/* tc-c30.c -- Assembly code for the Texas Instruments TMS320C30
- Copyright (C) 1998, 1999 Free Software Foundation.
+ Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
This file is part of GAS, the GNU Assembler.
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
-/*
- Texas Instruments TMS320C30 machine specific gas.
+/* Texas Instruments TMS320C30 machine specific gas.
Written by Steven Haworth (steve@pm.cse.rmit.edu.au).
Bugs & suggestions are completely welcome. This is free software.
- Please help us make it better.
- */
+ Please help us make it better. */
#include "as.h"
+#include "safe-ctype.h"
#include "opcode/tic30.h"
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
-/* put here all non-digit non-letter charcters that may occur in an operand */
+/* Put here all non-digit non-letter charcters that may occur in an
+ operand. */
static char operand_special_chars[] = "%$-+(,)*._~/<>&^!:[@]";
-static char *ordinal_names[] =
-{"first", "second", "third", "fourth", "fifth"};
+static char *ordinal_names[] = {
+ "first", "second", "third", "fourth", "fifth"
+};
const int md_reloc_size = 0;
const char line_separator_chars[] = "";
const char *md_shortopts = "";
-struct option md_longopts[] =
-{
+struct option md_longopts[] = {
{NULL, no_argument, NULL, 0}
};
size_t md_longopts_size = sizeof (md_longopts);
-/* Chars that mean this number is a floating point constant */
+/* Chars that mean this number is a floating point constant. */
/* As in 0f12.456 */
/* or 0d1.2345e12 */
const char FLT_CHARS[] = "fFdDxX";
-/* Chars that can be used to separate mant from exp in floating point nums */
+/* Chars that can be used to separate mant from exp in floating point
+ nums. */
const char EXP_CHARS[] = "eE";
/* tables for lexical analysis */
#define is_identifier_char(x) (identifier_chars[(unsigned char) x])
#define is_digit_char(x) (digit_chars[(unsigned char) x])
-const pseudo_typeS md_pseudo_table[] =
-{
+const pseudo_typeS md_pseudo_table[] = {
{0, 0, 0}
};
-#undef USE_STDOUT
-#define USE_STDOUT 1
-
-#ifdef USE_STDARG
-
-#include <stdarg.h>
+int debug PARAMS ((const char *string, ...));
int
-debug (const char *string,...)
+debug VPARAMS ((const char *string, ...))
{
if (flag_debug)
{
- va_list argptr;
char str[100];
- va_start (argptr, string);
+ VA_OPEN (argptr, string);
+ VA_FIXEDARG (argptr, const char *, string);
vsprintf (str, string, argptr);
+ VA_CLOSE (argptr);
if (str[0] == '\0')
return (0);
- va_end (argptr);
fputs (str, USE_STDOUT ? stdout : stderr);
return strlen (str);
}
else
return 0;
}
-#else
-int
-debug (string, va_alist)
- const char *string;
- va_dcl
-{
- if (flag_debug)
- {
- va_list argptr;
- char str[100];
- int cnt;
-
- va_start (argptr, string);
- cnt = vsprintf (str, string, argptr);
- if (str[0] == NULL)
- return (0);
- va_end (argptr);
- fputs (str, USE_STDOUT ? stdout : stderr);
- return (cnt);
- }
- else
- return 0;
-}
-#endif
/* hash table for opcode lookup */
static struct hash_control *op_hash;
for (c = 0; c < 256; c++)
{
- if (islower (c) || isdigit (c))
+ if (ISLOWER (c) || ISDIGIT (c))
{
opcode_chars[c] = c;
register_chars[c] = c;
}
- else if (isupper (c))
+ else if (ISUPPER (c))
{
- opcode_chars[c] = tolower (c);
+ opcode_chars[c] = TOLOWER (c);
register_chars[c] = opcode_chars[c];
}
else if (c == ')' || c == '(')
{
register_chars[c] = c;
}
- if (isupper (c) || islower (c) || isdigit (c))
+ if (ISUPPER (c) || ISLOWER (c) || ISDIGIT (c))
operand_chars[c] = c;
- if (isdigit (c) || c == '-')
+ if (ISDIGIT (c) || c == '-')
digit_chars[c] = c;
- if (isalpha (c) || c == '_' || c == '.' || isdigit (c))
+ if (ISALPHA (c) || c == '_' || c == '.' || ISDIGIT (c))
identifier_chars[c] = c;
if (c == ' ' || c == '\t')
space_chars[c] = c;
#define PC_Register 0x00000000
#define PC_Relative 0x02000000
-typedef struct
-{
+typedef struct {
