/* tc-tic4x.c -- Assemble for the Texas Instruments TMS320C[34]x.
- Copyright (C) 1997,1998, 2002, 2003, 2005 Free Software Foundation.
+ Copyright (C) 1997,1998, 2002, 2003, 2005, 2006, 2007, 2008
+ Free Software Foundation. Inc.
Contributed by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
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 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
o Support 'abc' constants (that is 0x616263)
*/
-#include <stdio.h>
#include "safe-ctype.h"
#include "as.h"
#include "opcode/tic4x.h"
#include "subsegs.h"
#include "obstack.h"
-#include "symbols.h"
-#include "listing.h"
/* OK, we accept a syntax similar to the other well known C30
assembly tools. With TIC4X_ALT_SYNTAX defined we are more
static tic4x_insn_t the_insn; /* Info about our instruction. */
static tic4x_insn_t *insn = &the_insn;
-static int tic4x_gen_to_words
- PARAMS ((FLONUM_TYPE, LITTLENUM_TYPE *, int ));
-static char *tic4x_atof
- PARAMS ((char *, char, LITTLENUM_TYPE * ));
-static void tic4x_insert_reg
- PARAMS ((char *, int ));
-static void tic4x_insert_sym
- PARAMS ((char *, int ));
-static char *tic4x_expression
- PARAMS ((char *, expressionS *));
-static char *tic4x_expression_abs
- PARAMS ((char *, offsetT *));
-static void tic4x_emit_char
- PARAMS ((char, int));
-static void tic4x_seg_alloc
- PARAMS ((char *, segT, int, symbolS *));
-static void tic4x_asg
- PARAMS ((int));
-static void tic4x_bss
- PARAMS ((int));
-static void tic4x_globl
- PARAMS ((int));
-static void tic4x_cons
- PARAMS ((int));
-static void tic4x_stringer
- PARAMS ((int));
-static void tic4x_eval
- PARAMS ((int));
-static void tic4x_newblock
- PARAMS ((int));
-static void tic4x_sect
- PARAMS ((int));
-static void tic4x_set
- PARAMS ((int));
-static void tic4x_usect
- PARAMS ((int));
-static void tic4x_version
- PARAMS ((int));
-static void tic4x_init_regtable
- PARAMS ((void));
-static void tic4x_init_symbols
- PARAMS ((void));
-static int tic4x_inst_insert
- PARAMS ((tic4x_inst_t *));
-static tic4x_inst_t *tic4x_inst_make
- PARAMS ((char *, unsigned long, char *));
-static int tic4x_inst_add
- PARAMS ((tic4x_inst_t *));
-void tic4x_end
- PARAMS ((void));
-static int tic4x_indirect_parse
- PARAMS ((tic4x_operand_t *, const tic4x_indirect_t *));
-static char *tic4x_operand_parse
- PARAMS ((char *, tic4x_operand_t *));
-static int tic4x_operands_match
- PARAMS ((tic4x_inst_t *, tic4x_insn_t *, int));
-static void tic4x_insn_check
- PARAMS ((tic4x_insn_t *));
-static void tic4x_insn_output
- PARAMS ((tic4x_insn_t *));
-static int tic4x_operands_parse
- PARAMS ((char *, tic4x_operand_t *, int ));
-void tic4x_cleanup
- PARAMS ((void));
-int tic4x_unrecognized_line
- PARAMS ((int));
-static int tic4x_pc_offset
- PARAMS ((unsigned int));
-int tic4x_do_align
- PARAMS ((int, const char *, int, int));
-void tic4x_start_line
- PARAMS ((void));
-arelent *tc_gen_reloc
- PARAMS ((asection *, fixS *));
+static void tic4x_asg (int);
+static void tic4x_bss (int);
+static void tic4x_globl (int);
+static void tic4x_cons (int);
+static void tic4x_stringer (int);
+static void tic4x_eval (int);
+static void tic4x_newblock (int);
+static void tic4x_sect (int);
+static void tic4x_set (int);
+static void tic4x_usect (int);
+static void tic4x_version (int);
const pseudo_typeS
/* Turn generic_floating_point_number into a real short/float/double. */
static int
-tic4x_gen_to_words (flonum, words, precision)
- FLONUM_TYPE flonum;
- LITTLENUM_TYPE *words;
- int precision;
+tic4x_gen_to_words (FLONUM_TYPE flonum, LITTLENUM_TYPE *words, int precision)
{
int return_value = 0;
LITTLENUM_TYPE *p; /* Littlenum pointer. */
/* Returns pointer past text consumed. */
static char *
-tic4x_atof (str, what_kind, words)
- char *str;
- char what_kind;
- LITTLENUM_TYPE *words;
