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[deliverable/binutils-gdb.git] / gas / config / tc-v850.c
1 /* tc-v850.c -- Assembler code for the NEC V850
2 Copyright (C) 1996, 1997, 1998 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,
685 name, FALSE);
686
687 * input_line_pointer = c; /* put back the delimiting char */
688
689 /* look to see if it's in the register table */
690 if (reg_number >= 0)
691 {
692 expressionP->X_op = O_register;
693 expressionP->X_add_number = reg_number;
694
695 /* make the rest nice */
696 expressionP->X_add_symbol = NULL;
697 expressionP->X_op_symbol = NULL;
698
699 return true;
700 }
701 else
702 {
703 /* reset the line as if we had not done anything */
704 input_line_pointer = start;
705
706 return false;
707 }
708 }
709
710 /* Summary of system_register_name().
711 *
712 * in: Input_line_pointer points to 1st char of operand.
713 * expressionP points to an expression structure to be filled in.
714 * accept_numbers is true iff numerical register names may be used.
715 * start-sanitize-v850e
716 * accept_list_names is true iff the special names PS and SR may be
717 * accepted.
718 * end-sanitize-v850e
719 *
720 * out: A expressionS structure in expressionP.
721 * The operand may have been a register: in this case, X_op == O_register,
722 * X_add_number is set to the register number, and truth is returned.
723 * Input_line_pointer->(next non-blank) char after operand, or is in
724 * its original state.
725 */
726 static boolean
727 system_register_name (expressionP, accept_numbers
728 /* start-sanitize-v850e */
729 , accept_list_names
730 /* end-sanitize-v850e */
731 )
732 expressionS * expressionP;
733 boolean accept_numbers;
734 /* start-sanitize-v850e */
735 boolean accept_list_names;
736 /* end-sanitize-v850e */
737 {
738 int reg_number;
739 char * name;
740 char * start;
741 char c;
742
743 /* Find the spelling of the operand */
744 start = name = input_line_pointer;
745
746 c = get_symbol_end ();
747 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name,
748 accept_numbers);
749
750 * input_line_pointer = c; /* put back the delimiting char */
751
752 if (reg_number < 0
753 && accept_numbers)
754 {
755 input_line_pointer = start; /* reset input_line pointer */
756
757 if (isdigit (* input_line_pointer))
758 {
759 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
760
761 /* Make sure that the register number is allowable. */
762 if ( reg_number < 0
763 || reg_number > 5
764 /* start-sanitize-v850e */
765 && reg_number < 16
766 || reg_number > 20
767 /* end-sanitize-v850e */
768 )
769 {
770 reg_number = -1;
771 }
772 }
773 /* start-sanitize-v850e */
774 else if (accept_list_names)
775 {
776 c = get_symbol_end ();
777 reg_number = reg_name_search (system_list_registers,
778 SYSREGLIST_NAME_CNT, name, FALSE);
779
780 * input_line_pointer = c; /* put back the delimiting char */
781 }
782 /* end-sanitize-v850e */
783 }
784
785 /* look to see if it's in the register table */
786 if (reg_number >= 0)
787 {
788 expressionP->X_op = O_register;
789 expressionP->X_add_number = reg_number;
790
791 /* make the rest nice */
792 expressionP->X_add_symbol = NULL;
793 expressionP->X_op_symbol = NULL;
794
795 return true;
796 }
797 else
798 {
799 /* reset the line as if we had not done anything */
800 input_line_pointer = start;
801
802 return false;
803 }
804 }
805
806 /* Summary of cc_name().
807 *
808 * in: Input_line_pointer points to 1st char of operand.
809 *
810 * out: A expressionS.
811 * The operand may have been a register: in this case, X_op == O_register,
812 * X_add_number is set to the register number, and truth is returned.
813 * Input_line_pointer->(next non-blank) char after operand, or is in
814 * its original state.
815 */
816 static boolean
817 cc_name (expressionP)
818 expressionS * expressionP;
819 {
820 int reg_number;
821 char * name;
822 char * start;
823 char c;
824
825 /* Find the spelling of the operand */
826 start = name = input_line_pointer;
827
828 c = get_symbol_end ();
829 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE);
830
831 * input_line_pointer = c; /* put back the delimiting char */
832
833 /* look to see if it's in the register table */
834 if (reg_number >= 0)
835 {
836 expressionP->X_op = O_constant;
837 expressionP->X_add_number = reg_number;
838
839 /* make the rest nice */
840 expressionP->X_add_symbol = NULL;
841 expressionP->X_op_symbol = NULL;
842
843 return true;
844 }
845 else
846 {
847 /* reset the line as if we had not done anything */
848 input_line_pointer = start;
849
850 return false;
851 }
852 }
853
854 static void
855 skip_white_space (void)
856 {
857 while ( * input_line_pointer == ' '
858 || * input_line_pointer == '\t')
859 ++ input_line_pointer;
860 }
861
862 /* start-sanitize-v850e */
863 /* Summary of parse_register_list ().
864 *
865 * in: Input_line_pointer points to 1st char of a list of registers.
866 * insn is the partially constructed instruction.
867 * operand is the operand being inserted.
868 *
869 * out: NULL if the parse completed successfully, otherwise a
870 * pointer to an error message is returned. If the parse
871 * completes the correct bit fields in the instruction
872 * will be filled in.
873 *
874 * Parses register lists with the syntax:
875 *
876 * { rX }
877 * { rX, rY }
878 * { rX - rY }
879 * { rX - rY, rZ }
880 * etc
881 *
882 * and also parses constant epxressions whoes bits indicate the
883 * registers in the lists. The LSB in the expression refers to
884 * the lowest numbered permissable register in the register list,
885 * and so on upwards. System registers are considered to be very
886 * high numbers.
887 *
888 */
889 static char *
890 parse_register_list
891 (
892 unsigned long * insn,
893 const struct v850_operand * operand
894 )
895 {
896 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 };
897 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 };
898 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 };
899 int * regs;
900 expressionS exp;
901
902
903 /* Select a register array to parse. */
904 switch (operand->shift)
905 {
906 case 0xffe00001: regs = type1_regs; break;
907 case 0xfff8000f: regs = type2_regs; break;
908 case 0xfff8001f: regs = type3_regs; break;
909 default:
910 as_bad (_("unknown operand shift: %x\n"), operand->shift );
911 return _("internal failure in parse_register_list");
912 }
913
914 skip_white_space();
915
916 /* If the expression starts with a curly brace it is a register list.
