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Display instruction when an insertion error is encountered.
[binutils-gdb.git] / gas / config / tc-v850.c
1 /* tc-v850.c -- Assembler code for the NEC V850
2 Copyright (C) 1996, 1997 Free Software Foundation.
3
4 This file is part of GAS, the GNU Assembler.
5
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 #include <stdio.h>
22 #include <ctype.h>
23 #include "as.h"
24 #include "subsegs.h"
25 #include "opcode/v850.h"
26
27 #define AREA_ZDA 0
28 #define AREA_SDA 1
29 #define AREA_TDA 2
30
31 /* sign-extend a 16-bit number */
32 #define SEXT16(x) ((((x) & 0xffff) ^ (~ 0x7fff)) + 0x8000)
33
34 /* Temporarily holds the reloc in a cons expression. */
35 static bfd_reloc_code_real_type hold_cons_reloc;
36
37 /* Set to TRUE if we want to be pedantic about signed overflows. */
38 static boolean warn_signed_overflows = FALSE;
39 static boolean warn_unsigned_overflows = FALSE;
40
41 /* Indicates the target BFD machine number. */
42 static int machine = -1;
43
44 /* Indicates the target processor(s) for the assemble. */
45 static unsigned int processor_mask = -1;
46
47 \f
48 /* Structure to hold information about predefined registers. */
49 struct reg_name
50 {
51 const char * name;
52 int value;
53 };
54
55 /* Generic assembler global variables which must be defined by all targets. */
56
57 /* Characters which always start a comment. */
58 const char comment_chars[] = "#";
59
60 /* Characters which start a comment at the beginning of a line. */
61 const char line_comment_chars[] = ";#";
62
63 /* Characters which may be used to separate multiple commands on a
64 single line. */
65 const char line_separator_chars[] = ";";
66
67 /* Characters which are used to indicate an exponent in a floating
68 point number. */
69 const char EXP_CHARS[] = "eE";
70
71 /* Characters which mean that a number is a floating point constant,
72 as in 0d1.0. */
73 const char FLT_CHARS[] = "dD";
74 \f
75
76 const relax_typeS md_relax_table[] =
77 {
78 /* Conditional branches. */
79 {0xff, -0x100, 2, 1},
80 {0x1fffff, -0x200000, 6, 0},
81 /* Unconditional branches. */
82 {0xff, -0x100, 2, 3},
83 {0x1fffff, -0x200000, 4, 0},
84 };
85
86
87 static segT sdata_section = NULL;
88 static segT tdata_section = NULL;
89 static segT zdata_section = NULL;
90 static segT sbss_section = NULL;
91 static segT tbss_section = NULL;
92 static segT zbss_section = NULL;
93 static segT rosdata_section = NULL;
94 static segT rozdata_section = NULL;
95 static segT scommon_section = NULL;
96 static segT tcommon_section = NULL;
97 static segT zcommon_section = NULL;
98 /* start-sanitize-v850e */
99 static segT call_table_data_section = NULL;
100 static segT call_table_text_section = NULL;
101 /* end-sanitize-v850e */
102
103 /* fixups */
104 #define MAX_INSN_FIXUPS (5)
105 struct v850_fixup
106 {
107 expressionS exp;
108 int opindex;
109 bfd_reloc_code_real_type reloc;
110 };
111
112 struct v850_fixup fixups [MAX_INSN_FIXUPS];
113 static int fc;
114
115 \f
116 void
117 v850_sdata (int ignore)
118 {
119 obj_elf_section_change_hook();
120
121 subseg_set (sdata_section, (subsegT) get_absolute_expression ());
122
123 demand_empty_rest_of_line ();
124 }
125
126 void
127 v850_tdata (int ignore)
128 {
129 obj_elf_section_change_hook();
130
131 subseg_set (tdata_section, (subsegT) get_absolute_expression ());
132
133 demand_empty_rest_of_line ();
134 }
135
136 void
137 v850_zdata (int ignore)
138 {
139 obj_elf_section_change_hook();
140
141 subseg_set (zdata_section, (subsegT) get_absolute_expression ());
142
143 demand_empty_rest_of_line ();
144 }
145
146 void
147 v850_sbss (int ignore)
148 {
149 obj_elf_section_change_hook();
150
151 subseg_set (sbss_section, (subsegT) get_absolute_expression ());
152
153 demand_empty_rest_of_line ();
154 }
155
156 void
157 v850_tbss (int ignore)
158 {
159 obj_elf_section_change_hook();
160
161 subseg_set (tbss_section, (subsegT) get_absolute_expression ());
162
163 demand_empty_rest_of_line ();
164 }
165
166 void
167 v850_zbss (int ignore)
168 {
169 obj_elf_section_change_hook();
170
171 subseg_set (zbss_section, (subsegT) get_absolute_expression ());
172
173 demand_empty_rest_of_line ();
174 }
175
176 void
177 v850_rosdata (int ignore)
178 {
179 obj_elf_section_change_hook();
180
181 subseg_set (rosdata_section, (subsegT) get_absolute_expression ());
182
183 demand_empty_rest_of_line ();
184 }
185
186 void
187 v850_rozdata (int ignore)
188 {
189 obj_elf_section_change_hook();
190
191 subseg_set (rozdata_section, (subsegT) get_absolute_expression ());
192
193 demand_empty_rest_of_line ();
194 }
195
196 /* start-sanitize-v850e */
197 void
198 v850_call_table_data (int ignore)
199 {
200 obj_elf_section_change_hook();
201
202 subseg_set (call_table_data_section, (subsegT) get_absolute_expression ());
203
204 demand_empty_rest_of_line ();
205 }
206
207 void
208 v850_call_table_text (int ignore)
209 {
210 obj_elf_section_change_hook();
211
212 subseg_set (call_table_text_section, (subsegT) get_absolute_expression ());
213
214 demand_empty_rest_of_line ();
215 }
216 /* end-sanitize-v850e */
217
218 void
219 v850_bss (int ignore)
220 {
221 register int temp = get_absolute_expression ();
222
223 obj_elf_section_change_hook();
224
225 subseg_set (bss_section, (subsegT) temp);
226
227 demand_empty_rest_of_line ();
228 }
229
230 void
231 v850_offset (int ignore)
232 {
233 int temp = get_absolute_expression ();
234
235 temp -= frag_now_fix();
236
237 if (temp > 0)
238 (void) frag_more (temp);
239
240 demand_empty_rest_of_line ();
241 }
242
243 /* Copied from obj_elf_common() in gas/config/obj-elf.c */
244 static void
245 v850_comm (area)
246 int area;
247 {
248 char * name;
249 char c;
250 char * p;
251 int temp;
252 int size;
253 symbolS * symbolP;
254 int have_align;
255
256 name = input_line_pointer;
257 c = get_symbol_end ();
258 /* just after name is now '\0' */
259 p = input_line_pointer;
260 *p = c;
261 SKIP_WHITESPACE ();
262 if (*input_line_pointer != ',')
263 {
264 as_bad ("Expected comma after symbol-name");
265 ignore_rest_of_line ();
266 return;
267 }
268 input_line_pointer++; /* skip ',' */
269 if ((temp = get_absolute_expression ()) < 0)
270 {
271 as_bad (".COMMon length (%d.) <0! Ignored.", temp);
272 ignore_rest_of_line ();
273 return;
274 }
275 size = temp;
276 *p = 0;
277 symbolP = symbol_find_or_make (name);
278 *p = c;
279 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
280 {
281 as_bad ("Ignoring attempt to re-define symbol");
282 ignore_rest_of_line ();
283 return;
284 }
285 if (S_GET_VALUE (symbolP) != 0)
286 {
287 if (S_GET_VALUE (symbolP) != size)
288 {
289 as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.",
290 S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size);
291 }
292 }
293 know (symbolP->sy_frag == &zero_address_frag);
294 if (*input_line_pointer != ',')
295 have_align = 0;
296 else
297 {
298 have_align = 1;
299 input_line_pointer++;
300 SKIP_WHITESPACE ();
301 }
302 if (! have_align || *input_line_pointer != '"')
303 {
304 if (! have_align)
305 temp = 0;
306 else
307 {
308 temp = get_absolute_expression ();
309 if (temp < 0)
310 {
311 temp = 0;
312 as_warn ("Common alignment negative; 0 assumed");
313 }
314 }
315 if (symbolP->local)
316 {
317 segT old_sec;
318 int old_subsec;
319 char * pfrag;
320 int align;
321
322 /* allocate_bss: */