+tic4x_atof (char *str, char what_kind, LITTLENUM_TYPE *words)
{
/* Extra bits for zeroed low-order bits. The 1st MAX_PRECISION are
zeroed, the last contain flonum bits. */
}
static void
-tic4x_insert_reg (regname, regnum)
- char *regname;
- int regnum;
+tic4x_insert_reg (char *regname, int regnum)
{
char buf[32];
int i;
}
static void
-tic4x_insert_sym (symname, value)
- char *symname;
- int value;
+tic4x_insert_sym (char *symname, int value)
{
symbolS *symbolP;
}
static char *
-tic4x_expression (str, exp)
- char *str;
- expressionS *exp;
+tic4x_expression (char *str, expressionS *exp)
{
char *s;
char *t;
}
static char *
-tic4x_expression_abs (str, value)
- char *str;
- offsetT *value;
+tic4x_expression_abs (char *str, offsetT *value)
{
char *s;
char *t;
}
static void
-tic4x_emit_char (c,b)
- char c;
- int b;
+tic4x_emit_char (char c, int b)
{
expressionS exp;
}
static void
-tic4x_seg_alloc (name, seg, size, symbolP)
- char *name ATTRIBUTE_UNUSED;
- segT seg ATTRIBUTE_UNUSED;
- int size;
- symbolS *symbolP;
+tic4x_seg_alloc (char *name ATTRIBUTE_UNUSED,
+ segT seg ATTRIBUTE_UNUSED,
+ int size,
+ symbolS *symbolP)
{
/* Note that the size is in words
so we multiply it by 4 to get the number of bytes to allocate. */
/* .asg ["]character-string["], symbol */
static void
-tic4x_asg (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_asg (int x ATTRIBUTE_UNUSED)
{
char c;
char *name;
strcpy (tmp, name);
name = tmp;
if (hash_find (tic4x_asg_hash, name))
- hash_replace (tic4x_asg_hash, name, (PTR) str);
+ hash_replace (tic4x_asg_hash, name, (void *) str);
else
- hash_insert (tic4x_asg_hash, name, (PTR) str);
+ hash_insert (tic4x_asg_hash, name, (void *) str);
*input_line_pointer = c;
demand_empty_rest_of_line ();
}
/* .bss symbol, size */
static void
-tic4x_bss (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_bss (int x ATTRIBUTE_UNUSED)
{
char c;
char *name;
}
static void
-tic4x_globl (ignore)
- int ignore ATTRIBUTE_UNUSED;
+tic4x_globl (int ignore ATTRIBUTE_UNUSED)
{
char *name;
int c;
*input_line_pointer = c;
SKIP_WHITESPACE ();
S_SET_STORAGE_CLASS (symbolP, C_EXT);
+ S_SET_EXTERNAL (symbolP);
if (c == ',')
{
input_line_pointer++;
/* Handle .byte, .word. .int, .long */
static void
-tic4x_cons (bytes)
- int bytes;
+tic4x_cons (int bytes)
{
register unsigned int c;
do
/* Handle .ascii, .asciz, .string */
static void
-tic4x_stringer (append_zero)
- int append_zero; /*ex: bytes */
+tic4x_stringer (int append_zero)
{
int bytes;
register unsigned int c;
/* .eval expression, symbol */
static void
-tic4x_eval (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_eval (int x ATTRIBUTE_UNUSED)
{
char c;
offsetT value;
/* Reset local labels. */
static void
-tic4x_newblock (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_newblock (int x ATTRIBUTE_UNUSED)
{
dollar_label_clear ();
}
/* .sect "section-name" [, value] */
/* .sect ["]section-name[:subsection-name]["] [, value] */
static void
-tic4x_sect (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_sect (int x ATTRIBUTE_UNUSED)
{
char c;
char *section_name;
/* symbol[:] .set value or .set symbol, value */
static void
-tic4x_set (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_set (int x ATTRIBUTE_UNUSED)
{
symbolS *symbolP;
/* [symbol] .usect ["]section-name["], size-in-words [, alignment-flag] */
static void
-tic4x_usect (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_usect (int x ATTRIBUTE_UNUSED)
{
char c;
char *name;
/* .version cpu-version. */
static void
-tic4x_version (x)
- int x ATTRIBUTE_UNUSED;
+tic4x_version (int x ATTRIBUTE_UNUSED)
{
offsetT temp;
}
static void
-tic4x_init_regtable ()
+tic4x_init_regtable (void)
{
unsigned int i;
}
static void
-tic4x_init_symbols ()
+tic4x_init_symbols (void)
{
/* The TI tools accept case insensitive versions of these symbols,
we don't !
