/* Assembler interface for targets using CGEN. -*- C -*-
|
/* Assembler interface for targets using CGEN. -*- C -*-
|
CGEN: Cpu tools GENerator
|
CGEN: Cpu tools GENerator
|
|
|
THIS FILE IS MACHINE GENERATED WITH CGEN.
|
THIS FILE IS MACHINE GENERATED WITH CGEN.
|
- the resultant file is machine generated, cgen-asm.in isn't
|
- the resultant file is machine generated, cgen-asm.in isn't
|
|
|
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2007, 2008
|
Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2007, 2008
|
Free Software Foundation, Inc.
|
Free Software Foundation, Inc.
|
|
|
This file is part of libopcodes.
|
This file is part of libopcodes.
|
|
|
This library 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
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 3, or (at your option)
|
the Free Software Foundation; either version 3, or (at your option)
|
any later version.
|
any later version.
|
|
|
It is distributed in the hope that it will be useful, but WITHOUT
|
It is distributed in the hope that it will be useful, but WITHOUT
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
License for more details.
|
License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
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.,
|
along with this program; if not, write to the Free Software Foundation, Inc.,
|
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
|
|
|
|
|
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
|
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
|
Keep that in mind. */
|
Keep that in mind. */
|
|
|
#include "sysdep.h"
|
#include "sysdep.h"
|
#include <stdio.h>
|
#include <stdio.h>
|
#include "ansidecl.h"
|
#include "ansidecl.h"
|
#include "bfd.h"
|
#include "bfd.h"
|
#include "symcat.h"
|
#include "symcat.h"
|
#include "iq2000-desc.h"
|
#include "iq2000-desc.h"
|
#include "iq2000-opc.h"
|
#include "iq2000-opc.h"
|
#include "opintl.h"
|
#include "opintl.h"
|
#include "xregex.h"
|
#include "xregex.h"
|
#include "libiberty.h"
|
#include "libiberty.h"
|
#include "safe-ctype.h"
|
#include "safe-ctype.h"
|
|
|
#undef min
|
#undef min
|
#define min(a,b) ((a) < (b) ? (a) : (b))
|
#define min(a,b) ((a) < (b) ? (a) : (b))
|
#undef max
|
#undef max
|
#define max(a,b) ((a) > (b) ? (a) : (b))
|
#define max(a,b) ((a) > (b) ? (a) : (b))
|
|
|
static const char * parse_insn_normal
|
static const char * parse_insn_normal
|
(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
|
(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
|
|
|
/* -- assembler routines inserted here. */
|
/* -- assembler routines inserted here. */
|
|
|
/* -- asm.c */
|
/* -- asm.c */
|
|
|
#include "safe-ctype.h"
|
#include "safe-ctype.h"
|
|
|
static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'");
|
static const char * MISSING_CLOSING_PARENTHESIS = N_("missing `)'");
|
|
|
/* Special check to ensure that instruction exists for given machine. */
|
/* Special check to ensure that instruction exists for given machine. */
|
|
|
int
|
int
|
iq2000_cgen_insn_supported (CGEN_CPU_DESC cd, const CGEN_INSN *insn)
|
iq2000_cgen_insn_supported (CGEN_CPU_DESC cd, const CGEN_INSN *insn)
|
{
|
{
|
int machs = cd->machs;
|
int machs = cd->machs;
|
|
|
return (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_MACH) & machs) != 0;
|
return (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_MACH) & machs) != 0;
|
}
|
}
|
|
|
static int
|
static int
|
iq2000_cgen_isa_register (const char **strp)
|
iq2000_cgen_isa_register (const char **strp)
|
{
|
{
|
int len;
|
int len;
|
int ch1, ch2;
|
int ch1, ch2;
|
|
|
if (**strp == 'r' || **strp == 'R')
|
if (**strp == 'r' || **strp == 'R')
|
{
|
{
|
len = strlen (*strp);
|
len = strlen (*strp);
|
if (len == 2)
|
if (len == 2)
|
{
|
{
|
ch1 = (*strp)[1];
|
ch1 = (*strp)[1];
|
if ('0' <= ch1 && ch1 <= '9')
|
if ('0' <= ch1 && ch1 <= '9')
|
return 1;
|
return 1;
|
}
|
}
|
else if (len == 3)
|
else if (len == 3)
|
{
|
{
|
ch1 = (*strp)[1];
|
ch1 = (*strp)[1];
|
ch2 = (*strp)[2];
|
ch2 = (*strp)[2];
|
if (('1' <= ch1 && ch1 <= '2') && ('0' <= ch2 && ch2 <= '9'))
|
if (('1' <= ch1 && ch1 <= '2') && ('0' <= ch2 && ch2 <= '9'))
|
return 1;
|
return 1;
|
if ('3' == ch1 && (ch2 == '0' || ch2 == '1'))
|
if ('3' == ch1 && (ch2 == '0' || ch2 == '1'))
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
if (**strp == '%'
|
if (**strp == '%'
|
&& TOLOWER ((*strp)[1]) != 'l'
|
&& TOLOWER ((*strp)[1]) != 'l'
|
&& TOLOWER ((*strp)[1]) != 'h')
|
&& TOLOWER ((*strp)[1]) != 'h')
|
return 1;
|
return 1;
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Handle negated literal. */
|
/* Handle negated literal. */
|
|
|
static const char *
|
static const char *
|
parse_mimm (CGEN_CPU_DESC cd,
|
parse_mimm (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
unsigned long *valuep)
|
unsigned long *valuep)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
|
|
/* Verify this isn't a register. */
|
/* Verify this isn't a register. */
|
if (iq2000_cgen_isa_register (strp))
|
if (iq2000_cgen_isa_register (strp))
|
errmsg = _("immediate value cannot be register");
|
errmsg = _("immediate value cannot be register");
|
else
|
else
|
{
|
{
|
long value;
|
long value;
|
|
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
|
if (errmsg == NULL)
|
if (errmsg == NULL)
|
{
|
{
|
long x = (-value) & 0xFFFF0000;
|
long x = (-value) & 0xFFFF0000;
|
|
|
if (x != 0 && x != (long) 0xFFFF0000)
|
if (x != 0 && x != (long) 0xFFFF0000)
|
errmsg = _("immediate value out of range");
|
