/* tc-z8k.c -- Assemble code for the Zilog Z800n
- Copyright 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2003
- Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2003,
+ 2005 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
/* Written By Steve Chamberlain <sac@cygnus.com>. */
/* This is non-zero if target was set from the command line. */
static int z8k_target_from_cmdline;
-static void s_segm PARAMS ((int));
-static void even PARAMS ((int));
-static int tohex PARAMS ((int));
-static void sval PARAMS ((int));
-
static void
-s_segm (segm)
- int segm;
+s_segm (int segm)
{
if (segm)
{
- segmented_mode = 1;
- machine = bfd_mach_z8001;
- coff_flags = F_Z8001;
+ segmented_mode = 1;
+ machine = bfd_mach_z8001;
+ coff_flags = F_Z8001;
}
else
{
- segmented_mode = 0;
- machine = bfd_mach_z8002;
- coff_flags = F_Z8002;
+ segmented_mode = 0;
+ machine = bfd_mach_z8002;
+ coff_flags = F_Z8002;
}
}
static void
-even (ignore)
- int ignore ATTRIBUTE_UNUSED;
+even (int ignore ATTRIBUTE_UNUSED)
{
frag_align (1, 0, 0);
record_alignment (now_seg, 1);
}
static int
-tohex (c)
- int c;
+tohex (int c)
{
if (ISDIGIT (c))
return c - '0';
}
static void
-sval (ignore)
- int ignore ATTRIBUTE_UNUSED;
+sval (int ignore ATTRIBUTE_UNUSED)
{
SKIP_WHITESPACE ();
if (*input_line_pointer == '\'')
static struct hash_control *opcode_hash_control;
void
-md_begin ()
+md_begin (void)
{
const opcode_entry_type *opcode;
int idx = -1;
}
}
-struct z8k_exp {
- char *e_beg;
- char *e_end;
- expressionS e_exp;
-};
-
typedef struct z8k_op {
- /* 'b','w','r','q'. */
- char regsize;
+ /* CLASS_REG_xxx. */
+ int regsize;
/* 0 .. 15. */
unsigned int reg;
static expressionS *da_operand;
static expressionS *imm_operand;
-int reg[16];
-int the_cc;
-int the_ctrl;
-int the_flags;
-int the_interrupt;
-
-static char *whatreg PARAMS ((int *, char *));
-static char *parse_reg PARAMS ((char *, int *, unsigned int *));
-static char *parse_exp PARAMS ((char *, expressionS *));
-static char *checkfor PARAMS ((char *, char));
-static void regword PARAMS ((int, char *));
-static void regaddr PARAMS ((int, char *));
-static void get_ctrl_operand
- PARAMS ((char **, struct z8k_op *, unsigned int));
-static void get_flags_operand
- PARAMS ((char **, struct z8k_op *, unsigned int));
-static void get_interrupt_operand
- PARAMS ((char **, struct z8k_op *, unsigned int));
-static void get_cc_operand
- PARAMS ((char **, struct z8k_op *, unsigned int));
-static void get_operand
- PARAMS ((char **, struct z8k_op *, unsigned int));
-static char *get_operands
- PARAMS ((const opcode_entry_type *, char *, op_type *));
-static opcode_entry_type *get_specific
- PARAMS ((opcode_entry_type *, op_type *));
-static void newfix
- PARAMS ((int, int, int, expressionS *));
-static char *apply_fix
- PARAMS ((char *, int, expressionS *, int));
-static void build_bytes
- PARAMS ((opcode_entry_type *, struct z8k_op *));
+static int reg[16];
+static int the_cc;
+static int the_ctrl;
+static int the_flags;
+static int the_interrupt;
static char *
-whatreg (reg, src)
- int *reg;
- char *src;
+whatreg (unsigned int *reg, char *src)
{
if (ISDIGIT (src[1]))
{
in SRC after the reg name. */
static char *
-parse_reg (src, mode, reg)
- char *src;
- int *mode;
- unsigned int *reg;
+parse_reg (char *src, int *mode, unsigned int *reg)
