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 /* Check for stack pointer "sp" alias. */
250 if ((src[0] == 's' || src[0] == 'S')
251 && (src[1] == 'p' || src[1] == 'P')
252 && (src[2] == 0 || src[2] == ','))
256 *mode = CLASS_REG_LONG;
261 *mode = CLASS_REG_WORD;
267 if (src[0] == 'r' || src[0] == 'R')
269 if (src[1] == 'r' || src[1] == 'R')
271 if (src[2] < '0' || src[2] > '9')
272 return res; /* Assume no register name but a label starting with 'rr'. */
273 *mode = CLASS_REG_LONG;
274 res = whatreg (reg, src + 2);
277 as_bad (_("register rr%d out of range"), regno);
279 as_bad (_("register rr%d does not exist"), regno);
281 else if (src[1] == 'h' || src[1] == 'H')
283 if (src[2] < '0' || src[2] > '9')
284 return res; /* Assume no register name but a label starting with 'rh'. */
285 *mode = CLASS_REG_BYTE;
286 res = whatreg (reg, src + 2);
289 as_bad (_("register rh%d out of range"), regno);
291 else if (src[1] == 'l' || src[1] == 'L')
293 if (src[2] < '0' || src[2] > '9')
294 return res; /* Assume no register name but a label starting with 'rl'. */
295 *mode = CLASS_REG_BYTE;
296 res = whatreg (reg, src + 2);
299 as_bad (_("register rl%d out of range"), regno);
302 else if (src[1] == 'q' || src[1] == 'Q')
304 if (src[2] < '0' || src[2] > '9')
305 return res; /* Assume no register name but a label starting with 'rq'. */
306 *mode = CLASS_REG_QUAD;
307 res = whatreg (reg, src + 2);
310 as_bad (_("register rq%d out of range"), regno);
312 as_bad (_("register rq%d does not exist"), regno);
316 if (src[1] < '0' || src[1] > '9')
317 return res; /* Assume no register name but a label starting with 'r'. */
318 *mode = CLASS_REG_WORD;
319 res = whatreg (reg, src + 1);
322 as_bad (_("register r%d out of range"), regno);
329 parse_exp (char *s, expressionS *op)
331 char *save = input_line_pointer;
334 input_line_pointer = s;
336 if (op->X_op == O_absent)
337 as_bad (_("missing operand"));
338 new = input_line_pointer;
339 input_line_pointer = save;
343 /* The many forms of operand:
358 checkfor (char *ptr, char what)
363 as_bad (_("expected %c"), what);
368 /* Make sure the mode supplied is the size of a word. */
371 regword (int mode, char *string)
378 as_bad (_("register is wrong size for a word %s"), string);
382 /* Make sure the mode supplied is the size of an address. */
385 regaddr (int mode, char *string)
389 ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD;
392 as_bad (_("register is wrong size for address %s"), string);
401 static struct ctrl_names ctrl_table[] = {
414 get_ctrl_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
422 mode->mode = CLASS_CTRL;
423 for (i = 0; ctrl_table[i].name; i++)
425 l = strlen (ctrl_table[i].name);
426 if (! strncasecmp (ctrl_table[i].name, src, l))
428 the_ctrl = ctrl_table[i].value;
429 if (*(src + l) && *(src + l) != ',')
431 *ptr = src + l; /* Valid control name found: "consume" it. */
444 static struct flag_names flag_table[] = {
455 get_flags_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
464 mode->mode = CLASS_FLAGS;
466 for (j = 0; j <= 9; j++)
470 for (i = 0; flag_table[i].name; i++)
472 if (flag_table[i].name[0] == src[j])
474 the_flags = the_flags | flag_table[i].value;
487 struct interrupt_names {
492 static struct interrupt_names intr_table[] = {
501 get_interrupt_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
509 mode->mode = CLASS_IMM;
510 for (i = 0; intr_table[i].name; i++)
514 for (j = 0; intr_table[i].name[j]; j++)
516 if (intr_table[i].name[j] != src[j])
519 the_interrupt = intr_table[i].value;
525 /* No interrupt type specified, opcode won't do anything. */
526 as_warn (_("opcode has no effect"));
536 static struct cc_names table[] = {