errmsg = _("immediate value out of range");
|
else
|
else
|
*valuep = (-value & 0xFFFF);
|
*valuep = (-value & 0xFFFF);
|
}
|
}
|
}
|
}
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
/* Handle signed/unsigned literal. */
|
/* Handle signed/unsigned literal. */
|
|
|
static const char *
|
static const char *
|
parse_imm (CGEN_CPU_DESC cd,
|
parse_imm (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
unsigned long *valuep)
|
unsigned long *valuep)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
|
|
if (iq2000_cgen_isa_register (strp))
|
if (iq2000_cgen_isa_register (strp))
|
errmsg = _("immediate value cannot be register");
|
errmsg = _("immediate value cannot be register");
|
else
|
else
|
{
|
{
|
long value;
|
long value;
|
|
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
|
if (errmsg == NULL)
|
if (errmsg == NULL)
|
{
|
{
|
long x = value & 0xFFFF0000;
|
long x = value & 0xFFFF0000;
|
|
|
if (x != 0 && x != (long) 0xFFFF0000)
|
if (x != 0 && x != (long) 0xFFFF0000)
|
errmsg = _("immediate value out of range");
|
errmsg = _("immediate value out of range");
|
else
|
else
|
*valuep = (value & 0xFFFF);
|
*valuep = (value & 0xFFFF);
|
}
|
}
|
}
|
}
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
/* Handle iq10 21-bit jmp offset. */
|
/* Handle iq10 21-bit jmp offset. */
|
|
|
static const char *
|
static const char *
|
parse_jtargq10 (CGEN_CPU_DESC cd,
|
parse_jtargq10 (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
int reloc ATTRIBUTE_UNUSED,
|
int reloc ATTRIBUTE_UNUSED,
|
enum cgen_parse_operand_result *type_addr ATTRIBUTE_UNUSED,
|
enum cgen_parse_operand_result *type_addr ATTRIBUTE_UNUSED,
|
bfd_vma *valuep)
|
bfd_vma *valuep)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
bfd_vma value;
|
bfd_vma value;
|
enum cgen_parse_operand_result result_type = CGEN_PARSE_OPERAND_RESULT_NUMBER;
|
enum cgen_parse_operand_result result_type = CGEN_PARSE_OPERAND_RESULT_NUMBER;
|
|
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IQ2000_OFFSET_21,
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IQ2000_OFFSET_21,
|
& result_type, & value);
|
& result_type, & value);
|
if (errmsg == NULL && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
if (errmsg == NULL && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
{
|
{
|
/* Check value is within 23-bits
|
/* Check value is within 23-bits
|
(remembering that 2-bit shift right will occur). */
|
(remembering that 2-bit shift right will occur). */
|
if (value > 0x7fffff)
|
if (value > 0x7fffff)
|
return _("21-bit offset out of range");
|
return _("21-bit offset out of range");
|
}
|
}
|
*valuep = (value & 0x7FFFFF);
|
*valuep = (value & 0x7FFFFF);
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
/* Handle high(). */
|
/* Handle high(). */
|
|
|
static const char *
|
static const char *
|
parse_hi16 (CGEN_CPU_DESC cd,
|
parse_hi16 (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
unsigned long *valuep)
|
unsigned long *valuep)
|
{
|
{
|
if (strncasecmp (*strp, "%hi(", 4) == 0)
|
if (strncasecmp (*strp, "%hi(", 4) == 0)
|
{
|
{
|
enum cgen_parse_operand_result result_type;
|
enum cgen_parse_operand_result result_type;
|
bfd_vma value;
|
bfd_vma value;
|
const char *errmsg;
|
const char *errmsg;
|
|
|
*strp += 4;
|
*strp += 4;
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_HI16,
|
& result_type, & value);
|
& result_type, & value);
|
if (**strp != ')')
|
if (**strp != ')')
|
return MISSING_CLOSING_PARENTHESIS;
|
return MISSING_CLOSING_PARENTHESIS;
|
|
|
++*strp;
|
++*strp;
|
if (errmsg == NULL
|
if (errmsg == NULL
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
{
|
{
|
/* If value has top-bit of %lo on, then it will
|
/* If value has top-bit of %lo on, then it will
|
sign-propagate and so we compensate by adding
|
sign-propagate and so we compensate by adding
|
1 to the resultant %hi value. */
|
1 to the resultant %hi value. */
|
if (value & 0x8000)
|
if (value & 0x8000)
|
value += 0x10000;
|
value += 0x10000;
|
value >>= 16;
|
value >>= 16;
|
value &= 0xffff;
|
value &= 0xffff;
|
}
|
}
|
*valuep = value;
|
*valuep = value;
|
|
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
/* We add %uhi in case a user just wants the high 16-bits or is using
|
/* We add %uhi in case a user just wants the high 16-bits or is using
|
an insn like ori for %lo which does not sign-propagate. */
|
an insn like ori for %lo which does not sign-propagate. */
|
if (strncasecmp (*strp, "%uhi(", 5) == 0)
|
if (strncasecmp (*strp, "%uhi(", 5) == 0)
|
{
|
{
|
enum cgen_parse_operand_result result_type;
|
enum cgen_parse_operand_result result_type;
|
bfd_vma value;
|
bfd_vma value;
|
const char *errmsg;
|
const char *errmsg;
|
|
|
*strp += 5;
|
*strp += 5;
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IQ2000_UHI16,
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IQ2000_UHI16,
|
& result_type, & value);
|
& result_type, & value);
|
if (**strp != ')')
|
if (**strp != ')')
|
return MISSING_CLOSING_PARENTHESIS;
|
return MISSING_CLOSING_PARENTHESIS;
|
|
|
++*strp;
|
++*strp;
|
if (errmsg == NULL
|
if (errmsg == NULL
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
value >>= 16;
|
value >>= 16;
|
|
|
value &= 0xffff;
|
value &= 0xffff;
|
*valuep = value;
|
*valuep = value;
|
|
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
return parse_imm (cd, strp, opindex, valuep);
|
return parse_imm (cd, strp, opindex, valuep);
|
}
|
}
|
|
|
/* Handle %lo in a signed context.
|
/* Handle %lo in a signed context.
