/* tc-moxie.c -- Assemble code for moxie
- Copyright 2009
- Free Software Foundation, Inc.
+ Copyright (C) 2009-2021 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
const char line_comment_chars[] = "#";
static int pending_reloc;
-static struct hash_control *opcode_hash_control;
+static htab_t opcode_hash_control;
const pseudo_typeS md_pseudo_table[] =
{
const char FLT_CHARS[] = "rRsSfFdDxXpP";
const char EXP_CHARS[] = "eE";
-static int md_chars_to_number (char *val, int n);
+static valueT md_chars_to_number (char * buf, int n);
+
+/* Byte order. */
+extern int target_big_endian;
void
md_operand (expressionS *op __attribute__((unused)))
{
int count;
const moxie_opc_info_t *opcode;
- opcode_hash_control = hash_new ();
+ opcode_hash_control = str_htab_create ();
/* Insert names into hash table. */
for (count = 0, opcode = moxie_form1_opc_info; count++ < 64; opcode++)
- hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
+ str_hash_insert (opcode_hash_control, opcode->name, opcode, 0);
for (count = 0, opcode = moxie_form2_opc_info; count++ < 4; opcode++)
- hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
+ str_hash_insert (opcode_hash_control, opcode->name, opcode, 0);
for (count = 0, opcode = moxie_form3_opc_info; count++ < 10; opcode++)
- hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
+ str_hash_insert (opcode_hash_control, opcode->name, opcode, 0);
bfd_set_arch_mach (stdoutput, TARGET_ARCH, 0);
}
if (nlen == 0)
as_bad (_("can't find opcode "));
- opcode = (moxie_opc_info_t *) hash_find (opcode_hash_control, op_start);
+ opcode = (moxie_opc_info_t *) str_hash_find (opcode_hash_control, op_start);
*op_end = pend;
if (opcode == NULL)
reg = parse_register_operand (&op_end);
iword += (reg << 8);
if (*op_end != ',')
- as_warn (_("expecting comma delimeted register operands"));
+ as_warn (_("expecting comma delimited register operands"));
op_end++;
op_end = parse_exp_save_ilp (op_end, &arg);
fix_new_exp (frag_now,
- ((p+1) - frag_now->fr_literal),
+ ((p + (target_big_endian ? 1 : 0)) - frag_now->fr_literal),
1,
&arg,
0,
int dest, src;
dest = parse_register_operand (&op_end);
if (*op_end != ',')
- as_warn (_("expecting comma delimeted register operands"0);
+ as_warn (_("expecting comma delimited register operands"));
op_end++;
src = parse_register_operand (&op_end);
iword += (dest << 4) + src;
int a, b;
a = parse_register_operand (&op_end);
if (*op_end != ',')
- as_warn (_("expecting comma delimeted register operands"));
+ as_warn (_("expecting comma delimited register operands"));
op_end++;
if (*op_end != '(')
{
}
op_end++;
if (*op_end != ',')
- as_warn (_("expecting comma delimeted register operands"));
+ as_warn (_("expecting comma delimited register operands"));
op_end++;
b = parse_register_operand (&op_end);
iword += (a << 4) + b;
iword += (a << 4);
}
break;
- case MOXIE_F1_ABi4:
+ case MOXIE_F1_ABi2:
iword = opcode->opcode << 8;
while (ISSPACE (*op_end))
op_end++;
op_end++;
op_end = parse_exp_save_ilp (op_end, &arg);
- offset = frag_more (4);
+ offset = frag_more (2);
fix_new_exp (frag_now,
(offset - frag_now->fr_literal),
- 4,
+ 2,
&arg,
0,
- BFD_RELOC_32);
+ BFD_RELOC_16);
if (*op_end != '(')
{
iword += (a << 4) + b;
}
break;
- case MOXIE_F1_AiB4:
+ case MOXIE_F1_AiB2:
iword = opcode->opcode << 8;
while (ISSPACE (*op_end))
op_end++;
int a, b;
op_end = parse_exp_save_ilp (op_end, &arg);
- offset = frag_more (4);
+ offset = frag_more (2);
fix_new_exp (frag_now,
(offset - frag_now->fr_literal),
- 4,
+ 2,
&arg,
0,
- BFD_RELOC_32);
+ BFD_RELOC_16);
if (*op_end != '(')
{
(p - frag_now->fr_literal),
2,
&arg,
- TRUE,
+ true,
BFD_RELOC_MOXIE_10_PCREL);
}
break;
+ case MOXIE_BAD:
+ iword = 0;
+ while (ISSPACE (*op_end))
+ op_end++;
+ if (*op_end != 0)
+ as_warn (_("extra stuff on line ignored"));
