/* Assembler interface for targets using CGEN. -*- C -*-
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/* Assembler interface for targets using CGEN. -*- C -*-
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CGEN: Cpu tools GENerator
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CGEN: Cpu tools GENerator
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THIS FILE IS MACHINE GENERATED WITH CGEN.
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THIS FILE IS MACHINE GENERATED WITH CGEN.
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- the resultant file is machine generated, cgen-asm.in isn't
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- the resultant file is machine generated, cgen-asm.in isn't
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2007
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of libopcodes.
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This file is part of libopcodes.
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This library is free software; you can redistribute it and/or modify
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation, Inc.,
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along with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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/* ??? Eventually more and more of this stuff can go to cpu-independent files.
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/* ??? Eventually more and more of this stuff can go to cpu-independent files.
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Keep that in mind. */
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Keep that in mind. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include <stdio.h>
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#include <stdio.h>
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#include "ansidecl.h"
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#include "ansidecl.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "symcat.h"
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#include "symcat.h"
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#include "ip2k-desc.h"
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#include "ip2k-desc.h"
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#include "ip2k-opc.h"
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#include "ip2k-opc.h"
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#include "opintl.h"
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#include "opintl.h"
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#include "xregex.h"
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#include "xregex.h"
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#include "libiberty.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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#include "safe-ctype.h"
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#undef min
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#undef min
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#undef max
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#undef max
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#define max(a,b) ((a) > (b) ? (a) : (b))
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#define max(a,b) ((a) > (b) ? (a) : (b))
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static const char * parse_insn_normal
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static const char * parse_insn_normal
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(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
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(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
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/* -- assembler routines inserted here. */
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/* -- assembler routines inserted here. */
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/* -- asm.c */
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/* -- asm.c */
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static const char *
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static const char *
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parse_fr (CGEN_CPU_DESC cd,
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parse_fr (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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unsigned long *valuep)
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unsigned long *valuep)
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{
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{
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const char *errmsg;
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const char *errmsg;
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const char *old_strp;
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const char *old_strp;
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char *afteroffset;
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char *afteroffset;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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bfd_vma value;
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extern CGEN_KEYWORD ip2k_cgen_opval_register_names;
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extern CGEN_KEYWORD ip2k_cgen_opval_register_names;
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bfd_vma tempvalue;
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bfd_vma tempvalue;
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old_strp = *strp;
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old_strp = *strp;
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afteroffset = NULL;
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afteroffset = NULL;
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/* Check here to see if you're about to try parsing a w as the first arg
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/* Check here to see if you're about to try parsing a w as the first arg
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and return an error if you are. */
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and return an error if you are. */
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if ((strncmp (*strp, "w", 1) == 0) || (strncmp (*strp, "W", 1) == 0))
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if ((strncmp (*strp, "w", 1) == 0) || (strncmp (*strp, "W", 1) == 0))
