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- /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
- /* Assembler interface for targets using CGEN. -*- C -*-
- CGEN: Cpu tools GENerator
- THIS FILE IS MACHINE GENERATED WITH CGEN.
- - the resultant file is machine generated, cgen-asm.in isn't
- Copyright (C) 1996-2022 Free Software Foundation, Inc.
- This file is part of libopcodes.
- This library is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3, or (at your option)
- any later version.
- It is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
- /* ??? Eventually more and more of this stuff can go to cpu-independent files.
- Keep that in mind. */
- #include "sysdep.h"
- #include <stdio.h>
- #include "ansidecl.h"
- #include "bfd.h"
- #include "symcat.h"
- #include "mep-desc.h"
- #include "mep-opc.h"
- #include "opintl.h"
- #include "xregex.h"
- #include "libiberty.h"
- #include "safe-ctype.h"
- #undef min
- #define min(a,b) ((a) < (b) ? (a) : (b))
- #undef max
- #define max(a,b) ((a) > (b) ? (a) : (b))
- static const char * parse_insn_normal
- (CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
- /* -- assembler routines inserted here. */
- /* -- asm.c */
- #include "elf/mep.h"
- #define CGEN_VALIDATE_INSN_SUPPORTED
- #define mep_cgen_insn_supported mep_cgen_insn_supported_asm
- const char * parse_csrn (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *);
- const char * parse_tpreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *);
- const char * parse_spreg (CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *);
- const char * parse_mep_align (CGEN_CPU_DESC, const char **, enum cgen_operand_type, long *);
- const char * parse_mep_alignu (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *);
- static const char * parse_signed16 (CGEN_CPU_DESC, const char **, int, long *);
- static const char * parse_signed16_range (CGEN_CPU_DESC, const char **, int, long *) ATTRIBUTE_UNUSED;
- static const char * parse_unsigned16 (CGEN_CPU_DESC, const char **, int, unsigned long *);
- static const char * parse_unsigned16_range (CGEN_CPU_DESC, const char **, int, unsigned long *) ATTRIBUTE_UNUSED;
- static const char * parse_lo16 (CGEN_CPU_DESC, const char **, int, long *, long);
- static const char * parse_unsigned7 (CGEN_CPU_DESC, const char **, enum cgen_operand_type, unsigned long *);
- static const char * parse_zero (CGEN_CPU_DESC, const char **, int, long *);
- const char *
- parse_csrn (CGEN_CPU_DESC cd, const char **strp,
- CGEN_KEYWORD *keyword_table, long *field)
- {
- const char *err;
- unsigned long value;
- err = cgen_parse_keyword (cd, strp, keyword_table, field);
- if (!err)
- return NULL;
- err = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, & value);
- if (err)
- return err;
- *field = value;
- return NULL;
- }
- /* begin-cop-ip-parse-handlers */
- static const char *
- parse_ivc2_cr (CGEN_CPU_DESC,
- const char **,
- CGEN_KEYWORD *,
- long *) ATTRIBUTE_UNUSED;
- static const char *
- parse_ivc2_cr (CGEN_CPU_DESC cd,
- const char **strp,
- CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
- long *field)
- {
- return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr_ivc2, field);
- }
- static const char *
- parse_ivc2_ccr (CGEN_CPU_DESC,
- const char **,
- CGEN_KEYWORD *,
- long *) ATTRIBUTE_UNUSED;
- static const char *
- parse_ivc2_ccr (CGEN_CPU_DESC cd,
- const char **strp,
- CGEN_KEYWORD *keyword_table ATTRIBUTE_UNUSED,
- long *field)
- {
- return cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, field);
- }
- /* end-cop-ip-parse-handlers */
- const char *
- parse_tpreg (CGEN_CPU_DESC cd, const char ** strp,
- CGEN_KEYWORD *keyword_table, long *field)
- {
- const char *err;
- err = cgen_parse_keyword (cd, strp, keyword_table, field);
- if (err)
- return err;
- if (*field != 13)
- return _("Only $tp or $13 allowed for this opcode");
- return NULL;
- }
- const char *
- parse_spreg (CGEN_CPU_DESC cd, const char ** strp,
- CGEN_KEYWORD *keyword_table, long *field)
- {
- const char *err;
- err = cgen_parse_keyword (cd, strp, keyword_table, field);
- if (err)
- return err;
- if (*field != 15)
- return _("Only $sp or $15 allowed for this opcode");
- return NULL;
- }
- const char *
- parse_mep_align (CGEN_CPU_DESC cd, const char ** strp,
- enum cgen_operand_type type, long *field)
- {
- long lsbs = 0;
- const char *err;
- switch (type)
- {
- case MEP_OPERAND_PCREL8A2:
- case MEP_OPERAND_PCREL12A2:
- case MEP_OPERAND_PCREL17A2:
- case MEP_OPERAND_PCREL24A2:
- err = cgen_parse_signed_integer (cd, strp, type, field);