/* Insert a new instruction template into hash table. */
static int
-tic4x_inst_insert (inst)
- tic4x_inst_t *inst;
+tic4x_inst_insert (const tic4x_inst_t *inst)
{
static char prev_name[16];
const char *retval = NULL;
if (!strcmp (inst->name, prev_name) || inst->name[0] == '\0')
return 1;
- retval = hash_insert (tic4x_op_hash, inst->name, (PTR) inst);
+ retval = hash_insert (tic4x_op_hash, inst->name, (void *) inst);
if (retval != NULL)
fprintf (stderr, "internal error: can't hash `%s': %s\n",
inst->name, retval);
/* Make a new instruction template. */
static tic4x_inst_t *
-tic4x_inst_make (name, opcode, args)
- char *name;
- unsigned long opcode;
- char *args;
+tic4x_inst_make (char *name, unsigned long opcode, char *args)
{
static tic4x_inst_t *insts = NULL;
static char *names = NULL;
/* Add instruction template, creating dynamic templates as required. */
static int
-tic4x_inst_add (insts)
- tic4x_inst_t *insts;
+tic4x_inst_add (const tic4x_inst_t *insts)
{
char *s = insts->name;
char *d;
set up all the tables, etc., that the MD part of the assembler will
need. */
void
-md_begin ()
+md_begin (void)
{
int ok = 1;
unsigned int i;
/* Add mnemonics to hash table, expanding conditional mnemonics on fly. */
for (i = 0; i < tic4x_num_insts; i++)
- ok &= tic4x_inst_add ((void *) &tic4x_insts[i]);
+ ok &= tic4x_inst_add (tic4x_insts + i);
/* Create dummy inst to avoid errors accessing end of table. */
tic4x_inst_make ("", 0, "");
}
void
-tic4x_end ()
+tic4x_end (void)
{
bfd_set_arch_mach (stdoutput, bfd_arch_tic4x,
IS_CPU_TIC4X (tic4x_cpu) ? bfd_mach_tic4x : bfd_mach_tic3x);
}
static int
-tic4x_indirect_parse (operand, indirect)
- tic4x_operand_t *operand;
- const tic4x_indirect_t *indirect;
+tic4x_indirect_parse (tic4x_operand_t *operand,
+ const tic4x_indirect_t *indirect)
{
char *n = indirect->name;
char *s = input_line_pointer;
}
static char *
-tic4x_operand_parse (s, operand)
- char *s;
- tic4x_operand_t *operand;
+tic4x_operand_parse (char *s, tic4x_operand_t *operand)
{
unsigned int i;
char c;
}
static int
-tic4x_operands_match (inst, insn, check)
- tic4x_inst_t *inst;
- tic4x_insn_t *insn;
- int check;
+tic4x_operands_match (tic4x_inst_t *inst, tic4x_insn_t *insn, int check)
{
const char *args = inst->args;
unsigned long opcode = inst->opcode;
}
static void
-tic4x_insn_check (insn)
- tic4x_insn_t *insn;
+tic4x_insn_check (tic4x_insn_t *insn)
{
if (!strcmp(insn->name, "lda"))
}
static void
-tic4x_insn_output (insn)
- tic4x_insn_t *insn;
+tic4x_insn_output (tic4x_insn_t *insn)
{
char *dst;
}
/* Parse the operands. */
-int
-tic4x_operands_parse (s, operands, num_operands)
- char *s;
- tic4x_operand_t *operands;
- int num_operands;
+static int
+tic4x_operands_parse (char *s, tic4x_operand_t *operands, int num_operands)
{
if (!*s)
return num_operands;
by the generic front end. We just parse mnemonic and operands, and
produce the bytes of data and relocation. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
int ok = 0;
char *s;
}
void
-tic4x_cleanup ()
+tic4x_cleanup (void)
{
if (insn->in_use)
