-/* tc-z8k.c -- Assemble code for the Zilog Z800N
- Copyright (C) 1992 Free Software Foundation.
+/* tc-z8k.c -- Assemble code for the Zilog Z800n
+ Copyright 1992, 1993, 1994, 1995, 1996, 1998, 2000
+ Free Software Foundation, Inc.
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
- */
#define DEFINE_TABLE
#include <stdio.h>
-#include "../opcodes/z8k-opc.h"
+#include "opcodes/z8k-opc.h"
#include "as.h"
#include "bfd.h"
#include <ctype.h>
-const char comment_chars[] =
-{'!', 0};
-const char line_separator_chars[] =
-{';', 0};
-const char line_comment_chars[] =
-{'#', 0};
+const char comment_chars[] = "!";
+const char line_comment_chars[] = "#";
+const char line_separator_chars[] = ";";
extern int machine;
extern int coff_flags;
int segmented_mode;
const int md_reloc_size;
-/* This table describes all the machine specific pseudo-ops the assembler
- has to support. The fields are:
- pseudo-op name without dot
- function to call to execute this pseudo-op
- Integer arg to pass to the function
- */
-
void cons ();
void
coff_flags = F_Z8002;
}
-static
-void
+static void
even ()
{
- frag_align (1, 0);
+ frag_align (1, 0, 0);
record_alignment (now_seg, 1);
}
void
sval ()
{
-
SKIP_WHITESPACE ();
if (*input_line_pointer == '\'')
{
}
demand_empty_rest_of_line ();
}
-
}
-const pseudo_typeS md_pseudo_table[] =
-{
- {"int", cons, 2},
- {"data.b", cons, 1},
- {"data.w", cons, 2},
- {"data.l", cons, 4},
- {"form", listing_psize, 0},
- {"heading", listing_title, 0},
- {"import", s_ignore, 0},
- {"page", listing_eject, 0},
- {"program", s_ignore, 0},
- {"z8001", s_segm, 0},
- {"z8002", s_unseg, 0},
-
-
- {"segm", s_segm, 0},
- {"unsegm", s_unseg, 0},
- {"unseg", s_unseg, 0},
- {"name", s_app_file, 0},
- {"global", s_globl, 0},
- {"wval", cons, 2},
- {"lval", cons, 4},
- {"bval", cons, 1},
- {"sval", sval, 0},
- {"rsect", obj_coff_section, 0},
- {"sect", obj_coff_section, 0},
- {"block", s_space, 0},
- {"even", even, 0},
- {0, 0, 0}
+
+/* This table describes all the machine specific pseudo-ops the assembler
+ has to support. The fields are:
+ pseudo-op name without dot
+ function to call to execute this pseudo-op
+ Integer arg to pass to the function
+ */
+
+const pseudo_typeS md_pseudo_table[] = {
+ {"int" , cons , 2},
+ {"data.b" , cons , 1},
+ {"data.w" , cons , 2},
+ {"data.l" , cons , 4},
+ {"form" , listing_psize , 0},
+ {"heading", listing_title , 0},
+ {"import" , s_ignore , 0},
+ {"page" , listing_eject , 0},
+ {"program", s_ignore , 0},
+ {"z8001" , s_segm , 0},
+ {"z8002" , s_unseg , 0},
+
+ {"segm" , s_segm , 0},
+ {"unsegm" , s_unseg , 0},
+ {"unseg" , s_unseg , 0},
+ {"name" , s_app_file , 0},
+ {"global" , s_globl , 0},
+ {"wval" , cons , 2},
+ {"lval" , cons , 4},
+ {"bval" , cons , 1},
+ {"sval" , sval , 0},
+ {"rsect" , obj_coff_section, 0},
+ {"sect" , obj_coff_section, 0},
+ {"block" , s_space , 0},
+ {"even" , even , 0},
+ {0 , 0 , 0}
};
const char EXP_CHARS[] = "eE";
-/* Chars that mean this number is a floating point constant */
-/* As in 0f12.456 */
-/* or 0d1.2345e12 */
+/* Chars that mean this number is a floating point constant.
