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binutils-gdb/gas/config/tc-h8300.c
Steve Chamberlain 7c2d4011a4 Wed Jun 24 10:57:54 1992 Steve Chamberlain (sac@thepub.cygnus.com) 
* app.c (process_escape): new function to handle escapes the right
	way, (do_scrub_next_char): use new function
	* cond.c (s_ifdef): do ifdef/ifndef right
	* read.c (s_fill): make the , expressions optional like the doc
	says
	* config/tc-h8300.[ch]: better warnings
1992-06-24 18:02:38 +00:00

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/* tc-h8300.c -- Assemble code for the Hitachi H8/300
Copyright (C) 1991, 1992 Free Software Foundation.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/*
Written By Steve Chamberlain
sac@cygnus.com
*/
#include <stdio.h>
#include "as.h"
#include "bfd.h"
#include "opcode/h8300.h"
#include <ctype.h>
#include "listing.h"
char comment_chars[] = { ';',0 };
char line_separator_chars[] = { '$' ,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
*/
void cons();
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},
{ 0,0,0 }
};
int md_reloc_size ;
const char EXP_CHARS[] = "eE";
/* Chars that mean this number is a floating point constant */
/* As in 0f12.456 */
/* or 0d1.2345e12 */
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
*/
#if 0
/* encode the size and number into the number field
xxnnnn
00 8 bit
01 16 bit
10 ccr
nnnnreg number
*/
#define WORD_REG 0x10
#define BYTE_REG 0x00
#define CCR_REG 0x20
struct reg_entry
{
char *name;
char number;
};
struct reg_entry reg_list[] = {
"r0",WORD_REG +0,
"r1",WORD_REG +1,
"r2",WORD_REG +2,
"r3",WORD_REG +3,
"r4",WORD_REG +4,
"r5",WORD_REG +5,
"r6",WORD_REG +6,
"r7",WORD_REG +7,
"fp",WORD_REG +6,
"sp",WORD_REG +7,
"r0h",BYTE_REG + 0,
"r0l",BYTE_REG + 1,
"r1h",BYTE_REG + 2,
"r1l",BYTE_REG + 3,
"r2h",BYTE_REG + 4,
"r2l",BYTE_REG + 5,
"r3h",BYTE_REG + 6,
"r3l",BYTE_REG + 7,
"r4h",BYTE_REG + 8,
"r4l",BYTE_REG + 9,
"r5h",BYTE_REG + 10,
"r5l",BYTE_REG + 11,
"r6h",BYTE_REG + 12,
"r6l",BYTE_REG + 13,
"r7h",BYTE_REG + 14,
"r7l",BYTE_REG + 15,
"ccr",CCR_REG,
0,0
}
;
#endif
void md_begin ()
{
struct h8_opcode *opcode;
const struct reg_entry *reg;
char prev_buffer[100];
int idx = 0;
opcode_hash_control = hash_new();
prev_buffer[0] = 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
*/
char *src= opcode->name;
unsigned int len = strlen(src);
char *dst = malloc(len+1);
char *buffer = dst;
opcode->size = 0;
while (*src) {
if (*src == '.') {
*dst++ = 0;
src++;
opcode->size = *src;
break;
}
*dst++ = *src++;
}
if (strcmp(buffer, prev_buffer))
{
hash_insert(opcode_hash_control, buffer, (char *)opcode);
strcpy(prev_buffer, buffer);
idx++;
}
opcode->idx = idx;
/* 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 */
opcode->length =0;
while (opcode->data.nib[opcode->length*2] != E)
opcode->length++;
}
}
struct h8_exp {
char *e_beg;
char *e_end;
expressionS e_exp;
};
struct h8_op
{
unsigned int dispreg;
op_type mode;
unsigned reg;
expressionS exp;
};
/*
parse operands
WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
r0l,r0h,..r7l,r7h
@WREG
@WREG+
@-WREG
#const
*/
op_type r8_sord[] = {RS8, RD8};
op_type r16_sord[] = {RS16, RD16};
op_type rind_sord[] = {RSIND, RDIND};
op_type abs_sord[2] = {ABS16SRC, ABS16DST};
op_type disp_sord[] = {DISPSRC, DISPDST};
/* try and parse a reg name, returns number of chars consumed */
int
DEFUN(parse_reg,(src, mode, reg, dst),
char *src AND
op_type *mode AND
unsigned int *reg AND
