/* tc-h8300.c -- Assemble code for the Hitachi H8/300
- Copyright (C) 1991, 1992 Free Software Foundation.
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 2000
+ Free Software Foundation.
This file is part of GAS, the GNU Assembler.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
-
-/*
- Written By Steve Chamberlain
- sac@cygnus.com
- */
+/* Written By Steve Chamberlain <sac@cygnus.com>. */
#include <stdio.h>
#include "as.h"
+#include "subsegs.h"
#include "bfd.h"
#define DEFINE_TABLE
#define h8_opcodes ops
#include "opcode/h8300.h"
#include <ctype.h>
-const char comment_chars[] =
-{';', 0};
-const char line_separator_chars[] =
-{'$', 0};
+const char comment_chars[] = ";";
const char line_comment_chars[] = "#";
+const char line_separator_chars[] = "";
/* This table describes all the machine specific pseudo-ops the assembler
has to support. The fields are:
void cons ();
int Hmode;
+int Smode;
#define PSIZE (Hmode ? L_32 : L_16)
#define DMODE (L_16)
#define DSYMMODE (Hmode ? L_24 : L_16)
int bsize = L_8; /* default branch displacement */
-
-void
+void
h8300hmode ()
{
Hmode = 1;
+ Smode = 0;
}
+void
+h8300smode ()
+{
+ Smode = 1;
+ Hmode = 1;
+}
-void
+void
sbranch (size)
int size;
{
bsize = size;
}
-const pseudo_typeS md_pseudo_table[] =
+static void
+pint ()
{
+ cons (Hmode ? 4 : 2);
+}
+const pseudo_typeS md_pseudo_table[] =
+{
{"h8300h", h8300hmode, 0},
+ {"h8300s", h8300smode, 0},
{"sbranch", sbranch, L_8},
{"lbranch", sbranch, L_16},
- {"int", cons, 2},
+ {"int", pint, 0},
{"data.b", cons, 1},
{"data.w", cons, 2},
{"data.l", cons, 4},
/* or 0d1.2345e12 */
const char FLT_CHARS[] = "rRsSfFdDxXpP";
-
-const relax_typeS md_relax_table[1];
-
-
static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
-/*
- This function is called once, at assembler startup time. This should
- set up all the tables, etc that the MD part of the assembler needs
- */
-
-
+/* This function is called once, at assembler startup time. This
+ should set up all the tables, etc. that the MD part of the assembler
+ needs. */
void
md_begin ()
{
struct h8_opcode *opcode;
- const struct reg_entry *reg;
char prev_buffer[100];
int idx = 0;
for (opcode = h8_opcodes; opcode->name; opcode++)
{
/* Strip off any . part when inserting the opcode and only enter
- unique codes into the hash table
- */
+ unique codes into the hash table. */
char *src = opcode->name;
unsigned int len = strlen (src);
char *dst = malloc (len + 1);
}
*dst++ = *src++;
}
- *dst++ = 0;
+ *dst++ = 0;
if (strcmp (buffer, prev_buffer))
{
hash_insert (opcode_hash_control, buffer, (char *) opcode);
}
opcode->idx = idx;
-
- /* Find the number of operands */
+ /* Find the number of operands. */
opcode->noperands = 0;
while (opcode->args.nib[opcode->noperands] != E)
opcode->noperands++;
- /* Find the length of the opcode in bytes */
+
+ /* Find the length of the opcode in bytes. */
opcode->length = 0;
while (opcode->data.nib[opcode->length * 2] != E)
opcode->length++;
}
+ linkrelax = 1;
}
-
struct h8_exp
{
char *e_beg;
char *e_end;
expressionS e_exp;
};
+
int dispreg;
int opsize; /* Set when a register size is seen */
-
struct h8_op
{
op_type mode;
@WREG+
@-WREG
#const
+ ccr
+*/
- */
+/* Try to parse a reg name. Return the number of chars consumed. */
-/* try and parse a reg name, returns number of chars consumed */
-int
+static int
parse_reg (src, mode, reg, direction)
char *src;
op_type *mode;
int direction;
{
- if (src[0] == 's' && src[1] == 'p')
+ char *end;
+ int len;
+
+ /* Cribbed from get_symbol_end. */
+ if (!is_name_beginner (*src) || *src == '\001')
+ return 0;
+ end = src + 1;
+ while (is_part_of_name (*end) || *end == '\001')
+ end++;
+ len = end - src;
+
+ if (len == 2 && src[0] == 's' && src[1] == 'p')
{
*mode = PSIZE | REG | direction;
*reg = 7;
- return 2;
+ return len;
}
- if (src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
+ if (len == 3 && src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
{
*mode = CCR;
*reg = 0;
- return 3;
+ return len;
}
