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0.1.12 bitHelpers
This commit is contained in:
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3
libraries/bitHelpers/.github/FUNDING.yml
vendored
3
libraries/bitHelpers/.github/FUNDING.yml
vendored
@ -1,4 +1,5 @@
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# These are supported funding model platforms
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github: RobTillaart
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github: RobTillaart
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custom: "https://www.paypal.me/robtillaart"
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@ -1,12 +1,12 @@
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name: Arduino-lint
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on: [push, pull_request]
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jobs:
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lint:
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runs-on: ubuntu-latest
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timeout-minutes: 5
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- uses: arduino/arduino-lint-action@v1
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with:
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library-manager: update
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@ -1,4 +1,3 @@
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---
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name: Arduino CI
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on: [push, pull_request]
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@ -6,9 +5,10 @@ on: [push, pull_request]
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jobs:
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runTest:
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runs-on: ubuntu-latest
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timeout-minutes: 20
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- uses: ruby/setup-ruby@v1
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with:
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ruby-version: 2.6
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@ -9,10 +9,11 @@ on:
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jobs:
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test:
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runs-on: ubuntu-latest
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timeout-minutes: 5
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- name: json-syntax-check
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uses: limitusus/json-syntax-check@v1
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uses: limitusus/json-syntax-check@v2
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with:
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pattern: "\\.json$"
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@ -5,10 +5,16 @@ All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](http://keepachangelog.com/)
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and this project adheres to [Semantic Versioning](http://semver.org/).
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## [0.1.12] - 2024-04-09
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- update GitHub actions
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- update keywords.txt
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- minor edits
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## [0.1.11] - 2023-10-18
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- update readme.md
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## [0.1.10] - 2023-02-08
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- reorganize readme.md
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- update GitHub actions
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@ -1,6 +1,6 @@
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MIT License
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Copyright (c) 2015-2023 Rob Tillaart
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Copyright (c) 2015-2024 Rob Tillaart
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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@ -27,6 +27,11 @@ If they don't please file an issue on GitHub.
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New bit functions can be added or investigated, please file an issue on GitHub.
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#### Related
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- https://github.com/RobTillaart/BitArray
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## Interface
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```cpp
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@ -70,18 +75,18 @@ swap upper and lower half: uint8_t .. uint64_t. Is like rotate 50%
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#### BitRotate
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Rotate Left / Right: uint8_t .. uint64_t
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if pos larger than # bits original value is returned.
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if position larger than # bits original value is returned.
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- **T bitRotateLeft(T value, uint8_t pos)**
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- **T bitRotateRight(T value, uint8_t pos)**
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- **T bitRotateLeft(T value, uint8_t position)**
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- **T bitRotateRight(T value, uint8_t position)**
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#### BitFlip
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BitFlip: uint8_t .. uint64_t a.k.a toggle
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if pos larger than # bits original value is returned.
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if position larger than # bits original value is returned.
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- **T bitFlip(T value, uint8_t pos)** flips a single bit at pos
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- **T bitFlip(T value, uint8_t position)** flips a single bit at position
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#### BitRot
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@ -134,7 +139,7 @@ Also added are macro versions of these five functions.
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#### Should
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- add performance tests
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- **bitRotateLeftRight()** should it do modulo pos?
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- **bitRotateLeftRight()** should it do modulo position?
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- **bitsNeededRef()** correct for value 0?
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- **nybbleReverse()** => **nibbleReverse()**
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@ -151,7 +156,8 @@ specific position. e.g.
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- **bitSort(value)** 00101001 ==> 00000111
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or with minimal # toggles?
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- **bitReverse(uint32_t x, uint8_t n)** see below.
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- **byteReverse24(uint32_t x)** dedicated 24 bit = 3 bytes e.g RGB
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- **byteReverse24(uint32_t x)** dedicated 24 bit = 3 bytes e.g RGB ==> BGR
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- **byteRotate24(uint32_t x)** dedicated 24 bit = 3 bytes e.g RGB
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- **byteInverse(uint32_t x)** (a,b,c,d) => (255-a, 255-b, 255-c, 255-d) = rather simple ~?
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- **isBitPalindrome()** byte, word ...
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- **bitSwap(value, p, q)**
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@ -161,7 +167,6 @@ or with minimal # toggles?
