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/* Lattice Mico32 opcode support. -*- C -*-
Copyright 2008 Free Software Foundation, Inc.
Contributed by Jon Beniston <jon@beniston.com>
This file is part of the GNU Binutils.
This program 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 3 of the License, 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.
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., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* -- opc.h */
/* Allows reason codes to be output when assembler errors occur. */
#define CGEN_VERBOSE_ASSEMBLER_ERRORS
#define CGEN_DIS_HASH_SIZE 64
#define CGEN_DIS_HASH(buf,value) ((value >> 26) & 0x3f)
/* -- asm.c */
/* Handle signed/unsigned literal. */
static const char *
parse_imm (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
const char *errmsg;
signed long value;
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
if (errmsg == NULL)
{
unsigned long x = value & 0xFFFF0000;
if (x != 0 && x != 0xFFFF0000)
errmsg = _("immediate value out of range");
else
*valuep = (value & 0xFFFF);
}
return errmsg;
}
/* Handle hi() */
static const char *
parse_hi16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
if (strncasecmp (*strp, "hi(", 3) == 0)
{
enum cgen_parse_operand_result result_type;
bfd_vma value;
const char *errmsg;
*strp += 3;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
&result_type, &value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value = (value >> 16) & 0xffff;
*valuep = value;
return errmsg;
}
return parse_imm (cd, strp, opindex, valuep);
}
/* Handle lo() */
static const char *
parse_lo16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
if (strncasecmp (*strp, "lo(", 3) == 0)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
*strp += 3;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
&result_type, &value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
*valuep = value;
return errmsg;
}
return parse_imm (cd, strp, opindex, valuep);
}
/* Handle gp() */
static const char *
parse_gp16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep)
{
if (strncasecmp (*strp, "gp(", 3) == 0)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
*strp += 3;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_GPREL16,
& result_type, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
*valuep = value;
return errmsg;
}
return _("expecting gp relative address: gp(symbol)");
}
/* Handle got() */
static const char *
parse_got16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep)
{
if (strncasecmp (*strp, "got(", 4) == 0)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
*strp += 4;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_16_GOT,
& result_type, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
*valuep = value;
return errmsg;
}
return _("expecting got relative address: got(symbol)");
}
/* Handle gotoffhi16() */
static const char *
parse_gotoff_hi16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep)
{
if (strncasecmp (*strp, "gotoffhi16(", 11) == 0)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
*strp += 11;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_GOTOFF_HI16,
& result_type, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
*valuep = value;
return errmsg;
}
return _("expecting got relative address: gotoffhi16(symbol)");
}
/* Handle gotofflo16() */
static const char *
parse_gotoff_lo16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep)
{
if (strncasecmp (*strp, "gotofflo16(", 11) == 0)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
*strp += 11;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LM32_GOTOFF_LO16,
&result_type, &value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
*valuep = value;
return errmsg;
}
return _("expecting got relative address: gotofflo16(symbol)");
}
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