/* m68k.y -- bison grammar for m68k operand parsing
- Copyright 1995, 1996, 1997, 1998, 2001 Free Software Foundation, Inc.
+ Copyright 1995, 1996, 1997, 1998, 2001, 2003, 2004, 2005
+ Free Software Foundation, Inc.
Written by Ken Raeburn and Ian Lance Taylor, Cygnus Support
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* This file holds a bison grammar to parse m68k operands. The m68k
has a complicated operand syntax, and gas supports two main
etc), as well as gratuitously global symbol names If other parser
generators (bison, byacc, etc) produce additional global names that
conflict at link time, then those parser generators need to be
- fixed instead of adding those names to this list. */
+ fixed instead of adding those names to this list. */
#define yymaxdepth m68k_maxdepth
#define yyparse m68k_parse
/* Internal functions. */
-static enum m68k_register m68k_reg_parse PARAMS ((char **));
-static int yylex PARAMS ((void));
-static void yyerror PARAMS ((const char *));
+static enum m68k_register m68k_reg_parse (char **);
+static int yylex (void);
+static void yyerror (const char *);
/* The parser sets fields pointed to by this global variable. */
static struct m68k_op *op;
{
op->trailing_ampersand = $2;
}
- | mit_operand
+ | mit_operand optional_ampersand
+ {
+ op->trailing_ampersand = $2;
+ }
;
/* A trailing ampersand(for MAC/EMAC mask addressing). */
case '-':
/* A '-' can only appear in -(ar), rn-rn, or ar@-. If it
appears anywhere else, it must be a unary minus on an
- expression. */
- if (str[1] == '\0')
+ expression, unless it it trailed by a '&'(see mac load insn). */
+ if (str[1] == '\0' || (str[1] == '&' && str[2] == '\0'))
return *str++;
s = str + 1;
if (*s == '(')