- if (src[0] == 'f' && src[1] == 'p')
+ if (len == 3 && src[0] == 'e' && src[1] == 'x' && src[2] == 'r')
+ {
+ *mode = EXR;
+ *reg = 0;
+ return len;
+ }
+ if (len == 2 && src[0] == 'f' && src[1] == 'p')
{
*mode = PSIZE | REG | direction;
*reg = 6;
- return 2;
+ return len;
}
- if (src[0] == 'e'
- && src[1] == 'r'
+ if (len == 3 && src[0] == 'e' && src[1] == 'r'
&& src[2] >= '0' && src[2] <= '7')
{
*mode = L_32 | REG | direction;
*reg = src[2] - '0';
if (!Hmode)
- as_warn ("Reg only legal for H8/300-H");
-
- return 3;
+ as_warn (_("Reg not valid for H8/300"));
+ return len;
}
- if (src[0] == 'e'
- && src[1] >= '0' && src[1] <= '7')
+ if (len == 2 && src[0] == 'e' && src[1] >= '0' && src[1] <= '7')
{
*mode = L_16 | REG | direction;
*reg = src[1] - '0' + 8;
if (!Hmode)
- as_warn ("Reg only legal for H8/300-H");
- return 2;
+ as_warn (_("Reg not valid for H8/300"));
+ return len;
}
if (src[0] == 'r')
{
if (src[1] >= '0' && src[1] <= '7')
{
- if (src[2] == 'l')
+ if (len == 3 && src[2] == 'l')
{
*mode = L_8 | REG | direction;
*reg = (src[1] - '0') + 8;
- return 3;
+ return len;
}
- if (src[2] == 'h')
+ if (len == 3 && src[2] == 'h')
{
*mode = L_8 | REG | direction;
*reg = (src[1] - '0');
- return 3;
+ return len;
+ }
+ if (len == 2)
+ {
+ *mode = L_16 | REG | direction;
+ *reg = (src[1] - '0');
+ return len;
}
- *mode = L_16 | REG | direction;
- *reg = (src[1] - '0');
- return 2;
}
}
+
return 0;
}
-char *
-DEFUN (parse_exp, (s, op),
- char *s AND
- expressionS * op)
+static char *
+parse_exp (s, op)
+ char *s;
+ expressionS *op;
{
char *save = input_line_pointer;
char *new;
input_line_pointer = s;
- if (expression (op) == O_absent)
- as_bad ("missing operand");
+ expression (op);
+ if (op->X_op == O_absent)
+ as_bad (_("missing operand"));
new = input_line_pointer;
input_line_pointer = save;
return new;
static char *
skip_colonthing (ptr, exp, mode)
char *ptr;
- expressionS *exp;
+ expressionS *exp ATTRIBUTE_UNUSED;
int *mode;
{
if (*ptr == ':')
{
ptr++;
+ *mode &= ~SIZE;
if (*ptr == '8')
{
ptr++;
/* ff fill any 8 bit quantity */
- exp->X_add_number |= 0xff00;
+ /* exp->X_add_number -= 0x100; */
+ *mode |= L_8;
}
else
{
- *mode &= ~SIZE;
if (*ptr == '2')
{
*mode |= L_24;
}
+ else if (*ptr == '3')
+ {
+ *mode |= L_32;
+ }
else if (*ptr == '1')
{
*mode |= L_16;
@(exp[:16], Rn) Register indirect with displacement
@Rn+
@-Rn
- @aa:8 absolute 8 bit
- @aa:16 absolute 16 bit
+ @aa:8 absolute 8 bit
+ @aa:16 absolute 16 bit
@aa absolute 16 bit
#xx[:size] immediate data
- @(exp:[8], pc) pc rel
+ @(exp:[8], pc) pc rel
@@aa[:8] memory indirect
*/
if (!mode)
{
- /* Choose a default mode */
+ /* Choose a default mode. */
if (op->exp.X_add_number < -32768
|| op->exp.X_add_number > 32767)
{
if (Hmode)
mode = L_24;
- else
+ else
mode = L_16;
- }
+ }
else if (op->exp.X_add_symbol
|| op->exp.X_op_symbol)
mode = DSYMMODE;
}
op->mode |= mode;
return src;
-
-}
+}
static void
get_operand (ptr, op, dst, direction)
char **ptr;
struct h8_op *op;
- unsigned int dst;
-
+ unsigned int dst ATTRIBUTE_UNUSED;
+ int direction;
{
char *src = *ptr;
op_type mode;
unsigned int num;
unsigned int len;
- unsigned int size;
op->mode = E;
+ /* Gross. Gross. ldm and stm have a format not easily handled
+ by get_operand. We deal with it explicitly here. */
+ if (src[0] == 'e' && src[1] == 'r' && isdigit (src[2])
+ && src[3] == '-' && src[4] == 'e' && src[5] == 'r' && isdigit (src[6]))
+ {
+ int low, high;
+
+ low = src[2] - '0';
+ high = src[6] - '0';
+
+ if (high < low)
+ as_bad (_("Invalid register list for ldm/stm\n"));
+
+ if (low % 2)
+ as_bad (_("Invalid register list for ldm/stm\n"));
+
+ if (high - low > 3)
+ as_bad (_("Invalid register list for ldm/stm\n"));
+
+ if (high - low != 1
+ && low % 4)
+ as_bad (_("Invalid register list for ldm/stm\n"));
+
+ /* Even sicker. We encode two registers into op->reg. One
+ for the low register to save, the other for the high
+ register to save; we also set the high bit in op->reg
+ so we know this is "very special". */
