backout m32rx stuff, not ready to be checked in

This commit is contained in:
Doug Evans 1998-01-16 00:26:51 +00:00
parent 3bdf92bdc8
commit 853713a768
8 changed files with 1097 additions and 1530 deletions

View file

@ -56,10 +56,13 @@ static void insert_insn_normal
static CGEN_INLINE void
insert_normal (value, attrs, start, length, shift, total_length, buffer)
long value;
long value;
unsigned int attrs;
int start, length, shift, total_length;
char *buffer;
int start;
int length;
int shift;
int total_length;
char * buffer;
{
bfd_vma x;
@ -70,7 +73,7 @@ insert_normal (value, attrs, start, length, shift, total_length, buffer)
switch (total_length)
{
case 8:
x = *(unsigned char *) buffer;
x = * (unsigned char *) buffer;
break;
case 16:
if (CGEN_CURRENT_ENDIAN == CGEN_ENDIAN_BIG)
@ -99,7 +102,7 @@ insert_normal (value, attrs, start, length, shift, total_length, buffer)
switch (total_length)
{
case 8:
*buffer = value;
* buffer = value;
break;
case 16:
if (CGEN_CURRENT_ENDIAN == CGEN_ENDIAN_BIG)
@ -120,6 +123,404 @@ insert_normal (value, attrs, start, length, shift, total_length, buffer)
}
/* -- assembler routines inserted here */
/* -- asm.c */
/* Handle shigh(), high(). */
static const char *
parse_h_hi16 (strp, opindex, min, max, valuep)
const char **strp;
int opindex;
unsigned long min, max;
unsigned long *valuep;
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
/* FIXME: Need # in assembler syntax (means '#' is optional). */
if (**strp == '#')
++*strp;
if (strncmp (*strp, "high(", 5) == 0)
{
*strp += 5;
errmsg = cgen_parse_address (strp, opindex, BFD_RELOC_M32R_HI16_ULO,
&result_type, valuep);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
*valuep >>= 16;
return errmsg;
}
else if (strncmp (*strp, "shigh(", 6) == 0)
{
*strp += 6;
errmsg = cgen_parse_address (strp, opindex, BFD_RELOC_M32R_HI16_SLO,
&result_type, valuep);
if (**strp != ')')
return "missing `)'";
++*strp;
if (errmsg == NULL
&& result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
*valuep = (*valuep >> 16) + ((*valuep) & 0x8000 ? 1 : 0);
return errmsg;
}
return cgen_parse_unsigned_integer (strp, opindex, min, max, valuep);
}
/* Handle low() in a signed context. Also handle sda().
The signedness of the value doesn't matter to low(), but this also
handles the case where low() isn't present. */
static const char *
parse_h_slo16 (strp, opindex, min, max, valuep)
const char **strp;
int opindex;
long min, max;
long *valuep;
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
/* FIXME: Need # in assembler syntax (means '#' is optional). */
if (**strp == '#')
++*strp;
if (strncmp (*strp, "low(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (strp, opindex, BFD_RELOC_M32R_LO16,
&result_type, valuep);
if (**strp != ')')
return "missing `)'";
++*strp;
return errmsg;
}
if (strncmp (*strp, "sda(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (strp, opindex, BFD_RELOC_M32R_SDA16, NULL, valuep);
if (**strp != ')')
return "missing `)'";
++*strp;
return errmsg;
}
return cgen_parse_signed_integer (strp, opindex, min, max, valuep);
}
/* Handle low() in an unsigned context.
