1 /* tc-z8k.c -- Assemble code for the Zilog Z800n
2 Copyright 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
29 #include "safe-ctype.h"
30 #include "opcodes/z8k-opc.h"
32 const char comment_chars[] = "!";
33 const char line_comment_chars[] = "#";
34 const char line_separator_chars[] = ";";
37 extern int coff_flags;
39 const int md_reloc_size;
41 /* This is non-zero if target was set from the command line. */
42 static int z8k_target_from_cmdline;
44 static void s_segm PARAMS ((int));
45 static void even PARAMS ((int));
46 static int tohex PARAMS ((int));
47 static void sval PARAMS ((int));
56 machine = bfd_mach_z8001;
62 machine = bfd_mach_z8002;
69 int ignore ATTRIBUTE_UNUSED;
72 record_alignment (now_seg, 1);
88 int ignore ATTRIBUTE_UNUSED;
91 if (*input_line_pointer == '\'')
95 c = *input_line_pointer++;
100 c = (tohex (input_line_pointer[0]) << 4)
101 | tohex (input_line_pointer[1]);
102 input_line_pointer += 2;
104 FRAG_APPEND_1_CHAR (c);
105 c = *input_line_pointer++;
107 demand_empty_rest_of_line ();
111 /* This table describes all the machine specific pseudo-ops the assembler
112 has to support. The fields are:
113 pseudo-op name without dot
114 function to call to execute this pseudo-op
115 Integer arg to pass to the function
118 const pseudo_typeS md_pseudo_table[] = {
120 {"data.b" , cons , 1},
121 {"data.w" , cons , 2},
122 {"data.l" , cons , 4},
123 {"form" , listing_psize , 0},
124 {"heading", listing_title , 0},
125 {"import" , s_ignore , 0},
126 {"page" , listing_eject , 0},
127 {"program", s_ignore , 0},
128 {"z8001" , s_segm , 1},
129 {"z8002" , s_segm , 0},
131 {"segm" , s_segm , 1},
132 {"unsegm" , s_segm , 0},
133 {"unseg" , s_segm , 0},
134 {"name" , s_app_file , 0},
135 {"global" , s_globl , 0},
140 {"rsect" , obj_coff_section, 0},
141 {"sect" , obj_coff_section, 0},
142 {"block" , s_space , 0},
147 const char EXP_CHARS[] = "eE";
149 /* Chars that mean this number is a floating point constant.
152 const char FLT_CHARS[] = "rRsSfFdDxXpP";
154 /* Opcode mnemonics. */
155 static struct hash_control *opcode_hash_control;
160 const opcode_entry_type *opcode;
163 opcode_hash_control = hash_new ();
165 for (opcode = z8k_table; opcode->name; opcode++)
167 /* Only enter unique codes into the table. */
168 if (idx != opcode->idx)
169 hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
173 /* Default to z8002. */
174 if (! z8k_target_from_cmdline)
177 /* Insert the pseudo ops, too. */
178 for (idx = 0; md_pseudo_table[idx].poc_name; idx++)
180 opcode_entry_type *fake_opcode;
181 fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type));
182 fake_opcode->name = md_pseudo_table[idx].poc_name;
183 fake_opcode->func = (void *) (md_pseudo_table + idx);
184 fake_opcode->opcode = 250;
185 hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode);
195 typedef struct z8k_op {
196 /* 'b','w','r','q'. */
204 /* Any other register associated with the mode. */
207 /* Any expression. */
211 static expressionS *da_operand;
212 static expressionS *imm_operand;
220 static char *whatreg PARAMS ((int *, char *));
221 static char *parse_reg PARAMS ((char *, int *, unsigned int *));
222 static char *parse_exp PARAMS ((char *, expressionS *));
223 static char *checkfor PARAMS ((char *, char));
224 static void regword PARAMS ((int, char *));
225 static void regaddr PARAMS ((int, char *));
226 static void get_ctrl_operand
227 PARAMS ((char **, struct z8k_op *, unsigned int));
228 static void get_flags_operand
229 PARAMS ((char **, struct z8k_op *, unsigned int));
230 static void get_interrupt_operand
