/* tc-c30.c -- Assembly code for the Texas Instruments TMS320C30
- Copyright (C) 1998 Free Software Foundation.
+ Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2009
+ Free Software Foundation, Inc.
Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
This file is part of GAS, the GNU Assembler.
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,
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, 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"
-/* put here all non-digit non-letter charcters that may occur in an operand */
+/* Put here all non-digit non-letter characters that may occur in an
+ operand. */
static char operand_special_chars[] = "%$-+(,)*._~/<>&^!:[@]";
static char *ordinal_names[] =
-{"first", "second", "third", "fourth", "fifth"};
-
-const int md_reloc_size = 0;
-int md_long_jump_size = 0;
-int md_short_jump_size = 0;
+{
+ N_("first"), N_("second"), N_("third"), N_("fourth"), N_("fifth")
+};
-const char comment_chars[] = ";";
-const char line_comment_chars[] = "*";
+const char comment_chars[] = ";";
+const char line_comment_chars[] = "*";
const char line_separator_chars[] = "";
const char *md_shortopts = "";
size_t md_longopts_size = sizeof (md_longopts);
-/* Chars that mean this number is a floating point constant */
-/* As in 0f12.456 */
-/* or 0d1.2345e12 */
+/* 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 */
+/* Tables for lexical analysis. */
static char opcode_chars[256];
static char register_chars[256];
static char operand_chars[256];
static char identifier_chars[256];
static char digit_chars[256];
-/* lexical macros */
-#define is_opcode_char(x) (opcode_chars[(unsigned char) x])
-#define is_operand_char(x) (operand_chars[(unsigned char) x])
-#define is_register_char(x) (register_chars[(unsigned char) x])
-#define is_space_char(x) (space_chars[(unsigned char) x])
-#define is_identifier_char(x) (identifier_chars[(unsigned char) x])
-#define is_digit_char(x) (digit_chars[(unsigned char) x])
+/* Lexical macros. */
+#define is_opcode_char(x) (opcode_chars [(unsigned char) x])
+#define is_operand_char(x) (operand_chars [(unsigned char) x])
+#define is_register_char(x) (register_chars [(unsigned char) x])
+#define is_space_char(x) (space_chars [(unsigned char) x])
+#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[] =
{
{0, 0, 0}
};
-#undef USE_STDOUT
-#define USE_STDOUT 1
-
-#ifdef USE_STDARG
-
-#include <stdarg.h>
-
-int
-debug (const char *string,...)
+static int ATTRIBUTE_PRINTF_1
+debug (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 */
+/* Hash table for opcode lookup. */
static struct hash_control *op_hash;
-/* hash table for parallel opcode lookup */
+/* Hash table for parallel opcode lookup. */
static struct hash_control *parop_hash;
-/* hash table for register lookup */
+/* Hash table for register lookup. */
static struct hash_control *reg_hash;
-/* hash table for indirect addressing lookup */
+/* Hash table for indirect addressing lookup. */
static struct hash_control *ind_hash;
void
-md_begin ()
+md_begin (void)
{
const char *hash_err;
+
debug ("In md_begin()\n");
op_hash = hash_new ();
+
{
- const template *current_optab = tic30_optab;
+ const insn_template *current_optab = tic30_optab;
+
for (; current_optab < tic30_optab_end; current_optab++)
{
- hash_err = hash_insert (op_hash, current_optab->name, (char *) current_optab);
+ hash_err = hash_insert (op_hash, current_optab->name,
+ (char *) current_optab);
if (hash_err)
- as_fatal ("Internal Error: Can't Hash %s: %s", current_optab->name, hash_err);
+ as_fatal ("Internal Error: Can't Hash %s: %s",
+ current_optab->name, hash_err);
}
}
+
parop_hash = hash_new ();
+
{
const partemplate *current_parop = tic30_paroptab;
+
for (; current_parop < tic30_paroptab_end; current_parop++)
{
- hash_err = hash_insert (parop_hash, current_parop->name, (char *) current_parop);
+ hash_err = hash_insert (parop_hash, current_parop->name,
+ (char *) current_parop);
if (hash_err)
- as_fatal ("Internal Error: Can't Hash %s: %s", current_parop->name, hash_err);
+ as_fatal ("Internal Error: Can't Hash %s: %s",
+ current_parop->name, hash_err);
}
}
+
reg_hash = hash_new ();
+
{
const reg *current_reg = tic30_regtab;
+
for (; current_reg < tic30_regtab_end; current_reg++)
{
- hash_err = hash_insert (reg_hash, current_reg->name, (char *) current_reg);
+ hash_err = hash_insert (reg_hash, current_reg->name,
+ (char *) current_reg);
if (hash_err)
- as_fatal ("Internal Error: Can't Hash %s: %s", current_reg->name, hash_err);
+ as_fatal ("Internal Error: Can't Hash %s: %s",
+ current_reg->name, hash_err);
}
}
+
ind_hash = hash_new ();
+
{
const ind_addr_type *current_ind = tic30_indaddr_tab;
+
for (; current_ind < tic30_indaddrtab_end; current_ind++)
{
- hash_err = hash_insert (ind_hash, current_ind->syntax, (char *) current_ind);
+ hash_err = hash_insert (ind_hash, current_ind->syntax,
+ (char *) current_ind);
if (hash_err)
- as_fatal ("Internal Error: Can't Hash %s: %s", current_ind->syntax, hash_err);
+ as_fatal ("Internal Error: Can't Hash %s: %s",
+ current_ind->syntax, hash_err);
}
}
- /* fill in lexical tables: opcode_chars, operand_chars, space_chars */
+
+ /* Fill in lexical tables: opcode_chars, operand_chars, space_chars. */
{
- register int c;
- register char *p;
+ int c;
+ char *p;
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))
+ register_chars[c] = 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;
+
if (c == '_')
opcode_chars[c] = c;
}
}
}
-/* Address Mode OR values */
+/* Address Mode OR values. */
#define AM_Register 0x00000000
#define AM_Direct 0x00200000
#define AM_Indirect 0x00400000
#define AM_Immediate 0x00600000
#define AM_NotReq 0xFFFFFFFF
-/* PC Relative OR values */
+/* PC Relative OR values. */
#define PC_Register 0x00000000
#define PC_Relative 0x02000000
{
unsigned op_type;
struct
- {
- int resolved;
- unsigned address;
- char *label;
- expressionS direct_expr;
- }
- direct;
+ {
+ int resolved;
+ unsigned address;
+ char *label;
+ expressionS direct_expr;
+ } direct;
struct
- {
- unsigned mod;
- int ARnum;
- unsigned char disp;
- }
- indirect;
+ {
+ unsigned mod;
+ int ARnum;
+ unsigned char disp;
+ } indirect;
struct
- {
- unsigned opcode;
- }
- reg;
+ {
+ 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 *));
-char *tic30_find_parallel_insn PARAMS ((char *, char *));
-
-template *opcode;
+ {
+ int resolved;
+ int decimal_found;
+ float f_number;
+ int s_number;
+ unsigned int u_number;
+ char *label;
+ expressionS imm_expr;
+ } immediate;
+} operand;
+
+insn_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 */
- };
+{
+ 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;
-void
-md_assemble (line)
- char *line;
-{
- template *opcode;
- char *current_posn;
- char *token_start;
- char save_char;
- int count;
+static char output_invalid_buf[sizeof (unsigned char) * 2 + 6];
- debug ("In md_assemble() with argument %s\n", line);
- memset (&insn, '\0', sizeof (insn));
- if (found_parallel_insn)
- {
- debug ("Line is second part of parallel instruction\n\n");
- found_parallel_insn = 0;
- return;
- }
- if ((current_posn = tic30_find_parallel_insn (line, input_line_pointer + 1)) == NULL)
- current_posn = line;
+static char *
+output_invalid (char c)
+{
+ if (ISPRINT (c))
+ snprintf (output_invalid_buf, sizeof (output_invalid_buf),
+ "'%c'", c);
else
- found_parallel_insn = 1;
- while (is_space_char (*current_posn))
- current_posn++;
- token_start = current_posn;
- if (!is_opcode_char (*current_posn))
- {
- as_bad ("Invalid character %s in opcode", output_invalid (*current_posn));
- return;
- }
- /* Check if instruction is a parallel instruction by seeing if the first
- character is a q. */
- if (*token_start == 'q')
+ snprintf (output_invalid_buf, sizeof (output_invalid_buf),
+ "(0x%x)", (unsigned char) c);
+ return output_invalid_buf;
+}
+
+/* next_line points to the next line after the current instruction
+ (current_line). Search for the parallel bars, and if found, merge two
+ lines into internal syntax for a parallel instruction:
+ q_[INSN1]_[INSN2] [OPERANDS1] | [OPERANDS2]
+ By this stage, all comments are scrubbed, and only the bare lines are
+ given. */
+
+#define NONE 0
+#define START_OPCODE 1
+#define END_OPCODE 2
+#define START_OPERANDS 3
+#define END_OPERANDS 4
+
+static char *
+tic30_find_parallel_insn (char *current_line, char *next_line)
+{
+ int found_parallel = 0;
+ char first_opcode[256];
+ char second_opcode[256];
+ char first_operands[256];
+ char second_operands[256];
+ char *parallel_insn;
+
+ debug ("In tic30_find_parallel_insn()\n");
+ while (!is_end_of_line[(unsigned char) *next_line])
{
- if (tic30_parallel_insn (token_start))
+ if (*next_line == PARALLEL_SEPARATOR
+ && *(next_line + 1) == PARALLEL_SEPARATOR)
{
- if (found_parallel_insn)
- free (token_start);
- return;
+ found_parallel = 1;
+ next_line++;
+ break;
}
+ next_line++;
}
- while (is_opcode_char (*current_posn))
- current_posn++;
- { /* Find instruction */
- save_char = *current_posn;
- *current_posn = '\0';
- opcode = (template *) hash_find (op_hash, token_start);
- if (opcode)
- {
- debug ("Found instruction %s\n", opcode->name);
- insn.tm = opcode;
- }
- else
+ if (!found_parallel)
+ return NULL;
+ debug ("Found a parallel instruction\n");
+
+ {
+ int i;
+ char *op, *operands, *line;
+
+ for (i = 0; i < 2; i++)
{
- debug ("Didn't find insn\n");
- as_bad ("Unknown TMS320C30 instruction: %s", token_start);
- return;
- }
- *current_posn = save_char;
- }
- if (*current_posn != END_OF_INSN)
- { /* Find operands */
- int paren_not_balanced;
- int expecting_operand = 0;
- int this_operand;
- do
+ if (i == 0)
+ {
+ op = &first_opcode[0];
+ operands = &first_operands[0];
+ line = current_line;
+ }
+ else
+ {
+ op = &second_opcode[0];
+ operands = &second_operands[0];
+ line = next_line;
+ }
+
{
- /* skip optional white space before operand */
