1 /* tc-v850.c -- Assembler code for the NEC V850
2 Copyright (C) 1996, 1997, 1998 Free Software Foundation.
4 This file is part of GAS, the GNU Assembler.
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)
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.
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. */
25 #include "opcode/v850.h"
31 /* sign-extend a 16-bit number */
32 #define SEXT16(x) ((((x) & 0xffff) ^ (~ 0x7fff)) + 0x8000)
34 /* Temporarily holds the reloc in a cons expression. */
35 static bfd_reloc_code_real_type hold_cons_reloc;
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;
41 /* Indicates the target BFD machine number. */
42 static int machine = -1;
44 /* Indicates the target processor(s) for the assemble. */
45 static unsigned int processor_mask = -1;
48 /* Structure to hold information about predefined registers. */
55 /* Generic assembler global variables which must be defined by all targets. */
57 /* Characters which always start a comment. */
58 const char comment_chars[] = "#";
60 /* Characters which start a comment at the beginning of a line. */
61 const char line_comment_chars[] = ";#";
63 /* Characters which may be used to separate multiple commands on a
65 const char line_separator_chars[] = ";";
67 /* Characters which are used to indicate an exponent in a floating
69 const char EXP_CHARS[] = "eE";
71 /* Characters which mean that a number is a floating point constant,
73 const char FLT_CHARS[] = "dD";
76 const relax_typeS md_relax_table[] =
78 /* Conditional branches. */
80 {0x1fffff, -0x200000, 6, 0},
81 /* Unconditional branches. */
83 {0x1fffff, -0x200000, 4, 0},
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 */
104 #define MAX_INSN_FIXUPS (5)
109 bfd_reloc_code_real_type reloc;
112 struct v850_fixup fixups [MAX_INSN_FIXUPS];
117 v850_sdata (int ignore)
119 obj_elf_section_change_hook();
121 subseg_set (sdata_section, (subsegT) get_absolute_expression ());
123 demand_empty_rest_of_line ();
127 v850_tdata (int ignore)
129 obj_elf_section_change_hook();
131 subseg_set (tdata_section, (subsegT) get_absolute_expression ());
133 demand_empty_rest_of_line ();
137 v850_zdata (int ignore)
139 obj_elf_section_change_hook();
141 subseg_set (zdata_section, (subsegT) get_absolute_expression ());
143 demand_empty_rest_of_line ();
147 v850_sbss (int ignore)
149 obj_elf_section_change_hook();
151 subseg_set (sbss_section, (subsegT) get_absolute_expression ());
153 demand_empty_rest_of_line ();
157 v850_tbss (int ignore)
159 obj_elf_section_change_hook();
161 subseg_set (tbss_section, (subsegT) get_absolute_expression ());
163 demand_empty_rest_of_line ();
167 v850_zbss (int ignore)
169 obj_elf_section_change_hook();
171 subseg_set (zbss_section, (subsegT) get_absolute_expression ());
173 demand_empty_rest_of_line ();
177 v850_rosdata (int ignore)
179 obj_elf_section_change_hook();
181 subseg_set (rosdata_section, (subsegT) get_absolute_expression ());
183 demand_empty_rest_of_line ();
187 v850_rozdata (int ignore)
189 obj_elf_section_change_hook();
191 subseg_set (rozdata_section, (subsegT) get_absolute_expression ());
193 demand_empty_rest_of_line ();
196 /* start-sanitize-v850e */
198 v850_call_table_data (int ignore)
200 obj_elf_section_change_hook();
202 subseg_set (call_table_data_section, (subsegT) get_absolute_expression ());
204 demand_empty_rest_of_line ();
208 v850_call_table_text (int ignore)
210 obj_elf_section_change_hook();