323 old_sec = now_seg;
324 old_subsec = now_subseg;
325 if (temp)
326 {
327 /* convert to a power of 2 alignment */
328 for (align = 0; (temp & 1) == 0; temp >>= 1, ++align);
329 if (temp != 1)
330 {
331 as_bad ("Common alignment not a power of 2");
332 ignore_rest_of_line ();
333 return;
334 }
335 }
336 else
337 align = 0;
338 switch (area)
339 {
340 case AREA_SDA:
341 record_alignment (sbss_section, align);
342 obj_elf_section_change_hook();
343 subseg_set (sbss_section, 0);
344 break;
345
346 case AREA_ZDA:
347 record_alignment (zbss_section, align);
348 obj_elf_section_change_hook();
349 subseg_set (zbss_section, 0);
350 break;
351
352 case AREA_TDA:
353 record_alignment (tbss_section, align);
354 obj_elf_section_change_hook();
355 subseg_set (tbss_section, 0);
356 break;
357
358 default:
359 abort();
360 }
361
362 if (align)
363 frag_align (align, 0, 0);
364
365 switch (area)
366 {
367 case AREA_SDA:
368 if (S_GET_SEGMENT (symbolP) == sbss_section)
369 symbolP->sy_frag->fr_symbol = 0;
370 break;
371
372 case AREA_ZDA:
373 if (S_GET_SEGMENT (symbolP) == zbss_section)
374 symbolP->sy_frag->fr_symbol = 0;
375 break;
376
377 case AREA_TDA:
378 if (S_GET_SEGMENT (symbolP) == tbss_section)
379 symbolP->sy_frag->fr_symbol = 0;
380 break;
381
382 default:
383 abort();
384 }
385
386 symbolP->sy_frag = frag_now;
387 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
388 (offsetT) size, (char *) 0);
389 *pfrag = 0;
390 S_SET_SIZE (symbolP, size);
391
392 switch (area)
393 {
394 case AREA_SDA: S_SET_SEGMENT (symbolP, sbss_section); break;
395 case AREA_ZDA: S_SET_SEGMENT (symbolP, zbss_section); break;
396 case AREA_TDA: S_SET_SEGMENT (symbolP, tbss_section); break;
397 default:
398 abort();
399 }
400
401 S_CLEAR_EXTERNAL (symbolP);
402 obj_elf_section_change_hook();
403 subseg_set (old_sec, old_subsec);
404 }
405 else
406 {
407 allocate_common:
408 S_SET_VALUE (symbolP, (valueT) size);
409 S_SET_ALIGN (symbolP, temp);
410 S_SET_EXTERNAL (symbolP);
411
412 switch (area)
413 {
414 case AREA_SDA: S_SET_SEGMENT (symbolP, scommon_section); break;
415 case AREA_ZDA: S_SET_SEGMENT (symbolP, zcommon_section); break;
416 case AREA_TDA: S_SET_SEGMENT (symbolP, tcommon_section); break;
417 default:
418 abort();
419 }
420 }
421 }
422 else
423 {
424 input_line_pointer++;
425 /* @@ Some use the dot, some don't. Can we get some consistency?? */
426 if (*input_line_pointer == '.')
427 input_line_pointer++;
428 /* @@ Some say data, some say bss. */
429 if (strncmp (input_line_pointer, "bss\"", 4)
430 && strncmp (input_line_pointer, "data\"", 5))
431 {
432 while (*--input_line_pointer != '"')
433 ;
434 input_line_pointer--;
435 goto bad_common_segment;
436 }
437 while (*input_line_pointer++ != '"')
438 ;
439 goto allocate_common;
440 }
441
442 symbolP->bsym->flags |= BSF_OBJECT;
443
444 demand_empty_rest_of_line ();
445 return;
446
447 {
448 bad_common_segment:
449 p = input_line_pointer;
450 while (*p && *p != '\n')
451 p++;
452 c = *p;
453 *p = '\0';
454 as_bad ("bad .common segment %s", input_line_pointer + 1);
455 *p = c;
456 input_line_pointer = p;
457 ignore_rest_of_line ();
458 return;
459 }
460 }
461
462 void
463 set_machine (int number)
464 {
465 machine = number;
466 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
467
468 switch (machine)
469 {
470 case 0: processor_mask = PROCESSOR_V850; break;
471 /* start-sanitize-v850e */
472 case bfd_mach_v850e: processor_mask = PROCESSOR_V850E; break;
473 case bfd_mach_v850ea: processor_mask = PROCESSOR_V850EA; break;
474 /* end-sanitize-v850e */
475 }
476 }
477
478 /* The target specific pseudo-ops which we support. */
479 const pseudo_typeS md_pseudo_table[] =
480 {
481 {"sdata", v850_sdata, 0},
482 {"tdata", v850_tdata, 0},
483 {"zdata", v850_zdata, 0},
484 {"sbss", v850_sbss, 0},
485 {"tbss", v850_tbss, 0},
486 {"zbss", v850_zbss, 0},
487 {"rosdata", v850_rosdata, 0},
488 {"rozdata", v850_rozdata, 0},
489 {"bss", v850_bss, 0},
490 {"offset", v850_offset, 0},
491 {"word", cons, 4},
492 {"zcomm", v850_comm, AREA_ZDA},
493 {"scomm", v850_comm, AREA_SDA},
494 {"tcomm", v850_comm, AREA_TDA},
495 {"v850", set_machine, 0},
496 /* start-sanitize-v850e */
497 {"call_table_data", v850_call_table_data, 0},
498 {"call_table_text", v850_call_table_text, 0},
499 {"v850e", set_machine, bfd_mach_v850e},
500 {"v850ea", set_machine, bfd_mach_v850ea},
501 /* end-sanitize-v850e */
502 { NULL, NULL, 0}
503 };
504
505 /* Opcode hash table. */
506 static struct hash_control *v850_hash;
507
508 /* This table is sorted. Suitable for searching by a binary search. */
509 static const struct reg_name pre_defined_registers[] =
510 {
511 { "ep", 30 }, /* ep - element ptr */
512 { "gp", 4 }, /* gp - global ptr */
513 { "hp", 2 }, /* hp - handler stack ptr */
514 { "lp", 31 }, /* lp - link ptr */
515 { "r0", 0 },
516 { "r1", 1 },
517 { "r10", 10 },
518 { "r11", 11 },
519 { "r12", 12 },
520 { "r13", 13 },
521 { "r14", 14 },
522 { "r15", 15 },
523 { "r16", 16 },
524 { "r17", 17 },
525 { "r18", 18 },
526 { "r19", 19 },
527 { "r2", 2 },
528 { "r20", 20 },
529 { "r21", 21 },
530 { "r22", 22 },
531 { "r23", 23 },
532 { "r24", 24 },
533 { "r25", 25 },
534 { "r26", 26 },
535 { "r27", 27 },
536 { "r28", 28 },
537 { "r29", 29 },
538 { "r3", 3 },
539 { "r30", 30 },
540 { "r31", 31 },
541 { "r4", 4 },
542 { "r5", 5 },
543 { "r6", 6 },
544 { "r7", 7 },
545 { "r8", 8 },
546 { "r9", 9 },
547 { "sp", 3 }, /* sp - stack ptr */
548 { "tp", 5 }, /* tp - text ptr */
549 { "zero", 0 },
550 };
551 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
552
553
554 static const struct reg_name system_registers[] =
555 {
556 /* start-sanitize-v850e */
557 { "ctbp", 20 },
558 { "ctpc", 16 },
559 { "ctpsw", 17 },
560 { "dbpc", 18 },
561 { "dbpsw", 19 },
562 /* end-sanitize-v850e */
563 { "ecr", 4 },
564 { "eipc", 0 },
565 { "eipsw", 1 },
566 { "fepc", 2 },
567 { "fepsw", 3 },
568 { "psw", 5 },
569 };
570 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
571
572 /* start-sanitize-v850e */
573 static const struct reg_name system_list_registers[] =
574 {
575 {"PS", 5 },
576 {"SR", 0 + 1}
577 };
578 #define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name))
579 /* end-sanitize-v850e */
580
581 static const struct reg_name cc_names[] =
582 {
583 { "c", 0x1 },
584 { "e", 0x2 },
585 { "ge", 0xe },
586 { "gt", 0xf },
587 { "h", 0xb },
588 { "l", 0x1 },
589 { "le", 0x7 },
590 { "lt", 0x6 },
591 { "n", 0x4 },
592 { "nc", 0x9 },
593 { "ne", 0xa },
594 { "nh", 0x3 },
595 { "nl", 0x9 },
596 { "ns", 0xc },
597 { "nv", 0x8 },
598 { "nz", 0xa },
599 { "p", 0xc },
600 { "s", 0x4 },
601 { "sa", 0xd },
602 { "t", 0x5 },
603 { "v", 0x0 },
604 { "z", 0x2 },
605 };
606 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
607
608 /* reg_name_search does a binary search of the given register table
609 to see if "name" is a valid regiter name. Returns the register
610 number from the array on success, or -1 on failure. */
611
612 static int
613 reg_name_search (regs, regcount, name, accept_numbers)
614 const struct reg_name * regs;
615 int regcount;
616 const char * name;
617 boolean accept_numbers;
618 {
619 int middle, low, high;
620 int cmp;
621 symbolS * symbolP;
622
623 /* If the register name is a symbol, then evaluate it. */
624 if ((symbolP = symbol_find (name)) != NULL)
625 {
626 /* If the symbol is an alias for another name then use that.
