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;
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 {
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_bad (_("register rr%d out of range"), regno);
316 as_bad (_("register rr%d does not exist"), regno);
318 else if (src[1] == 'h')
320 if (src[2] < '0' || src[2] > '9')
321 return res; /* Assume no register name but a label starting with 'rh'. */
322 *mode = CLASS_REG_BYTE;
323 res = whatreg (reg, src + 2);
326 as_bad (_("register rh%d out of range"), regno);
328 else if (src[1] == 'l')
330 if (src[2] < '0' || src[2] > '9')
331 return res; /* Assume no register name but a label starting with 'rl'. */
332 *mode = CLASS_REG_BYTE;
333 res = whatreg (reg, src + 2);
336 as_bad (_("register rl%d out of range"), regno);
339 else if (src[1] == 'q')
341 if (src[2] < '0' || src[2] > '9')
342 return res; /* Assume no register name but a label starting with 'rq'. */
343 *mode = CLASS_REG_QUAD;
344 res = whatreg (reg, src + 2);
347 as_bad (_("register rq%d out of range"), regno);
349 as_bad (_("register rq%d does not exist"), regno);
353 if (src[1] < '0' || src[1] > '9')
354 return res; /* Assume no register name but a label starting with 'r'. */
355 *mode = CLASS_REG_WORD;
356 res = whatreg (reg, src + 1);
359 as_bad (_("register r%d out of range"), regno);
370 char *save = input_line_pointer;
373 input_line_pointer = s;
375 if (op->X_op == O_absent)
376 as_bad (_("missing operand"));
377 new = input_line_pointer;
378 input_line_pointer = save;
382 /* The many forms of operand:
404 as_bad (_("expected %c"), what);
409 /* Make sure the mode supplied is the size of a word. */
412 regword (mode, string)
421 as_bad (_("register is wrong size for a word %s"), string);
425 /* Make sure the mode supplied is the size of an address. */
428 regaddr (mode, string)
434 ok = segmented_mode ? CLASS_REG_LONG : CLASS_REG_WORD;
437 as_bad (_("register is wrong size for address %s"), string);
446 struct ctrl_names ctrl_table[] = {
459 get_ctrl_operand (ptr, mode, dst)
462 unsigned int dst ATTRIBUTE_UNUSED;
470 mode->mode = CLASS_CTRL;
471 for (i = 0; ctrl_table[i].name; i++)
475 for (j = 0; ctrl_table[i].name[j]; j++)
477 if (ctrl_table[i].name[j] != src[j])
480 the_ctrl = ctrl_table[i].value;
496 struct flag_names flag_table[] = {
507 get_flags_operand (ptr, mode, dst)
510 unsigned int dst ATTRIBUTE_UNUSED;
519 mode->mode = CLASS_FLAGS;
521 for (j = 0; j <= 9; j++)
525 for (i = 0; flag_table[i].name; i++)
527 if (flag_table[i].name[0] == src[j])
529 the_flags = the_flags | flag_table[i].value;
542 struct interrupt_names {
548 struct interrupt_names intr_table[] = {
557 get_interrupt_operand (ptr, mode, dst)
560 unsigned int dst ATTRIBUTE_UNUSED;
568 mode->mode = CLASS_IMM;
569 for (i = 0; intr_table[i].name; i++)
573 for (j = 0; intr_table[i].name[j]; j++)
575 if (intr_table[i].name[j] != src[j])
578 the_interrupt = intr_table[i].value;
584 /* No interrupt type specified, opcode won't do anything. */
585 as_warn (_("opcode has no effect"));
595 struct cc_names table[] = {
630 get_cc_operand (ptr, mode, dst)
633 unsigned int dst ATTRIBUTE_UNUSED;
641 mode->mode = CLASS_CC;
642 for (i = 0; table[i].name; i++)
644 l = strlen (table[i].name);
645 if (! strncasecmp (table[i].name, src, l))
647 the_cc = table[i].value;
648 if (*(src + l) && *(src + l) != ',')
650 *ptr = src + l; /* Valid cc found: "consume" it. */
654 the_cc = 0x8; /* Not recognizing the cc defaults to t. (Assuming no cc present.) */
658 get_operand (ptr, mode, dst)
661 unsigned int dst ATTRIBUTE_UNUSED;
672 mode->mode = CLASS_IMM;
673 imm_operand = &(mode->exp);
