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1102 lines
32 KiB
C
1102 lines
32 KiB
C
/* Assembler interface for targets using CGEN. -*- C -*-
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CGEN: Cpu tools GENerator
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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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Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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This file is part of the GNU Binutils and GDB, the GNU debugger.
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This program 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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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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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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#include "sysdep.h"
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#include <stdio.h>
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#include "ansidecl.h"
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#include "bfd.h"
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#include "symcat.h"
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#include "frv-desc.h"
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#include "frv-opc.h"
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#include "opintl.h"
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#include "xregex.h"
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#include "libiberty.h"
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#include "safe-ctype.h"
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#undef min
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#undef max
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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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(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
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/* -- assembler routines inserted here. */
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/* -- asm.c */
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static const char * parse_ulo16
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PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
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static const char * parse_uslo16
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PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
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static const char * parse_uhi16
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PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
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static long parse_register_number
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PARAMS ((const char **));
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static const char * parse_spr
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PARAMS ((CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *));
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static const char * parse_d12
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PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
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static const char * parse_s12
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PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
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static const char * parse_u12
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PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
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static const char * parse_even_register
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PARAMS ((CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *));
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static const char * parse_A0
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PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
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static const char * parse_A1
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PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
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static const char * parse_A
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PARAMS ((CGEN_CPU_DESC, const char **, int, long *, long));
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static const char *
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parse_ulo16 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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unsigned long *valuep;
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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if (**strp == '#' || **strp == '%')
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{
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if (strncasecmp (*strp + 1, "lo(", 3) == 0)
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{
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*strp += 4;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_LO16,
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&result_type, &value);
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if (**strp != ')')
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return "missing `)'";
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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if (strncasecmp (*strp + 1, "gprello(", 8) == 0)
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{
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELLO,
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&result_type, &value);
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if (**strp != ')')
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return "missing ')'";
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value >>= 16;
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*valuep = value;
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return errmsg;
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}
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}
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return cgen_parse_signed_integer (cd, strp, opindex, valuep);
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}
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static const char *
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parse_uslo16 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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unsigned long *valuep;
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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if (**strp == '#' || **strp == '%')
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{
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if (strncasecmp (*strp + 1, "lo(", 3) == 0)
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{
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*strp += 4;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_LO16,
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&result_type, &value);
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if (**strp != ')')
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return "missing `)'";
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp + 1, "gprello(", 8) == 0)
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{
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELLO,
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&result_type, &value);
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if (**strp != ')')
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return "missing ')'";
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value &= 0xffff;
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*valuep = value;
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return errmsg;
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}
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}
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return cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
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}
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static const char *
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parse_uhi16 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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unsigned long *valuep;
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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if (**strp == '#' || **strp == '%')
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{
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if (strncasecmp (*strp + 1, "hi(", 3) == 0)
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{
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*strp += 4;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_HI16,
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&result_type, &value);
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if (**strp != ')')
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return "missing `)'";
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value >>= 16;
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*valuep = value;
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return errmsg;
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}
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else if (strncasecmp (*strp + 1, "gprelhi(", 8) == 0)
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{
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELHI,
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&result_type, &value);
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if (**strp != ')')
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return "missing ')'";
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++*strp;
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if (errmsg == NULL
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&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
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value >>= 16;
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*valuep = value;
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return errmsg;
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}
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}
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return cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
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}
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static long
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parse_register_number (strp)
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const char **strp;
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{
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int regno;
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if (**strp < '0' || **strp > '9')
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return -1; /* error */
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regno = **strp - '0';
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for (++*strp; **strp >= '0' && **strp <= '9'; ++*strp)
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regno = regno * 10 + (**strp - '0');
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return regno;
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}
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static const char *
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parse_spr (cd, strp, table, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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CGEN_KEYWORD * table;
