This is the mail archive of the
binutils-cvs@sourceware.org
mailing list for the binutils project.
[binutils-gdb] gas: documentation for the SPARC %dN and %qN fp registers notation
- From: Jose E.Marchesi <jemarch at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 10 Dec 2015 15:51:53 -0000
- Subject: [binutils-gdb] gas: documentation for the SPARC %dN and %qN fp registers notation
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7039122d13ab62045e1cc299fe5b4994aef3ac5f
commit 7039122d13ab62045e1cc299fe5b4994aef3ac5f
Author: Jose E. Marchesi <jose.marchesi@oracle.com>
Date: Thu Dec 10 11:01:35 2015 -0500
gas: documentation for the SPARC %dN and %qN fp registers notation
gas/ChangeLog:
2015-12-10 Jose E. Marchesi <jose.marchesi@oracle.com>
* doc/c-sparc.texi (Sparc-Regs): Document the %dN and %qN notation
for floating-point registers.
Diff:
---
gas/ChangeLog | 5 +++++
gas/doc/c-sparc.texi | 8 ++++++++
2 files changed, 13 insertions(+)
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 153c693..8b95bdd 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2015-12-10 Jose E. Marchesi <jose.marchesi@oracle.com>
+
+ * doc/c-sparc.texi (Sparc-Regs): Document the %dN and %qN notation
+ for floating-point registers.
+
2015-12-10 Matthew Wahab <matthew.wahab@arm.com>
* doc/c-aarch64.texi (AArch64 Extensions): Update entry for crc.
diff --git a/gas/doc/c-sparc.texi b/gas/doc/c-sparc.texi
index f482e3a..165790c 100644
--- a/gas/doc/c-sparc.texi
+++ b/gas/doc/c-sparc.texi
@@ -253,6 +253,14 @@ can only be accessed as double or quad, and thus only even
or quad numbered accesses are allowed. For example, @samp{%f34}
is a legal floating point register, but @samp{%f35} is not.
+Floating point registers accessed as double can also be referred using
+the @samp{%d@var{n}} notation, where @var{n} is even. Similarly,
+floating point registers accessed as quad can be referred using the
+@samp{%q@var{n}} notation, where @var{n} is a multiple of 4. For
+example, @samp{%f4} can be denoted as both @samp{%d4} and @samp{%q4}.
+On the other hand, @samp{%f2} can be denoted as @samp{%d2} but not as
+@samp{%q2}.
+
Certain V9 instructions allow access to ancillary state registers.
Most simply they can be referred to as @samp{%asr@var{n}} where
@var{n} can be from 16 to 31. However, there are some aliases