+ op->reg = 0x80000000 | (high << 8) | low;
+ op->mode = REG;
+ *ptr = src + 7;
+ return;
+ }
+
len = parse_reg (src, &op->mode, &op->reg, direction);
if (len)
{
op->mode = MEMIND;
return;
-
}
-
if (*src == '-')
{
src++;
len = parse_reg (src, &mode, &num, direction);
if (len == 0)
{
- /* Oops, not a reg after all, must be ordinary exp */
+ /* Oops, not a reg after all, must be ordinary exp. */
src--;
- /* must be a symbol */
+ /* Must be a symbol. */
op->mode = ABS | PSIZE | direction;
*ptr = skip_colonthing (parse_exp (src, &op->exp),
&op->exp, &op->mode);
return;
-
-
}
-
if ((mode & SIZE) != PSIZE)
- as_bad ("Wrong size pointer register for architecture.");
+ as_bad (_("Wrong size pointer register for architecture."));
op->mode = RDDEC;
op->reg = num;
*ptr = src + len;
return;
}
- if (*src == '(' )
+ if (*src == '(')
{
- /* Disp */
+ /* Disp. */
src++;
- /* Start off assuming a 16 bit offset */
-
+ /* Start off assuming a 16 bit offset. */
src = parse_exp (src, &op->exp);
if (*src == ')')
{
src++;
- op->mode = DISP | direction;
+ op->mode |= ABS | direction;
*ptr = src;
return;
}
if (*src != ',')
{
- as_bad ("expected @(exp, reg16)");
+ as_bad (_("expected @(exp, reg16)"));
return;
}
len = parse_reg (src, &mode, &op->reg, direction);
if (len == 0 || !(mode & REG))
{
- as_bad ("expected @(exp, reg16)");
+ as_bad (_("expected @(exp, reg16)"));
return;
}
op->mode |= DISP | direction;
if (*src != ')' && '(')
{
- as_bad ("expected @(exp, reg16)");
+ as_bad (_("expected @(exp, reg16)"));
return;
}
*ptr = src + 1;
{
src++;
if ((mode & SIZE) != PSIZE)
- as_bad ("Wrong size pointer register for architecture.");
+ as_bad (_("Wrong size pointer register for architecture."));
op->mode = RSINC;
op->reg = num;
*ptr = src;
return;
}
if ((mode & SIZE) != PSIZE)
- as_bad ("Wrong size pointer register for architecture.");
+ as_bad (_("Wrong size pointer register for architecture."));
op->mode = direction | IND | PSIZE;
op->reg = num;
}
}
-
if (*src == '#')
{
src++;
src = parse_exp (src, &op->exp);
*ptr = skip_colonthing (src, &op->exp, &op->mode);
+ return;
+ }
+ else if (strncmp (src, "mach", 4) == 0
+ || strncmp (src, "macl", 4) == 0)
+ {
+ op->reg = src[3] == 'l';
+ op->mode = MACREG;
+ *ptr = src + 4;
return;
}
else
}
else
{
- as_bad ("expect :8 or :16 here");
+ as_bad (_("expect :8 or :16 here"));
}
}
else
}
}
-
-static
-char *
-DEFUN (get_operands, (noperands, op_end, operand),
- unsigned int noperands AND
- char *op_end AND
- struct h8_op *operand)
+static char *
+get_operands (noperands, op_end, operand)
+ unsigned int noperands;
+ char *op_end;
+ struct h8_op *operand;
{
char *ptr = op_end;
{
operand[1].mode = 0;
}
-
break;
+
case 2:
ptr++;
get_operand (&ptr, operand + 0, 0, SRC);
abort ();
}
-
return ptr;
}
/* Passed a pointer to a list of opcodes which use different
addressing modes, return the opcode which matches the opcodes
- provided
- */
-static
-struct h8_opcode *
-get_specific (opcode, operands)
+ provided. */
+static struct h8_opcode *
+get_specific (opcode, operands, size)
struct h8_opcode *opcode;
struct h8_op *operands;
+ int size;
{
struct h8_opcode *this_try = opcode;
int found = 0;
unsigned int this_index = opcode->idx;
+ /* There's only one ldm/stm and it's easier to just
+ get out quick for them. */
+ if (strcmp (opcode->name, "stm.l") == 0
+ || strcmp (opcode->name, "ldm.l") == 0)
+ return this_try;
+
while (this_index == opcode->idx && !found)
{
- unsigned int i;
found = 1;
this_try = opcode++;
- for (i = 0; i < this_try->noperands && found; i++)
+ if (this_try->noperands == 0)
{
- op_type op = this_try->args.nib[i];
- int x = operands[i].mode;
+ int this_size;
- if ((op & (DISP | REG)) == (DISP | REG)
- && ((x & DISP | REG) == (DISP | REG)))
- {
- dispreg = operands[i].reg;
- }
- else if (op & REG)
+ this_size = this_try->how & SN;
+ if (this_size != size && (this_size != SB || size != SN))
+ found = 0;
+ }
+ else
+ {
+ unsigned int i;
+
+ for (i = 0; i < this_try->noperands && found; i++)
{
- if (!(x & REG))