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{
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{
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(*strp)++;
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(*strp)++;
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if ((strncmp (*strp, ",", 1) == 0) || ISSPACE (**strp))
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if ((strncmp (*strp, ",", 1) == 0) || ISSPACE (**strp))
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{
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{
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/* We've been passed a w. Return with an error message so that
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/* We've been passed a w. Return with an error message so that
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cgen will try the next parsing option. */
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cgen will try the next parsing option. */
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errmsg = _("W keyword invalid in FR operand slot.");
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errmsg = _("W keyword invalid in FR operand slot.");
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return errmsg;
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return errmsg;
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}
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}
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*strp = old_strp;
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*strp = old_strp;
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}
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}
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/* Attempt parse as register keyword. */
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/* Attempt parse as register keyword. */
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errmsg = cgen_parse_keyword (cd, strp, & ip2k_cgen_opval_register_names,
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errmsg = cgen_parse_keyword (cd, strp, & ip2k_cgen_opval_register_names,
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(long *) valuep);
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(long *) valuep);
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if (*strp != NULL
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if (*strp != NULL
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&& errmsg == NULL)
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&& errmsg == NULL)
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return errmsg;
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return errmsg;
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/* Attempt to parse for "(IP)". */
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/* Attempt to parse for "(IP)". */
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afteroffset = strstr (*strp, "(IP)");
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afteroffset = strstr (*strp, "(IP)");
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if (afteroffset == NULL)
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if (afteroffset == NULL)
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/* Make sure it's not in lower case. */
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/* Make sure it's not in lower case. */
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afteroffset = strstr (*strp, "(ip)");
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afteroffset = strstr (*strp, "(ip)");
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if (afteroffset != NULL)
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if (afteroffset != NULL)
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{
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{
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if (afteroffset != *strp)
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if (afteroffset != *strp)
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{
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{
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/* Invalid offset present. */
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/* Invalid offset present. */
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errmsg = _("offset(IP) is not a valid form");
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errmsg = _("offset(IP) is not a valid form");
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return errmsg;
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return errmsg;
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}
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}
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else
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else
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{
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{
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*strp += 4;
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*strp += 4;
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*valuep = 0;
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*valuep = 0;
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errmsg = NULL;
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errmsg = NULL;
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return errmsg;
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return errmsg;
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}
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}
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}
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}
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/* Attempt to parse for DP. ex: mov w, offset(DP)
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/* Attempt to parse for DP. ex: mov w, offset(DP)
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mov offset(DP),w */
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mov offset(DP),w */
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/* Try parsing it as an address and see what comes back. */
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/* Try parsing it as an address and see what comes back. */
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afteroffset = strstr (*strp, "(DP)");
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afteroffset = strstr (*strp, "(DP)");
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if (afteroffset == NULL)