{
char *res = 0;
char regno;
- if (src[0] == 's' && src[1] == 'p' && (src[2] == 0 || src[2] == ','))
+ /* Check for stack pointer "sp" alias. */
+ if ((src[0] == 's' || src[0] == 'S')
+ && (src[1] == 'p' || src[1] == 'P')
+ && (src[2] == 0 || src[2] == ','))
{
if (segmented_mode)
{
}
return src + 2;
}
- if (src[0] == 'r')
+
+ if (src[0] == 'r' || src[0] == 'R')
{
- if (src[1] == 'r')
+ if (src[1] == 'r' || src[1] == 'R')
{
if (src[2] < '0' || src[2] > '9')
return res; /* Assume no register name but a label starting with 'rr'. */
res = whatreg (reg, src + 2);
regno = *reg;
if (regno > 14)
- as_warn (_("register rr%d, out of range."), regno);
+ as_bad (_("register rr%d out of range"), regno);
+ if (regno & 1)
+ as_bad (_("register rr%d does not exist"), regno);
}
- else if (src[1] == 'h')
+ else if (src[1] == 'h' || src[1] == 'H')
{
if (src[2] < '0' || src[2] > '9')
return res; /* Assume no register name but a label starting with 'rh'. */
res = whatreg (reg, src + 2);
regno = *reg;
if (regno > 7)
- as_warn (_("register rh%d, out of range."), regno);
+ as_bad (_("register rh%d out of range"), regno);
}
- else if (src[1] == 'l')
+ else if (src[1] == 'l' || src[1] == 'L')
{
if (src[2] < '0' || src[2] > '9')
return res; /* Assume no register name but a label starting with 'rl'. */
res = whatreg (reg, src + 2);
regno = *reg;
if (regno > 7)
- as_warn (_("register rl%d, out of range."), regno);
+ as_bad (_("register rl%d out of range"), regno);
*reg += 8;
}
- else if (src[1] == 'q')
+ else if (src[1] == 'q' || src[1] == 'Q')
{
if (src[2] < '0' || src[2] > '9')
return res; /* Assume no register name but a label starting with 'rq'. */
res = whatreg (reg, src + 2);
regno = *reg;
if (regno > 12)
- as_warn (_("register rq%d, out of range."), regno);
+ as_bad (_("register rq%d out of range"), regno);
+ if (regno & 3)
+ as_bad (_("register rq%d does not exist"), regno);
}
else
{
res = whatreg (reg, src + 1);
regno = *reg;
if (regno > 15)
- as_warn (_("register r%d, out of range."), regno);
+ as_bad (_("register r%d out of range"), regno);
}
}
return res;
}
static char *
-parse_exp (s, op)
- char *s;
- expressionS *op;
+parse_exp (char *s, expressionS *op)
{
char *save = input_line_pointer;
char *new;
*/
static char *
-checkfor (ptr, what)
- char *ptr;
- char what;
+checkfor (char *ptr, char what)
{
if (*ptr == what)
ptr++;
/* Make sure the mode supplied is the size of a word. */
static void
-regword (mode, string)
- int mode;
- char *string;
+regword (int mode, char *string)
{
int ok;
/* Make sure the mode supplied is the size of an address. */
static void
-regaddr (mode, string)
- int mode;
- char *string;
+regaddr (int mode, char *string)
{
int ok;
char *name;
};
-struct ctrl_names ctrl_table[] = {
- { 0x2, "fcw" },
+static struct ctrl_names ctrl_table[] = {
+ { 0x1, "flags" }, /* ldctlb only. */
+ { 0x2, "fcw" }, /* ldctl only. Applies to all remaining control registers. */
{ 0x3, "refresh" },
{ 0x4, "psapseg" },
{ 0x5, "psapoff" },
};
static void
-get_ctrl_operand (ptr, mode, dst)
- char **ptr;
- struct z8k_op *mode;
- unsigned int dst ATTRIBUTE_UNUSED;
+get_ctrl_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
{
char *src = *ptr;
- int i;
+ int i, l;
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:
- ;