- found = 0;
+ op_type op = this_try->args.nib[i];
+ int x = operands[i].mode;
- if (x & L_P)
+ if ((op & (DISP | REG)) == (DISP | REG)
+ && ((x & (DISP | REG)) == (DISP | REG)))
{
- x = (x & ~L_P) | (Hmode ? L_32 : L_16);
+ dispreg = operands[i].reg;
}
- if (op & L_P)
+ else if (op & REG)
{
- op = (op & ~L_P) | (Hmode ? L_32 : L_16);
- }
+ if (!(x & REG))
+ found = 0;
- opsize = op & SIZE;
+ if (x & L_P)
+ x = (x & ~L_P) | (Hmode ? L_32 : L_16);
+ if (op & L_P)
+ op = (op & ~L_P) | (Hmode ? L_32 : L_16);
- /* The size of the reg is v important */
- if ((op & SIZE) != (x & SIZE))
- found = 0;
- }
- else if ((op & ABSJMP) && (x & ABS))
- {
- operands[i].mode &= ~ABS;
- operands[i].mode |= ABSJMP;
- /* But it may not be 24 bits long */
- if (!Hmode)
+ opsize = op & SIZE;
+
+ /* The size of the reg is v important. */
+ if ((op & SIZE) != (x & SIZE))
+ found = 0;
+ }
+ else if ((op & ABSJMP) && (x & ABS))
{
- operands[i].mode &= ~SIZE;
- operands[i].mode |= L_16;
+ operands[i].mode &= ~ABS;
+ operands[i].mode |= ABSJMP;
+ /* But it may not be 24 bits long. */
+ if (!Hmode)
+ {
+ operands[i].mode &= ~SIZE;
+ operands[i].mode |= L_16;
+ }
+ }
+ else if ((op & (KBIT | DBIT)) && (x & IMM))
+ {
+ /* This is ok if the immediate value is sensible. */
+ }
+ else if (op & PCREL)
+ {
+ /* The size of the displacement is important. */
+ if ((op & SIZE) != (x & SIZE))
+ found = 0;
+ }
+ else if ((op & (DISP | IMM | ABS))
+ && (op & (DISP | IMM | ABS)) == (x & (DISP | IMM | ABS)))
+ {
+ /* Promote a L_24 to L_32 if it makes us match. */
+ if ((x & L_24) && (op & L_32))
+ {
+ x &= ~L_24;
+ x |= L_32;
+ }
+ /* Promote an L8 to L_16 if it makes us match. */
+ if (op & ABS && op & L_8 && op & DISP)
+ {
+ if (x & L_16)
+ found = 1;
+ }
+ else if ((x & SIZE) != 0
+ && ((op & SIZE) != (x & SIZE)))
+ found = 0;
+ }
+ else if ((op & MACREG) != (x & MACREG))
+ {
+ found = 0;
+ }
+ else if ((op & MODE) != (x & MODE))
+ {
+ found = 0;
}
-
-
- }
- else if ((op & (KBIT | DBIT)) && (x & IMM))
- {
- /* This is ok if the immediate value is sensible */
-
- }
- else if (op & PCREL)
- {
-
- /* The size of the displacement is important */
- if ((op & SIZE) != (x & SIZE))
- found = 0;
-
- }
- else if ((op & (DISP | IMM | ABS))
- && (op & (DISP | IMM | ABS)) == (x & (DISP | IMM | ABS)))
- {
- /* Got a diplacement,will fit if no size or same size as try */
- if ((x & SIZE) != 0
- && ((op & SIZE) != (x & SIZE)))
- found = 0;
- }
- else if ((op & ABSMOV) && (x & ABS))
- {
- /* Ok */
- }
- else if ((op & MODE) != (x & MODE))
- {
- found = 0;
}
-
}
}
if (found)
}
static void
-DEFUN (check_operand, (operand, width, string),
- struct h8_op *operand AND
- unsigned int width AND
- char *string)
+check_operand (operand, width, string)
+ struct h8_op *operand;
+ unsigned int width;
+ char *string;
{
if (operand->exp.X_add_symbol == 0
&& operand->exp.X_op_symbol == 0)
{
+ /* No symbol involved, let's look at offset, it's dangerous if
+ any of the high bits are not 0 or ff's, find out by oring or
+ anding with the width and seeing if the answer is 0 or all
+ fs. */
- /* No symbol involved, let's look at offset, it's dangerous if any of
- the high bits are not 0 or ff's, find out by oring or anding with
- the width and seeing if the answer is 0 or all fs*/
if ((operand->exp.X_add_number & ~width) != 0 &&
(operand->exp.X_add_number | width) != (~0))
{
- as_warn ("operand %s0x%x out of range.", string, operand->exp.X_add_number);
+ if (width == 255
+ && (operand->exp.X_add_number & 0xff00) == 0xff00)
+ {
+ /* Just ignore this one - which happens when trying to
+ fit a 16 bit address truncated into an 8 bit address
+ of something like bset. */
+ }
+ else
+ {
+ as_warn (_("operand %s0x%lx out of range."), string,
+ (unsigned long) operand->exp.X_add_number);
+ }
}
}
-
}
+/* RELAXMODE has one of 3 values:
+
+ 0 Output a "normal" reloc, no relaxing possible for this insn/reloc
+
+ 1 Output a relaxable 24bit absolute mov.w address relocation
+ (may relax into a 16bit absolute address).