- break;
- case MEP_OPERAND_PCABS24A2:
- case MEP_OPERAND_UDISP7:
- case MEP_OPERAND_UDISP7A2:
- case MEP_OPERAND_UDISP7A4:
- case MEP_OPERAND_UIMM7A4:
- case MEP_OPERAND_ADDR24A4:
- err = cgen_parse_unsigned_integer (cd, strp, type, (unsigned long *) field);
- break;
- default:
- abort();
- }
- if (err)
- return err;
- switch (type)
- {
- case MEP_OPERAND_UDISP7:
- lsbs = 0;
- break;
- case MEP_OPERAND_PCREL8A2:
- case MEP_OPERAND_PCREL12A2:
- case MEP_OPERAND_PCREL17A2:
- case MEP_OPERAND_PCREL24A2:
- case MEP_OPERAND_PCABS24A2:
- case MEP_OPERAND_UDISP7A2:
- lsbs = *field & 1;
- break;
- case MEP_OPERAND_UDISP7A4:
- case MEP_OPERAND_UIMM7A4:
- case MEP_OPERAND_ADDR24A4:
- lsbs = *field & 3;
- break;
- lsbs = *field & 7;
- break;
- default:
- /* Safe assumption? */
- abort ();
- }
- if (lsbs)
- return "Value is not aligned enough";
- return NULL;
- }
- const char *
- parse_mep_alignu (CGEN_CPU_DESC cd, const char ** strp,
- enum cgen_operand_type type, unsigned long *field)
- {
- return parse_mep_align (cd, strp, type, (long *) field);
- }
- /* Handle %lo(), %tpoff(), %sdaoff(), %hi(), and other signed
- constants in a signed context. */
- static const char *
- parse_signed16 (CGEN_CPU_DESC cd,
- const char **strp,
- int opindex,
- long *valuep)
- {
- return parse_lo16 (cd, strp, opindex, valuep, 1);
- }
- static const char *
- parse_lo16 (CGEN_CPU_DESC cd,
- const char **strp,
- int opindex,
- long *valuep,
- long signedp)
- {
- const char *errmsg;
- enum cgen_parse_operand_result result_type;
- bfd_vma value;
- if (strncasecmp (*strp, "%lo(", 4) == 0)
- {
- *strp += 4;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16,
- & result_type, & value);
- if (**strp != ')')
- return _("missing `)'");
- ++*strp;
- if (errmsg == NULL
- && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
- value &= 0xffff;
- if (signedp)
- *valuep = (long)(short) value;
- else
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%hi(", 4) == 0)
- {
- *strp += 4;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S,
- & result_type, & value);
- if (**strp != ')')
- return _("missing `)'");
- ++*strp;
- if (errmsg == NULL
- && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
- value = (value + 0x8000) >> 16;
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%uhi(", 5) == 0)
- {
- *strp += 5;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U,
- & result_type, & value);
- if (**strp != ')')
- return _("missing `)'");
- ++*strp;
- if (errmsg == NULL
- && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
- value = value >> 16;
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%sdaoff(", 8) == 0)
- {
- *strp += 8;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL,
- NULL, & value);
- if (**strp != ')')
- return _("missing `)'");
- ++*strp;
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%tpoff(", 7) == 0)
- {
- *strp += 7;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL,
- NULL, & value);
- if (**strp != ')')
- return _("missing `)'");
- ++*strp;
- *valuep = value;
- return errmsg;
- }
- if (**strp == '%')
- return _("invalid %function() here");
- return cgen_parse_signed_integer (cd, strp, opindex, valuep);
- }
- static const char *
- parse_unsigned16 (CGEN_CPU_DESC cd,
- const char **strp,
- int opindex,
- unsigned long *valuep)
- {
- return parse_lo16 (cd, strp, opindex, (long *) valuep, 0);
- }
- static const char *
- parse_signed16_range (CGEN_CPU_DESC cd,
- const char **strp,
- int opindex,
- signed long *valuep)
- {
- const char *errmsg = 0;
- signed long value;
- errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
- if (errmsg)
- return errmsg;
- if (value < -32768 || value > 32767)
- return _("Immediate is out of range -32768 to 32767");
- *valuep = value;
- return 0;
- }
- static const char *
- parse_unsigned16_range (CGEN_CPU_DESC cd,
- const char **strp,
- int opindex,
- unsigned long *valuep)
- {
- const char *errmsg = 0;
- unsigned long value;
- errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, & value);
- if (errmsg)
- return errmsg;
- if (value > 65535)
- return _("Immediate is out of range 0 to 65535");
- *valuep = value;
- return 0;
- }
- /* A special case of parse_signed16 which accepts only the value zero. */
- static const char *
- parse_zero (CGEN_CPU_DESC cd, const char **strp, int opindex, long *valuep)
- {
- const char *errmsg;
- enum cgen_parse_operand_result result_type;
- bfd_vma value;
- /*fprintf(stderr, "dj: signed parse opindex `%s'\n", *strp);*/
- /* Prevent ($ry) from being attempted as an expression on 'sw $rx,($ry)'.