The signedness of the value doesn't matter to low(), but this also
handles the case where low() isn't present. */
static const char *
parse_h_ulo16 (strp, opindex, min, max, valuep)
const char **strp;
int opindex;
unsigned long min, max;
unsigned long *valuep;
{
const char *errmsg;
enum cgen_parse_operand_result result_type;
/* FIXME: Need # in assembler syntax (means '#' is optional). */
if (**strp == '#')
++*strp;
if (strncmp (*strp, "low(", 4) == 0)
{
*strp += 4;
errmsg = cgen_parse_address (strp, opindex, BFD_RELOC_M32R_LO16,
&result_type, valuep);
if (**strp != ')')
return "missing `)'";
++*strp;
return errmsg;
}
return cgen_parse_unsigned_integer (strp, opindex, min, max, valuep);
}
/* -- */
/* 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.
*/
CGEN_INLINE const char *
m32r_cgen_parse_operand (opindex, strp, fields)
int opindex;
const char ** strp;
CGEN_FIELDS * fields;
{
const char * errmsg;
switch (opindex)
{
case M32R_OPERAND_SR :
errmsg = cgen_parse_keyword (strp, & m32r_cgen_opval_h_gr, & fields->f_r2);
break;
case M32R_OPERAND_DR :
errmsg = cgen_parse_keyword (strp, & m32r_cgen_opval_h_gr, & fields->f_r1);
break;
case M32R_OPERAND_SRC1 :
errmsg = cgen_parse_keyword (strp, & m32r_cgen_opval_h_gr, & fields->f_r1);
break;
case M32R_OPERAND_SRC2 :
errmsg = cgen_parse_keyword (strp, & m32r_cgen_opval_h_gr, & fields->f_r2);
break;
case M32R_OPERAND_SCR :
errmsg = cgen_parse_keyword (strp, & m32r_cgen_opval_h_cr, & fields->f_r2);
break;
case M32R_OPERAND_DCR :
errmsg = cgen_parse_keyword (strp, & m32r_cgen_opval_h_cr, & fields->f_r1);
break;
case M32R_OPERAND_SIMM8 :
errmsg = cgen_parse_signed_integer (strp, 7, -128, 127, &fields->f_simm8);
break;
case M32R_OPERAND_SIMM16 :
errmsg = cgen_parse_signed_integer (strp, 8, -32768, 32767, &fields->f_simm16);
break;
case M32R_OPERAND_UIMM4 :
errmsg = cgen_parse_unsigned_integer (strp, 9, 0, 15, &fields->f_uimm4);
break;
case M32R_OPERAND_UIMM5 :
errmsg = cgen_parse_unsigned_integer (strp, 10, 0, 31, &fields->f_uimm5);
break;
case M32R_OPERAND_UIMM16 :
errmsg = cgen_parse_unsigned_integer (strp, 11, 0, 65535, &fields->f_uimm16);
break;
case M32R_OPERAND_HI16 :
errmsg = parse_h_hi16 (strp, 12, 0, 65535, &fields->f_hi16);
break;
case M32R_OPERAND_SLO16 :
errmsg = parse_h_slo16 (strp, 13, -32768, 32767, &fields->f_simm16);
break;
case M32R_OPERAND_ULO16 :
errmsg = parse_h_ulo16 (strp, 14, 0, 65535, &fields->f_uimm16);
break;
case M32R_OPERAND_UIMM24 :
errmsg = cgen_parse_address (strp, 15, 0, NULL, & fields->f_uimm24);
break;
case M32R_OPERAND_DISP8 :
errmsg = cgen_parse_address (strp, 16, 0, NULL, & fields->f_disp8);
break;
case M32R_OPERAND_DISP16 :
errmsg = cgen_parse_address (strp, 17, 0, NULL, & fields->f_disp16);
break;
case M32R_OPERAND_DISP24 :
errmsg = cgen_parse_address (strp, 18, 0, NULL, & fields->f_disp24);
break;
default :
fprintf (stderr, "Unrecognized field %d while parsing.\n", opindex);
abort ();
}
return errmsg;
}
/* Main entry point for operand insertion.
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. It's also needed by GAS to insert operands that couldn't be
resolved during parsing.