571 get_cc_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
579 mode->mode = CLASS_CC;
580 for (i = 0; table[i].name; i++)
582 l = strlen (table[i].name);
583 if (! strncasecmp (table[i].name, src, l))
585 the_cc = table[i].value;
586 if (*(src + l) && *(src + l) != ',')
588 *ptr = src + l; /* Valid cc found: "consume" it. */
592 the_cc = 0x8; /* Not recognizing the cc defaults to t. (Assuming no cc present.) */
596 get_operand (char **ptr, struct z8k_op *mode, unsigned int dst ATTRIBUTE_UNUSED)
607 mode->mode = CLASS_IMM;
608 imm_operand = &(mode->exp);
609 src = parse_exp (src + 1, &(mode->exp));
611 else if (*src == '@')
613 mode->mode = CLASS_IR;
614 src = parse_reg (src + 1, &mode->regsize, &mode->reg);
620 end = parse_reg (src, &mode->mode, ®n);
630 end = parse_reg (src, &nw, &nr);
637 as_bad (_("Missing ) in ra(rb)"));
641 regaddr (mode->mode, "ra(rb) ra");
643 regword (mode->mode, "ra(rb) rb");
645 mode->mode = CLASS_BX;
655 src = parse_exp (src, &(mode->exp));
656 src = checkfor (src, ')');
657 mode->mode = CLASS_BA;
660 imm_operand = &(mode->exp);
671 /* No initial reg. */
672 src = parse_exp (src, &(mode->exp));
676 end = parse_reg (src, &(mode->mode), ®n);
677 regword (mode->mode, "addr(Ra) ra");
678 mode->mode = CLASS_X;
681 da_operand = &(mode->exp);
682 src = checkfor (end, ')');
686 /* Just an address. */
687 mode->mode = CLASS_DA;
690 da_operand = &(mode->exp);
698 get_operands (const opcode_entry_type *opcode, char *op_end, op_type *operand)
703 switch (opcode->noperands)
713 if (opcode->arg_info[0] == CLASS_CC)
715 get_cc_operand (&ptr, operand + 0, 0);
718 if (*ptr && ! is_end_of_line[(unsigned char) *ptr])
720 as_bad (_("invalid condition code '%s'"), ptr);
721 while (*ptr && ! is_end_of_line[(unsigned char) *ptr])
722 ptr++; /* Consume rest of line. */
725 else if (opcode->arg_info[0] == CLASS_FLAGS)
726 get_flags_operand (&ptr, operand + 0, 0);
727 else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2)))
728 get_interrupt_operand (&ptr, operand + 0, 0);
730 get_operand (&ptr, operand + 0, 0);
737 if (opcode->arg_info[0] == CLASS_CC)
739 get_cc_operand (&ptr, operand + 0, 0);
742 if (*ptr != ',' && strchr (ptr + 1, ','))
749 as_bad (_("invalid condition code '%s'"), savptr);
752 else if (opcode->arg_info[0] == CLASS_CTRL)
754 get_ctrl_operand (&ptr, operand + 0, 0);
759 get_operand (&ptr, operand + 0, 0);
765 get_ctrl_operand (&ptr, operand + 1, 1);
770 get_operand (&ptr, operand + 0, 0);
776 get_operand (&ptr, operand + 1, 1);
780 get_operand (&ptr, operand + 0, 0);
783 get_operand (&ptr, operand + 1, 1);
786 get_operand (&ptr, operand + 2, 2);
790 get_operand (&ptr, operand + 0, 0);
793 get_operand (&ptr, operand + 1, 1);
796 get_operand (&ptr, operand + 2, 2);
799 get_cc_operand (&ptr, operand + 3, 3);
809 /* Passed a pointer to a list of opcodes which use different
810 addressing modes. Return the opcode which matches the opcodes
813 static opcode_entry_type *
814 get_specific (opcode_entry_type *opcode, op_type *operands)
816 opcode_entry_type *this_try = opcode;
818 unsigned int noperands = opcode->noperands;
820 int this_index = opcode->idx;
822 while (this_index == opcode->idx && !found)
827 for (i = 0; i < noperands; i++)
829 unsigned int mode = operands[i].mode;
831 if (((mode & CLASS_MASK) == CLASS_IR) && ((this_try->arg_info[i] & CLASS_MASK) == CLASS_IRO))
833 mode = operands[i].mode = (operands[i].mode & ~CLASS_MASK) | CLASS_IRO;
836 if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK))
838 /* It could be a pc rel operand, if this is a da mode
839 and we like disps, then insert it. */
841 if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP)
843 /* This is the case. */
844 operands[i].mode = CLASS_DISP;
