commit ChangeLog for previous commit

[deliverable/binutils-gdb.git] / gas / doc / c-rx.texi

diff --git a/gas/doc/c-rx.texi b/gas/doc/c-rx.texi
index d6390c8bd15c2bb38d764668ac5f504828e0242e..5645d30471fe9e6a6c8f33e64def2ebe898ded0e 100644 (file)
--- a/gas/doc/c-rx.texi
+++ b/gas/doc/c-rx.texi
@@ -1,5 +1,4 @@
-@c Copyright 2008, 2009, 2011
-@c Free Software Foundation, Inc.
+@c Copyright (C) 2008-2016 Free Software Foundation, Inc.
 @c This is part of the GAS manual.
 @c For copying conditions, see the file as.texinfo.
 @ifset GENERIC
@@ -106,6 +105,29 @@ by the assembled code.  With this version of the ABI function
 arguments that are passed on the stack are aligned to their natural
 alignments.  This option is the default.
 
+@cindex @samp{-mcpu=}
+@item -mcpu=@var{name}
+This option tells the assembler the target CPU type.  Currently the
+@code{rx100}, @code{rx200}, @code{rx600}, @code{rx610} and @code{rxv2}
+are recognised as valid cpu names.  Attempting to assemble an instruction
+not supported by the indicated cpu type will result in an error message
+being generated.
+
+@cindex @samp{-mno-allow-string-insns}
+@item -mno-allow-string-insns
+This option tells the assembler to mark the object file that it is
+building as one that does not use the string instructions
+@code{SMOVF}, @code{SCMPU}, @code{SMOVB}, @code{SMOVU}, @code{SUNTIL}
+@code{SWHILE} or the @code{RMPA} instruction.  In addition the mark
+tells the linker to complain if an attempt is made to link the binary
+with another one that does use any of these instructions.
+
+Note - the inverse of this option, @code{-mallow-string-insns}, is
+not needed.  The assembler automatically detects the use of the
+the instructions in the source code and labels the resulting
+object file appropriately.  If no string instructions are detected
+then the object file is labelled as being one that can be linked with
+either string-using or string-banned object files.
 @end table
 
 @node RX-Modifiers