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-rw-r--r--gas/config/tc-tic30.c1876
1 files changed, 0 insertions, 1876 deletions
diff --git a/gas/config/tc-tic30.c b/gas/config/tc-tic30.c
deleted file mode 100644
index 2190a8547c6..00000000000
--- a/gas/config/tc-tic30.c
+++ /dev/null
@@ -1,1876 +0,0 @@
-/* tc-c30.c -- Assembly code for the Texas Instruments TMS320C30
- Copyright 1998, 1999, 2000 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)
- any later version.
-
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- 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. */
-
-/* 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. */
-
-#include "as.h"
-#include "opcode/tic30.h"
-
-/* Put here all non-digit non-letter charcters that may occur in an
- operand. */
-static char operand_special_chars[] = "%$-+(,)*._~/<>&^!:[@]";
-static char *ordinal_names[] = {
- "first", "second", "third", "fourth", "fifth"
-};
-
-const int md_reloc_size = 0;
-
-const char comment_chars[] = ";";
-const char line_comment_chars[] = "*";
-const char line_separator_chars[] = "";
-
-const char *md_shortopts = "";
-struct option md_longopts[] = {
- {NULL, no_argument, NULL, 0}
-};
-
-size_t md_longopts_size = sizeof (md_longopts);
-
-/* Chars that mean this number is a floating point constant. */
-/* 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. */
-const char EXP_CHARS[] = "eE";
-
-/* tables for lexical analysis */
-static char opcode_chars[256];
-static char register_chars[256];
-static char operand_chars[256];
-static char space_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])
-
-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, ...)
-{
- if (flag_debug)
- {
- va_list argptr;
- char str[100];
-
- va_start (argptr, string);
- vsprintf (str, string, argptr);
- if (str[0] == '\0')
- return (0);
- va_end (argptr);
- fputs (str, USE_STDOUT ? stdout : stderr);
- return strlen (str);
- }
- else
- return 0;
-}
-#else
-int
-debug (string, va_alist)
- const char *string;
- va_dcl
-{
- if (flag_debug)
- {
- va_list argptr;
- char str[100];
- int cnt;
-
- va_start (argptr, string);
- cnt = vsprintf (str, string, argptr);
- if (str[0] == NULL)
- return (0);
- va_end (argptr);
- fputs (str, USE_STDOUT ? stdout : stderr);
- return (cnt);
- }
- else
- return 0;
-}
-#endif
-
-/* hash table for opcode lookup */
-static struct hash_control *op_hash;
-/* hash table for parallel opcode lookup */
-static struct hash_control *parop_hash;
-/* hash table for register lookup */
-static struct hash_control *reg_hash;
-/* hash table for indirect addressing lookup */
-static struct hash_control *ind_hash;
-
-void
-md_begin ()
-{
- const char *hash_err;
- debug ("In md_begin()\n");
- op_hash = hash_new ();
- {
- const 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);
- if (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);
- if (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);
- if (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);
- if (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 */
- {
- register int c;
- register char *p;
-
- for (c = 0; c < 256; c++)
- {
- if (islower (c) || isdigit (c))
- {
- opcode_chars[c] = c;
- register_chars[c] = c;
- }
- else if (isupper (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))
- operand_chars[c] = c;
- if (isdigit (c) || c == '-')
- digit_chars[c] = 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;
- }
- for (p = operand_special_chars; *p != '\0'; p++)
- operand_chars[(unsigned char) *p] = *p;
- }
-}
-
-/* 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 */
-#define PC_Register 0x00000000
-#define PC_Relative 0x02000000
-
-typedef struct {
- unsigned op_type;
- struct {
- int resolved;
- unsigned address;
- char *label;
- expressionS direct_expr;
- } direct;
- struct {
- unsigned mod;
- int ARnum;
- unsigned char disp;
- } indirect;
- struct {
- unsigned opcode;
- } reg;
- struct {
- int resolved;
- int decimal_found;
- float f_number;
- int s_number;
- unsigned int u_number;
- char *label;
- expressionS imm_expr;
- } immediate;
-} operand;
-
-int tic30_parallel_insn PARAMS ((char *));
-operand *tic30_operand PARAMS ((char *));
-char *tic30_find_parallel_insn PARAMS ((char *, char *));
-
-template *opcode;
-
-struct tic30_insn {
- template *tm; /* Template of current instruction */
- unsigned opcode; /* Final opcode */
- int operands; /* Number of given operands */
- /* Type of operand given in instruction */
- operand *operand_type[MAX_OPERANDS];
- unsigned addressing_mode; /* Final addressing mode of instruction */
-};
-
-struct tic30_insn 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;
-
- 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
- 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';
- opcode = (template *) hash_find (op_hash, token_start);
- if (opcode)
- {
- debug ("Found instruction %s\n", opcode->name);