+ As in 0f12.456
+ or 0d1.2345e12 */
const char FLT_CHARS[] = "rRsSfFdDxXpP";
-const relax_typeS md_relax_table[1];
-
-static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
+/* Opcode mnemonics. */
+static struct hash_control *opcode_hash_control;
void
md_begin ()
for (opcode = z8k_table; opcode->name; opcode++)
{
- /* Only enter unique codes into the table */
- char *src = opcode->name;
-
+ /* Only enter unique codes into the table. */
if (strcmp (opcode->name, prev_name))
{
hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
prev_name = opcode->name;
}
- /* default to z8002 */
+ /* Default to z8002. */
s_unseg ();
- /* insert the pseudo ops too */
+ /* Insert the pseudo ops, too. */
for (idx = 0; md_pseudo_table[idx].poc_name; idx++)
{
opcode_entry_type *fake_opcode;
fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type));
- fake_opcode->name = md_pseudo_table[idx].poc_name,
- fake_opcode->func = (void *) (md_pseudo_table + idx);
+ fake_opcode->name = md_pseudo_table[idx].poc_name;
+ fake_opcode->func = (void *) (md_pseudo_table + idx);
fake_opcode->opcode = 250;
-
hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode);
-
}
+
+ linkrelax = 1;
}
-struct z8k_exp
-{
+struct z8k_exp {
char *e_beg;
char *e_end;
expressionS e_exp;
};
-typedef struct z8k_op
-{
- char regsize; /* 'b','w','r','q' */
- unsigned int reg; /* 0..15 */
+
+typedef struct z8k_op {
+ /* 'b','w','r','q'. */
+ char regsize;
+
+ /* 0 .. 15. */
+ unsigned int reg;
int mode;
- unsigned int x_reg; /* any other register associated with the mode */
- expressionS exp; /* any expression */
-}
+ /* Any other register associated with the mode. */
+ unsigned int x_reg;
-op_type;
+ /* Any expression. */
+ expressionS exp;
+} op_type;
static expressionS *da_operand;
static expressionS *imm_operand;
int reg[16];
int the_cc;
+int the_ctrl;
+int the_flags;
+int the_interrupt;
char *
-DEFUN (whatreg, (reg, src),
- int *reg AND
- char *src)
+whatreg (reg, src)
+ int *reg;
+ char *src;
{
if (isdigit (src[1]))
{
}
}
-/*
- parse operands
+/* Parse operands
- rh0-rh7, rl0-rl7
- r0-r15
- rr0-rr14
- rq0--rq12
- WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
- r0l,r0h,..r7l,r7h
- @WREG
- @WREG+
- @-WREG
- #const
+ rh0-rh7, rl0-rl7
+ r0-r15
+ rr0-rr14
+ rq0--rq12
+ WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
+ r0l,r0h,..r7l,r7h
+ @WREG
+ @WREG+
+ @-WREG
+ #const
+*/
- */
+/* Try to parse a reg name. Return a pointer to the first character
+ in SRC after the reg name. */
-/* try and parse a reg name, returns number of chars consumed */
char *
-DEFUN (parse_reg, (src, mode, reg),
- char *src AND
- int *mode AND
- unsigned int *reg)
+parse_reg (src, mode, reg)
+ char *src;
+ int *mode;
+ unsigned int *reg;
{
char *res = 0;
+ char regno;
- if (src[0] == 's' && src[1] == 'p')
+ if (src[0] == 's' && src[1] == 'p' && (src[2] == 0 || src[2] == ','))
{
if (segmented_mode)
{
{
if (src[1] == 'r')
{
+ if (src[2] < '0' || src[2] > '9')
