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diff src/os/unix/ngx_atomic.h @ 100:d6800bbe720e NGINX_0_2_4

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nginx 0.2.4 *) Feature: the ngx_http_ssi_module supports "$var=text", "$var!=text", "$var=/text/", and "$var!=/text/" expressions in the "if" command. *) Bugfix: in proxying location without trailing slash; bug appeared in 0.1.44. *) Bugfix: the segmentation fault may occurred if the "rtsig" method was used; bug appeared in 0.2.0.
author Igor Sysoev <http://sysoev.ru>
date Mon, 03 Oct 2005 00:00:00 +0400
parents ca4f70b3ccc6
children dad2fe8ecf08
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line diff
--- a/src/os/unix/ngx_atomic.h
+++ b/src/os/unix/ngx_atomic.h
@@ -308,8 +308,9 @@ typedef volatile ngx_atomic_uint_t  ngx_
  * this branch is unlikely to be taken.
  *
  * the "=&r" means that no input registers can be used.
- * the "=&b" means that the base registers can be used only, i.e. any register
- * except r0.  the r0 register can not be used in "addi  r0, r0, 1".
+ * the "=&b" means that the base registers can be used only, i.e.
+ * any register except r0.  the r0 register always has a zero value and
+ * could not be used in "addi  r0, r0, 1".
  * the "1b" means the nearest backward label "1" and the "1f" means
  * the nearest forward label "1".
  */