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Diffstat (limited to 'gas/config/tc-mn10200.c')
-rw-r--r--gas/config/tc-mn10200.c245
1 files changed, 132 insertions, 113 deletions
diff --git a/gas/config/tc-mn10200.c b/gas/config/tc-mn10200.c
index 264f7bf..5d4bb60 100644
--- a/gas/config/tc-mn10200.c
+++ b/gas/config/tc-mn10200.c
@@ -21,7 +21,7 @@
#include <stdio.h>
#include <ctype.h>
#include "as.h"
-#include "subsegs.h"
+#include "subsegs.h"
#include "opcode/mn10200.h"
/* Structure to hold information about predefined registers. */
@@ -31,46 +31,47 @@ struct reg_name
int value;
};
-/* Generic assembler global variables which must be defined by all targets. */
+/* Generic assembler global variables which must be defined by all
+ targets. */
-/* Characters which always start a comment. */
+/* Characters which always start a comment. */
const char comment_chars[] = "#";
/* Characters which start a comment at the beginning of a line. */
const char line_comment_chars[] = ";#";
-/* Characters which may be used to separate multiple commands on a
+/* Characters which may be used to separate multiple commands on a
single line. */
const char line_separator_chars[] = ";";
-/* Characters which are used to indicate an exponent in a floating
+/* Characters which are used to indicate an exponent in a floating
point number. */
const char EXP_CHARS[] = "eE";
-/* Characters which mean that a number is a floating point constant,
+/* Characters which mean that a number is a floating point constant,
as in 0d1.0. */
const char FLT_CHARS[] = "dD";
-
const relax_typeS md_relax_table[] = {
- /* bCC relaxing */
+ /* bCC relaxing */
{0x81, -0x7e, 2, 1},
{0x8004, -0x7ffb, 5, 2},
{0x800006, -0x7ffff9, 7, 0},
- /* bCCx relaxing */
+ /* bCCx relaxing */
{0x81, -0x7e, 3, 4},
{0x8004, -0x7ffb, 6, 5},
{0x800006, -0x7ffff9, 8, 0},
- /* jsr relaxing */
+ /* jsr relaxing */
{0x8004, -0x7ffb, 3, 7},
{0x800006, -0x7ffff9, 5, 0},
- /* jmp relaxing */
+ /* jmp relaxing */
{0x81, -0x7e, 2, 9},
{0x8004, -0x7ffb, 3, 10},
{0x800006, -0x7ffff9, 5, 0},
};
-/* local functions */
+
+/* Local functions. */
static void mn10200_insert_operand PARAMS ((unsigned long *, unsigned long *,
const struct mn10200_operand *,
offsetT, char *, unsigned,
@@ -83,8 +84,7 @@ static boolean data_register_name PARAMS ((expressionS *expressionP));
static boolean address_register_name PARAMS ((expressionS *expressionP));
static boolean other_register_name PARAMS ((expressionS *expressionP));
-
-/* fixups */
+/* Fixups. */
#define MAX_INSN_FIXUPS (5)
struct mn10200_fixup
{
@@ -99,7 +99,7 @@ const char *md_shortopts = "";
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);
/* The target specific pseudo-ops which we support. */
const pseudo_typeS md_pseudo_table[] =
@@ -110,7 +110,7 @@ const pseudo_typeS md_pseudo_table[] =
/* Opcode hash table. */
static struct hash_control *mn10200_hash;
-/* This table is sorted. Suitable for searching by a binary search. */
+/* This table is sorted. Suitable for searching by a binary search. */
static const struct reg_name data_registers[] =
{
{ "d0", 0 },
@@ -118,7 +118,8 @@ static const struct reg_name data_registers[] =
{ "d2", 2 },
{ "d3", 3 },
};
-#define DATA_REG_NAME_CNT (sizeof(data_registers) / sizeof(struct reg_name))
+#define DATA_REG_NAME_CNT \
+ (sizeof (data_registers) / sizeof (struct reg_name))
static const struct reg_name address_registers[] =
{
@@ -127,18 +128,20 @@ static const struct reg_name address_registers[] =
{ "a2", 2 },
{ "a3", 3 },
};
-#define ADDRESS_REG_NAME_CNT (sizeof(address_registers) / sizeof(struct reg_name))