917 Otherwise it is a constant expression, whoes bits indicate which
918 registers are to be included in the list. */
919
920 if (* input_line_pointer != '{')
921 {
922 int bits;
923 int reg;
924 int i;
925
926 expression (& exp);
927
928 if (exp.X_op != O_constant)
929 return "constant expression or register list expected";
930
931 if (regs == type1_regs)
932 {
933 if (exp.X_add_number & 0xFFFFF000)
934 return "high bits set in register list expression";
935
936 for (reg = 20; reg < 32; reg ++)
937 if (exp.X_add_number & (1 << (reg - 20)))
938 {
939 for (i = 0; i < 32; i++)
940 if (regs[i] == reg)
941 * insn |= (1 << i);
942 }
943 }
944 else if (regs == type2_regs)
945 {
946 if (exp.X_add_number & 0xFFFE0000)
947 return "high bits set in register list expression";
948
949 for (reg = 1; reg < 16; reg ++)
950 if (exp.X_add_number & (1 << (reg - 1)))
951 {
952 for (i = 0; i < 32; i++)
953 if (regs[i] == reg)
954 * insn |= (1 << i);
955 }
956
957 if (exp.X_add_number & (1 << 15))
958 * insn |= (1 << 3);
959
960 if (exp.X_add_number & (1 << 16))
961 * insn |= (1 << 19);
962 }
963 else /* regs == type3_regs */
964 {
965 if (exp.X_add_number & 0xFFFE0000)
966 return "high bits set in register list expression";
967
968 for (reg = 16; reg < 32; reg ++)
969 if (exp.X_add_number & (1 << (reg - 16)))
970 {
971 for (i = 0; i < 32; i++)
972 if (regs[i] == reg)
973 * insn |= (1 << i);
974 }
975
976 if (exp.X_add_number & (1 << 16))
977 * insn |= (1 << 19);
978 }
979
980 return NULL;
981 }
982
983 input_line_pointer ++;
984
985 /* Parse the register list until a terminator (closing curly brace or
986 new-line) is found. */
987 for (;;)
988 {
989 if (register_name (& exp))
990 {
991 int i;
992
993 /* Locate the given register in the list, and if it is there,
994 insert the corresponding bit into the instruction. */
995 for (i = 0; i < 32; i++)
996 {
997 if (regs[ i ] == exp.X_add_number)
998 {
999 * insn |= (1 << i);
1000 break;
1001 }
1002 }
1003
1004 if (i == 32)
1005 {
1006 return _("illegal register included in list");
1007 }
1008 }
1009 else if (system_register_name (& exp, true, true))
1010 {
1011 if (regs == type1_regs)
1012 {
1013 return _("system registers cannot be included in list");
1014 }
1015 else if (exp.X_add_number == 5)
1016 {
1017 if (regs == type2_regs)
1018 return _("PSW cannot be included in list");
1019 else
1020 * insn |= 0x8;
1021 }
1022 else if (exp.X_add_number < 4)
1023 * insn |= 0x80000;
1024 else
1025 return _("High value system registers cannot be included in list");
1026 }
1027 else if (* input_line_pointer == '}')
1028 {
1029 input_line_pointer ++;
1030 break;
1031 }
1032 else if (* input_line_pointer == ',')
1033 {
1034 input_line_pointer ++;
1035 continue;
1036 }
1037 else if (* input_line_pointer == '-')
1038 {
1039 /* We have encountered a range of registers: rX - rY */
1040 int j;
1041 expressionS exp2;
1042
1043 /* Skip the dash. */
1044 ++ input_line_pointer;
1045
1046 /* Get the second register in the range. */
1047 if (! register_name (& exp2))
1048 {
1049 return "second register should follow dash in register list";
1050 exp2.X_add_number = exp.X_add_number;
1051 }
1052
1053 /* Add the rest of the registers in the range. */
1054 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
1055 {
1056 int i;
1057
1058 /* Locate the given register in the list, and if it is there,
1059 insert the corresponding bit into the instruction. */
1060 for (i = 0; i < 32; i++)
1061 {
1062 if (regs[ i ] == j)
1063 {
1064 * insn |= (1 << i);
1065 break;
1066 }
1067 }
1068
1069 if (i == 32)
1070 {
1071 return "illegal register included in list";
1072 }
1073 }
1074 }
1075 else
1076 {
1077 break;
1078 }
1079
1080 skip_white_space ();
1081 }
1082
1083 return NULL;
1084 }
1085 /* end-sanitize-v850e */
1086
1087 CONST char * md_shortopts = "m:";
1088
1089 struct option md_longopts[] =
1090 {
1091 {NULL, no_argument, NULL, 0}
1092 };
1093 size_t md_longopts_size = sizeof md_longopts;
1094
1095
1096 void
1097 md_show_usage (stream)
1098 FILE * stream;
1099 {
1100 fprintf (stream, _("V850 options:\n"));
1101 fprintf (stream, _("\t-mwarn-signed-overflow Warn if signed immediate values overflow\n"));
1102 fprintf (stream, _("\t-mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n"));
1103 fprintf (stream, _("\t-mv850 The code is targeted at the v850\n"));
1104 /* start-sanitize-v850e */
1105 fprintf (stream, _("\t-mv850e The code is targeted at the v850e\n"));
1106 fprintf (stream, _("\t-mv850ea The code is targeted at the v850ea\n"));
1107 fprintf (stream, _("\t-mv850any The code is generic, despite any processor specific instructions\n"));
1108 /* end-sanitize-v850e */
1109 }
1110
1111 int
1112 md_parse_option (c, arg)
1113 int c;
1114 char * arg;
1115 {
1116 if (c != 'm')
1117 {
1118 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1119 return 0;
1120 }
1121
1122 if (strcmp (arg, "warn-signed-overflow") == 0)
1123 {
1124 warn_signed_overflows = TRUE;
1125 }
1126 else if (strcmp (arg, "warn-unsigned-overflow") == 0)
1127 {
1128 warn_unsigned_overflows = TRUE;
1129 }
1130 else if (strcmp (arg, "v850") == 0)
1131 {
1132 machine = 0;
1133 processor_mask = PROCESSOR_V850;
1134 }
1135 /* start-sanitize-v850e */
1136 else if (strcmp (arg, "v850e") == 0)
1137 {
1138 machine = bfd_mach_v850e;
1139 processor_mask = PROCESSOR_V850E;
1140 }
1141 else if (strcmp (arg, "v850ea") == 0)
1142 {
1143 machine = bfd_mach_v850ea;
1144 processor_mask = PROCESSOR_V850EA;
1145 }
