S12Z: GAS: New option --mdollar-hex.

This option (also implied by --traditional) causes '$' to introduce
literal hexadecimal constants, rather than the modern convention '0x'.

gas/
	* config/tc-s12z.c (s12z_strtol): New function. (md_show_usage): Update.
	(md_parse_option): new case OPTION_DOLLAR_HEX. (s12z_init_after_args):
	(<global>): Use s12z_strtol instead of strtol.
	* doc/c-s12z.texi (S12Z Options): Document new option -mdollar-hex.
	* testsuite/gas/s12z/dollar-hex.d: New file.
	* testsuite/gas/s12z/dollar-hex.s: New file.
	* testsuite/gas/s12z/s12z.exp: Add them.

1 files changed, 13 insertions, 0 deletions

diff --git a/gas/doc/c-s12z.texi b/gas/doc/c-s12z.texi
index b90874754c9..6cf6f25e7c4 100644
--- a/gas/doc/c-s12z.texi
+++ b/gas/doc/c-s12z.texi
@@ -38,6 +38,19 @@ string @var{pfx}.
 
 For an explanation of what this means and why it might be needed,
 see @ref{S12Z Register Notation}.
+
+
+@item -mdollar-hex
+@cindex @samp{-mdollar-hex} option, dollar-hex
+@cindex hexadecimal prefix, S12Z
+The @samp{-mdollar-hex} option affects the way that literal hexadecimal constants
+are represented.  When this option is specified, the assembler will consider
+the @samp{$} character as the start of a hexadecimal integer constant.  Without
+this option, the standard value of @samp{0x} is expected.
+
+If you use this option, then you cannot have symbol names starting with @samp{$}.
+@samp{-mdollar-hex} is implied if the @samp{--traditional-format}
+(@pxref{traditional-format}) is used.
 @end table
 
 @node S12Z Syntax