+#define ADDRESS_REG_NAME_CNT \
+ (sizeof (address_registers) / sizeof (struct reg_name))
static const struct reg_name other_registers[] =
{
{ "mdr", 0 },
{ "psw", 0 },
};
-#define OTHER_REG_NAME_CNT (sizeof(other_registers) / sizeof(struct reg_name))
+#define OTHER_REG_NAME_CNT \
+ (sizeof (other_registers) / sizeof (struct reg_name))
/* reg_name_search does a binary search of the given register table
to see if "name" is a valid regiter name. Returns the register
- number from the array on success, or -1 on failure. */
+ number from the array on success, or -1 on failure. */
static int
reg_name_search (regs, regcount, name)
@@ -160,14 +163,13 @@ reg_name_search (regs, regcount, name)
high = middle - 1;
else if (cmp > 0)
low = middle + 1;
- else
- return regs[middle].value;
+ else
+ return regs[middle].value;
}
while (low <= high);
return -1;
}
-
/* Summary of register_name().
*
* in: Input_line_pointer points to 1st char of operand.
@@ -178,6 +180,7 @@ reg_name_search (regs, regcount, name)
* Input_line_pointer->(next non-blank) char after operand, or is in
* its original state.
*/
+
static boolean
data_register_name (expressionP)
expressionS *expressionP;
@@ -187,29 +190,34 @@ data_register_name (expressionP)
char *start;
char c;
- /* Find the spelling of the operand */
+ /* Find the spelling of the operand. */
start = name = input_line_pointer;
c = get_symbol_end ();
reg_number = reg_name_search (data_registers, DATA_REG_NAME_CNT, name);
- /* look to see if it's in the register table */
- if (reg_number >= 0)
+ /* Look to see if it's in the register table. */
+ if (reg_number >= 0)
{
expressionP->X_op = O_register;
expressionP->X_add_number = reg_number;
- /* make the rest nice */
+ /* Make the rest nice. */
expressionP->X_add_symbol = NULL;
expressionP->X_op_symbol = NULL;
- *input_line_pointer = c; /* put back the delimiting char */
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
return true;
}
else
{
- /* reset the line as if we had not done anything */
- *input_line_pointer = c; /* put back the delimiting char */
- input_line_pointer = start; /* reset input_line pointer */
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
return false;
}
}
@@ -224,6 +232,7 @@ data_register_name (expressionP)
* Input_line_pointer->(next non-blank) char after operand, or is in
* its original state.
*/
+
static boolean
address_register_name (expressionP)
expressionS *expressionP;
@@ -233,29 +242,34 @@ address_register_name (expressionP)
char *start;
char c;
- /* Find the spelling of the operand */
+ /* Find the spelling of the operand. */
start = name = input_line_pointer;
c = get_symbol_end ();
reg_number = reg_name_search (address_registers, ADDRESS_REG_NAME_CNT, name);
- /* look to see if it's in the register table */
- if (reg_number >= 0)
+ /* Look to see if it's in the register table. */
+ if (reg_number >= 0)
{
expressionP->X_op = O_register;
expressionP->X_add_number = reg_number;
- /* make the rest nice */
+ /* Make the rest nice. */
expressionP->X_add_symbol = NULL;
expressionP->X_op_symbol = NULL;
- *input_line_pointer = c; /* put back the delimiting char */
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
return true;
}
else
{
- /* reset the line as if we had not done anything */
- *input_line_pointer = c; /* put back the delimiting char */
- input_line_pointer = start; /* reset input_line pointer */
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
return false;
}
}
@@ -270,6 +284,7 @@ address_register_name (expressionP)
* Input_line_pointer->(next non-blank) char after operand, or is in
* its original state.
