, documentation, ideas or inspiration from the following Forth systems, libraries and programs, listed in alphabetical order:
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4tH, by J.L. Bezemer, 1994..2016.
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CamelForth (for Z80), by Bradford J. Rodriguez, 1994..1995.
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DX-Forth (version 4.x for CP/M), by Ed, 2013..2015.
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F83 (for CP/M and DOS), by Mike Perry and Henry Laxen, 1984.
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Forth Foundation Library, by Dick van Oudheusden, <2006..2015.
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forthsnake, by Robert Pfeiffer, 2009.
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Gforth, by Anton Ertl, Bernd Paysan et al., 1995..2018.
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kForth (for Linux, v1.5.2), by Krishna Myneni, 1999..2010.
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lina (for x86 Linux), by Albert van der Horst, 2000..2004.
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Modules (for ANS Forth, v1.0.2), by Ulrich Hoffmann, 2015..2016.
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MPE Forth for TiniARM, by MicroProcessor Engineering Limited, 1996..2004.
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Solo Forth (for ZX Spectrum 128), by Marcos Cruz (programandala.net), 2015..2018.
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SwiftForth (for Windows, Linux and MacOS), by Forth Inc.
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Win32Forth (for Windows), by Andrew McKewan, Tom Zimmer, Robert Smith, Jim Schneider, Tom A. Peters et al., 1994..2010.
Specific credits and acknowledgment notes are included in the source.