212 subseg_set (call_table_text_section, (subsegT) get_absolute_expression ());
214 demand_empty_rest_of_line ();
216 /* end-sanitize-v850e */
219 v850_bss (int ignore)
221 register int temp = get_absolute_expression ();
223 obj_elf_section_change_hook();
225 subseg_set (bss_section, (subsegT) temp);
227 demand_empty_rest_of_line ();
231 v850_offset (int ignore)
233 int temp = get_absolute_expression ();
235 temp -= frag_now_fix();
238 (void) frag_more (temp);
240 demand_empty_rest_of_line ();
243 /* Copied from obj_elf_common() in gas/config/obj-elf.c */
256 name = input_line_pointer;
257 c = get_symbol_end ();
258 /* just after name is now '\0' */
259 p = input_line_pointer;
262 if (*input_line_pointer != ',')
264 as_bad (_("Expected comma after symbol-name"));
265 ignore_rest_of_line ();
268 input_line_pointer++; /* skip ',' */
269 if ((temp = get_absolute_expression ()) < 0)
271 as_bad (_(".COMMon length (%d.) <0! Ignored."), temp);
272 ignore_rest_of_line ();
277 symbolP = symbol_find_or_make (name);
279 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
281 as_bad (_("Ignoring attempt to re-define symbol"));
282 ignore_rest_of_line ();
285 if (S_GET_VALUE (symbolP) != 0)
287 if (S_GET_VALUE (symbolP) != size)
289 /* xgettext:c-format */
290 as_warn (_("Length of .comm \"%s\" is already %ld. Not changed to %d."),
291 S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size);
294 know (symbolP->sy_frag == &zero_address_frag);
295 if (*input_line_pointer != ',')
300 input_line_pointer++;
303 if (! have_align || *input_line_pointer != '"')
309 temp = get_absolute_expression ();
313 as_warn (_("Common alignment negative; 0 assumed"));
325 old_subsec = now_subseg;
328 /* convert to a power of 2 alignment */
329 for (align = 0; (temp & 1) == 0; temp >>= 1, ++align);
332 as_bad (_("Common alignment not a power of 2"));
333 ignore_rest_of_line ();
342 record_alignment (sbss_section, align);
343 obj_elf_section_change_hook();
344 subseg_set (sbss_section, 0);
348 record_alignment (zbss_section, align);
349 obj_elf_section_change_hook();
350 subseg_set (zbss_section, 0);
354 record_alignment (tbss_section, align);
355 obj_elf_section_change_hook();
356 subseg_set (tbss_section, 0);
364 frag_align (align, 0, 0);
369 if (S_GET_SEGMENT (symbolP) == sbss_section)
370 symbolP->sy_frag->fr_symbol = 0;
374 if (S_GET_SEGMENT (symbolP) == zbss_section)
375 symbolP->sy_frag->fr_symbol = 0;
379 if (S_GET_SEGMENT (symbolP) == tbss_section)
380 symbolP->sy_frag->fr_symbol = 0;
387 symbolP->sy_frag = frag_now;
388 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
389 (offsetT) size, (char *) 0);
391 S_SET_SIZE (symbolP, size);
395 case AREA_SDA: S_SET_SEGMENT (symbolP, sbss_section); break;
396 case AREA_ZDA: S_SET_SEGMENT (symbolP, zbss_section); break;
397 case AREA_TDA: S_SET_SEGMENT (symbolP, tbss_section); break;
402 S_CLEAR_EXTERNAL (symbolP);
403 obj_elf_section_change_hook();
404 subseg_set (old_sec, old_subsec);
409 S_SET_VALUE (symbolP, (valueT) size);
410 S_SET_ALIGN (symbolP, temp);
411 S_SET_EXTERNAL (symbolP);
415 case AREA_SDA: S_SET_SEGMENT (symbolP, scommon_section); break;
416 case AREA_ZDA: S_SET_SEGMENT (symbolP, zcommon_section); break;
417 case AREA_TDA: S_SET_SEGMENT (symbolP, tcommon_section); break;
425 input_line_pointer++;
426 /* @@ Some use the dot, some don't. Can we get some consistency?? */
427 if (*input_line_pointer == '.')
