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
22 /* Written By Steve Chamberlain <sac@cygnus.com>. */
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;
50 machine = bfd_mach_z8001;
56 machine = bfd_mach_z8002;
62 even (int ignore ATTRIBUTE_UNUSED)
65 record_alignment (now_seg, 1);
79 sval (int ignore ATTRIBUTE_UNUSED)
82 if (*input_line_pointer == '\'')
86 c = *input_line_pointer++;
91 c = (tohex (input_line_pointer[0]) << 4)
92 | tohex (input_line_pointer[1]);
93 input_line_pointer += 2;
95 FRAG_APPEND_1_CHAR (c);
96 c = *input_line_pointer++;
98 demand_empty_rest_of_line ();
102 /* This table describes all the machine specific pseudo-ops the assembler
103 has to support. The fields are:
104 pseudo-op name without dot
105 function to call to execute this pseudo-op
106 Integer arg to pass to the function
109 const pseudo_typeS md_pseudo_table[] = {
111 {"data.b" , cons , 1},
112 {"data.w" , cons , 2},
113 {"data.l" , cons , 4},
114 {"form" , listing_psize , 0},
115 {"heading", listing_title , 0},
116 {"import" , s_ignore , 0},
117 {"page" , listing_eject , 0},
118 {"program", s_ignore , 0},
119 {"z8001" , s_segm , 1},
120 {"z8002" , s_segm , 0},
122 {"segm" , s_segm , 1},
123 {"unsegm" , s_segm , 0},
124 {"unseg" , s_segm , 0},
125 {"name" , s_app_file , 0},
126 {"global" , s_globl , 0},
131 {"rsect" , obj_coff_section, 0},
132 {"sect" , obj_coff_section, 0},
133 {"block" , s_space , 0},
138 const char EXP_CHARS[] = "eE";
140 /* Chars that mean this number is a floating point constant.
143 const char FLT_CHARS[] = "rRsSfFdDxXpP";
145 /* Opcode mnemonics. */
146 static struct hash_control *opcode_hash_control;
151 const opcode_entry_type *opcode;
154 opcode_hash_control = hash_new ();
156 for (opcode = z8k_table; opcode->name; opcode++)
158 /* Only enter unique codes into the table. */
159 if (idx != opcode->idx)
160 hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
164 /* Default to z8002. */
165 if (! z8k_target_from_cmdline)
168 /* Insert the pseudo ops, too. */
169 for (idx = 0; md_pseudo_table[idx].poc_name; idx++)
171 opcode_entry_type *fake_opcode;
172 fake_opcode = (opcode_entry_type *) malloc (sizeof (opcode_entry_type));
173 fake_opcode->name = md_pseudo_table[idx].poc_name;
174 fake_opcode->func = (void *) (md_pseudo_table + idx);
175 fake_opcode->opcode = 250;
176 hash_insert (opcode_hash_control, fake_opcode->name, fake_opcode);
186 typedef struct z8k_op {
195 /* Any other register associated with the mode. */
198 /* Any expression. */
202 static expressionS *da_operand;
203 static expressionS *imm_operand;
208 static int the_flags;
209 static int the_interrupt;
212 whatreg (int *reg, char *src)
214 if (ISDIGIT (src[1]))
216 *reg = (src[0] - '0') * 10 + src[1] - '0';
221 *reg = (src[0] - '0');
232 WREG r0,r1,r2,r3,r4,r5,r6,r7,fp,sp
240 /* Try to parse a reg name. Return a pointer to the first character
241 in SRC after the reg name. */
244 parse_reg (char *src, int *mode, unsigned int *reg)
249 if (src[0] == 's' && src[1] == 'p' && (src[2] == 0 || src[2] == ','))
253 *mode = CLASS_REG_LONG;
258 *mode = CLASS_REG_WORD;
267 if (src[2] < '0' || src[2] > '9')
268 return res; /* Assume no register name but a label starting with 'rr'. */
269 *mode = CLASS_REG_LONG;
270 res = whatreg (reg, src + 2);
273 as_bad (_("register rr%d out of range"), regno);
275 as_bad (_("register rr%d does not exist"), regno);
277 else if (src[1] == 'h')
279 if (src[2] < '0' || src[2] > '9')
280 return res; /* Assume no register name but a label starting with 'rh'. */