+ l = strlen (ctrl_table[i].name);
+ if (! strncasecmp (ctrl_table[i].name, src, l))
+ {
+ the_ctrl = ctrl_table[i].value;
+ if (*(src + l) && *(src + l) != ',')
+ break;
+ *ptr = src + l; /* Valid control name found: "consume" it. */
+ return;
+ }
}
the_ctrl = 0;
- return;
}
struct flag_names {
int value;
char *name;
-
};
-struct flag_names flag_table[] = {
- { 0x1, "p" },
- { 0x1, "v" },
- { 0x2, "s" },
- { 0x4, "z" },
- { 0x8, "c" },
+static struct flag_names flag_table[] = {
+ { 0x1, "P" },
+ { 0x1, "V" },
+ { 0x2, "S" },
+ { 0x4, "Z" },
+ { 0x8, "C" },
{ 0x0, "+" },
+ { 0x0, "," },
{ 0, 0 }
};
static void
-get_flags_operand (ptr, mode, dst)
- char **ptr;
- struct z8k_op *mode;
- unsigned int dst ATTRIBUTE_UNUSED;
+get_flags_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
{
char *src = *ptr;
+ char c;
int i;
int j;
{
if (!src[j])
goto done;
+ c = TOUPPER(src[j]);
for (i = 0; flag_table[i].name; i++)
{
- if (flag_table[i].name[0] == src[j])
+ if (flag_table[i].name[0] == c)
{
the_flags = the_flags | flag_table[i].value;
goto match;
}
done:
*ptr = src + j;
- return;
}
struct interrupt_names {
int value;
char *name;
-
};
-struct interrupt_names intr_table[] = {
+static struct interrupt_names intr_table[] = {
{ 0x1, "nvi" },
{ 0x2, "vi" },
{ 0x3, "both" },
};
static void
-get_interrupt_operand (ptr, mode, dst)
- char **ptr;
- struct z8k_op *mode;
- unsigned int dst ATTRIBUTE_UNUSED;
+get_interrupt_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
{
char *src = *ptr;
- int i;
+ int i, l;
while (*src == ' ')
src++;
mode->mode = CLASS_IMM;
- for (i = 0; intr_table[i].name; i++)
- {
- int j;
+ the_interrupt = 0;
- for (j = 0; intr_table[i].name[j]; j++)
+ while (*src)
+ {
+ for (i = 0; intr_table[i].name; i++)
{
- if (intr_table[i].name[j] != src[j])
- goto fail;
+ l = strlen (intr_table[i].name);
+ if (! strncasecmp (intr_table[i].name, src, l))
+ {
+ the_interrupt |= intr_table[i].value;
+ if (*(src + l) && *(src + l) != ',')
+ {
+ *ptr = src + l;
+ invalid:
+ as_bad (_("unknown interrupt %s"), src);
+ while (**ptr && ! is_end_of_line[(unsigned char) **ptr])
+ (*ptr)++; /* Consume rest of line. */
+ return;
+ }
+ src += l;
+ if (! *src)
+ {
+ *ptr = src;
+ return;
+ }
+ }
+ }
+ if (*src == ',')
+ src++;
+ else
+ {
+ *ptr = src;
+ goto invalid;
}
- the_interrupt = intr_table[i].value;
- *ptr = src + j;
- return;
- fail:
- ;
}
+
/* No interrupt type specified, opcode won't do anything. */
- as_warn (_("opcode has no effect."));
+ as_warn (_("opcode has no effect"));
the_interrupt = 0x0;
- return;
}
struct cc_names {
char *name;
};
-struct cc_names table[] = {
+static struct cc_names table[] = {
{ 0x0, "f" },
{ 0x1, "lt" },
{ 0x2, "le" },
{ 0x3, "ule" },
+ { 0x4, "ov/pe" },
{ 0x4, "ov" },
+ { 0x4, "pe/ov" },
{ 0x4, "pe" },
{ 0x5, "mi" },
{ 0x6, "eq" },
{ 0x6, "z" },
+ { 0x7, "c/ult" },
{ 0x7, "c" },
+ { 0x7, "ult/c" },
{ 0x7, "ult" },
{ 0x8, "t" },
{ 0x9, "ge" },
{ 0xa, "gt" },
{ 0xb, "ugt" },
+ { 0xc, "nov/po" },
{ 0xc, "nov" },
+ { 0xc, "po/nov" },
{ 0xc, "po" },
{ 0xd, "pl" },
{ 0xe, "ne" },
{ 0xe, "nz" },
+ { 0xf, "nc/uge" },
{ 0xf, "nc" },
+ { 0xf, "uge/nc" },
{ 0xf, "uge" },
{ 0 , 0 }
};
static void
-get_cc_operand (ptr, mode, dst)
- char **ptr;
- struct z8k_op *mode;
- unsigned int dst ATTRIBUTE_UNUSED;
