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mep.opc
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mep.opc
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/* MeP opcode support. -*- C -*-
Copyright 2011 Free Software Foundation, Inc.
Contributed by Red Hat Inc;
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 */
#undef CGEN_DIS_HASH_SIZE
#define CGEN_DIS_HASH_SIZE 1
#undef CGEN_DIS_HASH
#define CGEN_DIS_HASH(buffer, insn) 0
#define CGEN_VERBOSE_ASSEMBLER_ERRORS
typedef struct
{
char * name;
int config_enum;
unsigned cpu_flag;
int big_endian;
int vliw_bits;
CGEN_ATTR_VALUE_BITSET_TYPE cop16_isa;
CGEN_ATTR_VALUE_BITSET_TYPE cop32_isa;
CGEN_ATTR_VALUE_BITSET_TYPE cop48_isa;
CGEN_ATTR_VALUE_BITSET_TYPE cop64_isa;
CGEN_ATTR_VALUE_BITSET_TYPE cop_isa;
CGEN_ATTR_VALUE_BITSET_TYPE core_isa;
unsigned int option_mask;
} mep_config_map_struct;
extern mep_config_map_struct mep_config_map[];
extern int mep_config_index;
extern void init_mep_all_core_isas_mask (void);
extern void init_mep_all_cop_isas_mask (void);
extern CGEN_ATTR_VALUE_BITSET_TYPE mep_cop_isa (void);
#define MEP_CONFIG (mep_config_map[mep_config_index].config_enum)
#define MEP_CPU (mep_config_map[mep_config_index].cpu_flag)
#define MEP_OMASK (mep_config_map[mep_config_index].option_mask)
#define MEP_VLIW (mep_config_map[mep_config_index].vliw_bits > 0)
#define MEP_VLIW32 (mep_config_map[mep_config_index].vliw_bits == 32)
#define MEP_VLIW64 (mep_config_map[mep_config_index].vliw_bits == 64)
#define MEP_COP16_ISA (mep_config_map[mep_config_index].cop16_isa)
#define MEP_COP32_ISA (mep_config_map[mep_config_index].cop32_isa)
#define MEP_COP48_ISA (mep_config_map[mep_config_index].cop48_isa)
#define MEP_COP64_ISA (mep_config_map[mep_config_index].cop64_isa)
#define MEP_COP_ISA (mep_config_map[mep_config_index].cop_isa)
#define MEP_CORE_ISA (mep_config_map[mep_config_index].core_isa)
/* begin-cop-ip-supported-defines */
#define MEP_IVC2_SUPPORTED 1
/* end-cop-ip-supported-defines */
extern int mep_insn_supported_by_isa (const CGEN_INSN *, CGEN_ATTR_VALUE_BITSET_TYPE *);
/* A mask for all ISAs executed by the core. */
#define MEP_ALL_CORE_ISAS_MASK mep_all_core_isas_mask
extern CGEN_ATTR_VALUE_BITSET_TYPE mep_all_core_isas_mask;
#define MEP_INSN_CORE_P(insn) ( \
init_mep_all_core_isas_mask (), \
mep_insn_supported_by_isa (insn, & MEP_ALL_CORE_ISAS_MASK) \
)
/* A mask for all ISAs executed by a VLIW coprocessor. */
#define MEP_ALL_COP_ISAS_MASK mep_all_cop_isas_mask
extern CGEN_ATTR_VALUE_BITSET_TYPE mep_all_cop_isas_mask;
#define MEP_INSN_COP_P(insn) ( \
init_mep_all_cop_isas_mask (), \
mep_insn_supported_by_isa (insn, & MEP_ALL_COP_ISAS_MASK) \
)
extern int mep_cgen_insn_supported (CGEN_CPU_DESC, const CGEN_INSN *);
extern int mep_cgen_insn_supported_asm (CGEN_CPU_DESC, const CGEN_INSN *);
/* -- asm.c */
#include "elf/mep.h"
#define CGEN_VALIDATE_INSN_SUPPORTED
#define mep_cgen_insn_supported mep_cgen_insn_supported_asm
const char * parse_csrn (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *);
const char * parse_tpreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *);
const char * parse_spreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *);
const char * parse_mep_align (CGEN_CPU_DESC, const char **, enum cgen_operand_type, long *);