231 PARAMS ((char **, struct z8k_op *, unsigned int));
232 static void get_cc_operand
233 PARAMS ((char **, struct z8k_op *, unsigned int));
234 static void get_operand
235 PARAMS ((char **, struct z8k_op *, unsigned int));
236 static char *get_operands
237 PARAMS ((const opcode_entry_type *, char *, op_type *));
238 static opcode_entry_type *get_specific
239 PARAMS ((opcode_entry_type *, op_type *));
241 PARAMS ((int, int, int, expressionS *));
242 static char *apply_fix
243 PARAMS ((char *, int, expressionS *, int));
244 static void build_bytes
245 PARAMS ((opcode_entry_type *, struct z8k_op *));
252 if (ISDIGIT (src[1]))
254 *reg = (src[0] - '0') * 10 + src[1] - '0';
259 *reg = (src[0] - '0');
270 WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
278 /* Try to parse a reg name. Return a pointer to the first character
279 in SRC after the reg name. */
282 parse_reg (src, mode, reg)
290 if (src[0] == 's' && src[1] == 'p' && (src[2] == 0 || src[2] == ','))
294 *mode = CLASS_REG_LONG;
299 *mode = CLASS_REG_WORD;
308 if (src[2] < '0' || src[2] > '9')
309 return res; /* Assume no register name but a label starting with 'rr'. */
310 *mode = CLASS_REG_LONG;
311 res = whatreg (reg, src + 2);
314 as_warn (_("register rr%d, out of range."), regno);
316 else if (src[1] == 'h')
318 if (src[2] < '0' || src[2] > '9')
319 return res; /* Assume no register name but a label starting with 'rh'. */
320 *mode = CLASS_REG_BYTE;
321 res = whatreg (reg, src + 2);
324 as_warn (_("register rh%d, out of range."), regno);
326 else if (src[1] == 'l')
328 if (src[2] < '0' || src[2] > '9')
329 return res; /* Assume no register name but a label starting with 'rl'. */
330 *mode = CLASS_REG_BYTE;
331 res = whatreg (reg, src + 2);
334 as_warn (_("register rl%d, out of range."), regno);
337 else if (src[1] == 'q')
339 if (src[2] < '0' || src[2] > '9')
340 return res; /* Assume no register name but a label starting with 'rq'. */
341 *mode = CLASS_REG_QUAD;
342 res = whatreg (reg, src + 2);
345 as_warn (_("register rq%d, out of range."), regno);
349 if (src[1] < '0' || src[1] > '9')
350 return res; /* Assume no register name but a label starting with 'r'. */
351 *mode = CLASS_REG_WORD;
352 res = whatreg (reg, src + 1);
355 as_warn (_("register r%d, out of range."), regno);
366 char *save = input_line_pointer;
369 input_line_pointer = s;
371 if (op->X_op == O_absent)
372 as_bad (_("missing operand"));
373 new = input_line_pointer;
374 input_line_pointer = save;
378 /* The many forms of operand:
400 as_bad (_("expected %c"), what);
405 /* Make sure the mode supplied is the size of a word. */
408 regword (mode, string)
417 as_bad (_("register is wrong size for a word %s"), string);
421 /* Make sure the mode supplied is the size of an address. */
424 regaddr (mode, string)
430 ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD;
433 as_bad (_("register is wrong size for address %s"), string);
442 struct ctrl_names ctrl_table[] = {
455 get_ctrl_operand (ptr, mode, dst)
458 unsigned int dst ATTRIBUTE_UNUSED;
466 mode->mode = CLASS_CTRL;
467 for (i = 0; ctrl_table[i].name; i++)
471 for (j = 0; ctrl_table[i].name[j]; j++)
473 if (ctrl_table[i].name[j] != src[j])
476 the_ctrl = ctrl_table[i].value;
492 struct flag_names flag_table[] = {
503 get_flags_operand (ptr, mode, dst)
506 unsigned int dst ATTRIBUTE_UNUSED;
515 mode->mode = CLASS_FLAGS;
517 for (j = 0; j <= 9; j++)
521 for (i = 0; flag_table[i].name; i++)
523 if (flag_table[i].name[0] == src[j])
525 the_flags = the_flags | flag_table[i].value;
538 struct interrupt_names {
544 struct interrupt_names intr_table[] = {