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long *valuep;
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{
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const char *save_strp;
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long regno;
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/* Check for spr index notation. */
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if (strncasecmp (*strp, "spr[", 4) == 0)
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{
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*strp += 4;
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regno = parse_register_number (strp);
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if (**strp != ']')
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return "missing `]'";
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++*strp;
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if (! spr_valid (regno))
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return "Special purpose register number is out of range";
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*valuep = regno;
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return NULL;
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}
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save_strp = *strp;
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regno = parse_register_number (strp);
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if (regno != -1)
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{
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if (! spr_valid (regno))
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return "Special purpose register number is out of range";
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*valuep = regno;
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return NULL;
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}
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*strp = save_strp;
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return cgen_parse_keyword (cd, strp, table, valuep);
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}
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static const char *
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parse_d12 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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long *valuep;
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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/* Check for small data reference. */
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if (**strp == '#' || **strp == '%')
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{
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if (strncasecmp (*strp + 1, "gprel12(", 8) == 0)
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{
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPREL12,
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&result_type, &value);
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if (**strp != ')')
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return "missing `)'";
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++*strp;
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*valuep = value;
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return errmsg;
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}
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}
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return cgen_parse_signed_integer (cd, strp, opindex, valuep);
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}
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static const char *
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parse_s12 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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long *valuep;
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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/* Check for small data reference. */
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if ((**strp == '#' || **strp == '%')
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&& strncasecmp (*strp + 1, "gprel12(", 8) == 0)
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{
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPREL12,
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&result_type, &value);
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if (**strp != ')')
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return "missing `)'";
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++*strp;
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*valuep = value;
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return errmsg;
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}
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else
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{
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if (**strp == '#')
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++*strp;
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return cgen_parse_signed_integer (cd, strp, opindex, valuep);
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}
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}
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static const char *
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parse_u12 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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long *valuep;
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{
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const char *errmsg;
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enum cgen_parse_operand_result result_type;
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bfd_vma value;
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/* Check for small data reference. */
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if ((**strp == '#' || **strp == '%')
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&& strncasecmp (*strp + 1, "gprel12(", 8) == 0)
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{
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*strp += 9;
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errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELU12,
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&result_type, &value);
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if (**strp != ')')
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return "missing `)'";
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++*strp;
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*valuep = value;
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return errmsg;
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}
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else
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{
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if (**strp == '#')
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++*strp;
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return cgen_parse_signed_integer (cd, strp, opindex, valuep);
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}
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}
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static const char *
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parse_A (cd, strp, opindex, valuep, A)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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long *valuep;
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long A;
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{
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const char *errmsg;
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if (**strp == '#')
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++*strp;
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errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
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if (errmsg)
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return errmsg;
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if (*valuep != A)
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return "Value of A operand must be 0 or 1";
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return NULL;
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}
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static const char *
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parse_A0 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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long *valuep;
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{
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return parse_A (cd, strp, opindex, valuep, 0);
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}
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static const char *
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parse_A1 (cd, strp, opindex, valuep)
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CGEN_CPU_DESC cd;
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const char **strp;
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int opindex;
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long *valuep;
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{
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return parse_A (cd, strp, opindex, valuep, 1);
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}
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static const char *
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parse_even_register (cd, strP, tableP, valueP)
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CGEN_CPU_DESC cd;
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const char ** strP;
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CGEN_KEYWORD * tableP;
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long * valueP;
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{
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const char * errmsg;
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const char * saved_star_strP = * strP;
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errmsg = cgen_parse_keyword (cd, strP, tableP, valueP);
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if (errmsg == NULL && ((* valueP) & 1))
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{
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errmsg = _("register number must be even");
|
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* strP = saved_star_strP;
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}
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return errmsg;
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}
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/* -- */
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const char * frv_cgen_parse_operand
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PARAMS ((CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *));
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/* Main entry point for operand parsing.
|
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|
||
This function is basically just a big switch statement. Earlier versions
|
||
used tables to look up the function to use, but
|
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- if the table contains both assembler and disassembler functions then
|
||
the disassembler contains much of the assembler and vice-versa,
|
||
- there's a lot of inlining possibilities as things grow,
|
||
- using a switch statement avoids the function call overhead.