627 If the symbol is an alias for a number, then return the number. */
628 if (symbolP->sy_value.X_op == O_symbol)
629 {
630 name = S_GET_NAME (symbolP->sy_value.X_add_symbol);
631 }
632 else if (accept_numbers)
633 {
634 int reg = S_GET_VALUE (symbolP);
635
636 if (reg >= 0 && reg <= 31)
637 return reg;
638 }
639 }
640
641 low = 0;
642 high = regcount - 1;
643
644 do
645 {
646 middle = (low + high) / 2;
647 cmp = strcasecmp (name, regs[middle].name);
648 if (cmp < 0)
649 high = middle - 1;
650 else if (cmp > 0)
651 low = middle + 1;
652 else
653 return regs[middle].value;
654 }
655 while (low <= high);
656 return -1;
657 }
658
659
660 /* Summary of register_name().
661 *
662 * in: Input_line_pointer points to 1st char of operand.
663 *
664 * out: A expressionS.
665 * The operand may have been a register: in this case, X_op == O_register,
666 * X_add_number is set to the register number, and truth is returned.
667 * Input_line_pointer->(next non-blank) char after operand, or is in
668 * its original state.
669 */
670 static boolean
671 register_name (expressionP)
672 expressionS * expressionP;
673 {
674 int reg_number;
675 char * name;
676 char * start;
677 char c;
678
679 /* Find the spelling of the operand */
680 start = name = input_line_pointer;
681
682 c = get_symbol_end ();
683
684 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name, FALSE);
685
686 * input_line_pointer = c; /* put back the delimiting char */
687
688 /* look to see if it's in the register table */
689 if (reg_number >= 0)
690 {
691 expressionP->X_op = O_register;
692 expressionP->X_add_number = reg_number;
693
694 /* make the rest nice */
695 expressionP->X_add_symbol = NULL;
696 expressionP->X_op_symbol = NULL;
697
698 return true;
699 }
700 else
701 {
702 /* reset the line as if we had not done anything */
703 input_line_pointer = start;
704
705 return false;
706 }
707 }
708
709 /* Summary of system_register_name().
710 *
711 * in: Input_line_pointer points to 1st char of operand.
712 * expressionP points to an expression structure to be filled in.
713 * accept_numbers is true iff numerical register names may be used.
714 * start-sanitize-v850e
715 * accept_list_names is true iff the special names PS and SR may be
716 * accepted.
717 * end-sanitize-v850e
718 *
719 * out: A expressionS structure in expressionP.
720 * The operand may have been a register: in this case, X_op == O_register,
721 * X_add_number is set to the register number, and truth is returned.
722 * Input_line_pointer->(next non-blank) char after operand, or is in
723 * its original state.
724 */
725 static boolean
726 system_register_name (expressionP, accept_numbers
727 /* start-sanitize-v850e */
728 , accept_list_names
729 /* end-sanitize-v850e */
730 )
731 expressionS * expressionP;
732 boolean accept_numbers;
733 /* start-sanitize-v850e */
734 boolean accept_list_names;
735 /* end-sanitize-v850e */
736 {
737 int reg_number;
738 char * name;
739 char * start;
740 char c;
741
742 /* Find the spelling of the operand */
743 start = name = input_line_pointer;
744
745 c = get_symbol_end ();
746 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name, accept_numbers);
747
748 * input_line_pointer = c; /* put back the delimiting char */
749
750 if (reg_number < 0
751 && accept_numbers)
752 {
753 input_line_pointer = start; /* reset input_line pointer */
754
755 if (isdigit (* input_line_pointer))
756 {
757 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
758
759 /* Make sure that the register number is allowable. */
760 if ( reg_number < 0
761 || reg_number > 5
762 /* start-sanitize-v850e */
763 && reg_number < 16
764 || reg_number > 20
765 /* end-sanitize-v850e */
766 )
767 {
768 reg_number = -1;
769 }
770 }
771 /* start-sanitize-v850e */
772 else if (accept_list_names)
773 {
774 c = get_symbol_end ();
775 reg_number = reg_name_search (system_list_registers, SYSREGLIST_NAME_CNT, name, FALSE);
776
777 * input_line_pointer = c; /* put back the delimiting char */
778 }
779 /* end-sanitize-v850e */
780 }
781
782 /* look to see if it's in the register table */
783 if (reg_number >= 0)
784 {
785 expressionP->X_op = O_register;
786 expressionP->X_add_number = reg_number;
787
788 /* make the rest nice */
789 expressionP->X_add_symbol = NULL;
790 expressionP->X_op_symbol = NULL;
791
792 return true;
793 }
794 else
795 {
796 /* reset the line as if we had not done anything */
797 input_line_pointer = start;
798
799 return false;
800 }
801 }
802
803 /* Summary of cc_name().
804 *
805 * in: Input_line_pointer points to 1st char of operand.
806 *
807 * out: A expressionS.
808 * The operand may have been a register: in this case, X_op == O_register,
809 * X_add_number is set to the register number, and truth is returned.
810 * Input_line_pointer->(next non-blank) char after operand, or is in
811 * its original state.
812 */
813 static boolean
814 cc_name (expressionP)
815 expressionS * expressionP;
816 {
817 int reg_number;
818 char * name;
819 char * start;
820 char c;
821
822 /* Find the spelling of the operand */
823 start = name = input_line_pointer;
824
825 c = get_symbol_end ();
826 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE);
827
828 * input_line_pointer = c; /* put back the delimiting char */
829
830 /* look to see if it's in the register table */
831 if (reg_number >= 0)
832 {
833 expressionP->X_op = O_constant;
834 expressionP->X_add_number = reg_number;
835
836 /* make the rest nice */
837 expressionP->X_add_symbol = NULL;
838 expressionP->X_op_symbol = NULL;
839
840 return true;
841 }
842 else
843 {
844 /* reset the line as if we had not done anything */
845 input_line_pointer = start;
846
847 return false;
848 }
849 }
850
851 static void
852 skip_white_space (void)
853 {
854 while ( * input_line_pointer == ' '
855 || * input_line_pointer == '\t')
856 ++ input_line_pointer;
857 }
858
859 /* start-sanitize-v850e */
860 /* Summary of parse_register_list ().
861 *
862 * in: Input_line_pointer points to 1st char of a list of registers.
863 * insn is the partially constructed instruction.
864 * operand is the operand being inserted.
865 *
866 * out: NULL if the parse completed successfully, otherwise a
867 * pointer to an error message is returned. If the parse
868 * completes the correct bit fields in the instruction
869 * will be filled in.
870 *
871 * Parses register lists with the syntax:
872 *
873 * { rX }
874 * { rX, rY }
875 * { rX - rY }
876 * { rX - rY, rZ }
877 * etc
878 *
879 * and also parses constant epxressions whoes bits indicate the
880 * registers in the lists. The LSB in the expression refers to
881 * the lowest numbered permissable register in the register list,
882 * and so on upwards. System registers are considered to be very
883 * high numbers.