- It will fail and cause ry to be listed as an undefined symbol in the
- listing. */
- if (strncmp (*strp, "($", 2) == 0)
- return "not zero"; /* any string will do -- will never be seen. */
- if (strncasecmp (*strp, "%lo(", 4) == 0)
- {
- *strp += 4;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_LOW16,
- &result_type, &value);
- if (**strp != ')')
- return "missing `)'";
- ++*strp;
- if (errmsg == NULL
- && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
- return "not zero"; /* any string will do -- will never be seen. */
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%hi(", 4) == 0)
- {
- *strp += 4;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16S,
- &result_type, &value);
- if (**strp != ')')
- return "missing `)'";
- ++*strp;
- if (errmsg == NULL
- && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
- return "not zero"; /* any string will do -- will never be seen. */
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%uhi(", 5) == 0)
- {
- *strp += 5;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_HI16U,
- &result_type, &value);
- if (**strp != ')')
- return "missing `)'";
- ++*strp;
- if (errmsg == NULL
- && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
- return "not zero"; /* any string will do -- will never be seen. */
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%sdaoff(", 8) == 0)
- {
- *strp += 8;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_GPREL,
- &result_type, &value);
- if (**strp != ')')
- return "missing `)'";
- ++*strp;
- if (errmsg == NULL
- && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
- return "not zero"; /* any string will do -- will never be seen. */
- *valuep = value;
- return errmsg;
- }
- if (strncasecmp (*strp, "%tpoff(", 7) == 0)
- {
- *strp += 7;
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_MEP_TPREL,
- &result_type, &value);
- if (**strp != ')')
- return "missing `)'";
- ++*strp;
- if (errmsg == NULL
- && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
- return "not zero"; /* any string will do -- will never be seen. */
- *valuep = value;
- return errmsg;
- }
- if (**strp == '%')
- return "invalid %function() here";
- errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_NONE,
- &result_type, &value);
- if (errmsg == NULL
- && (result_type != CGEN_PARSE_OPERAND_RESULT_NUMBER || value != 0))
- return "not zero"; /* any string will do -- will never be seen. */
- return errmsg;
- }
- static const char *
- parse_unsigned7 (CGEN_CPU_DESC cd, const char **strp,
- enum cgen_operand_type opindex, unsigned long *valuep)
- {
- const char *errmsg;
- bfd_vma value;
- /* fprintf(stderr, "dj: unsigned7 parse `%s'\n", *strp); */
- if (strncasecmp (*strp, "%tpoff(", 7) == 0)
- {
- int reloc;
- *strp += 7;
- switch (opindex)
- {
- case MEP_OPERAND_UDISP7:
- reloc = BFD_RELOC_MEP_TPREL7;
- break;
- case MEP_OPERAND_UDISP7A2:
- reloc = BFD_RELOC_MEP_TPREL7A2;
- break;
- case MEP_OPERAND_UDISP7A4:
- reloc = BFD_RELOC_MEP_TPREL7A4;
- break;
- default:
- /* Safe assumption? */
- abort ();
- }
- errmsg = cgen_parse_address (cd, strp, opindex, reloc,
- NULL, &value);
- if (**strp != ')')
- return "missing `)'";
- ++*strp;
- *valuep = value;
- return errmsg;
- }