|
The signedness of the value doesn't matter to %lo(), but this also
|
The signedness of the value doesn't matter to %lo(), but this also
|
handles the case where %lo() isn't present. */
|
handles the case where %lo() isn't present. */
|
|
|
static const char *
|
static const char *
|
parse_lo16 (CGEN_CPU_DESC cd,
|
parse_lo16 (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
unsigned long *valuep)
|
unsigned long *valuep)
|
{
|
{
|
if (strncasecmp (*strp, "%lo(", 4) == 0)
|
if (strncasecmp (*strp, "%lo(", 4) == 0)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
enum cgen_parse_operand_result result_type;
|
enum cgen_parse_operand_result result_type;
|
bfd_vma value;
|
bfd_vma value;
|
|
|
*strp += 4;
|
*strp += 4;
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
|
& result_type, & value);
|
& result_type, & value);
|
if (**strp != ')')
|
if (**strp != ')')
|
return MISSING_CLOSING_PARENTHESIS;
|
return MISSING_CLOSING_PARENTHESIS;
|
++*strp;
|
++*strp;
|
if (errmsg == NULL
|
if (errmsg == NULL
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
value &= 0xffff;
|
value &= 0xffff;
|
*valuep = value;
|
*valuep = value;
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
return parse_imm (cd, strp, opindex, valuep);
|
return parse_imm (cd, strp, opindex, valuep);
|
}
|
}
|
|
|
/* Handle %lo in a negated signed context.
|
/* Handle %lo in a negated signed context.
|
The signedness of the value doesn't matter to %lo(), but this also
|
The signedness of the value doesn't matter to %lo(), but this also
|
handles the case where %lo() isn't present. */
|
handles the case where %lo() isn't present. */
|
|
|
static const char *
|
static const char *
|
parse_mlo16 (CGEN_CPU_DESC cd,
|
parse_mlo16 (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
unsigned long *valuep)
|
unsigned long *valuep)
|
{
|
{
|
if (strncasecmp (*strp, "%lo(", 4) == 0)
|
if (strncasecmp (*strp, "%lo(", 4) == 0)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
enum cgen_parse_operand_result result_type;
|
enum cgen_parse_operand_result result_type;
|
bfd_vma value;
|
bfd_vma value;
|
|
|
*strp += 4;
|
*strp += 4;
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
|
errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_LO16,
|
& result_type, & value);
|
& result_type, & value);
|
if (**strp != ')')
|
if (**strp != ')')
|
return MISSING_CLOSING_PARENTHESIS;
|
return MISSING_CLOSING_PARENTHESIS;
|
++*strp;
|
++*strp;
|
if (errmsg == NULL
|
if (errmsg == NULL
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
|
value = (-value) & 0xffff;
|
value = (-value) & 0xffff;
|
*valuep = value;
|
*valuep = value;
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
return parse_mimm (cd, strp, opindex, valuep);
|
return parse_mimm (cd, strp, opindex, valuep);
|
}
|
}
|
|
|
/* -- */
|
/* -- */
|
|
|
const char * iq2000_cgen_parse_operand
|
const char * iq2000_cgen_parse_operand
|
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
|
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
|
|
|
/* Main entry point for operand parsing.
|
/* Main entry point for operand parsing.
|
|
|
This function is basically just a big switch statement. Earlier versions
|
This function is basically just a big switch statement. Earlier versions
|
used tables to look up the function to use, but
|
used tables to look up the function to use, but
|
- if the table contains both assembler and disassembler functions then
|
- if the table contains both assembler and disassembler functions then
|
the disassembler contains much of the assembler and vice-versa,
|
the disassembler contains much of the assembler and vice-versa,
|
- there's a lot of inlining possibilities as things grow,
|
- there's a lot of inlining possibilities as things grow,
|
- using a switch statement avoids the function call overhead.
|
- using a switch statement avoids the function call overhead.
|
|
|
This function could be moved into `parse_insn_normal', but keeping it
|
This function could be moved into `parse_insn_normal', but keeping it
|
separate makes clear the interface between `parse_insn_normal' and each of
|
separate makes clear the interface between `parse_insn_normal' and each of
|
the handlers. */
|
the handlers. */
|
|
|
const char *
|
const char *
|
iq2000_cgen_parse_operand (CGEN_CPU_DESC cd,
|
iq2000_cgen_parse_operand (CGEN_CPU_DESC cd,
|
int opindex,
|
int opindex,
|
const char ** strp,
|
const char ** strp,
|
CGEN_FIELDS * fields)
|
CGEN_FIELDS * fields)
|
{
|
{
|
const char * errmsg = NULL;
|
const char * errmsg = NULL;
|
/* Used by scalar operands that still need to be parsed. */
|
/* Used by scalar operands that still need to be parsed. */
|
long junk ATTRIBUTE_UNUSED;
|
long junk ATTRIBUTE_UNUSED;
|
|
|
switch (opindex)
|
switch (opindex)
|
{
|
{
|
case IQ2000_OPERAND__INDEX :
|
case IQ2000_OPERAND__INDEX :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND__INDEX, (unsigned long *) (& fields->f_index));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND__INDEX, (unsigned long *) (& fields->f_index));
|
break;
|
break;
|
case IQ2000_OPERAND_BASE :
|
case IQ2000_OPERAND_BASE :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rs);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rs);
|
break;
|
break;
|
case IQ2000_OPERAND_BASEOFF :
|
case IQ2000_OPERAND_BASEOFF :
|
{
|
{
|
bfd_vma value = 0;
|
bfd_vma value = 0;
|
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_BASEOFF, 0, NULL, & value);