|
||
|
||
This function could be moved into `parse_insn_normal', but keeping it
|
||
separate makes clear the interface between `parse_insn_normal' and each of
|
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the handlers. */
|
||
|
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const char *
|
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frv_cgen_parse_operand (cd, opindex, strp, fields)
|
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CGEN_CPU_DESC cd;
|
||
int opindex;
|
||
const char ** strp;
|
||
CGEN_FIELDS * fields;
|
||
{
|
||
const char * errmsg = NULL;
|
||
/* Used by scalar operands that still need to be parsed. */
|
||
long junk ATTRIBUTE_UNUSED;
|
||
|
||
switch (opindex)
|
||
{
|
||
case FRV_OPERAND_A0 :
|
||
errmsg = parse_A0 (cd, strp, FRV_OPERAND_A0, &fields->f_A);
|
||
break;
|
||
case FRV_OPERAND_A1 :
|
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errmsg = parse_A1 (cd, strp, FRV_OPERAND_A1, &fields->f_A);
|
||
break;
|
||
case FRV_OPERAND_ACC40SI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Si);
|
||
break;
|
||
case FRV_OPERAND_ACC40SK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Sk);
|
||
break;
|
||
case FRV_OPERAND_ACC40UI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Ui);
|
||
break;
|
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case FRV_OPERAND_ACC40UK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_acc_names, & fields->f_ACC40Uk);
|
||
break;
|
||
case FRV_OPERAND_ACCGI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_accg_names, & fields->f_ACCGi);
|
||
break;
|
||
case FRV_OPERAND_ACCGK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_accg_names, & fields->f_ACCGk);
|
||
break;
|
||
case FRV_OPERAND_CCI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CCi);
|
||
break;
|
||
case FRV_OPERAND_CPRDOUBLEK :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRk);
|
||
break;
|
||
case FRV_OPERAND_CPRI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRi);
|
||
break;
|
||
case FRV_OPERAND_CPRJ :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRj);
|
||
break;
|
||
case FRV_OPERAND_CPRK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cpr_names, & fields->f_CPRk);
|
||
break;
|
||
case FRV_OPERAND_CRI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRi);
|
||
break;
|
||
case FRV_OPERAND_CRJ :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRj);
|
||
break;
|
||
case FRV_OPERAND_CRJ_FLOAT :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRj_float);
|
||
break;
|
||
case FRV_OPERAND_CRJ_INT :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRj_int);
|
||
break;
|
||
case FRV_OPERAND_CRK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_cccr_names, & fields->f_CRk);
|
||
break;
|
||
case FRV_OPERAND_FCCI_1 :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCi_1);
|
||
break;
|
||
case FRV_OPERAND_FCCI_2 :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCi_2);
|
||
break;
|
||
case FRV_OPERAND_FCCI_3 :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCi_3);
|
||
break;
|
||
case FRV_OPERAND_FCCK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fccr_names, & fields->f_FCCk);
|
||
break;
|
||
case FRV_OPERAND_FRDOUBLEI :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi);
|
||
break;
|
||
case FRV_OPERAND_FRDOUBLEJ :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj);
|
||
break;
|
||
case FRV_OPERAND_FRDOUBLEK :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk);
