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NUTS - Numerical Tools - is a library of fixed size numbers written for the 64-bit Free Pascal compiler (version 3.0.0 or higher).

Currently the library contains only 128-bit floating-point numbers with the basic operations QAdd, QSub, QMul, QDiv, QRem, QSqrt, and QFMA.
There are no transcendental functions yet.

Does this library follow some "754" standard? Clearly, no. There are no so-called "signaling NaNs" (all NaNs are regarded as quiet NaNs).
Any other difference (except the number of implemented functions) with the "754-2008" standard would be a bug since it would not be intentional.

The current version is an alpha version. Many things can still be modified. There is no documentation yet but the code is commented and there is a Lazarus demo project: nuts.Demo.Float128s.

• NUTS was tested with x86_64 processors only.
• NUTS cannot run on big endian systems (adapting the Pascal code should not be too difficult but I have no big endian machine in order to check the code).
• Though it would not be intentional, it is possible that NUTS does not work with an other OS than Linux (I have no other OS).

Here are examples of use of the project nuts.Demo.Float128s for Lazarus.

• Strings (NUTS constants)
• ScaleB & ILogB
• Add
• Float64 (conversions)

• File demos/nuts.demos.float128s.main.pas
  • Modified the Demo340 method (QDiv).
• File units/nuts.float128s.pas
  • Fixed a very stupid bug in the QEqual() and QEqualAbs functions.
  • Minor internal improvements.

The NUTS Library is free software; you can redistribute it and/or modify it under the terms of the 3-Clause BSD License (this license has also been called the "New BSD License" or "Modified BSD License"):

Copyright (C) 2022, Marcel Martin

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

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