553 get_interrupt_operand (ptr, mode, dst)
556 unsigned int dst ATTRIBUTE_UNUSED;
564 mode->mode = CLASS_IMM;
565 for (i = 0; intr_table[i].name; i++)
569 for (j = 0; intr_table[i].name[j]; j++)
571 if (intr_table[i].name[j] != src[j])
574 the_interrupt = intr_table[i].value;
580 /* No interrupt type specified, opcode won't do anything. */
581 as_warn (_("opcode has no effect."));
591 struct cc_names table[] = {
618 get_cc_operand (ptr, mode, dst)
621 unsigned int dst ATTRIBUTE_UNUSED;
629 mode->mode = CLASS_CC;
630 for (i = 0; table[i].name; i++)
634 for (j = 0; table[i].name[j]; j++)
636 if (table[i].name[j] != src[j])
639 the_cc = table[i].value;
649 get_operand (ptr, mode, dst)
652 unsigned int dst ATTRIBUTE_UNUSED;
663 mode->mode = CLASS_IMM;
664 imm_operand = &(mode->exp);
665 src = parse_exp (src + 1, &(mode->exp));
667 else if (*src == '@')
671 mode->mode = CLASS_IR;
672 src = parse_reg (src + 1, &d, &mode->reg);
678 end = parse_reg (src, &mode->mode, ®n);
688 end = parse_reg (src, &nw, &nr);
695 as_bad (_("Missing ) in ra(rb)"));
699 regaddr (mode->mode, "ra(rb) ra");
701 regword (mode->mode, "ra(rb) rb");
703 mode->mode = CLASS_BX;
713 src = parse_exp (src, &(mode->exp));
714 src = checkfor (src, ')');
715 mode->mode = CLASS_BA;
718 imm_operand = &(mode->exp);
729 /* No initial reg. */
730 src = parse_exp (src, &(mode->exp));
734 end = parse_reg (src, &(mode->mode), ®n);
735 regword (mode->mode, "addr(Ra) ra");
736 mode->mode = CLASS_X;
739 da_operand = &(mode->exp);
740 src = checkfor (end, ')');
744 /* Just an address. */
745 mode->mode = CLASS_DA;
748 da_operand = &(mode->exp);
756 get_operands (opcode, op_end, operand)
757 const opcode_entry_type *opcode;
765 switch (opcode->noperands)
773 if (opcode->arg_info[0] == CLASS_CC)
774 get_cc_operand (&ptr, operand + 0, 0);
776 else if (opcode->arg_info[0] == CLASS_FLAGS)
777 get_flags_operand (&ptr, operand + 0, 0);
779 else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2)))
780 get_interrupt_operand (&ptr, operand + 0, 0);
783 get_operand (&ptr, operand + 0, 0);
790 if (opcode->arg_info[0] == CLASS_CC)
791 get_cc_operand (&ptr, operand + 0, 0);
793 else if (opcode->arg_info[0] == CLASS_CTRL)
795 get_ctrl_operand (&ptr, operand + 0, 0);
800 get_operand (&ptr, operand + 0, 0);
806 get_ctrl_operand (&ptr, operand + 1, 1);
811 get_operand (&ptr, operand + 0, 0);
817 get_operand (&ptr, operand + 1, 1);
821 get_operand (&ptr, operand + 0, 0);
824 get_operand (&ptr, operand + 1, 1);
827 get_operand (&ptr, operand + 2, 2);
831 get_operand (&ptr, operand + 0, 0);
834 get_operand (&ptr, operand + 1, 1);
837 get_operand (&ptr, operand + 2, 2);
840 get_cc_operand (&ptr, operand + 3, 3);
850 /* Passed a pointer to a list of opcodes which use different
851 addressing modes. Return the opcode which matches the opcodes
854 static opcode_entry_type *
855 get_specific (opcode, operands)
856 opcode_entry_type *opcode;
859 opcode_entry_type *this_try = opcode;
861 unsigned int noperands = opcode->noperands;
863 int this_index = opcode->idx;
865 while (this_index == opcode->idx && !found)
870 for (i = 0; i < noperands; i++)
872 unsigned int mode = operands[i].mode;
874 if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK))
876 /* It could be a pc rel operand, if this is a da mode
877 and we like disps, then insert it. */
879 if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP)
881 /* This is the case. */
882 operands[i].mode = CLASS_DISP;
884 else if (mode == CLASS_BA && this_try->arg_info[i])
886 /* Can't think of a way to turn what we've been