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#### Wont
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## ideas
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#### BitReverse n bit number
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@ -1,7 +1,7 @@
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//
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// FILE: bitHelpers.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.11
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// VERSION: 0.1.12
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// DATE: 2015-11-07
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// PURPOSE: Arduino library with functions on bit level
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// URL: https://github.com/RobTillaart/bitHelpers
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@ -309,35 +309,35 @@ uint64_t swap(uint64_t value)
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//
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// BIT ROTATE LEFT
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//
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uint8_t bitRotateLeft(uint8_t value, uint8_t pos)
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uint8_t bitRotateLeft(uint8_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 7) return value;
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return (value << pos) | (value >> (8 - pos));
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if (position == 0) return value;
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if (position > 7) return value;
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return (value << position) | (value >> (8 - position));
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}
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uint16_t bitRotateLeft(uint16_t value, uint8_t pos)
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uint16_t bitRotateLeft(uint16_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 15) return value;
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return (value << pos) | (value >> (16 - pos));
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if (position == 0) return value;
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if (position > 15) return value;
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return (value << position) | (value >> (16 - position));
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}
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uint32_t bitRotateLeft(uint32_t value, uint8_t pos)
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uint32_t bitRotateLeft(uint32_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 31) return value;
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return (value << pos) | (value >> (32 - pos));
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if (position == 0) return value;
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if (position > 31) return value;
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return (value << position) | (value >> (32 - position));
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}
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uint64_t bitRotateLeft(uint64_t value, uint8_t pos)
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uint64_t bitRotateLeft(uint64_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 63) return value;
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return (value << pos) | (value >> (64 - pos));
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if (position == 0) return value;
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if (position > 63) return value;
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return (value << position) | (value >> (64 - position));
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}
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@ -345,35 +345,35 @@ uint64_t bitRotateLeft(uint64_t value, uint8_t pos)
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//
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// BIT ROTATE RIGHT
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//
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uint8_t bitRotateRight(uint8_t value, uint8_t pos)
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uint8_t bitRotateRight(uint8_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 7) return value;
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return (value << (8 - pos)) | (value >> pos);
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if (position == 0) return value;
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if (position > 7) return value;
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return (value << (8 - position)) | (value >> position);
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}
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uint16_t bitRotateRight(uint16_t value, uint8_t pos)
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uint16_t bitRotateRight(uint16_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 15) return value;
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return (value << (16 - pos)) | (value >> pos);
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if (position == 0) return value;
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if (position > 15) return value;
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return (value << (16 - position)) | (value >> position);
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}
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uint32_t bitRotateRight(uint32_t value, uint8_t pos)
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uint32_t bitRotateRight(uint32_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 31) return value;
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return (value << (32 - pos)) | (value >> pos);
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if (position == 0) return value;
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if (position > 31) return value;
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return (value << (32 - position)) | (value >> position);
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}
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uint64_t bitRotateRight(uint64_t value, uint8_t pos)
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uint64_t bitRotateRight(uint64_t value, uint8_t position)
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{
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if (pos == 0) return value;
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if (pos > 63) return value;
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return (value << (64 - pos)) | (value >> pos);
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if (position == 0) return value;
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if (position > 63) return value;
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return (value << (64 - position)) | (value >> position);
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}
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@ -381,31 +381,31 @@ uint64_t bitRotateRight(uint64_t value, uint8_t pos)
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//
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// BIT FLIP
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//
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uint8_t bitFlip(uint8_t value, uint8_t pos)
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uint8_t bitFlip(uint8_t value, uint8_t position)
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{
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if (pos > 7) return value;
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return value ^ (1 << pos);
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if (position > 7) return value;
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return value ^ (1 << position);
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}
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uint16_t bitFlip(uint16_t value, uint8_t pos)
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uint16_t bitFlip(uint16_t value, uint8_t position)
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{
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if (pos > 15) return value;
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return value ^ (1 << pos);
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if (position > 15) return value;
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return value ^ (1 << position);
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}
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uint32_t bitFlip(uint32_t value, uint8_t pos)
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uint32_t bitFlip(uint32_t value, uint8_t position)
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{
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if (pos > 31) return value;
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return value ^ (1UL << pos);
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if (position > 31) return value;
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return value ^ (1UL << position);
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}
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uint64_t bitFlip(uint64_t value, uint8_t pos)
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uint64_t bitFlip(uint64_t value, uint8_t position)
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{
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if (pos > 63) return value;
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return value ^ (1ULL << pos);
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if (position > 63) return value;