428 input_line_pointer++;
429 /* @@ Some say data, some say bss. */
430 if (strncmp (input_line_pointer, "bss\"", 4)
431 && strncmp (input_line_pointer, "data\"", 5))
433 while (*--input_line_pointer != '"')
435 input_line_pointer--;
436 goto bad_common_segment;
438 while (*input_line_pointer++ != '"')
440 goto allocate_common;
443 symbolP->bsym->flags |= BSF_OBJECT;
445 demand_empty_rest_of_line ();
450 p = input_line_pointer;
451 while (*p && *p != '\n')
455 as_bad (_("bad .common segment %s"), input_line_pointer + 1);
457 input_line_pointer = p;
458 ignore_rest_of_line ();
464 set_machine (int number)
467 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
471 case 0: processor_mask = PROCESSOR_V850; break;
472 /* start-sanitize-v850e */
473 case bfd_mach_v850e: processor_mask = PROCESSOR_V850E; break;
474 case bfd_mach_v850ea: processor_mask = PROCESSOR_V850EA; break;
475 /* end-sanitize-v850e */
479 /* The target specific pseudo-ops which we support. */
480 const pseudo_typeS md_pseudo_table[] =
482 {"sdata", v850_sdata, 0},
483 {"tdata", v850_tdata, 0},
484 {"zdata", v850_zdata, 0},
485 {"sbss", v850_sbss, 0},
486 {"tbss", v850_tbss, 0},
487 {"zbss", v850_zbss, 0},
488 {"rosdata", v850_rosdata, 0},
489 {"rozdata", v850_rozdata, 0},
490 {"bss", v850_bss, 0},
491 {"offset", v850_offset, 0},
493 {"zcomm", v850_comm, AREA_ZDA},
494 {"scomm", v850_comm, AREA_SDA},
495 {"tcomm", v850_comm, AREA_TDA},
496 {"v850", set_machine, 0},
497 /* start-sanitize-v850e */
498 {"call_table_data", v850_call_table_data, 0},
499 {"call_table_text", v850_call_table_text, 0},
500 {"v850e", set_machine, bfd_mach_v850e},
501 {"v850ea", set_machine, bfd_mach_v850ea},
502 /* end-sanitize-v850e */
506 /* Opcode hash table. */
507 static struct hash_control *v850_hash;
509 /* This table is sorted. Suitable for searching by a binary search. */
510 static const struct reg_name pre_defined_registers[] =
512 { "ep", 30 }, /* ep - element ptr */
513 { "gp", 4 }, /* gp - global ptr */
514 { "hp", 2 }, /* hp - handler stack ptr */
515 { "lp", 31 }, /* lp - link ptr */
548 { "sp", 3 }, /* sp - stack ptr */
549 { "tp", 5 }, /* tp - text ptr */
552 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
555 static const struct reg_name system_registers[] =
557 /* start-sanitize-v850e */
563 /* end-sanitize-v850e */
571 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
573 /* start-sanitize-v850e */
574 static const struct reg_name system_list_registers[] =
579 #define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name))
580 /* end-sanitize-v850e */
582 static const struct reg_name cc_names[] =
607 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
609 /* reg_name_search does a binary search of the given register table
610 to see if "name" is a valid regiter name. Returns the register
611 number from the array on success, or -1 on failure. */
614 reg_name_search (regs, regcount, name, accept_numbers)
615 const struct reg_name * regs;
618 boolean accept_numbers;
620 int middle, low, high;
624 /* If the register name is a symbol, then evaluate it. */
625 if ((symbolP = symbol_find (name)) != NULL)
627 /* If the symbol is an alias for another name then use that.
628 If the symbol is an alias for a number, then return the number. */
629 if (symbolP->sy_value.X_op == O_symbol)
631 name = S_GET_NAME (symbolP->sy_value.X_add_symbol);
633 else if (accept_numbers)
635 int reg = S_GET_VALUE (symbolP);
637 if (reg >= 0 && reg <= 31)
647 middle = (low + high) / 2;
648 cmp = strcasecmp (name, regs[middle].name);
654 return regs[middle].value;
661 /* Summary of register_name().
663 * in: Input_line_pointer points to 1st char of operand.
665 * out: A expressionS.
666 * The operand may have been a register: in this case, X_op == O_register,
667 * X_add_number is set to the register number, and truth is returned.