887 given into something that's OK. */
890 else if (this_try->arg_info[i] & CLASS_PR)
892 if (mode == CLASS_REG_LONG && segmented_mode)
896 else if (mode == CLASS_REG_WORD && !segmented_mode)
906 switch (mode & CLASS_MASK)
921 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
936 #if 0 /* Not used. */
938 check_operand (operand, width, string)
939 struct z8k_op *operand;
943 if (operand->exp.X_add_symbol == 0
944 && operand->exp.X_op_symbol == 0)
947 /* No symbol involved, let's look at offset, it's dangerous if
948 any of the high bits are not 0 or ff's, find out by oring or
949 anding with the width and seeing if the answer is 0 or all
951 if ((operand->exp.X_add_number & ~width) != 0 &&
952 (operand->exp.X_add_number | width) != (~0))
954 as_warn (_("operand %s0x%x out of range."),
955 string, operand->exp.X_add_number);
962 static char buffer[20];
965 newfix (ptr, type, size, operand)
968 int size; /* nibbles. */
969 expressionS *operand;
971 if (operand->X_add_symbol
972 || operand->X_op_symbol
973 || operand->X_add_number)
975 fix_new_exp (frag_now,
985 apply_fix (ptr, type, operand, size)
988 expressionS *operand;
989 int size; /* nibbles. */
991 long n = operand->X_add_number;
993 newfix ((ptr - buffer) / 2, type, size + 1, operand);
996 case 8: /* 8 nibbles == 32 bits. */
1001 case 4: /* 4 nibbles == 16 bits. */
1013 /* Now we know what sort of opcodes it is. Let's build the bytes. */
1015 #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y;
1018 build_bytes (this_try, operand)
1019 opcode_entry_type *this_try;
1020 struct z8k_op *operand ATTRIBUTE_UNUSED;
1022 char *output_ptr = buffer;
1025 unsigned int *class_ptr;
1027 frag_wane (frag_now);
1030 memset (buffer, 0, sizeof (buffer));
1031 class_ptr = this_try->byte_info;
1033 for (nibble = 0; (c = *class_ptr++); nibble++)
1036 switch (c & CLASS_MASK)
1042 /* Direct address, we don't cope with the SS mode right now. */
1045 /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */
1046 output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8);
1050 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1056 output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2);
1063 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1070 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1071 output_ptr[-2] = 0x8;
1075 case CLASS_BIT_1OR2:
1076 *output_ptr = c & 0xf;
1079 if (imm_operand->X_add_number == 2)
1081 else if (imm_operand->X_add_number != 1)
1082 as_bad (_("immediate must be 1 or 2"));
1085 as_bad (_("immediate 1 or 2 expected"));
1089 *output_ptr++ = the_cc;
1092 *output_ptr++ = the_ctrl;
1095 *output_ptr++ = the_ctrl | 0x8;
1098 *output_ptr++ = (~the_interrupt & 0x3);
1101 *output_ptr++ = (~the_interrupt & 0x3) | 0x4;
1104 *output_ptr++ = the_flags;
1108 *output_ptr++ = c & 0xf;
1111 if (reg[c & 0xf] == 0)
1112 as_bad (_("can't use R0 here"));
1115 case CLASS_REG_BYTE:
1116 case CLASS_REG_WORD:
1117 case CLASS_REG_LONG:
1118 case CLASS_REG_QUAD:
1119 /* Insert bit mattern of right reg. */
1120 *output_ptr++ = reg[c & 0xf];
1123 switch (c & ARG_MASK)
1126 output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4);
1129 output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4);
1132 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1139 switch (c & ARG_MASK)
1142 if (imm_operand->X_add_number > 15)
1144 as_bad (_("immediate value out of range"));
1146 imm_operand->X_add_number = -imm_operand->X_add_number;
1147 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1149 /*case ARG_IMMNMINUS1: not used. */
1151 imm_operand->X_add_number--;