- insn.tm = opcode;
- }
- 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; /* after white space */
- 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; /* 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)
- {
- 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); /* 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)
- {
- 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)
- {
- 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);
- {
- 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");
-}
-
-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 */
- 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 */
-};
-
-struct tic30_par_insn p_insn;
-
-int
-tic30_parallel_insn (char *token)
-{
- static partemplate *p_opcode;
- char *current_posn = token;
- char *token_start;
- char save_char;
-
- 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 */
- save_char = *current_posn;
- *current_posn = '\0';
- p_opcode = (partemplate *) hash_find (parop_hash, token);
- if (p_opcode)
- {
- debug ("Found instruction %s\n", p_opcode->name);
- p_insn.tm = p_opcode;
- }
- else
- {
- char first_opcode[6] =
- {0};
- char second_opcode[6] =
- {0};
- 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:
- first_opcode[char_ptr++] = ch;
- break;
- case 1:
- second_opcode[char_ptr++] = ch;
- 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);
- p_insn.tm = p_opcode;
- p_insn.swap_operands = 1;
- }
- else
- return 0;
- }
- *current_posn = save_char;
- }
- { /* 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)
- {
- if (!is_space_char (*current_posn) && *current_posn != PARALLEL_SEPARATOR)
- {
- as_bad ("Invalid character %s before %s operand",
- output_invalid (*current_posn),
- ordinal_names[insn.operands]);
- return 1;
- }
- if (*current_posn == PARALLEL_SEPARATOR)
- found_separator = 1;
- current_posn++;
- }
- token_start = current_posn; /* after white space */
- 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 1;
- }
- else
- break; /* we are done */
- }
- else if (*current_posn == PARALLEL_SEPARATOR)
- {
- while (is_space_char (*(current_posn - 1)))
- current_posn--;
- 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 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 */
- p_insn.operands[found_separator]++;
- if (p_insn.operands[found_separator] > MAX_OPERANDS)
- {
- as_bad ("Spurious operands; (%d operands/instruction max)",
- MAX_OPERANDS);
- return 1;
- }
- /* 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] =
- tic30_operand (token_start);
- *current_posn = save_char;
- if (!p_insn.operand_type[found_separator][p_insn.operands[found_separator] - 1])
- return 1;
- }
- else
- {
- if (expecting_operand)
- {
- as_bad ("Expecting operand after ','; got nothing");
- return 1;
- }
- if (*current_posn == ',')
- {
- as_bad ("Expecting operand before ','; got nothing");
- return 1;
- }
- }
- /* 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 1;
- }
- expecting_operand = 1;
- }
- }
- while (*current_posn != END_OF_INSN); /* until we get end of insn */
- }
- if (p_insn.swap_operands)
- {
- int temp_num, i;
- operand *temp_op;
-
- temp_num = p_insn.operands[0];
- p_insn.operands[0] = p_insn.operands[1];
- p_insn.operands[1] = temp_num;
- for (i = 0; i < MAX_OPERANDS; i++)
- {
- temp_op = p_insn.operand_type[0][i];
- p_insn.operand_type[0][i] = p_insn.operand_type[1][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");
- return 1;
- }
- if (p_insn.operands[1] != p_insn.tm->operands_2)
- {
- 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 */
- int count;
- int num_rn = 0;
- int num_ind = 0;
- for (count = 0; count < 2; count++)
- {
- 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);
- 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. */
- 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)
- num_ind++;
- }
- }
- if ((p_insn.tm->operand_types[0][0] & (Indirect | Rn)) == (Indirect | Rn))
- {
- /* Check for the multiply instructions */
- if (num_rn != 2)
- {
- 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");
- return 1;
- }
- 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");
- return 1;
- }
- 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");
- return 1;
- }
- /* 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 */
- else if (p_insn.operand_type[1][0]->op_type & Indirect)
- p_insn.p_field = 0x01000000; /* Ind * Rn, Ind +/- Rn */
- else
- 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 */
- 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 */
- 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 */
- 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. */
- {
- 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;
- 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;
-{
