#include "as.h"
#include "safe-ctype.h"
#include "opcode/tic30.h"
#ifdef ANSI_PROTOTYPES
#include <stdarg.h>
#else
#include <varargs.h>
#endif
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);
const char FLT_CHARS[] = "fFdDxX";
const char EXP_CHARS[] = "eE";
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];
#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}
};
int debug PARAMS ((const char *string, ...));
int
debug VPARAMS ((const char *string, ...))
{
if (flag_debug)
{
char str[100];
VA_OPEN (argptr, string);
VA_FIXEDARG (argptr, const char *, string);
vsprintf (str, string, argptr);
VA_CLOSE (argptr);
if (str[0] == '\0')
return (0);
fputs (str, USE_STDOUT ? stdout : stderr);
return strlen (str);
}
else
return 0;
}
static struct hash_control *op_hash;
static struct hash_control *parop_hash;
static struct hash_control *reg_hash;
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);
}
}
{
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;
}
}
#define AM_Register 0x00000000
#define AM_Direct 0x00200000
#define AM_Indirect 0x00400000
#define AM_Immediate 0x00600000
#define AM_NotReq 0xFFFFFFFF
#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;
unsigned opcode;
unsigned int operands;
operand *operand_type[MAX_OPERANDS];
unsigned addressing_mode;
};
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;
unsigned 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;
}
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++;
{
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)
{
int paren_not_balanced;
int expecting_operand = 0;
int this_operand;
do
{
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)
{
this_operand = insn.operands++;
if (insn.operands > MAX_OPERANDS)
{
as_bad ("Spurious operands; (%d operands/instruction max)",
MAX_OPERANDS);
return;
}
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;
}
}
if (*current_posn == ',')
{
if (*++current_posn == END_OF_INSN)
{
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);
if (insn.operands != insn.tm->operands)
{
unsigned int i;
unsigned int numops = insn.tm->operands;
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 (insn.tm->opcode_modifier == AddressMode)
{
int addr_insn = 0;
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 ((insn.tm->operand_types[0] & op3T1) && (insn.tm->operand_types[1] & op3T2))
{
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
{
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
{
as_bad ("Incompatible first and second operands in instruction");
return;
}
break;
}
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
{
char *p;
int am_insn = -1;
insn.opcode = insn.tm->base_opcode;
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)
{
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)
{
insn.opcode |= (insn.operand_type[am_insn]->direct.address & 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[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
{
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)
{
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)
{
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)
{
if (insn.operand_type[0]->op_type & IVector)
insn.opcode |= (insn.operand_type[0]->immediate.u_number);
else
{
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)
{
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))
{
if (insn.operand_type[0]->op_type & Direct)
{
if (insn.operand_type[0]->direct.resolved == 1)
{
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);
fix->fx_no_overflow = 1;
}
}
else
{
if (insn.operand_type[0]->immediate.resolved == 1)
{
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))
{
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)
{
md_number_to_chars (p, (valueT) insn.opcode, INSN_SIZE);
}
else if (insn.tm->operands == 0)
{
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");
}
struct tic30_par_insn {
partemplate *tm;
unsigned operands[2];
operand *operand_type[2][MAX_OPERANDS];
int swap_operands;
unsigned p_field;
unsigned 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++;
{
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};
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:
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;
}
{
int paren_not_balanced;
int expecting_operand = 0;
int found_separator = 0;
do
{
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;
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;
}
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)
{
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;
}
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;
}
}
if (*current_posn == ',')
{
if (*++current_posn == END_OF_INSN)
{
as_bad ("Expecting operand after ','; got nothing");
return 1;
}
expecting_operand = 1;
}
}
while (*current_posn != 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]);
{
int count;
int num_rn = 0;
int num_ind = 0;
for (count = 0; count < 2; count++)
{
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);
return 1;
}
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))
{
if (num_rn != 2)
{
as_bad ("incorrect format for multiply parallel instruction");
return 1;
}
if (num_ind != 2)
{
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;
}
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;
else if (p_insn.operand_type[1][0]->op_type & Indirect)
p_insn.p_field = 0x01000000;
else
p_insn.p_field = 0x03000000;
}
else
{
if (p_insn.operand_type[0][1]->op_type & Rn)
p_insn.p_field = 0x02000000;
else if (p_insn.operand_type[1][0]->op_type & Indirect)
{
operand *temp;
p_insn.p_field = 0x01000000;
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;
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);
{
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;
}
}
{
char *p;
p = frag_more (INSN_SIZE);
md_number_to_chars (p, (valueT) p_insn.opcode, INSN_SIZE);
}
{
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;
{
unsigned 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)
{
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++)
{
ind_buffer[buffer_posn] = TOLOWER (*(token + count));
if ((*(token + count - 1) == 'a' || *(token + count - 1) == 'A') &&
(*(token + count) == 'r' || *(token + count) == 'R'))
{
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) == '(')
{
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)
{
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 <= 31)
current_op->op_type |= IVector;
}
}
return current_op;
}
#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
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 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 ATTRIBUTE_UNUSED;
segT sec ATTRIBUTE_UNUSED;
register fragS *fragP ATTRIBUTE_UNUSED;
{
debug ("In md_convert_frag()\n");
}
void
md_apply_fix3 (fixP, valP, seg)
fixS *fixP;
valueT *valP;
segT seg ATTRIBUTE_UNUSED;
{
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)
value = (value & 0x00FF0000) >> 16;
debug ("new value = %ld\n", (long) value);
md_number_to_chars (buf, value, fixP->fx_size);
}
if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
fixP->fx_done = 1;
}
int
md_parse_option (c, arg)
int c ATTRIBUTE_UNUSED;
char *arg ATTRIBUTE_UNUSED;
{
debug ("In md_parse_option()\n");
return 0;
}
void
md_show_usage (stream)
FILE *stream ATTRIBUTE_UNUSED;
{
debug ("In md_show_usage()\n");
}
symbolS *
md_undefined_symbol (name)
char *name ATTRIBUTE_UNUSED;
{
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);
if (fixP->fx_frag->fr_literal[fixP->fx_where - fixP->fx_size + 1] & 0x20)
offset = 3;
else
offset = 1;
debug ("offset = %d\n", offset);
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;
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);
}
#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 ATTRIBUTE_UNUSED;
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;
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
md_operand (expressionP)
expressionS *expressionP ATTRIBUTE_UNUSED;
{
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;
}