GY-63_MS5611/libraries/IEEE754tools/readme.md
2023-11-06 15:19:19 +01:00

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License: MIT GitHub release PlatformIO Registry

IEEE754tools

Arduino library to manipulate IEEE754 float numbers fast.

Description

IEEE754tools.h contains a collection of experimental bit-hacks to speed up a number of operations on floating point numbers on the Arduino UNO. These bit-hacks started in 2010 (oldest code found), maybe even earlier.

WARNING

  • do not use this lib for production code unless you verified the correctness. Code is experimental, so use with care at your own risk.
  • If you don't need micro-second speed ups do not use these code snippets.
  • do not use for ESP32 ESP32 does things differently ==> not all code works.

Test results examples

updated for 0.2.2

example UNO ESP32
fastNegate Y Y
float2Double Y N
IEEE754_equal Y N

ESP32 - needs investigation as UNO verified code fails. (something for a long winter)

Interface

#include "IEEE754tools.h"

Operations

See examples

Future

Must

  • improve documentation
  • test with double
  • test on ESP23

Should

  • investigate other speed ups
  • bring more structure in this library

Could

  • write more examples
    • example binary transfer over Serial
    • example binary transfer over Ethernet

Wont

Support

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Thank you,