674 src = parse_exp (src + 1, &(mode->exp));
676 else if (*src == '@')
678 mode->mode = CLASS_IR;
679 src = parse_reg (src + 1, &mode->regsize, &mode->reg);
685 end = parse_reg (src, &mode->mode, ®n);
695 end = parse_reg (src, &nw, &nr);
702 as_bad (_("Missing ) in ra(rb)"));
706 regaddr (mode->mode, "ra(rb) ra");
708 regword (mode->mode, "ra(rb) rb");
710 mode->mode = CLASS_BX;
720 src = parse_exp (src, &(mode->exp));
721 src = checkfor (src, ')');
722 mode->mode = CLASS_BA;
725 imm_operand = &(mode->exp);
736 /* No initial reg. */
737 src = parse_exp (src, &(mode->exp));
741 end = parse_reg (src, &(mode->mode), ®n);
742 regword (mode->mode, "addr(Ra) ra");
743 mode->mode = CLASS_X;
746 da_operand = &(mode->exp);
747 src = checkfor (end, ')');
751 /* Just an address. */
752 mode->mode = CLASS_DA;
755 da_operand = &(mode->exp);
763 get_operands (opcode, op_end, operand)
764 const opcode_entry_type *opcode;
771 switch (opcode->noperands)
781 if (opcode->arg_info[0] == CLASS_CC)
783 get_cc_operand (&ptr, operand + 0, 0);
786 if (*ptr && ! is_end_of_line[(unsigned char) *ptr])
788 as_bad (_("invalid condition code '%s'"), ptr);
789 while (*ptr && ! is_end_of_line[(unsigned char) *ptr])
790 ptr++; /* Consume rest of line. */
794 else if (opcode->arg_info[0] == CLASS_FLAGS)
795 get_flags_operand (&ptr, operand + 0, 0);
797 else if (opcode->arg_info[0] == (CLASS_IMM + (ARG_IMM2)))
798 get_interrupt_operand (&ptr, operand + 0, 0);
801 get_operand (&ptr, operand + 0, 0);
808 if (opcode->arg_info[0] == CLASS_CC)
810 get_cc_operand (&ptr, operand + 0, 0);
813 if (*ptr != ',' && strchr (ptr + 1, ','))
820 as_bad (_("invalid condition code '%s'"), savptr);
824 else if (opcode->arg_info[0] == CLASS_CTRL)
826 get_ctrl_operand (&ptr, operand + 0, 0);
831 get_operand (&ptr, operand + 0, 0);
837 get_ctrl_operand (&ptr, operand + 1, 1);
842 get_operand (&ptr, operand + 0, 0);
848 get_operand (&ptr, operand + 1, 1);
852 get_operand (&ptr, operand + 0, 0);
855 get_operand (&ptr, operand + 1, 1);
858 get_operand (&ptr, operand + 2, 2);
862 get_operand (&ptr, operand + 0, 0);
865 get_operand (&ptr, operand + 1, 1);
868 get_operand (&ptr, operand + 2, 2);
871 get_cc_operand (&ptr, operand + 3, 3);
881 /* Passed a pointer to a list of opcodes which use different
882 addressing modes. Return the opcode which matches the opcodes
885 static opcode_entry_type *
886 get_specific (opcode, operands)
887 opcode_entry_type *opcode;
890 opcode_entry_type *this_try = opcode;
892 unsigned int noperands = opcode->noperands;
894 int this_index = opcode->idx;
896 while (this_index == opcode->idx && !found)
901 for (i = 0; i < noperands; i++)
903 unsigned int mode = operands[i].mode;
905 if (((mode & CLASS_MASK) == CLASS_IR) && ((this_try->arg_info[i] & CLASS_MASK) == CLASS_IRO))
907 mode = operands[i].mode = (operands[i].mode & ~CLASS_MASK) | CLASS_IRO;
910 if ((mode & CLASS_MASK) != (this_try->arg_info[i] & CLASS_MASK))
912 /* It could be a pc rel operand, if this is a da mode
913 and we like disps, then insert it. */
915 if (mode == CLASS_DA && this_try->arg_info[i] == CLASS_DISP)
917 /* This is the case. */
918 operands[i].mode = CLASS_DISP;
920 else if (mode == CLASS_BA && this_try->arg_info[i])
922 /* Can't think of a way to turn what we've been
923 given into something that's OK. */
926 else if (this_try->arg_info[i] & CLASS_PR)
928 if (mode == CLASS_REG_LONG && segmented_mode)
932 else if (mode == CLASS_REG_WORD && !segmented_mode)
942 switch (mode & CLASS_MASK)
947 if (operands[i].regsize != CLASS_REG_WORD)
948 as_bad (_("invalid indirect register size"));