|
||
break;
|
||
case FRV_OPERAND_FRI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi);
|
||
break;
|
||
case FRV_OPERAND_FRINTI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi);
|
||
break;
|
||
case FRV_OPERAND_FRINTIEVEN :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRi);
|
||
break;
|
||
case FRV_OPERAND_FRINTJ :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj);
|
||
break;
|
||
case FRV_OPERAND_FRINTJEVEN :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj);
|
||
break;
|
||
case FRV_OPERAND_FRINTK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk);
|
||
break;
|
||
case FRV_OPERAND_FRINTKEVEN :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk);
|
||
break;
|
||
case FRV_OPERAND_FRJ :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRj);
|
||
break;
|
||
case FRV_OPERAND_FRK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk);
|
||
break;
|
||
case FRV_OPERAND_FRKHI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk);
|
||
break;
|
||
case FRV_OPERAND_FRKLO :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_fr_names, & fields->f_FRk);
|
||
break;
|
||
case FRV_OPERAND_GRDOUBLEK :
|
||
errmsg = parse_even_register (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk);
|
||
break;
|
||
case FRV_OPERAND_GRI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRi);
|
||
break;
|
||
case FRV_OPERAND_GRJ :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRj);
|
||
break;
|
||
case FRV_OPERAND_GRK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk);
|
||
break;
|
||
case FRV_OPERAND_GRKHI :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk);
|
||
break;
|
||
case FRV_OPERAND_GRKLO :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_gr_names, & fields->f_GRk);
|
||
break;
|
||
case FRV_OPERAND_ICCI_1 :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_iccr_names, & fields->f_ICCi_1);
|
||
break;
|
||
case FRV_OPERAND_ICCI_2 :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_iccr_names, & fields->f_ICCi_2);
|
||
break;
|
||
case FRV_OPERAND_ICCI_3 :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_iccr_names, & fields->f_ICCi_3);
|
||
break;
|
||
case FRV_OPERAND_LI :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_LI, &fields->f_LI);
|
||
break;
|
||
case FRV_OPERAND_AE :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_AE, &fields->f_ae);
|
||
break;
|
||
case FRV_OPERAND_CCOND :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_CCOND, &fields->f_ccond);
|
||
break;
|
||
case FRV_OPERAND_COND :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_COND, &fields->f_cond);
|
||
break;
|
||
case FRV_OPERAND_D12 :
|
||
errmsg = parse_d12 (cd, strp, FRV_OPERAND_D12, &fields->f_d12);
|
||
break;
|
||
case FRV_OPERAND_DEBUG :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_DEBUG, &fields->f_debug);
|
||
break;
|
||
case FRV_OPERAND_EIR :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_EIR, &fields->f_eir);
|
||
break;
|
||
case FRV_OPERAND_HINT :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_HINT, &fields->f_hint);
|
||
break;
|
||
case FRV_OPERAND_HINT_NOT_TAKEN :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_h_hint_not_taken, & fields->f_hint);
|
||
break;
|
||
case FRV_OPERAND_HINT_TAKEN :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_h_hint_taken, & fields->f_hint);
|
||
break;
|
||
case FRV_OPERAND_LABEL16 :
|
||
{
|
||
