/* m88k.c -- Assembler for the Motorola 88000
Contributed by Devon Bowen of Buffalo University
and Torbjorn Granlund of the Swedish Institute of Computer Science.
- Copyright (C) 1989, 1990, 1991, 1993 Free Software Foundation, Inc.
+ Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999,
+ 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GAS; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GAS; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
-#include <ctype.h>
#include "as.h"
+#include "safe-ctype.h"
+#include "subsegs.h"
#include "m88k-opcode.h"
struct field_val_assoc
static int calcop PARAMS ((struct m88k_opcode *format,
char *param, struct m88k_insn *insn));
-
extern char *myname;
static struct hash_control *op_hash = NULL;
int md_seg_align = 7;
/* These chars start a comment anywhere in a source file (except inside
- another comment */
+ another comment. */
const char comment_chars[] = ";";
-/* These chars only start a comment at the beginning of a line. */
+/* These chars only start a comment at the beginning of a line. */
const char line_comment_chars[] = "#";
const char line_separator_chars[] = "";
{"def", s_set, 0},
{"dfloat", float_cons, 'd'},
{"ffloat", float_cons, 'f'},
- {"global", s_globl, 0},
{"half", cons, 2},
{"bss", s_lcomm, 1},
{"string", stringer, 0},
{"word", cons, 4},
/* Force set to be treated as an instruction. */
{"set", NULL, 0},
- {0}
+ {".set", s_set, 0},
+ {NULL, NULL, 0}
};
void
const char *retval = NULL;
unsigned int i = 0;
- /* initialize hash table */
-
+ /* Initialize hash table. */
op_hash = hash_new ();
- /* loop until you see the end of the list */
-
while (*m88k_opcodes[i].name)
{
char *name = m88k_opcodes[i].name;
- /* hash each mnemonic and record its position */
-
+ /* Hash each mnemonic and record its position. */
retval = hash_insert (op_hash, name, &m88k_opcodes[i]);
if (retval != NULL)
- as_fatal ("Can't hash instruction '%s':%s",
+ as_fatal (_("Can't hash instruction '%s':%s"),
m88k_opcodes[i].name, retval);
- /* skip to next unique mnemonic or end of list */
-
+ /* Skip to next unique mnemonic or end of list. */
for (i++; !strcmp (m88k_opcodes[i].name, name); i++)
;
}
struct option md_longopts[] = {
{NULL, no_argument, NULL, 0}
};
-size_t md_longopts_size = sizeof(md_longopts);
+size_t md_longopts_size = sizeof (md_longopts);
int
md_parse_option (c, arg)
- int c;
- char *arg;
+ int c ATTRIBUTE_UNUSED;
+ char *arg ATTRIBUTE_UNUSED;
{
return 0;
}
void
md_show_usage (stream)
- FILE *stream;
+ FILE *stream ATTRIBUTE_UNUSED;
{
}
\f
assert (op);
- /* skip over instruction to find parameters */
-
- for (param = op; *param != 0 && !isspace (*param); param++)
+ /* Skip over instruction to find parameters. */
+ for (param = op; *param != 0 && !ISSPACE (*param); param++)
;
c = *param;
*param++ = '\0';
- /* try to find the instruction in the hash table */
-
+ /* Try to find the instruction in the hash table. */
if ((format = (struct m88k_opcode *) hash_find (op_hash, op)) == NULL)
{
- as_bad ("Invalid mnemonic '%s'", op);
+ as_bad (_("Invalid mnemonic '%s'"), op);
return;
}
- /* try parsing this instruction into insn */
-
+ /* Try parsing this instruction into insn. */
insn.exp.X_add_symbol = 0;
insn.exp.X_op_symbol = 0;
insn.exp.X_add_number = 0;
while (!calcop (format, param, &insn))
{
- /* if it doesn't parse try the next instruction */
-
+ /* If it doesn't parse try the next instruction. */
if (!strcmp (format[0].name, format[1].name))
format++;
else
{
- as_fatal ("Parameter syntax error");
+ as_fatal (_("Parameter syntax error"));
return;
}
}
- /* grow the current frag and plop in the opcode */
-
+ /* Grow the current frag and plop in the opcode. */
thisfrag = frag_more (4);
md_number_to_chars (thisfrag, insn.opcode, 4);
- /* if this instruction requires labels mark it for later */
-
+ /* If this instruction requires labels mark it for later. */
switch (insn.reloc)
{
case NO_RELOC:
break;
default:
- as_fatal ("Unknown relocation type");
+ as_fatal (_("Unknown relocation type"));
break;
}
}
case '?':
/* Having this here repeats the warning somtimes.