846 else if (mode == CLASS_BA && this_try->arg_info[i])
848 /* Can't think of a way to turn what we've been
849 given into something that's OK. */
852 else if (this_try->arg_info[i] & CLASS_PR)
854 if (mode == CLASS_REG_LONG && segmented_mode)
858 else if (mode == CLASS_REG_WORD && !segmented_mode)
868 switch (mode & CLASS_MASK)
873 if (operands[i].regsize != CLASS_REG_WORD)
874 as_bad (_("invalid indirect register size"));
875 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
878 if ((segmented_mode && operands[i].regsize != CLASS_REG_LONG)
879 || (!segmented_mode && operands[i].regsize != CLASS_REG_WORD))
880 as_bad (_("invalid indirect register size"));
881 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
893 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
908 static char buffer[20];
911 newfix (int ptr, int type, int size, expressionS *operand)
915 /* size is in nibbles. */
917 if (operand->X_add_symbol
918 || operand->X_op_symbol
919 || operand->X_add_number)
928 fix_new_exp (frag_now,
938 apply_fix (char *ptr, int type, expressionS *operand, int size)
940 long n = operand->X_add_number;
942 /* size is in nibbles. */
944 newfix ((ptr - buffer) / 2, type, size + 1, operand);
947 case 8: /* 8 nibbles == 32 bits. */
952 case 4: /* 4 nibbles == 16 bits. */
964 /* Now we know what sort of opcodes it is. Let's build the bytes. */
966 #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y;
969 build_bytes (opcode_entry_type *this_try, struct z8k_op *operand ATTRIBUTE_UNUSED)
971 char *output_ptr = buffer;
974 unsigned int *class_ptr;
976 frag_wane (frag_now);
979 memset (buffer, 0, sizeof (buffer));
980 class_ptr = this_try->byte_info;
982 for (nibble = 0; (c = *class_ptr++); nibble++)
985 switch (c & CLASS_MASK)
991 /* Direct address, we don't cope with the SS mode right now. */
994 /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */
995 output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8);
999 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1005 output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2);
1012 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1019 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1020 output_ptr[-2] = 0x8;
1024 case CLASS_BIT_1OR2:
1025 *output_ptr = c & 0xf;
1028 if (imm_operand->X_add_number == 2)
1030 else if (imm_operand->X_add_number != 1)
1031 as_bad (_("immediate must be 1 or 2"));
1034 as_bad (_("immediate 1 or 2 expected"));
1038 *output_ptr++ = the_cc;
1041 *output_ptr++ = the_ctrl;
1044 *output_ptr++ = the_ctrl | 0x8;
1047 *output_ptr++ = (~the_interrupt & 0x3);
1050 *output_ptr++ = (~the_interrupt & 0x3) | 0x4;
1053 *output_ptr++ = the_flags;
1057 *output_ptr++ = c & 0xf;
1060 if (reg[c & 0xf] == 0)
1061 as_bad (_("can't use R0 here"));
1064 case CLASS_REG_BYTE:
1065 case CLASS_REG_WORD:
1066 case CLASS_REG_LONG:
1067 case CLASS_REG_QUAD:
1068 /* Insert bit mattern of right reg. */
1069 *output_ptr++ = reg[c & 0xf];
1072 switch (c & ARG_MASK)
1075 output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4);
1078 output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4);
1081 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1088 switch (c & ARG_MASK)
1091 if (imm_operand->X_add_number > 15)
1093 as_bad (_("immediate value out of range"));
1095 imm_operand->X_add_number = -imm_operand->X_add_number;
1096 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1098 /*case ARG_IMMNMINUS1: not used. */
1100 imm_operand->X_add_number--;
1103 if (imm_operand->X_add_number > 15)
1105 as_bad (_("immediate value out of range"));
1107 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1110 imm_operand->X_add_number = -imm_operand->X_add_number;
