/* CGEN generic assembler support code.
+ Copyright (C) 1996-2017 Free Software Foundation, Inc.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+ This file is part of libopcodes.
- This file is part of the GNU Binutils and GDB, the GNU debugger.
-
- This program is free software; you can redistribute it and/or modify
+ This library is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ It is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
+
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
character of the suffix ('.') is special. */
if (*p)
++p;
-
+
/* Allow letters, digits, and any special characters. */
while (((p - start) < (int) sizeof (buf))
&& *p
&result, &value);
/* FIXME: Examine `result'. */
if (!errmsg)
- *valuep = value;
+ {
+ /* Handle the case where a hex value is parsed on a 64-bit host.
+ A value like 0xffffe000 is clearly intended to be a negative
+ 16-bit value, but on a 64-bit host it will be parsed by gas
+ as 0x00000000ffffe000.
+
+ The shifts below are designed not to produce compile time
+ warnings on a 32-bit host. */
+ if (sizeof (value) > 4
+ && result == CGEN_PARSE_OPERAND_RESULT_NUMBER
+ && value > 0
+ && (value & 0x80000000)
+ && ((value >> 31) == 1))
+ value |= ((bfd_vma) -1) << 31;
+
+ *valuep = value;
+ }
return errmsg;
}