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authorWolfgang Denk <wd@denx.de>2009-04-05 00:27:57 +0200
committerWolfgang Denk <wd@denx.de>2009-04-05 00:27:57 +0200
commitc0a14aedc3440d6591b8c86d45861a0a8b46e11d (patch)
treef451e0641b2c9558ee2dbe0087ea340676f1ea2f /lib_generic
parentf63728c804ab7413a67d70f6774cd30c3f7b40fb (diff)
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Update CHANGELOG, coding style cleanup.
Diffstat (limited to 'lib_generic')
-rw-r--r--lib_generic/vsprintf.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/lib_generic/vsprintf.c b/lib_generic/vsprintf.c
index 3ab1f5c..7f534c7 100644
--- a/lib_generic/vsprintf.c
+++ b/lib_generic/vsprintf.c
@@ -200,13 +200,15 @@ static char* put_dec_full(char *buf, unsigned q)
d2 = (q>>8) & 0xf;
d3 = (q>>12);
- /* Possible ways to approx. divide by 10 */
- /* gcc -O2 replaces multiply with shifts and adds */
- // (x * 0xcd) >> 11: 11001101 - shorter code than * 0x67 (on i386)
- // (x * 0x67) >> 10: 1100111
- // (x * 0x34) >> 9: 110100 - same
- // (x * 0x1a) >> 8: 11010 - same
- // (x * 0x0d) >> 7: 1101 - same, shortest code (on i386)
+ /*
+ * Possible ways to approx. divide by 10
+ * gcc -O2 replaces multiply with shifts and adds
+ * (x * 0xcd) >> 11: 11001101 - shorter code than * 0x67 (on i386)
+ * (x * 0x67) >> 10: 1100111
+ * (x * 0x34) >> 9: 110100 - same
+ * (x * 0x1a) >> 8: 11010 - same
+ * (x * 0x0d) >> 7: 1101 - same, shortest code (on i386)
+ */
d0 = 6*(d3 + d2 + d1) + (q & 0xf);
q = (d0 * 0xcd) >> 11;