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if (afteroffset == NULL)
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/* Maybe it's in lower case. */
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/* Maybe it's in lower case. */
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afteroffset = strstr (*strp, "(dp)");
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afteroffset = strstr (*strp, "(dp)");
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if (afteroffset != NULL)
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if (afteroffset != NULL)
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{
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{
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if (afteroffset == *strp)
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if (afteroffset == *strp)
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{
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{
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/* No offset present. Use 0 by default. */
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/* No offset present. Use 0 by default. */
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tempvalue = 0;
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tempvalue = 0;
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errmsg = NULL;
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errmsg = NULL;
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}
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}
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else
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else
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errmsg = cgen_parse_address (cd, strp, opindex,
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_IP2K_FR_OFFSET,
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BFD_RELOC_IP2K_FR_OFFSET,
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& result_type, & tempvalue);
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& result_type, & tempvalue);
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if (errmsg == NULL)
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if (errmsg == NULL)
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{
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{
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if (tempvalue <= 127)
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if (tempvalue <= 127)
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{
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{
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/* Value is ok. Fix up the first 2 bits and return. */
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/* Value is ok. Fix up the first 2 bits and return. */
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*valuep = 0x0100 | tempvalue;
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*valuep = 0x0100 | tempvalue;
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*strp += 4; /* Skip over the (DP) in *strp. */
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*strp += 4; /* Skip over the (DP) in *strp. */
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return errmsg;
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return errmsg;
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}
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}
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else
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else
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{
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{
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/* Found something there in front of (DP) but it's out
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/* Found something there in front of (DP) but it's out
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of range. */
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of range. */
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errmsg = _("(DP) offset out of range.");
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errmsg = _("(DP) offset out of range.");
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return errmsg;
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return errmsg;
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}
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}
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}
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}
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}
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}
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/* Attempt to parse for SP. ex: mov w, offset(SP)
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/* Attempt to parse for SP. ex: mov w, offset(SP)
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mov offset(SP), w. */
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mov offset(SP), w. */
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afteroffset = strstr (*strp, "(SP)");
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afteroffset = strstr (*strp, "(SP)");
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if (afteroffset == NULL)
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if (afteroffset == NULL)
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/* Maybe it's in lower case. */
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/* Maybe it's in lower case. */
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afteroffset = strstr (*strp, "(sp)");
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afteroffset = strstr (*strp, "(sp)");
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if (afteroffset != NULL)
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if (afteroffset != NULL)
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{
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{
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if (afteroffset == *strp)
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if (afteroffset == *strp)
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{
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{
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/* No offset present. Use 0 by default. */
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/* No offset present. Use 0 by default. */
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tempvalue = 0;
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tempvalue = 0;