- while (!is_operand_char (*current_posn) && *current_posn != END_OF_INSN)
- {
- if (!is_space_char (*current_posn))
- {
- as_bad ("Invalid character %s before %s operand",
- output_invalid (*current_posn),
- ordinal_names[insn.operands]);
- return;
- }
- current_posn++;
- }
- token_start = current_posn; /* after white space */
- paren_not_balanced = 0;
- while (paren_not_balanced || *current_posn != ',')
+ int search_status = NONE;
+ int char_ptr = 0;
+ char c;
+
+ while (!is_end_of_line[(unsigned char) (c = *line)])
{
- if (*current_posn == END_OF_INSN)
- {
- if (paren_not_balanced)
- {
- as_bad ("Unbalanced parenthesis in %s operand.",
- ordinal_names[insn.operands]);
- return;
- }
- else
- break; /* we are done */
- }
- else if (!is_operand_char (*current_posn) && !is_space_char (*current_posn))
- {
- as_bad ("Invalid character %s in %s operand",
- output_invalid (*current_posn),
- ordinal_names[insn.operands]);
- return;
- }
- if (*current_posn == '(')
- ++paren_not_balanced;
- if (*current_posn == ')')
- --paren_not_balanced;
- current_posn++;
- }
- if (current_posn != token_start)
- { /* yes, we've read in another operand */
- this_operand = insn.operands++;
- if (insn.operands > MAX_OPERANDS)
+ if (is_opcode_char (c) && search_status == NONE)
{
- as_bad ("Spurious operands; (%d operands/instruction max)",
- MAX_OPERANDS);
- return;
+ op[char_ptr++] = TOLOWER (c);
+ search_status = START_OPCODE;
}
- /* now parse operand adding info to 'insn' as we go along */
- save_char = *current_posn;
- *current_posn = '\0';
- insn.operand_type[this_operand] = tic30_operand (token_start);
- *current_posn = save_char;
- if (insn.operand_type[this_operand] == NULL)
- return;
- }
- else
- {
- if (expecting_operand)
+ else if (is_opcode_char (c) && search_status == START_OPCODE)
+ op[char_ptr++] = TOLOWER (c);
+ else if (!is_opcode_char (c) && search_status == START_OPCODE)
{
- as_bad ("Expecting operand after ','; got nothing");
- return;
+ op[char_ptr] = '\0';
+ char_ptr = 0;
+ search_status = END_OPCODE;
}
- if (*current_posn == ',')
+ else if (is_operand_char (c) && search_status == START_OPERANDS)
+ operands[char_ptr++] = c;
+
+ if (is_operand_char (c) && search_status == END_OPCODE)
{
- as_bad ("Expecting operand before ','; got nothing");
- return;
- }
- }
- /* now *current_posn must be either ',' or END_OF_INSN */
- if (*current_posn == ',')
- {
- if (*++current_posn == END_OF_INSN)
- { /* just skip it, if it's \n complain */
- as_bad ("Expecting operand after ','; got nothing");
- return;
+ operands[char_ptr++] = c;
+ search_status = START_OPERANDS;
}
- expecting_operand = 1;
+
+ line++;
}
+ if (search_status != START_OPERANDS)
+ return NULL;
+ operands[char_ptr] = '\0';
}
- while (*current_posn != END_OF_INSN); /* until we get end of insn */
- }
- debug ("Number of operands found: %d\n", insn.operands);
- /* Check that number of operands is correct */
- if (insn.operands != insn.tm->operands)
+ }
+ }
+ parallel_insn = malloc (strlen (first_opcode) + strlen (first_operands)
+ + strlen (second_opcode) + strlen (second_operands) + 8);
+ sprintf (parallel_insn, "q_%s_%s %s | %s",
+ first_opcode, second_opcode,
+ first_operands, second_operands);
+ debug ("parallel insn = %s\n", parallel_insn);
+ return parallel_insn;
+}
+
+#undef NONE
+#undef START_OPCODE
+#undef END_OPCODE
+#undef START_OPERANDS
+#undef END_OPERANDS
+
+static operand *
+tic30_operand (char *token)
+{
+ unsigned int count;
+ char ind_buffer[strlen (token)];
+ operand *current_op;
+
+ debug ("In tic30_operand with %s\n", token);
+ current_op = malloc (sizeof (* current_op));
+ memset (current_op, '\0', sizeof (operand));
+
+ if (*token == DIRECT_REFERENCE)
{
- int i;
- 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. */
- for (i = 0; i < insn.tm->operands; i++)
- if (insn.tm->operand_types[i] & NotReq)
- numops--;
- if (insn.operands != numops)
+ char *token_posn = token + 1;
+ int direct_label = 0;
+
+ debug ("Found direct reference\n");
+ while (*token_posn)
{
- as_bad ("Incorrect number of operands given");
- return;
- }
- }
- insn.addressing_mode = AM_NotReq;
- for (count = 0; count < insn.operands; count++)
- {
- if (insn.operand_type[count]->op_type & insn.tm->operand_types[count])
- {
- debug ("Operand %d matches\n", count + 1);
- /* If instruction has two operands and has an AddressMode modifier then set
- addressing mode type for instruction */
- if (insn.tm->opcode_modifier == AddressMode)
- {
- int addr_insn = 0;
- /* 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))
- insn.addressing_mode = AM_Register;
- else if (insn.operand_type[addr_insn]->op_type & Direct)
- insn.addressing_mode = AM_Direct;
- else if (insn.operand_type[addr_insn]->op_type & Indirect)
- insn.addressing_mode = AM_Indirect;
- else
- insn.addressing_mode = AM_Immediate;
- }
- }
- else
- {
- as_bad ("The %s operand doesn't match", ordinal_names[count]);
- return;
+ if (!is_digit_char (*token_posn))
+ direct_label = 1;
+ token_posn++;
}
- }
- /* 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. */
- char *p;
- switch (insn.operand_type[0]->op_type)
+
+ if (direct_label)
{
- case Rn:
- case ARn:
- case DPReg:
- case OtherReg:
- if (insn.operand_type[1]->op_type & (AllReg))
- insn.addressing_mode = AM_Register;
- else if (insn.operand_type[1]->op_type & Indirect)
- insn.addressing_mode = AM_Direct;
- else
- {
- /* Shouldn't make it to this stage */
- as_bad ("Incompatible first and second operands in instruction");
- return;
- }
- break;
- case Indirect:
- if (insn.operand_type[1]->op_type & (AllReg))
- insn.addressing_mode = AM_Indirect;
- else if (insn.operand_type[1]->op_type & Indirect)
- insn.addressing_mode = AM_Immediate;
- else
+ char *save_input_line_pointer;
+ segT retval;
+
+ debug ("Direct reference is a label\n");
+ current_op->direct.label = token + 1;
+ save_input_line_pointer = input_line_pointer;
+ input_line_pointer = token + 1;
+ debug ("Current input_line_pointer: %s\n", input_line_pointer);
+ retval = expression (¤t_op->direct.direct_expr);
+
+ debug ("Expression type: %d\n",
+ current_op->direct.direct_expr.X_op);
+ debug ("Expression addnum: %ld\n",
+ (long) current_op->direct.direct_expr.X_add_number);
+ debug ("Segment: %p\n", retval);
+
+ input_line_pointer = save_input_line_pointer;
+
+ if (current_op->direct.direct_expr.X_op == O_constant)
{
- /* Shouldn't make it to this stage */
- as_bad ("Incompatible first and second operands in instruction");
- return;
+ current_op->direct.address =
+ current_op->direct.direct_expr.X_add_number;
+ current_op->direct.resolved = 1;
}
- break;
- }
- /* 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. */
- insn.opcode = insn.tm->base_opcode;
- if (insn.operand_type[0]->op_type & Indirect)
- {
- insn.opcode |= (insn.operand_type[0]->indirect.ARnum);
- insn.opcode |= (insn.operand_type[0]->indirect.mod << 3);
}
else
- insn.opcode |= (insn.operand_type[0]->reg.opcode);
- if (insn.operand_type[1]->op_type & Indirect)
{
- insn.opcode |= (insn.operand_type[1]->indirect.ARnum << 8);
- insn.opcode |= (insn.operand_type[1]->indirect.mod << 11);
+ debug ("Direct reference is a number\n");
+ current_op->direct.address = atoi (token + 1);
+ current_op->direct.resolved = 1;
}
- else
- insn.opcode |= (insn.operand_type[1]->reg.opcode << 8);
- if (insn.operands == 3)
- insn.opcode |= (insn.operand_type[2]->reg.opcode << 16);
- insn.opcode |= insn.addressing_mode;
- p = frag_more (INSN_SIZE);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ current_op->op_type = Direct;
}
- else
- { /* Not a three operand instruction */
- char *p;
- int am_insn = -1;
- insn.opcode = insn.tm->base_opcode;
- /* Create frag for instruction - all instructions are 4 bytes long. */
- p = frag_more (INSN_SIZE);
- if ((insn.operands > 0) && (insn.tm->opcode_modifier == AddressMode))
+ else if (*token == INDIRECT_REFERENCE)
+ {
+ /* Indirect reference operand. */
+ int found_ar = 0;
+ int found_disp = 0;
+ int ar_number = -1;
+ int disp_number = 0;
+ int buffer_posn = 1;
+ ind_addr_type *ind_addr_op;
+
+ debug ("Found indirect reference\n");
+ ind_buffer[0] = *token;
+
+ for (count = 1; count < strlen (token); count++)
{
- insn.opcode |= insn.addressing_mode;
- if (insn.addressing_mode == AM_Indirect)
- {
- /* Determine which operand gives the addressing mode */
- if (insn.operand_type[0]->op_type & Indirect)
- am_insn = 0;
- if ((insn.operands > 1) && (insn.operand_type[1]->op_type & Indirect))
- am_insn = 1;
- insn.opcode |= (insn.operand_type[am_insn]->indirect.disp);
- insn.opcode |= (insn.operand_type[am_insn]->indirect.ARnum << 8);
- insn.opcode |= (insn.operand_type[am_insn]->indirect.mod << 11);
- if (insn.operands > 1)
- insn.opcode |= (insn.operand_type[!am_insn]->reg.opcode << 16);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else if (insn.addressing_mode == AM_Register)
- {
- insn.opcode |= (insn.operand_type[0]->reg.opcode);
- if (insn.operands > 1)
- insn.opcode |= (insn.operand_type[1]->reg.opcode << 16);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else if (insn.addressing_mode == AM_Direct)
+ /* Strip operand. */
+ ind_buffer[buffer_posn] = TOLOWER (*(token + count));
+
+ if ((*(token + count - 1) == 'a' || *(token + count - 1) == 'A')
+ && (*(token + count) == 'r' || *(token + count) == 'R'))
{
- if (insn.operand_type[0]->op_type & Direct)
- am_insn = 0;
- if ((insn.operands > 1) && (insn.operand_type[1]->op_type & Direct))
- am_insn = 1;
- if (insn.operands > 1)
- insn.opcode |= (insn.operand_type[!am_insn]->reg.opcode << 16);
- if (insn.operand_type[am_insn]->direct.resolved == 1)
+ /* AR reference is found, so get its number and remove
+ it from the buffer so it can pass through hash_find(). */
+ if (found_ar)
{
- /* Resolved values can be placed straight into instruction word, and output */
