diff options
Diffstat (limited to 'contrib/binutils/opcodes/cgen-asm.c')
-rw-r--r-- | contrib/binutils/opcodes/cgen-asm.c | 105 |
1 files changed, 55 insertions, 50 deletions
diff --git a/contrib/binutils/opcodes/cgen-asm.c b/contrib/binutils/opcodes/cgen-asm.c index 732ba57..6dd558b 100644 --- a/contrib/binutils/opcodes/cgen-asm.c +++ b/contrib/binutils/opcodes/cgen-asm.c @@ -1,28 +1,30 @@ /* CGEN generic assembler support code. -Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. -This file is part of the GNU Binutils and GDB, the GNU debugger. + This file is part of the GNU Binutils and GDB, the GNU debugger. -This program 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 2, or (at your option) -any later version. + This program 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 2, or (at your option) + any later version. -This program 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. + This program 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., -59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + 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., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "sysdep.h" #include <stdio.h> +#include <ctype.h> #include "ansidecl.h" #include "libiberty.h" #include "bfd.h" +#include "symcat.h" #include "opcode/cgen.h" /* Operand parsing callback. */ @@ -64,11 +66,11 @@ cgen_init_parse_operand () static void build_asm_hash_table () { - int i; unsigned int hash; int count = cgen_insn_count (); CGEN_OPCODE_DATA *data = cgen_current_opcode_data; CGEN_INSN_TABLE *insn_table = data->insn_table; + unsigned int entry_size = insn_table->entry_size; unsigned int hash_size = insn_table->asm_hash_table_size; const CGEN_INSN *insn; CGEN_INSN_LIST *insn_lists,*new_insns; @@ -87,13 +89,18 @@ build_asm_hash_table () /* Add compiled in insns. The table is scanned backwards as later additions are inserted in front of earlier ones and we want earlier ones to be prefered. - We stop at the first one as it is a reserved entry. */ - - for (insn = insn_table->init_entries + insn_table->num_init_entries - 1; + We stop at the first one as it is a reserved entry. + This is a bit tricky as the attribute member of CGEN_INSN is variable + among architectures. This code could be moved to cgen-asm.in, but + I prefer to keep it here for now. */ + + for (insn = (CGEN_INSN *) + ((char *) insn_table->init_entries + + entry_size * (insn_table->num_init_entries - 1)); insn > insn_table->init_entries; - --insn, ++insn_lists) + insn = (CGEN_INSN *) ((char *) insn - entry_size), ++insn_lists) { - hash = (*insn_table->asm_hash) (insn->syntax.mnemonic); + hash = (*insn_table->asm_hash) CGEN_INSN_MNEMONIC (insn); insn_lists->next = asm_hash_table[hash]; insn_lists->insn = insn; asm_hash_table[hash] = insn_lists; @@ -106,7 +113,7 @@ build_asm_hash_table () new_insns != NULL; new_insns = new_insns->next, ++insn_lists) { - hash = (*insn_table->asm_hash) (new_insns->insn->syntax.mnemonic); + hash = (*insn_table->asm_hash) CGEN_INSN_MNEMONIC (new_insns->insn); insn_lists->next = asm_hash_table[hash]; insn_lists->insn = new_insns->insn; asm_hash_table[hash] = insn_lists; @@ -139,35 +146,40 @@ cgen_asm_lookup_insn (insn) const char * cgen_parse_keyword (strp, keyword_table, valuep) const char **strp; - struct cgen_keyword *keyword_table; + CGEN_KEYWORD *keyword_table; long *valuep; { - const struct cgen_keyword_entry *ke; + const CGEN_KEYWORD_ENTRY *ke; char buf[256]; - const char *p; + const char *p,*start; - p = *strp; + p = start = *strp; - /* Allow any first character. */ + /* Allow any first character. + Note that this allows recognizing ",a" for the annul flag in sparc + even though "," is subsequently not a valid keyword char. */ if (*p) ++p; /* Now allow letters, digits, and _. */ - while (isalnum (*p) || *p == '_') + while (((p - start) < (int) sizeof (buf)) + && (isalnum ((unsigned char) *p) || *p == '_')) ++p; - if (p - *strp > 255) + if (p - start >= (int) sizeof (buf)) return "unrecognized keyword/register name"; - memcpy (buf, *strp, p - *strp); - buf[p - *strp] = 0; + memcpy (buf, start, p - start); + buf[p - start] = 0; ke = cgen_keyword_lookup_name (keyword_table, buf); if (ke != NULL) { *valuep = ke->value; - *strp = p; + /* Don't advance pointer if we recognized the null keyword. */ + if (ke->name[0] != 0) + *strp = p; return NULL; } @@ -177,13 +189,12 @@ cgen_parse_keyword (strp, keyword_table, valuep) /* Signed integer parser. */ const char * -cgen_parse_signed_integer (strp, opindex, min, max, valuep) +cgen_parse_signed_integer (strp, opindex, valuep) const char **strp; int opindex; - long min, max; long *valuep; { - long value; + bfd_vma value; enum cgen_parse_operand_result result; const char *errmsg; @@ -192,24 +203,19 @@ cgen_parse_signed_integer (strp, opindex, min, max, valuep) &result, &value); /* FIXME: Examine `result'. */ if (!errmsg) - { - if (value < min || value > max) - return "integer operand out of range"; - *valuep = value; - } + *valuep = value; return errmsg; } /* Unsigned integer parser. */ const char * -cgen_parse_unsigned_integer (strp, opindex, min, max, valuep) +cgen_parse_unsigned_integer (strp, opindex, valuep) const char **strp; int opindex; - unsigned long min, max; unsigned long *valuep; { - unsigned long value; + bfd_vma value; enum cgen_parse_operand_result result; const char *errmsg; @@ -218,33 +224,32 @@ cgen_parse_unsigned_integer (strp, opindex, min, max, valuep) &result, &value); /* FIXME: Examine `result'. */ if (!errmsg) - { - if (value < min || value > max) - return "integer operand out of range"; - *valuep = value; - } + *valuep = value; return errmsg; } /* Address parser. */ const char * -cgen_parse_address (strp, opindex, opinfo, valuep) +cgen_parse_address (strp, opindex, opinfo, resultp, valuep) const char **strp; int opindex; int opinfo; + enum cgen_parse_operand_result *resultp; long *valuep; { - long value; - enum cgen_parse_operand_result result; + bfd_vma value; + enum cgen_parse_operand_result result_type; const char *errmsg; errmsg = (*cgen_parse_operand_fn) (CGEN_PARSE_OPERAND_ADDRESS, strp, opindex, opinfo, - &result, &value); + &result_type, &value); /* FIXME: Examine `result'. */ if (!errmsg) { + if (resultp != NULL) + *resultp = result_type; *valuep = value; } return errmsg; |