const char * parse_mep_alignu (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *);
static const char * parse_signed16 (CGEN_CPU_DESC, const char **, int, long *);
static const char * parse_signed16_range (CGEN_CPU_DESC, const char **, int, long *) ATTRIBUTE_UNUSED;
static const char * parse_unsigned16 (CGEN_CPU_DESC, const char **, int, unsigned long *);
static const char * parse_unsigned16_range (CGEN_CPU_DESC, const char **, int, unsigned long *) ATTRIBUTE_UNUSED;
static const char * parse_lo16 (CGEN_CPU_DESC, const char **, int, long *, long);
static const char * parse_unsigned7 (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *);
static const char * parse_zero (CGEN_CPU_DESC, const char **, int, long *);
const char *
parse_csrn (CGEN_CPU_DESC cd, const char **strp,
CGEN_KEYWORD *keyword_table, long *field)
{
const char *err;
unsigned long value;
err = cgen_parse_keyword (cd, strp, keyword_table, field);
if (!err)
return NULL;
err = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, & value);
if (err)
return err;
*field = value;
return NULL;
}
/* begin-cop-ip-parse-handlers */
static const char *
parse_ivc2_cr (CGEN_CPU_DESC,
const char **,
CGEN_KEYWORD *,
long *) ATTRIBUTE_UNUSED;
static const char *
parse_ivc2_cr (CGEN_CPU_DESC cd,
const char **strp,
CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
long *field)
{
return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr_ivc2, field);
}
static const char *
parse_ivc2_ccr (CGEN_CPU_DESC,
const char **,
CGEN_KEYWORD *,
long *) ATTRIBUTE_UNUSED;
static const char *
parse_ivc2_ccr (CGEN_CPU_DESC cd,
const char **strp,
CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
long *field)
{
return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, field);
}
/* end-cop-ip-parse-handlers */
const char *
parse_tpreg (CGEN_CPU_DESC cd, const char ** strp,
CGEN_KEYWORD *keyword_table, long *field)
{
const char *err;
err = cgen_parse_keyword (cd, strp, keyword_table, field);
if (err)
return err;
if (*field != 13)
return _("Only $tp or $13 allowed for this opcode");
return NULL;
}
const char *
parse_spreg (CGEN_CPU_DESC cd, const char ** strp,
CGEN_KEYWORD *keyword_table, long *field)
{
const char *err;
err = cgen_parse_keyword (cd, strp, keyword_table, field);
if (err)
return err;
if (*field != 15)
return _("Only $sp or $15 allowed for this opcode");
return NULL;
}
const char *
parse_mep_align (CGEN_CPU_DESC cd, const char ** strp,
enum cgen_operand_type type, long *field)
{
long lsbs = 0;
const char *err;
switch (type)
{
case MEP_OPERAND_PCREL8A2:
case MEP_OPERAND_PCREL12A2:
case MEP_OPERAND_PCREL17A2:
case MEP_OPERAND_PCREL24A2:
err = cgen_parse_signed_integer (cd, strp, type, field);
break;
case MEP_OPERAND_PCABS24A2:
case MEP_OPERAND_UDISP7:
case MEP_OPERAND_UDISP7A2:
case MEP_OPERAND_UDISP7A4:
case MEP_OPERAND_UIMM7A4:
case MEP_OPERAND_ADDR24A4:
err = cgen_parse_unsigned_integer (cd, strp, type, (unsigned long *) field);
break;
default:
abort();
}
if (err)
return err;
switch (type)
{
case MEP_OPERAND_UDISP7:
lsbs = 0;
break;
case MEP_OPERAND_PCREL8A2:
case MEP_OPERAND_PCREL12A2:
case MEP_OPERAND_PCREL17A2:
case MEP_OPERAND_PCREL24A2:
case MEP_OPERAND_PCABS24A2:
case MEP_OPERAND_UDISP7A2:
lsbs = *field & 1;
break;
case MEP_OPERAND_UDISP7A4:
case MEP_OPERAND_UIMM7A4:
case MEP_OPERAND_ADDR24A4:
lsbs = *field & 3;
break;
lsbs = *field & 7;
break;
default:
/* Safe assumption? */
abort ();
}
if (lsbs)
return "Value is not aligned enough";
return NULL;
}
const char *
parse_mep_alignu (CGEN_CPU_DESC cd, const char ** strp,
enum cgen_operand_type type, unsigned long *field)
{
return parse_mep_align (cd, strp, type, (long *) field);
}
/* Handle %lo(), %tpoff(), %sdaoff(), %hi(), and other signed
constants in a signed context. */
static const char *
parse_signed16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep)
{
return parse_lo16 (cd, strp, opindex, valuep, 1);
}
static const char *
parse_lo16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep,
long signedp)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
if (strncasecmp (*strp, "%lo(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16,
& result_type, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
if (signedp)
*valuep = (long)(short) value;
else
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%hi(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S,
& result_type, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value = (value + 0x8000) >> 16;
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%uhi(", 5) == 0)
{
*strp += 5;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U,
& result_type, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value = value >> 16;
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%sdaoff(", 8) == 0)
{
*strp += 8;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL,
NULL, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%tpoff(", 7) == 0)
{
*strp += 7;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL,
NULL, & value);
if (**strp != ')')
return _("missing `)'");
++*strp;
*valuep = value;
return errmsg;
}
if (**strp == '%')
return _("invalid %function() here");
return cgen_parse_signed_integer (cd, strp, opindex, valuep);
}
static const char *
parse_unsigned16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
return parse_lo16 (cd, strp, opindex, (long *) valuep, 0);
}
static const char *
parse_signed16_range (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
signed long *valuep)
{
const char *errmsg = 0;
signed long value;
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
if (errmsg)
return errmsg;
if (value < -32768 || value > 32767)
return _("Immediate is out of range -32768 to 32767");
*valuep = value;
return 0;
}
static const char *
parse_unsigned16_range (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
const char *errmsg = 0;
unsigned long value;
errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value);
if (errmsg)
return errmsg;
if (value > 65535)
return _("Immediate is out of range 0 to 65535");
*valuep = value;
return 0;
}
/* A special case of parse_signed16 which accepts only the value zero. */
static const char *
parse_zero (CGEN_CPU_DESC cd, const char **strp, int opindex, long *valuep)
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
bfd_vma value;
/*fprintf(stderr, "dj: signed parse opindex `%s'\n", *strp);*/
/* Prevent ($ry) from being attempted as an expression on 'sw $rx,($ry)'.