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errmsg = NULL;
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errmsg = NULL;
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}
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}
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else
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else
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errmsg = cgen_parse_address (cd, strp, opindex,
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errmsg = cgen_parse_address (cd, strp, opindex,
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BFD_RELOC_IP2K_FR_OFFSET,
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BFD_RELOC_IP2K_FR_OFFSET,
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& result_type, & tempvalue);
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& result_type, & tempvalue);
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if (errmsg == NULL)
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if (errmsg == NULL)
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{
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{
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if (tempvalue <= 127)
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if (tempvalue <= 127)
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{
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{
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/* Value is ok. Fix up the first 2 bits and return. */
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/* Value is ok. Fix up the first 2 bits and return. */
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*valuep = 0x0180 | tempvalue;
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*valuep = 0x0180 | tempvalue;
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*strp += 4; /* Skip over the (SP) in *strp. */
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*strp += 4; /* Skip over the (SP) in *strp. */
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return errmsg;
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return errmsg;
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}
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}
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else
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else
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{
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{
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/* Found something there in front of (SP) but it's out
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/* Found something there in front of (SP) but it's out
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of range. */
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of range. */
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errmsg = _("(SP) offset out of range.");
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errmsg = _("(SP) offset out of range.");
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return errmsg;
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return errmsg;
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}
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}
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}
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}
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}
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}
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/* Attempt to parse as an address. */
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/* Attempt to parse as an address. */
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*strp = old_strp;
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*strp = old_strp;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IP2K_FR9,
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_IP2K_FR9,
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& result_type, & value);
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& result_type, & value);
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if (errmsg == NULL)
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if (errmsg == NULL)
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{
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{
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*valuep = value;
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*valuep = value;
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/* If a parenthesis is found, warn about invalid form. */
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/* If a parenthesis is found, warn about invalid form. */
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if (**strp == '(')
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if (**strp == '(')
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errmsg = _("illegal use of parentheses");
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errmsg = _("illegal use of parentheses");
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/* If a numeric value is specified, ensure that it is between
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/* If a numeric value is specified, ensure that it is between
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1 and 255. */
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1 and 255. */
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else if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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else if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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{
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{
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if (value < 0x1 || value > 0xff)
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if (value < 0x1 || value > 0xff)
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errmsg = _("operand out of range (not between 1 and 255)");
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errmsg = _("operand out of range (not between 1 and 255)");
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}
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}
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}
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}
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return errmsg;
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return errmsg;
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}