unsigned op_type;
- struct
- {
- int resolved;
- unsigned address;
- char *label;
- expressionS direct_expr;
- }
- direct;
- struct
- {
- unsigned mod;
- int ARnum;
- unsigned char disp;
- }
- indirect;
- struct
- {
- unsigned opcode;
- }
- reg;
- struct
- {
- int resolved;
- int decimal_found;
- float f_number;
- int s_number;
- unsigned int u_number;
- char *label;
- expressionS imm_expr;
- }
- immediate;
-}
-operand;
+ struct {
+ int resolved;
+ unsigned address;
+ char *label;
+ expressionS direct_expr;
+ } direct;
+ struct {
+ unsigned mod;
+ int ARnum;
+ unsigned char disp;
+ } indirect;
+ struct {
+ unsigned opcode;
+ } reg;
+ struct {
+ int resolved;
+ int decimal_found;
+ float f_number;
+ int s_number;
+ unsigned int u_number;
+ char *label;
+ expressionS imm_expr;
+ } immediate;
+} operand;
int tic30_parallel_insn PARAMS ((char *));
operand *tic30_operand PARAMS ((char *));
template *opcode;
-struct tic30_insn
- {
- template *tm; /* Template of current instruction */
- unsigned opcode; /* Final opcode */
- int operands; /* Number of given operands */
- /* Type of operand given in instruction */
- operand *operand_type[MAX_OPERANDS];
- unsigned addressing_mode; /* Final addressing mode of instruction */
- };
+struct tic30_insn {
+ template *tm; /* Template of current instruction */
+ unsigned opcode; /* Final opcode */
+ unsigned int operands; /* Number of given operands */
+ /* Type of operand given in instruction */
+ operand *operand_type[MAX_OPERANDS];
+ unsigned addressing_mode; /* Final addressing mode of instruction */
+};
struct tic30_insn insn;
static int found_parallel_insn;
char *current_posn;
char *token_start;
char save_char;
- int count;
+ unsigned int count;
debug ("In md_assemble() with argument %s\n", line);
memset (&insn, '\0', sizeof (insn));
return;
}
/* Check if instruction is a parallel instruction by seeing if the first
- character is a q. */
+ character is a q. */
if (*token_start == 'q')
{
if (tic30_parallel_insn (token_start))
/* Check that number of operands is correct */
if (insn.operands != insn.tm->operands)
{
- int i;
- int numops = insn.tm->operands;
+ unsigned int i;
+ unsigned int numops = insn.tm->operands;
/* If operands are not the same, then see if any of the operands are not
required. Then recheck with number of given operands. If they are still not
- the same, then give an error, otherwise carry on. */
+ the same, then give an error, otherwise carry on. */
for (i = 0; i < insn.tm->operands; i++)
if (insn.tm->operand_types[i] & NotReq)
numops--;
if (insn.tm->opcode_modifier == AddressMode)
{
int addr_insn = 0;
- /* Store instruction uses the second operand for the address mode. */
+ /* Store instruction uses the second operand for the address mode. */
if ((insn.tm->operand_types[1] & (Indirect | Direct)) == (Indirect | Direct))
addr_insn = 1;
if (insn.operand_type[addr_insn]->op_type & (AllReg))
return;
}
}
- /* Now set the addressing mode for 3 operand instructions. */
+ /* Now set the addressing mode for 3 operand instructions. */
if ((insn.tm->operand_types[0] & op3T1) && (insn.tm->operand_types[1] & op3T2))
{
/* Set the addressing mode to the values used for 2 operand instructions in the
- G addressing field of the opcode. */
+ G addressing field of the opcode. */
char *p;
switch (insn.operand_type[0]->op_type)
{
}
/* Now make up the opcode for the 3 operand instructions. As in parallel
instructions, there will be no unresolved values, so they can be fully formed
- and added to the frag table. */
+ and added to the frag table. */
insn.opcode = insn.tm->base_opcode;
if (insn.operand_type[0]->op_type & Indirect)
{
char *p;
int am_insn = -1;
insn.opcode = insn.tm->base_opcode;
- /* Create frag for instruction - all instructions are 4 bytes long. */
+ /* Create frag for instruction - all instructions are 4 bytes long. */