884 *
885 */
886 static char *
887 parse_register_list
888 (
889 unsigned long * insn,
890 const struct v850_operand * operand
891 )
892 {
893 static int type1_regs[ 32 ] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
894 static int type2_regs[ 32 ] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
895 static int type3_regs[ 32 ] = { 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 };
896 int * regs;
897 expressionS exp;
898
899
900 /* Select a register array to parse. */
901 switch (operand->shift)
902 {
903 case 0xffe00001: regs = type1_regs; break;
904 case 0xfff8000f: regs = type2_regs; break;
905 case 0xfff8001f: regs = type3_regs; break;
906 default:
907 as_bad ("unknown operand shift: %x\n", operand->shift );
908 return "internal failure in parse_register_list";
909 }
910
911 skip_white_space();
912
913 /* If the expression starts with a curly brace it is a register list.
914 Otherwise it is a constant expression, whoes bits indicate which
915 registers are to be included in the list. */
916
917 if (* input_line_pointer != '{')
918 {
919 int bits;
920 int reg;
921 int i;
922
923 expression (& exp);
924
925 if (exp.X_op != O_constant)
926 return "constant expression or register list expected";
927
928 if (regs == type1_regs)
929 {
930 if (exp.X_add_number & 0xFFFFF000)
931 return "high bits set in register list expression";
932
933 for (reg = 20; reg < 32; reg ++)
934 if (exp.X_add_number & (1 << (reg - 20)))
935 {
936 for (i = 0; i < 32; i++)
937 if (regs[i] == reg)
938 * insn |= (1 << i);
939 }
940 }
941 else if (regs == type2_regs)
942 {
943 if (exp.X_add_number & 0xFFFE0000)
944 return "high bits set in register list expression";
945
946 for (reg = 1; reg < 16; reg ++)
947 if (exp.X_add_number & (1 << (reg - 1)))
948 {
949 for (i = 0; i < 32; i++)
950 if (regs[i] == reg)
951 * insn |= (1 << i);
952 }
953
954 if (exp.X_add_number & (1 << 15))
955 * insn |= (1 << 3);
956
957 if (exp.X_add_number & (1 << 16))
958 * insn |= (1 << 19);
959 }
960 else /* regs == type3_regs */
961 {
962 if (exp.X_add_number & 0xFFFE0000)
963 return "high bits set in register list expression";
964
965 for (reg = 16; reg < 32; reg ++)
966 if (exp.X_add_number & (1 << (reg - 16)))
967 {
968 for (i = 0; i < 32; i++)
969 if (regs[i] == reg)
970 * insn |= (1 << i);
971 }
972
973 if (exp.X_add_number & (1 << 16))
974 * insn |= (1 << 19);
975 }
976
977 return NULL;
978 }
979
980 input_line_pointer ++;
981
982 /* Parse the register list until a terminator (closing curly brace or new-line) is found. */
983 for (;;)
984 {
985 if (register_name (& exp))
986 {
987 int i;
988
989 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
990 for (i = 0; i < 32; i++)
991 {
992 if (regs[ i ] == exp.X_add_number)
993 {
994 * insn |= (1 << i);
995 break;
996 }
997 }
998
999 if (i == 32)
1000 {
1001 return "illegal register included in list";
1002 }
1003 }
1004 else if (system_register_name (& exp, true, true))
1005 {
1006 if (regs == type1_regs)
1007 {
1008 return "system registers cannot be included in list";
1009 }
1010 else if (exp.X_add_number == 5)
1011 {
1012 if (regs == type2_regs)
1013 return "PSW cannot be included in list";
1014 else
1015 * insn |= 0x8;
1016 }
1017 else if (exp.X_add_number < 4)
1018 * insn |= 0x80000;
1019 else
1020 return "High value system registers cannot be included in list";
1021 }
1022 else if (* input_line_pointer == '}')
1023 {
1024 input_line_pointer ++;
1025 break;
1026 }
1027 else if (* input_line_pointer == ',')
1028 {
1029 input_line_pointer ++;
1030 continue;
1031 }
1032 else if (* input_line_pointer == '-')
1033 {
1034 /* We have encountered a range of registers: rX - rY */
1035 int j;
1036 expressionS exp2;
1037
1038 /* Skip the dash. */
1039 ++ input_line_pointer;
1040
1041 /* Get the second register in the range. */
1042 if (! register_name (& exp2))
1043 {
1044 return "second register should follow dash in register list";
1045 exp2.X_add_number = exp.X_add_number;
1046 }
1047
1048 /* Add the rest of the registers in the range. */
1049 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
1050 {
1051 int i;
1052
1053 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
1054 for (i = 0; i < 32; i++)
1055 {
1056 if (regs[ i ] == j)
1057 {
1058 * insn |= (1 << i);
1059 break;
1060 }
1061 }
1062
1063 if (i == 32)
1064 {
1065 return "illegal register included in list";
1066 }
1067 }
1068 }
1069 else
1070 {
1071 break;
1072 }
1073
1074 skip_white_space ();
1075 }
1076
1077 return NULL;
1078 }
1079 /* end-sanitize-v850e */
1080
1081 CONST char * md_shortopts = "m:";
1082
1083 struct option md_longopts[] =
1084 {
1085 {NULL, no_argument, NULL, 0}
1086 };
1087 size_t md_longopts_size = sizeof md_longopts;
1088
1089
1090 void
1091 md_show_usage (stream)
1092 FILE * stream;
1093 {
1094 fprintf (stream, "V850 options:\n");
1095 fprintf (stream, "\t-mwarn-signed-overflow Warn if signed immediate values overflow\n");
1096 fprintf (stream, "\t-mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n");
1097 fprintf (stream, "\t-mv850 The code is targeted at the v850\n");
1098 /* start-sanitize-v850e */
1099 fprintf (stream, "\t-mv850e The code is targeted at the v850e\n");
1100 fprintf (stream, "\t-mv850ea The code is targeted at the v850ea\n");
1101 /* end-sanitize-v850e */
1102 }
1103
1104 int
1105 md_parse_option (c, arg)
1106 int c;
1107 char * arg;
1108 {
1109 if (c != 'm')
1110 {
1111 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1112 return 0;
1113 }
1114
1115 if (strcmp (arg, "warn-signed-overflow") == 0)
1116 {
1117 warn_signed_overflows = TRUE;
1118 }
1119 else if (strcmp (arg, "warn-unsigned-overflow") == 0)
1120 {
1121 warn_unsigned_overflows = TRUE;
1122 }
1123 else if (strcmp (arg, "v850") == 0)
1124 {
1125 machine = 0;
1126 processor_mask = PROCESSOR_V850;
1127 }
1128 /* start-sanitize-v850e */
1129 else if (strcmp (arg, "v850e") == 0)
1130 {
1131 machine = bfd_mach_v850e;
1132 processor_mask = PROCESSOR_V850E;
1133 }
1134 else if (strcmp (arg, "v850ea") == 0)
1135 {
1136 machine = bfd_mach_v850ea;
1137 processor_mask = PROCESSOR_V850EA;
1138 }
1139 /* end-sanitize-v850e */
1140 else
1141 {
1142 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1143 return 0;
1144 }
1145
1146 return 1;
1147 }
1148
1149 symbolS *
1150 md_undefined_symbol (name)
1151 char * name;
1152 {
1153 return 0;
1154 }
1155
1156 char *
1157 md_atof (type, litp, sizep)
1158 int type;
1159 char * litp;
1160 int * sizep;
1161 {
1162 int prec;
1163 LITTLENUM_TYPE words[4];
1164 char * t;
1165 int i;
1166
1167 switch (type)
1168 {
1169 case 'f':
1170 prec = 2;
1171 break;
1172
1173 case 'd':
1174 prec = 4;
1175 break;
1176
1177 default:
1178 *sizep = 0;
1179 return "bad call to md_atof";
1180 }
1181
1182 t = atof_ieee (input_line_pointer, type, words);
1183 if (t)
1184 input_line_pointer = t;
1185
1186 *sizep = prec * 2;
1187
1188 for (i = prec - 1; i >= 0; i--)
1189 {
1190 md_number_to_chars (litp, (valueT) words[i], 2);
1191 litp += 2;
1192 }
1193
1194 return NULL;
1195 }
1196
1197
1198 /* Very gross. */
1199 void
1200 md_convert_frag (abfd, sec, fragP)
1201 bfd * abfd;
1202 asection * sec;
1203 fragS * fragP;
1204 {
1205 subseg_change (sec, 0);
1206
1207 /* In range conditional or unconditional branch. */
1208 if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2)
1209 {
1210 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
1211 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
1212 fragP->fr_var = 0;
1213 fragP->fr_fix += 2;
1214 }
1215 /* Out of range conditional branch. Emit a branch around a jump. */