It will fail and cause ry to be listed as an undefined symbol in the
listing. */
if (strncmp (*strp, "($", 2) == 0)
return "not zero"; /* any string will do -- will never be seen. */
if (strncasecmp (*strp, "%lo(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16,
&result_type, &value);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
return "not zero"; /* any string will do -- will never be seen. */
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%hi(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S,
&result_type, &value);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
return "not zero"; /* any string will do -- will never be seen. */
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%uhi(", 5) == 0)
{
*strp += 5;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U,
&result_type, &value);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
return "not zero"; /* any string will do -- will never be seen. */
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%sdaoff(", 8) == 0)
{
*strp += 8;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL,
&result_type, &value);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
return "not zero"; /* any string will do -- will never be seen. */
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%tpoff(", 7) == 0)
{
*strp += 7;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL,
&result_type, &value);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
return "not zero"; /* any string will do -- will never be seen. */
*valuep = value;
return errmsg;
}
if (**strp == '%')
return "invalid %function() here";
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_NONE,
&result_type, &value);
if (errmsg == NULL
&& (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
return "not zero"; /* any string will do -- will never be seen. */
return errmsg;
}
static const char *
parse_unsigned7 (CGEN_CPU_DESC cd, const char **strp,
enum cgen_operand_type opindex, unsigned long *valuep)
{
const char *errmsg;
bfd_vma value;
/* fprintf(stderr, "dj: unsigned7 parse `%s'\n", *strp); */
if (strncasecmp (*strp, "%tpoff(", 7) == 0)
{
int reloc;
*strp += 7;
switch (opindex)
{
case MEP_OPERAND_UDISP7:
reloc = BFD_RELOC_MEP_TPREL7;
break;
case MEP_OPERAND_UDISP7A2:
reloc = BFD_RELOC_MEP_TPREL7A2;
break;
case MEP_OPERAND_UDISP7A4:
reloc = BFD_RELOC_MEP_TPREL7A4;
break;
default:
/* Safe assumption? */
abort ();
}
errmsg = cgen_parse_address (cd, strp, opindex, reloc,
NULL, &value);
if (**strp != ')')
return "missing `)'";
++*strp;
*valuep = value;
return errmsg;
}
if (**strp == '%')
return _("invalid %function() here");
return parse_mep_alignu (cd, strp, opindex, valuep);
}
static ATTRIBUTE_UNUSED const char *
parse_cdisp10 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
long *valuep)
{
const char *errmsg = 0;
signed long value;
long have_zero = 0;
int wide = 0;
int alignment;
switch (opindex)
{
case MEP_OPERAND_CDISP10A4:
alignment = 2;
break;
case MEP_OPERAND_CDISP10A2:
alignment = 1;
break;
case MEP_OPERAND_CDISP10:
default:
alignment = 0;
break;
}
if ((MEP_CPU & EF_MEP_CPU_MASK) == EF_MEP_CPU_C5)
wide = 1;
if (strncmp (*strp, "0x0", 3) == 0
|| (**strp == '0' && *(*strp + 1) != 'x'))
have_zero = 1;
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
if (errmsg)
return errmsg;
if (wide)
{
if (value < -512 || value > 511)
return _("Immediate is out of range -512 to 511");
}
else
{
if (value < -128 || value > 127)
return _("Immediate is out of range -128 to 127");
}
if (value & ((1<<alignment)-1))
return _("Value is not aligned enough");
/* If this field may require a relocation then use larger dsp16. */
if (! have_zero && value == 0)
return (wide ? _("Immediate is out of range -512 to 511")
: _("Immediate is out of range -128 to 127"));
*valuep = value;
return 0;
}
/* BEGIN LIGHTWEIGHT MACRO PROCESSOR. */
#define MAXARGS 9
typedef struct
{
char *name;
char *expansion;
