/* tc-moxie.c -- Assemble code for moxie
- Copyright 2009
+ Copyright 2009, 2012
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
const char FLT_CHARS[] = "rRsSfFdDxXpP";
const char EXP_CHARS[] = "eE";
+static valueT md_chars_to_number (char * buf, int n);
+
+/* Byte order. */
+extern int target_big_endian;
+const char *moxie_target_format = DEFAULT_TARGET_FORMAT;
+
void
md_operand (expressionS *op __attribute__((unused)))
{
for (count = 0, opcode = moxie_form2_opc_info; count++ < 4; opcode++)
hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
- for (count = 0, opcode = moxie_form3_opc_info; count++ < 4; opcode++)
+ for (count = 0, opcode = moxie_form3_opc_info; count++ < 10; opcode++)
hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
bfd_set_arch_mach (stdoutput, TARGET_ARCH, 0);
if (*s != '$')
{
- as_bad ("expecting register");
+ as_bad (_("expecting register"));
ignore_rest_of_line ();
return -1;
}
reg = s[2] - '0';
if ((reg < 0) || (reg > 9))
{
- as_bad ("illegal register number");
+ as_bad (_("illegal register number"));
ignore_rest_of_line ();
return -1;
}
}
else
{
- as_bad ("illegal register number");
+ as_bad (_("illegal register number"));
ignore_rest_of_line ();
return -1;
}
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");
+ as_warn (_("expecting comma delimited register operands"));
op_end++;
src = parse_register_operand (&op_end);
iword += (dest << 4) + src;
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
}
break;
case MOXIE_F1_A4:
if (*op_end != ',')
{
- as_bad ("expecting comma delimited operands");
+ as_bad (_("expecting comma delimited operands"));
ignore_rest_of_line ();
return;
}
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
break;
case MOXIE_F1_A:
iword = opcode->opcode << 8;
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
iword += (reg << 4);
}
break;
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 != '(')
{
- as_bad ("expecting indirect register `($rA)'");
+ as_bad (_("expecting indirect register `($rA)'"));
ignore_rest_of_line ();
return;
}
b = parse_register_operand (&op_end);
if (*op_end != ')')
{
- as_bad ("missing closing parenthesis");
+ as_bad (_("missing closing parenthesis"));
ignore_rest_of_line ();
return;
}
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
}
break;
case MOXIE_F1_AiB:
int a, b;
if (*op_end != '(')
{
- as_bad ("expecting indirect register `($rA)'");
+ as_bad (_("expecting indirect register `($rA)'"));
ignore_rest_of_line ();
return;
}
a = parse_register_operand (&op_end);
if (*op_end != ')')
{
- as_bad ("missing closing parenthesis");
+ as_bad (_("missing closing parenthesis"));
ignore_rest_of_line ();
return;
}
op_end++;
if (*op_end != ',')
- as_warn ("expecting comma delimeted register operands");
+ as_warn (_("expecting comma delimited register operands"));
op_end++;
b = parse_register_operand (&op_end);
iword += (a << 4) + b;
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
}
break;
case MOXIE_F1_4A:
if (*op_end != ',')
{
- as_bad ("expecting comma delimited operands");
+ as_bad (_("expecting comma delimited operands"));
ignore_rest_of_line ();
return;
}
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
iword += (a << 4);
}
if (*op_end != ',')
{
- as_bad ("expecting comma delimited operands");
+ as_bad (_("expecting comma delimited operands"));
ignore_rest_of_line ();
return;
}
if (*op_end != '(')
{
- as_bad ("expecting indirect register `($rX)'");
+ as_bad (_("expecting indirect register `($rX)'"));
ignore_rest_of_line ();
return;
}
b = parse_register_operand (&op_end);
if (*op_end != ')')
{
- as_bad ("missing closing parenthesis");
+ as_bad (_("missing closing parenthesis"));
ignore_rest_of_line ();