+
+ 2 Output a relaxable 16/24 absolute mov.b address relocation
+ (may relax into an 8bit absolute address). */
+
static void
-do_a_fix_imm (offset, operand, relaxing)
+do_a_fix_imm (offset, operand, relaxmode)
int offset;
struct h8_op *operand;
- int relaxing;
+ int relaxmode;
{
int idx;
int size;
int where;
-
char *t = operand->mode & IMM ? "#" : "@";
if (operand->exp.X_add_symbol == 0)
char *bytes = frag_now->fr_literal + offset;
switch (operand->mode & SIZE)
{
+ case L_2:
+ check_operand (operand, 0x3, t);
+ bytes[0] |= (operand->exp.X_add_number) << 4;
+ break;
case L_3:
check_operand (operand, 0x7, t);
bytes[0] |= (operand->exp.X_add_number) << 4;
break;
case L_32:
- /* This should be done with bfd */
+ /* This should be done with bfd. */
bytes[0] = operand->exp.X_add_number >> 24;
bytes[1] = operand->exp.X_add_number >> 16;
bytes[2] = operand->exp.X_add_number >> 8;
bytes[3] = operand->exp.X_add_number >> 0;
+ if (relaxmode != 0)
+ {
+ idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1;
+ fix_new_exp (frag_now, offset, 4, &operand->exp, 0, idx);
+ }
break;
}
-
}
else
{
switch (operand->mode & SIZE)
{
- default:
- abort ();
case L_24:
- size = 4;
- where = -1;
- idx = relaxing ? R_MOVLB1 : R_RELLONG;
- break;
-
case L_32:
size = 4;
- where = 0;
- idx = R_RELLONG;
+ where = (operand->mode & SIZE) == L_24 ? -1 : 0;
+ if (relaxmode == 2)
+ idx = R_MOV24B1;
+ else if (relaxmode == 1)
+ idx = R_MOVL1;
+ else
+ idx = R_RELLONG;
break;
+ default:
+ as_bad (_("Can't work out size of operand.\n"));
case L_16:
size = 2;
where = 0;
- idx = relaxing ? R_MOVB1 : R_RELWORD;
+ if (relaxmode == 2)
+ idx = R_MOV16B1;
+ else
+ idx = R_RELWORD;
+ operand->exp.X_add_number =
+ ((operand->exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
break;
case L_8:
size = 1;
where = 0;
idx = R_RELBYTE;
+ operand->exp.X_add_number =
+ ((operand->exp.X_add_number & 0xff) ^ 0x80) - 0x80;
}
-
- operand->exp.X_add_number = (short) operand->exp.X_add_number;
fix_new_exp (frag_now,
offset + where,
size,
0,
idx);
}
-
}
-/* Now we know what sort of opcodes it is, lets build the bytes -
- */
+/* Now we know what sort of opcodes it is, let's build the bytes. */
static void
build_bytes (this_try, operand)
struct h8_opcode *this_try;
unsigned int i;
char *output = frag_more (this_try->length);
- char *output_ptr = output;
op_type *nibble_ptr = this_try->data.nib;
- char part;
op_type c;
- char high;
unsigned int nibble_count = 0;
-
+ int absat;
int immat;
int nib;
+ int movb = 0;
char asnibbles[30];
char *p = asnibbles;
if (!(this_try->inbase || Hmode))
- {
- as_warn ("Opcode `%s' only available on H8/300-H", this_try->name);
- }
+ as_warn (_("Opcode `%s' with these operand types not available in H8/300 mode"),
+ this_try->name);
while (*nibble_ptr != E)
{
int d;
c = *nibble_ptr++;
- d = (c & DST) != 0;
+ d = (c & (DST | SRC_IN_DST)) != 0;
if (c < 16)
{
}
else
{
-
if (c & (REG | IND | INC | DEC))
{
nib = operand[d].reg;
{
nib = dispreg;
}
-
- else if (c & ABSMOV)
+ else if (c & ABS)
{
- operand[d].mode &= ~ABS;
- operand[d].mode |= ABSMOV;
- immat = nibble_count / 2;
+ operand[d].mode = c;
+ absat = nibble_count / 2;
nib = 0;
}
- else if (c & (IMM | PCREL | ABS | ABSJMP | DISP ))
+ else if (c & (IMM | PCREL | ABS | ABSJMP | DISP))
{
operand[d].mode = c;
immat = nibble_count / 2;
nib = 0x8 | c;
break;
default:
- as_bad ("Need #1 or #2 here");
+ as_bad (_("Need #1 or #2 here"));
}
}
else if (c & KBIT)
break;
case 4:
if (!Hmode)
- as_warn ("#4 only valid in h8/300 mode.");
+ as_warn (_("#4 not valid on H8/300."));
nib = 9;
break;
default:
- as_bad ("Need #1 or #2 here");
+ as_bad (_("Need #1 or #2 here"));
break;
}
- /* stop it making a fix */
+ /* Stop it making a fix. */
operand[0].mode = 0;
}
+ if (c & MEMRELAX)
+ {
+ operand[d].mode |= MEMRELAX;
+ }
+
if (c & B31)
{
nib |= 0x8;
}
+
+ if (c & MACREG)
+ {
+ if (operand[0].mode == MACREG)
+ /* stmac has mac[hl] as the first operand. */
+ nib = 2 + operand[0].reg;
+ else
+ /* ldmac has mac[hl] as the second operand. */
+ nib = 2 + operand[1].reg;
+ }
}
nibble_count++;
*p++ = nib;
}
+ /* Disgusting. Why, oh why didn't someone ask us for advice
+ on the assembler format. */
+ if (strcmp (this_try->name, "stm.l") == 0
+ || strcmp (this_try->name, "ldm.l") == 0)
+ {
+ int high, low;
+ high = (operand[this_try->name[0] == 'l' ? 1 : 0].reg >> 8) & 0xf;
+ low = operand[this_try->name[0] == 'l' ? 1 : 0].reg & 0xf;
