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HP-42S Simulator: advanced scientific programmable RPN calculator.
Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.
Free42 is an Open Source project. The executables and source code are released under the terms of the GNU General Public License, version 2.
All third-party code used in Free42 is either in the public domain, or licensed under terms compatible with GPLv2, or used with the authors' permission.
What's New in the Latest Version 3.1.9
Last updated on Oct 28, 2024
Implemented GETKEYA. This works like GETKEY, except that it will not wait for a keystroke if no keystrokes are in the keyboard queue, returning 0 instead in that case.
Fixed crash with relative file imports.
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Free42
3.1.9 by Thomas Okken
Oct 28, 2024