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}
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static const char *
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static const char *
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parse_addr16 (CGEN_CPU_DESC cd,
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parse_addr16 (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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unsigned long *valuep)
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unsigned long *valuep)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_reloc_code_real_type code = BFD_RELOC_NONE;
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bfd_reloc_code_real_type code = BFD_RELOC_NONE;
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bfd_vma value;
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bfd_vma value;
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if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16H)
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if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16H)
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code = BFD_RELOC_IP2K_HI8DATA;
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code = BFD_RELOC_IP2K_HI8DATA;
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else if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16L)
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else if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16L)
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code = BFD_RELOC_IP2K_LO8DATA;
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code = BFD_RELOC_IP2K_LO8DATA;
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else
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else
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{
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{
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/* Something is very wrong. opindex has to be one of the above. */
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/* Something is very wrong. opindex has to be one of the above. */
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errmsg = _("parse_addr16: invalid opindex.");
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errmsg = _("parse_addr16: invalid opindex.");
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return errmsg;
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return errmsg;
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}
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}
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errmsg = cgen_parse_address (cd, strp, opindex, code,
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errmsg = cgen_parse_address (cd, strp, opindex, code,
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& result_type, & value);
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& result_type, & value);
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if (errmsg == NULL)
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if (errmsg == NULL)
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{
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{
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/* We either have a relocation or a number now. */
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/* We either have a relocation or a number now. */
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if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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{
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{
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/* We got a number back. */
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/* We got a number back. */
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if (code == BFD_RELOC_IP2K_HI8DATA)
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if (code == BFD_RELOC_IP2K_HI8DATA)
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value >>= 8;
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value >>= 8;
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else
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else
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/* code = BFD_RELOC_IP2K_LOW8DATA. */
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/* code = BFD_RELOC_IP2K_LOW8DATA. */
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value &= 0x00FF;
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value &= 0x00FF;
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}
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}
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*valuep = value;
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*valuep = value;
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}
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}
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return errmsg;
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return errmsg;
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}
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}
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static const char *
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static const char *
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parse_addr16_cjp (CGEN_CPU_DESC cd,
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parse_addr16_cjp (CGEN_CPU_DESC cd,
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const char **strp,
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const char **strp,
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int opindex,
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int opindex,
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unsigned long *valuep)
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unsigned long *valuep)
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{
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{
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const char *errmsg;
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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enum cgen_parse_operand_result result_type;
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bfd_reloc_code_real_type code = BFD_RELOC_NONE;
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bfd_reloc_code_real_type code = BFD_RELOC_NONE;
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bfd_vma value;
