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Diffstat (limited to 'opcodes/cgen-asm.c')
| -rw-r--r-- | opcodes/cgen-asm.c | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/opcodes/cgen-asm.c b/opcodes/cgen-asm.c deleted file mode 100644 index 4ed69363a9d..00000000000 --- a/opcodes/cgen-asm.c +++ /dev/null @@ -1,359 +0,0 @@ -/* CGEN generic assembler support code. - - Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc. - - 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 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. */ - -#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" -#include "opintl.h" - -/* Set the cgen_parse_operand_fn callback. */ - -void -cgen_set_parse_operand_fn (cd, fn) - CGEN_CPU_DESC cd; - cgen_parse_operand_fn fn; -{ - cd->parse_operand_fn = fn; -} - -/* Called whenever starting to parse an insn. */ - -void -cgen_init_parse_operand (cd) - CGEN_CPU_DESC cd; -{ - /* This tells the callback to re-initialize. */ - (void) (* cd->parse_operand_fn) - (cd, CGEN_PARSE_OPERAND_INIT, NULL, 0, 0, NULL, NULL); -} - -/* Subroutine of build_asm_hash_table to add INSNS to the hash table. - - COUNT is the number of elements in INSNS. - ENTSIZE is sizeof (CGEN_IBASE) for the target. - ??? No longer used but leave in for now. - HTABLE points to the hash table. - HENTBUF is a pointer to sufficiently large buffer of hash entries. - The result is a pointer to the next entry to use. - - The table is scanned backwards as additions are made to the front of the - list and we want earlier ones to be prefered. */ - -static CGEN_INSN_LIST * -hash_insn_array (cd, insns, count, entsize, htable, hentbuf) - CGEN_CPU_DESC cd; - const CGEN_INSN *insns; - int count; - int entsize; - CGEN_INSN_LIST **htable; - CGEN_INSN_LIST *hentbuf; -{ - int i; - - for (i = count - 1; i >= 0; --i, ++hentbuf) - { - unsigned int hash; - const CGEN_INSN *insn = &insns[i]; - - if (! (* cd->asm_hash_p) (insn)) - continue; - hash = (* cd->asm_hash) (CGEN_INSN_MNEMONIC (insn)); - hentbuf->next = htable[hash]; - hentbuf->insn = insn; - htable[hash] = hentbuf; - } - - return hentbuf; -} - -/* Subroutine of build_asm_hash_table to add INSNS to the hash table. - This function is identical to hash_insn_array except the insns are - in a list. */ - -static CGEN_INSN_LIST * -hash_insn_list (cd, insns, htable, hentbuf) - CGEN_CPU_DESC cd; - const CGEN_INSN_LIST *insns; - CGEN_INSN_LIST **htable; - CGEN_INSN_LIST *hentbuf; -{ - const CGEN_INSN_LIST *ilist; - - for (ilist = insns; ilist != NULL; ilist = ilist->next, ++ hentbuf) - { - unsigned int hash; - - if (! (* cd->asm_hash_p) (ilist->insn)) - continue; - hash = (* cd->asm_hash) (CGEN_INSN_MNEMONIC (ilist->insn)); - hentbuf->next = htable[hash]; - hentbuf->insn = ilist->insn; - htable[hash] = hentbuf; - } - - return hentbuf; -} - -/* Build the assembler instruction hash table. */ - -static void -build_asm_hash_table (cd) - CGEN_CPU_DESC cd; -{ - int count = cgen_insn_count (cd) + cgen_macro_insn_count (cd); - CGEN_INSN_TABLE *insn_table = &cd->insn_table; - CGEN_INSN_TABLE *macro_insn_table = &cd->macro_insn_table; - unsigned int hash_size = cd->asm_hash_size; - CGEN_INSN_LIST *hash_entry_buf; - CGEN_INSN_LIST **asm_hash_table; - CGEN_INSN_LIST *asm_hash_table_entries; - - /* The space allocated for the hash table consists of two parts: - the hash table and the hash lists. */ - - asm_hash_table = (CGEN_INSN_LIST **) - xmalloc (hash_size * sizeof (CGEN_INSN_LIST *)); - memset (asm_hash_table, 0, hash_size * sizeof (CGEN_INSN_LIST *)); - asm_hash_table_entries = hash_entry_buf = (CGEN_INSN_LIST *) - xmalloc (count * sizeof (CGEN_INSN_LIST)); - - /* Add compiled in insns. - Don't include the first one as it is a reserved entry. */ - /* ??? It was the end of all hash chains, and also the special - "invalid insn" marker. May be able to do it differently now. */ - - hash_entry_buf = hash_insn_array (cd, - insn_table->init_entries + 1, - insn_table->num_init_entries - 1, - insn_table->entry_size, - asm_hash_table, hash_entry_buf); - - /* Add compiled in macro-insns. */ - - hash_entry_buf = hash_insn_array (cd, macro_insn_table->init_entries, - macro_insn_table->num_init_entries, - macro_insn_table->entry_size, - asm_hash_table, hash_entry_buf); - - /* Add runtime added insns. - Later added insns will be prefered over earlier ones. */ - - hash_entry_buf = hash_insn_list (cd, insn_table->new_entries, - asm_hash_table, hash_entry_buf); - - /* Add