#include "sysdep.h"
#include <stdio.h>
#include "ansidecl.h"
#include "bfd.h"
#include "symcat.h"
#include "fr30-desc.h"
#include "fr30-opc.h"
#include "opintl.h"
#include "xregex.h"
#include "libiberty.h"
#include "safe-ctype.h"
#undef min
#define min(a,b) ((a) < (b) ? (a) : (b))
#undef max
#define max(a,b) ((a) > (b) ? (a) : (b))
static const char * parse_insn_normal
(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
static int
parse_register_number (const char **strp)
{
int regno;
if (**strp < '0' || **strp > '9')
return -1;
regno = **strp - '0';
++*strp;
if (**strp >= '0' && **strp <= '9')
{
regno = regno * 10 + (**strp - '0');
++*strp;
}
return regno;
}
static const char *
parse_register_list (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
const char **strp,
int opindex ATTRIBUTE_UNUSED,
unsigned long *valuep,
int high_low,
int load_store)
{
*valuep = 0;
while (**strp && **strp != ')')
{
int regno;
if (**strp != 'R' && **strp != 'r')
break;
++*strp;
regno = parse_register_number (strp);
if (regno == -1)
return _("Register number is not valid");
if (regno > 7 && !high_low)
return _("Register must be between r0 and r7");
if (regno < 8 && high_low)
return _("Register must be between r8 and r15");
if (high_low)
regno -= 8;
if (load_store)
*valuep |= 0x80 >> regno;
else
*valuep |= 1 << regno;
if (**strp == ',')
{
if (*(*strp + 1) == ')')
break;
++*strp;
}
}
if (!*strp || **strp != ')')
return _("Register list is not valid");
return NULL;
}
static const char *
parse_low_register_list_ld (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
return parse_register_list (cd, strp, opindex, valuep,
0 , 0 );
}
static const char *
parse_hi_register_list_ld (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
return parse_register_list (cd, strp, opindex, valuep,
1 , 0 );
}
static const char *
parse_low_register_list_st (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
return parse_register_list (cd, strp, opindex, valuep,
0 , 1 );
}
static const char *
parse_hi_register_list_st (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
return parse_register_list (cd, strp, opindex, valuep,
1 , 1 );
}
const char * fr30_cgen_parse_operand
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
const char *
fr30_cgen_parse_operand (CGEN_CPU_DESC cd,
int opindex,
const char ** strp,
CGEN_FIELDS * fields)
{
const char * errmsg = NULL;
long junk ATTRIBUTE_UNUSED;
switch (opindex)
{
case FR30_OPERAND_CRI :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_cr_names, & fields->f_CRi);
break;
case FR30_OPERAND_CRJ :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_cr_names, & fields->f_CRj);
break;
case FR30_OPERAND_R13 :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_r13, & junk);
break;
case FR30_OPERAND_R14 :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_r14, & junk);
break;
case FR30_OPERAND_R15 :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_r15, & junk);
break;
case FR30_OPERAND_RI :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Ri);
break;
case FR30_OPERAND_RIC :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Ric);
break;
case FR30_OPERAND_RJ :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Rj);
break;
case FR30_OPERAND_RJC :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_gr_names, & fields->f_Rjc);
break;
case FR30_OPERAND_RS1 :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_dr_names, & fields->f_Rs1);
break;
case FR30_OPERAND_RS2 :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_dr_names, & fields->f_Rs2);
break;
case FR30_OPERAND_CC :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_CC, (unsigned long *) (& fields->f_cc));
break;
case FR30_OPERAND_CCC :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_CCC, (unsigned long *) (& fields->f_ccc));
break;
case FR30_OPERAND_DIR10 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_DIR10, (unsigned long *) (& fields->f_dir10));
break;