1216 else if (fragP->fr_subtype == 1)
1217 {
1218 unsigned char *buffer =
1219 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
1220
1221 /* Reverse the condition of the first branch. */
1222 buffer[0] ^= 0x08;
1223 /* Mask off all the displacement bits. */
1224 buffer[0] &= 0x8f;
1225 buffer[1] &= 0x07;
1226 /* Now set the displacement bits so that we branch
1227 around the unconditional branch. */
1228 buffer[0] |= 0x30;
1229
1230 /* Now create the unconditional branch + fixup to the final
1231 target. */
1232 md_number_to_chars (buffer + 2, 0x00000780, 4);
1233 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
1234 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
1235 fragP->fr_var = 0;
1236 fragP->fr_fix += 6;
1237 }
1238 /* Out of range unconditional branch. Emit a jump. */
1239 else if (fragP->fr_subtype == 3)
1240 {
1241 md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4);
1242 fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
1243 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
1244 fragP->fr_var = 0;
1245 fragP->fr_fix += 4;
1246 }
1247 else
1248 abort ();
1249 }
1250
1251 valueT
1252 md_section_align (seg, addr)
1253 asection * seg;
1254 valueT addr;
1255 {
1256 int align = bfd_get_section_alignment (stdoutput, seg);
1257 return ((addr + (1 << align) - 1) & (-1 << align));
1258 }
1259
1260 void
1261 md_begin ()
1262 {
1263 char * prev_name = "";
1264 register const struct v850_opcode * op;
1265 flagword applicable;
1266
1267 /* start-sanitize-v850e */
1268 if (strncmp (TARGET_CPU, "v850ea", 6) == 0)
1269 {
1270 if (machine == -1)
1271 machine = bfd_mach_v850ea;
1272
1273 if (processor_mask == -1)
1274 processor_mask = PROCESSOR_V850EA;
1275 }
1276 else if (strncmp (TARGET_CPU, "v850e", 5) == 0)
1277 {
1278 if (machine == -1)
1279 machine = bfd_mach_v850e;
1280
1281 if (processor_mask == -1)
1282 processor_mask = PROCESSOR_V850E;
1283 }
1284 else
1285 /* end-sanitize-v850e */
1286 if (strncmp (TARGET_CPU, "v850", 4) == 0)
1287 {
1288 if (machine == -1)
1289 machine = 0;
1290
1291 if (processor_mask == -1)
1292 processor_mask = PROCESSOR_V850;
1293 }
1294 else
1295 as_bad ("Unable to determine default target processor from string: %s",
1296 TARGET_CPU);
1297
1298 v850_hash = hash_new();
1299
1300 /* Insert unique names into hash table. The V850 instruction set
1301 has many identical opcode names that have different opcodes based
1302 on the operands. This hash table then provides a quick index to
1303 the first opcode with a particular name in the opcode table. */
1304
1305 op = v850_opcodes;
1306 while (op->name)
1307 {
1308 if (strcmp (prev_name, op->name))
1309 {
1310 prev_name = (char *) op->name;
1311 hash_insert (v850_hash, op->name, (char *) op);
1312 }
1313 op++;
1314 }
1315
1316 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
1317
1318 applicable = bfd_applicable_section_flags (stdoutput);
1319
1320 sdata_section = subseg_new (".sdata", 0);
1321 bfd_set_section_flags (stdoutput, sdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1322
1323 tdata_section = subseg_new (".tdata", 0);
1324 bfd_set_section_flags (stdoutput, tdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1325
1326 zdata_section = subseg_new (".zdata", 0);
1327 bfd_set_section_flags (stdoutput, zdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1328
1329 sbss_section = subseg_new (".sbss", 0);
1330 bfd_set_section_flags (stdoutput, sbss_section, applicable & SEC_ALLOC);
1331 seg_info (sbss_section)->bss = 1;
1332
1333 tbss_section = subseg_new (".tbss", 0);
1334 bfd_set_section_flags (stdoutput, tbss_section, applicable & SEC_ALLOC);
1335 seg_info (tbss_section)->bss = 1;
1336
1337 zbss_section = subseg_new (".zbss", 0);
1338 bfd_set_section_flags (stdoutput, zbss_section, applicable & SEC_ALLOC);
1339 seg_info (zbss_section)->bss = 1;
1340
1341 rosdata_section = subseg_new (".rosdata", 0);
1342 bfd_set_section_flags (stdoutput, rosdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1343
1344 rozdata_section = subseg_new (".rozdata", 0);
1345 bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1346
1347 scommon_section = subseg_new (".scommon", 0);
1348 bfd_set_section_flags (stdoutput, scommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1349
1350 zcommon_section = subseg_new (".zcommon", 0);
1351 bfd_set_section_flags (stdoutput, zcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1352
1353 tcommon_section = subseg_new (".tcommon", 0);
1354 bfd_set_section_flags (stdoutput, tcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1355
1356 /* start-sanitize-v850e */
1357 call_table_data_section = subseg_new (".call_table_data", 0);
1358 bfd_set_section_flags (stdoutput, call_table_data_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1359
1360 call_table_text_section = subseg_new (".call_table_text", 0);
1361 bfd_set_section_flags (stdoutput, call_table_text_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE));
1362 /* end-sanitize-v850e */
1363 }
1364
1365
1366 /* start-sanitize-v850e */
1367 static bfd_reloc_code_real_type
1368 handle_ctoff (const struct v850_operand * operand)
1369 {
1370 if (operand == NULL)
1371 return BFD_RELOC_V850_CALLT_16_16_OFFSET;
1372
1373 if ( operand->bits != 6
1374 || operand->shift != 0)
1375 {
1376 as_bad ("ctoff() relocation used on an instruction which does not support it");
1377 return BFD_RELOC_64; /* Used to indicate an error condition. */
1378 }
1379
1380 return BFD_RELOC_V850_CALLT_6_7_OFFSET;
1381 }
1382 /* end-sanitize-v850e */
1383
1384 static bfd_reloc_code_real_type
1385 handle_sdaoff (const struct v850_operand * operand)
1386 {
1387 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1388 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1389 /* start-sanitize-v850e */
1390 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1391 /* end-sanitize-v850e */
1392
1393 if ( operand->bits != 16
1394 || operand->shift != 16)
1395 {
1396 as_bad ("sdaoff() relocation used on an instruction which does not support it");
1397 return BFD_RELOC_64; /* Used to indicate an error condition. */
1398 }
1399
1400 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1401 }
1402
1403 static bfd_reloc_code_real_type
1404 handle_zdaoff (const struct v850_operand * operand)
1405 {
1406 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1407 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1408 /* start-sanitize-v850e */
1409 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1410 /* end-sanitize-v850e */
1411
1412 if ( operand->bits != 16
1413 || operand->shift != 16)
1414 {
1415 as_bad ("zdaoff() relocation used on an instruction which does not support it");
1416 return BFD_RELOC_64; /* Used to indicate an error condition. */
1417 }
1418
1419 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1420 }
1421
1422 static bfd_reloc_code_real_type
1423 handle_tdaoff (const struct v850_operand * operand)
1424 {
1425 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */
1426 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */
1427 /* start-sanitize-v850e */
1428 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */
1429 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */
1430 /* end-sanitize-v850e */
1431 if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
1432
1433 if (operand->bits != 7)
1434 {
1435 as_bad ("tdaoff() relocation used on an instruction which does not support it");
1436 return BFD_RELOC_64; /* Used to indicate an error condition. */
1437 }
1438
1439 return operand->insert != NULL