- 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 (&current_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 (&current_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[(unsigned char) *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[(unsigned char) (c = *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);
-}
-
-int
-md_estimate_size_before_relax (fragP, segment)
- fragS *fragP;
- segT segment;
-{
- debug ("In md_estimate_size_before_relax()\n");
- return 0;
-}
-
-void
-md_convert_frag (abfd, sec, fragP)
- bfd *abfd;
- segT sec;
- register fragS *fragP;
-{
- debug ("In md_convert_frag()\n");
-}
-
-int
-md_apply_fix (fixP, valP)
- fixS *fixP;
- valueT *valP;
-{
- valueT value = *valP;
-
- debug ("In md_apply_fix() with value = %ld\n", (long) value);
- 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_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;
- }
- debug ("new value = %ld\n", (long) value);
- md_number_to_chars (buf, value, fixP->fx_size);
- }
- return 1;
-}
-
-int
-md_parse_option (c, arg)
- int c;
- char *arg;
-{
- 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;
-{
- debug ("In md_show_usage()\n");
-}
-
-symbolS *
-md_undefined_symbol (name)
- char *name;
-{
- debug ("In md_undefined_symbol()\n");
- return (symbolS *) 0;
-}
-
-valueT
-md_section_align (segment, size)
- segT segment;
- valueT size;
-{
- debug ("In md_section_align() segment = %d and size = %d\n", segment, size);
- size = (size + 3) / 4;
- size *= 4;
- debug ("New size value = %d\n", size);
- return size;
-}
-
-long
-md_pcrel_from (fixP)
- fixS *fixP;
-{
- int offset;
-
- debug ("In md_pcrel_from()\n");
- debug ("fx_where = %d\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. */
- if (fixP->fx_frag->fr_literal[fixP->fx_where - fixP->fx_size + 1] & 0x20)
- offset = 3;
- else
- offset = 1;
- debug ("offset = %d\n", offset);
- /* PC Relative instructions have a format:
- displacement = Label - (PC + offset)
- This function returns PC + offset where:
- fx_where - fx_size = PC
- 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;
-{
- 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 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':
- case 'F':
- case 's':
- case 'S':
- prec = 2;
- break;
-
- case 'd':
- case 'D':
- case 'r':
- case 'R':
- prec = 4;
- break;
-
- default:
- *sizeP = 0;
- return "Bad call to MD_ATOF()";
- }
- if (float_value == 0.0)
- {
- value = (prec == 2) ? 0x00008000L : 0x80000000L;
- }
- else
- {
- unsigned long exp, sign, mant, tmsfloat;
- tmsfloat = *((long *) &float_value);
- sign = tmsfloat & 0x80000000;
- mant = tmsfloat & 0x007FFFFF;
- exp = tmsfloat & 0x7F800000;
- exp <<= 1;
- if (exp == 0xFF000000)
- {
- if (mant == 0)
- value = 0x7F7FFFFF;
- else if (sign == 0)
- value = 0x7F7FFFFF;
- else
- value = 0x7F800000;
- }
- else
- {
- exp -= 0x7F000000;
- if (sign)
- {
- mant = mant & 0x007FFFFF;
- mant = -mant;
- mant = mant & 0x00FFFFFF;
- if (mant == 0)
- {
- mant |= 0x00800000;
- exp = (long) exp - 0x01000000;
- }
- }
- tmsfloat = exp | mant;
- value = tmsfloat;
- }
- if (prec == 2)
- {
- long exp, mant;
-
- if (tmsfloat == 0x80000000)
- {
- value = 0x8000;
- }
- else
- {
- value = 0;
- exp = (tmsfloat & 0xFF000000);
- exp >>= 24;
- mant = tmsfloat & 0x007FFFFF;
- if (tmsfloat & 0x00800000)
- {
- mant |= 0xFF000000;
- mant += 0x00000800;
- mant >>= 12;
- mant |= 0x00000800;
- mant &= 0x0FFF;
- if (exp > 7)
- value = 0x7800;
- }
- else
- {
- mant |= 0x00800000;
- mant += 0x00000800;
- exp += (mant >> 24);
- mant >>= 12;
- mant &= 0x07FF;
- if (exp > 7)
- value = 0x77FF;
- }
- if (exp < -8)
- value = 0x8000;
- if (value == 0)
- {
- mant = (exp << 12) | mant;
- value = mant & 0xFFFF;
- }
- }
- }
- }
- md_number_to_chars (literalP, value, prec);
- *sizeP = prec;
- return 0;
-}
-
-void
-md_number_to_chars (buf, val, n)
- 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;
-{
- arelent *rel;
- bfd_reloc_code_real_type code = 0;
-
- debug ("In tc_gen_reloc()\n");
- 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, 0, BFD_RELOC_16);
- MAP (3, 0, BFD_RELOC_24);
- 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 " : "");
- }
-#undef MAP
-#undef F
-
- rel = (arelent *) xmalloc (sizeof (arelent));
- assert (rel != 0);
- rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
- *rel->sym_ptr_ptr = symbol_get_bfdsym (fixP->fx_addsy);
- rel->address = fixP->fx_frag->fr_address + fixP->fx_where;
- if (fixP->fx_pcrel)
- rel->addend = fixP->fx_addnumber;
- else
- rel->addend = 0;
- rel->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));
- }
- return rel;
-}
-
-void
-tc_aout_pre_write_hook ()
-{
- debug ("In tc_aout_pre_write_hook()\n");
-}
-
-void
-md_operand (expressionP)
- expressionS *expressionP;
-{
- debug ("In md_operand()\n");
-}
-
-char output_invalid_buf[8];
-
-char *
-output_invalid (c)
- char c;
-{
- if (isprint (c))
- sprintf (output_invalid_buf, "'%c'", c);
- else
- sprintf (output_invalid_buf, "(0x%x)", (unsigned) c);
- return output_invalid_buf;
-}
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