+
+ asnibbles[2] = high - low;
+ asnibbles[7] = (this_try->name[0] == 'l') ? high : low;
+ }
+
for (i = 0; i < this_try->length; i++)
{
output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1];
}
- /* output any fixes */
+ /* Note if this is a movb instruction -- there's a special relaxation
+ which only applies to them. */
+ if (strcmp (this_try->name, "mov.b") == 0)
+ movb = 1;
+
+ /* Output any fixes. */
for (i = 0; i < 2; i++)
{
int x = operand[i].mode;
- if (x & (IMM | ABS | DISP))
+ if (x & (IMM | DISP))
+ {
+ do_a_fix_imm (output - frag_now->fr_literal + immat,
+ operand + i, x & MEMRELAX != 0);
+ }
+ else if (x & ABS)
{
- do_a_fix_imm (output - frag_now->fr_literal + immat, operand + i,0);
+ do_a_fix_imm (output - frag_now->fr_literal + absat,
+ operand + i, x & MEMRELAX ? movb + 1 : 0);
}
else if (x & PCREL)
{
if (operand[i].exp.X_add_number & 1)
{
- as_warn ("branch operand has odd offset (%x)\n",
- operand->exp.X_add_number);
+ as_warn (_("branch operand has odd offset (%lx)\n"),
+ (unsigned long) operand->exp.X_add_number);
}
+ operand[i].exp.X_add_number -= 1;
operand[i].exp.X_add_number =
- (char) (operand[i].exp.X_add_number - 1);
+ ((operand[i].exp.X_add_number & 0xff) ^ 0x80) - 0x80;
+
fix_new_exp (frag_now,
output - frag_now->fr_literal + where,
size,
}
else if (x & MEMIND)
{
-
check_operand (operand + i, 0xff, "@@");
fix_new_exp (frag_now,
output - frag_now->fr_literal + 1,
1,
&operand[i].exp,
0,
- R_RELBYTE);
- }
-
- else if (x & ABSMOV)
- {
- /* This mov is either absolute long or thru a memory loc */
- do_a_fix_imm (output - frag_now->fr_literal + immat, operand + i,1);
+ R_MEM_INDIRECT);
}
-
else if (x & ABSJMP)
{
- /* This jmp may be a jump or a branch */
+ /* This jmp may be a jump or a branch. */
- check_operand (operand + i, Hmode ? 0xfffff : 0xffff, "@");
+ check_operand (operand + i, Hmode ? 0xffffff : 0xffff, "@");
if (operand[i].exp.X_add_number & 1)
{
- as_warn ("branch operand has odd offset (%x)\n",
- operand->exp.X_add_number);
+ as_warn (_("branch operand has odd offset (%lx)\n"),
+ (unsigned long) operand->exp.X_add_number);
}
- operand[i].exp.X_add_number = (short) operand[i].exp.X_add_number;
+ if (!Hmode)
+ operand[i].exp.X_add_number =
+ ((operand[i].exp.X_add_number & 0xffff) ^ 0x8000) - 0x8000;
fix_new_exp (frag_now,
output - frag_now->fr_literal,
4,
R_JMPL1);
}
}
-
}
-/*
- try and give an intelligent error message for common and simple to
- detect errors
- */
-
+/* Try to give an intelligent error message for common and simple to
+ detect errors. */
static void
-DEFUN (clever_message, (opcode, operand),
- struct h8_opcode *opcode AND
- struct h8_op *operand)
+clever_message (opcode, operand)
+ struct h8_opcode *opcode;
+ struct h8_op *operand;
{
- struct h8_opcode *scan = opcode;
-
- /* Find out if there was more than one possible opccode */
+ /* Find out if there was more than one possible opcode. */
if ((opcode + 1)->idx != opcode->idx)
{
unsigned int argn;
- /* Only one opcode of this flavour, try and guess which operand
- didn't match */
+ /* Only one opcode of this flavour, try to guess which operand
+ didn't match. */
for (argn = 0; argn < opcode->noperands; argn++)
{
switch (opcode->args.nib[argn])
case RD16:
if (operand[argn].mode != RD16)
{
- as_bad ("destination operand must be 16 bit register");
+ as_bad (_("destination operand must be 16 bit register"));
return;
}
break;
case RS8:
-
if (operand[argn].mode != RS8)
{
- as_bad ("source operand must be 8 bit register");
+ as_bad (_("source operand must be 8 bit register"));
return;
}
break;
case ABS16DST:
if (operand[argn].mode != ABS16DST)
{
- as_bad ("destination operand must be 16bit absolute address");
+ as_bad (_("destination operand must be 16bit absolute address"));
return;
}
break;
case RD8:
if (operand[argn].mode != RD8)
{
- as_bad ("destination operand must be 8 bit register");
+ as_bad (_("destination operand must be 8 bit register"));
return;
}
break;
-
case ABS16SRC:
if (operand[argn].mode != ABS16SRC)
{
- as_bad ("source operand must be 16bit absolute address");
+ as_bad (_("source operand must be 16bit absolute address"));
return;
}
break;
}
}
}
- as_bad ("invalid operands");
+ as_bad (_("invalid operands"));
}
-/* This is the guts of the machine-dependent assembler. STR points to a
- machine dependent instruction. This funciton is supposed to emit
- the frags/bytes it assembles to.