int dst)
{
if (src[0] == 's' && src[1] == 'p')
{
*mode = r16_sord[dst];
*reg = 7;
return 2;
}
if (src[0] == 'c' && src[1] == 'c' && src[2] == 'r')
{
*mode = CCR;
*reg = 0;
return 3;
}
if (src[0] == 'f' && src[1] == 'p')
{
*mode = r16_sord[dst];
*reg = 6;
return 2;
}
if (src[0] == 'r')
{
if (src[1] >= '0' && src[1] <= '7')
{
if(src[2] == 'l')
{
*mode = r8_sord[dst];
*reg = (src[1] - '0') + 8;
return 3;
}
if(src[2] == 'h')
{
*mode = r8_sord[dst];
*reg = (src[1] - '0') ;
return 3;
}
*mode = r16_sord[dst];
*reg = (src[1] - '0');
return 2;
}
}
return 0;
}
char *
DEFUN(parse_exp,(s, op),
char *s AND
expressionS *op)
{
char *save = input_line_pointer;
char *new;
segT seg;
input_line_pointer = s;
seg = expr(0,op);
new = input_line_pointer;
input_line_pointer = save;
if (SEG_NORMAL(seg))
return new;
switch (seg) {
case SEG_ABSOLUTE:
case SEG_UNKNOWN:
case SEG_DIFFERENCE:
case SEG_BIG:
case SEG_REGISTER:
return new;
case SEG_ABSENT:
as_bad("Missing operand");
return new;
default:
as_bad("Don't understand operand of type %s", segment_name (seg));
return new;
}
}
static char *
DEFUN(skip_colonthing,(ptr),
char *ptr)
{
if (*ptr == ':') {
ptr++;
while (isdigit(*ptr))
ptr++;
}
return ptr;
}
/* The many forms of operand:
Rn Register direct
@Rn Register indirect
@(exp[:16], Rn) Register indirect with displacement
@Rn+
@-Rn
@aa:8 absolute 8 bit
@aa:16 absolute 16 bit
@aa absolute 16 bit
#xx[:size] immediate data
@(exp:[8], pc) pc rel
@@aa[:8] memory indirect
*/
static void
DEFUN(get_operand,(ptr, op, dst),
char **ptr AND
struct h8_op *op AND
unsigned int dst)
{
char *src = *ptr;
op_type mode;
unsigned int num;
unsigned int len;
unsigned int size;
op->mode = E;
len = parse_reg(src, &op->mode, &op->reg, dst);
if (len) {
*ptr = src + len;
return ;
}
if (*src == '@')
{
src++;
if (*src == '@')
{
src++;
src = parse_exp(src,&op->exp);
src = skip_colonthing(src);
*ptr = src;
op->mode = MEMIND;
return;
}
if (*src == '-')
{
src++;
len = parse_reg(src, &mode, &num, dst);
if (len == 0)
{
/* Oops, not a reg after all, must be ordinary exp */
src--;
/* must be a symbol */
op->mode = abs_sord[dst];
*ptr = skip_colonthing(parse_exp(src, &op->exp));
return;
}
if (mode != r16_sord[dst])
{
as_bad("@- needs word register");
}
op->mode = RDDEC;
op->reg = num;
*ptr = src + len;
return;
}
if (*src == '(' && ')')
{
/* Disp */
src++;
src = parse_exp(src, &op->exp);
if (*src == ')')
{
src++;
op->mode = abs_sord[dst];
*ptr = src;
return;
}
src = skip_colonthing(src);
if (*src != ',')
{
as_bad("expected @(exp, reg16)");
return;
}
src++;
len = parse_reg(src, &mode, &op->reg, dst);
if (len == 0 || mode != r16_sord[dst])
{
as_bad("expected @(exp, reg16)");
return;
}
op->mode = disp_sord[dst];
src += len;
src = skip_colonthing(src);
if (*src != ')' && '(')
{
as_bad("expected @(exp, reg16)");
return;
}
*ptr = src +1;
return;
}
len = parse_reg(src, &mode, &num, dst);
if(len) {
src += len;
if (*src == '+')
{
src++;
if (mode != RS16)
{
as_bad("@Rn+ needs src word register");
return;
}
op->mode = RSINC;
op->reg = num;
*ptr = src;
return;
}
if (mode != r16_sord[dst])
{
as_bad("@Rn needs word register");
return;
}
op->mode =rind_sord[dst];
op->reg = num;
*ptr = src;
return;
}
else
{
/* must be a symbol */
op->mode = abs_sord[dst];
*ptr = skip_colonthing(parse_exp(src, &op->exp));
return;
}
}
if (*src == '#') {
src++;
op->mode = IMM16;
src = parse_exp(src, &op->exp);
*ptr= skip_colonthing(src);
return;
}
else {
*ptr = parse_exp(src, &op->exp);