runtime added macro-insns. */ - - hash_insn_list (cd, macro_insn_table->new_entries, - asm_hash_table, hash_entry_buf); - - cd->asm_hash_table = asm_hash_table; - cd->asm_hash_table_entries = asm_hash_table_entries; -} - -/* Return the first entry in the hash list for INSN. */ - -CGEN_INSN_LIST * -cgen_asm_lookup_insn (cd, insn) - CGEN_CPU_DESC cd; - const char *insn; -{ - unsigned int hash; - - if (cd->asm_hash_table == NULL) - build_asm_hash_table (cd); - - hash = (* cd->asm_hash) (insn); - return cd->asm_hash_table[hash]; -} - -/* Keyword parser. - The result is NULL upon success or an error message. - If successful, *STRP is updated to point passed the keyword. - - ??? At present we have a static notion of how to pick out a keyword. - Later we can allow a target to customize this if necessary [say by - recording something in the keyword table]. */ - -const char * -cgen_parse_keyword (cd, strp, keyword_table, valuep) - CGEN_CPU_DESC cd; - const char **strp; - CGEN_KEYWORD *keyword_table; - long *valuep; -{ - const CGEN_KEYWORD_ENTRY *ke; - char buf[256]; - const char *p,*start; - - p = start = *strp; - - /* 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 (((p - start) < (int) sizeof (buf)) - && (isalnum ((unsigned char) *p) || *p == '_')) - ++p; - - if (p - start >= (int) sizeof (buf)) - return _("unrecognized keyword/register name"); - - memcpy (buf, start, p - start); - buf[p - start] = 0; - - ke = cgen_keyword_lookup_name (keyword_table, buf); - - if (ke != NULL) - { - *valuep = ke->value; - /* Don't advance pointer if we recognized the null keyword. */ - if (ke->name[0] != 0) - *strp = p; - return NULL; - } - - return "unrecognized keyword/register name"; -} - -/* Parse a small signed integer parser. - ??? VALUEP is not a bfd_vma * on purpose, though this is confusing. - Note that if the caller expects a bfd_vma result, it should call - cgen_parse_address. */ - -const char * -cgen_parse_signed_integer (cd, strp, opindex, valuep) - CGEN_CPU_DESC cd; - const char **strp; - int opindex; - long *valuep; -{ - bfd_vma value; - enum cgen_parse_operand_result result; - const char *errmsg; - - errmsg = (* cd->parse_operand_fn) - (cd, CGEN_PARSE_OPERAND_INTEGER, strp, opindex, BFD_RELOC_NONE, - &result, &value); - /* FIXME: Examine `result'. */ - if (!errmsg) - *valuep = value; - return errmsg; -} - -/* Parse a small unsigned integer parser. - ??? VALUEP is not a bfd_vma * on purpose, though this is confusing. - Note that if the caller expects a bfd_vma result, it should call - cgen_parse_address. */ - -const char * -cgen_parse_unsigned_integer (cd, strp, opindex, valuep) - CGEN_CPU_DESC cd; - const char **strp; - int opindex; - unsigned long *valuep; -{ - bfd_vma value; - enum cgen_parse_operand_result result; - const char *errmsg; - - errmsg = (* cd->parse_operand_fn) - (cd, CGEN_PARSE_OPERAND_INTEGER, strp, opindex, BFD_RELOC_NONE, - &result, &value); - /* FIXME: Examine `result'. */ - if (!errmsg) - *valuep = value; - return errmsg; -} - -/* Address parser. */ - -const char * -cgen_parse_address (cd, strp, opindex, opinfo, resultp, valuep) - CGEN_CPU_DESC cd; - const char **strp; - int opindex; - int opinfo; - enum cgen_parse_operand_result *resultp; - bfd_vma *valuep; -{ - bfd_vma value; - enum cgen_parse_operand_result result_type; - const char *errmsg; - - errmsg = (* cd->parse_operand_fn) - (cd, CGEN_PARSE_OPERAND_ADDRESS, strp, opindex, opinfo, - &result_type, &value); - /* FIXME: Examine `result'. */ - if (!errmsg) - { - if (resultp != NULL) - *resultp = result_type; - *valuep = value; - } - return errmsg; -} - -/* Signed integer validation routine. */ - -const char * -cgen_validate_signed_integer (value, min, max) - long value, min, max; -{ - if (value < min || value > max) - { - static char buf[100]; - - /* xgettext:c-format */ - sprintf (buf, _("operand out of range (%ld not between %ld and %ld)"), - value, min, max); - return buf; - } - - return NULL; -} - -/* Unsigned integer validation routine. - Supplying `min' here may seem unnecessary, but we also want to handle - cases where min != 0 (and max > LONG_MAX). */ - -const char * -cgen_validate_unsigned_integer (value, min, max) - unsigned long value, min, max; -{ - if (value < min || value > max) - { - static char buf[100]; - - /* xgettext:c-format */ - sprintf (buf, _("operand out of range (%lu not between %lu and %lu)"), - value, min, max); - return buf; - } - - return NULL; -} |