- insn.opcode |= (insn.operand_type[am_insn]->direct.address & 0x0000FFFF);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ as_bad (_("More than one AR register found in indirect reference"));
+ return NULL;
}
- else
- { /* Unresolved direct addressing mode instruction */
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- fix_new_exp (frag_now, p + 2 - (frag_now->fr_literal), 2, &insn.operand_type[am_insn]->direct.direct_expr, 0, 0);
+ if (*(token + count + 1) < '0' || *(token + count + 1) > '7')
+ {
+ as_bad (_("Illegal AR register in indirect reference"));
+ return NULL;
}
+ ar_number = *(token + count + 1) - '0';
+ found_ar = 1;
+ count++;
}
- else if (insn.addressing_mode == AM_Immediate)
+
+ if (*(token + count) == '(')
{
- if (insn.operand_type[0]->immediate.resolved == 1)
+ /* Parenthesis found, so check if a displacement value is
+ inside. If so, get the value and remove it from the
+ buffer. */
+ if (is_digit_char (*(token + count + 1)))
{
- char *keeploc;
- int size;
- if (insn.operands > 1)
- insn.opcode |= (insn.operand_type[1]->reg.opcode << 16);
- switch (insn.tm->imm_arg_type)
+ char disp[10];
+ int disp_posn = 0;
+
+ if (found_disp)
{
- case Imm_Float:
- debug ("Floating point first operand\n");
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- keeploc = input_line_pointer;
- input_line_pointer = insn.operand_type[0]->immediate.label;
- if (md_atof ('f', p + 2, &size) != 0)
- {
- as_bad ("invalid short form floating point immediate operand");
- return;
- }
- input_line_pointer = keeploc;
- break;
- case Imm_UInt:
- debug ("Unsigned int first operand\n");
- if (insn.operand_type[0]->immediate.decimal_found)
- as_warn ("rounding down first operand float to unsigned int");
- if (insn.operand_type[0]->immediate.u_number > 0xFFFF)
- as_warn ("only lower 16-bits of first operand are used");
- insn.opcode |= (insn.operand_type[0]->immediate.u_number & 0x0000FFFFL);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- break;
- case Imm_SInt:
- debug ("Int first operand\n");
- if (insn.operand_type[0]->immediate.decimal_found)
- as_warn ("rounding down first operand float to signed int");
- if (insn.operand_type[0]->immediate.s_number < -32768 ||
- insn.operand_type[0]->immediate.s_number > 32767)
+ as_bad (_("More than one displacement found in indirect reference"));
+ return NULL;
+ }
+ count++;
+ while (*(token + count) != ')')
+ {
+ if (!is_digit_char (*(token + count)))
{
- as_bad ("first operand is too large for 16-bit signed int");
- return;
+ as_bad (_("Invalid displacement in indirect reference"));
+ return NULL;
}
- insn.opcode |= (insn.operand_type[0]->immediate.s_number & 0x0000FFFFL);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- break;
+ disp[disp_posn++] = *(token + (count++));
}
- }
- else
- { /* Unresolved immediate label */
- if (insn.operands > 1)
- insn.opcode |= (insn.operand_type[1]->reg.opcode << 16);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- fix_new_exp (frag_now, p + 2 - (frag_now->fr_literal), 2, &insn.operand_type[0]->immediate.imm_expr, 0, 0);
+ disp[disp_posn] = '\0';
+ disp_number = atoi (disp);
+ count--;
+ found_disp = 1;
}
}
+ buffer_posn++;
}
- else if (insn.tm->opcode_modifier == PCRel)
+
+ ind_buffer[buffer_posn] = '\0';
+ if (!found_ar)
+ {
+ as_bad (_("AR register not found in indirect reference"));
+ return NULL;
+ }
+
+ ind_addr_op = (ind_addr_type *) hash_find (ind_hash, ind_buffer);
+ if (ind_addr_op)
{
- /* Conditional Branch and Call instructions */
- if ((insn.tm->operand_types[0] & (AllReg | Disp)) == (AllReg | Disp))
+ debug ("Found indirect reference: %s\n", ind_addr_op->syntax);
+ if (ind_addr_op->displacement == IMPLIED_DISP)
{
- if (insn.operand_type[0]->op_type & (AllReg))
- {
- insn.opcode |= (insn.operand_type[0]->reg.opcode);
- insn.opcode |= PC_Register;
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else
- {
- insn.opcode |= PC_Relative;
- if (insn.operand_type[0]->immediate.resolved == 1)
- {
- insn.opcode |= (insn.operand_type[0]->immediate.s_number & 0x0000FFFF);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else
- {
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- fix_new_exp (frag_now, p + 2 - (frag_now->fr_literal), 2, &insn.operand_type[0]->immediate.imm_expr, 1, 0);
- }
- }
+ found_disp = 1;
+ disp_number = 1;
}
- else if ((insn.tm->operand_types[0] & ARn) == ARn)
+ else if ((ind_addr_op->displacement == DISP_REQUIRED) && !found_disp)
{
- /* Decrement and Branch instructions */
- insn.opcode |= ((insn.operand_type[0]->reg.opcode - 0x08) << 22);
- if (insn.operand_type[1]->op_type & (AllReg))
- {
- insn.opcode |= (insn.operand_type[1]->reg.opcode);
- insn.opcode |= PC_Register;
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else if (insn.operand_type[1]->immediate.resolved == 1)
- {
- if (insn.operand_type[0]->immediate.decimal_found)
- {
- as_bad ("first operand is floating point");
- return;
- }
- if (insn.operand_type[0]->immediate.s_number < -32768 ||
- insn.operand_type[0]->immediate.s_number > 32767)
- {
- as_bad ("first operand is too large for 16-bit signed int");
- return;
- }
- insn.opcode |= (insn.operand_type[1]->immediate.s_number);
- insn.opcode |= PC_Relative;
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else
- {
- insn.opcode |= PC_Relative;
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- fix_new_exp (frag_now, p + 2 - frag_now->fr_literal, 2, &insn.operand_type[1]->immediate.imm_expr, 1, 0);
- }
+ /* Maybe an implied displacement of 1 again. */
+ as_bad (_("required displacement wasn't given in indirect reference"));
+ return 0;
}
}
- else if (insn.tm->operand_types[0] == IVector)
+ else
{
- /* Trap instructions */
- if (insn.operand_type[0]->op_type & IVector)
- insn.opcode |= (insn.operand_type[0]->immediate.u_number);
- else
- { /* Shouldn't get here */
- as_bad ("interrupt vector for trap instruction out of range");
- return;
- }
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ as_bad (_("illegal indirect reference"));
+ return NULL;
}
- else if (insn.tm->opcode_modifier == StackOp || insn.tm->opcode_modifier == Rotate)
+
+ if (found_disp && (disp_number < 0 || disp_number > 255))
{
- /* Push, Pop and Rotate instructions */
- insn.opcode |= (insn.operand_type[0]->reg.opcode << 16);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ as_bad (_("displacement must be an unsigned 8-bit number"));
+ return NULL;
}
- else if ((insn.tm->operand_types[0] & (Abs24 | Direct)) == (Abs24 | Direct))
+
+ current_op->indirect.mod = ind_addr_op->modfield;
+ current_op->indirect.disp = disp_number;
+ current_op->indirect.ARnum = ar_number;
+ current_op->op_type = Indirect;
+ }
+ else
+ {
+ reg *regop = (reg *) hash_find (reg_hash, token);
+
+ if (regop)
{
- /* LDP Instruction needs to be tested for before the next section */
- if (insn.operand_type[0]->op_type & Direct)
- {
- if (insn.operand_type[0]->direct.resolved == 1)
- {
- /* Direct addressing uses lower 8 bits of direct address */
- insn.opcode |= (insn.operand_type[0]->direct.address & 0x00FF0000) >> 16;
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else
- {
- fixS *fix;
- 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. */
- fix->fx_no_overflow = 1;
- }
- }
+ debug ("Found register operand: %s\n", regop->name);
+ if (regop->regtype == REG_ARn)
+ current_op->op_type = ARn;
+ else if (regop->regtype == REG_Rn)
+ current_op->op_type = Rn;
+ else if (regop->regtype == REG_DP)
+ current_op->op_type = DPReg;
else
- {
- if (insn.operand_type[0]->immediate.resolved == 1)
- {
- /* Immediate addressing uses upper 8 bits of address */
- if (insn.operand_type[0]->immediate.u_number > 0x00FFFFFF)
- {
- as_bad ("LDP instruction needs a 24-bit operand");
- return;
- }
- insn.opcode |= ((insn.operand_type[0]->immediate.u_number & 0x00FF0000) >> 16);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- }
- else
- {
- fixS *fix;
- 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]->immediate.imm_expr, 0, 0);
- fix->fx_no_overflow = 1;
- }
- }
+ current_op->op_type = OtherReg;
+ current_op->reg.opcode = regop->opcode;
}
- else if (insn.tm->operand_types[0] & (Imm24))
+ else
{
- /* Unconditional Branch and Call instructions */
- if (insn.operand_type[0]->immediate.resolved == 1)
+ if (!is_digit_char (*token)
+ || *(token + 1) == 'x'
+ || strchr (token, 'h'))
{
- if (insn.operand_type[0]->immediate.u_number > 0x00FFFFFF)
- as_warn ("first operand is too large for a 24-bit displacement");
- insn.opcode |= (insn.operand_type[0]->immediate.u_number & 0x00FFFFFF);
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ char *save_input_line_pointer;
+ segT retval;
+
+ debug ("Probably a label: %s\n", token);
+ current_op->immediate.label = malloc (strlen (token) + 1);
+ strcpy (current_op->immediate.label, token);
+ current_op->immediate.label[strlen (token)] = '\0';
+ save_input_line_pointer = input_line_pointer;
+ input_line_pointer = token;
+
+ debug ("Current input_line_pointer: %s\n", input_line_pointer);
+ retval = expression (¤t_op->immediate.imm_expr);
+ debug ("Expression type: %d\n",
+ current_op->immediate.imm_expr.X_op);
+ debug ("Expression addnum: %ld\n",
+ (long) current_op->immediate.imm_expr.X_add_number);
+ debug ("Segment: %p\n", retval);
+ input_line_pointer = save_input_line_pointer;
+
+ if (current_op->immediate.imm_expr.X_op == O_constant)
+ {
+ current_op->immediate.s_number
+ = current_op->immediate.imm_expr.X_add_number;
+ current_op->immediate.u_number
+ = (unsigned int) current_op->immediate.imm_expr.X_add_number;
+ current_op->immediate.resolved = 1;
+ }
}
else
{
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
- fix_new_exp (frag_now, p + 1 - (frag_now->fr_literal), 3, &insn.operand_type[0]->immediate.imm_expr, 0, 0);
+ debug ("Found a number or displacement\n");
+ for (count = 0; count < strlen (token); count++)
+ if (*(token + count) == '.')