949 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
952 if ((segmented_mode && operands[i].regsize != CLASS_REG_LONG)
953 || (!segmented_mode && operands[i].regsize != CLASS_REG_WORD))
954 as_bad (_("invalid indirect register size"));
955 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
967 reg[this_try->arg_info[i] & ARG_MASK] = operands[i].reg;
982 static char buffer[20];
985 newfix (ptr, type, size, operand)
988 int size; /* nibbles. */
989 expressionS *operand;
993 if (operand->X_add_symbol
994 || operand->X_op_symbol
995 || operand->X_add_number)
1004 fix_new_exp (frag_now,
1014 apply_fix (ptr, type, operand, size)
1017 expressionS *operand;
1018 int size; /* nibbles. */
1020 long n = operand->X_add_number;
1022 newfix ((ptr - buffer) / 2, type, size + 1, operand);
1025 case 8: /* 8 nibbles == 32 bits. */
1030 case 4: /* 4 nibbles == 16 bits. */
1042 /* Now we know what sort of opcodes it is. Let's build the bytes. */
1044 #define INSERT(x,y) *x++ = y>>24; *x++ = y>> 16; *x++=y>>8; *x++ =y;
1047 build_bytes (this_try, operand)
1048 opcode_entry_type *this_try;
1049 struct z8k_op *operand ATTRIBUTE_UNUSED;
1051 char *output_ptr = buffer;
1054 unsigned int *class_ptr;
1056 frag_wane (frag_now);
1059 memset (buffer, 0, sizeof (buffer));
1060 class_ptr = this_try->byte_info;
1062 for (nibble = 0; (c = *class_ptr++); nibble++)
1065 switch (c & CLASS_MASK)
1071 /* Direct address, we don't cope with the SS mode right now. */
1074 /* da_operand->X_add_number |= 0x80000000; -- Now set at relocation time. */
1075 output_ptr = apply_fix (output_ptr, R_IMM32, da_operand, 8);
1079 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1085 output_ptr = apply_fix (output_ptr, R_JR, da_operand, 2);
1092 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1099 output_ptr = apply_fix (output_ptr, R_DISP7, da_operand, 2);
1100 output_ptr[-2] = 0x8;
1104 case CLASS_BIT_1OR2:
1105 *output_ptr = c & 0xf;
1108 if (imm_operand->X_add_number == 2)
1110 else if (imm_operand->X_add_number != 1)
1111 as_bad (_("immediate must be 1 or 2"));
1114 as_bad (_("immediate 1 or 2 expected"));
1118 *output_ptr++ = the_cc;
1121 *output_ptr++ = the_ctrl;
1124 *output_ptr++ = the_ctrl | 0x8;
1127 *output_ptr++ = (~the_interrupt & 0x3);
1130 *output_ptr++ = (~the_interrupt & 0x3) | 0x4;
1133 *output_ptr++ = the_flags;
1137 *output_ptr++ = c & 0xf;
1140 if (reg[c & 0xf] == 0)
1141 as_bad (_("can't use R0 here"));
1144 case CLASS_REG_BYTE:
1145 case CLASS_REG_WORD:
1146 case CLASS_REG_LONG:
1147 case CLASS_REG_QUAD:
1148 /* Insert bit mattern of right reg. */
1149 *output_ptr++ = reg[c & 0xf];
1152 switch (c & ARG_MASK)
1155 output_ptr = apply_fix (output_ptr, R_CALLR, da_operand, 4);
1158 output_ptr = apply_fix (output_ptr, R_REL16, da_operand, 4);
1161 output_ptr = apply_fix (output_ptr, R_IMM16, da_operand, 4);
1168 switch (c & ARG_MASK)
1171 if (imm_operand->X_add_number > 15)
1173 as_bad (_("immediate value out of range"));
1175 imm_operand->X_add_number = -imm_operand->X_add_number;
1176 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1178 /*case ARG_IMMNMINUS1: not used. */
1180 imm_operand->X_add_number--;
1183 if (imm_operand->X_add_number > 15)
1185 as_bad (_("immediate value out of range"));
1187 output_ptr = apply_fix (output_ptr, R_IMM4L, imm_operand, 1);
1190 imm_operand->X_add_number = -imm_operand->X_add_number;
1193 output_ptr = apply_fix (output_ptr, R_IMM8, imm_operand, 2);
1196 output_ptr = apply_fix (output_ptr, R_IMM16, imm_operand, 4);
1199 output_ptr = apply_fix (output_ptr, R_IMM32, imm_operand, 8);
1208 /* Copy from the nibble buffer into the frag. */
