This is the mail archive of the binutils@sourceware.org mailing list for the binutils project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH] [GAS] sparc: support %dN and %qN syntax for FP registers.


        
        > 2015-11-18  Jose E. Marchesi  <jose.marchesi@oracle.com>
        >
        > 	* config/tc-sparc.c (sparc_ip): Support %dN and %qN notation for
        > 	double and quad-precision floating-point registers.
        
        Approved - please apply - but ...
        
    
    Thanks.  Committed as below.

I forgot to update the manual.  Ok to commit the patch below?

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 147925e..97f1a29 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,10 @@
 2015-12-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
+	* doc/c-sparc.texi (Sparc-Regs): Document the %dN and %qN notation
+	for floating-point registers.
+
+2015-12-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
 	* config/tc-sparc.c (sparc_ip): Support %dN and %qN notation for
 	double and quad-precision floating-point registers.
 
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


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]