gwj / at91sam9263 · Commits

Commit 8d371d4bceb308c29a5db4c21c984e06c9d56371

Authored by aliguori
1 parent f46f15bc

Define fls() in terms of clz32(). 

As suggested by Laurent Desnogues.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5872 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 2 additions and 7 deletions
cutils.c
  View file @8d371d4
@@ -22,6 +22,7 @@ @@ -22,6 +22,7 @@
22 * THE SOFTWARE. 22 * THE SOFTWARE.
23 */ 23 */
24 #include "qemu-common.h" 24 #include "qemu-common.h"
  25 +#include "host-utils.h"
25 26
26 void pstrcpy(char *buf, int buf_size, const char *str) 27 void pstrcpy(char *buf, int buf_size, const char *str)
27 { 28 {
@@ -98,11 +99,5 @@ time_t mktimegm(struct tm *tm) @@ -98,11 +99,5 @@ time_t mktimegm(struct tm *tm)
98 99
99 int fls(int i) 100 int fls(int i)
100 { 101 {
101 - int bit;  
102 -  
103 - for (bit=31; bit >= 0; bit--)  
104 - if (i & (1 << bit))  
105 - return bit+1;  
106 -  
107 - return 0; 102 + return 32 - clz32(i);
108 } 103 }