281 *mode = CLASS_REG_BYTE;
282 res = whatreg (reg, src + 2);
285 as_bad (_("register rh%d out of range"), regno);
287 else if (src[1] == 'l')
289 if (src[2] < '0' || src[2] > '9')
290 return res; /* Assume no register name but a label starting with 'rl'. */
291 *mode = CLASS_REG_BYTE;
292 res = whatreg (reg, src + 2);
295 as_bad (_("register rl%d out of range"), regno);
298 else if (src[1] == 'q')
300 if (src[2] < '0' || src[2] > '9')
301 return res; /* Assume no register name but a label starting with 'rq'. */
302 *mode = CLASS_REG_QUAD;
303 res = whatreg (reg, src + 2);
306 as_bad (_("register rq%d out of range"), regno);
308 as_bad (_("register rq%d does not exist"), regno);
312 if (src[1] < '0' || src[1] > '9')
313 return res; /* Assume no register name but a label starting with 'r'. */
314 *mode = CLASS_REG_WORD;
315 res = whatreg (reg, src + 1);
318 as_bad (_("register r%d out of range"), regno);
325 parse_exp (char *s, expressionS *op)
327 char *save = input_line_pointer;
330 input_line_pointer = s;
332 if (op->X_op == O_absent)
333 as_bad (_("missing operand"));
334 new = input_line_pointer;
335 input_line_pointer = save;
339 /* The many forms of operand:
354 checkfor (char *ptr, char what)
359 as_bad (_("expected %c"), what);
364 /* Make sure the mode supplied is the size of a word. */
367 regword (int mode, char *string)
374 as_bad (_("register is wrong size for a word %s"), string);
378 /* Make sure the mode supplied is the size of an address. */
381 regaddr (int mode, char *string)
385 ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD;
388 as_bad (_("register is wrong size for address %s"), string);
397 static struct ctrl_names ctrl_table[] = {
410 get_ctrl_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
418 mode->mode = CLASS_CTRL;
419 for (i = 0; ctrl_table[i].name; i++)
423 for (j = 0; ctrl_table[i].name[j]; j++)
425 if (ctrl_table[i].name[j] != src[j])
428 the_ctrl = ctrl_table[i].value;
443 static struct flag_names flag_table[] = {
454 get_flags_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
463 mode->mode = CLASS_FLAGS;
465 for (j = 0; j <= 9; j++)
469 for (i = 0; flag_table[i].name; i++)
471 if (flag_table[i].name[0] == src[j])
473 the_flags = the_flags | flag_table[i].value;
486 struct interrupt_names {
491 static struct interrupt_names intr_table[] = {
500 get_interrupt_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
508 mode->mode = CLASS_IMM;
509 for (i = 0; intr_table[i].name; i++)
513 for (j = 0; intr_table[i].name[j]; j++)
515 if (intr_table[i].name[j] != src[j])
518 the_interrupt = intr_table[i].value;
524 /* No interrupt type specified, opcode won't do anything. */
525 as_warn (_("opcode has no effect"));
535 static struct cc_names table[] = {
570 get_cc_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
578 mode->mode = CLASS_CC;
579 for (i = 0; table[i].name; i++)
581 l = strlen (table[i].name);
582 if (! strncasecmp (table[i].name, src, l))
584 the_cc = table[i].value;
585 if (*(src + l) && *(src + l) != ',')
587 *ptr = src + l; /* Valid cc found: "consume" it. */
591 the_cc = 0x8; /* Not recognizing the cc defaults to t. (Assuming no cc present.) */
595 get_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
606 mode->mode = CLASS_IMM;
607 imm_operand = &(mode->exp);
608 src = parse_exp (src + 1, &(mode->exp));
610 else if (*src == '@')
612 mode->mode = CLASS_IR;
613 src = parse_reg (src + 1, &mode->regsize, &mode->reg);
619 end = parse_reg (src, &mode->mode, ®n);