1146 else if (strcmp (arg, "v850any") == 0)
1147 {
1148 machine = 0; /* Tell the world that this is for any v850 chip. */
1149 processor_mask = PROCESSOR_V850EA; /* But support instructions for the extended versions. */
1150 }
1151 /* end-sanitize-v850e */
1152 else
1153 {
1154 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1155 return 0;
1156 }
1157
1158 return 1;
1159 }
1160
1161 symbolS *
1162 md_undefined_symbol (name)
1163 char * name;
1164 {
1165 return 0;
1166 }
1167
1168 char *
1169 md_atof (type, litp, sizep)
1170 int type;
1171 char * litp;
1172 int * sizep;
1173 {
1174 int prec;
1175 LITTLENUM_TYPE words[4];
1176 char * t;
1177 int i;
1178
1179 switch (type)
1180 {
1181 case 'f':
1182 prec = 2;
1183 break;
1184
1185 case 'd':
1186 prec = 4;
1187 break;
1188
1189 default:
1190 *sizep = 0;
1191 return _("bad call to md_atof");
1192 }
1193
1194 t = atof_ieee (input_line_pointer, type, words);
1195 if (t)
1196 input_line_pointer = t;
1197
1198 *sizep = prec * 2;
1199
1200 for (i = prec - 1; i >= 0; i--)
1201 {
1202 md_number_to_chars (litp, (valueT) words[i], 2);
1203 litp += 2;
1204 }
1205
1206 return NULL;
1207 }
1208
1209
1210 /* Very gross. */
1211 void
1212 md_convert_frag (abfd, sec, fragP)
1213 bfd * abfd;
1214 asection * sec;
1215 fragS * fragP;
1216 {
1217 subseg_change (sec, 0);
1218
1219 /* In range conditional or unconditional branch. */
1220 if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2)
1221 {
1222 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
1223 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
1224 fragP->fr_var = 0;
1225 fragP->fr_fix += 2;
1226 }
1227 /* Out of range conditional branch. Emit a branch around a jump. */
1228 else if (fragP->fr_subtype == 1)
1229 {
1230 unsigned char *buffer =
1231 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
1232
1233 /* Reverse the condition of the first branch. */
1234 buffer[0] ^= 0x08;
1235 /* Mask off all the displacement bits. */
1236 buffer[0] &= 0x8f;
1237 buffer[1] &= 0x07;
1238 /* Now set the displacement bits so that we branch
1239 around the unconditional branch. */
1240 buffer[0] |= 0x30;
1241
1242 /* Now create the unconditional branch + fixup to the final
1243 target. */
1244 md_number_to_chars (buffer + 2, 0x00000780, 4);
1245 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
1246 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int) fragP->fr_opcode
1247 + 1);
1248 fragP->fr_var = 0;
1249 fragP->fr_fix += 6;
1250 }
1251 /* Out of range unconditional branch. Emit a jump. */
1252 else if (fragP->fr_subtype == 3)
1253 {
1254 md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4);
1255 fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
1256 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int) fragP->fr_opcode
1257 + 1);
1258 fragP->fr_var = 0;
1259 fragP->fr_fix += 4;
1260 }
1261 else
1262 abort ();
1263 }
1264
1265 valueT
1266 md_section_align (seg, addr)
1267 asection * seg;
1268 valueT addr;
1269 {
1270 int align = bfd_get_section_alignment (stdoutput, seg);
1271 return ((addr + (1 << align) - 1) & (-1 << align));
1272 }
1273
1274 void
1275 md_begin ()
1276 {
1277 char * prev_name = "";
1278 register const struct v850_opcode * op;
1279 flagword applicable;
1280
1281 /* start-sanitize-v850e */
1282 if (strncmp (TARGET_CPU, "v850ea", 6) == 0)
1283 {
1284 if (machine == -1)
1285 machine = bfd_mach_v850ea;
1286
1287 if (processor_mask == -1)
1288 processor_mask = PROCESSOR_V850EA;
1289 }
1290 else if (strncmp (TARGET_CPU, "v850e", 5) == 0)
1291 {
1292 if (machine == -1)
1293 machine = bfd_mach_v850e;
1294
1295 if (processor_mask == -1)
1296 processor_mask = PROCESSOR_V850E;
1297 }
1298 else
1299 /* end-sanitize-v850e */
1300 if (strncmp (TARGET_CPU, "v850", 4) == 0)
1301 {
1302 if (machine == -1)
1303 machine = 0;
1304
1305 if (processor_mask == -1)
1306 processor_mask = PROCESSOR_V850;
1307 }
1308 else
1309 as_bad (_("Unable to determine default target processor from string: %s"),
1310 TARGET_CPU);
1311
1312 v850_hash = hash_new();
1313
1314 /* Insert unique names into hash table. The V850 instruction set
1315 has many identical opcode names that have different opcodes based
1316 on the operands. This hash table then provides a quick index to
1317 the first opcode with a particular name in the opcode table. */
1318
1319 op = v850_opcodes;
1320 while (op->name)
1321 {
1322 if (strcmp (prev_name, op->name))
1323 {
1324 prev_name = (char *) op->name;
1325 hash_insert (v850_hash, op->name, (char *) op);
1326 }
1327 op++;
1328 }
1329
1330 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
1331
1332 applicable = bfd_applicable_section_flags (stdoutput);
1333
1334 sdata_section = subseg_new (".sdata", 0);
1335 bfd_set_section_flags (stdoutput, sdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1336
1337 tdata_section = subseg_new (".tdata", 0);
1338 bfd_set_section_flags (stdoutput, tdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1339
1340 zdata_section = subseg_new (".zdata", 0);
1341 bfd_set_section_flags (stdoutput, zdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1342
1343 sbss_section = subseg_new (".sbss", 0);
1344 bfd_set_section_flags (stdoutput, sbss_section, applicable & SEC_ALLOC);
1345 seg_info (sbss_section)->bss = 1;
1346
1347 tbss_section = subseg_new (".tbss", 0);
1348 bfd_set_section_flags (stdoutput, tbss_section, applicable & SEC_ALLOC);
1349 seg_info (tbss_section)->bss = 1;
1350
1351 zbss_section = subseg_new (".zbss", 0);