p = frag_more (INSN_SIZE);
if ((insn.operands > 0) && (insn.tm->opcode_modifier == AddressMode))
{
md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
fix = fix_new_exp (frag_now, p + 3 - (frag_now->fr_literal), 1, &insn.operand_type[0]->direct.direct_expr, 0, 0);
/* Ensure that the assembler doesn't complain about fitting a 24-bit
- address into 8 bits. */
+ address into 8 bits. */
fix->fx_no_overflow = 1;
}
}
}
else if (insn.tm->operand_types[0] & NotReq)
{
- /* Check for NOP instruction without arguments. */
+ /* Check for NOP instruction without arguments. */
md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
}
else if (insn.tm->operands == 0)
{
- /* Check for instructions without operands. */
+ /* Check for instructions without operands. */
md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
}
}
debug ("Addressing mode: %08X\n", insn.addressing_mode);
{
- int i;
+ unsigned int i;
for (i = 0; i < insn.operands; i++)
{
if (insn.operand_type[i]->immediate.label)
debug ("\n");
}
-struct tic30_par_insn
-{
+struct tic30_par_insn {
partemplate *tm; /* Template of current parallel instruction */
- int operands[2]; /* Number of given operands for each insn */
+ unsigned operands[2]; /* Number of given operands for each insn */
/* Type of operand given in instruction */
operand *operand_type[2][MAX_OPERANDS];
- int swap_operands; /* Whether to swap operands around. */
+ int swap_operands; /* Whether to swap operands around. */
unsigned p_field; /* Value of p field in multiply add/sub instructions */
unsigned opcode; /* Final opcode */
};
{0};
char second_opcode[6] =
{0};
- int i;
+ unsigned int i;
int current_opcode = -1;
int char_ptr = 0;
int num_ind = 0;
for (count = 0; count < 2; count++)
{
- int i;
+ unsigned int i;
for (i = 0; i < p_insn.operands[count]; i++)
{
if ((p_insn.operand_type[count][i]->op_type &
/* Get number of R register and indirect reference contained within the first
two operands of each instruction. This is required for the multiply
parallel instructions which require two R registers and two indirect
- references, but not in any particular place. */
+ references, but not in any particular place. */
if ((p_insn.operand_type[count][i]->op_type & Rn) && i < 2)
num_rn++;
else if ((p_insn.operand_type[count][i]->op_type & Indirect) && i < 2)
debug ("P field: %08X\n", p_insn.p_field);
/* Finalise opcode. This is easier for parallel instructions as they have to be
fully resolved, there are no memory addresses allowed, except through indirect
- addressing, so there are no labels to resolve. */
+ addressing, so there are no labels to resolve. */
{
p_insn.opcode = p_insn.tm->base_opcode;
switch (p_insn.tm->oporder)
}
break;
}
- } /* Opcode is finalised at this point for all parallel instructions. */
+ } /* Opcode is finalised at this point for all parallel instructions. */
{ /* Output opcode */
char *p;
p = frag_more (INSN_SIZE);
md_number_to_chars (p, (valueT) p_insn.opcode, INSN_SIZE);
}
{
- int i, j;
+ unsigned int i, j;
for (i = 0; i < 2; i++)
for (j = 0; j < p_insn.operands[i]; j++)
free (p_insn.operand_type[i][j]);
tic30_operand (token)
char *token;
{
- int count;
+ unsigned int count;
char ind_buffer[strlen (token)];
operand *current_op;
ind_buffer[0] = *token;
for (count = 1; count < strlen (token); count++)
{ /* Strip operand */
- ind_buffer[buffer_posn] = tolower (*(token + count));
+ ind_buffer[buffer_posn] = TOLOWER (*(token + count));
if ((*(token + count - 1) == 'a' || *(token + count - 1) == 'A') &&
(*(token + count) == 'r' || *(token + count) == 'R'))
{
if (*(token + count) == '(')
{
/* Parenthesis found, so check if a displacement value is inside. If so, get
- the value and remove it from the buffer. */
+ the value and remove it from the buffer. */
if (is_digit_char (*(token + count + 1)))