bfd_vma value;
|
||
errmsg = cgen_parse_address (cd, strp, FRV_OPERAND_LABEL16, 0, NULL, & value);
|
||
fields->f_label16 = value;
|
||
}
|
||
break;
|
||
case FRV_OPERAND_LABEL24 :
|
||
{
|
||
bfd_vma value;
|
||
errmsg = cgen_parse_address (cd, strp, FRV_OPERAND_LABEL24, 0, NULL, & value);
|
||
fields->f_label24 = value;
|
||
}
|
||
break;
|
||
case FRV_OPERAND_LOCK :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_LOCK, &fields->f_lock);
|
||
break;
|
||
case FRV_OPERAND_PACK :
|
||
errmsg = cgen_parse_keyword (cd, strp, & frv_cgen_opval_h_pack, & fields->f_pack);
|
||
break;
|
||
case FRV_OPERAND_S10 :
|
||
errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S10, &fields->f_s10);
|
||
break;
|
||
case FRV_OPERAND_S12 :
|
||
errmsg = parse_s12 (cd, strp, FRV_OPERAND_S12, &fields->f_d12);
|
||
break;
|
||
case FRV_OPERAND_S16 :
|
||
errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S16, &fields->f_s16);
|
||
break;
|
||
case FRV_OPERAND_S5 :
|
||
errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S5, &fields->f_s5);
|
||
break;
|
||
case FRV_OPERAND_S6 :
|
||
errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S6, &fields->f_s6);
|
||
break;
|
||
case FRV_OPERAND_S6_1 :
|
||
errmsg = cgen_parse_signed_integer (cd, strp, FRV_OPERAND_S6_1, &fields->f_s6_1);
|
||
break;
|
||
case FRV_OPERAND_SLO16 :
|
||
errmsg = parse_uslo16 (cd, strp, FRV_OPERAND_SLO16, &fields->f_s16);
|
||
break;
|
||
case FRV_OPERAND_SPR :
|
||
errmsg = parse_spr (cd, strp, & frv_cgen_opval_spr_names, & fields->f_spr);
|
||
break;
|
||
case FRV_OPERAND_U12 :
|
||
errmsg = parse_u12 (cd, strp, FRV_OPERAND_U12, &fields->f_u12);
|
||
break;
|
||
case FRV_OPERAND_U16 :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_U16, &fields->f_u16);
|
||
break;
|
||
case FRV_OPERAND_U6 :
|
||
errmsg = cgen_parse_unsigned_integer (cd, strp, FRV_OPERAND_U6, &fields->f_u6);
|
||
break;
|
||
case FRV_OPERAND_UHI16 :
|
||
errmsg = parse_uhi16 (cd, strp, FRV_OPERAND_UHI16, &fields->f_u16);
|
||
break;
|
||
case FRV_OPERAND_ULO16 :
|
||
errmsg = parse_ulo16 (cd, strp, FRV_OPERAND_ULO16, &fields->f_u16);
|
||
break;
|
||
|
||
default :
|
||
/* xgettext:c-format */
|
||
fprintf (stderr, _("Unrecognized field %d while parsing.\n"), opindex);
|
||
abort ();
|
||
}
|
||
|
||
return errmsg;
|
||
}
|
||
|
||
cgen_parse_fn * const frv_cgen_parse_handlers[] =
|
||
{
|
||
parse_insn_normal,
|
||
};
|
||
|
||
void
|
||
frv_cgen_init_asm (cd)
|
||
CGEN_CPU_DESC cd;
|
||
{
|
||
frv_cgen_init_opcode_table (cd);
|
||
frv_cgen_init_ibld_table (cd);
|
||
cd->parse_handlers = & frv_cgen_parse_handlers[0];
|
||
cd->parse_operand = frv_cgen_parse_operand;
|
||
}
|
||
|
||
|
||
|
||
/* Regex construction routine.
|
||
|
||
This translates an opcode syntax string into a regex string,
|
||
by replacing any non-character syntax element (such as an
|
||
opcode) with the pattern '.*'
|
||
|
||
It then compiles the regex and stores it in the opcode, for
|
||
later use by frv_cgen_assemble_insn
|
||
|
||
Returns NULL for success, an error message for failure. */
|
||
|
||
char *
|
||
frv_cgen_build_insn_regex (CGEN_INSN *insn)
|
||
{
|
||
CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
|
||
const char *mnem = CGEN_INSN_MNEMONIC (insn);
|
||
char rxbuf[CGEN_MAX_RX_ELEMENTS];
|
||
char *rx = rxbuf;
|
||
const CGEN_SYNTAX_CHAR_TYPE *syn;
|
||
int reg_err;
|
||
|
||
syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