+ current_op->immediate.decimal_found = 1;
+ current_op->immediate.label = malloc (strlen (token) + 1);
+ strcpy (current_op->immediate.label, token);
+ current_op->immediate.label[strlen (token)] = '\0';
+ current_op->immediate.f_number = (float) atof (token);
+ current_op->immediate.s_number = (int) atoi (token);
+ current_op->immediate.u_number = (unsigned int) atoi (token);
+ current_op->immediate.resolved = 1;
}
- }
- else if (insn.tm->operand_types[0] & NotReq)
- {
- /* 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. */
- md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ current_op->op_type = Disp | Abs24 | Imm16 | Imm24;
+ if (current_op->immediate.u_number <= 31)
+ current_op->op_type |= IVector;
}
}
- debug ("Addressing mode: %08X\n", insn.addressing_mode);
- {
- int i;
- for (i = 0; i < insn.operands; i++)
- {
- if (insn.operand_type[i]->immediate.label)
- free (insn.operand_type[i]->immediate.label);
- free (insn.operand_type[i]);
- }
- }
- debug ("Final opcode: %08X\n", insn.opcode);
- debug ("\n");
+ return current_op;
}
struct tic30_par_insn
{
- partemplate *tm; /* Template of current parallel instruction */
- int operands[2]; /* Number of given operands for each insn */
- /* Type of operand given in instruction */
+ partemplate *tm; /* Template of current parallel instruction. */
+ 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. */
- unsigned p_field; /* Value of p field in multiply add/sub instructions */
- unsigned opcode; /* Final opcode */
+ int swap_operands; /* Whether to swap operands around. */
+ unsigned p_field; /* Value of p field in multiply add/sub instructions. */
+ unsigned opcode; /* Final opcode. */
};
struct tic30_par_insn p_insn;
-int
+static int
tic30_parallel_insn (char *token)
{
static partemplate *p_opcode;
debug ("In tic30_parallel_insn with %s\n", token);
memset (&p_insn, '\0', sizeof (p_insn));
+
while (is_opcode_char (*current_posn))
current_posn++;
- { /* Find instruction */
+ {
+ /* Find instruction. */
save_char = *current_posn;
*current_posn = '\0';
p_opcode = (partemplate *) hash_find (parop_hash, token);
}
else
{
- char first_opcode[6] =
- {0};
- char second_opcode[6] =
- {0};
- int i;
+ char first_opcode[6] = {0};
+ char second_opcode[6] = {0};
+ unsigned int i;
int current_opcode = -1;
int char_ptr = 0;
for (i = 0; i < strlen (token); i++)
{
char ch = *(token + i);
+
if (ch == '_' && current_opcode == -1)
{
current_opcode = 0;
continue;
}
+
if (ch == '_' && current_opcode == 0)
{
current_opcode = 1;
char_ptr = 0;
continue;
}
+
switch (current_opcode)
{
case 0:
break;
}
}
+
debug ("first_opcode = %s\n", first_opcode);
debug ("second_opcode = %s\n", second_opcode);
sprintf (token, "q_%s_%s", second_opcode, first_opcode);
p_opcode = (partemplate *) hash_find (parop_hash, token);
+
if (p_opcode)
{
debug ("Found instruction %s\n", p_opcode->name);
}
*current_posn = save_char;
}
- { /* Find operands */
+
+ {
+ /* Find operands. */
int paren_not_balanced;
int expecting_operand = 0;
int found_separator = 0;
+
do
{
- /* skip optional white space before operand */
- while (!is_operand_char (*current_posn) && *current_posn != END_OF_INSN)
+ /* Skip optional white space before operand. */
+ while (!is_operand_char (*current_posn)
+ && *current_posn != END_OF_INSN)
{
- if (!is_space_char (*current_posn) && *current_posn != PARALLEL_SEPARATOR)
+ if (!is_space_char (*current_posn)
+ && *current_posn != PARALLEL_SEPARATOR)
{
- as_bad ("Invalid character %s before %s operand",
+ as_bad (_("Invalid character %s before %s operand"),
output_invalid (*current_posn),
ordinal_names[insn.operands]);
return 1;
found_separator = 1;
current_posn++;
}
- token_start = current_posn; /* after white space */
+
+ token_start = current_posn;
paren_not_balanced = 0;
+
while (paren_not_balanced || *current_posn != ',')
{
if (*current_posn == END_OF_INSN)
{
if (paren_not_balanced)
{
- as_bad ("Unbalanced parenthesis in %s operand.",
+ as_bad (_("Unbalanced parenthesis in %s operand."),
ordinal_names[insn.operands]);
return 1;
}
else
- break; /* we are done */
+ break;
}
else if (*current_posn == PARALLEL_SEPARATOR)
{
current_posn--;
break;
}
- else if (!is_operand_char (*current_posn) && !is_space_char (*current_posn))
+ else if (!is_operand_char (*current_posn)
+ && !is_space_char (*current_posn))
{
- as_bad ("Invalid character %s in %s operand",
+ as_bad (_("Invalid character %s in %s operand"),
output_invalid (*current_posn),
ordinal_names[insn.operands]);
return 1;
}
+
if (*current_posn == '(')
++paren_not_balanced;
if (*current_posn == ')')
--paren_not_balanced;
current_posn++;
}
+
if (current_posn != token_start)
- { /* yes, we've read in another operand */
+ {
+ /* Yes, we've read in another operand. */
p_insn.operands[found_separator]++;
if (p_insn.operands[found_separator] > MAX_OPERANDS)
{
- as_bad ("Spurious operands; (%d operands/instruction max)",
+ as_bad (_("Spurious operands; (%d operands/instruction max)"),
MAX_OPERANDS);
return 1;
}
- /* now parse operand adding info to 'insn' as we go along */
+
+ /* Now parse operand adding info to 'insn' as we go along. */
save_char = *current_posn;
*current_posn = '\0';
p_insn.operand_type[found_separator][p_insn.operands[found_separator] - 1] =
{
if (expecting_operand)
{
- as_bad ("Expecting operand after ','; got nothing");
+ as_bad (_("Expecting operand after ','; got nothing"));
return 1;
}
if (*current_posn == ',')
{
- as_bad ("Expecting operand before ','; got nothing");
+ as_bad (_("Expecting operand before ','; got nothing"));
return 1;
}
}
- /* now *current_posn must be either ',' or END_OF_INSN */
+
+ /* Now *current_posn must be either ',' or END_OF_INSN. */
if (*current_posn == ',')
{
if (*++current_posn == END_OF_INSN)
- { /* just skip it, if it's \n complain */
- as_bad ("Expecting operand after ','; got nothing");
+ {
+ /* Just skip it, if it's \n complain. */
+ as_bad (_("Expecting operand after ','; got nothing"));
return 1;
}
expecting_operand = 1;
}
}
- while (*current_posn != END_OF_INSN); /* until we get end of insn */
+ while (*current_posn != END_OF_INSN);
}
+
if (p_insn.swap_operands)
{
int temp_num, i;
p_insn.operand_type[1][i] = temp_op;
}
}
+
if (p_insn.operands[0] != p_insn.tm->operands_1)
{
- as_bad ("incorrect number of operands given in the first instruction");
+ as_bad (_("incorrect number of operands given in the first instruction"));
return 1;
}
+
if (p_insn.operands[1] != p_insn.tm->operands_2)
{
- as_bad ("incorrect number of operands given in the second instruction");
+ as_bad (_("incorrect number of operands given in the second instruction"));
return 1;
}
+
debug ("Number of operands in first insn: %d\n", p_insn.operands[0]);
debug ("Number of operands in second insn: %d\n", p_insn.operands[1]);
- { /* Now check if operands are correct */
+
+ {
+ /* Now check if operands are correct. */
int count;
int num_rn = 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 &
p_insn.tm->operand_types[count][i]) == 0)
{
- as_bad ("%s instruction, operand %d doesn't match", ordinal_names[count], i + 1);
+ as_bad (_("%s instruction, operand %d doesn't match"),
+ ordinal_names[count], i + 1);
return 1;
}
- /* 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. */
+
+ /* 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. */
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)
+ else if ((p_insn.operand_type[count][i]->op_type & Indirect)
+ && i < 2)
num_ind++;
}
}
- if ((p_insn.tm->operand_types[0][0] & (Indirect | Rn)) == (Indirect | Rn))
+
+ if ((p_insn.tm->operand_types[0][0] & (Indirect | Rn))
+ == (Indirect | Rn))
{
- /* Check for the multiply instructions */
+ /* Check for the multiply instructions. */
if (num_rn != 2)
{
- as_bad ("incorrect format for multiply parallel instruction");
+ as_bad (_("incorrect format for multiply parallel instruction"));
return 1;
}
+
if (num_ind != 2)
- { /* Shouldn't get here */
- as_bad ("incorrect format for multiply parallel instruction");
+ {
+ /* Shouldn't get here. */
+ as_bad (_("incorrect format for multiply parallel instruction"));
return 1;
}
- if ((p_insn.operand_type[0][2]->reg.opcode != 0x00) &&
- (p_insn.operand_type[0][2]->reg.opcode != 0x01))
+
+ if ((p_insn.operand_type[0][2]->reg.opcode != 0x00)
+ && (p_insn.operand_type[0][2]->reg.opcode != 0x01))
{
- as_bad ("destination for multiply can only be R0 or R1");
+ as_bad (_("destination for multiply can only be R0 or R1"));
return 1;
}
- if ((p_insn.operand_type[1][2]->reg.opcode != 0x02) &&
- (p_insn.operand_type[1][2]->reg.opcode != 0x03))
+
+ if ((p_insn.operand_type[1][2]->reg.opcode != 0x02)
+ && (p_insn.operand_type[1][2]->reg.opcode != 0x03))
{
- as_bad ("destination for add/subtract can only be R2 or R3");
+ as_bad (_("destination for add/subtract can only be R2 or R3"));
return 1;
}
- /* Now determine the P field for the instruction */
+
+ /* Now determine the P field for the instruction. */
if (p_insn.operand_type[0][0]->op_type & Indirect)
{
if (p_insn.operand_type[0][1]->op_type & Indirect)
- p_insn.p_field = 0x00000000; /* Ind * Ind, Rn +/- Rn */
+ p_insn.p_field = 0x00000000; /* Ind * Ind, Rn +/- Rn. */
else if (p_insn.operand_type[1][0]->op_type & Indirect)
- p_insn.p_field = 0x01000000; /* Ind * Rn, Ind +/- Rn */
+ p_insn.p_field = 0x01000000; /* Ind * Rn, Ind +/- Rn. */
else
- p_insn.p_field = 0x03000000; /* Ind * Rn, Rn +/- Ind */
+ p_insn.p_field = 0x03000000; /* Ind * Rn, Rn +/- Ind. */
}
else
{
if (p_insn.operand_type[0][1]->op_type & Rn)
- p_insn.p_field = 0x02000000; /* Rn * Rn, Ind +/- Ind */
+ p_insn.p_field = 0x02000000; /* Rn * Rn, Ind +/- Ind. */
else if (p_insn.operand_type[1][0]->op_type & Indirect)
{
operand *temp;
- p_insn.p_field = 0x01000000; /* Rn * Ind, Ind +/- Rn */
- /* Need to swap the two multiply operands around so that everything is in
- its place for the opcode makeup ie so Ind * Rn, Ind +/- Rn */
+ p_insn.p_field = 0x01000000; /* Rn * Ind, Ind +/- Rn. */
+ /* Need to swap the two multiply operands around so that
+ everything is in its place for the opcode makeup.
