* config/tc-a29k.c (md_operand): Handle $float, $double, and

$extend.  Based on code from Eric Freudenthal
	<freudenthal@nyu.edu>.
	* config/tc-a29k.h (LEX_DOLLAR): Define.
	* read.c (LEX_DOLLAR): Define if not defined.
	(lex_type): Use LEX_DOLLAR.
This commit is contained in:
Ian Lance Taylor 1995-11-09 01:01:44 +00:00
parent 3b168da479
commit 6a649eda40
3 changed files with 82 additions and 0 deletions

View file

@ -1,3 +1,12 @@
Wed Nov 8 19:59:36 1995 Ian Lance Taylor <ian@cygnus.com>
* config/tc-a29k.c (md_operand): Handle $float, $double, and
$extend. Based on code from Eric Freudenthal
<freudenthal@nyu.edu>.
* config/tc-a29k.h (LEX_DOLLAR): Define.
* read.c (LEX_DOLLAR): Define if not defined.
(lex_type): Use LEX_DOLLAR.
Wed Nov 8 16:38:14 1995 Eric Freudenthal <freudenthal@nyu.edu>
* configure.in (a29k-nyu-sym1): New target, just like other a29k

View file

@ -1148,6 +1148,77 @@ md_operand (expressionP)
else
expressionP->X_op = O_constant;
}
else if (input_line_pointer[0] == '$')
{
char *s;
char type;
int fieldnum, fieldlimit;
LITTLENUM_TYPE floatbuf[8];
/* $float(), $doubleN(), or $extendN() convert floating values
to integers. */
s = input_line_pointer;
++s;
fieldnum = 0;
if (strncmp (s, "double", sizeof "double" - 1) == 0)
{
s += sizeof "double" - 1;
type = 'd';
fieldlimit = 2;
}
else if (strncmp (s, "float", sizeof "float" - 1) == 0)
{
s += sizeof "float" - 1;
type = 'f';
fieldlimit = 1;
}
else if (strncmp (s, "extend", sizeof "extend" - 1) == 0)
{
s += sizeof "extend" - 1;
type = 'x';
fieldlimit = 4;
}
else
{
/* FIXME: We should handle a29k local labels here. */
return;
}
if (isdigit (*s))
{
fieldnum = *s - '0';
++s;
}
if (fieldnum >= fieldlimit)
return;
SKIP_WHITESPACE ();
if (*s != '(')
return;
++s;
SKIP_WHITESPACE ();
s = atof_ieee (s, type, floatbuf);
if (s == NULL)
return;
s = s;
SKIP_WHITESPACE ();
if (*s != ')')
return;
++s;
SKIP_WHITESPACE ();
input_line_pointer = s;
expressionP->X_op = O_constant;
expressionP->X_unsigned = 1;
expressionP->X_add_number = ((floatbuf[fieldnum * 2]
<< LITTLENUM_NUMBER_OF_BITS)
+ floatbuf[fieldnum * 2 + 1]);
}
}
/* Round up a section size to the appropriate boundary. */

View file

@ -21,6 +21,8 @@ the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307
#define TARGET_BYTES_BIG_ENDIAN 1
#define LEX_DOLLAR 1
#define tc_headers_hook(a) ; /* not used */
#define tc_headers_hook(a) ; /* not used */
#define tc_crawl_symbol_chain(a) ; /* not used */