668 * Input_line_pointer->(next non-blank) char after operand, or is in
669 * its original state.
672 register_name (expressionP)
673 expressionS * expressionP;
680 /* Find the spelling of the operand */
681 start = name = input_line_pointer;
683 c = get_symbol_end ();
685 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT,
688 * input_line_pointer = c; /* put back the delimiting char */
690 /* look to see if it's in the register table */
693 expressionP->X_op = O_register;
694 expressionP->X_add_number = reg_number;
696 /* make the rest nice */
697 expressionP->X_add_symbol = NULL;
698 expressionP->X_op_symbol = NULL;
704 /* reset the line as if we had not done anything */
705 input_line_pointer = start;
711 /* Summary of system_register_name().
713 * in: Input_line_pointer points to 1st char of operand.
714 * expressionP points to an expression structure to be filled in.
715 * accept_numbers is true iff numerical register names may be used.
716 * start-sanitize-v850e
717 * accept_list_names is true iff the special names PS and SR may be
721 * out: A expressionS structure in expressionP.
722 * The operand may have been a register: in this case, X_op == O_register,
723 * X_add_number is set to the register number, and truth is returned.
724 * Input_line_pointer->(next non-blank) char after operand, or is in
725 * its original state.
728 system_register_name (expressionP, accept_numbers
729 /* start-sanitize-v850e */
731 /* end-sanitize-v850e */
733 expressionS * expressionP;
734 boolean accept_numbers;
735 /* start-sanitize-v850e */
736 boolean accept_list_names;
737 /* end-sanitize-v850e */
744 /* Find the spelling of the operand */
745 start = name = input_line_pointer;
747 c = get_symbol_end ();
748 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name,
751 * input_line_pointer = c; /* put back the delimiting char */
756 input_line_pointer = start; /* reset input_line pointer */
758 if (isdigit (* input_line_pointer))
760 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
762 /* Make sure that the register number is allowable. */
765 /* start-sanitize-v850e */
768 /* end-sanitize-v850e */
774 /* start-sanitize-v850e */
775 else if (accept_list_names)
777 c = get_symbol_end ();
778 reg_number = reg_name_search (system_list_registers,
779 SYSREGLIST_NAME_CNT, name, FALSE);
781 * input_line_pointer = c; /* put back the delimiting char */
783 /* end-sanitize-v850e */
786 /* look to see if it's in the register table */
789 expressionP->X_op = O_register;
790 expressionP->X_add_number = reg_number;
792 /* make the rest nice */
793 expressionP->X_add_symbol = NULL;
794 expressionP->X_op_symbol = NULL;
800 /* reset the line as if we had not done anything */
801 input_line_pointer = start;
807 /* Summary of cc_name().
809 * in: Input_line_pointer points to 1st char of operand.
811 * out: A expressionS.
812 * The operand may have been a register: in this case, X_op == O_register,
813 * X_add_number is set to the register number, and truth is returned.
814 * Input_line_pointer->(next non-blank) char after operand, or is in
815 * its original state.
818 cc_name (expressionP)
819 expressionS * expressionP;
826 /* Find the spelling of the operand */
827 start = name = input_line_pointer;
829 c = get_symbol_end ();
830 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE);
832 * input_line_pointer = c; /* put back the delimiting char */
834 /* look to see if it's in the register table */
837 expressionP->X_op = O_constant;
838 expressionP->X_add_number = reg_number;
840 /* make the rest nice */
841 expressionP->X_add_symbol = NULL;
842 expressionP->X_op_symbol = NULL;
848 /* reset the line as if we had not done anything */
849 input_line_pointer = start;
856 skip_white_space (void)
858 while ( * input_line_pointer == ' '
859 || * input_line_pointer == '\t')
860 ++ input_line_pointer;
863 /* start-sanitize-v850e */
864 /* Summary of parse_register_list ().
866 * in: Input_line_pointer points to 1st char of a list of registers.
867 * insn is the partially constructed instruction.
868 * operand is the operand being inserted.