|
||
|
||
/* Mnemonics come first in the syntax string. */
|
||
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
|
||
return _("missing mnemonic in syntax string");
|
||
++syn;
|
||
|
||
/* Generate a case sensitive regular expression that emulates case
|
||
insensitive matching in the "C" locale. We cannot generate a case
|
||
insensitive regular expression because in Turkish locales, 'i' and 'I'
|
||
are not equal modulo case conversion. */
|
||
|
||
/* Copy the literal mnemonic out of the insn. */
|
||
for (; *mnem; mnem++)
|
||
{
|
||
char c = *mnem;
|
||
|
||
if (ISALPHA (c))
|
||
{
|
||
*rx++ = '[';
|
||
*rx++ = TOLOWER (c);
|
||
*rx++ = TOUPPER (c);
|
||
*rx++ = ']';
|
||
}
|
||
else
|
||
*rx++ = c;
|
||
}
|
||
|
||
/* Copy any remaining literals from the syntax string into the rx. */
|
||
for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
|
||
{
|
||
if (CGEN_SYNTAX_CHAR_P (* syn))
|
||
{
|
||
char c = CGEN_SYNTAX_CHAR (* syn);
|
||
|
||
switch (c)
|
||
{
|
||
/* Escape any regex metacharacters in the syntax. */
|
||
case '.': case '[': case '\\':
|
||
case '*': case '^': case '$':
|
||
|
||
#ifdef CGEN_ESCAPE_EXTENDED_REGEX
|
||
case '?': case '{': case '}':
|
||
case '(': case ')': case '*':
|
||
case '|': case '+': case ']':
|
||
#endif
|
||
*rx++ = '\\';
|
||
*rx++ = c;
|
||
break;
|
||
|
||
default:
|
||
if (ISALPHA (c))
|
||
{
|
||
*rx++ = '[';
|
||
*rx++ = TOLOWER (c);
|
||
*rx++ = TOUPPER (c);
|
||
*rx++ = ']';
|
||
}
|
||
else
|
||
*rx++ = c;
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Replace non-syntax fields with globs. */
|
||
*rx++ = '.';
|
||
*rx++ = '*';
|
||
}
|
||
}
|
||
|
||
/* Trailing whitespace ok. */
|
||
* rx++ = '[';
|
||
* rx++ = ' ';
|
||
* rx++ = '\t';
|
||
* rx++ = ']';
|
||
* rx++ = '*';
|
||
|
||
/* But anchor it after that. */
|
||
* rx++ = '$';
|
||
* rx = '\0';
|
||
|
||
CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
|
||
reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
|
||
|
||
if (reg_err == 0)
|
||
return NULL;
|
||
else
|
||
{
|
||
static char msg[80];
|
||
|
||
regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
|
||
regfree ((regex_t *) CGEN_INSN_RX (insn));
|
||
free (CGEN_INSN_RX (insn));
|
||
(CGEN_INSN_RX (insn)) = NULL;
|
||
return msg;
|
||
}
|
||
}
|
||
|
||
|
||
/* Default insn parser.
|
||
|
||
The syntax string is scanned and operands are parsed and stored in FIELDS.
|
||
Relocs are queued as we go via other callbacks.
|
||
|
||
??? 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
|
||
the beginning. Backtracking will be necessary in parsing subexpressions,
|
||
but that can be handled there. Not handling backtracking here may get
|
||
expensive in the case of the m68k. Deal with later.
|
||
|
||
Returns NULL for success, an error message for failure. */
|
||
|
||
static const char *
|
||
parse_insn_normal (CGEN_CPU_DESC cd,
|
||
const CGEN_INSN *insn,
|
||
const char **strp,
|
||
CGEN_FIELDS *fields)
|
||
{
|
||
/* ??? Runtime added insns not handled yet. */
|
||
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
|
||
const char *str = *strp;
|
||
const char *errmsg;
|
||
const char *p;
|
||
const CGEN_SYNTAX_CHAR_TYPE * syn;
|
||
#ifdef CGEN_MNEMONIC_OPERANDS
|
||
/* FIXME: wip */
|
||
int past_opcode_p;
|
||
#endif
|
||
|
||
/* For now we assume the mnemonic is first (there are no leading operands).
|
||
We can parse it without needing to set up operand parsing.