+get_cc_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
{
char *src = *ptr;
- int i;
+ int i, l;
while (*src == ' ')
src++;
mode->mode = CLASS_CC;
for (i = 0; table[i].name; i++)
{
- int j;
-
- for (j = 0; table[i].name[j]; j++)
- {
- if (table[i].name[j] != src[j])
- goto fail;
- }
- the_cc = table[i].value;
- *ptr = src + j;
- return;
- fail:
- ;
+ l = strlen (table[i].name);
+ if (! strncasecmp (table[i].name, src, l))
+ {
+ the_cc = table[i].value;
+ if (*(src + l) && *(src + l) != ',')
+ break;
+ *ptr = src + l; /* Valid cc found: "consume" it. */
+ return;
+ }
}
- the_cc = 0x8;
+ the_cc = 0x8; /* Not recognizing the cc defaults to t. (Assuming no cc present.) */
}
static void
-get_operand (ptr, mode, dst)
- char **ptr;
- struct z8k_op *mode;
- unsigned int dst ATTRIBUTE_UNUSED;
+get_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
{
char *src = *ptr;
char *end;
}
else if (*src == '@')
{
- int d;
-
mode->mode = CLASS_IR;
- src = parse_reg (src + 1, &d, &mode->reg);
+ src = parse_reg (src + 1, &mode->regsize, &mode->reg);
}
else
{
- int regn;
+ unsigned int regn;
end = parse_reg (src, &mode->mode, ®n);
if (end)
{
- int nw, nr;
+ int nw;
+ unsigned int nr;
src = end;
if (*src == '(')
src++;
regaddr (mode->mode, "ra(rb) ra");
-#if 0
- regword (mode->mode, "ra(rb) rb");
-#endif
mode->mode = CLASS_BX;
mode->reg = regn;
mode->x_reg = nr;
}
static char *
-get_operands (opcode, op_end, operand)
- const opcode_entry_type *opcode;
- char *op_end;
- op_type *operand;
+get_operands (const opcode_entry_type *opcode, char *op_end, op_type *operand)
{
char *ptr = op_end;
char *savptr;
- ptr++;
switch (opcode->noperands)
{
case 0:
operand[0].mode = 0;
operand[1].mode = 0;
+ while (*ptr == ' ')
+ ptr++;
break;
case 1:
if (opcode->arg_info[0] == CLASS_CC)
- get_cc_operand (&ptr, operand + 0, 0);
-
+ {
+ get_cc_operand (&ptr, operand + 0, 0);
+ while (*ptr == ' ')
+ ptr++;
+ if (*ptr && ! is_end_of_line[(unsigned char) *ptr])
+ {
+ as_bad (_("invalid condition code '%s'"), ptr);
+ while (*ptr && ! is_end_of_line[(unsigned char) *ptr])
+ ptr++; /* Consume rest of line. */
+ }
+ }
else if (opcode->arg_info[0] == CLASS_FLAGS)
- get_flags_operand (&ptr, operand + 0, 0);
-
+ {
+ get_flags_operand (&ptr, operand + 0, 0);
+ while (*ptr == ' ')
+ ptr++;
+ if (*ptr && ! is_end_of_line[(unsigned char) *ptr])
+ {
+ as_bad (_("invalid flag '%s'"), ptr);
+ while (*ptr && ! is_end_of_line[(unsigned char) *ptr])
+ ptr++; /* Consume rest of line. */
+ }
+ }
else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2)))
get_interrupt_operand (&ptr, operand + 0, 0);
-
else
get_operand (&ptr, operand + 0, 0);
case 2:
savptr = ptr;
if (opcode->arg_info[0] == CLASS_CC)
- get_cc_operand (&ptr, operand + 0, 0);
-
+ {
+ get_cc_operand (&ptr, operand + 0, 0);
+ while (*ptr == ' ')
+ ptr++;
+ if (*ptr != ',' && strchr (ptr + 1, ','))
+ {
+ savptr = ptr;
+ while (*ptr != ',')
+ ptr++;
+ *ptr = 0;
+ ptr++;
+ as_bad (_("invalid condition code '%s'"), savptr);
+ }
+ }
else if (opcode->arg_info[0] == CLASS_CTRL)
{
get_ctrl_operand (&ptr, operand + 0, 0);
if (*ptr == ',')
ptr++;
get_ctrl_operand (&ptr, operand + 1, 1);
+ if (the_ctrl == 0)
+ return NULL;
return ptr;
}
}
provided. */
static opcode_entry_type *
-get_specific (opcode, operands)
- opcode_entry_type *opcode;
- op_type *operands;