+ return res; /* Assume no register name but a label starting with 'rr'. */
*mode = CLASS_REG_LONG;
res = whatreg (reg, src + 2);
+ regno = *reg;
+ if (regno > 14)
+ as_warn (_("register rr%d, out of range."), regno);
}
else if (src[1] == 'h')
{
+ if (src[2] < '0' || src[2] > '9')
+ return res; /* Assume no register name but a label starting with 'rh'. */
*mode = CLASS_REG_BYTE;
res = whatreg (reg, src + 2);
+ regno = *reg;
+ if (regno > 7)
+ as_warn (_("register rh%d, out of range."), regno);
}
else if (src[1] == 'l')
{
+ if (src[2] < '0' || src[2] > '9')
+ return res; /* Assume no register name but a label starting with 'rl'. */
*mode = CLASS_REG_BYTE;
res = whatreg (reg, src + 2);
+ regno = *reg;
+ if (regno > 7)
+ as_warn (_("register rl%d, out of range."), regno);
*reg += 8;
}
else if (src[1] == 'q')
{
+ if (src[2] < '0' || src[2] > '9')
+ return res; /* Assume no register name but a label starting with 'rq'. */
*mode = CLASS_REG_QUAD;
res = whatreg (reg, src + 2);
+ regno = *reg;
+ if (regno > 12)
+ as_warn (_("register rq%d, out of range."), regno);
}
else
{
+ if (src[1] < '0' || src[1] > '9')
+ return res; /* Assume no register name but a label starting with 'r'. */
*mode = CLASS_REG_WORD;
res = whatreg (reg, src + 1);
+ regno = *reg;
+ if (regno > 15)
+ as_warn (_("register r%d, out of range."), regno);
}
}
return res;
-
}
char *
-DEFUN (parse_exp, (s, op),
- char *s AND
- expressionS * op)
+parse_exp (s, op)
+ char *s;
+ expressionS *op;
{
char *save = input_line_pointer;
char *new;
input_line_pointer = s;
expression (op);
if (op->X_op == O_absent)
- as_bad ("missing operand");
+ as_bad (_("missing operand"));
new = input_line_pointer;
input_line_pointer = save;
return new;
exp(r)
r(#exp)
r(r)
-
-
-
*/
-static
-char *
-DEFUN (checkfor, (ptr, what),
- char *ptr AND
- char what)
+static char *
+checkfor (ptr, what)
+ char *ptr;
+ char what;
{
if (*ptr == what)
ptr++;
else
- {
- as_bad ("expected %c", what);
- }
+ as_bad (_("expected %c"), what);
+
return ptr;
}
-/* Make sure the mode supplied is the size of a word */
+/* Make sure the mode supplied is the size of a word. */
+
static void
-DEFUN (regword, (mode, string),
- int mode AND
- char *string)
+regword (mode, string)
+ int mode;
+ char *string;
{
int ok;
ok = CLASS_REG_WORD;
if (ok != mode)
{
- as_bad ("register is wrong size for a word %s", string);
+ as_bad (_("register is wrong size for a word %s"), string);
}
}
-/* Make sure the mode supplied is the size of an address */
+/* Make sure the mode supplied is the size of an address. */
+
static void
-DEFUN (regaddr, (mode, string),
- int mode AND
- char *string)
+regaddr (mode, string)
+ int mode;
+ char *string;
{
int ok;
ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD;
if (ok != mode)
{
- as_bad ("register is wrong size for address %s", string);
+ as_bad (_("register is wrong size for address %s"), string);
}
}
-struct cc_names
+struct ctrl_names {
+ int value;
+ char *name;