|
||
GAS's input scrubber will ensure mnemonics are lowercase, but we may
|
||
not be called from GAS. */
|
||
p = CGEN_INSN_MNEMONIC (insn);
|
||
while (*p && TOLOWER (*p) == TOLOWER (*str))
|
||
++p, ++str;
|
||
|
||
if (* p)
|
||
return _("unrecognized instruction");
|
||
|
||
#ifndef CGEN_MNEMONIC_OPERANDS
|
||
if (* str && ! ISSPACE (* str))
|
||
return _("unrecognized instruction");
|
||
#endif
|
||
|
||
CGEN_INIT_PARSE (cd);
|
||
cgen_init_parse_operand (cd);
|
||
#ifdef CGEN_MNEMONIC_OPERANDS
|
||
past_opcode_p = 0;
|
||
#endif
|
||
|
||
/* We don't check for (*str != '\0') here because we want to parse
|
||
any trailing fake arguments in the syntax string. */
|
||
syn = CGEN_SYNTAX_STRING (syntax);
|
||
|
||
/* Mnemonics come first for now, ensure valid string. */
|
||
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
|
||
abort ();
|
||
|
||
++syn;
|
||
|
||
while (* syn != 0)
|
||
{
|
||
/* Non operand chars must match exactly. */
|
||
if (CGEN_SYNTAX_CHAR_P (* syn))
|
||
{
|
||
/* FIXME: While we allow for non-GAS callers above, we assume the
|
||
first char after the mnemonic part is a space. */
|
||
/* FIXME: We also take inappropriate advantage of the fact that
|
||
GAS's input scrubber will remove extraneous blanks. */
|
||
if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
|
||
{
|
||
#ifdef CGEN_MNEMONIC_OPERANDS
|
||
if (CGEN_SYNTAX_CHAR(* syn) == ' ')
|
||
past_opcode_p = 1;
|
||
#endif
|
||
++ syn;
|
||
++ str;
|
||
}
|
||
else if (*str)
|
||
{
|
||
/* Syntax char didn't match. Can't be this insn. */
|
||
static char msg [80];
|
||
|
||
/* xgettext:c-format */
|
||
sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
|
||
CGEN_SYNTAX_CHAR(*syn), *str);
|
||
return msg;
|
||
}
|
||
else
|
||
{
|
||
/* Ran out of input. */
|
||
static char msg [80];
|
||
|
||
/* xgettext:c-format */
|
||
sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
|
||
CGEN_SYNTAX_CHAR(*syn));
|
||
return msg;
|
||
}
|
||
continue;
|
||
}
|
||
|
||
/* We have an operand of some sort. */
|
||
errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn),
|
||
&str, fields);
|
||
if (errmsg)
|
||
return errmsg;
|
||
|
||
/* Done with this operand, continue with next one. */
|
||
++ syn;
|
||
}
|
||
|
||
/* If we're at the end of the syntax string, we're done. */
|
||
if (* syn == 0)
|
||
{
|
||
/* 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
|
||
the insn and it is assumed that longer versions of insns appear
|
||
before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
|
||
while (ISSPACE (* str))
|
||
++ str;
|
||
|
||
if (* str != '\0')
|
||
return _("junk at end of line"); /* FIXME: would like to include `str' */
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/* We couldn't parse it. */
|
||
return _("unrecognized instruction");
|
||
}
|
||
|
||
/* Main entry point.
|
||
This routine is called for each instruction to be assembled.
|
||
STR points to the insn to be assembled.
|
||
We assume all necessary tables have been initialized.
|
||
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
|
||
still needs to be converted to target byte order, otherwise BUF is an array
|
||
of bytes in target byte order.
|
||
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
|
||
printed).
|
||
|
||
Note that when processing (non-alias) macro-insns,
|
||
this function recurses.
|
||
|
||
??? It's possible to make this cpu-independent.
|
||
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
|
||
[for example this file isn't _that_ big], but keeping the possibility in
|
||
mind helps keep the design clean. */
|
||
|
||
const CGEN_INSN *
|
||
frv_cgen_assemble_insn (CGEN_CPU_DESC cd,
|
||
const char *str,
|
||
CGEN_FIELDS *fields,
|
||
CGEN_INSN_BYTES_PTR buf,
|
||
char **errmsg)
|
||
{
|
||
const char *start;
|
||
CGEN_INSN_LIST *ilist;
|
||
const char *parse_errmsg = NULL;
|
||
const char *insert_errmsg = NULL;
|
||
int recognized_mnemonic = 0;
|
||
|
||
/* Skip leading white space. */
|
||
while (ISSPACE (* str))
|
||
++ str;
|
||
|
||
/* The instructions are stored in hashed lists.