*/
+
static boolean
other_register_name (expressionP)
expressionS *expressionP;
@@ -279,40 +294,45 @@ other_register_name (expressionP)
char *start;
char c;
- /* Find the spelling of the operand */
+ /* Find the spelling of the operand. */
start = name = input_line_pointer;
c = get_symbol_end ();
reg_number = reg_name_search (other_registers, OTHER_REG_NAME_CNT, name);
- /* look to see if it's in the register table */
- if (reg_number >= 0)
+ /* Look to see if it's in the register table. */
+ if (reg_number >= 0)
{
expressionP->X_op = O_register;
expressionP->X_add_number = reg_number;
- /* make the rest nice */
+ /* Make the rest nice. */
expressionP->X_add_symbol = NULL;
expressionP->X_op_symbol = NULL;
- *input_line_pointer = c; /* put back the delimiting char */
+
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
return true;
}
else
{
- /* reset the line as if we had not done anything */
- *input_line_pointer = c; /* put back the delimiting char */
- input_line_pointer = start; /* reset input_line pointer */
+ /* Reset the line as if we had not done anything. */
+ /* Put back the delimiting char. */
+ *input_line_pointer = c;
+
+ /* Reset input_line pointer. */
+ input_line_pointer = start;
return false;
}
}
void
md_show_usage (stream)
- FILE *stream;
+ FILE *stream;
{
- fprintf(stream, _("MN10200 options:\n\
+ fprintf (stream, _("MN10200 options:\n\
none yet\n"));
-}
+}
int
md_parse_option (c, arg)
@@ -324,16 +344,16 @@ md_parse_option (c, arg)
symbolS *
md_undefined_symbol (name)
- char *name;
+ char *name;
{
return 0;
}
char *
md_atof (type, litp, sizep)
- int type;
- char *litp;
- int *sizep;
+ int type;
+ char *litp;
+ int *sizep;
{
int prec;
LITTLENUM_TYPE words[4];
@@ -354,7 +374,7 @@ md_atof (type, litp, sizep)
*sizep = 0;
return _("bad call to md_atof");
}
-
+
t = atof_ieee (input_line_pointer, type, words);
if (t)
input_line_pointer = t;
@@ -370,12 +390,11 @@ md_atof (type, litp, sizep)
return NULL;
}
-
void
md_convert_frag (abfd, sec, fragP)
- bfd *abfd;
- asection *sec;
- fragS *fragP;
+ bfd *abfd;
+ asection *sec;
+ fragS *fragP;
{
static unsigned long label_count = 0;
char buf[40];
@@ -737,7 +756,7 @@ md_begin ()
char *prev_name = "";
register const struct mn10200_opcode *op;
- mn10200_hash = hash_new();
+ mn10200_hash = hash_new ();
/* Insert unique names into hash table. The MN10200 instruction set
has many identical opcode names that have different opcodes based
@@ -747,7 +766,7 @@ md_begin ()
op = mn10200_opcodes;
while (op->name)
{
- if (strcmp (prev_name, op->name))
+ if (strcmp (prev_name, op->name))
{
prev_name = (char *) op->name;
hash_insert (mn10200_hash, op->name, (char *) op);
@@ -762,7 +781,7 @@ md_begin ()
}
void
-md_assemble (str)
+md_assemble (str)
char *str;
{
char *s;
@@ -776,13 +795,13 @@ md_assemble (str)
int match;
/* Get the opcode. */
- for (s = str; *s != '\0' && ! isspace (*s); s++)
+ for (s = str; *s != '\0' && !isspace (*s); s++)
;
if (*s != '\0')
*s++ = '\0';
- /* find the first opcode with the proper name */
- opcode = (struct mn10200_opcode *)hash_find (mn10200_hash, str);
+ /* Find the first opcode with the proper name. */