+ ie so Ind * Rn, Ind +/- Rn. */
temp = p_insn.operand_type[0][0];
p_insn.operand_type[0][0] = p_insn.operand_type[0][1];
p_insn.operand_type[0][1] = temp;
else
{
operand *temp;
- p_insn.p_field = 0x03000000; /* Rn * Ind, Rn +/- Ind */
+ p_insn.p_field = 0x03000000; /* Rn * Ind, Rn +/- Ind. */
temp = p_insn.operand_type[0][0];
p_insn.operand_type[0][0] = p_insn.operand_type[0][1];
p_insn.operand_type[0][1] = temp;
}
}
}
+
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. */
+
+ /* 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. */
+ p_insn.opcode = p_insn.tm->base_opcode;
+
+ switch (p_insn.tm->oporder)
+ {
+ case OO_4op1:
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 22);
+ break;
+
+ case OO_4op2:
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->reg.opcode << 19);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 22);
+ if (p_insn.operand_type[1][1]->reg.opcode == p_insn.operand_type[0][1]->reg.opcode)
+ as_warn (_("loading the same register in parallel operation"));
+ break;
+
+ case OO_4op3:
+ p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->reg.opcode << 22);
+ break;
+
+ case OO_5op1:
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 19);
+ p_insn.opcode |= (p_insn.operand_type[0][2]->reg.opcode << 22);
+ break;
+
+ case OO_5op2:
+ p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->reg.opcode << 19);
+ p_insn.opcode |= (p_insn.operand_type[0][2]->reg.opcode << 22);
+ break;
+
+ case OO_PField:
+ p_insn.opcode |= p_insn.p_field;
+ if (p_insn.operand_type[0][2]->reg.opcode == 0x01)
+ p_insn.opcode |= 0x00800000;
+ if (p_insn.operand_type[1][2]->reg.opcode == 0x03)
+ p_insn.opcode |= 0x00400000;
+
+ switch (p_insn.p_field)
+ {
+ case 0x00000000:
+ p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 19);
+ break;
+ case 0x01000000:
+ p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 19);
+ break;
+ case 0x02000000:
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->reg.opcode << 19);
+ break;
+ case 0x03000000:
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum);
+ p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 3);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum << 8);
+ p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 11);
+ p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
+ p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 19);
+ break;
+ }
+ break;
+ }
+
{
- p_insn.opcode = p_insn.tm->base_opcode;
- switch (p_insn.tm->oporder)
- {
- case OO_4op1:
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 22);
- break;
- case OO_4op2:
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][1]->reg.opcode << 19);
- p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 22);
- if (p_insn.operand_type[1][1]->reg.opcode == p_insn.operand_type[0][1]->reg.opcode)
- as_warn ("loading the same register in parallel operation");
- break;
- case OO_4op3:
- p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][0]->reg.opcode << 22);
- break;
- case OO_5op1:
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 19);
- p_insn.opcode |= (p_insn.operand_type[0][2]->reg.opcode << 22);
- break;
- case OO_5op2:
- p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][0]->reg.opcode << 19);
- p_insn.opcode |= (p_insn.operand_type[0][2]->reg.opcode << 22);
- break;
- case OO_PField:
- p_insn.opcode |= p_insn.p_field;
- if (p_insn.operand_type[0][2]->reg.opcode == 0x01)
- p_insn.opcode |= 0x00800000;
- if (p_insn.operand_type[1][2]->reg.opcode == 0x03)
- p_insn.opcode |= 0x00400000;
- switch (p_insn.p_field)
- {
- case 0x00000000:
- p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[0][1]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][1]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 19);
- break;
- case 0x01000000:
- p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][1]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 19);
- break;
- case 0x02000000:
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[1][0]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][0]->reg.opcode << 19);
- break;
- case 0x03000000:
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.ARnum);
- p_insn.opcode |= (p_insn.operand_type[1][1]->indirect.mod << 3);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.ARnum << 8);
- p_insn.opcode |= (p_insn.operand_type[0][0]->indirect.mod << 11);
- p_insn.opcode |= (p_insn.operand_type[1][0]->reg.opcode << 16);
- p_insn.opcode |= (p_insn.operand_type[0][1]->reg.opcode << 19);
- break;
- }
- break;
- }
- } /* 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]);
}
+
debug ("Final opcode: %08X\n", p_insn.opcode);
debug ("\n");
+
return 1;
}
-operand *
-tic30_operand (token)
- char *token;
+/* 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. */
+
+int
+tic30_unrecognized_line (int c)
{
- int count;
- char ind_buffer[strlen (token)];
- operand *current_op;
-
- debug ("In tic30_operand with %s\n", token);
- current_op = (operand *) malloc (sizeof (operand));
- memset (current_op, '\0', sizeof (operand));
- if (*token == DIRECT_REFERENCE)
- {
- char *token_posn = token + 1;
- int direct_label = 0;
- debug ("Found direct reference\n");
- while (*token_posn)
- {
- if (!is_digit_char (*token_posn))
- direct_label = 1;
- token_posn++;
- }
- if (direct_label)
- {
- char *save_input_line_pointer;
- segT retval;
- debug ("Direct reference is a label\n");
- current_op->direct.label = token + 1;
- save_input_line_pointer = input_line_pointer;
- input_line_pointer = token + 1;
- debug ("Current input_line_pointer: %s\n", input_line_pointer);
- retval = expression (¤t_op->direct.direct_expr);
- debug ("Expression type: %d\n", current_op->direct.direct_expr.X_op);
- debug ("Expression addnum: %d\n", current_op->direct.direct_expr.X_add_number);
- debug ("Segment: %d\n", retval);
- input_line_pointer = save_input_line_pointer;
- if (current_op->direct.direct_expr.X_op == O_constant)
- {
- current_op->direct.address = current_op->direct.direct_expr.X_add_number;
- current_op->direct.resolved = 1;
- }
- }
- else
- {
- debug ("Direct reference is a number\n");
- current_op->direct.address = atoi (token + 1);
- current_op->direct.resolved = 1;
- }
- current_op->op_type = Direct;
- }
- else if (*token == INDIRECT_REFERENCE)
- { /* Indirect reference operand */
- int found_ar = 0;
- int found_disp = 0;
- int ar_number = -1;
- int disp_number = 0;
- int buffer_posn = 1;
- ind_addr_type *ind_addr_op;
- debug ("Found indirect reference\n");
- ind_buffer[0] = *token;
- for (count = 1; count < strlen (token); count++)
- { /* Strip operand */
- ind_buffer[buffer_posn] = tolower (*(token + count));
- if ((*(token + count - 1) == 'a' || *(token + count - 1) == 'A') &&
- (*(token + count) == 'r' || *(token + count) == 'R'))
- {
- /* AR reference is found, so get its number and remove it from the buffer
- so it can pass through hash_find() */
- if (found_ar)
- {
- as_bad ("More than one AR register found in indirect reference");
- return NULL;
- }
- if (*(token + count + 1) < '0' || *(token + count + 1) > '7')
- {
- as_bad ("Illegal AR register in indirect reference");
- return NULL;
- }
- ar_number = *(token + count + 1) - '0';
- found_ar = 1;
- count++;
- }
- if (*(token + count) == '(')
- {
- /* Parenthesis found, so check if a displacement value is inside. If so, get
- the value and remove it from the buffer. */
- if (is_digit_char (*(token + count + 1)))
- {
- char disp[10];
- int disp_posn = 0;
-
- if (found_disp)
- {
- as_bad ("More than one displacement found in indirect reference");
- return NULL;
- }
- count++;
- while (*(token + count) != ')')
- {
- if (!is_digit_char (*(token + count)))
- {
- as_bad ("Invalid displacement in indirect reference");
- return NULL;
- }
- disp[disp_posn++] = *(token + (count++));
- }
- disp[disp_posn] = '\0';
- disp_number = atoi (disp);
- count--;
- found_disp = 1;
- }
- }
- buffer_posn++;
- }
- ind_buffer[buffer_posn] = '\0';
- if (!found_ar)
- {
- as_bad ("AR register not found in indirect reference");
- return NULL;
- }
- ind_addr_op = (ind_addr_type *) hash_find (ind_hash, ind_buffer);
- if (ind_addr_op)
- {
- debug ("Found indirect reference: %s\n", ind_addr_op->syntax);
- if (ind_addr_op->displacement == IMPLIED_DISP)
- {
- found_disp = 1;
- disp_number = 1;
- }
- else if ((ind_addr_op->displacement == DISP_REQUIRED) && !found_disp)
- {
- /* Maybe an implied displacement of 1 again */
- as_bad ("required displacement wasn't given in indirect reference");
- return 0;
- }
- }
- else
- {
- as_bad ("illegal indirect reference");
- return NULL;
- }
- if (found_disp && (disp_number < 0 || disp_number > 255))
- {
- as_bad ("displacement must be an unsigned 8-bit number");
- return NULL;
- }
- current_op->indirect.mod = ind_addr_op->modfield;
- current_op->indirect.disp = disp_number;
- current_op->indirect.ARnum = ar_number;
- current_op->op_type = Indirect;
- }
- else
- {
- reg *regop = (reg *) hash_find (reg_hash, token);
- if (regop)
- {
- debug ("Found register operand: %s\n", regop->name);
- if (regop->regtype == REG_ARn)
- current_op->op_type = ARn;
- else if (regop->regtype == REG_Rn)
- current_op->op_type = Rn;
- else if (regop->regtype == REG_DP)
- current_op->op_type = DPReg;
- else
- current_op->op_type = OtherReg;
- current_op->reg.opcode = regop->opcode;
- }
- else
- {
- if (!is_digit_char (*token) || *(token + 1) == 'x' || strchr (token, 'h'))
- {
- char *save_input_line_pointer;
- segT retval;
- debug ("Probably a label: %s\n", token);
- current_op->immediate.label = (char *) malloc (strlen (token) + 1);
- strcpy (current_op->immediate.label, token);
- current_op->immediate.label[strlen (token)] = '\0';
- save_input_line_pointer = input_line_pointer;
- input_line_pointer = token;
- debug ("Current input_line_pointer: %s\n", input_line_pointer);
- retval = expression (¤t_op->immediate.imm_expr);
- debug ("Expression type: %d\n", current_op->immediate.imm_expr.X_op);
- debug ("Expression addnum: %d\n", current_op->immediate.imm_expr.X_add_number);
- debug ("Segment: %d\n", retval);
- input_line_pointer = save_input_line_pointer;
- if (current_op->immediate.imm_expr.X_op == O_constant)
- {
- current_op->immediate.s_number = current_op->immediate.imm_expr.X_add_number;
- current_op->immediate.u_number = (unsigned int) current_op->immediate.imm_expr.X_add_number;
- current_op->immediate.resolved = 1;
- }
- }
- else
- {
- unsigned count;
- debug ("Found a number or displacement\n");
- for (count = 0; count < strlen (token); count++)
- if (*(token + count) == '.')