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return value ^ (1ULL << position);
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}
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//
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// FILE: bitHelpers.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.11
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// VERSION: 0.1.12
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// DATE: 2015-11-07
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// PURPOSE: Arduino library with functions on bit level
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// URL: https://github.com/RobTillaart/bitHelpers
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@ -11,7 +11,7 @@
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#include "Arduino.h"
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#define BITHELPER_LIB_VERSION (F("0.1.11"))
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#define BITHELPER_LIB_VERSION (F("0.1.12"))
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// used by bitRot()
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@ -110,39 +110,39 @@ uint64_t swap(uint64_t value);
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//
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// BIT ROTATE LEFT
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//
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uint8_t bitRotateLeft(uint8_t value, uint8_t pos);
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uint8_t bitRotateLeft(uint8_t value, uint8_t position);
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uint16_t bitRotateLeft(uint16_t value, uint8_t pos);
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uint16_t bitRotateLeft(uint16_t value, uint8_t position);
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uint32_t bitRotateLeft(uint32_t value, uint8_t pos);
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uint32_t bitRotateLeft(uint32_t value, uint8_t position);
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uint64_t bitRotateLeft(uint64_t value, uint8_t pos);
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uint64_t bitRotateLeft(uint64_t value, uint8_t position);
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////////////////////////////////////////////////
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//
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// BIT ROTATE RIGHT
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//
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uint8_t bitRotateRight(uint8_t value, uint8_t pos);
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uint8_t bitRotateRight(uint8_t value, uint8_t position);
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uint16_t bitRotateRight(uint16_t value, uint8_t pos);
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uint16_t bitRotateRight(uint16_t value, uint8_t position);
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uint32_t bitRotateRight(uint32_t value, uint8_t pos);
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uint32_t bitRotateRight(uint32_t value, uint8_t position);
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uint64_t bitRotateRight(uint64_t value, uint8_t pos);
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uint64_t bitRotateRight(uint64_t value, uint8_t position);
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////////////////////////////////////////////////////
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//
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// BIT FLIP
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//
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uint8_t bitFlip(uint8_t value, uint8_t pos);
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uint8_t bitFlip(uint8_t value, uint8_t position);
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uint16_t bitFlip(uint16_t value, uint8_t pos);
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uint16_t bitFlip(uint16_t value, uint8_t position);
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uint32_t bitFlip(uint32_t value, uint8_t pos);
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uint32_t bitFlip(uint32_t value, uint8_t position);
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uint64_t bitFlip(uint64_t value, uint8_t pos);
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uint64_t bitFlip(uint64_t value, uint8_t position);
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////////////////////////////////////////////////////
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// PURPOSE: performance comparison (~30% faster)
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// URL: https://github.com/RobTillaart/bitHelpers
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#include "bitHelpers.h"
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uint32_t start, stop;
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test64();
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}
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void test8()
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{
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Serial.println();
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delay(10);
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}
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void test16()
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{
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Serial.println();
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delay(10);
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}
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void test32()
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{
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Serial.println();
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@ -101,6 +105,7 @@ void test32()
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delay(10);
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}
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void test64()
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{
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Serial.println();
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@ -134,4 +139,4 @@ void loop()
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{
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}
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// -- END OF FILE --
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// -- END OF FILE --
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@ -439,5 +439,5 @@ void test_bitRot()
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}
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// -- END OF FILE --
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// -- END OF FILE --
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@ -76,5 +76,5 @@ void loop()
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}
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// -- END OF FILE --
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// -- END OF FILE --
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@ -104,4 +104,4 @@ void printHex32(uint32_t x)
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// -- END OF FILE --
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// -- END OF FILE --
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@ -5,6 +5,10 @@
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# Methods and Functions (KEYWORD2)
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bitCountReference KEYWORD2
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bitCountKR KEYWORD2
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bitCountArray KEYWORD2
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bitCountF1 KEYWORD2
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bitCountF2 KEYWORD2
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bitCount KEYWORD2
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bitReverse KEYWORD2
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@ -17,6 +21,7 @@ bitRotateLeft KEYWORD2
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bitRotateRight KEYWORD2
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bitFlip KEYWORD2
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bitRotRef KEYWORD2
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bitRot KEYWORD2
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bitSet64 KEYWORD2
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@ -15,7 +15,7 @@
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"type": "git",
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"url": "https://github.com/RobTillaart/bitHelpers.git"
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},
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"version": "0.1.11",
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"version": "0.1.12",
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"license": "MIT",
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"frameworks": "*",
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"platforms": "*",
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@ -1,5 +1,5 @@
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name=bitHelpers
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version=0.1.11
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version=0.1.12
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author=Rob Tillaart <rob.tillaart@gmail.com>
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maintainer=Rob Tillaart <rob.tillaart@gmail.com>
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sentence=Arduino library with functions on bit level
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||||
|
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