From: Daniel Gutson <dgutson@codesourcery.com>
Date: Mon, 28 Dec 2009 18:27:42 +0000 (+0000)
Subject: 2009-12-28  Daniel Gutson  <dgutson@codesourcery.com>
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=99f1a7a78a814f5df32488c36be264a8e30bf3b1;p=deliverable%2Fbinutils-gdb.git

2009-12-28  Daniel Gutson  <dgutson@codesourcery.com>

        * doc/c-arm.texi: Document NEON alignment specifiers.
---

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 5301e06632..24c4198d09 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,7 @@
+2009-12-28  Daniel Gutson  <dgutson@codesourcery.com>
+
+	* doc/c-arm.texi: Document NEON alignment specifiers.
+
 2009-12-21  Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
             Richard Earnshaw  <richard.earnshaw@arm.com>
 
diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index 671ccc7105..69ed6b63a8 100644
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -339,6 +339,7 @@ features.  The default is to warn.
 * ARM-Chars::                Special Characters
 * ARM-Regs::                 Register Names
 * ARM-Relocations::	     Relocations
+* ARM-Neon-Alignment::	     NEON Alignment Specifiers
 @end menu
 
 @node ARM-Instruction-Set
@@ -406,6 +407,21 @@ Either @samp{#} or @samp{$} can be used to indicate immediate operands.
 @cindex register names, ARM
 *TODO* Explain about ARM register naming, and the predefined names.
 
+@node ARM-Neon-Alignment
+@subsection NEON Alignment Specifiers
+
+@cindex alignment for NEON instructions
+Some NEON load/store instructions allow an optional address
+alignment qualifier.
+The ARM documentation specifies that this is indicated by
+@samp{@@ @var{align}}. However GAS already interprets
+the @samp{@@} character as a "line comment" start,
+so @samp{: @var{align}} is used instead.  For example:
+
+@smallexample
+        vld1.8 @{q0@}, [r0, :128]
+@end smallexample
+
 @node ARM Floating Point
 @section Floating Point