1352 bfd_set_section_flags (stdoutput, zbss_section, applicable & SEC_ALLOC);
1353 seg_info (zbss_section)->bss = 1;
1354
1355 rosdata_section = subseg_new (".rosdata", 0);
1356 bfd_set_section_flags (stdoutput, rosdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1357
1358 rozdata_section = subseg_new (".rozdata", 0);
1359 bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1360
1361 scommon_section = subseg_new (".scommon", 0);
1362 bfd_set_section_flags (stdoutput, scommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1363
1364 zcommon_section = subseg_new (".zcommon", 0);
1365 bfd_set_section_flags (stdoutput, zcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1366
1367 tcommon_section = subseg_new (".tcommon", 0);
1368 bfd_set_section_flags (stdoutput, tcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1369
1370 /* start-sanitize-v850e */
1371 call_table_data_section = subseg_new (".call_table_data", 0);
1372 bfd_set_section_flags (stdoutput, call_table_data_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1373
1374 call_table_text_section = subseg_new (".call_table_text", 0);
1375 bfd_set_section_flags (stdoutput, call_table_text_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE));
1376 /* end-sanitize-v850e */
1377 }
1378
1379
1380 /* start-sanitize-v850e */
1381 static bfd_reloc_code_real_type
1382 handle_ctoff (const struct v850_operand * operand)
1383 {
1384 if (operand == NULL)
1385 return BFD_RELOC_V850_CALLT_16_16_OFFSET;
1386
1387 if ( operand->bits != 6
1388 || operand->shift != 0)
1389 {
1390 as_bad (_("ctoff() relocation used on an instruction which does not support it"));
1391 return BFD_RELOC_64; /* Used to indicate an error condition. */
1392 }
1393
1394 return BFD_RELOC_V850_CALLT_6_7_OFFSET;
1395 }
1396 /* end-sanitize-v850e */
1397
1398 static bfd_reloc_code_real_type
1399 handle_sdaoff (const struct v850_operand * operand)
1400 {
1401 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1402 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1403 /* start-sanitize-v850e */
1404 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1405 /* end-sanitize-v850e */
1406
1407 if ( operand->bits != 16
1408 || operand->shift != 16)
1409 {
1410 as_bad (_("sdaoff() relocation used on an instruction which does not support it"));
1411 return BFD_RELOC_64; /* Used to indicate an error condition. */
1412 }
1413
1414 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1415 }
1416
1417 static bfd_reloc_code_real_type
1418 handle_zdaoff (const struct v850_operand * operand)
1419 {
1420 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1421 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1422 /* start-sanitize-v850e */
1423 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1424 /* end-sanitize-v850e */
1425
1426 if ( operand->bits != 16
1427 || operand->shift != 16)
1428 {
1429 as_bad (_("zdaoff() relocation used on an instruction which does not support it"));
1430 return BFD_RELOC_64; /* Used to indicate an error condition. */
1431 }
1432
1433 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1434 }
1435
1436 static bfd_reloc_code_real_type
1437 handle_tdaoff (const struct v850_operand * operand)
1438 {
1439 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */
1440 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */
1441 /* start-sanitize-v850e */
1442 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */
1443 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */
1444 /* end-sanitize-v850e */
1445 if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
1446
1447 if (operand->bits != 7)
1448 {
1449 as_bad (_("tdaoff() relocation used on an instruction which does not support it"));
1450 return BFD_RELOC_64; /* Used to indicate an error condition. */
1451 }
1452
1453 return operand->insert != NULL
1454 ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */
1455 : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */
1456 }
1457
1458 /* Warning: The code in this function relies upon the definitions
1459 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1460 matching the hard coded values contained herein. */
1461
1462 static bfd_reloc_code_real_type
1463 v850_reloc_prefix (const struct v850_operand * operand)
1464 {
1465 boolean paren_skipped = false;
1466
1467
1468 /* Skip leading opening parenthesis. */
1469 if (* input_line_pointer == '(')
1470 {
1471 ++ input_line_pointer;
1472 paren_skipped = true;
1473 }
1474
1475 #define CHECK_(name, reloc) \
1476 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1477 { \
1478 input_line_pointer += strlen (name); \
1479 return reloc; \
1480 }
1481
1482 CHECK_ ("hi0", BFD_RELOC_HI16);
1483 CHECK_ ("hi", BFD_RELOC_HI16_S);
1484 CHECK_ ("lo", BFD_RELOC_LO16);
1485 CHECK_ ("sdaoff", handle_sdaoff (operand));
1486 CHECK_ ("zdaoff", handle_zdaoff (operand));
1487 CHECK_ ("tdaoff", handle_tdaoff (operand));
1488
1489 /* start-sanitize-v850e */
1490 CHECK_ ("hilo", BFD_RELOC_32);
1491 CHECK_ ("ctoff", handle_ctoff (operand));
1492 /* end-sanitize-v850e */
1493
1494 /* Restore skipped parenthesis. */
1495 if (paren_skipped)
1496 -- input_line_pointer;
1497
1498 return BFD_RELOC_UNUSED;
1499 }
1500
1501 /* Insert an operand value into an instruction. */
1502
1503 static unsigned long
1504 v850_insert_operand (insn, operand, val, file, line, str)
1505 unsigned long insn;
1506 const struct v850_operand * operand;
1507 offsetT val;
1508 char * file;
1509 unsigned int line;
1510 char * str;