|
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_BASEOFF, 0, NULL, & value);
|
fields->f_imm = value;
|
fields->f_imm = value;
|
}
|
}
|
break;
|
break;
|
case IQ2000_OPERAND_BITNUM :
|
case IQ2000_OPERAND_BITNUM :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_BITNUM, (unsigned long *) (& fields->f_rt));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_BITNUM, (unsigned long *) (& fields->f_rt));
|
break;
|
break;
|
case IQ2000_OPERAND_BYTECOUNT :
|
case IQ2000_OPERAND_BYTECOUNT :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_BYTECOUNT, (unsigned long *) (& fields->f_bytecount));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_BYTECOUNT, (unsigned long *) (& fields->f_bytecount));
|
break;
|
break;
|
case IQ2000_OPERAND_CAM_Y :
|
case IQ2000_OPERAND_CAM_Y :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CAM_Y, (unsigned long *) (& fields->f_cam_y));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CAM_Y, (unsigned long *) (& fields->f_cam_y));
|
break;
|
break;
|
case IQ2000_OPERAND_CAM_Z :
|
case IQ2000_OPERAND_CAM_Z :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CAM_Z, (unsigned long *) (& fields->f_cam_z));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CAM_Z, (unsigned long *) (& fields->f_cam_z));
|
break;
|
break;
|
case IQ2000_OPERAND_CM_3FUNC :
|
case IQ2000_OPERAND_CM_3FUNC :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_3FUNC, (unsigned long *) (& fields->f_cm_3func));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_3FUNC, (unsigned long *) (& fields->f_cm_3func));
|
break;
|
break;
|
case IQ2000_OPERAND_CM_3Z :
|
case IQ2000_OPERAND_CM_3Z :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_3Z, (unsigned long *) (& fields->f_cm_3z));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_3Z, (unsigned long *) (& fields->f_cm_3z));
|
break;
|
break;
|
case IQ2000_OPERAND_CM_4FUNC :
|
case IQ2000_OPERAND_CM_4FUNC :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_4FUNC, (unsigned long *) (& fields->f_cm_4func));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_4FUNC, (unsigned long *) (& fields->f_cm_4func));
|
break;
|
break;
|
case IQ2000_OPERAND_CM_4Z :
|
case IQ2000_OPERAND_CM_4Z :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_4Z, (unsigned long *) (& fields->f_cm_4z));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_CM_4Z, (unsigned long *) (& fields->f_cm_4z));
|
break;
|
break;
|
case IQ2000_OPERAND_COUNT :
|
case IQ2000_OPERAND_COUNT :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_COUNT, (unsigned long *) (& fields->f_count));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_COUNT, (unsigned long *) (& fields->f_count));
|
break;
|
break;
|
case IQ2000_OPERAND_EXECODE :
|
case IQ2000_OPERAND_EXECODE :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_EXECODE, (unsigned long *) (& fields->f_excode));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_EXECODE, (unsigned long *) (& fields->f_excode));
|
break;
|
break;
|
case IQ2000_OPERAND_HI16 :
|
case IQ2000_OPERAND_HI16 :
|
errmsg = parse_hi16 (cd, strp, IQ2000_OPERAND_HI16, (unsigned long *) (& fields->f_imm));
|
errmsg = parse_hi16 (cd, strp, IQ2000_OPERAND_HI16, (unsigned long *) (& fields->f_imm));
|
break;
|
break;
|
case IQ2000_OPERAND_IMM :
|
case IQ2000_OPERAND_IMM :
|
errmsg = parse_imm (cd, strp, IQ2000_OPERAND_IMM, (unsigned long *) (& fields->f_imm));
|
errmsg = parse_imm (cd, strp, IQ2000_OPERAND_IMM, (unsigned long *) (& fields->f_imm));
|
break;
|
break;
|
case IQ2000_OPERAND_JMPTARG :
|
case IQ2000_OPERAND_JMPTARG :
|
{
|
{
|
bfd_vma value = 0;
|
bfd_vma value = 0;
|
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_JMPTARG, 0, NULL, & value);
|
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_JMPTARG, 0, NULL, & value);
|
fields->f_jtarg = value;
|
fields->f_jtarg = value;
|
}
|
}
|
break;
|
break;
|
case IQ2000_OPERAND_JMPTARGQ10 :
|
case IQ2000_OPERAND_JMPTARGQ10 :
|
{
|
{
|
bfd_vma value = 0;
|
bfd_vma value = 0;
|
errmsg = parse_jtargq10 (cd, strp, IQ2000_OPERAND_JMPTARGQ10, 0, NULL, & value);
|
errmsg = parse_jtargq10 (cd, strp, IQ2000_OPERAND_JMPTARGQ10, 0, NULL, & value);
|
fields->f_jtargq10 = value;
|
fields->f_jtargq10 = value;
|
}
|
}
|
break;
|
break;
|
case IQ2000_OPERAND_LO16 :
|
case IQ2000_OPERAND_LO16 :
|
errmsg = parse_lo16 (cd, strp, IQ2000_OPERAND_LO16, (unsigned long *) (& fields->f_imm));
|
errmsg = parse_lo16 (cd, strp, IQ2000_OPERAND_LO16, (unsigned long *) (& fields->f_imm));
|
break;
|
break;
|
case IQ2000_OPERAND_MASK :
|
case IQ2000_OPERAND_MASK :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASK, (unsigned long *) (& fields->f_mask));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASK, (unsigned long *) (& fields->f_mask));
|
break;
|
break;
|
case IQ2000_OPERAND_MASKL :
|
case IQ2000_OPERAND_MASKL :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKL, (unsigned long *) (& fields->f_maskl));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKL, (unsigned long *) (& fields->f_maskl));
|
break;
|
break;
|
case IQ2000_OPERAND_MASKQ10 :
|
case IQ2000_OPERAND_MASKQ10 :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKQ10, (unsigned long *) (& fields->f_maskq10));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKQ10, (unsigned long *) (& fields->f_maskq10));
|
break;
|
break;
|
case IQ2000_OPERAND_MASKR :
|