1154 if (imm_operand->X_add_number > 15)
1156 as_bad (_("immediate value out of range"));
1158 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1161 imm_operand->X_add_number = -imm_operand->X_add_number;
1164 output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2);
1167 output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4);
1170 output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8);
1179 /* Copy from the nibble buffer into the frag. */
1181 int length = (output_ptr - buffer) / 2;
1183 char *fragp = frag_more (length);
1185 while (src < output_ptr)
1187 *fragp = (src[0] << 4) | src[1];
1194 /* This is the guts of the machine-dependent assembler. STR points to a
1195 machine dependent instruction. This function is supposed to emit
1196 the frags/bytes it assembles to. */
1205 struct z8k_op operand[3];
1206 opcode_entry_type *opcode;
1207 opcode_entry_type *prev_opcode;
1209 /* Drop leading whitespace. */
1213 /* Find the op code end. */
1214 for (op_start = op_end = str;
1215 *op_end != 0 && *op_end != ' ';
1219 if (op_end == op_start)
1221 as_bad (_("can't find opcode "));
1227 opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start);
1231 as_bad (_("unknown opcode"));
1235 if (opcode->opcode == 250)
1239 char *old = input_line_pointer;
1242 /* Was really a pseudo op. */
1244 input_line_pointer = op_end;
1248 while (*input_line_pointer == ' ')
1249 input_line_pointer++;
1250 p = (pseudo_typeS *) (opcode->func);
1252 (p->poc_handler) (p->poc_val);
1253 input_line_pointer = old;
1258 char *new_input_line_pointer;
1260 new_input_line_pointer = get_operands (opcode, op_end, operand);
1261 if (new_input_line_pointer)
1262 input_line_pointer = new_input_line_pointer;
1263 prev_opcode = opcode; /* XXX is this used ?? */
1265 opcode = get_specific (opcode, operand);
1269 /* Couldn't find an opcode which matched the operands. */
1270 char *where = frag_more (2);
1275 as_bad (_("Can't find opcode to match operands"));
1279 build_bytes (opcode, operand);
1284 tc_crawl_symbol_chain (headers)
1285 object_headers *headers ATTRIBUTE_UNUSED;
1287 printf (_("call to tc_crawl_symbol_chain \n"));
1290 /* We have no need to default values of symbols. */
1293 md_undefined_symbol (name)
1294 char *name ATTRIBUTE_UNUSED;
1300 tc_headers_hook (headers)
1301 object_headers *headers ATTRIBUTE_UNUSED;
1303 printf (_("call to tc_headers_hook \n"));
1306 /* Various routines to kill one day. */
1307 /* Equal to MAX_PRECISION in atof-ieee.c. */
1308 #define MAX_LITTLENUMS 6
1310 /* Turn a string in input_line_pointer into a floating point constant
1311 of type TYPE, and store the appropriate bytes in *LITP. The number
1312 of LITTLENUMS emitted is stored in *SIZEP. An error message is
1313 returned, or NULL on OK. */
1316 md_atof (type, litP, sizeP)
1322 LITTLENUM_TYPE words[MAX_LITTLENUMS];
1323 LITTLENUM_TYPE *wordP;
1354 return _("Bad call to MD_ATOF()");
1356 t = atof_ieee (input_line_pointer, type, words);
1358 input_line_pointer = t;
1360 *sizeP = prec * sizeof (LITTLENUM_TYPE);
1361 for (wordP = words; prec--;)
1363 md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
1364 litP += sizeof (LITTLENUM_TYPE);
1369 const char *md_shortopts = "z:";
1371 struct option md_longopts[] =
1373 #define OPTION_RELAX (OPTION_MD_BASE)
1374 {"linkrelax", no_argument, NULL, OPTION_RELAX},
1375 {NULL, no_argument, NULL, 0}
1378 size_t md_longopts_size = sizeof (md_longopts);
1381 md_parse_option (c, arg)
1388 if (!strcmp (arg, "8001"))
1390 else if (!strcmp (arg, "8002"))
1394 as_bad (_("invalid architecture -z%s"), arg);