1210 int length = (output_ptr - buffer) / 2;
1212 char *fragp = frag_more (length);
1214 while (src < output_ptr)
1216 *fragp = (src[0] << 4) | src[1];
1223 /* This is the guts of the machine-dependent assembler. STR points to a
1224 machine dependent instruction. This function is supposed to emit
1225 the frags/bytes it assembles to. */
1234 struct z8k_op operand[3];
1235 opcode_entry_type *opcode;
1237 /* Drop leading whitespace. */
1241 /* Find the op code end. */
1242 for (op_start = op_end = str;
1243 *op_end != 0 && *op_end != ' ' && ! is_end_of_line[(unsigned char) *op_end];
1247 if (op_end == op_start)
1249 as_bad (_("can't find opcode "));
1253 *op_end = 0; /* Zero-terminate op code string for hash_find() call. */
1255 opcode = (opcode_entry_type *) hash_find (opcode_hash_control, op_start);
1259 as_bad (_("unknown opcode"));
1263 *op_end = c; /* Restore original string. */
1265 if (opcode->opcode == 250)
1269 char *old = input_line_pointer;
1271 /* Was really a pseudo op. */
1273 input_line_pointer = op_end;
1277 while (*input_line_pointer == ' ')
1278 input_line_pointer++;
1279 p = (pseudo_typeS *) (opcode->func);
1281 (p->poc_handler) (p->poc_val);
1282 input_line_pointer = old;
1287 char *new_input_line_pointer;
1289 new_input_line_pointer = get_operands (opcode, op_end, operand);
1290 if (new_input_line_pointer)
1291 input_line_pointer = new_input_line_pointer;
1293 opcode = get_specific (opcode, operand);
1297 /* Couldn't find an opcode which matched the operands. */
1298 char *where = frag_more (2);
1303 as_bad (_("Can't find opcode to match operands"));
1307 build_bytes (opcode, operand);
1312 tc_crawl_symbol_chain (headers)
1313 object_headers *headers ATTRIBUTE_UNUSED;
1315 printf (_("call to tc_crawl_symbol_chain \n"));
1318 /* We have no need to default values of symbols. */
1321 md_undefined_symbol (name)
1322 char *name ATTRIBUTE_UNUSED;
1328 tc_headers_hook (headers)
1329 object_headers *headers ATTRIBUTE_UNUSED;
1331 printf (_("call to tc_headers_hook \n"));
1334 /* Various routines to kill one day. */
1335 /* Equal to MAX_PRECISION in atof-ieee.c. */
1336 #define MAX_LITTLENUMS 6
1338 /* Turn a string in input_line_pointer into a floating point constant
1339 of type TYPE, and store the appropriate bytes in *LITP. The number
1340 of LITTLENUMS emitted is stored in *SIZEP. An error message is
1341 returned, or NULL on OK. */
1344 md_atof (type, litP, sizeP)
1350 LITTLENUM_TYPE words[MAX_LITTLENUMS];
1351 LITTLENUM_TYPE *wordP;
1382 return _("Bad call to MD_ATOF()");
1384 t = atof_ieee (input_line_pointer, type, words);
1386 input_line_pointer = t;
1388 *sizeP = prec * sizeof (LITTLENUM_TYPE);
1389 for (wordP = words; prec--;)
1391 md_number_to_chars (litP, (long) (*wordP++), sizeof (LITTLENUM_TYPE));
1392 litP += sizeof (LITTLENUM_TYPE);
1397 const char *md_shortopts = "z:";
1399 struct option md_longopts[] =
1401 #define OPTION_RELAX (OPTION_MD_BASE)
1402 {"linkrelax", no_argument, NULL, OPTION_RELAX},
1403 {NULL, no_argument, NULL, 0}
1406 size_t md_longopts_size = sizeof (md_longopts);
1409 md_parse_option (c, arg)
1416 if (!strcmp (arg, "8001"))
1418 else if (!strcmp (arg, "8002"))
1422 as_bad (_("invalid architecture -z%s"), arg);
1425 z8k_target_from_cmdline = 1;
1440 md_show_usage (stream)
1443 fprintf (stream, _("\
1445 -z8001 generate segmented code\n\
1446 -z8002 generate unsegmented code\n\
1447 -linkrelax create linker relaxable code\n"));
1451 md_convert_frag (headers, seg, fragP)
1452 object_headers *headers ATTRIBUTE_UNUSED;
1453 segT seg ATTRIBUTE_UNUSED;
1454 fragS *fragP ATTRIBUTE_UNUSED;