But can't we stand that? */
- as_warn ("Use of obsolete instruction");
+ as_warn (_("Use of obsolete instruction"));
break;
}
}
unsigned int val;
char *save_ptr;
- if (!strncmp (param, "hi16", 4) && !isalnum (param[4]))
+ if (!strncmp (param, "hi16", 4) && !ISALNUM (param[4]))
{
reloc = RELOC_HI16;
param += 4;
}
- else if (!strncmp (param, "lo16", 4) && !isalnum (param[4]))
+ else if (!strncmp (param, "lo16", 4) && !ISALNUM (param[4]))
{
reloc = RELOC_LO16;
param += 4;
}
- else if (!strncmp (param, "iw16", 4) && !isalnum (param[4]))
+ else if (!strncmp (param, "iw16", 4) && !ISALNUM (param[4]))
{
reloc = RELOC_IW16;
param += 4;
{
/* Warn about too big expressions if not surrounded by xx16. */
if (val > 0xffff)
- as_warn ("Expression truncated to 16 bits");
+ as_warn (_("Expression truncated to 16 bits"));
}
if (reloc == RELOC_HI16)
if (val >= 32)
{
- as_warn ("Expression truncated to 5 bits");
+ as_warn (_("Expression truncated to 5 bits"));
val %= 32;
}
}
{
unsigned int val;
- if (isdigit (*param))
+ if (ISDIGIT (*param))
{
param = getval (param, &val);
if (val >= 32)
{
- as_warn ("Expression truncated to 5 bits");
+ as_warn (_("Expression truncated to 5 bits"));
val %= 32;
}
}
else
{
- if (isupper (*param))
- *param = tolower (*param);
-
- if (isupper (param[1]))
- param[1] = tolower (param[1]);
+ param[0] = TOLOWER (param[0]);
+ param[1] = TOLOWER (param[1]);
param = match_name (param, cndmsk, valp);
{
unsigned offset;
- if (isalpha (param[0]))
+ if (ISALPHA (param[0]))
{
- if (isupper (param[0]))
- param[0] = tolower (param[0]);
- if (isupper (param[1]))
- param[1] = tolower (param[1]);
+ param[0] = TOLOWER (param[0]);
+ param[1] = TOLOWER (param[1]);
param = match_name (param, cmpslot, offsetp);
input_line_pointer = save_ptr;
if (val >= 1 << 9)
- as_warn ("Expression truncated to 9 bits");
+ as_warn (_("Expression truncated to 9 bits"));
*valp = val % (1 << 9);
input_line_pointer = save_ptr;
if (val & 0x3)
- as_warn ("Removed lower 2 bits of expression");
+ as_warn (_("Removed lower 2 bits of expression"));
*valp = val;
- return(param);
+ return (param);
}
#define hexval(z) \
- (isdigit (z) ? (z) - '0' : \
- islower (z) ? (z) - 'a' + 10 : \
- isupper (z) ? (z) - 'A' + 10 : -1)
+ (ISDIGIT (z) ? (z) - '0' : \
+ ISLOWER (z) ? (z) - 'a' + 10 : \
+ ISUPPER (z) ? (z) - 'A' + 10 : -1)
static char *
getval (param, valp)
number_to_chars_bigendian (buf, val, nbytes);
}
-#if 0
-
-/* This routine is never called. What is it for?