case FR30_OPERAND_DIR8 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_DIR8, (unsigned long *) (& fields->f_dir8));
break;
case FR30_OPERAND_DIR9 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_DIR9, (unsigned long *) (& fields->f_dir9));
break;
case FR30_OPERAND_DISP10 :
errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_DISP10, (long *) (& fields->f_disp10));
break;
case FR30_OPERAND_DISP8 :
errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_DISP8, (long *) (& fields->f_disp8));
break;
case FR30_OPERAND_DISP9 :
errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_DISP9, (long *) (& fields->f_disp9));
break;
case FR30_OPERAND_I20 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_I20, (unsigned long *) (& fields->f_i20));
break;
case FR30_OPERAND_I32 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_I32, (unsigned long *) (& fields->f_i32));
break;
case FR30_OPERAND_I8 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_I8, (unsigned long *) (& fields->f_i8));
break;
case FR30_OPERAND_LABEL12 :
{
bfd_vma value = 0;
errmsg = cgen_parse_address (cd, strp, FR30_OPERAND_LABEL12, 0, NULL, & value);
fields->f_rel12 = value;
}
break;
case FR30_OPERAND_LABEL9 :
{
bfd_vma value = 0;
errmsg = cgen_parse_address (cd, strp, FR30_OPERAND_LABEL9, 0, NULL, & value);
fields->f_rel9 = value;
}
break;
case FR30_OPERAND_M4 :
errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_M4, (long *) (& fields->f_m4));
break;
case FR30_OPERAND_PS :
errmsg = cgen_parse_keyword (cd, strp, & fr30_cgen_opval_h_ps, & junk);
break;
case FR30_OPERAND_REGLIST_HI_LD :
errmsg = parse_hi_register_list_ld (cd, strp, FR30_OPERAND_REGLIST_HI_LD, (unsigned long *) (& fields->f_reglist_hi_ld));
break;
case FR30_OPERAND_REGLIST_HI_ST :
errmsg = parse_hi_register_list_st (cd, strp, FR30_OPERAND_REGLIST_HI_ST, (unsigned long *) (& fields->f_reglist_hi_st));
break;
case FR30_OPERAND_REGLIST_LOW_LD :
errmsg = parse_low_register_list_ld (cd, strp, FR30_OPERAND_REGLIST_LOW_LD, (unsigned long *) (& fields->f_reglist_low_ld));
break;
case FR30_OPERAND_REGLIST_LOW_ST :
errmsg = parse_low_register_list_st (cd, strp, FR30_OPERAND_REGLIST_LOW_ST, (unsigned long *) (& fields->f_reglist_low_st));
break;
case FR30_OPERAND_S10 :
errmsg = cgen_parse_signed_integer (cd, strp, FR30_OPERAND_S10, (long *) (& fields->f_s10));
break;
case FR30_OPERAND_U10 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U10, (unsigned long *) (& fields->f_u10));
break;
case FR30_OPERAND_U4 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U4, (unsigned long *) (& fields->f_u4));
break;
case FR30_OPERAND_U4C :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U4C, (unsigned long *) (& fields->f_u4c));
break;
case FR30_OPERAND_U8 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_U8, (unsigned long *) (& fields->f_u8));
break;
case FR30_OPERAND_UDISP6 :
errmsg = cgen_parse_unsigned_integer (cd, strp, FR30_OPERAND_UDISP6, (unsigned long *) (& fields->f_udisp6));
break;
default :
fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
abort ();
}
return errmsg;
}
cgen_parse_fn * const fr30_cgen_parse_handlers[] =
{
parse_insn_normal,
};
void
fr30_cgen_init_asm (CGEN_CPU_DESC cd)
{
fr30_cgen_init_opcode_table (cd);
fr30_cgen_init_ibld_table (cd);
cd->parse_handlers = & fr30_cgen_parse_handlers[0];
cd->parse_operand = fr30_cgen_parse_operand;
}
char *
fr30_cgen_build_insn_regex (CGEN_INSN *insn)
{
CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
const char *mnem = CGEN_INSN_MNEMONIC (insn);
char rxbuf[CGEN_MAX_RX_ELEMENTS];
char *rx = rxbuf;
const CGEN_SYNTAX_CHAR_TYPE *syn;
int reg_err;
syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
return _("missing mnemonic in syntax string");
++syn;
for (; *mnem; mnem++)
{
char c = *mnem;
if (ISALPHA (c))
{
*rx++ = '[';
*rx++ = TOLOWER (c);
*rx++ = TOUPPER (c);
*rx++ = ']';
}
else
*rx++ = c;
}
for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
{
if (CGEN_SYNTAX_CHAR_P (* syn))
{
char c = CGEN_SYNTAX_CHAR (* syn);