op->mode = DISP8;
}
}
static
char *
DEFUN(get_operands,(noperands,op_end, operand),
unsigned int noperands AND
char *op_end AND
struct h8_op *operand)
{
char *ptr = op_end;
switch (noperands)
{
case 0:
operand[0].mode = 0;
operand[1].mode = 0;
break;
case 1:
ptr++;
get_operand(& ptr, operand +0,0);
operand[1].mode =0;
break;
case 2:
ptr++;
get_operand(& ptr, operand +0,0);
if (*ptr == ',') ptr++;
get_operand(& ptr, operand +1, 1);
break;
default:
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 *
DEFUN(get_specific,(opcode, operands),
struct h8_opcode *opcode AND
struct h8_op *operands)
{
struct h8_opcode *this_try = opcode ;
int found = 0;
unsigned int noperands = opcode->noperands;
unsigned int dispreg;
unsigned int this_index = opcode->idx;
while (this_index == opcode->idx && !found)
{
unsigned int i;
this_try = opcode ++;
for (i = 0; i < noperands; i++)
{
op_type op = (this_try->args.nib[i]) & ~(B30|B31);
switch (op)
{
case Hex0:
case Hex1:
case Hex2:
case Hex3:
case Hex4:
case Hex5:
case Hex6:
case Hex7:
case Hex8:
case Hex9:
case HexA:
case HexB:
case HexC:
case HexD:
case HexE:
case HexF:
break;
case DISPSRC:
case DISPDST:
operands[0].dispreg = operands[i].reg;
case RD8:
case RS8:
case RDIND:
case RSIND:
case RD16:
case RS16:
case CCR:
case RSINC:
case RDDEC:
if (operands[i].mode != op) goto fail;
break;
case KBIT:
case IMM16:
case IMM3:
case IMM8:
if (operands[i].mode != IMM16) goto fail;
break;
case MEMIND:
if (operands[i].mode != MEMIND) goto fail;
break;
case ABS16SRC:
case ABS8SRC:
case ABS16OR8SRC:
case ABS16ORREL8SRC:
if (operands[i].mode != ABS16SRC) goto fail;
break;
case ABS16OR8DST:
case ABS16DST:
case ABS8DST:
if (operands[i].mode != ABS16DST) goto fail;
break;
}
}
found =1;
fail: ;
}
if (found)
return this_try;
else
return 0;
}
static void
DEFUN(check_operand,(operand, width, string),
struct h8_op *operand AND
unsigned int width AND
char *string)
{
if (operand->exp.X_add_symbol == 0
&& operand->exp.X_subtract_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);
}
}
}
/* Now we know what sort of opcodes it is, lets build the bytes -
*/
static void
DEFUN (build_bytes,(this_try, operand),
struct h8_opcode *this_try AND
struct h8_op *operand)
{
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;
int nib;
top: ;
while (*nibble_ptr != E)
{
int nibble;
for (nibble = 0; nibble <2; nibble++)
{
c = *nibble_ptr & ~(B30|B31);
switch (c)
{
default:
abort();
case KBIT:
switch (operand[0].exp.X_add_number)
{
case 1:
nib = 0;
break;
case 2:
nib = 8;
break;
default:
as_bad("Need #1 or #2 here");
break;
}
/* stop it making a fix */
operand[0].mode = 0;
break;
case 0:
case 1:
case 2: case 3: case 4: case 5: case 6:
case 7: case 8: case 9: case 10: case 11:
case 12: case 13: case 14: case 15:
nib = c;
break;
case DISPREG:
nib = operand[0].dispreg;
break;
case IMM8:
operand[0].mode = IMM8;
nib = 0;
break;
case DISPDST:
nib = 0;
break;
case IMM3:
if (operand[0].exp.X_add_symbol == 0) {
operand[0].mode = 0; /* stop it making a fix */
nib = (operand[0].exp.X_add_number);
}
else as_bad("can't have symbol for bit number");
if (nib < 0 || nib > 7)
{
as_bad("Bit number out of range %d", nib);
}
break;
case ABS16DST:
nib = 0;
break;
case ABS8DST:
operand[1].mode = ABS8DST;
nib = 0;
break;
case ABS8SRC:
operand[0].mode = ABS8SRC;
nib = 0;
break;
case ABS16OR8DST:
operand[1].mode = c;
nib = 0;
break;
case ABS16ORREL8SRC:
operand[0].mode = c;
nib=0;
break;