629 end = parse_reg (src, &nw, &nr);
636 as_bad (_("Missing ) in ra(rb)"));
640 regaddr (mode->mode, "ra(rb) ra");
642 regword (mode->mode, "ra(rb) rb");
644 mode->mode = CLASS_BX;
654 src = parse_exp (src, &(mode->exp));
655 src = checkfor (src, ')');
656 mode->mode = CLASS_BA;
659 imm_operand = &(mode->exp);
670 /* No initial reg. */
671 src = parse_exp (src, &(mode->exp));
675 end = parse_reg (src, &(mode->mode), ®n);
676 regword (mode->mode, "addr(Ra) ra");
677 mode->mode = CLASS_X;
680 da_operand = &(mode->exp);
681 src = checkfor (end, ')');
685 /* Just an address. */
686 mode->mode = CLASS_DA;
689 da_operand = &(mode->exp);
697 get_operands (const opcode_entry_type *opcode, char *op_end, op_type *operand)
702 switch (opcode->noperands)
712 if (opcode->arg_info[0] == CLASS_CC)
714 get_cc_operand (&ptr, operand + 0, 0);
717 if (*ptr && ! is_end_of_line[(unsigned char) *ptr])
719 as_bad (_("invalid condition code '%s'"), ptr);
720 while (*ptr && ! is_end_of_line[(unsigned char) *ptr])
721 ptr++; /* Consume rest of line. */
725 else if (opcode->arg_info[0] == CLASS_FLAGS)
726 get_flags_operand (&ptr, operand + 0, 0);
728 else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2)))
729 get_interrupt_operand (&ptr, operand + 0, 0);
732 get_operand (&ptr, operand + 0, 0);
739 if (opcode->arg_info[0] == CLASS_CC)
741 get_cc_operand (&ptr, operand + 0, 0);
744 if (*ptr != ',' && strchr (ptr + 1, ','))
751 as_bad (_("invalid condition code '%s'"), savptr);
755 else if (opcode->arg_info[0] == CLASS_CTRL)
757 get_ctrl_operand (&ptr, operand + 0, 0);
762 get_operand (&ptr, operand + 0, 0);
768 get_ctrl_operand (&ptr, operand + 1, 1);
773 get_operand (&ptr, operand + 0, 0);
779 get_operand (&ptr, operand + 1, 1);
783 get_operand (&ptr, operand + 0, 0);
786 get_operand (&ptr, operand + 1, 1);
789 get_operand (&ptr, operand + 2, 2);
793 get_operand (&ptr, operand + 0, 0);
796 get_operand (&ptr, operand + 1, 1);
799 get_operand (&ptr, operand + 2, 2);
802 get_cc_operand (&ptr, operand + 3, 3);
812 /* Passed a pointer to a list of opcodes which use different
813 addressing modes. Return the opcode which matches the opcodes
816 static opcode_entry_type *
817 get_specific (opcode_entry_type *opcode, op_type *operands)
819 opcode_entry_type *this_try = opcode;
821 unsigned int noperands = opcode->noperands;
823 int this_index = opcode->idx;
825 while (this_index == opcode->idx && !found)
830 for (i = 0; i < noperands; i++)
832 unsigned int mode = operands[i].mode;
834 if (((mode & CLASS_MASK) == CLASS_IR) && ((this_try->arg_info[i] & CLASS_MASK) == CLASS_IRO))
836 mode = operands[i].mode = (operands[i].mode & ~CLASS_MASK) | CLASS_IRO;
839 if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK))
841 /* It could be a pc rel operand, if this is a da mode
842 and we like disps, then insert it. */
844 if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP)
846 /* This is the case. */
847 operands[i].mode = CLASS_DISP;
849 else if (mode == CLASS_BA && this_try->arg_info[i])
851 /* Can't think of a way to turn what we've been
852 given into something that's OK. */
855 else if (this_try->arg_info[i] & CLASS_PR)
857 if (mode == CLASS_REG_LONG && segmented_mode)
861 else if (mode == CLASS_REG_WORD && !segmented_mode)
871 switch (mode & CLASS_MASK)
876 if (operands[i].regsize != CLASS_REG_WORD)
877 as_bad (_("invalid indirect register size"));
878 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
881 if ((segmented_mode && operands[i].regsize != CLASS_REG_LONG)