md_assemble (NULL);
/* Turn a string in input_line_pointer into a floating point constant
of type type, and store the appropriate bytes in *litP. The number
- of LITTLENUMS emitted is stored in *sizeP. An error message is
+ of chars emitted is stored in *sizeP. An error message is
returned, or NULL on OK. */
char *
-md_atof (type, litP, sizeP)
- int type;
- char *litP;
- int *sizeP;
+md_atof (int type, char *litP, int *sizeP)
{
int prec;
int ieee;
switch (type)
{
- case 's': /* .single */
+ case 's': /* .single */
case 'S':
ieee = 0;
prec = 1;
break;
- case 'd': /* .double */
+ case 'd': /* .double */
case 'D':
- case 'f': /* .float or .single */
+ case 'f': /* .float */
case 'F':
ieee = 0;
- prec = 2; /* 1 32-bit word */
+ prec = 2; /* 1 32-bit word */
break;
- case 'i': /* .ieee */
+ case 'i': /* .ieee */
case 'I':
prec = 2;
ieee = 1;
- type = 'f'; /* Rewrite type to be usable by atof_ieee() */
+ type = 'f'; /* Rewrite type to be usable by atof_ieee(). */
break;
- case 'e': /* .ldouble */
+ case 'e': /* .ldouble */
case 'E':
- prec = 4; /* 2 32-bit words */
+ prec = 4; /* 2 32-bit words */
ieee = 0;
break;
default:
*sizeP = 0;
- return "Bad call to md_atof()";
+ return _("Unrecognized or unsupported floating point constant");
}
if (ieee)
little endian byte order. */
/* SES: However it is required to put the words (32-bits) out in the
correct order, hence we write 2 and 2 littlenums in little endian
- order, while we keep the original order on successive words. */
- for(wordP = words; wordP<(words+prec) ; wordP+=2)
+ order, while we keep the original order on successive words. */
+ for (wordP = words; wordP<(words+prec) ; wordP+=2)
{
- if (wordP<(words+prec-1)) /* Dump wordP[1] (if we have one) */
+ if (wordP < (words + prec - 1)) /* Dump wordP[1] (if we have one). */
{
md_number_to_chars (litP, (valueT) (wordP[1]),
sizeof (LITTLENUM_TYPE));
sizeof (LITTLENUM_TYPE));
litP += sizeof (LITTLENUM_TYPE);
}
- return 0;
+ return NULL;
}
void
-md_apply_fix (fixP, value, seg)
- fixS *fixP;
- valueT *value;
- segT seg ATTRIBUTE_UNUSED;
+md_apply_fix (fixS *fixP, valueT *value, segT seg ATTRIBUTE_UNUSED)
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
valueT val = *value;
/* Should never be called for tic4x. */
void
-md_convert_frag (headers, sec, fragP)
- bfd *headers ATTRIBUTE_UNUSED;
- segT sec ATTRIBUTE_UNUSED;
- fragS *fragP ATTRIBUTE_UNUSED;
+md_convert_frag (bfd *headers ATTRIBUTE_UNUSED,
+ segT sec ATTRIBUTE_UNUSED,
+ fragS *fragP ATTRIBUTE_UNUSED)
{
as_fatal ("md_convert_frag");
}
/* Should never be called for tic4x. */
void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr ATTRIBUTE_UNUSED;
- addressT from_addr ATTRIBUTE_UNUSED;
- addressT to_addr ATTRIBUTE_UNUSED;
- fragS *frag ATTRIBUTE_UNUSED;
- symbolS *to_symbol ATTRIBUTE_UNUSED;
+md_create_short_jump (char *ptr ATTRIBUTE_UNUSED,
+ addressT from_addr ATTRIBUTE_UNUSED,
+ addressT to_addr ATTRIBUTE_UNUSED,
+ fragS *frag ATTRIBUTE_UNUSED,
+ symbolS *to_symbol ATTRIBUTE_UNUSED)
{
as_fatal ("md_create_short_jmp\n");
}
/* Should never be called for tic4x. */