- current_op->immediate.decimal_found = 1;
- current_op->immediate.label = (char *) malloc (strlen (token) + 1);
- strcpy (current_op->immediate.label, token);
- current_op->immediate.label[strlen (token)] = '\0';
- current_op->immediate.f_number = (float) atof (token);
- current_op->immediate.s_number = (int) atoi (token);
- current_op->immediate.u_number = (unsigned int) atoi (token);
- 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)
- current_op->op_type |= IVector;
- }
- }
- return current_op;
-}
-
-/* next_line points to the next line after the current instruction (current_line).
- Search for the parallel bars, and if found, merge two lines into internal syntax
- for a parallel instruction:
- q_[INSN1]_[INSN2] [OPERANDS1] | [OPERANDS2]
- By this stage, all comments are scrubbed, and only the bare lines are given.
- */
-
-#define NONE 0
-#define START_OPCODE 1
-#define END_OPCODE 2
-#define START_OPERANDS 3
-#define END_OPERANDS 4
-
-char *
-tic30_find_parallel_insn (current_line, next_line)
- char *current_line;
- char *next_line;
-{
- int found_parallel = 0;
- char first_opcode[256];
- char second_opcode[256];
- char first_operands[256];
- char second_operands[256];
- char *parallel_insn;
-
- debug ("In tic30_find_parallel_insn()\n");
- while (!is_end_of_line[(int) *next_line])
- {
- if (*next_line == PARALLEL_SEPARATOR && *(next_line + 1) == PARALLEL_SEPARATOR)
- {
- found_parallel = 1;
- next_line++;
- break;
- }
- next_line++;
- }
- if (!found_parallel)
- return NULL;
- debug ("Found a parallel instruction\n");
- {
- int i;
- char *opcode, *operands, *line;
-
- for (i = 0; i < 2; i++)
- {
- if (i == 0)
- {
- opcode = &first_opcode[0];
- operands = &first_operands[0];
- line = current_line;
- }
- else
- {
- opcode = &second_opcode[0];
- operands = &second_operands[0];
- line = next_line;
- }
- {
- int search_status = NONE;
- int char_ptr = 0;
- char c;
-
- while (!is_end_of_line[(int) (c = *line)] && *line)
- {
- if (is_opcode_char (c) && search_status == NONE)
- {
- opcode[char_ptr++] = tolower (c);
- search_status = START_OPCODE;
- }
- else if (is_opcode_char (c) && search_status == START_OPCODE)
- {
- opcode[char_ptr++] = tolower (c);
- }
- else if (!is_opcode_char (c) && search_status == START_OPCODE)
- {
- opcode[char_ptr] = '\0';
- char_ptr = 0;
- search_status = END_OPCODE;
- }
- else if (is_operand_char (c) && search_status == START_OPERANDS)
- {
- operands[char_ptr++] = c;
- }
- if (is_operand_char (c) && search_status == END_OPCODE)
- {
- operands[char_ptr++] = c;
- search_status = START_OPERANDS;
- }
- line++;
- }
- if (search_status != START_OPERANDS)
- return NULL;
- operands[char_ptr] = '\0';
- }
- }
- }
- parallel_insn = (char *) malloc (strlen (first_opcode) + strlen (first_operands) +
- strlen (second_opcode) + strlen (second_operands) + 8);
- sprintf (parallel_insn, "q_%s_%s %s | %s", first_opcode, second_opcode, first_operands, second_operands);
- debug ("parallel insn = %s\n", parallel_insn);
- return parallel_insn;
-}
-
-#undef NONE
-#undef START_OPCODE
-#undef END_OPCODE
-#undef START_OPERANDS
-#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. */
-
-int
-tic30_unrecognized_line (c)
- int c;
-{
- debug ("In tc_unrecognized_line\n");
- return (c == PARALLEL_SEPARATOR);
-}
+ debug ("In tc_unrecognized_line\n");
+ return (c == PARALLEL_SEPARATOR);
+}
int
-md_estimate_size_before_relax (fragP, segment)
- fragS *fragP;
- segT segment;
+md_estimate_size_before_relax (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;
+md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
+ segT sec ATTRIBUTE_UNUSED,
+ register fragS *fragP ATTRIBUTE_UNUSED)
{
debug ("In md_convert_frag()\n");
}
void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- debug ("In md_create_short_jump()\n");
-}
-
-void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- debug ("In md_create_long_jump()\n");
-}
-
-int
-md_apply_fix (fixP, valP)
- fixS *fixP;
- valueT *valP;
+md_apply_fix (fixS *fixP,
+ valueT *valP,
+ segT seg ATTRIBUTE_UNUSED)
{
valueT value = *valP;
debug ("Values in fixP\n");
debug ("fx_size = %d\n", fixP->fx_size);
debug ("fx_pcrel = %d\n", fixP->fx_pcrel);
- debug ("fx_where = %d\n", fixP->fx_where);
+ debug ("fx_where = %ld\n", fixP->fx_where);
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;
+md_parse_option (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;
+md_show_usage (FILE *stream ATTRIBUTE_UNUSED)
{
debug ("In md_show_usage()\n");
}
symbolS *
-md_undefined_symbol (name)
- char *name;
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
{
debug ("In md_undefined_symbol()\n");
return (symbolS *) 0;
}
valueT
-md_section_align (segment, size)
- segT segment;
- valueT size;
+md_section_align (segT segment, valueT size)
{
- debug ("In md_section_align() segment = %d and size = %d\n", segment, size);
+ debug ("In md_section_align() segment = %p and size = %lu\n",
+ segment, (unsigned long) size);
size = (size + 3) / 4;
size *= 4;
- debug ("New size value = %d\n", size);
+ debug ("New size value = %lu\n", (unsigned long) size);
return size;
}
long
-md_pcrel_from (fixP)
- fixS *fixP;
+md_pcrel_from (fixS *fixP)
{
int offset;
debug ("In md_pcrel_from()\n");
- debug ("fx_where = %d\n", fixP->fx_where);
+ debug ("fx_where = %ld\n", fixP->fx_where);
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. */
+ /* 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. */
if (fixP->fx_frag->fr_literal[fixP->fx_where - fixP->fx_size + 1] & 0x20)
offset = 3;
else
displacement = Label - (PC + offset)
This function returns PC + offset where:
fx_where - fx_size = PC
- INSN_SIZE * offset = offset number of instructions
- */
+ INSN_SIZE * offset = offset number of instructions. */
return fixP->fx_where - fixP->fx_size + (INSN_SIZE * offset);
}
char *
-md_atof (what_statement_type, literalP, sizeP)
- int what_statement_type;
- char *literalP;
- int *sizeP;
+md_atof (int what_statement_type,
+ char *literalP,
+ int *sizeP)
{
int prec;
char *token;
char keepval;
unsigned long value;
- /* char *atof_ieee (); */
float float_value;
+
debug ("In md_atof()\n");
debug ("precision = %c\n", what_statement_type);
debug ("literal = %s\n", literalP);
debug ("line = ");
token = input_line_pointer;
- while (!is_end_of_line[(unsigned) *input_line_pointer] && (*input_line_pointer) && (*input_line_pointer != ','))
+ while (!is_end_of_line[(unsigned char) *input_line_pointer]
+ && (*input_line_pointer != ','))
{
debug ("%c", *input_line_pointer);
input_line_pointer++;
}
+
keepval = *input_line_pointer;
*input_line_pointer = '\0';
debug ("\n");
float_value = (float) atof (token);
*input_line_pointer = keepval;
debug ("float_value = %f\n", float_value);
+
switch (what_statement_type)
{
case 'f':
default:
*sizeP = 0;
- return "Bad call to MD_ATOF()";
+ return _("Unrecognized or unsupported floating point constant");
}
+
if (float_value == 0.0)
- {
- value = (prec == 2) ? 0x00008000L : 0x80000000L;
- }
+ value = (prec == 2) ? 0x00008000L : 0x80000000L;
else
{
unsigned long exp, sign, mant, tmsfloat;
- tmsfloat = *((long *) &float_value);
+ union
+ {
+ float f;
+ long l;
+ }
+ converter;
+
+ converter.f = float_value;
+ tmsfloat = converter.l;
sign = tmsfloat & 0x80000000;
mant = tmsfloat & 0x007FFFFF;
exp = tmsfloat & 0x7F800000;
}
if (prec == 2)
{
- long exp, mant;
+ long expon, mantis;
if (tmsfloat == 0x80000000)
- {
- value = 0x8000;
- }
+ value = 0x8000;
else
{
value = 0;
- exp = (tmsfloat & 0xFF000000);
- exp >>= 24;
- mant = tmsfloat & 0x007FFFFF;
+ expon = (tmsfloat & 0xFF000000);
+ expon >>= 24;
+ mantis = tmsfloat & 0x007FFFFF;
if (tmsfloat & 0x00800000)
{
- mant |= 0xFF000000;
- mant += 0x00000800;
- mant >>= 12;
- mant |= 0x00000800;
- mant &= 0x0FFF;
- if (exp > 7)
+ mantis |= 0xFF000000;
+ mantis += 0x00000800;
+ mantis >>= 12;
+ mantis |= 0x00000800;
+ mantis &= 0x0FFF;
+ if (expon > 7)
value = 0x7800;
}
else
{
- mant |= 0x00800000;
- mant += 0x00000800;
- exp += (mant >> 24);
- mant >>= 12;
- mant &= 0x07FF;
- if (exp > 7)
+ mantis |= 0x00800000;
+ mantis += 0x00000800;
+ expon += (mantis >> 24);
+ mantis >>= 12;
+ mantis &= 0x07FF;
+ if (expon > 7)
value = 0x77FF;
}
- if (exp < -8)
+ if (expon < -8)
value = 0x8000;
if (value == 0)
{
- mant = (exp << 12) | mant;
- value = mant & 0xFFFF;
+ mantis = (expon << 12) | mantis;
+ value = mantis & 0xFFFF;
}
}
}
}
md_number_to_chars (literalP, value, prec);
*sizeP = prec;
- return 0;
+ return NULL;
}
void
-md_number_to_chars (buf, val, n)
- char *buf;
- valueT val;
- int n;