882 || (!segmented_mode && operands[i].regsize != CLASS_REG_WORD))
883 as_bad (_("invalid indirect register size"));
884 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
896 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
911 static char buffer[20];
914 newfix (int ptr, int type, int size, expressionS *operand)
918 /* size is in nibbles. */
920 if (operand->X_add_symbol
921 || operand->X_op_symbol
922 || operand->X_add_number)
931 fix_new_exp (frag_now,
941 apply_fix (char *ptr, int type, expressionS *operand, int size)
943 long n = operand->X_add_number;
945 /* size is in nibbles. */
947 newfix ((ptr - buffer) / 2, type, size + 1, operand);
950 case 8: /* 8 nibbles == 32 bits. */
955 case 4: /* 4 nibbles == 16 bits. */
967 /* Now we know what sort of opcodes it is. Let's build the bytes. */
969 #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y;
972 build_bytes (opcode_entry_type *this_try, struct z8k_op *operand ATTRIBUTE_UNUSED)
974 char *output_ptr = buffer;
977 unsigned int *class_ptr;
979 frag_wane (frag_now);
982 memset (buffer, 0, sizeof (buffer));
983 class_ptr = this_try->byte_info;
985 for (nibble = 0; (c = *class_ptr++); nibble++)
988 switch (c & CLASS_MASK)
994 /* Direct address, we don't cope with the SS mode right now. */
997 /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */
998 output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8);
1002 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1008 output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2);
1015 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1022 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1023 output_ptr[-2] = 0x8;
1027 case CLASS_BIT_1OR2:
1028 *output_ptr = c & 0xf;
1031 if (imm_operand->X_add_number == 2)
1033 else if (imm_operand->X_add_number != 1)
1034 as_bad (_("immediate must be 1 or 2"));
1037 as_bad (_("immediate 1 or 2 expected"));
1041 *output_ptr++ = the_cc;
1044 *output_ptr++ = the_ctrl;
1047 *output_ptr++ = the_ctrl | 0x8;
1050 *output_ptr++ = (~the_interrupt & 0x3);
1053 *output_ptr++ = (~the_interrupt & 0x3) | 0x4;
1056 *output_ptr++ = the_flags;
1060 *output_ptr++ = c & 0xf;
1063 if (reg[c & 0xf] == 0)
1064 as_bad (_("can't use R0 here"));
1067 case CLASS_REG_BYTE:
1068 case CLASS_REG_WORD:
1069 case CLASS_REG_LONG:
1070 case CLASS_REG_QUAD:
1071 /* Insert bit mattern of right reg. */
1072 *output_ptr++ = reg[c & 0xf];
1075 switch (c & ARG_MASK)
1078 output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4);
1081 output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4);
1084 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1091 switch (c & ARG_MASK)
1094 if (imm_operand->X_add_number > 15)
1096 as_bad (_("immediate value out of range"));
1098 imm_operand->X_add_number = -imm_operand->X_add_number;
1099 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1101 /*case ARG_IMMNMINUS1: not used. */
1103 imm_operand->X_add_number--;
1106 if (imm_operand->X_add_number > 15)
1108 as_bad (_("immediate value out of range"));
1110 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1113 imm_operand->X_add_number = -imm_operand->X_add_number;
1116 output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2);
1119 output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4);
1122 output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8);
1131 /* Copy from the nibble buffer into the frag. */
1133 int length = (output_ptr - buffer) / 2;
1135 char *fragp = frag_more (length);
1137 while (src < output_ptr)