+ opcode = (struct mn10200_opcode *) hash_find (mn10200_hash, str);
if (opcode == NULL)
{
as_bad (_("Unrecognized opcode: `%s'"), str);
@@ -795,7 +814,7 @@ md_assemble (str)
input_line_pointer = str;
- for(;;)
+ for (;;)
{
const char *errmsg = NULL;
int op_idx;
@@ -833,7 +852,7 @@ md_assemble (str)
if (operand->flags & MN10200_OPERAND_RELAX)
relaxable = 1;
- /* Gather the operand. */
+ /* Gather the operand. */
hold = input_line_pointer;
input_line_pointer = str;
@@ -926,7 +945,7 @@ md_assemble (str)
expression (&ex);
}
- switch (ex.X_op)
+ switch (ex.X_op)
{
case O_illegal:
errmsg = _("illegal operand");
@@ -936,13 +955,13 @@ md_assemble (str)
goto error;
case O_register:
if ((operand->flags
- & (MN10200_OPERAND_DREG | MN10200_OPERAND_AREG)) == 0)
+ & (MN10200_OPERAND_DREG | MN10200_OPERAND_AREG)) == 0)
{
input_line_pointer = hold;
str = hold;
goto error;
}
-
+
if (opcode->format == FMT_2 || opcode->format == FMT_5)
extra_shift = 8;
else if (opcode->format == FMT_3 || opcode->format == FMT_6
@@ -950,7 +969,7 @@ md_assemble (str)
extra_shift = 16;
else
extra_shift = 0;
-
+
mn10200_insert_operand (&insn, &extension, operand,
ex.X_add_number, (char *) NULL,
0, extra_shift);
@@ -963,7 +982,7 @@ md_assemble (str)
then promote it (ie this opcode does not match). */
if (operand->flags
& (MN10200_OPERAND_PROMOTE | MN10200_OPERAND_RELAX)
- && ! check_operand (insn, operand, ex.X_add_number))
+ && !check_operand (insn, operand, ex.X_add_number))
{
input_line_pointer = hold;
str = hold;
@@ -1010,20 +1029,20 @@ keep_going:
error:
if (match == 0)
- {
+ {
next_opcode = opcode + 1;
- if (!strcmp(next_opcode->name, opcode->name))
+ if (!strcmp (next_opcode->name, opcode->name))
{
opcode = next_opcode;
continue;
}
-
+
as_bad ("%s", errmsg);
return;
- }
+ }
break;
}
-
+
while (isspace (*str))
++str;
@@ -1044,14 +1063,14 @@ keep_going:
size = 5;
else
abort ();
-
+
/* Write out the instruction. */
if (relaxable && fc > 0)
{
int type;
- /* bCC */
+ /* bCC */
if (size == 2 && opcode->opcode != 0xfc0000)
{
/* Handle bra specially. Basically treat it like jmp so
@@ -1061,18 +1080,18 @@ keep_going:
It is also important to not treat it like other bCC
instructions since the long forms of bra is different
from other bCC instructions. */
- if (opcode->opcode == 0xea00)
- type = 8;
+ if (opcode->opcode == 0xea00)
+ type = 8;
else
type = 0;
}
- /* jsr */
+ /* jsr */
else if (size == 3 && opcode->opcode == 0xfd0000)
type = 6;
- /* jmp */
+ /* jmp */
else if (size == 3 && opcode->opcode == 0xfc0000)
type = 8;
- /* bCCx */
+ /* bCCx */
else
type = 3;
@@ -1130,25 +1149,27 @@ keep_going:
int offset;
fixS *fixP;
- reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
+ reloc_howto = bfd_reloc_type_lookup (stdoutput,
+ fixups[i].reloc);
if (!reloc_howto)
- abort();
-
+ abort ();
+
size = bfd_get_reloc_size (reloc_howto);
if (size < 1 || size > 4)
- abort();
+ abort ();
offset = 4 - size;
fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset,
size,
- &fixups[i].exp,
+ &fixups[i].exp,
reloc_howto->pc_relative,
fixups[i].reloc);
- /* PC-relative offsets are from the first byte of the next