1440 ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */
1441 : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */
1442 }
1443
1444 /* Warning: The code in this function relies upon the definitions
1445 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1446 matching the hard coded values contained herein. */
1447
1448 static bfd_reloc_code_real_type
1449 v850_reloc_prefix (const struct v850_operand * operand)
1450 {
1451 boolean paren_skipped = false;
1452
1453
1454 /* Skip leading opening parenthesis. */
1455 if (* input_line_pointer == '(')
1456 {
1457 ++ input_line_pointer;
1458 paren_skipped = true;
1459 }
1460
1461 #define CHECK_(name, reloc) \
1462 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1463 { \
1464 input_line_pointer += strlen (name); \
1465 return reloc; \
1466 }
1467
1468 CHECK_ ("hi0", BFD_RELOC_HI16);
1469 CHECK_ ("hi", BFD_RELOC_HI16_S);
1470 CHECK_ ("lo", BFD_RELOC_LO16);
1471 CHECK_ ("sdaoff", handle_sdaoff (operand));
1472 CHECK_ ("zdaoff", handle_zdaoff (operand));
1473 CHECK_ ("tdaoff", handle_tdaoff (operand));
1474
1475 /* start-sanitize-v850e */
1476 CHECK_ ("hilo", BFD_RELOC_32);
1477 CHECK_ ("ctoff", handle_ctoff (operand));
1478 /* end-sanitize-v850e */
1479
1480 /* Restore skipped parenthesis. */
1481 if (paren_skipped)
1482 -- input_line_pointer;
1483
1484 return BFD_RELOC_UNUSED;
1485 }
1486
1487 /* Insert an operand value into an instruction. */
1488
1489 static unsigned long
1490 v850_insert_operand (insn, operand, val, file, line, str)
1491 unsigned long insn;
1492 const struct v850_operand * operand;
1493 offsetT val;
1494 char * file;
1495 unsigned int line;
1496 char * str;
1497 {
1498 if (operand->insert)
1499 {
1500 const char * message = NULL;
1501
1502 insn = operand->insert (insn, val, & message);
1503 if (message != NULL)
1504 {
1505 if ((operand->flags & V850_OPERAND_SIGNED)
1506 && ! warn_signed_overflows
1507 && strstr (message, "out of range") != NULL)
1508 {
1509 /* skip warning... */
1510 }
1511 else if ((operand->flags & V850_OPERAND_SIGNED) == 0
1512 && ! warn_unsigned_overflows
1513 && strstr (message, "out of range") != NULL)
1514 {
1515 /* skip warning... */
1516 }
1517 else if (str)
1518 {
1519 if (file == (char *) NULL)
1520 as_warn ("%s: %s", str, message);
1521 else
1522 as_warn_where (file, line, "%s: %s", str, message);
1523 }
1524 else
1525 {
1526 if (file == (char *) NULL)
1527 as_warn (message);
1528 else
1529 as_warn_where (file, line, message);
1530 }
1531 }
1532 }
1533 else
1534 {
1535 if (operand->bits != 32)
1536 {
1537 long min, max;
1538 offsetT test;
1539
1540 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
1541 {
1542 if (! warn_signed_overflows)
1543 max = (1 << operand->bits) - 1;
1544 else
1545 max = (1 << (operand->bits - 1)) - 1;
1546
1547 min = - (1 << (operand->bits - 1));
1548 }
1549 else
1550 {
1551 max = (1 << operand->bits) - 1;
1552
1553 if (! warn_unsigned_overflows)
1554 min = - (1 << (operand->bits - 1));
1555 else
1556 min = 0;
1557 }
1558
1559 if (val < (offsetT) min || val > (offsetT) max)
1560 {
1561 const char * err = "operand out of range (%s not between %ld and %ld)";
1562 char buf[100];
1563
1564 /* Restore min and mix to expected values for decimal ranges. */
1565 if ((operand->flags & V850_OPERAND_SIGNED) && ! warn_signed_overflows)
1566 max = (1 << (operand->bits - 1)) - 1;
1567
1568 if (! (operand->flags & V850_OPERAND_SIGNED)
1569 && ! warn_unsigned_overflows)
1570 min = 0;
1571
1572 if (str)
1573 {
1574 sprintf (buf, "%s: ", str);
1575
1576 sprint_value (buf + strlen (buf), val);
1577 }
1578 else
1579 sprint_value (buf, val);
1580
1581 if (file == (char *) NULL)
1582 as_warn (err, buf, min, max);
1583 else
1584 as_warn_where (file, line, err, buf, min, max);
1585 }
1586 }
1587
1588 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
1589 }
1590
1591 return insn;
1592 }
1593
1594 \f
1595 static char copy_of_instruction [128];
1596
1597 void
1598 md_assemble (str)
1599 char * str;
1600 {
1601 char * s;
1602 char * start_of_operands;
1603 struct v850_opcode * opcode;
1604 struct v850_opcode * next_opcode;
1605 const unsigned char * opindex_ptr;
1606 int next_opindex;
1607 int relaxable;
1608 unsigned long insn;
1609 unsigned long insn_size;
1610 char * f;
1611 int i;
1612 int match;
1613 boolean extra_data_after_insn = false;
1614 unsigned extra_data_len;
1615 unsigned long extra_data;
1616 char * saved_input_line_pointer;
1617
1618
1619 strncpy (copy_of_instruction, str, sizeof (copy_of_instruction) - 1);
1620
1621 /* Get the opcode. */
1622 for (s = str; *s != '\0' && ! isspace (*s); s++)
1623 continue;
1624
1625 if (*s != '\0')
1626 *s++ = '\0';
1627
1628 /* find the first opcode with the proper name */
1629 opcode = (struct v850_opcode *) hash_find (v850_hash, str);
1630 if (opcode == NULL)
1631 {
1632 as_bad ("Unrecognized opcode: `%s'", str);
1633 ignore_rest_of_line ();
1634 return;
1635 }
1636
1637 str = s;
1638 while (isspace (* str))
1639 ++ str;
1640
1641 start_of_operands = str;
1642
1643 saved_input_line_pointer = input_line_pointer;
1644
1645 for (;;)
1646 {
1647 const char * errmsg = NULL;
1648
1649 match = 0;
1650
1651 if ((opcode->processors & processor_mask) == 0)
1652 {
1653 errmsg = "Target processor does not support this instruction.";
1654 goto error;
1655 }
1656
1657 relaxable = 0;
1658 fc = 0;
1659 next_opindex = 0;
1660 insn = opcode->opcode;
1661 extra_data_after_insn = false;
1662
1663 input_line_pointer = str = start_of_operands;
1664
1665 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1666 {
1667 const struct v850_operand * operand;
1668 char * hold;
1669 expressionS ex;
1670 bfd_reloc_code_real_type reloc;
1671
1672 if (next_opindex == 0)
1673 {
1674 operand = & v850_operands[ * opindex_ptr ];
1675 }
1676 else
1677 {
1678 operand = & v850_operands[ next_opindex ];
1679 next_opindex = 0;
1680 }
1681
1682 errmsg = NULL;
1683
1684 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1685 ++ str;
1686
1687 if (operand->flags & V850_OPERAND_RELAX)
1688 relaxable = 1;
1689
1690 /* Gather the operand. */
1691 hold = input_line_pointer;
1692 input_line_pointer = str;
1693
1694 /* lo(), hi(), hi0(), etc... */
1695 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1696 {
1697 if (reloc == BFD_RELOC_64) /* This is a fake reloc, used to indicate an error condition. */
1698 {
1699 match = 1;
1700 goto error;
1701 }
1702
1703 expression (& ex);
1704
1705 if (ex.X_op == O_constant)
1706 {
1707 switch (reloc)
1708 {
1709 case BFD_RELOC_V850_ZDA_16_16_OFFSET:
1710 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]" and the like. */
1711 /* Fall through. */
1712
1713 case BFD_RELOC_LO16:
1714 {
1715 /* Truncate, then sign extend the value. */
1716 ex.X_add_number = SEXT16 (ex.X_add_number);
1717 break;
1718 }
1719
1720 case BFD_RELOC_HI16:
1721 {
1722 /* Truncate, then sign extend the value. */
1723 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1724 break;
1725 }
1726
1727 case BFD_RELOC_HI16_S:
1728 {
1729 /* Truncate, then sign extend the value. */
1730 int temp = (ex.X_add_number >> 16) & 0xffff;
1731
1732 temp += (ex.X_add_number >> 15) & 1;
1733
1734 ex.X_add_number = SEXT16 (temp);
1735 break;
1736 }
1737
1738 /* start-sanitize-v850e */
1739 case BFD_RELOC_32:
1740 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1741 {
1742 errmsg = "immediate operand is too large";
1743 goto error;
1744 }
1745
1746 extra_data_after_insn = true;
1747 extra_data_len = 4;
1748 extra_data = ex.X_add_number;
1749 ex.X_add_number = 0;
1750 break;
1751 /* end-sanitize-v850e */