1511 {
1512 if (operand->insert)
1513 {
1514 const char * message = NULL;
1515
1516 insn = operand->insert (insn, val, & message);
1517 if (message != NULL)
1518 {
1519 if ((operand->flags & V850_OPERAND_SIGNED)
1520 && ! warn_signed_overflows
1521 && strstr (message, "out of range") != NULL)
1522 {
1523 /* skip warning... */
1524 }
1525 else if ((operand->flags & V850_OPERAND_SIGNED) == 0
1526 && ! warn_unsigned_overflows
1527 && strstr (message, "out of range") != NULL)
1528 {
1529 /* skip warning... */
1530 }
1531 else if (str)
1532 {
1533 if (file == (char *) NULL)
1534 as_warn ("%s: %s", str, message);
1535 else
1536 as_warn_where (file, line, "%s: %s", str, message);
1537 }
1538 else
1539 {
1540 if (file == (char *) NULL)
1541 as_warn (message);
1542 else
1543 as_warn_where (file, line, message);
1544 }
1545 }
1546 }
1547 else
1548 {
1549 if (operand->bits != 32)
1550 {
1551 long min, max;
1552 offsetT test;
1553
1554 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
1555 {
1556 if (! warn_signed_overflows)
1557 max = (1 << operand->bits) - 1;
1558 else
1559 max = (1 << (operand->bits - 1)) - 1;
1560
1561 min = - (1 << (operand->bits - 1));
1562 }
1563 else
1564 {
1565 max = (1 << operand->bits) - 1;
1566
1567 if (! warn_unsigned_overflows)
1568 min = - (1 << (operand->bits - 1));
1569 else
1570 min = 0;
1571 }
1572
1573 if (val < (offsetT) min || val > (offsetT) max)
1574 {
1575 const char * err = "operand out of range (%s not between %ld and %ld)";
1576 char buf[100];
1577
1578 /* Restore min and mix to expected values for decimal ranges. */
1579 if ((operand->flags & V850_OPERAND_SIGNED)
1580 && ! warn_signed_overflows)
1581 max = (1 << (operand->bits - 1)) - 1;
1582
1583 if (! (operand->flags & V850_OPERAND_SIGNED)
1584 && ! warn_unsigned_overflows)
1585 min = 0;
1586
1587 if (str)
1588 {
1589 sprintf (buf, "%s: ", str);
1590
1591 sprint_value (buf + strlen (buf), val);
1592 }
1593 else
1594 sprint_value (buf, val);
1595
1596 if (file == (char *) NULL)
1597 as_warn (err, buf, min, max);
1598 else
1599 as_warn_where (file, line, err, buf, min, max);
1600 }
1601 }
1602
1603 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
1604 }
1605
1606 return insn;
1607 }
1608
1609 \f
1610 static char copy_of_instruction [128];
1611
1612 void
1613 md_assemble (str)
1614 char * str;
1615 {
1616 char * s;
1617 char * start_of_operands;
1618 struct v850_opcode * opcode;
1619 struct v850_opcode * next_opcode;
1620 const unsigned char * opindex_ptr;
1621 int next_opindex;
1622 int relaxable;
1623 unsigned long insn;
1624 unsigned long insn_size;
1625 char * f;
1626 int i;
1627 int match;
1628 boolean extra_data_after_insn = false;
1629 unsigned extra_data_len;
1630 unsigned long extra_data;
1631 char * saved_input_line_pointer;
1632
1633
1634 strncpy (copy_of_instruction, str, sizeof (copy_of_instruction) - 1);
1635
1636 /* Get the opcode. */
1637 for (s = str; *s != '\0' && ! isspace (*s); s++)
1638 continue;
1639
1640 if (*s != '\0')
1641 *s++ = '\0';
1642
1643 /* find the first opcode with the proper name */
1644 opcode = (struct v850_opcode *) hash_find (v850_hash, str);
1645 if (opcode == NULL)
1646 {
1647 as_bad (_("Unrecognized opcode: `%s'"), str);
1648 ignore_rest_of_line ();
1649 return;
1650 }
1651
1652 str = s;
1653 while (isspace (* str))
1654 ++ str;
1655
1656 start_of_operands = str;
1657
1658 saved_input_line_pointer = input_line_pointer;
1659
1660 for (;;)
1661 {
1662 const char * errmsg = NULL;
1663
1664 match = 0;
1665
1666 if ((opcode->processors & processor_mask) == 0)
1667 {
1668 errmsg = _("Target processor does not support this instruction.");
1669 goto error;
1670 }
1671
1672 relaxable = 0;
1673 fc = 0;
1674 next_opindex = 0;
1675 insn = opcode->opcode;
1676 extra_data_after_insn = false;
1677
1678 input_line_pointer = str = start_of_operands;
1679
1680 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr ++)
1681 {
1682 const struct v850_operand * operand;
1683 char * hold;
1684 expressionS ex;
1685 bfd_reloc_code_real_type reloc;
1686
1687 if (next_opindex == 0)
1688 {
1689 operand = & v850_operands[ * opindex_ptr ];
1690 }
1691 else
1692 {
1693 operand = & v850_operands[ next_opindex ];
1694 next_opindex = 0;
1695 }
1696
1697 errmsg = NULL;
1698
1699 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1700 ++ str;
1701
1702 if (operand->flags & V850_OPERAND_RELAX)
1703 relaxable = 1;
1704
1705 /* Gather the operand. */
1706 hold = input_line_pointer;
1707 input_line_pointer = str;
1708
1709 /* lo(), hi(), hi0(), etc... */
1710 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1711 {
1712 /* This is a fake reloc, used to indicate an error condition. */
1713 if (reloc == BFD_RELOC_64)
1714 {
1715 match = 1;
1716 goto error;
1717 }
1718
1719 expression (& ex);
1720
1721 if (ex.X_op == O_constant)
1722 {
1723 switch (reloc)
1724 {
1725 case BFD_RELOC_V850_ZDA_16_16_OFFSET:
1726 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]"
1727 and the like. */
1728 /* Fall through. */
1729
1730 case BFD_RELOC_LO16:
1731 {
1732 /* Truncate, then sign extend the value. */
1733 ex.X_add_number = SEXT16 (ex.X_add_number);
1734 break;
1735 }
1736
1737 case BFD_RELOC_HI16:
1738 {
1739 /* Truncate, then sign extend the value. */
1740 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1741 break;
1742 }
1743
1744 case BFD_RELOC_HI16_S:
1745 {
1746 /* Truncate, then sign extend the value. */
1747 int temp = (ex.X_add_number >> 16) & 0xffff;
1748