+};
+
+struct ctrl_names ctrl_table[] = {
+ { 0x2, "fcw" },
+ { 0x3, "refresh" },
+ { 0x4, "psapseg" },
+ { 0x5, "psapoff" },
+ { 0x5, "psap" },
+ { 0x6, "nspseg" },
+ { 0x7, "nspoff" },
+ { 0x7, "nsp" },
+ { 0 , 0 }
+};
+
+static void
+get_ctrl_operand (ptr, mode, dst)
+ char **ptr;
+ struct z8k_op *mode;
+ unsigned int dst ATTRIBUTE_UNUSED;
{
+ char *src = *ptr;
+ int i;
+
+ while (*src == ' ')
+ src++;
+
+ mode->mode = CLASS_CTRL;
+ for (i = 0; ctrl_table[i].name; i++)
+ {
+ int j;
+
+ for (j = 0; ctrl_table[i].name[j]; j++)
+ {
+ if (ctrl_table[i].name[j] != src[j])
+ goto fail;
+ }
+ the_ctrl = ctrl_table[i].value;
+ *ptr = src + j;
+ return;
+ fail:
+ ;
+ }
+ the_ctrl = 0;
+ return;
+}
+
+struct flag_names {
int value;
char *name;
};
-struct cc_names table[] =
+struct flag_names flag_table[] = {
+ { 0x1, "p" },
+ { 0x1, "v" },
+ { 0x2, "s" },
+ { 0x4, "z" },
+ { 0x8, "c" },
+ { 0x0, "+" },
+ { 0, 0 }
+};
+
+static void
+get_flags_operand (ptr, mode, dst)
+ char **ptr;
+ struct z8k_op *mode;
+ unsigned int dst ATTRIBUTE_UNUSED;
{
- 0x0, "f",
- 0x1, "lt",
- 0x2, "le",
- 0x3, "ule",
- 0x4, "ov",
- 0x4, "pe",
- 0x5, "mi",
- 0x6, "eq",
- 0x6, "z",
- 0x7, "c",
- 0x7, "ult",
- 0x8, "t",
- 0x9, "ge",
- 0xa, "gt",
- 0xb, "ugt",
- 0xc, "nov",
- 0xc, "po",
- 0xd, "pl",
- 0xe, "ne",
- 0xe, "nz",
- 0xf, "nc",
- 0xf, "uge",
- 0, 0
+ char *src = *ptr;
+ int i;
+ int j;
+
+ while (*src == ' ')
+ src++;
+
+ mode->mode = CLASS_FLAGS;
+ the_flags = 0;
+ for (j = 0; j <= 9; j++)
+ {
+ if (!src[j])
+ goto done;
+ for (i = 0; flag_table[i].name; i++)
+ {
+ if (flag_table[i].name[0] == src[j])
+ {
+ the_flags = the_flags | flag_table[i].value;
+ goto match;
+ }
+ }
+ goto done;
+ match:
+ ;
+ }
+ done:
+ *ptr = src + j;
+ return;
+}
+
+struct interrupt_names {
+ int value;
+ char *name;
+
+};
+
+struct interrupt_names intr_table[] = {
+ { 0x1, "nvi" },
+ { 0x2, "vi" },
+ { 0x3, "both" },
+ { 0x3, "all" },
+ { 0, 0 }
};
static void
-DEFUN (get_cc_operand, (ptr, mode, dst),
- char **ptr AND
- struct z8k_op *mode AND
- unsigned int dst)
+get_interrupt_operand (ptr, mode, dst)
+ char **ptr;
+ struct z8k_op *mode;
+ unsigned int dst ATTRIBUTE_UNUSED;
+{
+ char *src = *ptr;
+ int i;
+
+ while (*src == ' ')
+ src++;
+
+ mode->mode = CLASS_IMM;
+ for (i = 0; intr_table[i].name; i++)
+ {
+ int j;
+
+ for (j = 0; intr_table[i].name[j]; j++)
+ {
+ if (intr_table[i].name[j] != src[j])
+ goto fail;
+ }
+ the_interrupt = intr_table[i].value;
+ *ptr = src + j;
+ return;
+ fail:
+ ;
+ }
+ the_interrupt = 0x0;
+ return;
+}
+
+struct cc_names {
+ int value;
+ char *name;
+
+};
+
+struct cc_names table[] = {
+ { 0x0, "f" },
+ { 0x1, "lt" },
+ { 0x2, "le" },
+ { 0x3, "ule" },
+ { 0x4, "ov" },
+ { 0x4, "pe" },
+ { 0x5, "mi" },
+ { 0x6, "eq" },
+ { 0x6, "z" },
+ { 0x7, "c" },
+ { 0x7, "ult" },
+ { 0x8, "t" },
+ { 0x9, "ge" },
+ { 0xa, "gt" },
+ { 0xb, "ugt" },
+ { 0xc, "nov" },
+ { 0xc, "po" },
+ { 0xd, "pl" },
+ { 0xe, "ne" },