return;
}
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
iword += (a << 4) + b;
}
if (*op_end != '(')
{
- as_bad ("expecting indirect register `($rX)'");
+ as_bad (_("expecting indirect register `($rX)'"));
ignore_rest_of_line ();
return;
}
a = parse_register_operand (&op_end);
if (*op_end != ')')
{
- as_bad ("missing closing parenthesis");
+ as_bad (_("missing closing parenthesis"));
ignore_rest_of_line ();
return;
}
if (*op_end != ',')
{
- as_bad ("expecting comma delimited operands");
+ as_bad (_("expecting comma delimited operands"));
ignore_rest_of_line ();
return;
}
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
iword += (a << 4) + b;
}
while (ISSPACE (*op_end))
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
+ break;
+ case MOXIE_F3_PCREL:
+ iword = (3<<14) | (opcode->opcode << 10);
+ while (ISSPACE (*op_end))
+ op_end++;
+ {
+ expressionS arg;
+
+ op_end = parse_exp_save_ilp (op_end, &arg);
+ fix_new_exp (frag_now,
+ (p - frag_now->fr_literal),
+ 2,
+ &arg,
+ TRUE,
+ BFD_RELOC_MOXIE_10_PCREL);
+ }
break;
default:
- abort();
+ abort ();
}
md_number_to_chars (p, iword, 2);
op_end++;
if (*op_end != 0)
- as_warn ("extra stuff on line ignored");
+ as_warn (_("extra stuff on line ignored"));
if (pending_reloc)
- as_bad ("Something forgot to clean up\n");
+ as_bad (_("Something forgot to clean up\n"));
}
/* Turn a string in input_line_pointer into a floating point constant
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)
{
- return 0;
+ switch (c)
+ {
+ case OPTION_EB:
+ target_big_endian = 1;
+ moxie_target_format = "elf32-bigmoxie";
+ break;
+ case OPTION_EL:
+ target_big_endian = 0;
+ moxie_target_format = "elf32-littlemoxie";
+ 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, valueT * valP ATTRIBUTE_UNUSED, segT seg 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:
*buf++ = val;
break;
+ case BFD_RELOC_MOXIE_10_PCREL:
+ if (!val)
+ break;
+ if (val < -1024 || val > 1022)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("pcrel too far BFD_RELOC_MOXIE_10"));
+ /* 11 bit offset even numbered, so we remove right bit. */
+ val >>= 1;
+ newval = md_chars_to_number (buf, 2);
+ newval |= val & 0x03ff;
+ md_number_to_chars (buf, newval, 2);
+ break;
+
default:
abort ();
}
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)
+{
+ 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 valueT
+md_chars_to_number (char * buf, int n)
{
- number_to_chars_bigendian (ptr, use, nbytes);
+ valueT result = 0;
+ unsigned char * where = (unsigned char *) buf;
+
+ if (target_big_endian)
+ {
+ while (n--)
+ {
+ result <<= 8;
+ result |= (*where++ & 255);
+ }
+ }
+ else
+ {
+ while (n--)
+ {
+ result <<= 8;
+ result |= (where[n] & 255);
+ }
+ }
+
+ return result;
}
/* Generate a machine-dependent relocation. */
case BFD_RELOC_32:
code = fixP->fx_r_type;
break;
+ case BFD_RELOC_MOXIE_10_PCREL:
+ code = fixP->fx_r_type;
+ break;
default:
as_bad_where (fixP->fx_file, fixP->fx_line,
_("Semantics error. This type of operand can not be relocated, it must be an assembly-time constant"));
}
relP = xmalloc (sizeof (arelent));
- assert (relP != 0);
+ gas_assert (relP != 0);
relP->sym_ptr_ptr = xmalloc (sizeof (asymbol *));
*relP->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy);
relP->address = fixP->fx_frag->fr_address + fixP->fx_where;
{
valueT addr = fixP->fx_where + fixP->fx_frag->fr_address;
- fprintf (stderr, "md_pcrel_from 0x%d\n", fixP->fx_r_type);
-
switch (fixP->fx_r_type)
{
case BFD_RELOC_32:
return addr + 4;
+ case BFD_RELOC_MOXIE_10_PCREL:
+ /* Offset is from the end of the instruction. */
+ return addr + 2;
default:
abort ();
return addr;
projects / external / binutils.git / blobdiff