libfixmath

<p>libfixmath is a <a href="/facts/Cross-platform_software/16zqdvNR">platform-independent</a> <a href="/facts/Fixed-point_arithmetic/pd3RU72P">fixed-point</a> math library aimed at developers wanting to perform fast non-integer math on platforms lacking a (or with a low performance) <a href="/facts/Floating_Point_Unit/XWTW2AbF">FPU</a>. It offers developers a similar interface to the standard <a href="/facts/Math.h/2L11HPLP">math.h</a> functions for use on <a href="/facts/Q_(number_format)/1gnfDcAt">Q16.16</a> <a href="/facts/Fixed-point_arithmetic/pd3RU72P">fixed-point</a> numbers. libfixmath has no external dependencies other than <a href="/facts/Stdint.h/49S2hMa1">stdint.h</a> and a compiler which supports <a href="/facts/64-bit/AgvkQHkM">64-bit</a> integer arithmetic (such as <a href="/facts/GNU_Compiler_Collection/t07jh01k">GCC</a>).
Conditional compilation options exist to remove the requirement for a <a href="/facts/64-bit/AgvkQHkM">64-bit</a> capable <a href="/facts/Compiler/WNfCDFJe">compiler</a> as many compilers for <a href="/facts/Microcontroller/MKrnAhnm">microcontrollers</a> and <a href="/facts/Digital_signal_processor/YuBXweos">DSPs</a> do not support <a href="/facts/64-bit/AgvkQHkM">64-bit</a> arithmetic.
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libfixmath open-in-new

libfixmath