+get_specific (opcode_entry_type *opcode, op_type *operands)
{
opcode_entry_type *this_try = opcode;
int found = 0;
{
unsigned int mode = operands[i].mode;
+ if (((mode & CLASS_MASK) == CLASS_IR) && ((this_try->arg_info[i] & CLASS_MASK) == CLASS_IRO))
+ {
+ mode = operands[i].mode = (operands[i].mode & ~CLASS_MASK) | CLASS_IRO;
+ }
+
if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK))
{
/* It could be a pc rel operand, if this is a da mode
{
default:
break;
- case CLASS_X:
+ case CLASS_IRO:
+ if (operands[i].regsize != CLASS_REG_WORD)
+ as_bad (_("invalid indirect register size"));
+ reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
+ break;
case CLASS_IR:
+ if ((segmented_mode && operands[i].regsize != CLASS_REG_LONG)
+ || (!segmented_mode && operands[i].regsize != CLASS_REG_WORD))
+ as_bad (_("invalid indirect register size"));
+ reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
+ break;
+ case CLASS_X:
case CLASS_BA:
case CLASS_BX:
case CLASS_DISP:
case CLASS_REGN0:
reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
break;
+ case CLASS_CTRL:
+ if (this_try->opcode == OPC_ldctlb && the_ctrl != 1)
+ as_bad (_("invalid control register name"));
+ break;
}
}
return 0;
}
-#if 0 /* Not used. */
-static void
-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. */
- 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);
- }
- }
-
-}
-#endif
-
static char buffer[20];
static void
-newfix (ptr, type, size, operand)
- int ptr;
- int type;
- int size; /* nibbles. */
- expressionS *operand;
+newfix (int ptr, int type, int size, expressionS *operand)
{
+ int is_pcrel = 0;
+
+ /* size is in nibbles. */
+
if (operand->X_add_symbol
|| operand->X_op_symbol
|| operand->X_add_number)
{
+ switch(type)
+ {
+ case R_JR:
+ case R_DISP7:
+ case R_CALLR:
+ is_pcrel = 1;
+ }
fix_new_exp (frag_now,
ptr,
size / 2,
operand,
- 0,
+ is_pcrel,
type);
}
}
static char *
-apply_fix (ptr, type, operand, size)
- char *ptr;
- int type;
- expressionS *operand;
- int size; /* nibbles. */
+apply_fix (char *ptr, int type, expressionS *operand, int size)
{
long n = operand->X_add_number;
+ /* size is in nibbles. */
+
newfix ((ptr - buffer) / 2, type, size + 1, operand);
switch (size)
{
/* 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 ATTRIBUTE_UNUSED;
+build_bytes (opcode_entry_type *this_try, struct z8k_op *operand ATTRIBUTE_UNUSED)
{
char *output_ptr = buffer;
int c;
*output_ptr++ = the_cc;
break;
case CLASS_0CCC:
+ if (the_ctrl < 2 || the_ctrl > 7)
+ as_bad (_("invalid control register name"));
*output_ptr++ = the_ctrl;
break;
case CLASS_1CCC:
+ if (the_ctrl < 2 || the_ctrl > 7)
+ as_bad (_("invalid control register name"));
*output_ptr++ = the_ctrl | 0x8;
break;
case CLASS_00II:
the frags/bytes it assembles to. */
void
-md_assemble (str)
- char *str;
+md_assemble (char *str)
{
char c;
char *op_start;
char *op_end;
- struct z8k_op operand[3];
+ struct z8k_op operand[4];
opcode_entry_type *opcode;
- opcode_entry_type *prev_opcode;
/* Drop leading whitespace. */
while (*str == ' ')
/* Find the op code end. */
for (op_start = op_end = str;
- *op_end != 0 && *op_end != ' ';
+ *op_end != 0 && *op_end != ' ' && ! is_end_of_line[(unsigned char) *op_end];
op_end++)
;
}
c = *op_end;
- *op_end = 0;