1113 output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2);
1116 output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4);
1119 output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8);
1128 /* Copy from the nibble buffer into the frag. */
1130 int length = (output_ptr - buffer) / 2;
1132 char *fragp = frag_more (length);
1134 while (src < output_ptr)
1136 *fragp = (src[0] << 4) | src[1];
1143 /* This is the guts of the machine-dependent assembler. STR points to a
1144 machine dependent instruction. This function is supposed to emit
1145 the frags/bytes it assembles to. */
1148 md_assemble (char *str)
1153 struct z8k_op operand[3];
1154 opcode_entry_type *opcode;
1156 /* Drop leading whitespace. */
1160 /* Find the op code end. */
1161 for (op_start = op_end = str;
1162 *op_end != 0 && *op_end != ' ' && ! is_end_of_line[(unsigned char) *op_end];
1166 if (op_end == op_start)
1168 as_bad (_("can't find opcode "));
1172 *op_end = 0; /* Zero-terminate op code string for hash_find() call. */
1174 opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start);
1178 as_bad (_("unknown opcode"));
1182 *op_end = c; /* Restore original string. */
1184 if (opcode->opcode == 250)
1188 char *old = input_line_pointer;
1190 /* Was really a pseudo op. */
1192 input_line_pointer = op_end;
1196 while (*input_line_pointer == ' ')
1197 input_line_pointer++;
1198 p = (pseudo_typeS *) (opcode->func);
1200 (p->poc_handler) (p->poc_val);
1201 input_line_pointer = old;
1206 char *new_input_line_pointer;
1208 new_input_line_pointer = get_operands (opcode, op_end, operand);
1209 if (new_input_line_pointer)
1210 input_line_pointer = new_input_line_pointer;
1212 opcode = get_specific (opcode, operand);
1216 /* Couldn't find an opcode which matched the operands. */
1217 char *where = frag_more (2);
1222 as_bad (_("Can't find opcode to match operands"));
1226 build_bytes (opcode, operand);
1231 tc_crawl_symbol_chain (object_headers *headers ATTRIBUTE_UNUSED)
1233 printf (_("call to tc_crawl_symbol_chain \n"));
1236 /* We have no need to default values of symbols. */
1239 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
1245 tc_headers_hook (object_headers *headers ATTRIBUTE_UNUSED)
1247 printf (_("call to tc_headers_hook \n"));
1250 /* Various routines to kill one day. */
1251 /* Equal to MAX_PRECISION in atof-ieee.c. */
1252 #define MAX_LITTLENUMS 6
1254 /* Turn a string in input_line_pointer into a floating point constant
1255 of type TYPE, and store the appropriate bytes in *LITP. The number
1256 of LITTLENUMS emitted is stored in *SIZEP. An error message is
1257 returned, or NULL on OK. */
1260 md_atof (int type, char *litP, int *sizeP)
1263 LITTLENUM_TYPE words[MAX_LITTLENUMS];
1264 LITTLENUM_TYPE *wordP;
1295 return _("Bad call to MD_ATOF()");
1297 t = atof_ieee (input_line_pointer, type, words);
1299 input_line_pointer = t;
1301 *sizeP = prec * sizeof (LITTLENUM_TYPE);
1302 for (wordP = words; prec--;)
1304 md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
1305 litP += sizeof (LITTLENUM_TYPE);
1310 const char *md_shortopts = "z:";
1312 struct option md_longopts[] =
1314 #define OPTION_RELAX (OPTION_MD_BASE)
1315 {"linkrelax", no_argument, NULL, OPTION_RELAX},
1316 {NULL, no_argument, NULL, 0}
1319 size_t md_longopts_size = sizeof (md_longopts);
1322 md_parse_option (int c, char *arg)
1327 if (!strcmp (arg, "8001"))
1329 else if (!strcmp (arg, "8002"))
1333 as_bad (_("invalid architecture -z%s"), arg);
1336 z8k_target_from_cmdline = 1;
1351 md_show_usage (FILE *stream)
1353 fprintf (stream, _("\
1355 -z8001 generate segmented code\n\
1356 -z8002 generate unsegmented code\n\
1357 -linkrelax create linker relaxable code\n"));