- Ian Taylor, Cygnus Support 13 Jul 1993 */
-
-void
-md_number_to_imm (buf, val, nbytes, fixP, seg_type)
- unsigned char *buf;
- unsigned int val;
- int nbytes;
- fixS *fixP;
- int seg_type;
-{
- if (seg_type != N_TEXT || fixP->fx_r_type == NO_RELOC)
- {
- switch (nbytes)
- {
- case 4:
- *buf++ = val >> 24;
- *buf++ = val >> 16;
- case 2:
- *buf++ = val >> 8;
- case 1:
- *buf = val;
- break;
-
- default:
- abort ();
- }
- return;
- }
-
- switch (fixP->fx_r_type)
- {
- case RELOC_IW16:
- buf[2] = val >> 8;
- buf[3] = val;
- break;
-
- case RELOC_LO16:
- buf[0] = val >> 8;
- buf[1] = val;
- break;
-
- case RELOC_HI16:
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- break;
-
- case RELOC_PC16:
- val += 4;
- buf[0] = val >> 10;
- buf[1] = val >> 2;
- break;
-
- case RELOC_PC26:
- val += 4;
- buf[0] |= (val >> 26) & 0x03;
- buf[1] = val >> 18;
- buf[2] = val >> 10;
- buf[3] = val >> 2;
- break;
-
- case RELOC_32:
- buf[0] = val >> 24;
- buf[1] = val >> 16;
- buf[2] = val >> 8;
- buf[3] = val;
- break;
-
- default:
- as_fatal ("Bad relocation type");
- break;
- }
-}
-
-#endif /* 0 */
-
void
md_number_to_disp (buf, val, nbytes)
char *buf;
int val;
int nbytes;
{
- as_fatal ("md_number_to_disp not defined");
+ as_fatal (_("md_number_to_disp not defined"));
md_number_to_chars (buf, val, nbytes);
}
int val;
int nbytes;
{
- as_fatal ("md_number_to_field not defined");
+ as_fatal (_("md_number_to_field not defined"));
md_number_to_chars (buf, val, nbytes);
}
LITTLENUM_TYPE words[MAX_LITTLENUMS];
LITTLENUM_TYPE *wordP;
char *t;
- char *atof_ieee ();
switch (type)
{
default:
*sizeP = 0;
- return "Bad call to MD_ATOF()";
+ return _("Bad call to MD_ATOF()");
}
t = atof_ieee (input_line_pointer, type, words);
if (t)
void
md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
char *ptr;
- addressT from_addr, to_addr;
+ addressT from_addr ATTRIBUTE_UNUSED;
+ addressT to_addr ATTRIBUTE_UNUSED;
fragS *frag;
symbolS *to_symbol;
{
void
md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
char *ptr;
- addressT from_addr, to_addr;
+ addressT from_addr ATTRIBUTE_UNUSED;
+ addressT to_addr ATTRIBUTE_UNUSED;
fragS *frag;
symbolS *to_symbol;
{
int
md_estimate_size_before_relax (fragP, segment_type)
- fragS *fragP;
- segT segment_type;
+ fragS *fragP ATTRIBUTE_UNUSED;
+ segT segment_type ATTRIBUTE_UNUSED;
{
- as_fatal ("Relaxation should never occur");
+ as_fatal (_("Relaxation should never occur"));
return (-1);
}
-#if 0
-
-/* As far as I can tell, this routine is never called. What is it
- doing here?
- Ian Taylor, Cygnus Support 13 Jul 1993 */
-
-
-/*
- * Risc relocations are completely different, so it needs
- * this machine dependent routine to emit them.
- */
-void
-emit_relocations (fixP, segment_address_in_file)
- fixS *fixP;
- relax_addressT segment_address_in_file;
-{
- struct reloc_info_m88k ri;
- symbolS *symbolP;
- extern char *next_object_file_charP;
-
- bzero ((char *) &ri, sizeof (ri));
- for (; fixP; fixP = fixP->fx_next)
- {
- if (fixP->fx_r_type >= NO_RELOC)
- {
- fprintf (stderr, "fixP->fx_r_type = %d\n", fixP->fx_r_type);
- abort ();
- }
-
- if ((symbolP = fixP->fx_addsy) != NULL)
- {
- ri.r_address = fixP->fx_frag->fr_address +
- fixP->fx_where - segment_address_in_file;
- if ((symbolP->sy_type & N_TYPE) == N_UNDF)
- {
- ri.r_extern = 1;
- ri.r_symbolnum = symbolP->sy_number;
- }
- else
- {
- ri.r_extern = 0;
- ri.r_symbolnum = symbolP->sy_type & N_TYPE;
- }
- if (symbolP && symbolP->sy_frag)
- {
- ri.r_addend = symbolP->sy_frag->fr_address;
- }
- ri.r_type = fixP->fx_r_type;
- if (fixP->fx_pcrel)
- {
- ri.r_addend -= ri.r_address;
- }
- else
- {
- ri.r_addend = fixP->fx_addnumber;
- }
-
- append (&next_object_file_charP, (char *) &ri, sizeof (ri));
- }
- }
-}
-
-#endif /* 0 */
-
-#if 0
-
-/* This routine can be subsumed by s_lcomm in read.c.