1397 z8k_target_from_cmdline = 1;
1412 md_show_usage (stream)
1415 fprintf (stream, _("\
1417 -z8001 generate segmented code\n\
1418 -z8002 generate unsegmented code\n\
1419 -linkrelax create linker relaxable code\n"));
1423 md_convert_frag (headers, seg, fragP)
1424 object_headers *headers ATTRIBUTE_UNUSED;
1425 segT seg ATTRIBUTE_UNUSED;
1426 fragS *fragP ATTRIBUTE_UNUSED;
1428 printf (_("call to md_convert_frag\n"));
1433 md_section_align (seg, size)
1437 return ((size + (1 << section_alignment[(int) seg]) - 1)
1438 & (-1 << section_alignment[(int) seg]));
1442 md_apply_fix3 (fixP, valP, segment)
1445 segT segment ATTRIBUTE_UNUSED;
1447 long val = * (long *) valP;
1448 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
1450 switch (fixP->fx_r_type)
1453 buf[0] = (buf[0] & 0xf0) | (val & 0xf);
1457 val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
1459 as_bad (_("cannot branch to odd address"));
1461 if (val > 127 || val < -128)
1462 as_bad (_("relative jump out of range"));
1464 fixP->fx_no_overflow = 1;
1468 val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
1470 as_bad (_("cannot branch to odd address"));
1472 if (val > 0 || val < -128)
1473 as_bad (_("relative jump out of range"));
1474 *buf = (*buf & 0x80) | (val & 0x7f);
1475 fixP->fx_no_overflow = 1;
1479 if (val > 8191 || val < -8192)
1480 as_bad (_("relative call out of range"));
1482 *buf++ = (buf[0] & 0xf0) | ((val >> 8) & 0xf);
1483 *buf++ = val & 0xff;
1491 *buf++ = (val >> 8);
1496 *buf++ = (val >> 24);
1497 *buf++ = (val >> 16);
1498 *buf++ = (val >> 8);
1503 val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
1504 if (val > 32767 || val < -32768)
1505 as_bad (_("relative address out of range"));
1506 *buf++ = (val >> 8);
1508 fixP->fx_no_overflow = 1;
1513 *buf++ = (val >> 16);
1515 *buf++ = (val >> 8);
1521 md_number_to_chars (buf, val, fixP->fx_size);
1525 printf(_("md_apply_fix3: unknown r_type 0x%x\n"), fixP->fx_r_type);
1529 if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
1534 md_estimate_size_before_relax (fragP, segment_type)
1535 register fragS *fragP ATTRIBUTE_UNUSED;
1536 register segT segment_type ATTRIBUTE_UNUSED;
1538 printf (_("call to md_estimate_size_before_relax\n"));
1542 /* Put number into target byte order. */
1545 md_number_to_chars (ptr, use, nbytes)
1550 number_to_chars_bigendian (ptr, use, nbytes);
1554 md_pcrel_from (fixP)
1555 fixS *fixP ATTRIBUTE_UNUSED;
1561 tc_coff_symbol_emit_hook (s)
1562 symbolS *s ATTRIBUTE_UNUSED;
1567 tc_reloc_mangle (fix_ptr, intr, base)
1569 struct internal_reloc *intr;
1573 symbolS *symbol_ptr;
1575 if (fix_ptr->fx_addsy
1576 && fix_ptr->fx_subsy)
1578 symbolS *add = fix_ptr->fx_addsy;
1579 symbolS *sub = fix_ptr->fx_subsy;
1581 if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub))
1582 as_bad (_("Can't subtract symbols in different sections %s %s"),
1583 S_GET_NAME (add), S_GET_NAME (sub));
1586 int diff = S_GET_VALUE (add) - S_GET_VALUE (sub);
1588 fix_ptr->fx_addsy = 0;
1589 fix_ptr->fx_subsy = 0;
1590 fix_ptr->fx_offset += diff;
1593 symbol_ptr = fix_ptr->fx_addsy;
1595 /* If this relocation is attached to a symbol then it's ok
1597 if (fix_ptr->fx_r_type == 0)
1599 /* cons likes to create reloc32's whatever the size of the reloc. */
1600 switch (fix_ptr->fx_size)
1603 intr->r_type = R_IMM16;
1606 intr->r_type = R_IMM8;
1609 intr->r_type = R_IMM32;
1616 intr->r_type = fix_ptr->fx_r_type;
1618 intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
1619 intr->r_offset = fix_ptr->fx_offset;
1622 intr->r_symndx = symbol_ptr->sy_number;
1624 intr->r_symndx = -1;