870 * out: NULL if the parse completed successfully, otherwise a
871 * pointer to an error message is returned. If the parse
872 * completes the correct bit fields in the instruction
875 * Parses register lists with the syntax:
883 * and also parses constant epxressions whoes bits indicate the
884 * registers in the lists. The LSB in the expression refers to
885 * the lowest numbered permissable register in the register list,
886 * and so on upwards. System registers are considered to be very
893 unsigned long * insn,
894 const struct v850_operand * operand
897 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 };
898 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 };
899 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 };
904 /* Select a register array to parse. */
905 switch (operand->shift)
907 case 0xffe00001: regs = type1_regs; break;
908 case 0xfff8000f: regs = type2_regs; break;
909 case 0xfff8001f: regs = type3_regs; break;
911 as_bad (_("unknown operand shift: %x\n"), operand->shift );
912 return _("internal failure in parse_register_list");
917 /* If the expression starts with a curly brace it is a register list.
918 Otherwise it is a constant expression, whoes bits indicate which
919 registers are to be included in the list. */
921 if (* input_line_pointer != '{')
929 if (exp.X_op != O_constant)
930 return _("constant expression or register list expected");
932 if (regs == type1_regs)
934 if (exp.X_add_number & 0xFFFFF000)
935 return _("high bits set in register list expression");
937 for (reg = 20; reg < 32; reg ++)
938 if (exp.X_add_number & (1 << (reg - 20)))
940 for (i = 0; i < 32; i++)
945 else if (regs == type2_regs)
947 if (exp.X_add_number & 0xFFFE0000)
948 return _("high bits set in register list expression");
950 for (reg = 1; reg < 16; reg ++)
951 if (exp.X_add_number & (1 << (reg - 1)))
953 for (i = 0; i < 32; i++)
958 if (exp.X_add_number & (1 << 15))
961 if (exp.X_add_number & (1 << 16))
964 else /* regs == type3_regs */
966 if (exp.X_add_number & 0xFFFE0000)
967 return _("high bits set in register list expression");
969 for (reg = 16; reg < 32; reg ++)
970 if (exp.X_add_number & (1 << (reg - 16)))
972 for (i = 0; i < 32; i++)
977 if (exp.X_add_number & (1 << 16))
984 input_line_pointer ++;
986 /* Parse the register list until a terminator (closing curly brace or
987 new-line) is found. */
990 if (register_name (& exp))
994 /* Locate the given register in the list, and if it is there,
995 insert the corresponding bit into the instruction. */
996 for (i = 0; i < 32; i++)
998 if (regs[ i ] == exp.X_add_number)
1007 return _("illegal register included in list");
1010 else if (system_register_name (& exp, true, true))
1012 if (regs == type1_regs)
1014 return _("system registers cannot be included in list");
1016 else if (exp.X_add_number == 5)
1018 if (regs == type2_regs)
1019 return _("PSW cannot be included in list");
1023 else if (exp.X_add_number < 4)
1026 return _("High value system registers cannot be included in list");
1028 else if (* input_line_pointer == '}')
1030 input_line_pointer ++;
1033 else if (* input_line_pointer == ',')
1035 input_line_pointer ++;
1038 else if (* input_line_pointer == '-')
1040 /* We have encountered a range of registers: rX - rY */
1044 /* Skip the dash. */
1045 ++ input_line_pointer;
1047 /* Get the second register in the range. */
1048 if (! register_name (& exp2))
1050 return _("second register should follow dash in register list");
1051 exp2.X_add_number = exp.X_add_number;
1054 /* Add the rest of the registers in the range. */
1055 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
1059 /* Locate the given register in the list, and if it is there,
1060 insert the corresponding bit into the instruction. */
1061 for (i = 0; i < 32; i++)
1071 return _("illegal register included in list");
1079 skip_white_space ();
1084 /* end-sanitize-v850e */
1086 CONST char * md_shortopts = "m:";
1088 struct option md_longopts[] =
1090 {NULL, no_argument, NULL, 0}
1092 size_t md_longopts_size = sizeof md_longopts;
1096 md_show_usage (stream)
1099 fprintf (stream, _("V850 options:\n"));