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bfd_vma value;
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if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16CJP)
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if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16CJP)
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code = BFD_RELOC_IP2K_ADDR16CJP;
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code = BFD_RELOC_IP2K_ADDR16CJP;
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else if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16P)
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else if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16P)
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code = BFD_RELOC_IP2K_PAGE3;
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code = BFD_RELOC_IP2K_PAGE3;
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|
|
errmsg = cgen_parse_address (cd, strp, opindex, code,
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errmsg = cgen_parse_address (cd, strp, opindex, code,
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& result_type, & value);
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& result_type, & value);
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if (errmsg == NULL)
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if (errmsg == NULL)
|
{
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{
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if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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if (result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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{
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{
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if ((value & 0x1) == 0) /* If the address is even .... */
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if ((value & 0x1) == 0) /* If the address is even .... */
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{
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{
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if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16CJP)
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if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16CJP)
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*valuep = (value >> 1) & 0x1FFF; /* Should mask be 1FFF? */
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*valuep = (value >> 1) & 0x1FFF; /* Should mask be 1FFF? */
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else if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16P)
|
else if (opindex == (CGEN_OPERAND_TYPE) IP2K_OPERAND_ADDR16P)
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*valuep = (value >> 14) & 0x7;
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*valuep = (value >> 14) & 0x7;
|
}
|
}
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else
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else
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errmsg = _("Byte address required. - must be even.");
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errmsg = _("Byte address required. - must be even.");
|
}
|
}
|
else if (result_type == CGEN_PARSE_OPERAND_RESULT_QUEUED)
|
else if (result_type == CGEN_PARSE_OPERAND_RESULT_QUEUED)
|
{
|
{
|
/* This will happen for things like (s2-s1) where s2 and s1
|
/* This will happen for things like (s2-s1) where s2 and s1
|
are labels. */
|
are labels. */
|
*valuep = value;
|
*valuep = value;
|
}
|
}
|
else
|
else
|
errmsg = _("cgen_parse_address returned a symbol. Literal required.");
|
errmsg = _("cgen_parse_address returned a symbol. Literal required.");
|
}
|
}
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
static const char *
|
static const char *
|
parse_lit8 (CGEN_CPU_DESC cd,
|
parse_lit8 (CGEN_CPU_DESC cd,
|
const char **strp,
|
const char **strp,
|
int opindex,
|
int opindex,
|
long *valuep)
|
long *valuep)
|
{
|
{
|
const char *errmsg;
|
const char *errmsg;
|
enum cgen_parse_operand_result result_type;
|
enum cgen_parse_operand_result result_type;
|
bfd_reloc_code_real_type code = BFD_RELOC_NONE;
|
bfd_reloc_code_real_type code = BFD_RELOC_NONE;
|
bfd_vma value;
|
bfd_vma value;
|
|
|
/* Parse %OP relocating operators. */
|
/* Parse %OP relocating operators. */
|
if (strncmp (*strp, "%bank", 5) == 0)
|
if (strncmp (*strp, "%bank", 5) == 0)
|
{
|
{
|
*strp += 5;
|
*strp += 5;
|
code = BFD_RELOC_IP2K_BANK;
|
code = BFD_RELOC_IP2K_BANK;
|
}
|
}
|
else if (strncmp (*strp, "%lo8data", 8) == 0)
|
else if (strncmp (*strp, "%lo8data", 8) == 0)
|
{
|
{
|
*strp += 8;
|
*strp += 8;
|
code = BFD_RELOC_IP2K_LO8DATA;
|
code = BFD_RELOC_IP2K_LO8DATA;
|
}
|
}
|
else if (strncmp (*strp, "%hi8data", 8) == 0)
|
else if (strncmp (*strp, "%hi8data", 8) == 0)
|
{
|
{
|
*strp += 8;
|
*strp += 8;
|
code = BFD_RELOC_IP2K_HI8DATA;
|
code = BFD_RELOC_IP2K_HI8DATA;
|
}
|
}
|
else if (strncmp (*strp, "%ex8data", 8) == 0)
|
else if (strncmp (*strp, "%ex8data", 8) == 0)
|
{
|
{
|
*strp += 8;
|
*strp += 8;
|
code = BFD_RELOC_IP2K_EX8DATA;
|
code = BFD_RELOC_IP2K_EX8DATA;
|
}
|
}
|
else if (strncmp (*strp, "%lo8insn", 8) == 0)
|
else if (strncmp (*strp, "%lo8insn", 8) == 0)
|
{
|
{
|
*strp += 8;
|
*strp += 8;
|
code = BFD_RELOC_IP2K_LO8INSN;
|
code = BFD_RELOC_IP2K_LO8INSN;
|
}
|
}
|
else if (strncmp (*strp, "%hi8insn", 8) == 0)
|
else if (strncmp (*strp, "%hi8insn", 8) == 0)
|
{
|
{
|
*strp += 8;
|
*strp += 8;
|
code = BFD_RELOC_IP2K_HI8INSN;
|
code = BFD_RELOC_IP2K_HI8INSN;
|
}
|
}
|
|
|
/* Parse %op operand. */
|
/* Parse %op operand. */
|
if (code != BFD_RELOC_NONE)
|
if (code != BFD_RELOC_NONE)
|
{
|
{
|
errmsg = cgen_parse_address (cd, strp, opindex, code,
|
errmsg = cgen_parse_address (cd, strp, opindex, code,
|
& result_type, & value);
|
& result_type, & value);
|
if ((errmsg == NULL) &&
|
if ((errmsg == NULL) &&
|
(result_type != CGEN_PARSE_OPERAND_RESULT_QUEUED))
|
(result_type != CGEN_PARSE_OPERAND_RESULT_QUEUED))
|
errmsg = _("percent-operator operand is not a symbol");
|
errmsg = _("percent-operator operand is not a symbol");
|
|
|
*valuep = value;
|
*valuep = value;
|
}
|
}
|
/* Parse as a number. */
|
/* Parse as a number. */
|
else
|
else
|
{
|
{
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, valuep);
|
errmsg = cgen_parse_signed_integer (cd, strp, opindex, valuep);
|
|
|
/* Truncate to eight bits to accept both signed and unsigned input. */
|