1752
1753 default:
1754 fprintf (stderr, "reloc: %d\n", reloc);
1755 as_bad ("AAARG -> unhandled constant reloc");
1756 break;
1757 }
1758
1759 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1760 (char *) NULL, 0, copy_of_instruction);
1761 }
1762 else
1763 {
1764 /* start-sanitize-v850e */
1765 if (reloc == BFD_RELOC_32)
1766 {
1767 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1768 {
1769 errmsg = "immediate operand is too large";
1770 goto error;
1771 }
1772
1773 extra_data_after_insn = true;
1774 extra_data_len = 4;
1775 extra_data = ex.X_add_number;
1776 }
1777 /* end-sanitize-v850e */
1778
1779 if (fc > MAX_INSN_FIXUPS)
1780 as_fatal ("too many fixups");
1781
1782 fixups[ fc ].exp = ex;
1783 fixups[ fc ].opindex = * opindex_ptr;
1784 fixups[ fc ].reloc = reloc;
1785 fc++;
1786 }
1787 }
1788 else
1789 {
1790 errmsg = NULL;
1791
1792 if ((operand->flags & V850_OPERAND_REG) != 0)
1793 {
1794 if (!register_name (& ex))
1795 {
1796 errmsg = "invalid register name";
1797 }
1798
1799 if ((operand->flags & V850_NOT_R0)
1800 && ex.X_add_number == 0)
1801 {
1802 errmsg = "register r0 cannot be used here";
1803
1804 /* Force an error message to be generated by
1805 skipping over any following potential matches
1806 for this opcode. */
1807 opcode += 3;
1808
1809 if (* input_line_pointer == ']')
1810 ++ input_line_pointer;
1811 }
1812 }
1813 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1814 {
1815 if (!system_register_name (& ex, true
1816 /* start-sanitize-v850e */
1817 , false
1818 /* end-sanitize-v850e */
1819 ))
1820 {
1821 errmsg = "invalid system register name";
1822 }
1823 }
1824 else if ((operand->flags & V850_OPERAND_EP) != 0)
1825 {
1826 char * start = input_line_pointer;
1827 char c = get_symbol_end ();
1828
1829 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1830 {
1831 /* Put things back the way we found them. */
1832 *input_line_pointer = c;
1833 input_line_pointer = start;
1834 errmsg = "expected EP register";
1835 goto error;
1836 }
1837
1838 *input_line_pointer = c;
1839 str = input_line_pointer;
1840 input_line_pointer = hold;
1841
1842 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1843 ++str;
1844 continue;
1845 }
1846 else if ((operand->flags & V850_OPERAND_CC) != 0)
1847 {
1848 if (!cc_name (& ex))
1849 {
1850 errmsg = "invalid condition code name";
1851 }
1852 }
1853 /* start-sanitize-v850e */
1854 else if (operand->flags & V850E_PUSH_POP)
1855 {
1856 errmsg = parse_register_list (& insn, operand);
1857
1858 /* The parse_register_list() function has already done everything, so fake a dummy expression. */
1859 ex.X_op = O_constant;
1860 ex.X_add_number = 0;
1861 }
1862 else if (operand->flags & V850E_IMMEDIATE16)
1863 {
1864 expression (& ex);
1865
1866 if (ex.X_op != O_constant)
1867 errmsg = "constant expression expected";
1868 else if (ex.X_add_number & 0xffff0000)
1869 {
1870 if (ex.X_add_number & 0xffff)
1871 errmsg = "constant too big to fit into instruction";
1872 else if ((insn & 0x001fffc0) == 0x00130780)
1873 ex.X_add_number >>= 16;
1874 else
1875 errmsg = "constant too big to fit into instruction";
1876 }
1877
1878 extra_data_after_insn = true;
1879 extra_data_len = 2;
1880 extra_data = ex.X_add_number;
1881 ex.X_add_number = 0;
1882 }
1883 else if (operand->flags & V850E_IMMEDIATE32)
1884 {
1885 expression (& ex);
1886
1887 if (ex.X_op != O_constant)
1888 errmsg = "constant expression expected";
1889
1890 extra_data_after_insn = true;
1891 extra_data_len = 4;
1892 extra_data = ex.X_add_number;
1893 ex.X_add_number = 0;
1894 }
1895 /* end-sanitize-v850e */
1896 else if (register_name (& ex)
1897 && (operand->flags & V850_OPERAND_REG) == 0)
1898 {
1899 /* It is possible that an alias has been defined that
1900 matches a register name. For example the code may
1901 include a ".set ZERO, 0" directive, which matches
1902 the register name "zero". Attempt to reparse the
1903 field as an expression, and only complain if we
1904 cannot generate a constant. */
1905
1906 input_line_pointer = str;
1907
1908 expression (& ex);
1909
1910 if (ex.X_op != O_constant)
1911 errmsg = "syntax error: register not expected";
1912 }
1913 else if (system_register_name (& ex, false
1914 /* start-sanitize-v850e */
1915 , false
1916 /* end-sanitize-v850e */
1917 )
1918 && (operand->flags & V850_OPERAND_SRG) == 0)
1919 {
1920 errmsg = "syntax error: system register not expected";
1921 }
1922 else if (cc_name (&ex)
1923 && (operand->flags & V850_OPERAND_CC) == 0)
1924 {
1925 errmsg = "syntax error: condition code not expected";
1926 }
1927 else
1928 {
1929 expression (& ex);
1930 /* start-sanitize-v850e */
1931 /* Special case:
1932 If we are assembling a MOV instruction (or a CALLT.... :-)
1933 and the immediate value does not fit into the bits available
1934 then create a fake error so that the next MOV instruction
1935 will be selected. This one has a 32 bit immediate field. */
1936
1937 if (((insn & 0x07e0) == 0x0200)
1938 && ex.X_op == O_constant
1939 && (ex.X_add_number < (- (1 << (operand->bits - 1))) || ex.X_add_number > ((1 << operand->bits) - 1)))
1940 errmsg = "immediate constant is too large";
1941 /* end-sanitize-v850e */
1942 }
1943
1944 if (errmsg)
1945 goto error;
1946
1947 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n", insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
1948
1949 switch (ex.X_op)
1950 {
1951 case O_illegal:
1952 errmsg = "illegal operand";
1953 goto error;
1954 case O_absent:
1955 errmsg = "missing operand";
1956 goto error;
1957 case O_register:
1958 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
1959 {
1960 errmsg = "invalid operand";
1961 goto error;
1962 }
1963 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1964 (char *) NULL, 0, copy_of_instruction);
1965 break;
1966
1967 case O_constant:
1968 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1969 (char *) NULL, 0, copy_of_instruction);
1970 break;
1971
1972 default:
1973 /* We need to generate a fixup for this expression. */
1974 if (fc >= MAX_INSN_FIXUPS)
1975 as_fatal ("too many fixups");
1976
1977 fixups[ fc ].exp = ex;
1978 fixups[ fc ].opindex = * opindex_ptr;
1979 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
1980 ++fc;
1981 break;
1982 }
1983 }
1984
1985 str = input_line_pointer;
1986 input_line_pointer = hold;
1987
1988 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
1989 || *str == ')')
1990 ++str;
1991 }
1992 match = 1;
1993
1994 error:
1995 if (match == 0)
1996 {
1997 next_opcode = opcode + 1;
1998 if (next_opcode->name != NULL && strcmp (next_opcode->name, opcode->name) == 0)
1999 {
2000 opcode = next_opcode;
2001 continue;
2002 }
2003
2004 as_bad (errmsg);
2005 ignore_rest_of_line ();
2006 input_line_pointer = saved_input_line_pointer;
2007 return;
2008 }
2009 break;
2010 }
2011
2012 while (isspace (*str))
2013 ++str;
2014
2015 if (*str != '\0')
2016 as_bad ("junk at end of line: `%s'", str);
2017
2018 input_line_pointer = str;
2019
2020 /* Write out the instruction. */
2021
2022 if (relaxable && fc > 0)
2023 {
2024 insn_size = 2;
2025 fc = 0;
2026
2027 if (!strcmp (opcode->name, "br"))
2028 {
2029 f = frag_var (rs_machine_dependent, 4, 2, 2,
2030 fixups[0].exp.X_add_symbol,
2031 fixups[0].exp.X_add_number,
2032 (char *)fixups[0].opindex);
2033 md_number_to_chars (f, insn, insn_size);
2034 md_number_to_chars (f + 2, 0, 2);
2035 }
2036 else
2037 {
2038 f = frag_var (rs_machine_dependent, 6, 4, 0,
2039 fixups[0].exp.X_add_symbol,
2040 fixups[0].exp.X_add_number,
2041 (char *)fixups[0].opindex);
2042 md_number_to_chars (f, insn, insn_size);