+ { 0xe, "nz" },
+ { 0xf, "nc" },
+ { 0xf, "uge" },
+ { 0 , 0 }
+};
+
+static void
+get_cc_operand (ptr, mode, dst)
+ char **ptr;
+ struct z8k_op *mode;
+ unsigned int dst ATTRIBUTE_UNUSED;
{
char *src = *ptr;
- int r;
int i;
while (*src == ' ')
the_cc = table[i].value;
*ptr = src + j;
return;
- fail:;
+ fail:
+ ;
}
the_cc = 0x8;
- return;
}
static void
get_operand (ptr, mode, dst)
char **ptr;
struct z8k_op *mode;
- unsigned int dst;
+ unsigned int dst ATTRIBUTE_UNUSED;
{
char *src = *ptr;
char *end;
- unsigned int num;
- unsigned int len;
- unsigned int size;
mode->mode = 0;
end = parse_reg (src, &nw, &nr);
if (end)
{
- /* Got Ra(Rb) */
+ /* Got Ra(Rb). */
src = end;
if (*src != ')')
- {
- as_bad ("Missing ) in ra(rb)");
- }
+ as_bad (_("Missing ) in ra(rb)"));
else
- {
- src++;
- }
+ src++;
regaddr (mode->mode, "ra(rb) ra");
-/* regword (mode->mode, "ra(rb) rb");*/
+#if 0
+ regword (mode->mode, "ra(rb) rb");
+#endif
mode->mode = CLASS_BX;
mode->reg = regn;
mode->x_reg = nr;
}
else
{
- /* Got Ra(disp) */
+ /* Got Ra(disp). */
if (*src == '#')
src++;
src = parse_exp (src, &(mode->exp));
}
else
{
- /* No initial reg */
+ /* No initial reg. */
src = parse_exp (src, &(mode->exp));
if (*src == '(')
{
}
else
{
- /* Just an address */
+ /* Just an address. */
mode->mode = CLASS_DA;
mode->reg = 0;
mode->x_reg = 0;
*ptr = src;
}
-static
-char *
+static char *
get_operands (opcode, op_end, operand)
opcode_entry_type *opcode;
char *op_end;
op_type *operand;
{
char *ptr = op_end;
+ char *savptr;
switch (opcode->noperands)
{
{
get_cc_operand (&ptr, operand + 0, 0);
}
+ else if (opcode->arg_info[0] == CLASS_FLAGS)
+ {
+ get_flags_operand (&ptr, operand + 0, 0);
+ }
+ else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2)))
+ {
+ get_interrupt_operand (&ptr, operand + 0, 0);
+ }
else
{
-
get_operand (&ptr, operand + 0, 0);
}
operand[1].mode = 0;
case 2:
ptr++;
+ savptr = ptr;
if (opcode->arg_info[0] == CLASS_CC)
{
get_cc_operand (&ptr, operand + 0, 0);
}
+ else if (opcode->arg_info[0] == CLASS_CTRL)
+ {
+ get_ctrl_operand (&ptr, operand + 0, 0);
+ if (the_ctrl == 0)
+ {
+ ptr = savptr;
+ get_operand (&ptr, operand + 0, 0);
+ if (ptr == 0)
+ return NULL;
+ if (*ptr == ',')
+ ptr++;
+ get_ctrl_operand (&ptr, operand + 1, 1);
+ return ptr;
+ }
+ }
else
{
-
get_operand (&ptr, operand + 0, 0);
}
if (ptr == 0)
- return;
+ return NULL;
if (*ptr == ',')
ptr++;
get_operand (&ptr, operand + 1, 1);
ptr++;
get_cc_operand (&ptr, operand + 3, 3);
break;
+
default:
abort ();
}
}
/* Passed a pointer to a list of opcodes which use different
- addressing modes, return the opcode which matches the opcodes
- provided
- */
+ addressing modes. Return the opcode which matches the opcodes
+ provided. */
-static
-opcode_entry_type *
-DEFUN (get_specific, (opcode, operands),
- opcode_entry_type * opcode AND
- op_type * operands)
+static opcode_entry_type *
+get_specific (opcode, operands)
+ opcode_entry_type *opcode;
+ op_type *operands;