case IQ2000_OPERAND_MASKR :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKR, (unsigned long *) (& fields->f_rs));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_MASKR, (unsigned long *) (& fields->f_rs));
|
break;
|
break;
|
case IQ2000_OPERAND_MLO16 :
|
case IQ2000_OPERAND_MLO16 :
|
errmsg = parse_mlo16 (cd, strp, IQ2000_OPERAND_MLO16, (unsigned long *) (& fields->f_imm));
|
errmsg = parse_mlo16 (cd, strp, IQ2000_OPERAND_MLO16, (unsigned long *) (& fields->f_imm));
|
break;
|
break;
|
case IQ2000_OPERAND_OFFSET :
|
case IQ2000_OPERAND_OFFSET :
|
{
|
{
|
bfd_vma value = 0;
|
bfd_vma value = 0;
|
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_OFFSET, 0, NULL, & value);
|
errmsg = cgen_parse_address (cd, strp, IQ2000_OPERAND_OFFSET, 0, NULL, & value);
|
fields->f_offset = value;
|
fields->f_offset = value;
|
}
|
}
|
break;
|
break;
|
case IQ2000_OPERAND_RD :
|
case IQ2000_OPERAND_RD :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd);
|
break;
|
break;
|
case IQ2000_OPERAND_RD_RS :
|
case IQ2000_OPERAND_RD_RS :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd_rs);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd_rs);
|
break;
|
break;
|
case IQ2000_OPERAND_RD_RT :
|
case IQ2000_OPERAND_RD_RT :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd_rt);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rd_rt);
|
break;
|
break;
|
case IQ2000_OPERAND_RS :
|
case IQ2000_OPERAND_RS :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rs);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rs);
|
break;
|
break;
|
case IQ2000_OPERAND_RT :
|
case IQ2000_OPERAND_RT :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rt);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rt);
|
break;
|
break;
|
case IQ2000_OPERAND_RT_RS :
|
case IQ2000_OPERAND_RT_RS :
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rt_rs);
|
errmsg = cgen_parse_keyword (cd, strp, & iq2000_cgen_opval_gr_names, & fields->f_rt_rs);
|
break;
|
break;
|
case IQ2000_OPERAND_SHAMT :
|
case IQ2000_OPERAND_SHAMT :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_SHAMT, (unsigned long *) (& fields->f_shamt));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IQ2000_OPERAND_SHAMT, (unsigned long *) (& fields->f_shamt));
|
break;
|
break;
|
|
|
default :
|
default :
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
|
fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
|
abort ();
|
abort ();
|
}
|
}
|
|
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
cgen_parse_fn * const iq2000_cgen_parse_handlers[] =
|
cgen_parse_fn * const iq2000_cgen_parse_handlers[] =
|
{
|
{
|
parse_insn_normal,
|
parse_insn_normal,
|
};
|
};
|
|
|
void
|
void
|
iq2000_cgen_init_asm (CGEN_CPU_DESC cd)
|
iq2000_cgen_init_asm (CGEN_CPU_DESC cd)
|
{
|
{
|
iq2000_cgen_init_opcode_table (cd);
|
iq2000_cgen_init_opcode_table (cd);
|
iq2000_cgen_init_ibld_table (cd);
|
iq2000_cgen_init_ibld_table (cd);
|
cd->parse_handlers = & iq2000_cgen_parse_handlers[0];
|
cd->parse_handlers = & iq2000_cgen_parse_handlers[0];
|
cd->parse_operand = iq2000_cgen_parse_operand;
|
cd->parse_operand = iq2000_cgen_parse_operand;
|
#ifdef CGEN_ASM_INIT_HOOK
|
#ifdef CGEN_ASM_INIT_HOOK
|
CGEN_ASM_INIT_HOOK
|
CGEN_ASM_INIT_HOOK
|
#endif
|
#endif
|
}
|
}
|
|
|
|
|
|
|
/* Regex construction routine.
|
/* Regex construction routine.
|
|
|
This translates an opcode syntax string into a regex string,
|
This translates an opcode syntax string into a regex string,
|
by replacing any non-character syntax element (such as an
|
by replacing any non-character syntax element (such as an
|
opcode) with the pattern '.*'
|
opcode) with the pattern '.*'
|
|
|
It then compiles the regex and stores it in the opcode, for
|
It then compiles the regex and stores it in the opcode, for
|
later use by iq2000_cgen_assemble_insn
|
later use by iq2000_cgen_assemble_insn
|
|
|
Returns NULL for success, an error message for failure. */
|
Returns NULL for success, an error message for failure. */
|
|
|
char *
|
char *
|
iq2000_cgen_build_insn_regex (CGEN_INSN *insn)
|
iq2000_cgen_build_insn_regex (CGEN_INSN *insn)
|
{
|
{
|
CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
|
CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
|
const char *mnem = CGEN_INSN_MNEMONIC (insn);
|
const char *mnem = CGEN_INSN_MNEMONIC (insn);
|
char rxbuf[CGEN_MAX_RX_ELEMENTS];
|
char rxbuf[CGEN_MAX_RX_ELEMENTS];
|
char *rx = rxbuf;
|
char *rx = rxbuf;
|
const CGEN_SYNTAX_CHAR_TYPE *syn;
|
const CGEN_SYNTAX_CHAR_TYPE *syn;
|
int reg_err;
|
int reg_err;
|
|
|
syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
|
syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
|
|
|
/* Mnemonics come first in the syntax string. */
|
/* Mnemonics come first in the syntax string. */
|
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
|
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
|
return _("missing mnemonic in syntax string");
|
return _("missing mnemonic in syntax string");
|
++syn;
|
++syn;
|
|
|
/* Generate a case sensitive regular expression that emulates case
|
/* Generate a case sensitive regular expression that emulates case
|
insensitive matching in the "C" locale. We cannot generate a case
|
insensitive matching in the "C" locale. We cannot generate a case
|
insensitive regular expression because in Turkish locales, 'i' and 'I'
|
insensitive regular expression because in Turkish locales, 'i' and 'I'
|
are not equal modulo case conversion. */
|
are not equal modulo case conversion. */