*/
CGEN_INLINE void
m32r_cgen_insert_operand (opindex, fields, buffer)
int opindex;
CGEN_FIELDS * fields;
cgen_insn_t * buffer;
{
switch (opindex)
{
case M32R_OPERAND_SR :
insert_normal (fields->f_r2, 0|(1<<CGEN_OPERAND_UNSIGNED), 12, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_DR :
insert_normal (fields->f_r1, 0|(1<<CGEN_OPERAND_UNSIGNED), 4, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_SRC1 :
insert_normal (fields->f_r1, 0|(1<<CGEN_OPERAND_UNSIGNED), 4, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_SRC2 :
insert_normal (fields->f_r2, 0|(1<<CGEN_OPERAND_UNSIGNED), 12, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_SCR :
insert_normal (fields->f_r2, 0|(1<<CGEN_OPERAND_UNSIGNED), 12, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_DCR :
insert_normal (fields->f_r1, 0|(1<<CGEN_OPERAND_UNSIGNED), 4, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_SIMM8 :
insert_normal (fields->f_simm8, 0, 8, 8, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_SIMM16 :
insert_normal (fields->f_simm16, 0, 16, 16, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_UIMM4 :
insert_normal (fields->f_uimm4, 0|(1<<CGEN_OPERAND_UNSIGNED), 12, 4, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_UIMM5 :
insert_normal (fields->f_uimm5, 0|(1<<CGEN_OPERAND_UNSIGNED), 11, 5, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_UIMM16 :
insert_normal (fields->f_uimm16, 0|(1<<CGEN_OPERAND_UNSIGNED), 16, 16, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_HI16 :
insert_normal (fields->f_hi16, 0|(1<<CGEN_OPERAND_SIGN_OPT)|(1<<CGEN_OPERAND_UNSIGNED), 16, 16, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_SLO16 :
insert_normal (fields->f_simm16, 0, 16, 16, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_ULO16 :
insert_normal (fields->f_uimm16, 0|(1<<CGEN_OPERAND_UNSIGNED), 16, 16, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_UIMM24 :
insert_normal (fields->f_uimm24, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR)|(1<<CGEN_OPERAND_UNSIGNED), 8, 24, 0, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_DISP8 :
insert_normal (fields->f_disp8, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), 8, 8, 2, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_DISP16 :
insert_normal (fields->f_disp16, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), 16, 16, 2, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
case M32R_OPERAND_DISP24 :
insert_normal (fields->f_disp24, 0|(1<<CGEN_OPERAND_RELAX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), 8, 24, 2, CGEN_FIELDS_BITSIZE (fields), buffer);
break;
default :
fprintf (stderr, "Unrecognized field %d while building insn.\n",
opindex);
abort ();
}
}
/* Main entry point for operand validation.
This function is called from GAS when it has fully resolved an operand
that couldn't be resolved during parsing.
The result is NULL for success or an error message (which may be
computed into a static buffer).