1749 temp += (ex.X_add_number >> 15) & 1;
1750
1751 ex.X_add_number = SEXT16 (temp);
1752 break;
1753 }
1754
1755 /* start-sanitize-v850e */
1756 case BFD_RELOC_32:
1757 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1758 {
1759 errmsg = _("immediate operand is too large");
1760 goto error;
1761 }
1762
1763 extra_data_after_insn = true;
1764 extra_data_len = 4;
1765 extra_data = ex.X_add_number;
1766 ex.X_add_number = 0;
1767 break;
1768 /* end-sanitize-v850e */
1769
1770 default:
1771 fprintf (stderr, "reloc: %d\n", reloc);
1772 as_bad (_("AAARG -> unhandled constant reloc"));
1773 break;
1774 }
1775
1776 if (fc > MAX_INSN_FIXUPS)
1777 as_fatal ("too many fixups");
1778
1779 fixups[ fc ].exp = ex;
1780 fixups[ fc ].opindex = * opindex_ptr;
1781 fixups[ fc ].reloc = reloc;
1782 fc++;
1783 }
1784 else
1785 {
1786 /* start-sanitize-v850e */
1787 if (reloc == BFD_RELOC_32)
1788 {
1789 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1790 {
1791 errmsg = _("immediate operand is too large");
1792 goto error;
1793 }
1794
1795 extra_data_after_insn = true;
1796 extra_data_len = 4;
1797 extra_data = ex.X_add_number;
1798 }
1799 /* end-sanitize-v850e */
1800
1801 if (fc > MAX_INSN_FIXUPS)
1802 as_fatal (_("too many fixups"));
1803
1804 fixups[ fc ].exp = ex;
1805 fixups[ fc ].opindex = * opindex_ptr;
1806 fixups[ fc ].reloc = reloc;
1807 fc++;
1808 }
1809 }
1810 else
1811 {
1812 errmsg = NULL;
1813
1814 if ((operand->flags & V850_OPERAND_REG) != 0)
1815 {
1816 if (!register_name (& ex))
1817 {
1818 errmsg = _("invalid register name");
1819 }
1820 else if ((operand->flags & V850_NOT_R0)
1821 && ex.X_add_number == 0)
1822 {
1823 errmsg = _("register r0 cannot be used here");
1824
1825 /* Force an error message to be generated by
1826 skipping over any following potential matches
1827 for this opcode. */
1828 opcode += 3;
1829 }
1830 }
1831 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1832 {
1833 if (!system_register_name (& ex, true
1834 /* start-sanitize-v850e */
1835 , false
1836 /* end-sanitize-v850e */
1837 ))
1838 {
1839 errmsg = _("invalid system register name");
1840 }
1841 }
1842 else if ((operand->flags & V850_OPERAND_EP) != 0)
1843 {
1844 char * start = input_line_pointer;
1845 char c = get_symbol_end ();
1846
1847 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1848 {
1849 /* Put things back the way we found them. */
1850 *input_line_pointer = c;
1851 input_line_pointer = start;
1852 errmsg = _("expected EP register");
1853 goto error;
1854 }
1855
1856 *input_line_pointer = c;
1857 str = input_line_pointer;
1858 input_line_pointer = hold;
1859
1860 while ( *str == ' ' || *str == ',' || *str == '['
1861 || *str == ']')
1862 ++ str;
1863 continue;
1864 }
1865 else if ((operand->flags & V850_OPERAND_CC) != 0)
1866 {
1867 if (!cc_name (& ex))
1868 {
1869 errmsg = _("invalid condition code name");
1870 }
1871 }
1872 /* start-sanitize-v850e */
1873 else if (operand->flags & V850E_PUSH_POP)
1874 {
1875 errmsg = parse_register_list (& insn, operand);
1876
1877 /* The parse_register_list() function has already done
1878 everything, so fake a dummy expression. */
1879 ex.X_op = O_constant;
1880 ex.X_add_number = 0;
1881 }
1882 else if (operand->flags & V850E_IMMEDIATE16)
1883 {
1884 expression (& ex);
1885
1886 if (ex.X_op != O_constant)
1887 errmsg = _("constant expression expected");
1888 else if (ex.X_add_number & 0xffff0000)
1889 {
1890 if (ex.X_add_number & 0xffff)
1891 errmsg = _("constant too big to fit into instruction");
1892 else if ((insn & 0x001fffc0) == 0x00130780)
1893 ex.X_add_number >>= 16;
1894 else
1895 errmsg = _("constant too big to fit into instruction");
1896 }
1897
1898 extra_data_after_insn = true;
1899 extra_data_len = 2;
1900 extra_data = ex.X_add_number;
1901 ex.X_add_number = 0;
1902 }
1903 else if (operand->flags & V850E_IMMEDIATE32)
1904 {
1905 expression (& ex);
1906
1907 if (ex.X_op != O_constant)
1908 errmsg = _("constant expression expected");
1909
1910 extra_data_after_insn = true;
1911 extra_data_len = 4;
1912 extra_data = ex.X_add_number;
1913 ex.X_add_number = 0;
1914 }
1915 /* end-sanitize-v850e */
1916 else if (register_name (& ex)
1917 && (operand->flags & V850_OPERAND_REG) == 0)
1918 {
1919 /* It is possible that an alias has been defined that
1920 matches a register name. For example the code may
1921 include a ".set ZERO, 0" directive, which matches
1922 the register name "zero". Attempt to reparse the
1923 field as an expression, and only complain if we
1924 cannot generate a constant. */
1925
1926 input_line_pointer = str;
1927
1928 expression (& ex);
1929
1930 if (ex.X_op != O_constant)
1931 {
1932 /* If this register is actually occuring too early on
1933 the parsing of the instruction, (because another
1934 field is missing) then report this. */
1935 if (opindex_ptr[1] != 0
1936 && (v850_operands [opindex_ptr [1]].flags & V850_OPERAND_REG))
1937 errmsg = _("syntax error: value is missing before the register name");
1938 else
1939 errmsg = _("syntax error: register not expected");
1940 }
1941 }
1942 else if (system_register_name (& ex, false
1943 /* start-sanitize-v850e */
1944 , false
1945 /* end-sanitize-v850e */
1946 )
1947 && (operand->flags & V850_OPERAND_SRG) == 0)
1948 {
1949 errmsg = _("syntax error: system register not expected");
1950 }
1951 else if (cc_name (&ex)
1952 && (operand->flags & V850_OPERAND_CC) == 0)
1953 {
1954 errmsg = _("syntax error: condition code not expected");
1955 }
1956 else
1957 {
1958 expression (& ex);
