void
xstormy16_cgen_cpu_close (CGEN_CPU_DESC cd)
{
unsigned int i;
const CGEN_INSN *insns;
if (cd->macro_insn_table.init_entries)
{
insns = cd->macro_insn_table.init_entries;
for (i = 0; i < cd->macro_insn_table.num_init_entries; ++i, ++insns)
if (CGEN_INSN_RX ((insns)))
regfree (CGEN_INSN_RX (insns));
}
if (cd->insn_table.init_entries)
{
insns = cd->insn_table.init_entries;
for (i = 0; i < cd->insn_table.num_init_entries; ++i, ++insns)
if (CGEN_INSN_RX (insns))
regfree (CGEN_INSN_RX (insns));
}
if (cd->macro_insn_table.init_entries)
free ((CGEN_INSN *) cd->macro_insn_table.init_entries);
if (cd->insn_table.init_entries)
free ((CGEN_INSN *) cd->insn_table.init_entries);
if (cd->hw_table.entries)
free ((CGEN_HW_ENTRY *) cd->hw_table.entries);
if (cd->operand_table.entries)
free ((CGEN_HW_ENTRY *) cd->operand_table.entries);
free (cd);
}
const CGEN_INSN *
xstormy16_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 (! xstormy16_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;
}
}
char *
xstormy16_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;
}
}