} macro;
typedef struct
{
const char *start;
int len;
} arg;
macro macros[] =
{
{ "sizeof", "(`1.end + (- `1))"},
{ "startof", "(`1 | 0)" },
{ "align4", "(`1&(~3))"},
/*{ "hi", "(((`1+0x8000)>>16) & 0xffff)" }, */
/*{ "lo", "(`1 & 0xffff)" }, */
/*{ "sdaoff", "((`1-__sdabase) & 0x7f)"}, */
/*{ "tpoff", "((`1-__tpbase) & 0x7f)"}, */
{ 0,0 }
};
static char * expand_string (const char *, int);
static const char *
mep_cgen_expand_macros_and_parse_operand
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
static char *
str_append (char *dest, const char *input, int len)
{
char *new_dest;
int oldlen;
if (len == 0)
return dest;
/* printf("str_append: <<%s>>, <<%s>>, %d\n", dest, input, len); */
oldlen = (dest ? strlen(dest) : 0);
new_dest = realloc (dest, oldlen + len + 1);
memset (new_dest + oldlen, 0, len + 1);
return strncat (new_dest, input, len);
}
static macro *
lookup_macro (const char *name)
{
macro *m;
for (m = macros; m->name; ++m)
if (strncmp (m->name, name, strlen(m->name)) == 0)
return m;
return 0;
}
static char *
expand_macro (arg *args, int narg, macro *mac)
{
char *result = 0, *rescanned_result = 0;
char *e = mac->expansion;
char *mark = e;
int mac_arg = 0;
/* printf("expanding macro %s with %d args\n", mac->name, narg + 1); */
while (*e)
{
if (*e == '`' &&
(*e+1) &&
((*(e + 1) - '1') <= MAXARGS) &&
((*(e + 1) - '1') <= narg))
{
result = str_append (result, mark, e - mark);
mac_arg = (*(e + 1) - '1');
/* printf("replacing `%d with %s\n", mac_arg+1, args[mac_arg].start); */
result = str_append (result, args[mac_arg].start, args[mac_arg].len);
++e;
mark = e+1;
}
++e;
}
if (mark != e)
result = str_append (result, mark, e - mark);
if (result)
{
rescanned_result = expand_string (result, 0);
free (result);
return rescanned_result;
}
else
return result;
}
#define IN_TEXT 0
#define IN_ARGS 1
static char *
expand_string (const char *in, int first_only)
{
int num_expansions = 0;
int depth = 0;
int narg = -1;
arg args[MAXARGS];
int state = IN_TEXT;
const char *mark = in;
macro *pmacro = NULL;
char *expansion = 0;
char *result = 0;
while (*in)
{
switch (state)
{
case IN_TEXT:
if (*in == '%' && *(in + 1) && (!first_only || num_expansions == 0))
{
pmacro = lookup_macro (in + 1);
if (pmacro)
{
/* printf("entering state %d at '%s'...\n", state, in); */
result = str_append (result, mark, in - mark);
mark = in;
in += 1 + strlen (pmacro->name);
while (*in == ' ') ++in;
if (*in != '(')
{
state = IN_TEXT;
pmacro = NULL;
}
else
{
state = IN_ARGS;
narg = 0;
args[narg].start = in + 1;
args[narg].len = 0;
mark = in + 1;
}
}
}
break;
case IN_ARGS:
if (depth == 0)
{
switch (*in)
{
case ',':
narg++;
args[narg].start = (in + 1);
args[narg].len = 0;
break;
case ')':
state = IN_TEXT;
/* printf("entering state %d at '%s'...\n", state, in); */
if (pmacro)
{
expansion = 0;
expansion = expand_macro (args, narg, pmacro);
num_expansions++;
if (expansion)
{
result = str_append (result, expansion, strlen (expansion));
free (expansion);
}
}
else
{
result = str_append (result, mark, in - mark);
}
pmacro = NULL;
mark = in + 1;
break;
case '(':
depth++;
default:
args[narg].len++;
break;
}
}
else
{
if (*in == ')')
depth--;
if (narg > -1)
args[narg].len++;
}
}
++in;
}
if (mark != in)
result = str_append (result, mark, in - mark);
return result;
}
#undef IN_ARGS
#undef IN_TEXT
#undef MAXARGS
/* END LIGHTWEIGHT MACRO PROCESSOR. */
const char * mep_cgen_parse_operand
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
const char *
mep_cgen_expand_macros_and_parse_operand (CGEN_CPU_DESC cd, int opindex,
const char ** strp_in, CGEN_FIELDS * fields)
{
const char * errmsg = NULL;
char *str = 0, *hold = 0;
const char **strp = 0;
/* Set up a new pointer to macro-expanded string. */
str = expand_string (*strp_in, 1);
/* fprintf (stderr, " expanded <<%s>> to <<%s>>\n", *strp_in, str); */
hold = str;
strp = (const char **)(&str);
errmsg = mep_cgen_parse_operand (cd, opindex, strp, fields);
