#include "sysdep.h"
#include <stdio.h>
#include "ansidecl.h"
#include "bfd.h"
#include "symcat.h"
#include "iq2000-desc.h"
#include "iq2000-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 *);
#include "safe-ctype.h"
static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'");
int
iq2000_cgen_insn_supported (CGEN_CPU_DESC cd, const CGEN_INSN *insn)
{
int machs = cd->machs;
return (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_MACH) & machs) != 0;
}
static int
iq2000_cgen_isa_register (const char **strp)
{
int len;
int ch1, ch2;
if (**strp == 'r' || **strp == 'R')
{
len = strlen (*strp);
if (len == 2)
{
ch1 = (*strp)[1];
if ('0' <= ch1 && ch1 <= '9')
return 1;
}
else if (len == 3)
{
ch1 = (*strp)[1];
ch2 = (*strp)[2];
if (('1' <= ch1 && ch1 <= '2') && ('0' <= ch2 && ch2 <= '9'))
return 1;
if ('3' == ch1 && (ch2 == '0' || ch2 == '1'))
return 1;
}
}
if (**strp == '%'
&& TOLOWER ((*strp)[1]) != 'l'
&& TOLOWER ((*strp)[1]) != 'h')
return 1;
return 0;
}
static const char *
parse_mimm (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
const char *errmsg;
if (iq2000_cgen_isa_register (strp))
errmsg = _("immediate value cannot be register");
else
{
long value;
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
if (errmsg == NULL)
{
long x = (-value) & 0xFFFF0000;
if (x != 0 && x != (long) 0xFFFF0000)
errmsg = _("immediate value out of range");
else
*valuep = (-value & 0xFFFF);
}
}
return errmsg;
}
static const char *
parse_imm (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
const char *errmsg;
if (iq2000_cgen_isa_register (strp))
errmsg = _("immediate value cannot be register");
else
{
long value;
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
if (errmsg == NULL)
{
long x = value & 0xFFFF0000;
if (x != 0 && x != (long) 0xFFFF0000)
errmsg = _("immediate value out of range");
else
*valuep = (value & 0xFFFF);
}
}
return errmsg;
}
static const char *
parse_jtargq10 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
int reloc ATTRIBUTE_UNUSED,
enum cgen_parse_operand_result *type_addr ATTRIBUTE_UNUSED,
bfd_vma *valuep)
{
const char *errmsg;
bfd_vma value;
enum cgen_parse_operand_result result_type = CGEN_PARSE_OPERAND_RESULT_NUMBER;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IQ2000_OFFSET_21,
& result_type, & value);
if (errmsg == NULL && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
{
if (value > 0x7fffff)
return _("21-bit offset out of range");
}
*valuep = (value & 0x7FFFFF);
return errmsg;
}
static const char *
parse_hi16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
if (strncasecmp (*strp, "%hi(", 4) == 0)
{
enum cgen_parse_operand_result result_type;
bfd_vma value;
const char *errmsg;
*strp += 4;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
& result_type, & value);
if (**strp != ')')
return MISSING_CLOSING_PARENTHESIS;
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
{
if (value & 0x8000)
value += 0x10000;
value >>= 16;
}
*valuep = value;
return errmsg;
}
if (strncasecmp (*strp, "%uhi(", 5) == 0)
{
enum cgen_parse_operand_result result_type;
bfd_vma value;
const char *errmsg;
*strp += 5;
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IQ2000_UHI16,
& result_type, & value);
if (**strp != ')')
return MISSING_CLOSING_PARENTHESIS;
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value >>= 16;
*valuep = value;
return errmsg;
}
return parse_imm (cd, strp, opindex, valuep);
}
static const char *
parse_lo16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
if (strncasecmp (*strp, "%lo(", 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_LO16,
& result_type, & value);
if (**strp != ')')
return MISSING_CLOSING_PARENTHESIS;
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value &= 0xffff;
*valuep = value;
return errmsg;
}
return parse_imm (cd, strp, opindex, valuep);
}
static const char *
parse_mlo16 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
if (strncasecmp (*strp, "%lo(", 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_LO16,
& result_type, & value);
if (**strp != ')')
return MISSING_CLOSING_PARENTHESIS;
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
value = (-value) & 0xffff;
*valuep = value;
return errmsg;
}
return parse_mimm (cd, strp, opindex, valuep);
}
const char * iq2000_cgen_parse_operand
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
const char *
iq2000_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 IQ2000_OPERAND__INDEX :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND__INDEX, (unsigned long *) (& fields->f_index));