+md_number_to_chars (char *buf, valueT val, int n)
{
debug ("In md_number_to_chars()\n");
number_to_chars_bigendian (buf, val, n);
- /* number_to_chars_littleendian(buf,val,n); */
}
#define F(SZ,PCREL) (((SZ) << 1) + (PCREL))
#define MAP(SZ,PCREL,TYPE) case F(SZ,PCREL): code = (TYPE); break
arelent *
-tc_gen_reloc (section, fixP)
- asection *section;
- fixS *fixP;
+tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixP)
{
arelent *rel;
bfd_reloc_code_real_type code = 0;
debug ("fixP.size = %d\n", fixP->fx_size);
debug ("fixP.pcrel = %d\n", fixP->fx_pcrel);
debug ("addsy.name = %s\n", S_GET_NAME (fixP->fx_addsy));
+
switch (F (fixP->fx_size, fixP->fx_pcrel))
{
MAP (1, 0, BFD_RELOC_TIC30_LDP);
MAP (2, 1, BFD_RELOC_16_PCREL);
MAP (4, 0, BFD_RELOC_32);
default:
- as_bad ("Can not do %d byte %srelocation", fixP->fx_size,
- fixP->fx_pcrel ? "pc-relative " : "");
+ as_bad (_("Can not do %d byte %srelocation"), fixP->fx_size,
+ fixP->fx_pcrel ? _("pc-relative ") : "");
}
#undef MAP
#undef F
- rel = (arelent *) xmalloc (sizeof (arelent));
- assert (rel != 0);
- rel->sym_ptr_ptr = &fixP->fx_addsy->bsym;
+ rel = xmalloc (sizeof (* rel));
+ gas_assert (rel != 0);
+ rel->sym_ptr_ptr = 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)
{
const char *name;
+
name = S_GET_NAME (fixP->fx_addsy);
if (name == NULL)
name = "<unknown>";
- as_fatal ("Cannot generate relocation type for symbol %s, code %s", name, bfd_get_reloc_code_name (code));
+ as_fatal ("Cannot generate relocation type for symbol %s, code %s",
+ name, bfd_get_reloc_code_name (code));
}
return rel;
}
void
-tc_aout_pre_write_hook ()
+md_operand (expressionS *expressionP ATTRIBUTE_UNUSED)
{
- debug ("In tc_aout_pre_write_hook()\n");
+ debug ("In md_operand()\n");
}
void
-md_operand (expressionP)
- expressionS *expressionP;
+md_assemble (char *line)
{
- debug ("In md_operand()\n");
-}
-
-char output_invalid_buf[8];
+ insn_template *op;
+ char *current_posn;
+ char *token_start;
+ char save_char;
+ unsigned int count;
-char *
-output_invalid (c)
- char c;
-{
- if (isprint (c))
- sprintf (output_invalid_buf, "'%c'", c);
+ debug ("In md_assemble() with argument %s\n", line);
+ memset (&insn, '\0', sizeof (insn));
+ if (found_parallel_insn)
+ {
+ debug ("Line is second part of parallel instruction\n\n");
+ found_parallel_insn = 0;
+ return;
+ }
+ if ((current_posn =
+ tic30_find_parallel_insn (line, input_line_pointer + 1)) == NULL)
+ current_posn = line;
else
- sprintf (output_invalid_buf, "(0x%x)", (unsigned) c);
- return output_invalid_buf;
+ found_parallel_insn = 1;
+
+ while (is_space_char (*current_posn))
+ current_posn++;
+
+ token_start = current_posn;
+
+ if (!is_opcode_char (*current_posn))
+ {
+ as_bad (_("Invalid character %s in opcode"),
+ output_invalid (*current_posn));
+ return;
+ }
+ /* Check if instruction is a parallel instruction
+ by seeing if the first character is a q. */
+ if (*token_start == 'q')
+ {
+ if (tic30_parallel_insn (token_start))
+ {
+ if (found_parallel_insn)
+ free (token_start);
+ return;
+ }
+ }
+ while (is_opcode_char (*current_posn))
+ current_posn++;
+ {
+ /* Find instruction. */
+ save_char = *current_posn;
+ *current_posn = '\0';
+ op = (insn_template *) hash_find (op_hash, token_start);
+ if (op)
+ {
+ debug ("Found instruction %s\n", op->name);
+ insn.tm = op;
+ }
+ else
+ {
+ debug ("Didn't find insn\n");
+ as_bad (_("Unknown TMS320C30 instruction: %s"), token_start);
+ return;
+ }
+ *current_posn = save_char;
+ }
+
+ if (*current_posn != END_OF_INSN)
+ {
+ /* Find operands. */
+ int paren_not_balanced;
+ int expecting_operand = 0;
+ int this_operand;
+ do
+ {
+ /* Skip optional white space before operand. */
+ while (!is_operand_char (*current_posn)
+ && *current_posn != END_OF_INSN)
+ {
+ if (!is_space_char (*current_posn))
+ {
+ as_bad (_("Invalid character %s before %s operand"),
+ output_invalid (*current_posn),
+ ordinal_names[insn.operands]);
+ return;
+ }
+ current_posn++;
+ }
+ token_start = current_posn;
+ paren_not_balanced = 0;
+ while (paren_not_balanced || *current_posn != ',')
+ {
+ if (*current_posn == END_OF_INSN)
+ {
+ if (paren_not_balanced)
+ {
+ as_bad (_("Unbalanced parenthesis in %s operand."),
+ ordinal_names[insn.operands]);
+ return;
+ }
+ else
+ break;
+ }
+ else if (!is_operand_char (*current_posn)
+ && !is_space_char (*current_posn))
+ {
+ as_bad (_("Invalid character %s in %s operand"),
+ output_invalid (*current_posn),
+ ordinal_names[insn.operands]);
+ return;
+ }
+ if (*current_posn == '(')
+ ++paren_not_balanced;
+ if (*current_posn == ')')
+ --paren_not_balanced;
+ current_posn++;
+ }
+ if (current_posn != token_start)
+ {
+ /* Yes, we've read in another operand. */
+ this_operand = insn.operands++;
+ if (insn.operands > MAX_OPERANDS)
+ {
+ as_bad (_("Spurious operands; (%d operands/instruction max)"),
+ MAX_OPERANDS);
+ return;
+ }
+
+ /* Now parse operand adding info to 'insn' as we go along. */
+ save_char = *current_posn;
+ *current_posn = '\0';
+ insn.operand_type[this_operand] = tic30_operand (token_start);
+ *current_posn = save_char;
+ if (insn.operand_type[this_operand] == NULL)
+ return;
+ }
+ else
+ {
+ if (expecting_operand)
+ {
+ as_bad (_("Expecting operand after ','; got nothing"));
+ return;
+ }
+ if (*current_posn == ',')
+ {
+ as_bad (_("Expecting operand before ','; got nothing"));
+ return;
+ }
+ }
+
+ /* Now *current_posn must be either ',' or END_OF_INSN. */
+ if (*current_posn == ',')
+ {
+ if (*++current_posn == END_OF_INSN)
+ {
+ /* Just skip it, if it's \n complain. */
+ as_bad (_("Expecting operand after ','; got nothing"));
+ return;
+ }
+ expecting_operand = 1;
+ }
+ }
+ while (*current_posn != END_OF_INSN);
+ }
+
+ debug ("Number of operands found: %d\n", insn.operands);
+
+ /* Check that number of operands is correct. */
+ if (insn.operands != 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. */
+ for (i = 0; i < insn.tm->operands; i++)
+ if (insn.tm->operand_types[i] & NotReq)
+ numops--;
+ if (insn.operands != numops)
+ {
+ as_bad (_("Incorrect number of operands given"));
+ return;
+ }
+ }
+ insn.addressing_mode = AM_NotReq;
+ for (count = 0; count < insn.operands; count++)
+ {
+ if (insn.operand_type[count]->op_type & insn.tm->operand_types[count])
+ {
+ debug ("Operand %d matches\n", count + 1);
+ /* If instruction has two operands and has an AddressMode
+ modifier then set addressing mode type for instruction. */
+ if (insn.tm->opcode_modifier == AddressMode)
+ {
+ int addr_insn = 0;
+ /* 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))
+ insn.addressing_mode = AM_Register;
+ else if (insn.operand_type[addr_insn]->op_type & Direct)
+ insn.addressing_mode = AM_Direct;
+ else if (insn.operand_type[addr_insn]->op_type & Indirect)
+ insn.addressing_mode = AM_Indirect;
+ else
+ insn.addressing_mode = AM_Immediate;
+ }
+ }
+ else
+ {
+ as_bad (_("The %s operand doesn't match"), ordinal_names[count]);
+ return;
+ }
+ }
+
+ /* 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. */
+ char *p;
+ switch (insn.operand_type[0]->op_type)
+ {
+ case Rn:
+ case ARn:
+ case DPReg:
+ case OtherReg:
+ if (insn.operand_type[1]->op_type & (AllReg))
+ insn.addressing_mode = AM_Register;
+ else if (insn.operand_type[1]->op_type & Indirect)
+ insn.addressing_mode = AM_Direct;
+ else
+ {
+ /* Shouldn't make it to this stage. */
+ as_bad (_("Incompatible first and second operands in instruction"));
+ return;
+ }
+ break;
+ case Indirect:
+ if (insn.operand_type[1]->op_type & (AllReg))
+ insn.addressing_mode = AM_Indirect;
+ else if (insn.operand_type[1]->op_type & Indirect)
+ insn.addressing_mode = AM_Immediate;
+ else
+ {
+ /* Shouldn't make it to this stage. */
+ as_bad (_("Incompatible first and second operands in instruction"));
+ return;
+ }
+ break;
+ }
+ /* 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. */
+ insn.opcode = insn.tm->base_opcode;
+ if (insn.operand_type[0]->op_type & Indirect)
+ {
+ insn.opcode |= (insn.operand_type[0]->indirect.ARnum);
+ insn.opcode |= (insn.operand_type[0]->indirect.mod << 3);
+ }
+ else
+ insn.opcode |= (insn.operand_type[0]->reg.opcode);
+
+ if (insn.operand_type[1]->op_type & Indirect)
+ {
+ insn.opcode |= (insn.operand_type[1]->indirect.ARnum << 8);
+ insn.opcode |= (insn.operand_type[1]->indirect.mod << 11);
+ }
+ else
+ insn.opcode |= (insn.operand_type[1]->reg.opcode << 8);
+
+ if (insn.operands == 3)
+ insn.opcode |= (insn.operand_type[2]->reg.opcode << 16);
+
+ insn.opcode |= insn.addressing_mode;
+ p = frag_more (INSN_SIZE);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ /* Not a three operand instruction. */