- */
-
-
-
+/* This is the guts of the machine-dependent assembler. STR points to
+ a machine dependent instruction. This function is supposed to emit
+ the frags/bytes it assembles. */
void
-DEFUN (md_assemble, (str),
- char *str)
+md_assemble (str)
+ char *str;
{
char *op_start;
char *op_end;
- unsigned int i;
struct h8_op operand[2];
struct h8_opcode *opcode;
struct h8_opcode *prev_opcode;
char *dot = 0;
char c;
+ int size;
- /* Drop leading whitespace */
+ /* Drop leading whitespace. */
while (*str == ' ')
str++;
- /* find the op code end */
+ /* Find the op code end. */
for (op_start = op_end = str;
*op_end != 0 && *op_end != ' ';
op_end++)
}
}
- ;
-
if (op_end == op_start)
{
- as_bad ("can't find opcode ");
+ as_bad (_("can't find opcode "));
}
c = *op_end;
if (opcode == NULL)
{
- as_bad ("unknown opcode");
+ as_bad (_("unknown opcode"));
return;
}
+ /* We used to set input_line_pointer to the result of get_operands,
+ but that is wrong. Our caller assumes we don't change it. */
- input_line_pointer = get_operands (opcode->noperands, op_end,
- operand);
+ (void) get_operands (opcode->noperands, op_end, operand);
*op_end = c;
prev_opcode = opcode;
- opcode = get_specific (opcode, operand);
+ size = SN;
+ if (dot)
+ {
+ switch (*dot)
+ {
+ case 'b':
+ size = SB;
+ break;
+
+ case 'w':
+ size = SW;
+ break;
+
+ case 'l':
+ size = SL;
+ break;
+ }
+ }
+ opcode = get_specific (opcode, operand, size);
if (opcode == 0)
{
- /* Couldn't find an opcode which matched the operands */
+ /* Couldn't find an opcode which matched the operands. */
char *where = frag_more (2);
where[0] = 0x0;
{
if (opcode->size != *dot)
{
- as_warn ("mismatch between opcode size and operand size");
+ as_warn (_("mismatch between opcode size and operand size"));
}
}
build_bytes (opcode, operand);
-
}
void
-DEFUN (tc_crawl_symbol_chain, (headers),
- object_headers * headers)
+tc_crawl_symbol_chain (headers)
+ object_headers *headers ATTRIBUTE_UNUSED;
{
- printf ("call to tc_crawl_symbol_chain \n");
+ printf (_("call to tc_crawl_symbol_chain \n"));
}
symbolS *
-DEFUN (md_undefined_symbol, (name),
- char *name)
+md_undefined_symbol (name)
+ char *name ATTRIBUTE_UNUSED;
{
return 0;
}
void
-DEFUN (tc_headers_hook, (headers),
- object_headers * headers)
-{
- printf ("call to tc_headers_hook \n");
-}
-
-void
-DEFUN_VOID (md_end)
+tc_headers_hook (headers)
+ object_headers *headers ATTRIBUTE_UNUSED;
{
+ printf (_("call to tc_headers_hook \n"));
}
/* Various routines to kill one day */
/* Equal to MAX_PRECISION in atof-ieee.c */
#define MAX_LITTLENUMS 6
-/* Turn a string in input_line_pointer into a floating point constant of type
- type, and store the appropriate bytes in *litP. The number of LITTLENUMS
- emitted is stored in *sizeP . An error message is returned, or NULL on OK.