- if (**strp == '%')
- return _("invalid %function() here");
- return parse_mep_alignu (cd, strp, opindex, valuep);
- }
- static ATTRIBUTE_UNUSED const char *
- parse_cdisp10 (CGEN_CPU_DESC cd,
- const char **strp,
- int opindex,
- long *valuep)
- {
- const char *errmsg = 0;
- signed long value;
- long have_zero = 0;
- int wide = 0;
- int alignment;
- switch (opindex)
- {
- case MEP_OPERAND_CDISP10A4:
- alignment = 2;
- break;
- case MEP_OPERAND_CDISP10A2:
- alignment = 1;
- break;
- case MEP_OPERAND_CDISP10:
- default:
- alignment = 0;
- break;
- }
- if ((MEP_CPU & EF_MEP_CPU_MASK) == EF_MEP_CPU_C5)
- wide = 1;
- if (strncmp (*strp, "0x0", 3) == 0
- || (**strp == '0' && *(*strp + 1) != 'x'))
- have_zero = 1;
- errmsg = cgen_parse_signed_integer (cd, strp, opindex, & value);
- if (errmsg)
- return errmsg;
- if (wide)
- {
- if (value < -512 || value > 511)
- return _("Immediate is out of range -512 to 511");
- }
- else
- {
- if (value < -128 || value > 127)
- return _("Immediate is out of range -128 to 127");
- }
- if (value & ((1<<alignment)-1))
- return _("Value is not aligned enough");
- /* If this field may require a relocation then use larger dsp16. */
- if (! have_zero && value == 0)
- return (wide ? _("Immediate is out of range -512 to 511")
- : _("Immediate is out of range -128 to 127"));
- *valuep = value;
- return 0;
- }
- /* BEGIN LIGHTWEIGHT MACRO PROCESSOR. */
- #define MAXARGS 9
- typedef struct
- {
- char *name;
- char *expansion;
- } macro;
- typedef struct
- {
- const char *start;
- int len;
- } arg;
- static macro const macros[] =
- {
- { "sizeof", "(`1.end + (- `1))"},
- { "startof", "(`1 | 0)" },
- { "align4", "(`1&(~3))"},
- /*{ "hi", "(((`1+0x8000)>>16) & 0xffff)" }, */
- /*{ "lo", "(`1 & 0xffff)" }, */
- /*{ "sdaoff", "((`1-__sdabase) & 0x7f)"}, */
- /*{ "tpoff", "((`1-__tpbase) & 0x7f)"}, */
- { 0,0 }
- };
- static char * expand_string (const char *, int);
- static const char *
- mep_cgen_expand_macros_and_parse_operand
- (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
- static char *
- str_append (char *dest, const char *input, int len)
- {
- char *new_dest;
- int oldlen;
- if (len == 0)
- return dest;
- /* printf("str_append: <<%s>>, <<%s>>, %d\n", dest, input, len); */
- oldlen = (dest ? strlen(dest) : 0);
- new_dest = realloc (dest, oldlen + len + 1);
- memset (new_dest + oldlen, 0, len + 1);
- return strncat (new_dest, input, len);
- }
- static const macro *
- lookup_macro (const char *name)
- {
- const macro *m;
- for (m = macros; m->name; ++m)
- if (strncmp (m->name, name, strlen(m->name)) == 0)
- return m;
- return 0;
- }
- static char *
- expand_macro (arg *args, int narg, const macro *mac)
- {
- char *result = 0, *rescanned_result = 0;
- char *e = mac->expansion;
- char *mark = e;
- int mac_arg = 0;
- /* printf("expanding macro %s with %d args\n", mac->name, narg + 1); */
- while (*e)
- {
- if (*e == '`' &&
- (*e+1) &&
- ((*(e + 1) - '1') <= MAXARGS) &&
- ((*(e + 1) - '1') <= narg))
- {
- result = str_append (result, mark, e - mark);
- mac_arg = (*(e + 1) - '1');
- /* printf("replacing `%d with %s\n", mac_arg+1, args[mac_arg].start); */
- result = str_append (result, args[mac_arg].start, args[mac_arg].len);
- ++e;
- mark = e+1;