+ *op_end = 0; /* Zero-terminate op code string for hash_find() call. */
opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start);
return;
}
+ *op_end = c; /* Restore original string. */
+
if (opcode->opcode == 250)
{
pseudo_typeS *p;
char oc;
char *old = input_line_pointer;
- *op_end = c;
/* Was really a pseudo op. */
new_input_line_pointer = get_operands (opcode, op_end, operand);
if (new_input_line_pointer)
- input_line_pointer = new_input_line_pointer;
- prev_opcode = opcode; /* XXX is this used ?? */
+ {
+ input_line_pointer = new_input_line_pointer;
+ opcode = get_specific (opcode, operand);
+ }
- opcode = get_specific (opcode, operand);
-
- if (opcode == 0)
+ if (new_input_line_pointer == NULL || opcode == NULL)
{
/* Couldn't find an opcode which matched the operands. */
char *where = frag_more (2);
}
void
-tc_crawl_symbol_chain (headers)
- object_headers *headers ATTRIBUTE_UNUSED;
+tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED)
{
printf (_("call to tc_crawl_symbol_chain \n"));
}
/* We have no need to default values of symbols. */
symbolS *
-md_undefined_symbol (name)
- char *name ATTRIBUTE_UNUSED;
+md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
{
return 0;
}
void
-tc_headers_hook (headers)
- object_headers *headers ATTRIBUTE_UNUSED;
+tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED)
{
printf (_("call to tc_headers_hook \n"));
}
returned, or NULL on OK. */
char *
-md_atof (type, litP, sizeP)
- char type;
- char *litP;
- int *sizeP;
+md_atof (int type, char *litP, int *sizeP)
{
int prec;
LITTLENUM_TYPE words[MAX_LITTLENUMS];
size_t md_longopts_size = sizeof (md_longopts);
int
-md_parse_option (c, arg)
- int c;
- char *arg;
+md_parse_option (int c, char *arg)
{
switch (c)
{
}
void
-md_show_usage (stream)
- FILE *stream;
+md_show_usage (FILE *stream)
{
fprintf (stream, _("\
Z8K options:\n\
}
\f
void
-md_convert_frag (headers, seg, fragP)
- object_headers *headers ATTRIBUTE_UNUSED;
- segT seg ATTRIBUTE_UNUSED;
- fragS *fragP ATTRIBUTE_UNUSED;
+md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED,
+ segT seg ATTRIBUTE_UNUSED,
+ fragS *fragP ATTRIBUTE_UNUSED)
{
printf (_("call to md_convert_frag\n"));
abort ();
}
valueT
-md_section_align (seg, size)
- segT seg;
- valueT size;
+md_section_align (segT seg, valueT size)
{
return ((size + (1 << section_alignment[(int) seg]) - 1)
& (-1 << section_alignment[(int) seg]));
}
+/* Attempt to simplify or eliminate a fixup. To indicate that a fixup
+ has been eliminated, set fix->fx_done. If fix->fx_addsy is non-NULL,
+ we will have to generate a reloc entry. */
void
-md_apply_fix3 (fixP, valP, segment)
- fixS * fixP;
- valueT * valP;
- segT segment ATTRIBUTE_UNUSED;
+md_apply_fix3 (fixS *fixP, valueT *valP, segT segment ATTRIBUTE_UNUSED)
{
long val = * (long *) valP;
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
break;
case R_JR:
- val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
- if (val & 1)
- as_bad (_("cannot branch to odd address"));
- val /= 2;
- if (val > 127 || val < -128)
- as_bad (_("relative jump out of range"));
- *buf++ = val;
- fixP->fx_no_overflow = 1;
+ if (fixP->fx_addsy)
+ {
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 0;
+ }
+ else
+ {
+ if (val & 1)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("cannot branch to odd address"));