|
|
|
/* Copy the literal mnemonic out of the insn. */
|
/* Copy the literal mnemonic out of the insn. */
|
for (; *mnem; mnem++)
|
for (; *mnem; mnem++)
|
{
|
{
|
char c = *mnem;
|
char c = *mnem;
|
|
|
if (ISALPHA (c))
|
if (ISALPHA (c))
|
{
|
{
|
*rx++ = '[';
|
*rx++ = '[';
|
*rx++ = TOLOWER (c);
|
*rx++ = TOLOWER (c);
|
*rx++ = TOUPPER (c);
|
*rx++ = TOUPPER (c);
|
*rx++ = ']';
|
*rx++ = ']';
|
}
|
}
|
else
|
else
|
*rx++ = c;
|
*rx++ = c;
|
}
|
}
|
|
|
/* Copy any remaining literals from the syntax string into the rx. */
|
/* Copy any remaining literals from the syntax string into the rx. */
|
for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
|
for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
|
{
|
{
|
if (CGEN_SYNTAX_CHAR_P (* syn))
|
if (CGEN_SYNTAX_CHAR_P (* syn))
|
{
|
{
|
char c = CGEN_SYNTAX_CHAR (* syn);
|
char c = CGEN_SYNTAX_CHAR (* syn);
|
|
|
switch (c)
|
switch (c)
|
{
|
{
|
/* Escape any regex metacharacters in the syntax. */
|
/* Escape any regex metacharacters in the syntax. */
|
case '.': case '[': case '\\':
|
case '.': case '[': case '\\':
|
case '*': case '^': case '$':
|
case '*': case '^': case '$':
|
|
|
#ifdef CGEN_ESCAPE_EXTENDED_REGEX
|
#ifdef CGEN_ESCAPE_EXTENDED_REGEX
|
case '?': case '{': case '}':
|
case '?': case '{': case '}':
|
case '(': case ')': case '*':
|
case '(': case ')': case '*':
|
case '|': case '+': case ']':
|
case '|': case '+': case ']':
|
#endif
|
#endif
|
*rx++ = '\\';
|
*rx++ = '\\';
|
*rx++ = c;
|
*rx++ = c;
|
break;
|
break;
|
|
|
default:
|
default:
|
if (ISALPHA (c))
|
if (ISALPHA (c))
|
{
|
{
|
*rx++ = '[';
|
*rx++ = '[';
|
*rx++ = TOLOWER (c);
|
*rx++ = TOLOWER (c);
|
*rx++ = TOUPPER (c);
|
*rx++ = TOUPPER (c);
|
*rx++ = ']';
|
*rx++ = ']';
|
}
|
}
|
else
|
else
|
*rx++ = c;
|
*rx++ = c;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Replace non-syntax fields with globs. */
|
/* Replace non-syntax fields with globs. */
|
*rx++ = '.';
|
*rx++ = '.';
|
*rx++ = '*';
|
*rx++ = '*';
|
}
|
}
|
}
|
}
|
|
|
/* Trailing whitespace ok. */
|
/* Trailing whitespace ok. */
|
* rx++ = '[';
|
* rx++ = '[';
|
* rx++ = ' ';
|
* rx++ = ' ';
|
* rx++ = '\t';
|
* rx++ = '\t';
|
* rx++ = ']';
|
* rx++ = ']';
|
* rx++ = '*';
|
* rx++ = '*';
|
|
|
/* But anchor it after that. */
|
/* But anchor it after that. */
|
* rx++ = '$';
|
* rx++ = '$';
|
* rx = '\0';
|
* rx = '\0';
|
|
|
CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
|
CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
|
reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
|
reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
|
|
|
if (reg_err == 0)
|
if (reg_err == 0)
|
return NULL;
|
return NULL;
|
else
|
else
|
{
|
{
|
static char msg[80];
|
static char msg[80];
|
|
|
regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
|
regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
|
regfree ((regex_t *) CGEN_INSN_RX (insn));
|
regfree ((regex_t *) CGEN_INSN_RX (insn));
|
free (CGEN_INSN_RX (insn));
|
free (CGEN_INSN_RX (insn));
|
(CGEN_INSN_RX (insn)) = NULL;
|
(CGEN_INSN_RX (insn)) = NULL;
|
return msg;
|
return msg;
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Default insn parser.
|
/* Default insn parser.
|
|
|
The syntax string is scanned and operands are parsed and stored in FIELDS.
|
The syntax string is scanned and operands are parsed and stored in FIELDS.
|
Relocs are queued as we go via other callbacks.
|
Relocs are queued as we go via other callbacks.
|
|
|
??? Note that this is currently an all-or-nothing parser. If we fail to
|
??? Note that this is currently an all-or-nothing parser. If we fail to
|
parse the instruction, we return 0 and the caller will start over from
|
parse the instruction, we return 0 and the caller will start over from
|
the beginning. Backtracking will be necessary in parsing subexpressions,
|
the beginning. Backtracking will be necessary in parsing subexpressions,
|
but that can be handled there. Not handling backtracking here may get
|
but that can be handled there. Not handling backtracking here may get
|
expensive in the case of the m68k. Deal with later.
|
expensive in the case of the m68k. Deal with later.
|
|
|
Returns NULL for success, an error message for failure. */
|
Returns NULL for success, an error message for failure. */
|
|
|
static const char *
|
static const char *
|
parse_insn_normal (CGEN_CPU_DESC cd,
|
parse_insn_normal (CGEN_CPU_DESC cd,
|
const CGEN_INSN *insn,
|
const CGEN_INSN *insn,
|
const char **strp,
|
const char **strp,
|
CGEN_FIELDS *fields)
|
CGEN_FIELDS *fields)
|
{
|
{
|
/* ??? Runtime added insns not handled yet. */
|
/* ??? Runtime added insns not handled yet. */
|
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
|
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
|
const char *str = *strp;
|
const char *str = *strp;
|
const char *errmsg;
|
const char *errmsg;
|
const char *p;
|
const char *p;
|
const CGEN_SYNTAX_CHAR_TYPE * syn;
|
const CGEN_SYNTAX_CHAR_TYPE * syn;
|
#ifdef CGEN_MNEMONIC_OPERANDS
|
#ifdef CGEN_MNEMONIC_OPERANDS
|
/* FIXME: wip */
|
/* FIXME: wip */
|
int past_opcode_p;
|
int past_opcode_p;
|
#endif
|
#endif
|
|
|
/* For now we assume the mnemonic is first (there are no leading operands).
|
/* For now we assume the mnemonic is first (there are no leading operands).
|
We can parse it without needing to set up operand parsing.
|
We can parse it without needing to set up operand parsing.