- }
- ++e;
- }
- if (mark != e)
- result = str_append (result, mark, e - mark);
- if (result)
- {
- rescanned_result = expand_string (result, 0);
- free (result);
- return rescanned_result;
- }
- else
- return result;
- }
- #define IN_TEXT 0
- #define IN_ARGS 1
- static char *
- expand_string (const char *in, int first_only)
- {
- int num_expansions = 0;
- int depth = 0;
- int narg = -1;
- arg args[MAXARGS];
- int state = IN_TEXT;
- const char *mark = in;
- const macro *pmacro = NULL;
- char *expansion = 0;
- char *result = 0;
- while (*in)
- {
- switch (state)
- {
- case IN_TEXT:
- if (*in == '%' && *(in + 1) && (!first_only || num_expansions == 0))
- {
- pmacro = lookup_macro (in + 1);
- if (pmacro)
- {
- /* printf("entering state %d at '%s'...\n", state, in); */
- result = str_append (result, mark, in - mark);
- mark = in;
- in += 1 + strlen (pmacro->name);
- while (*in == ' ') ++in;
- if (*in != '(')
- {
- state = IN_TEXT;
- pmacro = NULL;
- }
- else
- {
- state = IN_ARGS;
- narg = 0;
- args[narg].start = in + 1;
- args[narg].len = 0;
- mark = in + 1;
- }
- }
- }
- break;
- case IN_ARGS:
- if (depth == 0)
- {
- switch (*in)
- {
- case ',':
- narg++;
- args[narg].start = (in + 1);
- args[narg].len = 0;
- break;
- case ')':
- state = IN_TEXT;
- /* printf("entering state %d at '%s'...\n", state, in); */
- if (pmacro)
- {
- expansion = 0;
- expansion = expand_macro (args, narg, pmacro);
- num_expansions++;
- if (expansion)
- {
- result = str_append (result, expansion, strlen (expansion));
- free (expansion);
- }
- }
- else
- {
- result = str_append (result, mark, in - mark);
- }
- pmacro = NULL;
- mark = in + 1;
- break;
- case '(':
- depth++;
- /* Fall through. */
- default:
- args[narg].len++;
- break;
- }
- }
- else
- {
- if (*in == ')')
- depth--;
- if (narg > -1)
- args[narg].len++;
- }
- }
- ++in;
- }
- if (mark != in)
- result = str_append (result, mark, in - mark);
- return result;
- }
- #undef IN_ARGS
- #undef IN_TEXT
- #undef MAXARGS
- /* END LIGHTWEIGHT MACRO PROCESSOR. */
- const char * mep_cgen_parse_operand
- (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
- const char *
- mep_cgen_expand_macros_and_parse_operand (CGEN_CPU_DESC cd, int opindex,
- const char ** strp_in, CGEN_FIELDS * fields)
- {
- const char * errmsg = NULL;
- char *str = 0, *hold = 0;
- const char **strp = 0;
- /* Set up a new pointer to macro-expanded string. */
- str = expand_string (*strp_in, 1);
- /* fprintf (stderr, " expanded <<%s>> to <<%s>>\n", *strp_in, str); */
- hold = str;
- strp = (const char **)(&str);
- errmsg = mep_cgen_parse_operand (cd, opindex, strp, fields);
- /* Now work out the advance. */
- if (strlen (str) == 0)
- *strp_in += strlen (*strp_in);
- else
- {
- if (strstr (*strp_in, str))
- /* A macro-expansion was pulled off the front. */
- *strp_in = strstr (*strp_in, str);
- else
- /* A non-macro-expansion was pulled off the front. */
- *strp_in += (str - hold);
- }
- free (hold);
- return errmsg;
- }
- #define CGEN_ASM_INIT_HOOK (cd->parse_operand = mep_cgen_expand_macros_and_parse_operand);
- /* -- dis.c */
- const char * mep_cgen_parse_operand
- (CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
- /* Main entry point for operand parsing.