|
||
Get the first in the list. */
|
||
ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
|
||
|
||
/* Keep looking until we find a match. */
|
||
start = str;
|
||
for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
|
||
{
|
||
const CGEN_INSN *insn = ilist->insn;
|
||
recognized_mnemonic = 1;
|
||
|
||
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
|
||
/* Not usually needed as unsupported opcodes
|
||
shouldn't be in the hash lists. */
|
||
/* Is this insn supported by the selected cpu? */
|
||
if (! frv_cgen_insn_supported (cd, insn))
|
||
continue;
|
||
#endif
|
||
/* If the RELAXED attribute is set, this is an insn that shouldn't be
|
||
chosen immediately. Instead, it is used during assembler/linker
|
||
relaxation if possible. */
|
||
if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
|
||
continue;
|
||
|
||
str = start;
|
||
|
||
/* Skip this insn if str doesn't look right lexically. */
|
||
if (CGEN_INSN_RX (insn) != NULL &&
|
||
regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
|
||
continue;
|
||
|
||
/* Allow parse/insert handlers to obtain length of insn. */
|
||
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
|
||
|
||
parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
|
||
if (parse_errmsg != NULL)
|
||
continue;
|
||
|
||
/* ??? 0 is passed for `pc'. */
|
||
insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
|
||
(bfd_vma) 0);
|
||
if (insert_errmsg != NULL)
|
||
continue;
|
||
|
||
/* It is up to the caller to actually output the insn and any
|
||
queued relocs. */
|
||
return insn;
|
||
}
|
||
|
||
{
|
||
static char errbuf[150];
|
||
#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
|
||
const char *tmp_errmsg;
|
||
|
||
/* If requesting verbose error messages, use insert_errmsg.
|
||
Failing that, use parse_errmsg. */
|
||
tmp_errmsg = (insert_errmsg ? insert_errmsg :
|
||
parse_errmsg ? parse_errmsg :
|
||
recognized_mnemonic ?
|
||
_("unrecognized form of instruction") :
|
||
_("unrecognized instruction"));
|
||
|
||
if (strlen (start) > 50)
|
||
/* xgettext:c-format */
|
||
sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
|
||
else
|
||
/* xgettext:c-format */
|
||
sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
|
||
#else
|
||
if (strlen (start) > 50)
|
||
/* xgettext:c-format */
|
||
sprintf (errbuf, _("bad instruction `%.50s...'"), start);
|
||
else
|
||
/* xgettext:c-format */
|
||
sprintf (errbuf, _("bad instruction `%.50s'"), start);
|
||
#endif
|
||
|
||
*errmsg = errbuf;
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
#if 0 /* This calls back to GAS which we can't do without care. */
|
||
|
||
/* Record each member of OPVALS in the assembler's symbol table.
|
||
This lets GAS parse registers for us.
|
||
??? Interesting idea but not currently used. */
|
||
|
||
/* Record each member of OPVALS in the assembler's symbol table.
|
||
FIXME: Not currently used. */
|
||
|
||
void
|
||
frv_cgen_asm_hash_keywords (CGEN_CPU_DESC cd, CGEN_KEYWORD *opvals)
|
||
{
|
||
CGEN_KEYWORD_SEARCH search = cgen_keyword_search_init (opvals, NULL);
|
||
const CGEN_KEYWORD_ENTRY * ke;
|
||
|
||
while ((ke = cgen_keyword_search_next (& search)) != NULL)
|
||
{
|
||
#if 0 /* Unnecessary, should be done in the search routine. */
|
||
if (! frv_cgen_opval_supported (ke))
|
||
continue;
|
||
#endif
|
||
cgen_asm_record_register (cd, ke->name, ke->value);
|
||
}
|
||
}
|
||
|
||
#endif /* 0 */
|