1361 md_convert_frag (object_headers *headers ATTRIBUTE_UNUSED,
1362 segT seg ATTRIBUTE_UNUSED,
1363 fragS *fragP ATTRIBUTE_UNUSED)
1365 printf (_("call to md_convert_frag\n"));
1370 md_section_align (segT seg, valueT size)
1372 return ((size + (1 << section_alignment[(int) seg]) - 1)
1373 & (-1 << section_alignment[(int) seg]));
1376 /* Attempt to simplify or eliminate a fixup. To indicate that a fixup
1377 has been eliminated, set fix->fx_done. If fix->fx_addsy is non-NULL,
1378 we will have to generate a reloc entry. */
1380 md_apply_fix3 (fixS *fixP, valueT *valP, segT segment ATTRIBUTE_UNUSED)
1382 long val = * (long *) valP;
1383 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
1385 switch (fixP->fx_r_type)
1388 buf[0] = (buf[0] & 0xf0) | (val & 0xf);
1394 fixP->fx_no_overflow = 1;
1400 as_bad (_("cannot branch to odd address"));
1402 if (val > 127 || val < -128)
1403 as_warn (_("relative jump out of range"));
1405 fixP->fx_no_overflow = 1;
1413 fixP->fx_no_overflow = 1;
1419 as_bad (_("cannot branch to odd address"));
1421 if (val > 0 || val < -127)
1422 as_bad (_("relative jump out of range"));
1423 *buf = (*buf & 0x80) | (-val & 0x7f);
1424 fixP->fx_no_overflow = 1;
1432 fixP->fx_no_overflow = 1;
1438 as_bad (_("cannot branch to odd address"));
1439 if (val > 4096 || val < -4095)
1440 as_bad (_("relative call out of range"));
1442 *buf = (*buf & 0xf0) | ((val >> 8) & 0xf);
1444 *buf++ = val & 0xff;
1445 fixP->fx_no_overflow = 1;
1455 *buf++ = (val >> 8);
1460 *buf++ = (val >> 24);
1461 *buf++ = (val >> 16);
1462 *buf++ = (val >> 8);
1467 val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
1468 if (val > 32767 || val < -32768)
1469 as_bad (_("relative address out of range"));
1470 *buf++ = (val >> 8);
1472 fixP->fx_no_overflow = 1;
1477 *buf++ = (val >> 16);
1479 *buf++ = (val >> 8);
1485 md_number_to_chars (buf, val, fixP->fx_size);
1489 printf(_("md_apply_fix3: unknown r_type 0x%x\n"), fixP->fx_r_type);
1493 if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
1498 md_estimate_size_before_relax (fragS *fragP ATTRIBUTE_UNUSED,
1499 segT segment_type ATTRIBUTE_UNUSED)
1501 printf (_("call to md_estimate_size_before_relax\n"));
1505 /* Put number into target byte order. */
1508 md_number_to_chars (char *ptr, valueT use, int nbytes)
1510 number_to_chars_bigendian (ptr, use, nbytes);
1513 /* On the Z8000, a PC-relative offset is relative to the address of the
1514 instruction plus its size. */
1516 md_pcrel_from (fixS *fixP)
1518 return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
1522 tc_coff_symbol_emit_hook (symbolS *s ATTRIBUTE_UNUSED)
1527 tc_reloc_mangle (fixS *fix_ptr, struct internal_reloc *intr, bfd_vma base)
1529 symbolS *symbol_ptr;
1531 if (fix_ptr->fx_addsy
1532 && fix_ptr->fx_subsy)
1534 symbolS *add = fix_ptr->fx_addsy;
1535 symbolS *sub = fix_ptr->fx_subsy;
1537 if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub))
1538 as_bad (_("Can't subtract symbols in different sections %s %s"),
1539 S_GET_NAME (add), S_GET_NAME (sub));
1542 int diff = S_GET_VALUE (add) - S_GET_VALUE (sub);
1544 fix_ptr->fx_addsy = 0;
1545 fix_ptr->fx_subsy = 0;
1546 fix_ptr->fx_offset += diff;
1549 symbol_ptr = fix_ptr->fx_addsy;
1551 /* If this relocation is attached to a symbol then it's ok
1553 if (fix_ptr->fx_r_type == 0)
1555 /* cons likes to create reloc32's whatever the size of the reloc. */
1556 switch (fix_ptr->fx_size)
1559 intr->r_type = R_IMM16;
1562 intr->r_type = R_IMM8;
1565 intr->r_type = R_IMM32;
1572 intr->r_type = fix_ptr->fx_r_type;
1574 intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
1575 intr->r_offset = fix_ptr->fx_offset;
1578 intr->r_symndx = symbol_ptr->sy_number;
1580 intr->r_symndx = -1;