case ABS16OR8SRC:
operand[0].mode = ABS16OR8SRC;
nib = 0;
break;
case DISPSRC:
operand[0].mode = ABS16SRC;
nib = 0;
break;
case DISP8:
operand[0].mode = DISP8;
nib = 0;
break;
case ABS16SRC:
case IMM16:
case IGNORE:
case MEMIND:
nib=0;
break;
case RS8:
case RS16:
case RSIND:
case RSINC:
nib = operand[0].reg;
break;
case RD8:
case RD16:
case RDDEC:
case RDIND:
nib = operand[1].reg;
break;
case E:
abort();
break;
}
if (*nibble_ptr & B31) {
nib |=0x8;
}
if (nibble == 0) {
*output_ptr = nib << 4;
}
else {
*output_ptr |= nib;
output_ptr++;
}
nibble_ptr++;
}
}
/* output any fixes */
for (i = 0; i < 2; i++)
{
switch (operand[i].mode) {
case 0:
break;
case DISP8:
check_operand(operand+i, 0x7f,"@");
if (operand[i].exp.X_add_number & 1) {
as_warn("branch operand has odd offset (%x)\n",
operand->exp.X_add_number);
}
fix_new(frag_now,
output - frag_now->fr_literal + 1,
1,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number -1,
1,
R_PCRBYTE);
break;
case IMM8:
check_operand(operand+i, 0xff,"#");
/* If there is nothing else going on we can safely
reloc in place */
if (operand[i].exp.X_add_symbol == 0)
{
output[1] = operand[i].exp.X_add_number;
}
else
{
fix_new(frag_now,
output - frag_now->fr_literal + 1,
1,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number,
0,
R_RELBYTE);
}
break;
case MEMIND:
check_operand(operand+i, 0xff,"@@");
fix_new(frag_now,
output - frag_now->fr_literal + 1,
1,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number,
0,
R_RELBYTE);
break;
case ABS8DST:
case ABS8SRC:
check_operand(operand+i, 0xff,"@");
fix_new(frag_now,
output - frag_now->fr_literal + 1,
1,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number,
0,
R_RELBYTE);
break;
case ABS16OR8SRC:
case ABS16OR8DST:
check_operand(operand+i, 0xffff,"@");
fix_new(frag_now,
output - frag_now->fr_literal + 2,
2,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number,
0,
R_MOVB1);
break;
case ABS16ORREL8SRC:
check_operand(operand+i, 0xffff,"@");
if (operand[i].exp.X_add_number & 1) {
as_warn("branch operand has odd offset (%x)\n",
operand->exp.X_add_number);
}
fix_new(frag_now,
output - frag_now->fr_literal + 2,
2,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number,
0,
R_JMP1);
break;
case ABS16SRC:
case ABS16DST:
case IMM16:
case DISPSRC:
case DISPDST:
check_operand(operand+i, 0xffff,"@");
if (operand[i].exp.X_add_symbol == 0)
{
/* This should be done with bfd */
output[3] = operand[i].exp.X_add_number & 0xff;
output[2] = operand[i].exp.X_add_number >> 8;
}
else
{
fix_new(frag_now,
output - frag_now->fr_literal + 2,
2,
operand[i].exp.X_add_symbol,
operand[i].exp.X_subtract_symbol,
operand[i].exp.X_add_number,
0,
R_RELWORD);
}
break;
case RS8:
case RD8:
case RS16:
case RD16:
case RDDEC:
case KBIT:
case RSINC:
case RDIND:
case RSIND:
case CCR:
break;
default:
abort();
}
}
}
/*
try and 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)
{
struct h8_opcode *scan = opcode;
/* Find out if there was more than one possible opccode */
if ((opcode+1)->idx != opcode->idx)
{
unsigned int argn;
/* Only one opcode of this flavour, try and 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");
return;
}
break;
case RS8:
if (operand[argn].mode != RS8)
{
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");
return;
}
break;
case RD8:
if (operand[argn].mode != RD8)
{
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");
return;
}
break;
}
}
}
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.
