mirrors/keychron_qmk_firmware
mirrors/keychron_qmk_firmware
0
0
Fork 0
mirror of https://github.com/Keychron/qmk_firmware.git synced 2024-11-23 00:47:02 +06:00
Code Issues Packages Projects Releases Wiki Activity

Add bitpop16() in util.c.

Browse Source
This commit is contained in:
tmk 2012-11-24 16:34:59 +09:00
parent 83f0e800e5
commit 94b4fba6e6
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
common/util.c
View File

@ -30,6 +30,14 @@ uint8_t bitpop(uint8_t bits)
*/
}
uint8_t bitpop16(uint16_t bits)
{
uint8_t c;
for (c = 0; bits; c++)
bits &= bits - 1;
return c;
}
// most significant on-bit - return highest location of on-bit
uint8_t biton(uint8_t bits)
{

3
common/util.h
View File

@ -16,7 +16,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef UTIL_H
#define UTIL_H 1
#define UTIL_H
#include <stdint.h>
@ -29,6 +29,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
uint8_t bitpop(uint8_t bits);
uint8_t bitpop16(uint16_t bits);
uint8_t biton(uint8_t bits);
#endif