- This function is basically just a big switch statement. Earlier versions
- used tables to look up the function to use, but
- - 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
- the handlers. */
- const char *
- mep_cgen_parse_operand (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 MEP_OPERAND_ADDR24A4 :
- errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_ADDR24A4, (unsigned long *) (& fields->f_24u8a4n));
- break;
- case MEP_OPERAND_C5RMUIMM20 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RMUIMM20, (unsigned long *) (& fields->f_c5_rmuimm20));
- break;
- case MEP_OPERAND_C5RNMUIMM24 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_C5RNMUIMM24, (unsigned long *) (& fields->f_c5_rnmuimm24));
- break;
- case MEP_OPERAND_CALLNUM :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CALLNUM, (unsigned long *) (& fields->f_callnum));
- break;
- case MEP_OPERAND_CCCC :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CCCC, (unsigned long *) (& fields->f_rm));
- break;
- case MEP_OPERAND_CCRN :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & fields->f_ccrn);
- break;
- case MEP_OPERAND_CDISP10 :
- errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10, (long *) (& fields->f_cdisp10));
- break;
- case MEP_OPERAND_CDISP10A2 :
- errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A2, (long *) (& fields->f_cdisp10));
- break;
- case MEP_OPERAND_CDISP10A4 :
- errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A4, (long *) (& fields->f_cdisp10));
- break;
- case MEP_OPERAND_CDISP10A8 :
- errmsg = parse_cdisp10 (cd, strp, MEP_OPERAND_CDISP10A8, (long *) (& fields->f_cdisp10));
- break;
- case MEP_OPERAND_CDISP12 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_CDISP12, (long *) (& fields->f_12s20));
- break;
- case MEP_OPERAND_CIMM4 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM4, (unsigned long *) (& fields->f_rn));
- break;
- case MEP_OPERAND_CIMM5 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CIMM5, (unsigned long *) (& fields->f_5u24));
- break;
- case MEP_OPERAND_CODE16 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE16, (unsigned long *) (& fields->f_16u16));
- break;
- case MEP_OPERAND_CODE24 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CODE24, (unsigned long *) (& fields->f_24u4n));
- break;
- case MEP_OPERAND_CP_FLAG :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr, & junk);
- break;
- case MEP_OPERAND_CRN :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crn);
- break;
- case MEP_OPERAND_CRN64 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crn);
- break;
- case MEP_OPERAND_CRNX :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr, & fields->f_crnx);
- break;
- case MEP_OPERAND_CRNX64 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_crnx);
- break;
- case MEP_OPERAND_CROC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u7);
- break;
- case MEP_OPERAND_CROP :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u23);
- break;
- case MEP_OPERAND_CRPC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u26);
- break;
- case MEP_OPERAND_CRPP :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u18);
- break;
- case MEP_OPERAND_CRQC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u21);
- break;
- case MEP_OPERAND_CRQP :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_5u13);
- break;
- case MEP_OPERAND_CSRN :
- errmsg = parse_csrn (cd, strp, & mep_cgen_opval_h_csr, & fields->f_csrn);
- break;
- case MEP_OPERAND_CSRN_IDX :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_CSRN_IDX, (unsigned long *) (& fields->f_csrn));
- break;
- case MEP_OPERAND_DBG :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_DEPC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_EPC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_EXC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_HI :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_IMM16P0 :
- errmsg = parse_unsigned16_range (cd, strp, MEP_OPERAND_IMM16P0, (unsigned long *) (& fields->f_ivc2_imm16p0));
- break;
- case MEP_OPERAND_IMM3P12 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P12, (unsigned long *) (& fields->f_ivc2_3u12));
- break;
- case MEP_OPERAND_IMM3P25 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P25, (unsigned long *) (& fields->f_ivc2_3u25));
- break;
- case MEP_OPERAND_IMM3P4 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P4, (unsigned long *) (& fields->f_ivc2_3u4));
- break;
- case MEP_OPERAND_IMM3P5 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P5, (unsigned long *) (& fields->f_ivc2_3u5));
- break;
- case MEP_OPERAND_IMM3P9 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM3P9, (unsigned long *) (& fields->f_ivc2_3u9));
- break;
- case MEP_OPERAND_IMM4P10 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P10, (unsigned long *) (& fields->f_ivc2_4u10));
- break;
- case MEP_OPERAND_IMM4P4 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P4, (unsigned long *) (& fields->f_ivc2_4u4));
- break;
- case MEP_OPERAND_IMM4P8 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM4P8, (unsigned long *) (& fields->f_ivc2_4u8));
- break;
- case MEP_OPERAND_IMM5P23 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P23, (unsigned long *) (& fields->f_ivc2_5u23));
- break;
- case MEP_OPERAND_IMM5P3 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P3, (unsigned long *) (& fields->f_ivc2_5u3));