+ char *p;
+ int am_insn = -1;
+ insn.opcode = insn.tm->base_opcode;
+ /* Create frag for instruction - all instructions are 4 bytes long. */
+ p = frag_more (INSN_SIZE);
+ if ((insn.operands > 0) && (insn.tm->opcode_modifier == AddressMode))
+ {
+ insn.opcode |= insn.addressing_mode;
+ if (insn.addressing_mode == AM_Indirect)
+ {
+ /* Determine which operand gives the addressing mode. */
+ if (insn.operand_type[0]->op_type & Indirect)
+ am_insn = 0;
+ if ((insn.operands > 1)
+ && (insn.operand_type[1]->op_type & Indirect))
+ am_insn = 1;
+ insn.opcode |= (insn.operand_type[am_insn]->indirect.disp);
+ insn.opcode |= (insn.operand_type[am_insn]->indirect.ARnum << 8);
+ insn.opcode |= (insn.operand_type[am_insn]->indirect.mod << 11);
+ if (insn.operands > 1)
+ insn.opcode |= (insn.operand_type[!am_insn]->reg.opcode << 16);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else if (insn.addressing_mode == AM_Register)
+ {
+ insn.opcode |= (insn.operand_type[0]->reg.opcode);
+ if (insn.operands > 1)
+ insn.opcode |= (insn.operand_type[1]->reg.opcode << 16);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else if (insn.addressing_mode == AM_Direct)
+ {
+ if (insn.operand_type[0]->op_type & Direct)
+ am_insn = 0;
+ if ((insn.operands > 1)
+ && (insn.operand_type[1]->op_type & Direct))
+ am_insn = 1;
+ if (insn.operands > 1)
+ insn.opcode |=
+ (insn.operand_type[! am_insn]->reg.opcode << 16);
+ if (insn.operand_type[am_insn]->direct.resolved == 1)
+ {
+ /* Resolved values can be placed straight
+ into instruction word, and output. */
+ insn.opcode |=
+ (insn.operand_type[am_insn]->direct.address & 0x0000FFFF);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ /* Unresolved direct addressing mode instruction. */
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ fix_new_exp (frag_now, p + 2 - (frag_now->fr_literal), 2,
+ & insn.operand_type[am_insn]->direct.direct_expr,
+ 0, 0);
+ }
+ }
+ else if (insn.addressing_mode == AM_Immediate)
+ {
+ if (insn.operand_type[0]->immediate.resolved == 1)
+ {
+ char *keeploc;
+ int size;
+
+ if (insn.operands > 1)
+ insn.opcode |= (insn.operand_type[1]->reg.opcode << 16);
+
+ switch (insn.tm->imm_arg_type)
+ {
+ case Imm_Float:
+ debug ("Floating point first operand\n");
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+
+ keeploc = input_line_pointer;
+ input_line_pointer =
+ insn.operand_type[0]->immediate.label;
+
+ if (md_atof ('f', p + 2, & size) != 0)
+ {
+ as_bad (_("invalid short form floating point immediate operand"));
+ return;
+ }
+
+ input_line_pointer = keeploc;
+ break;
+
+ case Imm_UInt:
+ debug ("Unsigned int first operand\n");
+ if (insn.operand_type[0]->immediate.decimal_found)
+ as_warn (_("rounding down first operand float to unsigned int"));
+ if (insn.operand_type[0]->immediate.u_number > 0xFFFF)
+ as_warn (_("only lower 16-bits of first operand are used"));
+ insn.opcode |=
+ (insn.operand_type[0]->immediate.u_number & 0x0000FFFFL);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ break;
+
+ case Imm_SInt:
+ debug ("Int first operand\n");
+
+ if (insn.operand_type[0]->immediate.decimal_found)
+ as_warn (_("rounding down first operand float to signed int"));
+
+ if (insn.operand_type[0]->immediate.s_number < -32768 ||
+ insn.operand_type[0]->immediate.s_number > 32767)
+ {
+ as_bad (_("first operand is too large for 16-bit signed int"));
+ return;
+ }
+ insn.opcode |=
+ (insn.operand_type[0]->immediate.s_number & 0x0000FFFFL);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ break;
+ }
+ }
+ else
+ {
+ /* Unresolved immediate label. */
+ if (insn.operands > 1)
+ insn.opcode |= (insn.operand_type[1]->reg.opcode << 16);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ fix_new_exp (frag_now, p + 2 - (frag_now->fr_literal), 2,
+ & insn.operand_type[0]->immediate.imm_expr,
+ 0, 0);
+ }
+ }
+ }
+ else if (insn.tm->opcode_modifier == PCRel)
+ {
+ /* Conditional Branch and Call instructions. */
+ if ((insn.tm->operand_types[0] & (AllReg | Disp))
+ == (AllReg | Disp))
+ {
+ if (insn.operand_type[0]->op_type & (AllReg))
+ {
+ insn.opcode |= (insn.operand_type[0]->reg.opcode);
+ insn.opcode |= PC_Register;
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ insn.opcode |= PC_Relative;
+ if (insn.operand_type[0]->immediate.resolved == 1)
+ {
+ insn.opcode |=
+ (insn.operand_type[0]->immediate.s_number & 0x0000FFFF);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ fix_new_exp (frag_now, p + 2 - (frag_now->fr_literal),
+ 2, & insn.operand_type[0]->immediate.imm_expr,
+ 1, 0);
+ }
+ }
+ }
+ else if ((insn.tm->operand_types[0] & ARn) == ARn)
+ {
+ /* Decrement and Branch instructions. */
+ insn.opcode |= ((insn.operand_type[0]->reg.opcode - 0x08) << 22);
+ if (insn.operand_type[1]->op_type & (AllReg))
+ {
+ insn.opcode |= (insn.operand_type[1]->reg.opcode);
+ insn.opcode |= PC_Register;
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else if (insn.operand_type[1]->immediate.resolved == 1)
+ {
+ if (insn.operand_type[0]->immediate.decimal_found)
+ {
+ as_bad (_("first operand is floating point"));
+ return;
+ }
+ if (insn.operand_type[0]->immediate.s_number < -32768 ||
+ insn.operand_type[0]->immediate.s_number > 32767)
+ {
+ as_bad (_("first operand is too large for 16-bit signed int"));
+ return;
+ }
+ insn.opcode |= (insn.operand_type[1]->immediate.s_number);
+ insn.opcode |= PC_Relative;
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ insn.opcode |= PC_Relative;
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ fix_new_exp (frag_now, p + 2 - frag_now->fr_literal, 2,
+ & insn.operand_type[1]->immediate.imm_expr,
+ 1, 0);
+ }
+ }
+ }
+ else if (insn.tm->operand_types[0] == IVector)
+ {
+ /* Trap instructions. */
+ if (insn.operand_type[0]->op_type & IVector)
+ insn.opcode |= (insn.operand_type[0]->immediate.u_number);
+ else
+ {
+ /* Shouldn't get here. */
+ as_bad (_("interrupt vector for trap instruction out of range"));
+ return;
+ }
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else if (insn.tm->opcode_modifier == StackOp
+ || insn.tm->opcode_modifier == Rotate)
+ {
+ /* Push, Pop and Rotate instructions. */
+ insn.opcode |= (insn.operand_type[0]->reg.opcode << 16);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else if ((insn.tm->operand_types[0] & (Abs24 | Direct))
+ == (Abs24 | Direct))
+ {
+ /* LDP Instruction needs to be tested
+ for before the next section. */
+ if (insn.operand_type[0]->op_type & Direct)
+ {
+ if (insn.operand_type[0]->direct.resolved == 1)
+ {
+ /* Direct addressing uses lower 8 bits of direct address. */
+ insn.opcode |=
+ (insn.operand_type[0]->direct.address & 0x00FF0000) >> 16;
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ fixS *fix;
+
+ 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. */
+ fix->fx_no_overflow = 1;
+ }
+ }
+ else
+ {
+ if (insn.operand_type[0]->immediate.resolved == 1)
+ {
+ /* Immediate addressing uses upper 8 bits of address. */
+ if (insn.operand_type[0]->immediate.u_number > 0x00FFFFFF)
+ {
+ as_bad (_("LDP instruction needs a 24-bit operand"));
+ return;
+ }
+ insn.opcode |=
+ ((insn.operand_type[0]->immediate.u_number & 0x00FF0000) >> 16);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ fixS *fix;
+ 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]->immediate.imm_expr,
+ 0, 0);
+ fix->fx_no_overflow = 1;
+ }
+ }
+ }
+ else if (insn.tm->operand_types[0] & (Imm24))
+ {
+ /* Unconditional Branch and Call instructions. */
+ if (insn.operand_type[0]->immediate.resolved == 1)
+ {
+ if (insn.operand_type[0]->immediate.u_number > 0x00FFFFFF)
+ as_warn (_("first operand is too large for a 24-bit displacement"));
+ insn.opcode |=
+ (insn.operand_type[0]->immediate.u_number & 0x00FFFFFF);
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ else
+ {
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ fix_new_exp (frag_now, p + 1 - (frag_now->fr_literal), 3,
+ & insn.operand_type[0]->immediate.imm_expr, 0, 0);
+ }
+ }
+ else if (insn.tm->operand_types[0] & NotReq)
+ /* 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. */
+ md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
+ }
+ debug ("Addressing mode: %08X\n", insn.addressing_mode);
+ {
+ unsigned int i;
+
+ for (i = 0; i < insn.operands; i++)
+ {
+ if (insn.operand_type[i]->immediate.label)
+ free (insn.operand_type[i]->immediate.label);
+ free (insn.operand_type[i]);
+ }
+ }
+ debug ("Final opcode: %08X\n", insn.opcode);
+ debug ("\n");
}
projects / external / binutils.git / blobdiff