[57cb8e]: utils.c  Maximize  Restore  History

Download this file

38 lines (29 with data), 1.2 kB

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
/*
stm32flash - Open Source ST STM32 flash program for *nix
Copyright (C) 2010 Geoffrey McRae <geoff@spacevs.com>
This program 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 2
of the License, or (at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "utils.h"
/* detect CPU endian */
char cpu_le() {
const uint32_t cpu_le_test = 0x12345678;
return ((unsigned char*)&cpu_le_test)[0] == 0x78;
}
uint32_t be_u32(const uint32_t v) {
if (cpu_le())
return ((v & 0xFF000000) >> 24) |
((v & 0x00FF0000) >> 8) |
((v & 0x0000FF00) << 8) |
((v & 0x000000FF) << 24);
return v;
}

Get latest updates about Open Source Projects, Conferences and News.

Sign up for the SourceForge newsletter:





No, thanks