*/
CGEN_INLINE const char *
m32r_cgen_validate_operand (opindex, fields)
int opindex;
const CGEN_FIELDS * fields;
{
const char * errmsg = NULL;
switch (opindex)
{
case M32R_OPERAND_SR :
/* nothing to do */
break;
case M32R_OPERAND_DR :
/* nothing to do */
break;
case M32R_OPERAND_SRC1 :
/* nothing to do */
break;
case M32R_OPERAND_SRC2 :
/* nothing to do */
break;
case M32R_OPERAND_SCR :
/* nothing to do */
break;
case M32R_OPERAND_DCR :
/* nothing to do */
break;
case M32R_OPERAND_SIMM8 :
errmsg = cgen_validate_signed_integer (fields->f_simm8, -128, 127);
break;
case M32R_OPERAND_SIMM16 :
errmsg = cgen_validate_signed_integer (fields->f_simm16, -32768, 32767);
break;
case M32R_OPERAND_UIMM4 :
errmsg = cgen_validate_unsigned_integer (fields->f_uimm4, 0, 15);
break;
case M32R_OPERAND_UIMM5 :
errmsg = cgen_validate_unsigned_integer (fields->f_uimm5, 0, 31);
break;
case M32R_OPERAND_UIMM16 :
errmsg = cgen_validate_unsigned_integer (fields->f_uimm16, 0, 65535);
break;
case M32R_OPERAND_HI16 :
errmsg = cgen_validate_unsigned_integer (fields->f_hi16, 0, 65535);
break;
case M32R_OPERAND_SLO16 :
errmsg = cgen_validate_signed_integer (fields->f_simm16, -32768, 32767);
break;
case M32R_OPERAND_ULO16 :
errmsg = cgen_validate_unsigned_integer (fields->f_uimm16, 0, 65535);
break;
case M32R_OPERAND_UIMM24 :
/* nothing to do */
break;
case M32R_OPERAND_DISP8 :
/* nothing to do */
break;
case M32R_OPERAND_DISP16 :
/* nothing to do */
break;
case M32R_OPERAND_DISP24 :
/* nothing to do */
break;
default :
fprintf (stderr, "Unrecognized field %d while validating operand.\n",
opindex);
abort ();
}
return errmsg;
}
cgen_parse_fn * m32r_cgen_parse_handlers[] =
{ 0, /* default */
parse_insn_normal,
};
cgen_insert_fn * m32r_cgen_insert_handlers[] =
{ 0, /* default */
insert_insn_normal,
};
void
m32r_cgen_init_asm (mach, endian)
int mach;
enum cgen_endian endian;
{
m32r_cgen_init_tables (mach);
cgen_set_cpu (& m32r_cgen_opcode_data, mach, endian);
cgen_asm_init ();
}
/* Default insn parser.
@ -137,25 +538,25 @@ insert_normal (value, attrs, start, length, shift, total_length, buffer)
static const char *
parse_insn_normal (insn, strp, fields)
const CGEN_INSN *insn;
const char **strp;
CGEN_FIELDS *fields;
const CGEN_INSN * insn;
const char ** strp;
CGEN_FIELDS * fields;
{
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
const char *str = *strp;
const char *errmsg;
const char *p;
const unsigned char *syn;
const CGEN_SYNTAX * syntax = CGEN_INSN_SYNTAX (insn);
const char * str = *strp;
const char * errmsg;
const char * p;
const unsigned char * syn;
#ifdef CGEN_MNEMONIC_OPERANDS
int past_opcode_p;
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. */
p = CGEN_INSN_MNEMONIC (insn);
while (*p && *p == *str)
++p, ++str;
if (*p || (*str && !isspace (*str)))
while (* p && * p == * str)
++ p, ++ str;
if (* p || (* str && !isspace (* str)))
return "unrecognized instruction";
CGEN_INIT_PARSE ();
@ -167,24 +568,27 @@ parse_insn_normal (insn, strp, fields)
/* 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 (CGEN_INSN_SYNTAX (insn));
/* Mnemonics come first for now, ensure valid string. */
if (! CGEN_SYNTAX_MNEMONIC_P (*syn))
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
abort ();
++syn;
while (*syn != 0)
while (* syn != 0)
{
/* Non operand chars must match exactly. */
/* FIXME: Need to better handle whitespace. */
if (CGEN_SYNTAX_CHAR_P (*syn))