- break;
- case MEP_OPERAND_IMM5P7 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P7, (unsigned long *) (& fields->f_ivc2_5u7));
- break;
- case MEP_OPERAND_IMM5P8 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM5P8, (unsigned long *) (& fields->f_ivc2_5u8));
- break;
- case MEP_OPERAND_IMM6P2 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P2, (unsigned long *) (& fields->f_ivc2_6u2));
- break;
- case MEP_OPERAND_IMM6P6 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM6P6, (unsigned long *) (& fields->f_ivc2_6u6));
- break;
- case MEP_OPERAND_IMM8P0 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P0, (unsigned long *) (& fields->f_ivc2_8u0));
- break;
- case MEP_OPERAND_IMM8P20 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P20, (unsigned long *) (& fields->f_ivc2_8u20));
- break;
- case MEP_OPERAND_IMM8P4 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IMM8P4, (unsigned long *) (& fields->f_ivc2_8u4));
- break;
- case MEP_OPERAND_IVC_X_0_2 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_2, (unsigned long *) (& fields->f_ivc2_2u0));
- break;
- case MEP_OPERAND_IVC_X_0_3 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_3, (unsigned long *) (& fields->f_ivc2_3u0));
- break;
- case MEP_OPERAND_IVC_X_0_4 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_4, (unsigned long *) (& fields->f_ivc2_4u0));
- break;
- case MEP_OPERAND_IVC_X_0_5 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_0_5, (unsigned long *) (& fields->f_ivc2_5u0));
- break;
- case MEP_OPERAND_IVC_X_6_1 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_1, (unsigned long *) (& fields->f_ivc2_1u6));
- break;
- case MEP_OPERAND_IVC_X_6_2 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_2, (unsigned long *) (& fields->f_ivc2_2u6));
- break;
- case MEP_OPERAND_IVC_X_6_3 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_IVC_X_6_3, (unsigned long *) (& fields->f_ivc2_3u6));
- break;
- case MEP_OPERAND_IVC2_ACC0_0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_2 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_3 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_4 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_5 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_6 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC0_7 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_2 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_3 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_4 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_5 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_6 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_ACC1_7 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_CC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_COFA0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_COFA1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_COFR0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_COFR1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_CSAR0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2_CSAR1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & junk);
- break;
- case MEP_OPERAND_IVC2C3CCRN :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn_c3);
- break;
- case MEP_OPERAND_IVC2CCRN :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_ccr_ivc2, & fields->f_ivc2_ccrn);
- break;
- case MEP_OPERAND_IVC2CRN :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_cr64, & fields->f_ivc2_crnx);
- break;
- case MEP_OPERAND_IVC2RM :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_ivc2_crm);
- break;
- case MEP_OPERAND_LO :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_LP :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_MB0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_MB1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_ME0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_ME1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_NPC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_OPT :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_PCABS24A2 :
- errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_PCABS24A2, (unsigned long *) (& fields->f_24u5a2n));
- break;
- case MEP_OPERAND_PCREL12A2 :
- errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL12A2, (long *) (& fields->f_12s4a2));
- break;
- case MEP_OPERAND_PCREL17A2 :
- errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL17A2, (long *) (& fields->f_17s16a2));
- break;
- case MEP_OPERAND_PCREL24A2 :
- errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL24A2, (long *) (& fields->f_24s5a2n));
- break;
- case MEP_OPERAND_PCREL8A2 :
- errmsg = parse_mep_align (cd, strp, MEP_OPERAND_PCREL8A2, (long *) (& fields->f_8s8a2));
- break;
- case MEP_OPERAND_PSW :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_R0 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk);
- break;
- case MEP_OPERAND_R1 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk);
- break;
- case MEP_OPERAND_RL :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl);
- break;
- case MEP_OPERAND_RL5 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rl5);
- break;
- case MEP_OPERAND_RM :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm);
- break;
- case MEP_OPERAND_RMA :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rm);