break;
case IQ2000_OPERAND_BASE :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rs);
break;
case IQ2000_OPERAND_BASEOFF :
{
bfd_vma value = 0;
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_BASEOFF, 0, NULL, & value);
fields->f_imm = value;
}
break;
case IQ2000_OPERAND_BITNUM :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_BITNUM, (unsigned long *) (& fields->f_rt));
break;
case IQ2000_OPERAND_BYTECOUNT :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_BYTECOUNT, (unsigned long *) (& fields->f_bytecount));
break;
case IQ2000_OPERAND_CAM_Y :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CAM_Y, (unsigned long *) (& fields->f_cam_y));
break;
case IQ2000_OPERAND_CAM_Z :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CAM_Z, (unsigned long *) (& fields->f_cam_z));
break;
case IQ2000_OPERAND_CM_3FUNC :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_3FUNC, (unsigned long *) (& fields->f_cm_3func));
break;
case IQ2000_OPERAND_CM_3Z :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_3Z, (unsigned long *) (& fields->f_cm_3z));
break;
case IQ2000_OPERAND_CM_4FUNC :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_4FUNC, (unsigned long *) (& fields->f_cm_4func));
break;
case IQ2000_OPERAND_CM_4Z :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_4Z, (unsigned long *) (& fields->f_cm_4z));
break;
case IQ2000_OPERAND_COUNT :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_COUNT, (unsigned long *) (& fields->f_count));
break;
case IQ2000_OPERAND_EXECODE :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_EXECODE, (unsigned long *) (& fields->f_excode));
break;
case IQ2000_OPERAND_HI16 :
errmsg = parse_hi16 (cd, strp, IQ2000_OPERAND_HI16, (unsigned long *) (& fields->f_imm));
break;
case IQ2000_OPERAND_IMM :
errmsg = parse_imm (cd, strp, IQ2000_OPERAND_IMM, (unsigned long *) (& fields->f_imm));
break;
case IQ2000_OPERAND_JMPTARG :
{
bfd_vma value = 0;
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_JMPTARG, 0, NULL, & value);
fields->f_jtarg = value;
}
break;
case IQ2000_OPERAND_JMPTARGQ10 :
{
bfd_vma value = 0;
errmsg = parse_jtargq10 (cd, strp, IQ2000_OPERAND_JMPTARGQ10, 0, NULL, & value);
fields->f_jtargq10 = value;
}
break;
case IQ2000_OPERAND_LO16 :
errmsg = parse_lo16 (cd, strp, IQ2000_OPERAND_LO16, (unsigned long *) (& fields->f_imm));
break;
case IQ2000_OPERAND_MASK :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASK, (unsigned long *) (& fields->f_mask));
break;
case IQ2000_OPERAND_MASKL :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKL, (unsigned long *) (& fields->f_maskl));
break;
case IQ2000_OPERAND_MASKQ10 :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKQ10, (unsigned long *) (& fields->f_maskq10));
break;
case IQ2000_OPERAND_MASKR :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKR, (unsigned long *) (& fields->f_rs));
break;
case IQ2000_OPERAND_MLO16 :
errmsg = parse_mlo16 (cd, strp, IQ2000_OPERAND_MLO16, (unsigned long *) (& fields->f_imm));
break;
case IQ2000_OPERAND_OFFSET :
{
bfd_vma value = 0;
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_OFFSET, 0, NULL, & value);
fields->f_offset = value;
}
break;
case IQ2000_OPERAND_RD :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd);
break;
case IQ2000_OPERAND_RD_RS :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd_rs);
break;
case IQ2000_OPERAND_RD_RT :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd_rt);
break;
case IQ2000_OPERAND_RS :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rs);
break;
case IQ2000_OPERAND_RT :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rt);
break;
case IQ2000_OPERAND_RT_RS :
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rt_rs);
break;
case IQ2000_OPERAND_SHAMT :
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_SHAMT, (unsigned long *) (& fields->f_shamt));
break;
default :
fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
abort ();
}
return errmsg;
}
cgen_parse_fn * const iq2000_cgen_parse_handlers[] =
{
parse_insn_normal,
};
void
iq2000_cgen_init_asm (CGEN_CPU_DESC cd)
{
iq2000_cgen_init_opcode_table (cd);
iq2000_cgen_init_ibld_table (cd);
cd->parse_handlers = & iq2000_cgen_parse_handlers[0];
cd->parse_operand = iq2000_cgen_parse_operand;
}
char *
iq2000_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 *
iq2000_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 (! iq2000_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;
}
}