1100 fprintf (stream, _("\t-mwarn-signed-overflow Warn if signed immediate values overflow\n"));
1101 fprintf (stream, _("\t-mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n"));
1102 fprintf (stream, _("\t-mv850 The code is targeted at the v850\n"));
1103 /* start-sanitize-v850e */
1104 fprintf (stream, _("\t-mv850e The code is targeted at the v850e\n"));
1105 fprintf (stream, _("\t-mv850ea The code is targeted at the v850ea\n"));
1106 fprintf (stream, _("\t-mv850any The code is generic, despite any processor specific instructions\n"));
1107 /* end-sanitize-v850e */
1111 md_parse_option (c, arg)
1117 /* xgettext:c-format */
1118 fprintf (stderr, _("unknown command line option: -%c%s\n"), c, arg);
1122 if (strcmp (arg, "warn-signed-overflow") == 0)
1124 warn_signed_overflows = TRUE;
1126 else if (strcmp (arg, "warn-unsigned-overflow") == 0)
1128 warn_unsigned_overflows = TRUE;
1130 else if (strcmp (arg, "v850") == 0)
1133 processor_mask = PROCESSOR_V850;
1135 /* start-sanitize-v850e */
1136 else if (strcmp (arg, "v850e") == 0)
1138 machine = bfd_mach_v850e;
1139 processor_mask = PROCESSOR_V850E;
1141 else if (strcmp (arg, "v850ea") == 0)
1143 machine = bfd_mach_v850ea;
1144 processor_mask = PROCESSOR_V850EA;
1146 else if (strcmp (arg, "v850any") == 0)
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. */
1151 /* end-sanitize-v850e */
1154 /* xgettext:c-format */
1155 fprintf (stderr, _("unknown command line option: -%c%s\n"), c, arg);
1163 md_undefined_symbol (name)
1170 md_atof (type, litp, sizep)
1176 LITTLENUM_TYPE words[4];
1192 return _("bad call to md_atof");
1195 t = atof_ieee (input_line_pointer, type, words);
1197 input_line_pointer = t;
1201 for (i = prec - 1; i >= 0; i--)
1203 md_number_to_chars (litp, (valueT) words[i], 2);
1213 md_convert_frag (abfd, sec, fragP)
1218 subseg_change (sec, 0);
1220 /* In range conditional or unconditional branch. */
1221 if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2)
1223 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
1224 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
1228 /* Out of range conditional branch. Emit a branch around a jump. */
1229 else if (fragP->fr_subtype == 1)
1231 unsigned char *buffer =
1232 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
1234 /* Reverse the condition of the first branch. */
1236 /* Mask off all the displacement bits. */
1239 /* Now set the displacement bits so that we branch
1240 around the unconditional branch. */
1243 /* Now create the unconditional branch + fixup to the final
1245 md_number_to_chars (buffer + 2, 0x00000780, 4);
1246 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
1247 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int) fragP->fr_opcode
1252 /* Out of range unconditional branch. Emit a jump. */
1253 else if (fragP->fr_subtype == 3)
1255 md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4);
1256 fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
1257 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int) fragP->fr_opcode
1267 md_section_align (seg, addr)
1271 int align = bfd_get_section_alignment (stdoutput, seg);
1272 return ((addr + (1 << align) - 1) & (-1 << align));
1278 char * prev_name = "";
1279 register const struct v850_opcode * op;
1280 flagword applicable;
1282 /* start-sanitize-v850e */
1283 if (strncmp (TARGET_CPU, "v850ea", 6) == 0)
1286 machine = bfd_mach_v850ea;
1288 if (processor_mask == -1)
1289 processor_mask = PROCESSOR_V850EA;
1291 else if (strncmp (TARGET_CPU, "v850e", 5) == 0)
1294 machine = bfd_mach_v850e;
1296 if (processor_mask == -1)
1297 processor_mask = PROCESSOR_V850E;
1300 /* end-sanitize-v850e */
1301 if (strncmp (TARGET_CPU, "v850", 4) == 0)
1306 if (processor_mask == -1)
1307 processor_mask = PROCESSOR_V850;
1310 /* xgettext:c-format */
1311 as_bad (_("Unable to determine default target processor from string: %s"),
1314 v850_hash = hash_new();
1316 /* Insert unique names into hash table. The V850 instruction set
1317 has many identical opcode names that have different opcodes based