- Ian Taylor, Cygnus Support 13 Jul 1993 */
-
-
-static void
-s_bss ()
-{
- char *name;
- char c;
- char *p;
- int temp, bss_align;
- symbolS *symbolP;
-
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- as_warn ("Expected comma after name");
- ignore_rest_of_line ();
- return;
- }
- input_line_pointer++;
- if ((temp = get_absolute_expression ()) < 0)
- {
- as_warn ("BSS length (%d.) <0! Ignored.", temp);
- ignore_rest_of_line ();
- return;
- }
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
- if (*input_line_pointer == ',')
- {
- input_line_pointer++;
- bss_align = get_absolute_expression ();
- }
- else
- bss_align = 0;
-
- if (!S_IS_DEFINED(symbolP)
- || S_GET_SEGMENT(symbolP) == SEG_BSS)
- {
- if (! need_pass_2)
- {
- char *p;
- segT current_seg = now_seg;
- subsegT current_subseg = now_subseg;
-
- subseg_set (SEG_BSS, 1); /* switch to bss */
-
- if (bss_align)
- frag_align (bss_align, 0);
-
- /* detach from old frag */
- if (symbolP->sy_type == N_BSS && symbolP->sy_frag != NULL)
- symbolP->sy_frag->fr_symbol = NULL;
-
- symbolP->sy_frag = frag_now;
- p = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP,
- temp, (char *)0);
- *p = 0;
- S_SET_SEGMENT (symbolP, SEG_BSS);
-
- subseg_set (current_seg, current_subseg);
- }
- }
- else
- {
- as_warn ("Ignoring attempt to re-define symbol %s.", name);
- }
-
- while (!is_end_of_line[*input_line_pointer])
- {
- input_line_pointer++;
- }
-}
-
-#endif /* 0 */
-
#ifdef M88KCOFF
/* These functions are needed if we are linking with obj-coffbfd.c.
file itself. */
void
-md_apply_fix (fixp, val)
- fixS *fixp;
- long val;
+md_apply_fix3 (fixP, valP, seg)
+ fixS *fixP;
+ valueT * valP;
+ segT seg ATTRIBUTE_UNUSED;
{
+ long val = * (long *) valP;
char *buf;
- buf = fixp->fx_frag->fr_literal + fixp->fx_where;
- fixp->fx_offset = 0;
+ buf = fixP->fx_frag->fr_literal + fixP->fx_where;
+ fixP->fx_offset = 0;
- switch (fixp->fx_r_type)
+ switch (fixP->fx_r_type)
{
case RELOC_IW16:
- fixp->fx_offset = val >> 16;
+ fixP->fx_offset = val >> 16;
buf[2] = val >> 8;
buf[3] = val;
break;
case RELOC_LO16:
- fixp->fx_offset = val >> 16;
+ fixP->fx_offset = val >> 16;
buf[0] = val >> 8;
buf[1] = val;
break;
case RELOC_HI16:
- fixp->fx_offset = val >> 16;
+ fixP->fx_offset = val >> 16;
buf[0] = val >> 8;
buf[1] = val;
break;
default:
abort ();
}
+
+ if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
+ fixP->fx_done = 1;
}
/* Where a PC relative offset is calculated from. On the m88k they
/*NOTREACHED*/
}
+/* Fill in rs_align_code fragments. */
+
+void
+m88k_handle_align (fragp)
+ fragS *fragp;
+{
+ static const unsigned char nop_pattern[] = { 0xf4, 0x00, 0x58, 0x00 };
+
+ int bytes;
+ char *p;
+
+ if (fragp->fr_type != rs_align_code)
+ return;
+
+ bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix;
+ p = fragp->fr_literal + fragp->fr_fix;
+
+ if (bytes & 3)
+ {
+ int fix = bytes & 3;
+ memset (p, 0, fix);
+ p += fix;
+ bytes -= fix;
+ fragp->fr_fix += fix;
+ }
+
+ memcpy (p, nop_pattern, 4);
+ fragp->fr_var = 4;
+}
+
#endif /* M88KCOFF */
projects / deliverable / binutils-gdb.git / blobdiff