if (CGEN_SYNTAX_CHAR_P (* syn))
{
if (*str == CGEN_SYNTAX_CHAR (*syn))
if (*str == CGEN_SYNTAX_CHAR (* syn))
{
#ifdef CGEN_MNEMONIC_OPERANDS
if (*syn == ' ')
if (* syn == ' ')
past_opcode_p = 1;
#endif
++syn;
++str;
++ syn;
++ str;
}
else
{
@ -202,20 +606,20 @@ parse_insn_normal (insn, strp, fields)
return errmsg;
/* Done with this operand, continue with next one. */
++syn;
++ syn;
}
/* If we're at the end of the syntax string, we're done. */
if (*syn == '\0')
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;
while (isspace (* str))
++ str;
if (*str != '\0')
if (* str != '\0')
return "junk at end of line"; /* FIXME: would like to include `str' */
return NULL;
@ -230,13 +634,13 @@ parse_insn_normal (insn, strp, fields)
static void
insert_insn_normal (insn, fields, buffer)
const CGEN_INSN *insn;
CGEN_FIELDS *fields;
cgen_insn_t *buffer;
const CGEN_INSN * insn;
CGEN_FIELDS * fields;
cgen_insn_t * buffer;
{
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
bfd_vma value;
const unsigned char *syn;
const CGEN_SYNTAX * syntax = CGEN_INSN_SYNTAX (insn);
bfd_vma value;
const unsigned char * syn;
CGEN_INIT_INSERT ();
value = CGEN_INSN_VALUE (insn);
@ -251,7 +655,7 @@ insert_insn_normal (insn, fields, buffer)
switch (min (CGEN_BASE_INSN_BITSIZE, CGEN_FIELDS_BITSIZE (fields)))
{
case 8:
*buffer = value;
* buffer = value;
break;
case 16:
if (CGEN_CURRENT_ENDIAN == CGEN_ENDIAN_BIG)
@ -273,9 +677,9 @@ insert_insn_normal (insn, fields, buffer)
/* ??? Rather than scanning the syntax string again, we could store
in `fields' a null terminated list of the fields that are present. */
for (syn = CGEN_SYNTAX_STRING (syntax); *syn != '\0'; ++syn)
for (syn = CGEN_SYNTAX_STRING (syntax); * syn != '\0'; ++ syn)
{
if (CGEN_SYNTAX_CHAR_P (*syn))
if (CGEN_SYNTAX_CHAR_P (* syn))
continue;
m32r_cgen_insert_operand (CGEN_SYNTAX_FIELD (*syn), fields, buffer);
@ -292,17 +696,17 @@ insert_insn_normal (insn, fields, buffer)
const CGEN_INSN *
m32r_cgen_assemble_insn (str, fields, buf, errmsg)
const char *str;
CGEN_FIELDS *fields;
cgen_insn_t *buf;
char **errmsg;
const char * str;
CGEN_FIELDS * fields;
cgen_insn_t * buf;
char ** errmsg;
{
const char *start;
CGEN_INSN_LIST *ilist;
const char * start;
CGEN_INSN_LIST * ilist;
/* Skip leading white space. */
while (isspace (*str))
++str;
while (isspace (* str))
++ str;
/* The instructions are stored in hashed lists.
Get the first in the list. */
@ -343,9 +747,9 @@ m32r_cgen_assemble_insn (str, fields, buf, errmsg)
inline functions but of course that would only work for gcc. Since
we're machine generating some code we could do that here too. Maybe
later. */
if (! (*CGEN_PARSE_FN (insn)) (insn, &str, fields))
if (! CGEN_PARSE_FN (insn) (insn, & str, fields))
{
(*CGEN_INSERT_FN (insn)) (insn, fields, buf);
CGEN_INSERT_FN (insn) (insn, fields, buf);
/* It is up to the caller to actually output the insn and any
queued relocs. */
return insn;
@ -376,12 +780,12 @@ m32r_cgen_assemble_insn (str, fields, buf, errmsg)
void
m32r_cgen_asm_hash_keywords (opvals)
CGEN_KEYWORD *opvals;
CGEN_KEYWORD * opvals;
{
CGEN_KEYWORD_SEARCH search = cgen_keyword_search_init (opvals, NULL);
const CGEN_KEYWORD_ENTRY *ke;
const CGEN_KEYWORD_ENTRY * ke;
while ((ke = cgen_keyword_search_next (&search)) != NULL)
while ((ke = cgen_keyword_search_next (& search)) != NULL)
{
#if 0 /* Unnecessary, should be done in the search routine. */
if (! m32r_cgen_opval_supported (ke))