switch (c)
{
case '.': case '[': case '\\':
case '*': case '^': case '$':
#ifdef CGEN_ESCAPE_EXTENDED_REGEX
case '?': case '{': case '}':
case '(': case ')': case '*':
case '|': case '+': case ']':
#endif
*rx++ = '\\';
*rx++ = c;
break;
default:
if (ISALPHA (c))
{
*rx++ = '[';
*rx++ = TOLOWER (c);
*rx++ = TOUPPER (c);
*rx++ = ']';
}
else
*rx++ = c;
break;
}
}
else
{
*rx++ = '.';
*rx++ = '*';
}
}
* rx++ = '[';
* rx++ = ' ';
* rx++ = '\t';
* rx++ = ']';
* rx++ = '*';
* rx++ = '$';
* rx = '\0';
CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
if (reg_err == 0)
return NULL;
else
{
static char msg[80];
regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
regfree ((regex_t *) CGEN_INSN_RX (insn));
free (CGEN_INSN_RX (insn));
(CGEN_INSN_RX (insn)) = NULL;
return msg;
}
}
static const char *
parse_insn_normal (CGEN_CPU_DESC cd,
const CGEN_INSN *insn,
const char **strp,
CGEN_FIELDS *fields)
{
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
const char *str = *strp;
const char *errmsg;
const char *p;
const CGEN_SYNTAX_CHAR_TYPE * syn;
#ifdef CGEN_MNEMONIC_OPERANDS
int past_opcode_p;
#endif
p = CGEN_INSN_MNEMONIC (insn);
while (*p && TOLOWER (*p) == TOLOWER (*str))
++p, ++str;
if (* p)
return _("unrecognized instruction");
#ifndef CGEN_MNEMONIC_OPERANDS
if (* str && ! ISSPACE (* str))
return _("unrecognized instruction");
#endif
CGEN_INIT_PARSE (cd);
cgen_init_parse_operand (cd);
#ifdef CGEN_MNEMONIC_OPERANDS
past_opcode_p = 0;
#endif
syn = CGEN_SYNTAX_STRING (syntax);
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
abort ();
++syn;
while (* syn != 0)
{
if (CGEN_SYNTAX_CHAR_P (* syn))
{
if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
{
#ifdef CGEN_MNEMONIC_OPERANDS
if (CGEN_SYNTAX_CHAR(* syn) == ' ')
past_opcode_p = 1;
#endif
++ syn;
++ str;
}
else if (*str)
{
static char msg [80];
sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
CGEN_SYNTAX_CHAR(*syn), *str);
return msg;
}
else
{
static char msg [80];
sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
CGEN_SYNTAX_CHAR(*syn));
return msg;
}
continue;
}
errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn),
&str, fields);
if (errmsg)
return errmsg;
++ syn;
}
if (* syn == 0)
{
while (ISSPACE (* str))
++ str;
if (* str != '\0')
return _("junk at end of line");
return NULL;
}
return _("unrecognized instruction");
}
const CGEN_INSN *
fr30_cgen_assemble_insn (CGEN_CPU_DESC cd,
const char *str,
CGEN_FIELDS *fields,
CGEN_INSN_BYTES_PTR buf,
char **errmsg)
{
const char *start;
CGEN_INSN_LIST *ilist;
const char *parse_errmsg = NULL;
const char *insert_errmsg = NULL;
int recognized_mnemonic = 0;
while (ISSPACE (* str))
++ str;
ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
start = str;
for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
{
const CGEN_INSN *insn = ilist->insn;
recognized_mnemonic = 1;
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
if (! fr30_cgen_insn_supported (cd, insn))
continue;
#endif
if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
continue;
str = start;
if (CGEN_INSN_RX (insn) != NULL &&
regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
continue;
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
if (parse_errmsg != NULL)
continue;
insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
(bfd_vma) 0);
if (insert_errmsg != NULL)
continue;
return insn;
}
{
static char errbuf[150];
#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
const char *tmp_errmsg;
tmp_errmsg = (insert_errmsg ? insert_errmsg :
parse_errmsg ? parse_errmsg :
recognized_mnemonic ?
_("unrecognized form of instruction") :
_("unrecognized instruction"));
if (strlen (start) > 50)
sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
else
sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
#else
if (strlen (start) > 50)
sprintf (errbuf, _("bad instruction `%.50s...'"), start);
else
sprintf (errbuf, _("bad instruction `%.50s'"), start);
#endif
*errmsg = errbuf;
return NULL;
}
}