Jonne Valola / PokittoLib Featured

PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)

Dependents:   YATTT sd_map_test cPong SnowDemo ... more

PokittoLib

Library for programming Pokitto hardware

How to Use

  1. Import this library to online compiler (see button "import" on the right hand side
  2. DO NOT import mbed-src anymore, a better version is now included inside PokittoLib
  3. Change My_settings.h according to your project
  4. Start coding!

POKITTO_CORE/PokittoItoa.cpp@28:958b71c4b92a, 2018-01-05 (annotated)

Committer:
Pokitto
Date:
Fri Jan 05 02:19:51 2018 +0000
Revision:
28:958b71c4b92a
Parent:
0:e8b8f36b4505 
Sound level stored in EEPROM, sound output improved

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 0:e8b8f36b4505 1 /**************************************************************************/
Pokitto 0:e8b8f36b4505 2 /*!
Pokitto 0:e8b8f36b4505 3 @file PokittoItoa.cpp
Pokitto 0:e8b8f36b4505 4 @author Jonne Valola
Pokitto 0:e8b8f36b4505 5
Pokitto 0:e8b8f36b4505 6 @section LICENSE
Pokitto 0:e8b8f36b4505 7
Pokitto 0:e8b8f36b4505 8 Software License Agreement (BSD License)
Pokitto 0:e8b8f36b4505 9
Pokitto 0:e8b8f36b4505 10 Copyright (c) 2016, Jonne Valola
Pokitto 0:e8b8f36b4505 11 All rights reserved.
Pokitto 0:e8b8f36b4505 12
Pokitto 0:e8b8f36b4505 13 Redistribution and use in source and binary forms, with or without
Pokitto 0:e8b8f36b4505 14 modification, are permitted provided that the following conditions are met:
Pokitto 0:e8b8f36b4505 15 1. Redistributions of source code must retain the above copyright
Pokitto 0:e8b8f36b4505 16 notice, this list of conditions and the following disclaimer.
Pokitto 0:e8b8f36b4505 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 0:e8b8f36b4505 18 notice, this list of conditions and the following disclaimer in the
Pokitto 0:e8b8f36b4505 19 documentation and/or other materials provided with the distribution.
Pokitto 0:e8b8f36b4505 20 3. Neither the name of the copyright holders nor the
Pokitto 0:e8b8f36b4505 21 names of its contributors may be used to endorse or promote products
Pokitto 0:e8b8f36b4505 22 derived from this software without specific prior written permission.
Pokitto 0:e8b8f36b4505 23
Pokitto 0:e8b8f36b4505 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 0:e8b8f36b4505 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 0:e8b8f36b4505 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 0:e8b8f36b4505 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 0:e8b8f36b4505 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 0:e8b8f36b4505 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 0:e8b8f36b4505 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 0:e8b8f36b4505 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 0:e8b8f36b4505 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 0:e8b8f36b4505 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 0:e8b8f36b4505 34 */
Pokitto 0:e8b8f36b4505 35 /**************************************************************************/
Pokitto 0:e8b8f36b4505 36
Pokitto 0:e8b8f36b4505 37 #include "PokittoItoa.h"
Pokitto 0:e8b8f36b4505 38 #include <string.h>
Pokitto 0:e8b8f36b4505 39 #include <stdint.h>
Pokitto 0:e8b8f36b4505 40
Pokitto 0:e8b8f36b4505 41
Pokitto 0:e8b8f36b4505 42 void pokItoa(uint16_t value, char *str, int base)
Pokitto 0:e8b8f36b4505 43 {
Pokitto 0:e8b8f36b4505 44 /** pokItoa: convert value n to characters
Pokitto 0:e8b8f36b4505 45 * Needed to emulate AVR LibC non-standard functions, this is a very fast version of itoa
Pokitto 0:e8b8f36b4505 46 *
Pokitto 0:e8b8f36b4505 47 * @param value unsigned integer to be converted
Pokitto 0:e8b8f36b4505 48 * @param *str pointer to string where function stores the result as characters
Pokitto 0:e8b8f36b4505 49 * @param base (not implemented in this function, base is always 10)