{
opcode_entry_type *this_try = opcode;
int found = 0;
unsigned int noperands = opcode->noperands;
- unsigned int dispreg;
- unsigned int this_index = opcode->idx;
+ int this_index = opcode->idx;
while (this_index == opcode->idx && !found)
{
this_try = opcode++;
for (i = 0; i < noperands; i++)
{
- int mode = operands[i].mode;
+ unsigned int mode = operands[i].mode;
if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK))
{
- /* it could be an pc rel operand, if this is a da mode and
- we like disps, then insert it */
+ /* It could be an pc rel operand, if this is a da mode
+ and we like disps, then insert it. */
if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP)
{
- /* This is the case */
+ /* This is the case. */
operands[i].mode = CLASS_DISP;
}
else if (mode == CLASS_BA && this_try->arg_info[i])
{
- /* Can't think of a way to turn what we've been given into
- something that's ok */
+ /* Can't think of a way to turn what we've been
+ given into something that's OK. */
goto fail;
}
else if (this_try->arg_info[i] & CLASS_PR)
{
if (mode == CLASS_REG_LONG && segmented_mode)
{
- /* ok */
+ /* OK. */
}
else if (mode == CLASS_REG_WORD && !segmented_mode)
{
- /* ok */
+ /* OK. */
}
else
goto fail;
}
found = 1;
- fail:;
+ fail:
+ ;
}
if (found)
return this_try;
return 0;
}
+#if 0 /* Not used. */
static void
-DEFUN (check_operand, (operand, width, string),
- struct z8k_op *operand AND
- unsigned int width AND
- char *string)
+check_operand (operand, width, string)
+ struct z8k_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);
+ as_warn (_("operand %s0x%x out of range."),
+ string, operand->exp.X_add_number);
}
}
}
+#endif
static char buffer[20];
static void
-DEFUN (newfix, (ptr, type, operand),
- int ptr AND
- int type AND
- expressionS * operand)
+newfix (ptr, type, operand)
+ int ptr;
+ int type;
+ expressionS *operand;
{
if (operand->X_add_symbol
|| operand->X_op_symbol
}
static char *
-DEFUN (apply_fix, (ptr, type, operand, size),
- char *ptr AND
- int type AND
- expressionS * operand AND
- int size)
+apply_fix (ptr, type, operand, size)
+ char *ptr;
+ int type;
+ expressionS *operand;
+ int size;
{
int n = operand->X_add_number;
- operand->X_add_number = n;
newfix ((ptr - buffer) / 2, type, operand);
-#if 1
switch (size)
{
- case 8: /* 8 nibbles == 32 bits */
+ case 8: /* 8 nibbles == 32 bits. */
*ptr++ = n >> 28;
*ptr++ = n >> 24;
*ptr++ = n >> 20;
*ptr++ = n >> 16;
- case 4: /* 4 niblles == 16 bits */
+ case 4: /* 4 nibbles == 16 bits. */
*ptr++ = n >> 12;
*ptr++ = n >> 8;
case 2:
*ptr++ = n >> 0;
break;
}
-#endif
return ptr;
-
}
-/* 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. */
+
#define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y;
+
static void
build_bytes (this_try, operand)
- opcode_entry_type * this_try;
- struct z8k_op *operand;
+ opcode_entry_type *this_try;
+ struct z8k_op *operand ATTRIBUTE_UNUSED;
{
- unsigned int i;
-
- int length;
- char *output;
