Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Tree: 35baa38812
Fetching contributors…

Cannot retrieve contributors at this time

96 lines (77 sloc) 2.122 kB
/*
print.c - Functions for formatting output strings
Part of Grbl
Copyright (c) 2009-2011 Simen Svale Skogsrud
Grbl is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Grbl is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Grbl. If not, see <http://www.gnu.org/licenses/>.
*/
/* This code was initially inspired by the wiring_serial module by David A. Mellis which
used to be a part of the Arduino project. */
#include <math.h>
#include <avr/pgmspace.h>
#include "serial.h"
#ifndef DECIMAL_PLACES
#define DECIMAL_PLACES 3
#endif
void printString(const char *s)
{
while (*s)
serial_write(*s++);
}
// Print a string stored in PGM-memory
void printPgmString(const char *s)
{
char c;
while ((c = pgm_read_byte_near(s++)))
serial_write(c);
}
void printIntegerInBase(unsigned long n, unsigned long base)
{
unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars.
unsigned long i = 0;
if (n == 0) {
serial_write('0');
return;
}
while (n > 0) {
buf[i++] = n % base;
n /= base;
}
for (; i > 0; i--)
serial_write(buf[i - 1] < 10 ?
'0' + buf[i - 1] :
'A' + buf[i - 1] - 10);
}
void printInteger(long n)
{
if (n < 0) {
serial_write('-');
n = -n;
}
printIntegerInBase(n, 10);
}
// A very simple
void printFloat(double n)
{
double integer_part, fractional_part;
uint8_t decimal_part;
fractional_part = modf(n, &integer_part);
printInteger(integer_part);
serial_write('.');
fractional_part *= 10;
int decimals = DECIMAL_PLACES;
while(decimals-- > 0) {
decimal_part = floor(fractional_part);
serial_write('0'+decimal_part);
fractional_part -= decimal_part;
fractional_part *= 10;
}
}
Jump to Line
Something went wrong with that request. Please try again.