Pokitto 0:e8b8f36b4505 50 */
Pokitto 0:e8b8f36b4505 51
Pokitto 0:e8b8f36b4505 52 char *p = str;
Pokitto 0:e8b8f36b4505 53 uint8_t v;
Pokitto 0:e8b8f36b4505 54 if (value > 499)
Pokitto 0:e8b8f36b4505 55 {
Pokitto 0:e8b8f36b4505 56 if (value > 799)
Pokitto 0:e8b8f36b4505 57 {
Pokitto 0:e8b8f36b4505 58 if (value > 999)
Pokitto 0:e8b8f36b4505 59 {
Pokitto 0:e8b8f36b4505 60 // Treated as a special case as there
Pokitto 0:e8b8f36b4505 61 // are only 24 values above 999
Pokitto 0:e8b8f36b4505 62 *p++ = '1';
Pokitto 0:e8b8f36b4505 63 *p++ = '0';
Pokitto 0:e8b8f36b4505 64 uint8_t v = value - 1000;
Pokitto 0:e8b8f36b4505 65
Pokitto 0:e8b8f36b4505 66 if (v > 19) { *p++ = '2'; v -= 20; }
Pokitto 0:e8b8f36b4505 67 else if (v > 9) { *p++ = '1'; v -= 10; }
Pokitto 0:e8b8f36b4505 68 else { *p++ = '0'; }
Pokitto 0:e8b8f36b4505 69
Pokitto 0:e8b8f36b4505 70 *p++ = v + '0';
Pokitto 0:e8b8f36b4505 71 *p = 0;
Pokitto 0:e8b8f36b4505 72 return;
Pokitto 0:e8b8f36b4505 73 }
Pokitto 0:e8b8f36b4505 74
Pokitto 0:e8b8f36b4505 75 if (value > 899) { *p++ = '9'; v = value - 900; }
Pokitto 0:e8b8f36b4505 76 else { *p++ = '8'; v = value - 800; }
Pokitto 0:e8b8f36b4505 77 }
Pokitto 0:e8b8f36b4505 78 else
Pokitto 0:e8b8f36b4505 79 {
Pokitto 0:e8b8f36b4505 80 if (value > 699) { *p++ = '7'; v = value - 700; }
Pokitto 0:e8b8f36b4505 81 else if (value > 599) { *p++ = '6'; v = value - 600; }
Pokitto 0:e8b8f36b4505 82 else { *p++ = '5'; v = value - 500; }
Pokitto 0:e8b8f36b4505 83 }
Pokitto 0:e8b8f36b4505 84 }
Pokitto 0:e8b8f36b4505 85 else
Pokitto 0:e8b8f36b4505 86 {
Pokitto 0:e8b8f36b4505 87 if (value > 299)
Pokitto 0:e8b8f36b4505 88 {
Pokitto 0:e8b8f36b4505 89 if (value > 399) { *p++ = '4'; v = value - 400; }
Pokitto 0:e8b8f36b4505 90 else { *p++ = '3'; v = value - 300; }
Pokitto 0:e8b8f36b4505 91 }
Pokitto 0:e8b8f36b4505 92 else
Pokitto 0:e8b8f36b4505 93 {
Pokitto 0:e8b8f36b4505 94 if (value > 199) { *p++ = '2'; v = value - 200; }
Pokitto 0:e8b8f36b4505 95 else if (value > 99) { *p++ = '1'; v = value - 100; }
Pokitto 0:e8b8f36b4505 96 else { v = value; }
Pokitto 0:e8b8f36b4505 97 }
Pokitto 0:e8b8f36b4505 98 }
Pokitto 0:e8b8f36b4505 99
Pokitto 0:e8b8f36b4505 100 if (v > 49)
Pokitto 0:e8b8f36b4505 101 {
Pokitto 0:e8b8f36b4505 102 if (v > 69)
Pokitto 0:e8b8f36b4505 103 {
Pokitto 0:e8b8f36b4505 104 if (v > 89) { *p++ = '9'; v -= 90; }
Pokitto 0:e8b8f36b4505 105 else if (v > 79) { *p++ = '8'; v -= 80; }
Pokitto 0:e8b8f36b4505 106 else { *p++ = '7'; v -= 70; }
Pokitto 0:e8b8f36b4505 107 }
Pokitto 0:e8b8f36b4505 108 else
Pokitto 0:e8b8f36b4505 109 {
Pokitto 0:e8b8f36b4505 110 if (v > 59) { *p++ = '6'; v -= 60; }
Pokitto 0:e8b8f36b4505 111 else { *p++ = '5'; v -= 50; }
Pokitto 0:e8b8f36b4505 112 }
Pokitto 0:e8b8f36b4505 113 }
Pokitto 0:e8b8f36b4505 114 else
Pokitto 0:e8b8f36b4505 115 {
Pokitto 0:e8b8f36b4505 116 if (v > 19)
Pokitto 0:e8b8f36b4505 117 {
Pokitto 0:e8b8f36b4505 118 if (v > 39) { *p++ = '4'; v -= 40; }
Pokitto 0:e8b8f36b4505 119 else if (v > 29) { *p++ = '3'; v -= 30; }
Pokitto 0:e8b8f36b4505 120 else { *p++ = '2'; v -= 20; }
Pokitto 0:e8b8f36b4505 121 }
Pokitto 0:e8b8f36b4505 122 else
Pokitto 0:e8b8f36b4505 123 {
Pokitto 0:e8b8f36b4505 124 if (v > 9) { *p++ = '1'; v -= 10; }
Pokitto 0:e8b8f36b4505 125 else if (p != str) { *p++ = '0'; }
Pokitto 0:e8b8f36b4505 126 }
Pokitto 0:e8b8f36b4505 127 }
Pokitto 0:e8b8f36b4505 128
Pokitto 0:e8b8f36b4505 129 *p++ = v + '0';
Pokitto 0:e8b8f36b4505 130 *p = 0;
Pokitto 0:e8b8f36b4505 131 }
Pokitto 0:e8b8f36b4505 132
Pokitto 0:e8b8f36b4505 133 void pokUtoa(uint16_t value, char *str, int base) {
Pokitto 0:e8b8f36b4505 134 pokItoa(value,str,base);
Pokitto 0:e8b8f36b4505 135 }
Pokitto 0:e8b8f36b4505 136
Pokitto 0:e8b8f36b4505 137 void pokLtoa(long value, char *str, int base) {
Pokitto 0:e8b8f36b4505 138 pokItoa(value,str,base);
Pokitto 0:e8b8f36b4505 139 }
Pokitto 0:e8b8f36b4505 140