Adds documentation of GAS's .zero directive.

	PR gas/18353
	* doc/as.texinfo (Zero): Add documentation of the .zero pseudo-op.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 9ba6648bd48e3b5130ab5819fbad72f23ad3201f..062e13da77245442d3105156e15dfb127f5358c0 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2015-04-30  Nick Clifton  <nickc@redhat.com>
+
+       PR gas/18353
+       * doc/as.texinfo (Zero): Add documentation of the .zero pseudo-op.
+
 2015-04-29  Nick Clifton  <nickc@redhat.com>
 
        PR 18256

diff --git a/gas/doc/as.texinfo b/gas/doc/as.texinfo
index d09e88cbac6105984c5ccb9c3eeec00ef6ce6e11..aac488e97d80dfb1a65e6e2ff6837975b713769d 100644 (file)
--- a/gas/doc/as.texinfo
+++ b/gas/doc/as.texinfo
@@ -4380,6 +4380,9 @@ Some machine configurations provide additional directives.
 * Weak::                        @code{.weak @var{names}}
 * Weakref::                     @code{.weakref @var{alias}, @var{symbol}}
 * Word::                        @code{.word @var{expressions}}
+@ifclear no-space-dir
+* Zero::                        @code{.zero @var{size}}
+@end ifclear
 * Deprecated::                  Deprecated Directives
 @end menu
 
@@ -6995,6 +6998,18 @@ assembly language programmers.
 @end ifset
 @c end     DIFF-TBL-KLUGE
 
+@ifclear no-space-dir
+@node Zero
+@section @code{.zero @var{size}}
+
+@cindex @code{zero} directive
+@cindex filling memory with zero bytes
+This directive emits @var{size} 0-valued bytes.  @var{size} must be an absolute
+expression.  This directive is actually an alias for the @samp{.skip} directive
+so in can take an optional second argument of the value to store in the bytes
+instead of zero.  Using @samp{.zero} in this way would be confusing however.
+@end ifclear
+
 @node Deprecated
 @section Deprecated Directives