1139 *fragp = (src[0] << 4) | src[1];
1146 /* This is the guts of the machine-dependent assembler. STR points to a
1147 machine dependent instruction. This function is supposed to emit
1148 the frags/bytes it assembles to. */
1151 md_assemble (char *str)
1156 struct z8k_op operand[3];
1157 opcode_entry_type *opcode;
1159 /* Drop leading whitespace. */
1163 /* Find the op code end. */
1164 for (op_start = op_end = str;
1165 *op_end != 0 && *op_end != ' ' && ! is_end_of_line[(unsigned char) *op_end];
1169 if (op_end == op_start)
1171 as_bad (_("can't find opcode "));
1175 *op_end = 0; /* Zero-terminate op code string for hash_find() call. */
1177 opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start);
1181 as_bad (_("unknown opcode"));
1185 *op_end = c; /* Restore original string. */
1187 if (opcode->opcode == 250)
1191 char *old = input_line_pointer;
1193 /* Was really a pseudo op. */
1195 input_line_pointer = op_end;
1199 while (*input_line_pointer == ' ')
1200 input_line_pointer++;
1201 p = (pseudo_typeS *) (opcode->func);
1203 (p->poc_handler) (p->poc_val);
1204 input_line_pointer = old;
1209 char *new_input_line_pointer;
1211 new_input_line_pointer = get_operands (opcode, op_end, operand);
1212 if (new_input_line_pointer)
1213 input_line_pointer = new_input_line_pointer;
1215 opcode = get_specific (opcode, operand);
1219 /* Couldn't find an opcode which matched the operands. */
1220 char *where = frag_more (2);
1225 as_bad (_("Can't find opcode to match operands"));
1229 build_bytes (opcode, operand);
1234 tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED)
1236 printf (_("call to tc_crawl_symbol_chain \n"));
1239 /* We have no need to default values of symbols. */
1242 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
1248 tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED)
1250 printf (_("call to tc_headers_hook \n"));
1253 /* Various routines to kill one day. */
1254 /* Equal to MAX_PRECISION in atof-ieee.c. */
1255 #define MAX_LITTLENUMS 6
1257 /* Turn a string in input_line_pointer into a floating point constant
1258 of type TYPE, and store the appropriate bytes in *LITP. The number
1259 of LITTLENUMS emitted is stored in *SIZEP. An error message is
1260 returned, or NULL on OK. */
1263 md_atof (int type, char *litP, int *sizeP)
1266 LITTLENUM_TYPE words[MAX_LITTLENUMS];
1267 LITTLENUM_TYPE *wordP;
1298 return _("Bad call to MD_ATOF()");
1300 t = atof_ieee (input_line_pointer, type, words);
1302 input_line_pointer = t;
1304 *sizeP = prec * sizeof (LITTLENUM_TYPE);
1305 for (wordP = words; prec--;)
1307 md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
1308 litP += sizeof (LITTLENUM_TYPE);
1313 const char *md_shortopts = "z:";
1315 struct option md_longopts[] =
1317 #define OPTION_RELAX (OPTION_MD_BASE)
1318 {"linkrelax", no_argument, NULL, OPTION_RELAX},
1319 {NULL, no_argument, NULL, 0}
1322 size_t md_longopts_size = sizeof (md_longopts);
1325 md_parse_option (int c, char *arg)
1330 if (!strcmp (arg, "8001"))
1332 else if (!strcmp (arg, "8002"))
1336 as_bad (_("invalid architecture -z%s"), arg);
1339 z8k_target_from_cmdline = 1;
1354 md_show_usage (FILE *stream)
1356 fprintf (stream, _("\
1358 -z8001 generate segmented code\n\
1359 -z8002 generate unsegmented code\n\
1360 -linkrelax create linker relaxable code\n"));
1364 md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED,
1365 segT seg ATTRIBUTE_UNUSED,
1366 fragS *fragP ATTRIBUTE_UNUSED)
1368 printf (_("call to md_convert_frag\n"));