- */
+/* Turn a string in input_line_pointer into a floating point constant
+ of type TYPE, and store the appropriate bytes in *LITP. The number
+ of LITTLENUMS emitted is stored in *SIZEP. An error message is
+ returned, or NULL on OK. */
+
char *
md_atof (type, litP, sizeP)
char type;
default:
*sizeP = 0;
- return "Bad call to MD_ATOF()";
+ return _("Bad call to MD_ATOF()");
}
t = atof_ieee (input_line_pointer, type, words);
if (t)
md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
litP += sizeof (LITTLENUM_TYPE);
}
- return "";
+ return 0;
}
+\f
+CONST char *md_shortopts = "";
+struct option md_longopts[] = {
+ {NULL, no_argument, NULL, 0}
+};
-int
-md_parse_option (argP, cntP, vecP)
- char **argP;
- int *cntP;
- char ***vecP;
+size_t md_longopts_size = sizeof (md_longopts);
+int
+md_parse_option (c, arg)
+ int c ATTRIBUTE_UNUSED;
+ char *arg ATTRIBUTE_UNUSED;
{
return 0;
-
}
-int md_short_jump_size;
-
void
-tc_aout_fix_to_chars ()
+md_show_usage (stream)
+ FILE *stream ATTRIBUTE_UNUSED;
{
- printf ("call to tc_aout_fix_to_chars \n");
- abort ();
}
-
+\f
void
-md_create_short_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr;
- addressT to_addr;
- fragS *frag;
- symbolS *to_symbol;
-{
- as_fatal ("failed sanity check.");
-}
-
-void
-md_create_long_jump (ptr, from_addr, to_addr, frag, to_symbol)
- char *ptr;
- addressT from_addr, to_addr;
- fragS *frag;
- symbolS *to_symbol;
+tc_aout_fix_to_chars ()
{
- as_fatal ("failed sanity check.");
+ printf (_("call to tc_aout_fix_to_chars \n"));
+ abort ();
}
void
-md_convert_frag (headers, fragP)
- object_headers *headers;
- fragS *fragP;
-
+md_convert_frag (headers, seg, fragP)
+ object_headers *headers ATTRIBUTE_UNUSED;
+ segT seg ATTRIBUTE_UNUSED;
+ fragS *fragP ATTRIBUTE_UNUSED;
{
- printf ("call to md_convert_frag \n");
+ printf (_("call to md_convert_frag \n"));
abort ();
}
-valueT md_section_align (seg, size)
+valueT
+md_section_align (seg, size)
segT seg;
valueT size;
{
- return ((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg]));
-
+ return ((size + (1 << section_alignment[(int) seg]) - 1)
+ & (-1 << section_alignment[(int) seg]));
}
void
break;
default:
abort ();
-
}
}
-void
-DEFUN (md_operand, (expressionP), expressionS * expressionP)
-{
-}
-
-int md_long_jump_size;
int
md_estimate_size_before_relax (fragP, segment_type)
- register fragS *fragP;
- register segT segment_type;
+ register fragS *fragP ATTRIBUTE_UNUSED;
+ register segT segment_type ATTRIBUTE_UNUSED;
{
- printf ("call tomd_estimate_size_before_relax \n");
+ printf (_("call tomd_estimate_size_before_relax \n"));
abort ();
}
-/* Put number into target byte order */
-
+/* Put number into target byte order. */
void
-DEFUN (md_number_to_chars, (ptr, use, nbytes),
- char *ptr AND
- valueT use AND
- int nbytes)
+md_number_to_chars (ptr, use, nbytes)
+ char *ptr;
+ valueT use;
+ int nbytes;
{
- switch (nbytes)
- {
- case 4:
- *ptr++ = (use >> 24) & 0xff;
- case 3:
- *ptr++ = (use >> 16) & 0xff;
- case 2:
- *ptr++ = (use >> 8) & 0xff;
- case 1:
- *ptr++ = (use >> 0) & 0xff;
- break;
- default:
- abort ();
- }
+ number_to_chars_bigendian (ptr, use, nbytes);
}
+
long
md_pcrel_from (fixP)
- fixS *fixP;
+ fixS *fixP ATTRIBUTE_UNUSED;
{
abort ();
}
-void
-tc_coff_symbol_emit_hook ()
-{
-}
-
-
void
tc_reloc_mangle (fix_ptr, intr, base)
fixS *fix_ptr;
symbol_ptr = fix_ptr->fx_addsy;
/* If this relocation is attached to a symbol then it's ok
- to output it */
- if (fix_ptr->fx_r_type == RELOC_32)
+ to output it. */
+ if (fix_ptr->fx_r_type == TC_CONS_RELOC)
{
/* cons likes to create reloc32's whatever the size of the reloc..
*/
switch (fix_ptr->fx_size)
{
-
+ case 4:
+ intr->r_type = R_RELLONG;
+ break;
case 2:
intr->r_type = R_RELWORD;
break;
break;
default:
abort ();
-
}
-
}
else
{
intr->r_offset = fix_ptr->fx_offset;
if (symbol_ptr)
- intr->r_symndx = symbol_ptr->sy_number;
+ {
+ if (symbol_ptr->sy_number != -1)
+ intr->r_symndx = symbol_ptr->sy_number;
+ else
+ {
+ symbolS *segsym;
+
+ /* This case arises when a reference is made to `.'. */
+ segsym = seg_info (S_GET_SEGMENT (symbol_ptr))->dot;
+ if (segsym == NULL)
+ intr->r_symndx = -1;
+ else
+ {
+ intr->r_symndx = segsym->sy_number;
+ intr->r_offset += S_GET_VALUE (symbol_ptr);
+ }
+ }
+ }
else
intr->r_symndx = -1;
-
-
-}
-
-tc_coff_sizemachdep ()
-{
- abort ();
}
-
-/* end of tc-h8300.c */
projects / deliverable / binutils-gdb.git / blobdiff