- instruction, not from the start of the current instruction. */
+ /* PC-relative offsets are from the first byte of the
+ next instruction, not from the start of the current
+ instruction. */
if (reloc_howto->pc_relative)
fixP->fx_offset += size;
}
@@ -1167,7 +1188,6 @@ keep_going:
/* Is the reloc pc-relative? */
pcrel = (operand->flags & MN10200_OPERAND_PCREL) != 0;
-
/* Choose a proper BFD relocation type. */
if (pcrel)
{
@@ -1192,7 +1212,8 @@ keep_going:
abort ();
}
- /* Convert the size of the reloc into what fix_new_exp wants. */
+ /* Convert the size of the reloc into what fix_new_exp
+ wants. */
reloc_size = reloc_size / 8;
if (reloc_size == 8)
reloc_size = 0;
@@ -1205,8 +1226,9 @@ keep_going:
reloc_size, &fixups[i].exp, pcrel,
((bfd_reloc_code_real_type) reloc));
- /* PC-relative offsets are from the first byte of the next
- instruction, not from the start of the current instruction. */
+ /* PC-relative offsets are from the first byte of the
+ next instruction, not from the start of the current
+ instruction. */
if (pcrel)
fixP->fx_offset += size;
}
@@ -1214,10 +1236,9 @@ keep_going:
}
}
+/* If while processing a fixup, a reloc really needs to be created
+ Then it is done here. */
-/* if while processing a fixup, a reloc really needs to be created */
-/* then it is done here */
-
arelent *
tc_gen_reloc (seg, fixp)
asection *seg;
@@ -1230,8 +1251,8 @@ tc_gen_reloc (seg, fixp)
if (reloc->howto == (reloc_howto_type *) NULL)
{
as_bad_where (fixp->fx_file, fixp->fx_line,
- _("reloc %d not supported by object file format"),
- (int)fixp->fx_r_type);
+ _("reloc %d not supported by object file format"),
+ (int) fixp->fx_r_type);
return NULL;
}
reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
@@ -1249,7 +1270,7 @@ tc_gen_reloc (seg, fixp)
reloc->addend = (S_GET_VALUE (fixp->fx_addsy)
- S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset);
}
- else
+ else
{
reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
*reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
@@ -1286,7 +1307,7 @@ md_estimate_size_before_relax (fragp, seg)
}
return 2;
}
-}
+}
long
md_pcrel_from (fixp)
@@ -1294,7 +1315,7 @@ md_pcrel_from (fixp)
{
return fixp->fx_frag->fr_address;
#if 0
- if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
+ if (fixp->fx_addsy != (symbolS *) NULL && !S_IS_DEFINED (fixp->fx_addsy))
{
/* The symbol is undefined. Let the linker figure it out. */
return 0;
@@ -1340,14 +1361,13 @@ mn10200_insert_operand (insnp, extensionp, operand, val, file, line, shift)
min = - (1 << (operand->bits - 1));
}
else
- {
- max = (1 << operand->bits) - 1;
- min = 0;
- }
+ {
+ max = (1 << operand->bits) - 1;
+ min = 0;
+ }
test = val;
-
if (test < (offsetT) min || test > (offsetT) max)
{
const char *err =
@@ -1397,14 +1417,13 @@ check_operand (insn, operand, val)
min = - (1 << (operand->bits - 1));
}
else
- {
- max = (1 << operand->bits) - 1;
- min = 0;
- }
+ {
+ max = (1 << operand->bits) - 1;
+ min = 0;
+ }
test = val;
-
if (test < (offsetT) min || test > (offsetT) max)
return 0;
else
generated by cgit v1.1 at 2024-10-17 04:29:12 +0000