1373 md_section_align (segT seg, valueT size)
1375 return ((size + (1 << section_alignment[(int) seg]) - 1)
1376 & (-1 << section_alignment[(int) seg]));
1379 /* Attempt to simplify or eliminate a fixup. To indicate that a fixup
1380 has been eliminated, set fix->fx_done. If fix->fx_addsy is non-NULL,
1381 we will have to generate a reloc entry. */
1383 md_apply_fix3 (fixS *fixP, valueT *valP, segT segment ATTRIBUTE_UNUSED)
1385 long val = * (long *) valP;
1386 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
1388 switch (fixP->fx_r_type)
1391 buf[0] = (buf[0] & 0xf0) | (val & 0xf);
1397 fixP->fx_no_overflow = 1;
1403 as_bad (_("cannot branch to odd address"));
1405 if (val > 127 || val < -128)
1406 as_warn (_("relative jump out of range"));
1408 fixP->fx_no_overflow = 1;
1416 fixP->fx_no_overflow = 1;
1422 as_bad (_("cannot branch to odd address"));
1424 if (val > 0 || val < -127)
1425 as_bad (_("relative jump out of range"));
1426 *buf = (*buf & 0x80) | (-val & 0x7f);
1427 fixP->fx_no_overflow = 1;
1435 fixP->fx_no_overflow = 1;
1441 as_bad (_("cannot branch to odd address"));
1442 if (val > 4096 || val < -4095)
1443 as_bad (_("relative call out of range"));
1445 *buf = (*buf & 0xf0) | ((val >> 8) & 0xf);
1447 *buf++ = val & 0xff;
1448 fixP->fx_no_overflow = 1;
1458 *buf++ = (val >> 8);
1463 *buf++ = (val >> 24);
1464 *buf++ = (val >> 16);
1465 *buf++ = (val >> 8);
1470 val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
1471 if (val > 32767 || val < -32768)
1472 as_bad (_("relative address out of range"));
1473 *buf++ = (val >> 8);
1475 fixP->fx_no_overflow = 1;
1480 *buf++ = (val >> 16);
1482 *buf++ = (val >> 8);
1488 md_number_to_chars (buf, val, fixP->fx_size);
1492 printf(_("md_apply_fix3: unknown r_type 0x%x\n"), fixP->fx_r_type);
1496 if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
1501 md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED,
1502 segT segment_type ATTRIBUTE_UNUSED)
1504 printf (_("call to md_estimate_size_before_relax\n"));
1508 /* Put number into target byte order. */
1511 md_number_to_chars (char *ptr, valueT use, int nbytes)
1513 number_to_chars_bigendian (ptr, use, nbytes);
1516 /* On the Z8000, a PC-relative offset is relative to the address of the
1517 instruction plus its size. */
1519 md_pcrel_from (fixS *fixP)
1521 return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
1525 tc_coff_symbol_emit_hook (symbolS *s ATTRIBUTE_UNUSED)
1530 tc_reloc_mangle (fixS *fix_ptr, struct internal_reloc *intr, bfd_vma base)
1532 symbolS *symbol_ptr;
1534 if (fix_ptr->fx_addsy
1535 && fix_ptr->fx_subsy)
1537 symbolS *add = fix_ptr->fx_addsy;
1538 symbolS *sub = fix_ptr->fx_subsy;
1540 if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub))
1541 as_bad (_("Can't subtract symbols in different sections %s %s"),
1542 S_GET_NAME (add), S_GET_NAME (sub));
1545 int diff = S_GET_VALUE (add) - S_GET_VALUE (sub);
1547 fix_ptr->fx_addsy = 0;
1548 fix_ptr->fx_subsy = 0;
1549 fix_ptr->fx_offset += diff;
1552 symbol_ptr = fix_ptr->fx_addsy;
1554 /* If this relocation is attached to a symbol then it's ok
1556 if (fix_ptr->fx_r_type == 0)
1558 /* cons likes to create reloc32's whatever the size of the reloc. */
1559 switch (fix_ptr->fx_size)
1562 intr->r_type = R_IMM16;
1565 intr->r_type = R_IMM8;
1568 intr->r_type = R_IMM32;
1575 intr->r_type = fix_ptr->fx_r_type;
1577 intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
1578 intr->r_offset = fix_ptr->fx_offset;
1581 intr->r_symndx = symbol_ptr->sy_number;
1583 intr->r_symndx = -1;