- break;
- case MEP_OPERAND_RN :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_RN3 :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RN3C :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RN3L :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RN3S :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RN3UC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RN3UL :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RN3US :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn3);
- break;
- case MEP_OPERAND_RNC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_RNL :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_RNS :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_RNUC :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_RNUL :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_RNUS :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & fields->f_rn);
- break;
- case MEP_OPERAND_SAR :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_csr, & junk);
- break;
- case MEP_OPERAND_SDISP16 :
- errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SDISP16, (long *) (& fields->f_16s16));
- break;
- case MEP_OPERAND_SIMM16 :
- errmsg = parse_signed16 (cd, strp, MEP_OPERAND_SIMM16, (long *) (& fields->f_16s16));
- break;
- case MEP_OPERAND_SIMM16P0 :
- errmsg = parse_signed16_range (cd, strp, MEP_OPERAND_SIMM16P0, (long *) (& fields->f_ivc2_simm16p0));
- break;
- case MEP_OPERAND_SIMM6 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM6, (long *) (& fields->f_6s8));
- break;
- case MEP_OPERAND_SIMM8 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8, (long *) (& fields->f_8s8));
- break;
- case MEP_OPERAND_SIMM8P0 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P0, (long *) (& fields->f_ivc2_8s0));
- break;
- case MEP_OPERAND_SIMM8P20 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P20, (long *) (& fields->f_ivc2_8s20));
- break;
- case MEP_OPERAND_SIMM8P4 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_SIMM8P4, (long *) (& fields->f_ivc2_8s4));
- break;
- case MEP_OPERAND_SP :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk);
- break;
- case MEP_OPERAND_SPR :
- errmsg = parse_spreg (cd, strp, & mep_cgen_opval_h_gpr, & junk);
- break;
- case MEP_OPERAND_TP :
- errmsg = cgen_parse_keyword (cd, strp, & mep_cgen_opval_h_gpr, & junk);
- break;
- case MEP_OPERAND_TPR :
- errmsg = parse_tpreg (cd, strp, & mep_cgen_opval_h_gpr, & junk);
- break;
- case MEP_OPERAND_UDISP2 :
- errmsg = cgen_parse_signed_integer (cd, strp, MEP_OPERAND_UDISP2, (long *) (& fields->f_2u6));
- break;
- case MEP_OPERAND_UDISP7 :
- errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7, (unsigned long *) (& fields->f_7u9));
- break;
- case MEP_OPERAND_UDISP7A2 :
- errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A2, (unsigned long *) (& fields->f_7u9a2));
- break;
- case MEP_OPERAND_UDISP7A4 :
- errmsg = parse_unsigned7 (cd, strp, MEP_OPERAND_UDISP7A4, (unsigned long *) (& fields->f_7u9a4));
- break;
- case MEP_OPERAND_UIMM16 :
- errmsg = parse_unsigned16 (cd, strp, MEP_OPERAND_UIMM16, (unsigned long *) (& fields->f_16u16));
- break;
- case MEP_OPERAND_UIMM2 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM2, (unsigned long *) (& fields->f_2u10));
- break;
- case MEP_OPERAND_UIMM24 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM24, (unsigned long *) (& fields->f_24u8n));
- break;
- case MEP_OPERAND_UIMM3 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM3, (unsigned long *) (& fields->f_3u5));
- break;
- case MEP_OPERAND_UIMM4 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM4, (unsigned long *) (& fields->f_4u8));
- break;
- case MEP_OPERAND_UIMM5 :
- errmsg = cgen_parse_unsigned_integer (cd, strp, MEP_OPERAND_UIMM5, (unsigned long *) (& fields->f_5u8));
- break;
- case MEP_OPERAND_UIMM7A4 :
- errmsg = parse_mep_alignu (cd, strp, MEP_OPERAND_UIMM7A4, (unsigned long *) (& fields->f_7u9a4));
- break;
- case MEP_OPERAND_ZERO :
- errmsg = parse_zero (cd, strp, MEP_OPERAND_ZERO, (long *) (& junk));
- break;
- default :
- /* xgettext:c-format */
- opcodes_error_handler
- (_("internal error: unrecognized field %d while parsing"),
- opindex);
- abort ();
- }
- return errmsg;
- }
- cgen_parse_fn * const mep_cgen_parse_handlers[] =
- {
- parse_insn_normal,
- };
- void
- mep_cgen_init_asm (CGEN_CPU_DESC cd)
- {
- mep_cgen_init_opcode_table (cd);
- mep_cgen_init_ibld_table (cd);
- cd->parse_handlers = & mep_cgen_parse_handlers[0];
- cd->parse_operand = mep_cgen_parse_operand;
- #ifdef CGEN_ASM_INIT_HOOK
- CGEN_ASM_INIT_HOOK
- #endif
- }
- /* 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 mep_cgen_assemble_insn
- Returns NULL for success, an error message for failure. */
- char *
- mep_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;
- }
- #ifdef CGEN_MNEMONIC_OPERANDS
- (void) past_opcode_p;
- #endif
- /* 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 *
- mep_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 (! mep_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];
- const char *tmp_errmsg;
- #ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
- #define be_verbose 1
- #else
- #define be_verbose 0
- #endif
- if (be_verbose)
- {
- /* 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);
- }
- *errmsg = errbuf;
- return NULL;
- }
- }
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