1959 /* start-sanitize-v850e */
1960 /* Special case:
1961 If we are assembling a MOV instruction (or a CALLT.... :-)
1962 and the immediate value does not fit into the bits
1963 available then create a fake error so that the next MOV
1964 instruction will be selected. This one has a 32 bit
1965 immediate field. */
1966
1967 if (((insn & 0x07e0) == 0x0200)
1968 && ex.X_op == O_constant
1969 && (ex.X_add_number < (- (1 << (operand->bits - 1))) || ex.X_add_number > ((1 << operand->bits) - 1)))
1970 errmsg = _("immediate operand is too large");
1971 /* end-sanitize-v850e */
1972 }
1973
1974 if (errmsg)
1975 goto error;
1976
1977 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n", insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
1978
1979 switch (ex.X_op)
1980 {
1981 case O_illegal:
1982 errmsg = _("illegal operand");
1983 goto error;
1984 case O_absent:
1985 errmsg = _("missing operand");
1986 goto error;
1987 case O_register:
1988 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
1989 {
1990 errmsg = _("invalid operand");
1991 goto error;
1992 }
1993 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1994 (char *) NULL, 0,
1995 copy_of_instruction);
1996 break;
1997
1998 case O_constant:
1999 insn = v850_insert_operand (insn, operand, ex.X_add_number,
2000 (char *) NULL, 0,
2001 copy_of_instruction);
2002 break;
2003
2004 default:
2005 /* We need to generate a fixup for this expression. */
2006 if (fc >= MAX_INSN_FIXUPS)
2007 as_fatal (_("too many fixups"));
2008
2009 fixups[ fc ].exp = ex;
2010 fixups[ fc ].opindex = * opindex_ptr;
2011 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
2012 ++fc;
2013 break;
2014 }
2015 }
2016
2017 str = input_line_pointer;
2018 input_line_pointer = hold;
2019
2020 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
2021 || *str == ')')
2022 ++str;
2023 }
2024 match = 1;
2025
2026 error:
2027 if (match == 0)
2028 {
2029 next_opcode = opcode + 1;
2030 if (next_opcode->name != NULL
2031 && strcmp (next_opcode->name, opcode->name) == 0)
2032 {
2033 opcode = next_opcode;
2034
2035 /* Skip versions that are not supported by the target
2036 processor. */
2037 if ((opcode->processors & processor_mask) == 0)
2038 goto error;
2039
2040 continue;
2041 }
2042
2043 as_bad ("%s: %s", copy_of_instruction, errmsg);
2044
2045 if (* input_line_pointer == ']')
2046 ++ input_line_pointer;
2047
2048 ignore_rest_of_line ();
2049 input_line_pointer = saved_input_line_pointer;
2050 return;
2051 }
2052 break;
2053 }
2054
2055 while (isspace (*str))
2056 ++str;
2057
2058 if (*str != '\0')
2059 as_bad (_("junk at end of line: `%s'"), str);
2060
2061 input_line_pointer = str;
2062
2063 /* Write out the instruction. */
2064
2065 if (relaxable && fc > 0)
2066 {
2067 insn_size = 2;
2068 fc = 0;
2069
2070 if (!strcmp (opcode->name, "br"))
2071 {
2072 f = frag_var (rs_machine_dependent, 4, 2, 2,
2073 fixups[0].exp.X_add_symbol,
2074 fixups[0].exp.X_add_number,
2075 (char *)fixups[0].opindex);
2076 md_number_to_chars (f, insn, insn_size);
2077 md_number_to_chars (f + 2, 0, 2);
2078 }
2079 else
2080 {
2081 f = frag_var (rs_machine_dependent, 6, 4, 0,
2082 fixups[0].exp.X_add_symbol,
2083 fixups[0].exp.X_add_number,
2084 (char *)fixups[0].opindex);
2085 md_number_to_chars (f, insn, insn_size);
2086 md_number_to_chars (f + 2, 0, 4);
2087 }
2088 }
2089 else
2090 {
2091 /* Four byte insns have an opcode with the two high bits on. */
2092 if ((insn & 0x0600) == 0x0600)
2093 insn_size = 4;
2094 else
2095 insn_size = 2;
2096
2097 /* start-sanitize-v850e */
2098 /* Special case: 32 bit MOV */
2099 if ((insn & 0xffe0) == 0x0620)
2100 insn_size = 2;
2101 /* end-sanitize-v850e */
2102
2103 f = frag_more (insn_size);
2104
2105 md_number_to_chars (f, insn, insn_size);
2106
2107 if (extra_data_after_insn)
2108 {
2109 f = frag_more (extra_data_len);
2110
2111 md_number_to_chars (f, extra_data, extra_data_len);
2112
2113 extra_data_after_insn = false;
2114 }
2115 }
2116
2117 /* Create any fixups. At this point we do not use a
2118 bfd_reloc_code_real_type, but instead just use the
2119 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2120 handle fixups for any operand type, although that is admittedly
2121 not a very exciting feature. We pick a BFD reloc type in
2122 md_apply_fix. */
2123 for (i = 0; i < fc; i++)
2124 {
2125 const struct v850_operand * operand;
2126 bfd_reloc_code_real_type reloc;
2127
2128 operand = & v850_operands[ fixups[i].opindex ];
2129
2130 reloc = fixups[i].reloc;
2131
2132 if (reloc != BFD_RELOC_UNUSED)
2133 {
2134 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput,
2135 reloc);
2136 int size;
2137 int address;
2138 fixS * fixP;
2139
2140 if (!reloc_howto)
2141 abort();
2142
2143 size = bfd_get_reloc_size (reloc_howto);
2144
2145 /* XXX This will abort on an R_V850_8 reloc -
2146 is this reloc actually used ? */
2147 if (size != 2 && size != 4)
2148 abort();
2149
2150 address = (f - frag_now->fr_literal) + insn_size - size;
2151
2152 if (reloc == BFD_RELOC_32)
2153 {
2154 address += 2;
2155 }
2156
2157 fixP = fix_new_exp (frag_now, address, size,
2158 & fixups[i].exp,
2159 reloc_howto->pc_relative,
2160 reloc);
2161
2162 switch (reloc)
2163 {
2164 case BFD_RELOC_LO16:
2165 case BFD_RELOC_HI16:
2166 case BFD_RELOC_HI16_S:
2167 fixP->fx_no_overflow = 1;
2168 break;
2169 }
2170 }
2171 else
2172 {
2173 fix_new_exp (
2174 frag_now,
2175 f - frag_now->fr_literal, 4,
2176 & fixups[i].exp,