+ break;
default:
abort ();
}
md_number_to_chars (p, iword, 2);
+ dwarf2_emit_insn (2);
while (ISSPACE (*op_end))
op_end++;
of LITTLENUMS emitted is stored in *SIZEP . An error message is
returned, or NULL on OK. */
-char *
+const char *
md_atof (int type, char *litP, int *sizeP)
{
int prec;
return NULL;
}
-\f
-const char *md_shortopts = "";
+
+enum options
+{
+ OPTION_EB = OPTION_MD_BASE,
+ OPTION_EL,
+};
struct option md_longopts[] =
{
- {NULL, no_argument, NULL, 0}
+ { "EB", no_argument, NULL, OPTION_EB},
+ { "EL", no_argument, NULL, OPTION_EL},
+ { NULL, no_argument, NULL, 0}
};
+
size_t md_longopts_size = sizeof (md_longopts);
+\f
+const char *md_shortopts = "";
-/* We have no target specific options yet, so these next
- two functions are empty. */
int
-md_parse_option (int c ATTRIBUTE_UNUSED, char *arg ATTRIBUTE_UNUSED)
+md_parse_option (int c ATTRIBUTE_UNUSED, const char *arg ATTRIBUTE_UNUSED)
{
- return 0;
+ switch (c)
+ {
+ case OPTION_EB:
+ target_big_endian = 1;
+ break;
+ case OPTION_EL:
+ target_big_endian = 0;
+ break;
+ default:
+ return 0;
+ }
+
+ return 1;
}
void
md_show_usage (FILE *stream ATTRIBUTE_UNUSED)
{
+ fprintf (stream, _("\
+ -EB assemble for a big endian system (default)\n\
+ -EL assemble for a little endian system\n"));
}
/* Apply a fixup to the object file. */
void
-md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED,
+md_apply_fix (fixS *fixP ATTRIBUTE_UNUSED,
valueT * valP ATTRIBUTE_UNUSED, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
long val = *valP;
long newval;
long max, min;
- int shift;
max = min = 0;
- shift = 0;
switch (fixP->fx_r_type)
{
case BFD_RELOC_32:
- *buf++ = val >> 24;
- *buf++ = val >> 16;
- *buf++ = val >> 8;
- *buf++ = val >> 0;
+ if (target_big_endian)
+ {
+ buf[0] = val >> 24;
+ buf[1] = val >> 16;
+ buf[2] = val >> 8;
+ buf[3] = val >> 0;
+ }
+ else
+ {
+ buf[3] = val >> 24;
+ buf[2] = val >> 16;
+ buf[1] = val >> 8;
+ buf[0] = val >> 0;
+ }
+ buf += 4;
break;
case BFD_RELOC_16:
- *buf++ = val >> 8;
- *buf++ = val >> 0;
+ if (target_big_endian)
+ {
+ buf[0] = val >> 8;
+ buf[1] = val >> 0;
+ }
+ else
+ {
+ buf[1] = val >> 8;
+ buf[0] = val >> 0;
+ }
+ buf += 2;
break;
case BFD_RELOC_8:
fixP->fx_done = 1;
}
-/* Put number into target byte order (big endian). */
+/* Put number into target byte order. */
void
-md_number_to_chars (char *ptr, valueT use, int nbytes)
+md_number_to_chars (char * ptr, valueT use, int nbytes)
{
- number_to_chars_bigendian (ptr, use, nbytes);
+ if (target_big_endian)
+ number_to_chars_bigendian (ptr, use, nbytes);
+ else
+ number_to_chars_littleendian (ptr, use, nbytes);
}
/* Convert from target byte order to host byte order. */
-static int
-md_chars_to_number (char *val, int n)
+static valueT
+md_chars_to_number (char * buf, int n)
{
- int retval = 0;
+ valueT result = 0;
+ unsigned char * where = (unsigned char *) buf;
- while (n--)
+ if (target_big_endian)
{
- retval <<= 8;
- retval |= (*val++ & 255);
+ while (n--)
+ {
+ result <<= 8;
+ result |= (*where++ & 255);
+ }
+ }
+ else
+ {
+ while (n--)
+ {
+ result <<= 8;
+ result |= (where[n] & 255);
+ }
}
- return retval;
+ return result;
}
/* Generate a machine-dependent relocation. */
return 0;
}
- relP = xmalloc (sizeof (arelent));
- gas_assert (relP != 0);
- relP->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
+ relP = XNEW (arelent);
+ relP->sym_ptr_ptr = XNEW (asymbol *);
*relP->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy);
relP->address = fixP->fx_frag->fr_address + fixP->fx_where;
case BFD_RELOC_32:
return addr + 4;
case BFD_RELOC_MOXIE_10_PCREL:
- return addr;
+ /* Offset is from the end of the instruction. */
+ return addr + 2;
default:
abort ();
return addr;
projects / binutils-gdb.git / blobdiff