char *output_ptr = buffer;
- char part;
int c;
- char high;
int nib;
int nibble;
unsigned int *class_ptr;
memset (buffer, 20, 0);
class_ptr = this_try->byte_info;
-top:;
- for (nibble = 0; c = *class_ptr++; nibble++)
+ for (nibble = 0; (c = *class_ptr++); nibble++)
{
switch (c & CLASS_MASK)
{
default:
-
abort ();
+
case CLASS_ADDRESS:
- /* Direct address, we don't cope with the SS mode right now */
+ /* Direct address, we don't cope with the SS mode right now. */
if (segmented_mode)
{
- da_operand->X_add_number |= 0x80000000;
+ /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */
output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8);
}
else
da_operand = 0;
break;
case CLASS_DISP8:
- /* pc rel 8 bit */
+ /* pc rel 8 bit */
output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2);
da_operand = 0;
break;
case CLASS_0DISP7:
- /* pc rel 7 bit */
+ /* pc rel 7 bit */
*output_ptr = 0;
output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
da_operand = 0;
break;
case CLASS_1DISP7:
- /* pc rel 7 bit */
+ /* pc rel 7 bit */
*output_ptr = 0x80;
output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
+ output_ptr[-2] = 0x8;
da_operand = 0;
break;
if (imm_operand)
{
if (imm_operand->X_add_number == 2)
- {
- *output_ptr |= 2;
- }
+ *output_ptr |= 2;
else if (imm_operand->X_add_number != 1)
- {
- as_bad ("immediate must be 1 or 2");
- }
+ as_bad (_("immediate must be 1 or 2"));
}
else
- {
- as_bad ("immediate 1 or 2 expected");
- }
+ as_bad (_("immediate 1 or 2 expected"));
output_ptr++;
break;
case CLASS_CC:
*output_ptr++ = the_cc;
break;
+ case CLASS_0CCC:
+ *output_ptr++ = the_ctrl;
+ break;
+ case CLASS_1CCC:
+ *output_ptr++ = the_ctrl | 0x8;
+ break;
+ case CLASS_00II:
+ *output_ptr++ = (~the_interrupt & 0x3);
+ break;
+ case CLASS_01II:
+ *output_ptr++ = (~the_interrupt & 0x3) | 0x4;
+ break;
+ case CLASS_FLAGS:
+ *output_ptr++ = the_flags;
+ break;
case CLASS_BIT:
*output_ptr++ = c & 0xf;
break;
case CLASS_REGN0:
if (reg[c & 0xf] == 0)
- {
- as_bad ("can't use R0 here");
- }
+ as_bad (_("can't use R0 here"));
+ /* Fall through. */
case CLASS_REG:
case CLASS_REG_BYTE:
case CLASS_REG_WORD:
case CLASS_REG_LONG:
case CLASS_REG_QUAD:
- /* Insert bit mattern of
- right reg */
+ /* Insert bit mattern of right reg. */
*output_ptr++ = reg[c & 0xf];
break;
case CLASS_DISP:
- output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
+ switch (c & ARG_MASK)
+ {
+ case ARG_DISP12:
+ output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4);
+ break;
+ case ARG_DISP16:
+ output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4);
+ break;
+ default:
+ output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
+ }
da_operand = 0;
break;
}
}
- /* Copy from the nibble buffer into the frag */
-
+ /* Copy from the nibble buffer into the frag. */
{
int length = (output_ptr - buffer) / 2;
char *src = buffer;
src += 2;
fragp++;
}
-
}
-
}
/* 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.