*/
void
DEFUN(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;
/* Drop leading whitespace */
while (*str == ' ')
str++;
/* find the op code end */
for (op_start = op_end = str;
*op_end != 0 && *op_end != ' ';
op_end ++)
{
if (*op_end == '.') {
dot = op_end+1;
*op_end = 0;
op_end+=2;
break;
}
}
;
if (op_end == op_start)
{
as_bad("can't find opcode ");
}
c = *op_end;
*op_end = 0;
opcode = (struct h8_opcode *) hash_find(opcode_hash_control,
op_start);
if (opcode == NULL)
{
as_bad("unknown opcode");
return;
}
input_line_pointer = get_operands(opcode->noperands, op_end,
operand);
*op_end = c;
prev_opcode = opcode;
opcode = get_specific(opcode, operand);
if (opcode == 0)
{
/* Couldn't find an opcode which matched the operands */
char *where =frag_more(2);
where[0] = 0x0;
where[1] = 0x0;
clever_message(prev_opcode, operand);
return;
}
if (opcode->size && dot)
{
if (opcode->size != *dot)
{
as_warn("mismatch between opcode size and operand size");
}
}
build_bytes(opcode, operand);
}
void
DEFUN(tc_crawl_symbol_chain, (headers),
object_headers *headers)
{
printf("call to tc_crawl_symbol_chain \n");
}
symbolS *DEFUN(md_undefined_symbol,(name),
char *name)
{
return 0;
}
void
DEFUN(tc_headers_hook,(headers),
object_headers *headers)
{
printf("call to tc_headers_hook \n");
}
void
DEFUN_VOID(md_end)
{
}
/* 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.
*/
char *
md_atof(type,litP,sizeP)
char type;
char *litP;
int *sizeP;
{
int prec;
LITTLENUM_TYPE words[MAX_LITTLENUMS];
LITTLENUM_TYPE *wordP;
char *t;
char *atof_ieee();
switch(type) {
case 'f':
case 'F':
case 's':
case 'S':
prec = 2;
break;
case 'd':
case 'D':
case 'r':
case 'R':
prec = 4;
break;
case 'x':
case 'X':
prec = 6;
break;
case 'p':
case 'P':
prec = 6;
break;
default:
*sizeP=0;
return "Bad call to MD_ATOF()";
}
t=atof_ieee(input_line_pointer,type,words);
if(t)
input_line_pointer=t;
*sizeP=prec * sizeof(LITTLENUM_TYPE);
for(wordP=words;prec--;) {
md_number_to_chars(litP,(long)(*wordP++),sizeof(LITTLENUM_TYPE));
litP+=sizeof(LITTLENUM_TYPE);
}
return ""; /* Someone should teach Dean about null pointers */
}
int
md_parse_option(argP, cntP, vecP)
char **argP;
int *cntP;
char ***vecP;
{
return 0;
}
int md_short_jump_size;
void tc_aout_fix_to_chars () { printf("call to tc_aout_fix_to_chars \n");
abort(); }
void md_create_short_jump(ptr, from_addr, to_addr, frag, to_symbol)
char *ptr;
long from_addr;
long 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;
long from_addr, to_addr;
fragS *frag;
symbolS *to_symbol;
{
as_fatal("failed sanity check.");
}
void
md_convert_frag(headers, fragP)
object_headers *headers;
fragS * fragP;
{ printf("call to md_convert_frag \n"); abort(); }
long
DEFUN(md_section_align,(seg, size),
segT seg AND
long size)
{
return((size + (1 << section_alignment[(int) seg]) - 1) & (-1 << section_alignment[(int) seg]));
}
void
md_apply_fix(fixP, val)
fixS *fixP;
long val;
{
char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
switch(fixP->fx_size) {
case 1:
*buf++=val;
break;
case 2:
*buf++=(val>>8);
*buf++=val;
break;
case 4:
*buf++=(val>>24);
*buf++=(val>>16);
*buf++=(val>>8);
*buf++=val;
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;
{
printf("call tomd_estimate_size_before_relax \n"); abort(); }
/* Put number into target byte order */
void DEFUN(md_number_to_chars,(ptr, use, nbytes),
char *ptr AND
long use AND
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();
}
}
long md_pcrel_from(fixP)
fixS *fixP; { abort(); }
void tc_coff_symbol_emit_hook() { }
void tc_reloc_mangle(fix_ptr, intr, base)
fixS *fix_ptr;
struct internal_reloc *intr;
bfd_vma base;
{
symbolS *symbol_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) {
/* cons likes to create reloc32's whatever the size of the reloc..
*/
switch (fix_ptr->fx_size)
{
case 2:
intr->r_type = R_RELWORD;
break;
case 1:
intr->r_type = R_RELBYTE;
break;
default:
abort();
}
}
else {
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;
if (symbol_ptr)
intr->r_symndx = symbol_ptr->sy_number;
else
intr->r_symndx = -1;
}
/* end of tc-h8300.c */
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