/* Now work out the advance. */
if (strlen (str) == 0)
*strp_in += strlen (*strp_in);
else
{
if (strstr (*strp_in, str))
/* A macro-expansion was pulled off the front. */
*strp_in = strstr (*strp_in, str);
else
/* A non-macro-expansion was pulled off the front. */
*strp_in += (str - hold);
}
if (hold)
free (hold);
return errmsg;
}
#define CGEN_ASM_INIT_HOOK (cd->parse_operand = mep_cgen_expand_macros_and_parse_operand);
/* -- dis.c */
#include "elf/mep.h"
#include "elf-bfd.h"
#define CGEN_VALIDATE_INSN_SUPPORTED
static void print_tpreg (CGEN_CPU_DESC, PTR, CGEN_KEYWORD *, long, unsigned int);
static void print_spreg (CGEN_CPU_DESC, PTR, CGEN_KEYWORD *, long, unsigned int);
static void
print_tpreg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, PTR dis_info,
CGEN_KEYWORD *table ATTRIBUTE_UNUSED, long val ATTRIBUTE_UNUSED,
unsigned int flags ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
(*info->fprintf_func) (info->stream, "$tp");
}
static void
print_spreg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, PTR dis_info,
CGEN_KEYWORD *table ATTRIBUTE_UNUSED, long val ATTRIBUTE_UNUSED,
unsigned int flags ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
(*info->fprintf_func) (info->stream, "$sp");
}
/* begin-cop-ip-print-handlers */
static void
print_ivc2_cr (CGEN_CPU_DESC,
void *,
CGEN_KEYWORD *,
long,
unsigned int) ATTRIBUTE_UNUSED;
static void
print_ivc2_cr (CGEN_CPU_DESC cd,
void *dis_info,
CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
long value,
unsigned int attrs)
{
print_keyword (cd, dis_info, & mep_cgen_opval_h_cr_ivc2, value, attrs);
}
static void
print_ivc2_ccr (CGEN_CPU_DESC,
void *,
CGEN_KEYWORD *,
long,
unsigned int) ATTRIBUTE_UNUSED;
static void
print_ivc2_ccr (CGEN_CPU_DESC cd,
void *dis_info,
CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
long value,
unsigned int attrs)
{
print_keyword (cd, dis_info, & mep_cgen_opval_h_ccr_ivc2, value, attrs);
}
/* end-cop-ip-print-handlers */
/************************************************************\
*********************** Experimental *************************
\************************************************************/
#undef CGEN_PRINT_INSN
#define CGEN_PRINT_INSN mep_print_insn
static int
mep_print_vliw_insns (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info,
bfd_byte *buf, int corelength, int copro1length,
int copro2length ATTRIBUTE_UNUSED)
{
int i;
int status = 0;
/* char insnbuf[CGEN_MAX_INSN_SIZE]; */
bfd_byte insnbuf[64];
/* If corelength > 0 then there is a core insn present. It
will be at the beginning of the buffer. After printing
the core insn, we need to print the + on the next line. */
if (corelength > 0)
{
int my_status = 0;
for (i = 0; i < corelength; i++ )
insnbuf[i] = buf[i];
cd->isas = & MEP_CORE_ISA;
my_status = print_insn (cd, pc, info, insnbuf, corelength);
if (my_status != corelength)
{
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
my_status = corelength;
}
status += my_status;
/* Print the + to indicate that the following copro insn is */
/* part of a vliw group. */
if (copro1length > 0)
(*info->fprintf_func) (info->stream, " + ");
}
/* Now all that is left to be processed is the coprocessor insns
In vliw mode, there will always be one. Its positioning will
be from byte corelength to byte corelength+copro1length -1.
No need to check for existence. Also, the first vliw insn,
will, as spec'd, always be at least as long as the core insn
so we don't need to flush the buffer. */
if (copro1length > 0)
{
int my_status = 0;
for (i = corelength; i < corelength + copro1length; i++ )
insnbuf[i - corelength] = buf[i];
switch (copro1length)
{
case 0:
break;
case 2:
cd->isas = & MEP_COP16_ISA;
break;
case 4:
cd->isas = & MEP_COP32_ISA;
break;
case 6:
cd->isas = & MEP_COP48_ISA;
break;
case 8:
cd->isas = & MEP_COP64_ISA;
break;
default:
/* Shouldn't be anything but 16,32,48,64. */