- */
+ machine dependent instruction. This function is supposed to emit
+ the frags/bytes it assembles to. */
void
-DEFUN (md_assemble, (str),
- char *str)
+md_assemble (str)
+ char *str;
{
+ char c;
char *op_start;
char *op_end;
- unsigned int i;
struct z8k_op operand[3];
opcode_entry_type *opcode;
opcode_entry_type *prev_opcode;
- char *dot = 0;
- char c;
-
- /* 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;
*op_end = 0;
- opcode = (opcode_entry_type *) hash_find (opcode_hash_control,
- op_start);
-
+ opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start);
if (opcode == NULL)
{
- as_bad ("unknown opcode");
+ as_bad (_("unknown opcode"));
return;
}
if (opcode->opcode == 250)
{
- /* was really a pseudo op */
+ /* Was really a pseudo op. */
pseudo_typeS *p;
char oc;
char *old = input_line_pointer;
*op_end = c;
-
input_line_pointer = op_end;
oc = *old;
}
else
{
- input_line_pointer = get_operands (opcode, op_end,
- operand);
+ input_line_pointer = get_operands (opcode, op_end, operand);
prev_opcode = opcode;
opcode = get_specific (opcode, operand);
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;
where[1] = 0x0;
- as_bad ("Can't find opcode to match operands");
+ as_bad (_("Can't find opcode to match operands"));
return;
}
}
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 */
+/* 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)
}
return 0;
}
+\f
+CONST char *md_shortopts = "z:";
-int
-md_parse_option (argP, cntP, vecP)
- char **argP;
- int *cntP;
- char ***vecP;
+struct option md_longopts[] = {
+ {NULL, no_argument, NULL, 0}
+};
+
+size_t md_longopts_size = sizeof (md_longopts);
+int
+md_parse_option (c, arg)
+ int c;
+ char *arg;
{
- if (!strcmp (*argP, "z8001"))
+ switch (c)
{
- s_segm ();
- }
- else if (!strcmp (*argP, "z8002"))
- {
- s_unseg ();
- }
- else
- return 0;
- **argP = 0;
- return 1;
-}
+ case 'z':
+ if (!strcmp (arg, "8001"))
+ s_segm ();
+ else if (!strcmp (arg, "8002"))
+ s_unseg ();
+ else
+ {
+ as_bad (_("invalid architecture -z%s"), arg);
+ return 0;
+ }
+ break;
-int md_short_jump_size;
+ default:
+ return 0;
+ }
-void
-tc_aout_fix_to_chars ()
-{
- printf ("call to tc_aout_fix_to_chars \n");
- abort ();
+ return 1;
}
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;
+md_show_usage (stream)
+ FILE *stream;
{
- as_fatal ("failed sanity check.");
+ fprintf (stream, _("\
+Z8K options:\n\
+-z8001 generate segmented code\n\
+-z8002 generate unsegmented code\n"));
}
-
+\f
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
-DEFUN (md_section_align, (seg, size),
- segT seg AND
- valueT size)
+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]));
}
case R_JR:
*buf++ = val;
- /* if (val != 0) abort();*/
+#if 0
+ if (val != 0)
+ abort ();
+#endif
break;
case R_DISP7:
*buf++ += val;
- /* if (val != 0) abort();*/
+#if 0
+ if (val != 0)
+ abort ();
+#endif
break;
case R_IMM8:
break;
#endif
+ case 0:
+ md_number_to_chars (buf, val, fixP->fx_size);
+ 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 ()
+tc_coff_symbol_emit_hook (s)
+ symbolS *s ATTRIBUTE_UNUSED;
{
}
{
symbolS *symbol_ptr;
+ if (fix_ptr->fx_addsy
+ && fix_ptr->fx_subsy)
+ {
+ symbolS *add = fix_ptr->fx_addsy;
+ symbolS *sub = fix_ptr->fx_subsy;
+
+ if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub))
+ as_bad (_("Can't subtract symbols in different sections %s %s"),
+ S_GET_NAME (add), S_GET_NAME (sub));
+ else
+ {
+ int diff = S_GET_VALUE (add) - S_GET_VALUE (sub);
+
+ fix_ptr->fx_addsy = 0;
+ fix_ptr->fx_subsy = 0;
+ fix_ptr->fx_offset += diff;
+ }
+ }
symbol_ptr = fix_ptr->fx_addsy;
/* If this relocation is attached to a symbol then it's ok
- to output it */
+ to output it. */
if (fix_ptr->fx_r_type == 0)
{
- /* cons likes to create reloc32's whatever the size of the reloc..
- */
+ /* cons likes to create reloc32's whatever the size of the reloc. */
switch (fix_ptr->fx_size)
{
-
case 2:
intr->r_type = R_IMM16;
break;
break;
default:
abort ();
-
}
-
}
else
- {
- intr->r_type = fix_ptr->fx_r_type;
- }
+ intr->r_type = fix_ptr->fx_r_type;
intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
intr->r_offset = fix_ptr->fx_offset;
intr->r_symndx = symbol_ptr->sy_number;
else
intr->r_symndx = -1;
-
}
projects / deliverable / binutils-gdb.git / blobdiff