void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr ATTRIBUTE_UNUSED;
- addressT from_addr ATTRIBUTE_UNUSED;
- addressT to_addr ATTRIBUTE_UNUSED;
- fragS *frag ATTRIBUTE_UNUSED;
- symbolS *to_symbol ATTRIBUTE_UNUSED;
+md_create_long_jump (char *ptr ATTRIBUTE_UNUSED,
+ addressT from_addr ATTRIBUTE_UNUSED,
+ addressT to_addr ATTRIBUTE_UNUSED,
+ fragS *frag ATTRIBUTE_UNUSED,
+ symbolS *to_symbol ATTRIBUTE_UNUSED)
{
as_fatal ("md_create_long_jump\n");
}
/* Should never be called for tic4x. */
int
-md_estimate_size_before_relax (fragP, segtype)
- register fragS *fragP ATTRIBUTE_UNUSED;
- segT segtype ATTRIBUTE_UNUSED;
+md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED,
+ segT segtype ATTRIBUTE_UNUSED)
{
as_fatal ("md_estimate_size_before_relax\n");
return 0;
int
-md_parse_option (c, arg)
- int c;
- char *arg;
+md_parse_option (int c, char *arg)
{
switch (c)
{
}
void
-md_show_usage (stream)
- FILE *stream;
+md_show_usage (FILE *stream)
{
fprintf (stream,
_("\nTIC4X options:\n"
definitions of TI C3x tools style local labels $n where n is a single
decimal digit. */
int
-tic4x_unrecognized_line (c)
- int c;
+tic4x_unrecognized_line (int c)
{
int lab;
char *s;
/* Handle local labels peculiar to us referred to in an expression. */
symbolS *
-md_undefined_symbol (name)
- char *name;
+md_undefined_symbol (char *name)
{
/* Look for local labels of the form $n. */
if (name[0] == '$' && ISDIGIT (name[1]))
/* Parse an operand that is machine-specific. */
void
-md_operand (expressionP)
- expressionS *expressionP ATTRIBUTE_UNUSED;
+md_operand (expressionS *expressionP ATTRIBUTE_UNUSED)
{
}
/* Round up a section size to the appropriate boundary---do we need this? */
valueT
-md_section_align (segment, size)
- segT segment ATTRIBUTE_UNUSED;
- valueT size;
+md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size)
{
return size; /* Byte (i.e., 32-bit) alignment is fine? */
}
static int
-tic4x_pc_offset (op)
- unsigned int op;
+tic4x_pc_offset (unsigned int op)
{
/* Determine the PC offset for a C[34]x instruction.
This could be simplified using some boolean algebra
DBcondD, BcondD disp + PC + 3 => PC
*/
long
-md_pcrel_from (fixP)
- fixS *fixP;
+md_pcrel_from (fixS *fixP)
{
unsigned char *buf;
unsigned int op;
/* Fill the alignment area with NOP's on .text, unless fill-data
was specified. */
int
-tic4x_do_align (alignment, fill, len, max)
- int alignment ATTRIBUTE_UNUSED;
- const char *fill ATTRIBUTE_UNUSED;
- int len ATTRIBUTE_UNUSED;
- int max ATTRIBUTE_UNUSED;
+tic4x_do_align (int alignment ATTRIBUTE_UNUSED,
+ const char *fill ATTRIBUTE_UNUSED,
+ int len ATTRIBUTE_UNUSED,
+ int max ATTRIBUTE_UNUSED)
{
unsigned long nop = TIC_NOP_OPCODE;
/* Look for and remove parallel instruction operator ||. */
void
-tic4x_start_line ()
+tic4x_start_line (void)
{
char *s = input_line_pointer;
}
arelent *
-tc_gen_reloc (seg, fixP)
- asection *seg ATTRIBUTE_UNUSED;
- fixS *fixP;
+tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixP)
{
arelent *reloc;
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