|
GAS's input scrubber will ensure mnemonics are lowercase, but we may
|
GAS's input scrubber will ensure mnemonics are lowercase, but we may
|
not be called from GAS. */
|
not be called from GAS. */
|
p = CGEN_INSN_MNEMONIC (insn);
|
p = CGEN_INSN_MNEMONIC (insn);
|
while (*p && TOLOWER (*p) == TOLOWER (*str))
|
while (*p && TOLOWER (*p) == TOLOWER (*str))
|
++p, ++str;
|
++p, ++str;
|
|
|
if (* p)
|
if (* p)
|
return _("unrecognized instruction");
|
return _("unrecognized instruction");
|
|
|
#ifndef CGEN_MNEMONIC_OPERANDS
|
#ifndef CGEN_MNEMONIC_OPERANDS
|
if (* str && ! ISSPACE (* str))
|
if (* str && ! ISSPACE (* str))
|
return _("unrecognized instruction");
|
return _("unrecognized instruction");
|
#endif
|
#endif
|
|
|
CGEN_INIT_PARSE (cd);
|
CGEN_INIT_PARSE (cd);
|
cgen_init_parse_operand (cd);
|
cgen_init_parse_operand (cd);
|
#ifdef CGEN_MNEMONIC_OPERANDS
|
#ifdef CGEN_MNEMONIC_OPERANDS
|
past_opcode_p = 0;
|
past_opcode_p = 0;
|
#endif
|
#endif
|
|
|
/* We don't check for (*str != '\0') here because we want to parse
|
/* We don't check for (*str != '\0') here because we want to parse
|
any trailing fake arguments in the syntax string. */
|
any trailing fake arguments in the syntax string. */
|
syn = CGEN_SYNTAX_STRING (syntax);
|
syn = CGEN_SYNTAX_STRING (syntax);
|
|
|
/* Mnemonics come first for now, ensure valid string. */
|
/* Mnemonics come first for now, ensure valid string. */
|
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
|
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
|
abort ();
|
abort ();
|
|
|
++syn;
|
++syn;
|
|
|
while (* syn != 0)
|
while (* syn != 0)
|
{
|
{
|
/* Non operand chars must match exactly. */
|
/* Non operand chars must match exactly. */
|
if (CGEN_SYNTAX_CHAR_P (* syn))
|
if (CGEN_SYNTAX_CHAR_P (* syn))
|
{
|
{
|
/* FIXME: While we allow for non-GAS callers above, we assume the
|
/* FIXME: While we allow for non-GAS callers above, we assume the
|
first char after the mnemonic part is a space. */
|
first char after the mnemonic part is a space. */
|
/* FIXME: We also take inappropriate advantage of the fact that
|
/* FIXME: We also take inappropriate advantage of the fact that
|
GAS's input scrubber will remove extraneous blanks. */
|
GAS's input scrubber will remove extraneous blanks. */
|
if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
|
if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
|
{
|
{
|
#ifdef CGEN_MNEMONIC_OPERANDS
|
#ifdef CGEN_MNEMONIC_OPERANDS
|
if (CGEN_SYNTAX_CHAR(* syn) == ' ')
|
if (CGEN_SYNTAX_CHAR(* syn) == ' ')
|
past_opcode_p = 1;
|
past_opcode_p = 1;
|
#endif
|
#endif
|
++ syn;
|
++ syn;
|
++ str;
|
++ str;
|
}
|
}
|
else if (*str)
|
else if (*str)
|
{
|
{
|
/* Syntax char didn't match. Can't be this insn. */
|
/* Syntax char didn't match. Can't be this insn. */
|
static char msg [80];
|
static char msg [80];
|
|
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
|
sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
|
CGEN_SYNTAX_CHAR(*syn), *str);
|
CGEN_SYNTAX_CHAR(*syn), *str);
|
return msg;
|
return msg;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* Ran out of input. */
|
/* Ran out of input. */
|
static char msg [80];
|
static char msg [80];
|
|
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
|
sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
|
CGEN_SYNTAX_CHAR(*syn));
|
CGEN_SYNTAX_CHAR(*syn));
|
return msg;
|
return msg;
|
}
|
}
|
continue;
|
continue;
|
}
|
}
|
|
|
/* We have an operand of some sort. */
|
/* We have an operand of some sort. */
|
errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn),
|
errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn),
|
&str, fields);
|
&str, fields);
|
if (errmsg)
|
if (errmsg)
|
return errmsg;
|
return errmsg;
|
|
|
/* Done with this operand, continue with next one. */
|
/* Done with this operand, continue with next one. */
|
++ syn;
|
++ syn;
|
}
|
}
|
|
|
/* If we're at the end of the syntax string, we're done. */
|
/* If we're at the end of the syntax string, we're done. */
|
if (* syn == 0)
|
if (* syn == 0)
|
{
|
{
|
/* FIXME: For the moment we assume a valid `str' can only contain
|
/* FIXME: For the moment we assume a valid `str' can only contain
|
blanks now. IE: We needn't try again with a longer version of
|
blanks now. IE: We needn't try again with a longer version of
|
the insn and it is assumed that longer versions of insns appear
|
the insn and it is assumed that longer versions of insns appear
|
before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
|
before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
|
while (ISSPACE (* str))
|
while (ISSPACE (* str))
|
++ str;
|
++ str;
|
|
|
if (* str != '\0')
|
if (* str != '\0')
|
return _("junk at end of line"); /* FIXME: would like to include `str' */
|
return _("junk at end of line"); /* FIXME: would like to include `str' */
|
|
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* We couldn't parse it. */
|
/* We couldn't parse it. */
|
return _("unrecognized instruction");
|
return _("unrecognized instruction");
|
}
|
}
|
|
|
/* Main entry point.
|
/* Main entry point.
|
This routine is called for each instruction to be assembled.
|
This routine is called for each instruction to be assembled.
|
STR points to the insn to be assembled.
|
STR points to the insn to be assembled.
|
We assume all necessary tables have been initialized.
|
We assume all necessary tables have been initialized.
|
The assembled instruction, less any fixups, is stored in BUF.
|
The assembled instruction, less any fixups, is stored in BUF.
|
Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
|
Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
|
still needs to be converted to target byte order, otherwise BUF is an array
|
still needs to be converted to target byte order, otherwise BUF is an array
|
of bytes in target byte order.
|
of bytes in target byte order.
|
The result is a pointer to the insn's entry in the opcode table,
|
The result is a pointer to the insn's entry in the opcode table,
|
or NULL if an error occured (an error message will have already been
|
or NULL if an error occured (an error message will have already been
|
printed).
|
printed).