2177 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2178 (bfd_reloc_code_real_type) (fixups[i].opindex
2179 + (int) BFD_RELOC_UNUSED)
2180 );
2181 }
2182 }
2183
2184 input_line_pointer = saved_input_line_pointer;
2185 }
2186
2187
2188 /* If while processing a fixup, a reloc really needs to be created */
2189 /* then it is done here. */
2190
2191 arelent *
2192 tc_gen_reloc (seg, fixp)
2193 asection * seg;
2194 fixS * fixp;
2195 {
2196 arelent * reloc;
2197
2198 reloc = (arelent *) xmalloc (sizeof (arelent));
2199 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
2200 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2201 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
2202
2203 if (reloc->howto == (reloc_howto_type *) NULL)
2204 {
2205 as_bad_where (fixp->fx_file, fixp->fx_line,
2206 _("reloc %d not supported by object file format"),
2207 (int)fixp->fx_r_type);
2208
2209 xfree (reloc);
2210
2211 return NULL;
2212 }
2213
2214 reloc->addend = fixp->fx_addnumber;
2215
2216 return reloc;
2217 }
2218
2219 /* Assume everything will fit in two bytes, then expand as necessary. */
2220 int
2221 md_estimate_size_before_relax (fragp, seg)
2222 fragS * fragp;
2223 asection * seg;
2224 {
2225 if (fragp->fr_subtype == 0)
2226 fragp->fr_var = 4;
2227 else if (fragp->fr_subtype == 2)
2228 fragp->fr_var = 2;
2229 else
2230 abort ();
2231 return 2;
2232 }
2233
2234 long
2235 md_pcrel_from (fixp)
2236 fixS * fixp;
2237 {
2238 /* If the symbol is undefined, or in a section other than our own,
2239 then let the linker figure it out. */
2240 if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
2241 {
2242 /* The symbol is undefined. Let the linker figure it out. */
2243 return 0;
2244 }
2245 return fixp->fx_frag->fr_address + fixp->fx_where;
2246 }
2247
2248 int
2249 md_apply_fix3 (fixp, valuep, seg)
2250 fixS * fixp;
2251 valueT * valuep;
2252 segT seg;
2253 {
2254 valueT value;
2255 char * where;
2256
2257 if (fixp->fx_addsy == (symbolS *) NULL)
2258 {
2259 value = * valuep;
2260 fixp->fx_done = 1;
2261 }
2262 else if (fixp->fx_pcrel)
2263 value = * valuep;
2264 else
2265 {
2266 value = fixp->fx_offset;
2267 if (fixp->fx_subsy != (symbolS *) NULL)
2268 {
2269 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
2270 value -= S_GET_VALUE (fixp->fx_subsy);
2271 else
2272 {
2273 /* We don't actually support subtracting a symbol. */
2274 as_bad_where (fixp->fx_file, fixp->fx_line,
2275 _("expression too complex"));
2276 }
2277 }
2278 }
2279
2280 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
2281 {
2282 int opindex;
2283 const struct v850_operand * operand;
2284 unsigned long insn;
2285
2286 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
2287 operand = & v850_operands[ opindex ];
2288
2289 /* Fetch the instruction, insert the fully resolved operand
2290 value, and stuff the instruction back again.
2291
2292 Note the instruction has been stored in little endian
2293 format! */
2294 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2295
2296 insn = bfd_getl32 ((unsigned char *) where);
2297 insn = v850_insert_operand (insn, operand, (offsetT) value,
2298 fixp->fx_file, fixp->fx_line, NULL);
2299 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
2300
2301 if (fixp->fx_done)
2302 {
2303 /* Nothing else to do here. */
2304 return 1;
2305 }
2306
2307 /* Determine a BFD reloc value based on the operand information.
2308 We are only prepared to turn a few of the operands into relocs. */
2309
2310 if (operand->bits == 22)
2311 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
2312 else if (operand->bits == 9)
2313 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
2314 else
2315 {
2316 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2317
2318 as_bad_where(fixp->fx_file, fixp->fx_line,
2319 _("unresolved expression that must be resolved"));
2320 fixp->fx_done = 1;
2321 return 1;
2322 }
2323 }
2324 else if (fixp->fx_done)
2325 {
2326 /* We still have to insert the value into memory! */
2327 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2328
2329 if (fixp->fx_size == 1)
2330 *where = value & 0xff;
2331 else if (fixp->fx_size == 2)
2332 bfd_putl16 (value & 0xffff, (unsigned char *) where);
2333 else if (fixp->fx_size == 4)
2334 bfd_putl32 (value, (unsigned char *) where);
2335 }
2336
2337 fixp->fx_addnumber = value;
2338 return 1;
2339 }
2340
2341 \f
2342 /* Parse a cons expression. We have to handle hi(), lo(), etc
2343 on the v850. */
2344 void
2345 parse_cons_expression_v850 (exp)
2346 expressionS *exp;
2347 {
2348 /* See if there's a reloc prefix like hi() we have to handle. */
2349 hold_cons_reloc = v850_reloc_prefix (NULL);
2350
2351 /* Do normal expression parsing. */
2352 expression (exp);
2353 }
2354
2355 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2356 found a reloc prefix, then we use that reloc, else we choose an
2357 appropriate one based on the size of the expression. */
2358 void
2359 cons_fix_new_v850 (frag, where, size, exp)
2360 fragS *frag;
2361 int where;
2362 int size;
2363 expressionS *exp;
2364 {
2365 if (hold_cons_reloc == BFD_RELOC_UNUSED)
2366 {
2367 if (size == 4)
2368 hold_cons_reloc = BFD_RELOC_32;
2369 if (size == 2)
2370 hold_cons_reloc = BFD_RELOC_16;
2371 if (size == 1)
2372 hold_cons_reloc = BFD_RELOC_8;
2373 }
2374
2375 if (exp != NULL)
2376 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
2377 else
2378 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);
2379 }
GDB Binutils - Deliverables
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