/* Truncate to eight bits to accept both signed and unsigned input. */
|
if (errmsg == NULL)
|
if (errmsg == NULL)
|
*valuep &= 0xFF;
|
*valuep &= 0xFF;
|
}
|
}
|
|
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
static const char *
|
static const char *
|
parse_bit3 (CGEN_CPU_DESC cd,
|
parse_bit3 (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;
|
char mode = 0;
|
char mode = 0;
|
long count = 0;
|
long count = 0;
|
unsigned long value;
|
unsigned long value;
|
|
|
if (strncmp (*strp, "%bit", 4) == 0)
|
if (strncmp (*strp, "%bit", 4) == 0)
|
{
|
{
|
*strp += 4;
|
*strp += 4;
|
mode = 1;
|
mode = 1;
|
}
|
}
|
else if (strncmp (*strp, "%msbbit", 7) == 0)
|
else if (strncmp (*strp, "%msbbit", 7) == 0)
|
{
|
{
|
*strp += 7;
|
*strp += 7;
|
mode = 1;
|
mode = 1;
|
}
|
}
|
else if (strncmp (*strp, "%lsbbit", 7) == 0)
|
else if (strncmp (*strp, "%lsbbit", 7) == 0)
|
{
|
{
|
*strp += 7;
|
*strp += 7;
|
mode = 2;
|
mode = 2;
|
}
|
}
|
|
|
errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
|
errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
|
if (errmsg)
|
if (errmsg)
|
return errmsg;
|
return errmsg;
|
|
|
if (mode)
|
if (mode)
|
{
|
{
|
value = * valuep;
|
value = * valuep;
|
if (value == 0)
|
if (value == 0)
|
{
|
{
|
errmsg = _("Attempt to find bit index of 0");
|
errmsg = _("Attempt to find bit index of 0");
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
if (mode == 1)
|
if (mode == 1)
|
{
|
{
|
count = 31;
|
count = 31;
|
while ((value & 0x80000000) == 0)
|
while ((value & 0x80000000) == 0)
|
{
|
{
|
count--;
|
count--;
|
value <<= 1;
|
value <<= 1;
|
}
|
}
|
}
|
}
|
else if (mode == 2)
|
else if (mode == 2)
|
{
|
{
|
count = 0;
|
count = 0;
|
while ((value & 0x00000001) == 0)
|
while ((value & 0x00000001) == 0)
|
{
|
{
|
count++;
|
count++;
|
value >>= 1;
|
value >>= 1;
|
}
|
}
|
}
|
}
|
|
|
*valuep = count;
|
*valuep = count;
|
}
|
}
|
|
|
return errmsg;
|
return errmsg;
|
}
|
}
|
|
|
/* -- dis.c */
|
/* -- dis.c */
|
|
|
const char * ip2k_cgen_parse_operand
|
const char * ip2k_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 *
|
ip2k_cgen_parse_operand (CGEN_CPU_DESC cd,
|
ip2k_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 IP2K_OPERAND_ADDR16CJP :
|
case IP2K_OPERAND_ADDR16CJP :
|
errmsg = parse_addr16_cjp (cd, strp, IP2K_OPERAND_ADDR16CJP, (unsigned long *) (& fields->f_addr16cjp));
|
errmsg = parse_addr16_cjp (cd, strp, IP2K_OPERAND_ADDR16CJP, (unsigned long *) (& fields->f_addr16cjp));
|
break;
|
break;
|
case IP2K_OPERAND_ADDR16H :
|
case IP2K_OPERAND_ADDR16H :
|
errmsg = parse_addr16 (cd, strp, IP2K_OPERAND_ADDR16H, (unsigned long *) (& fields->f_imm8));
|
errmsg = parse_addr16 (cd, strp, IP2K_OPERAND_ADDR16H, (unsigned long *) (& fields->f_imm8));
|
break;
|
break;
|
case IP2K_OPERAND_ADDR16L :
|
case IP2K_OPERAND_ADDR16L :
|
errmsg = parse_addr16 (cd, strp, IP2K_OPERAND_ADDR16L, (unsigned long *) (& fields->f_imm8));
|
errmsg = parse_addr16 (cd, strp, IP2K_OPERAND_ADDR16L, (unsigned long *) (& fields->f_imm8));
|
break;
|
break;
|
case IP2K_OPERAND_ADDR16P :
|
case IP2K_OPERAND_ADDR16P :
|
errmsg = parse_addr16_cjp (cd, strp, IP2K_OPERAND_ADDR16P, (unsigned long *) (& fields->f_page3));
|
errmsg = parse_addr16_cjp (cd, strp, IP2K_OPERAND_ADDR16P, (unsigned long *) (& fields->f_page3));
|
break;
|
break;
|
case IP2K_OPERAND_BITNO :
|
case IP2K_OPERAND_BITNO :
|
errmsg = parse_bit3 (cd, strp, IP2K_OPERAND_BITNO, (unsigned long *) (& fields->f_bitno));
|
errmsg = parse_bit3 (cd, strp, IP2K_OPERAND_BITNO, (unsigned long *) (& fields->f_bitno));
|
break;
|
break;
|
case IP2K_OPERAND_CBIT :
|
case IP2K_OPERAND_CBIT :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_CBIT, (unsigned long *) (& junk));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_CBIT, (unsigned long *) (& junk));
|
break;
|
break;
|
case IP2K_OPERAND_DCBIT :
|
case IP2K_OPERAND_DCBIT :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_DCBIT, (unsigned long *) (& junk));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_DCBIT, (unsigned long *) (& junk));
|
break;
|
break;
|
case IP2K_OPERAND_FR :
|
case IP2K_OPERAND_FR :
|
errmsg = parse_fr (cd, strp, IP2K_OPERAND_FR, (unsigned long *) (& fields->f_reg));
|
errmsg = parse_fr (cd, strp, IP2K_OPERAND_FR, (unsigned long *) (& fields->f_reg));
|
break;
|
break;
|
case IP2K_OPERAND_LIT8 :
|
case IP2K_OPERAND_LIT8 :
|
errmsg = parse_lit8 (cd, strp, IP2K_OPERAND_LIT8, (long *) (& fields->f_imm8));
|
errmsg = parse_lit8 (cd, strp, IP2K_OPERAND_LIT8, (long *) (& fields->f_imm8));
|
break;
|
break;
|
case IP2K_OPERAND_PABITS :
|
case IP2K_OPERAND_PABITS :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_PABITS, (unsigned long *) (& junk));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_PABITS, (unsigned long *) (& junk));
|
break;
|
break;
|
case IP2K_OPERAND_RETI3 :
|
case IP2K_OPERAND_RETI3 :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_RETI3, (unsigned long *) (& fields->f_reti3));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_RETI3, (unsigned long *) (& fields->f_reti3));
|
break;
|
break;
|
case IP2K_OPERAND_ZBIT :
|
case IP2K_OPERAND_ZBIT :
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_ZBIT, (unsigned long *) (& junk));
|
errmsg = cgen_parse_unsigned_integer (cd, strp, IP2K_OPERAND_ZBIT, (unsigned long *) (& junk));
|
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 ip2k_cgen_parse_handlers[] =
|
cgen_parse_fn * const ip2k_cgen_parse_handlers[] =
|
{
|
{
|
parse_insn_normal,
|
parse_insn_normal,
|
};
|
};
|
|
|
void
|
void
|
ip2k_cgen_init_asm (CGEN_CPU_DESC cd)
|
ip2k_cgen_init_asm (CGEN_CPU_DESC cd)
|
{
|
{
|
ip2k_cgen_init_opcode_table (cd);
|
ip2k_cgen_init_opcode_table (cd);
|
ip2k_cgen_init_ibld_table (cd);
|
ip2k_cgen_init_ibld_table (cd);
|
cd->parse_handlers = & ip2k_cgen_parse_handlers[0];
|
cd->parse_handlers = & ip2k_cgen_parse_handlers[0];
|
cd->parse_operand = ip2k_cgen_parse_operand;
|
cd->parse_operand = ip2k_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 ip2k_cgen_assemble_insn
|
later use by ip2k_cgen_assemble_insn
|
|
|
Returns NULL for success, an error message for failure. */
|
Returns NULL for success, an error message for failure. */
|
|
|
char *
|
char *
|
ip2k_cgen_build_insn_regex (CGEN_INSN *insn)
|
ip2k_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 *
|
ip2k_cgen_assemble_insn (CGEN_CPU_DESC cd,
|
ip2k_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 (! ip2k_cgen_insn_supported (cd, insn))
|
if (! ip2k_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;
|
}
|
}
|
}
|
}
|
|
|