1456 printf (_("call to md_convert_frag\n"));
1461 md_section_align (seg, size)
1465 return ((size + (1 << section_alignment[(int) seg]) - 1)
1466 & (-1 << section_alignment[(int) seg]));
1469 /* Attempt to simplify or eliminate a fixup. To indicate that a fixup
1470 has been eliminated, set fix->fx_done. If fix->fx_addsy is non-NULL,
1471 we will have to generate a reloc entry. */
1473 md_apply_fix3 (fixP, valP, segment)
1476 segT segment ATTRIBUTE_UNUSED;
1478 long val = * (long *) valP;
1479 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
1481 switch (fixP->fx_r_type)
1484 buf[0] = (buf[0] & 0xf0) | (val & 0xf);
1490 fixP->fx_no_overflow = 1;
1496 as_bad (_("cannot branch to odd address"));
1498 if (val > 127 || val < -128)
1499 as_warn (_("relative jump out of range"));
1501 fixP->fx_no_overflow = 1;
1509 fixP->fx_no_overflow = 1;
1515 as_bad (_("cannot branch to odd address"));
1517 if (val > 0 || val < -127)
1518 as_bad (_("relative jump out of range"));
1519 *buf = (*buf & 0x80) | (-val & 0x7f);
1520 fixP->fx_no_overflow = 1;
1528 fixP->fx_no_overflow = 1;
1534 as_bad (_("cannot branch to odd address"));
1535 if (val > 4096 || val < -4095)
1536 as_bad (_("relative call out of range"));
1538 *buf = (*buf & 0xf0) | ((val >> 8) & 0xf);
1540 *buf++ = val & 0xff;
1541 fixP->fx_no_overflow = 1;
1551 *buf++ = (val >> 8);
1556 *buf++ = (val >> 24);
1557 *buf++ = (val >> 16);
1558 *buf++ = (val >> 8);
1563 val = val - fixP->fx_frag->fr_address + fixP->fx_where - fixP->fx_size;
1564 if (val > 32767 || val < -32768)
1565 as_bad (_("relative address out of range"));
1566 *buf++ = (val >> 8);
1568 fixP->fx_no_overflow = 1;
1573 *buf++ = (val >> 16);
1575 *buf++ = (val >> 8);
1581 md_number_to_chars (buf, val, fixP->fx_size);
1585 printf(_("md_apply_fix3: unknown r_type 0x%x\n"), fixP->fx_r_type);
1589 if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
1594 md_estimate_size_before_relax (fragP, segment_type)
1595 register fragS *fragP ATTRIBUTE_UNUSED;
1596 register segT segment_type ATTRIBUTE_UNUSED;
1598 printf (_("call to md_estimate_size_before_relax\n"));
1602 /* Put number into target byte order. */
1605 md_number_to_chars (ptr, use, nbytes)
1610 number_to_chars_bigendian (ptr, use, nbytes);
1613 /* On the Z8000, a PC-relative offset is relative to the address of the
1614 instruction plus its size. */
1616 md_pcrel_from (fixP)
1619 return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
1623 tc_coff_symbol_emit_hook (s)
1624 symbolS *s ATTRIBUTE_UNUSED;
1629 tc_reloc_mangle (fix_ptr, intr, base)
1631 struct internal_reloc *intr;
1635 symbolS *symbol_ptr;
1637 if (fix_ptr->fx_addsy
1638 && fix_ptr->fx_subsy)
1640 symbolS *add = fix_ptr->fx_addsy;
1641 symbolS *sub = fix_ptr->fx_subsy;
1643 if (S_GET_SEGMENT (add) != S_GET_SEGMENT (sub))
1644 as_bad (_("Can't subtract symbols in different sections %s %s"),
1645 S_GET_NAME (add), S_GET_NAME (sub));
1648 int diff = S_GET_VALUE (add) - S_GET_VALUE (sub);
1650 fix_ptr->fx_addsy = 0;
1651 fix_ptr->fx_subsy = 0;
1652 fix_ptr->fx_offset += diff;
1655 symbol_ptr = fix_ptr->fx_addsy;
1657 /* If this relocation is attached to a symbol then it's ok
1659 if (fix_ptr->fx_r_type == 0)
1661 /* cons likes to create reloc32's whatever the size of the reloc. */
1662 switch (fix_ptr->fx_size)
1665 intr->r_type = R_IMM16;
1668 intr->r_type = R_IMM8;
1671 intr->r_type = R_IMM32;
1678 intr->r_type = fix_ptr->fx_r_type;
1680 intr->r_vaddr = fix_ptr->fx_frag->fr_address + fix_ptr->fx_where + base;
1681 intr->r_offset = fix_ptr->fx_offset;
1684 intr->r_symndx = symbol_ptr->sy_number;
1686 intr->r_symndx = -1;