2043 md_number_to_chars (f + 2, 0, 4);
2044 }
2045 }
2046 else
2047 {
2048 /* Four byte insns have an opcode with the two high bits on. */
2049 if ((insn & 0x0600) == 0x0600)
2050 insn_size = 4;
2051 else
2052 insn_size = 2;
2053
2054 /* start-sanitize-v850e */
2055 /* Special case: 32 bit MOV */
2056 if ((insn & 0xffe0) == 0x0620)
2057 insn_size = 2;
2058 /* end-sanitize-v850e */
2059
2060 f = frag_more (insn_size);
2061
2062 md_number_to_chars (f, insn, insn_size);
2063
2064 if (extra_data_after_insn)
2065 {
2066 f = frag_more (extra_data_len);
2067
2068 md_number_to_chars (f, extra_data, extra_data_len);
2069
2070 extra_data_after_insn = false;
2071 }
2072 }
2073
2074 /* Create any fixups. At this point we do not use a
2075 bfd_reloc_code_real_type, but instead just use the
2076 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2077 handle fixups for any operand type, although that is admittedly
2078 not a very exciting feature. We pick a BFD reloc type in
2079 md_apply_fix. */
2080 for (i = 0; i < fc; i++)
2081 {
2082 const struct v850_operand * operand;
2083 bfd_reloc_code_real_type reloc;
2084
2085 operand = & v850_operands[ fixups[i].opindex ];
2086
2087 reloc = fixups[i].reloc;
2088
2089 if (reloc != BFD_RELOC_UNUSED)
2090 {
2091 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
2092 int size;
2093 int address;
2094 fixS * fixP;
2095
2096 if (!reloc_howto)
2097 abort();
2098
2099 size = bfd_get_reloc_size (reloc_howto);
2100
2101 if (size != 2 && size != 4) /* XXX this will abort on an R_V850_8 reloc - is this reloc actually used ? */
2102 abort();
2103
2104 address = (f - frag_now->fr_literal) + insn_size - size;
2105
2106 if (reloc == BFD_RELOC_32)
2107 {
2108 address += 2;
2109 }
2110
2111 fixP = fix_new_exp (frag_now, address, size,
2112 & fixups[i].exp,
2113 reloc_howto->pc_relative,
2114 reloc);
2115
2116 switch (reloc)
2117 {
2118 case BFD_RELOC_LO16:
2119 case BFD_RELOC_HI16:
2120 case BFD_RELOC_HI16_S:
2121 fixP->fx_no_overflow = 1;
2122 break;
2123 }
2124 }
2125 else
2126 {
2127 fix_new_exp (
2128 frag_now,
2129 f - frag_now->fr_literal, 4,
2130 & fixups[i].exp,
2131 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2132 (bfd_reloc_code_real_type) (fixups[i].opindex + (int) BFD_RELOC_UNUSED)
2133 );
2134 }
2135 }
2136
2137 input_line_pointer = saved_input_line_pointer;
2138 }
2139
2140
2141 /* If while processing a fixup, a reloc really needs to be created */
2142 /* then it is done here. */
2143
2144 arelent *
2145 tc_gen_reloc (seg, fixp)
2146 asection * seg;
2147 fixS * fixp;
2148 {
2149 arelent * reloc;
2150
2151 reloc = (arelent *) xmalloc (sizeof (arelent));
2152 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
2153 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2154 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
2155
2156 if (reloc->howto == (reloc_howto_type *) NULL)
2157 {
2158 as_bad_where (fixp->fx_file, fixp->fx_line,
2159 "reloc %d not supported by object file format", (int)fixp->fx_r_type);
2160
2161 xfree (reloc);
2162
2163 return NULL;
2164 }
2165
2166 reloc->addend = fixp->fx_addnumber;
2167
2168 return reloc;
2169 }
2170
2171 /* Assume everything will fit in two bytes, then expand as necessary. */
2172 int
2173 md_estimate_size_before_relax (fragp, seg)
2174 fragS * fragp;
2175 asection * seg;
2176 {
2177 if (fragp->fr_subtype == 0)
2178 fragp->fr_var = 4;
2179 else if (fragp->fr_subtype == 2)
2180 fragp->fr_var = 2;
2181 else
2182 abort ();
2183 return 2;
2184 }
2185
2186 long
2187 md_pcrel_from (fixp)
2188 fixS * fixp;
2189 {
2190 /* If the symbol is undefined, or in a section other than our own,
2191 then let the linker figure it out. */
2192 if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
2193 {
2194 /* The symbol is undefined. Let the linker figure it out. */
2195 return 0;
2196 }
2197 return fixp->fx_frag->fr_address + fixp->fx_where;
2198 }
2199
2200 int
2201 md_apply_fix3 (fixp, valuep, seg)
2202 fixS * fixp;
2203 valueT * valuep;
2204 segT seg;
2205 {
2206 valueT value;
2207 char * where;
2208
2209 if (fixp->fx_addsy == (symbolS *) NULL)
2210 {
2211 value = * valuep;
2212 fixp->fx_done = 1;
2213 }
2214 else if (fixp->fx_pcrel)
2215 value = * valuep;
2216 else
2217 {
2218 value = fixp->fx_offset;
2219 if (fixp->fx_subsy != (symbolS *) NULL)
2220 {
2221 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
2222 value -= S_GET_VALUE (fixp->fx_subsy);
2223 else
2224 {
2225 /* We don't actually support subtracting a symbol. */
2226 as_bad_where (fixp->fx_file, fixp->fx_line,
2227 "expression too complex");
2228 }
2229 }
2230 }
2231
2232 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
2233 {
2234 int opindex;
2235 const struct v850_operand * operand;
2236 unsigned long insn;
2237
2238 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
2239 operand = & v850_operands[ opindex ];
2240
2241 /* Fetch the instruction, insert the fully resolved operand
2242 value, and stuff the instruction back again.
2243
2244 Note the instruction has been stored in little endian
2245 format! */
2246 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2247
2248 insn = bfd_getl32 ((unsigned char *) where);
2249 insn = v850_insert_operand (insn, operand, (offsetT) value,
2250 fixp->fx_file, fixp->fx_line, NULL);
2251 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
2252
2253 if (fixp->fx_done)
2254 {
2255 /* Nothing else to do here. */
2256 return 1;
2257 }
2258
2259 /* Determine a BFD reloc value based on the operand information.
2260 We are only prepared to turn a few of the operands into relocs. */
2261
2262 if (operand->bits == 22)
2263 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
2264 else if (operand->bits == 9)
2265 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
2266 else
2267 {
2268 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2269
2270 as_bad_where(fixp->fx_file, fixp->fx_line,
2271 "unresolved expression that must be resolved");
2272 fixp->fx_done = 1;
2273 return 1;
2274 }
2275 }
2276 else if (fixp->fx_done)
2277 {
2278 /* We still have to insert the value into memory! */
2279 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2280
2281 if (fixp->fx_size == 1)
2282 *where = value & 0xff;
2283 else if (fixp->fx_size == 2)
2284 bfd_putl16 (value & 0xffff, (unsigned char *) where);
2285 else if (fixp->fx_size == 4)
2286 bfd_putl32 (value, (unsigned char *) where);
2287 }
2288
2289 fixp->fx_addnumber = value;
2290 return 1;
2291 }
2292
2293 \f
2294 /* Parse a cons expression. We have to handle hi(), lo(), etc
2295 on the v850. */
2296 void
2297 parse_cons_expression_v850 (exp)
2298 expressionS *exp;
2299 {
2300 /* See if there's a reloc prefix like hi() we have to handle. */
2301 hold_cons_reloc = v850_reloc_prefix (NULL);
2302
2303 /* Do normal expression parsing. */
2304 expression (exp);
2305 }
2306
2307 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2308 found a reloc prefix, then we use that reloc, else we choose an
2309 appropriate one based on the size of the expression. */
2310 void
2311 cons_fix_new_v850 (frag, where, size, exp)
2312 fragS *frag;
2313 int where;
2314 int size;
2315 expressionS *exp;
2316 {
2317 if (hold_cons_reloc == BFD_RELOC_UNUSED)
2318 {
2319 if (size == 4)
2320 hold_cons_reloc = BFD_RELOC_32;
2321 if (size == 2)
2322 hold_cons_reloc = BFD_RELOC_16;
2323 if (size == 1)
2324 hold_cons_reloc = BFD_RELOC_8;
2325 }
2326
2327 if (exp != NULL)
2328 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
2329 else
2330 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);
2331 }