|
|
|
Note that when processing (non-alias) macro-insns,
|
Note that when processing (non-alias) macro-insns,
|
this function recurses.
|
this function recurses.
|
|
|
??? It's possible to make this cpu-independent.
|
??? It's possible to make this cpu-independent.
|
One would have to deal with a few minor things.
|
One would have to deal with a few minor things.
|
At this point in time doing so would be more of a curiosity than useful
|
At this point in time doing so would be more of a curiosity than useful
|
[for example this file isn't _that_ big], but keeping the possibility in
|
[for example this file isn't _that_ big], but keeping the possibility in
|
mind helps keep the design clean. */
|
mind helps keep the design clean. */
|
|
|
const CGEN_INSN *
|
const CGEN_INSN *
|
iq2000_cgen_assemble_insn (CGEN_CPU_DESC cd,
|
iq2000_cgen_assemble_insn (CGEN_CPU_DESC cd,
|
const char *str,
|
const char *str,
|
CGEN_FIELDS *fields,
|
CGEN_FIELDS *fields,
|
CGEN_INSN_BYTES_PTR buf,
|
CGEN_INSN_BYTES_PTR buf,
|
char **errmsg)
|
char **errmsg)
|
{
|
{
|
const char *start;
|
const char *start;
|
CGEN_INSN_LIST *ilist;
|
CGEN_INSN_LIST *ilist;
|
const char *parse_errmsg = NULL;
|
const char *parse_errmsg = NULL;
|
const char *insert_errmsg = NULL;
|
const char *insert_errmsg = NULL;
|
int recognized_mnemonic = 0;
|
int recognized_mnemonic = 0;
|
|
|
/* Skip leading white space. */
|
/* Skip leading white space. */
|
while (ISSPACE (* str))
|
while (ISSPACE (* str))
|
++ str;
|
++ str;
|
|
|
/* The instructions are stored in hashed lists.
|
/* The instructions are stored in hashed lists.
|
Get the first in the list. */
|
Get the first in the list. */
|
ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
|
ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
|
|
|
/* Keep looking until we find a match. */
|
/* Keep looking until we find a match. */
|
start = str;
|
start = str;
|
for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
|
for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
|
{
|
{
|
const CGEN_INSN *insn = ilist->insn;
|
const CGEN_INSN *insn = ilist->insn;
|
recognized_mnemonic = 1;
|
recognized_mnemonic = 1;
|
|
|
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
|
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
|
/* Not usually needed as unsupported opcodes
|
/* Not usually needed as unsupported opcodes
|
shouldn't be in the hash lists. */
|
shouldn't be in the hash lists. */
|
/* Is this insn supported by the selected cpu? */
|
/* Is this insn supported by the selected cpu? */
|
if (! iq2000_cgen_insn_supported (cd, insn))
|
if (! iq2000_cgen_insn_supported (cd, insn))
|
continue;
|
continue;
|
#endif
|
#endif
|
/* If the RELAXED attribute is set, this is an insn that shouldn't be
|
/* If the RELAXED attribute is set, this is an insn that shouldn't be
|
chosen immediately. Instead, it is used during assembler/linker
|
chosen immediately. Instead, it is used during assembler/linker
|
relaxation if possible. */
|
relaxation if possible. */
|
if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
|
if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
|
continue;
|
continue;
|
|
|
str = start;
|
str = start;
|
|
|
/* Skip this insn if str doesn't look right lexically. */
|
/* Skip this insn if str doesn't look right lexically. */
|
if (CGEN_INSN_RX (insn) != NULL &&
|
if (CGEN_INSN_RX (insn) != NULL &&
|
regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
|
regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
|
continue;
|
continue;
|
|
|
/* Allow parse/insert handlers to obtain length of insn. */
|
/* Allow parse/insert handlers to obtain length of insn. */
|
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
|
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
|
|
|
parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
|
parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
|
if (parse_errmsg != NULL)
|
if (parse_errmsg != NULL)
|
continue;
|
continue;
|
|
|
/* ??? 0 is passed for `pc'. */
|
/* ??? 0 is passed for `pc'. */
|
insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
|
insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
|
(bfd_vma) 0);
|
(bfd_vma) 0);
|
if (insert_errmsg != NULL)
|
if (insert_errmsg != NULL)
|
continue;
|
continue;
|
|
|
/* It is up to the caller to actually output the insn and any
|
/* It is up to the caller to actually output the insn and any
|
queued relocs. */
|
queued relocs. */
|
return insn;
|
return insn;
|
}
|
}
|
|
|
{
|
{
|
static char errbuf[150];
|
static char errbuf[150];
|
#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
|
#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
|
const char *tmp_errmsg;
|
const char *tmp_errmsg;
|
|
|
/* If requesting verbose error messages, use insert_errmsg.
|
/* If requesting verbose error messages, use insert_errmsg.
|
Failing that, use parse_errmsg. */
|
Failing that, use parse_errmsg. */
|
tmp_errmsg = (insert_errmsg ? insert_errmsg :
|
tmp_errmsg = (insert_errmsg ? insert_errmsg :
|
parse_errmsg ? parse_errmsg :
|
parse_errmsg ? parse_errmsg :
|
recognized_mnemonic ?
|
recognized_mnemonic ?
|
_("unrecognized form of instruction") :
|
_("unrecognized form of instruction") :
|
_("unrecognized instruction"));
|
_("unrecognized instruction"));
|
|
|
if (strlen (start) > 50)
|
if (strlen (start) > 50)
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
|
sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
|
else
|
else
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
|
sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
|
#else
|
#else
|
if (strlen (start) > 50)
|
if (strlen (start) > 50)
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
sprintf (errbuf, _("bad instruction `%.50s...'"), start);
|
sprintf (errbuf, _("bad instruction `%.50s...'"), start);
|
else
|
else
|
/* xgettext:c-format */
|
/* xgettext:c-format */
|
sprintf (errbuf, _("bad instruction `%.50s'"), start);
|
sprintf (errbuf, _("bad instruction `%.50s'"), start);
|
#endif
|
#endif
|
|
|
*errmsg = errbuf;
|
*errmsg = errbuf;
|
return NULL;
|
return NULL;
|
}
|
}
|
}
|
}
|
|
|