+ val /= 2;
+ if (val > 127 || val < -128)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("relative jump out of range"));
+ *buf++ = val;
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 1;
+ }
break;
case R_DISP7:
- val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
- if (val & 1)
- as_bad (_("cannot branch to odd address"));
- val /= 2;
- if (val > 0 || val < -128)
- as_bad (_("relative jump out of range"));
- *buf = (*buf & 0x80) | (val & 0x7f);
- fixP->fx_no_overflow = 1;
+ if (fixP->fx_addsy)
+ {
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 0;
+ }
+ else
+ {
+ if (val & 1)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("cannot branch to odd address"));
+ val /= 2;
+ if (val > 0 || val < -127)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("relative jump out of range"));
+ *buf = (*buf & 0x80) | (-val & 0x7f);
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 1;
+ }
break;
case R_CALLR:
- if (val > 8191 || val < -8192)
- as_bad (_("relative call out of range"));
- val = -val;
- *buf++ = (buf[0] & 0xf0) | ((val >> 8) & 0xf);
- *buf++ = val & 0xff;
+ if (fixP->fx_addsy)
+ {
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 0;
+ }
+ else
+ {
+ if (val & 1)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("cannot branch to odd address"));
+ if (val > 4096 || val < -4095)
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("relative call out of range"));
+ val = -val / 2;
+ *buf = (*buf & 0xf0) | ((val >> 8) & 0xf);
+ buf++;
+ *buf++ = val & 0xff;
+ fixP->fx_no_overflow = 1;
+ fixP->fx_done = 1;
+ }
break;
case R_IMM8:
case R_REL16:
val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
if (val > 32767 || val < -32768)
- as_bad (_("relative address out of range"));
+ as_bad_where (fixP->fx_file, fixP->fx_line,
+ _("relative address out of range"));
*buf++ = (val >> 8);
*buf++ = val;
fixP->fx_no_overflow = 1;
break;
-#if 0
- case R_DA | R_SEG:
- *buf++ = (val >> 16);
- *buf++ = 0x00;
- *buf++ = (val >> 8);
- *buf++ = val;
- break;
-#endif
-
case 0:
md_number_to_chars (buf, val, fixP->fx_size);
break;
}
int
-md_estimate_size_before_relax (fragP, segment_type)
- register fragS *fragP ATTRIBUTE_UNUSED;
- register segT segment_type ATTRIBUTE_UNUSED;
+md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED,
+ segT segment_type ATTRIBUTE_UNUSED)
{
printf (_("call to md_estimate_size_before_relax\n"));
abort ();
/* Put number into target byte order. */
void
-md_number_to_chars (ptr, use, nbytes)
- char *ptr;
- valueT use;
- int nbytes;
+md_number_to_chars (char *ptr, valueT use, int nbytes)
{
number_to_chars_bigendian (ptr, use, nbytes);
}
+/* On the Z8000, a PC-relative offset is relative to the address of the
+ instruction plus its size. */
long
-md_pcrel_from (fixP)
- fixS *fixP ATTRIBUTE_UNUSED;
+md_pcrel_from (fixS *fixP)
{
- abort ();
+ return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
}
void
-tc_coff_symbol_emit_hook (s)
- symbolS *s ATTRIBUTE_UNUSED;
+tc_coff_symbol_emit_hook (symbolS *s ATTRIBUTE_UNUSED)
{
}
void
-tc_reloc_mangle (fix_ptr, intr, base)
- fixS *fix_ptr;
- struct internal_reloc *intr;
- bfd_vma base;
-
+tc_reloc_mangle (fixS *fix_ptr, struct internal_reloc *intr, bfd_vma base)
{
symbolS *symbol_ptr;
projects / deliverable / binutils-gdb.git / blobdiff