{
char disp[10];
current_op->immediate.resolved = 1;
}
current_op->op_type = Disp | Abs24 | Imm16 | Imm24;
- if (current_op->immediate.u_number >= 0 && current_op->immediate.u_number <= 31)
+ if (current_op->immediate.u_number <= 31)
current_op->op_type |= IVector;
}
}
{
if (is_opcode_char (c) && search_status == NONE)
{
- opcode[char_ptr++] = tolower (c);
+ opcode[char_ptr++] = TOLOWER (c);
search_status = START_OPCODE;
}
else if (is_opcode_char (c) && search_status == START_OPCODE)
{
- opcode[char_ptr++] = tolower (c);
+ opcode[char_ptr++] = TOLOWER (c);
}
else if (!is_opcode_char (c) && search_status == START_OPCODE)
{
#undef END_OPERANDS
/* In order to get gas to ignore any | chars at the start of a line,
- this function returns true if a | is found in a line. */
+ this function returns true if a | is found in a line. */
int
tic30_unrecognized_line (c)
int
md_estimate_size_before_relax (fragP, segment)
- fragS *fragP;
- segT segment;
+ fragS *fragP ATTRIBUTE_UNUSED;
+ segT segment ATTRIBUTE_UNUSED;
{
debug ("In md_estimate_size_before_relax()\n");
return 0;
void
md_convert_frag (abfd, sec, fragP)
- bfd *abfd;
- segT sec;
- register fragS *fragP;
+ bfd *abfd ATTRIBUTE_UNUSED;
+ segT sec ATTRIBUTE_UNUSED;
+ register fragS *fragP ATTRIBUTE_UNUSED;
{
debug ("In md_convert_frag()\n");
}
-int
-md_apply_fix (fixP, valP)
+void
+md_apply_fix3 (fixP, valP, seg)
fixS *fixP;
valueT *valP;
+ segT seg ATTRIBUTE_UNUSED;
{
valueT value = *valP;
debug ("fx_offset = %d\n", (int) fixP->fx_offset);
{
char *buf = fixP->fx_frag->fr_literal + fixP->fx_where;
+
value /= INSN_SIZE;
if (fixP->fx_size == 1)
- { /* Special fix for LDP instruction. */
- value = (value & 0x00FF0000) >> 16;
- }
+ /* Special fix for LDP instruction. */
+ value = (value & 0x00FF0000) >> 16;
+
debug ("new value = %ld\n", (long) value);
md_number_to_chars (buf, value, fixP->fx_size);
}
- return 1;
+
+ if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
+ fixP->fx_done = 1;
}
int
md_parse_option (c, arg)
- int c;
- char *arg;
+ int c ATTRIBUTE_UNUSED;
+ char *arg ATTRIBUTE_UNUSED;
{
- int i;
-
debug ("In md_parse_option()\n");
- for (i = 0; i < c; i++)
- {
- printf ("%c\n", arg[c]);
- }
return 0;
}
void
md_show_usage (stream)
- FILE *stream;
+ FILE *stream ATTRIBUTE_UNUSED;
{
debug ("In md_show_usage()\n");
}
symbolS *
md_undefined_symbol (name)
- char *name;
+ char *name ATTRIBUTE_UNUSED;
{
debug ("In md_undefined_symbol()\n");
return (symbolS *) 0;
debug ("fx_size = %d\n", fixP->fx_size);
/* Find the opcode that represents the current instruction in the fr_literal
storage area, and check bit 21. Bit 21 contains whether the current instruction
- is a delayed one or not, and then set the offset value appropriately. */
+ is a delayed one or not, and then set the offset value appropriately. */
if (fixP->fx_frag->fr_literal[fixP->fx_where - fixP->fx_size + 1] & 0x20)
offset = 3;
else
arelent *
tc_gen_reloc (section, fixP)
- asection *section;
+ asection *section ATTRIBUTE_UNUSED;
fixS *fixP;
{
arelent *rel;
rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
*rel->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy);
rel->address = fixP->fx_frag->fr_address + fixP->fx_where;
- if (fixP->fx_pcrel)
- rel->addend = fixP->fx_addnumber;
- else
- rel->addend = 0;
+ rel->addend = 0;
rel->howto = bfd_reloc_type_lookup (stdoutput, code);
if (!rel->howto)
{
return rel;
}
-void
-tc_aout_pre_write_hook ()
-{
- debug ("In tc_aout_pre_write_hook()\n");
-}
-
void
md_operand (expressionP)
- expressionS *expressionP;
+ expressionS *expressionP ATTRIBUTE_UNUSED;
{
debug ("In md_operand()\n");
}
output_invalid (c)
char c;
{
- if (isprint (c))
+ if (ISPRINT (c))
sprintf (output_invalid_buf, "'%c'", c);
else
sprintf (output_invalid_buf, "(0x%x)", (unsigned) c);
projects / deliverable / binutils-gdb.git / blobdiff