1318 on the operands. This hash table then provides a quick index to
1319 the first opcode with a particular name in the opcode table. */
1324 if (strcmp (prev_name, op->name))
1326 prev_name = (char *) op->name;
1327 hash_insert (v850_hash, op->name, (char *) op);
1332 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
1334 /* start-sanitize-v850e */
1335 call_table_data_section = subseg_new (".call_table_data", 0);
1336 bfd_set_section_flags (stdoutput, call_table_data_section,
1337 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1338 | SEC_DATA | SEC_HAS_CONTENTS));
1340 call_table_text_section = subseg_new (".call_table_text", 0);
1341 bfd_set_section_flags (stdoutput, call_table_text_section,
1342 applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE));
1343 /* end-sanitize-v850e */
1348 /* start-sanitize-v850e */
1349 static bfd_reloc_code_real_type
1350 handle_ctoff (const struct v850_operand * operand)
1352 if (operand == NULL)
1353 return BFD_RELOC_V850_CALLT_16_16_OFFSET;
1355 if ( operand->bits != 6
1356 || operand->shift != 0)
1358 as_bad (_("ctoff() relocation used on an instruction which does not support it"));
1359 return BFD_RELOC_64; /* Used to indicate an error condition. */
1362 return BFD_RELOC_V850_CALLT_6_7_OFFSET;
1364 /* end-sanitize-v850e */
1366 static bfd_reloc_code_real_type
1367 handle_sdaoff (const struct v850_operand * operand)
1369 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1370 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1371 /* start-sanitize-v850e */
1372 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1373 /* end-sanitize-v850e */
1375 if ( operand->bits != 16
1376 || operand->shift != 16)
1378 as_bad (_("sdaoff() relocation used on an instruction which does not support it"));
1379 return BFD_RELOC_64; /* Used to indicate an error condition. */
1382 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1385 static bfd_reloc_code_real_type
1386 handle_zdaoff (const struct v850_operand * operand)
1388 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1389 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1390 /* start-sanitize-v850e */
1391 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1392 /* end-sanitize-v850e */
1394 if ( operand->bits != 16
1395 || operand->shift != 16)
1397 as_bad (_("zdaoff() relocation used on an instruction which does not support it"));
1398 return BFD_RELOC_64; /* Used to indicate an error condition. */
1401 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1404 static bfd_reloc_code_real_type
1405 handle_tdaoff (const struct v850_operand * operand)
1407 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */
1408 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */
1409 /* start-sanitize-v850e */
1410 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */
1411 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */
1412 /* end-sanitize-v850e */
1413 if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
1415 if (operand->bits != 7)
1417 as_bad (_("tdaoff() relocation used on an instruction which does not support it"));
1418 return BFD_RELOC_64; /* Used to indicate an error condition. */
1421 return operand->insert != NULL
1422 ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */
1423 : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */
1426 /* Warning: The code in this function relies upon the definitions
1427 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1428 matching the hard coded values contained herein. */
1430 static bfd_reloc_code_real_type
1431 v850_reloc_prefix (const struct v850_operand * operand)
1433 boolean paren_skipped = false;
1436 /* Skip leading opening parenthesis. */
1437 if (* input_line_pointer == '(')
1439 ++ input_line_pointer;
1440 paren_skipped = true;
1443 #define CHECK_(name, reloc) \
1444 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1446 input_line_pointer += strlen (name); \
1450 CHECK_ ("hi0", BFD_RELOC_HI16);
1451 CHECK_ ("hi", BFD_RELOC_HI16_S);
1452 CHECK_ ("lo", BFD_RELOC_LO16);
1453 CHECK_ ("sdaoff", handle_sdaoff (operand));
1454 CHECK_ ("zdaoff", handle_zdaoff (operand));
1455 CHECK_ ("tdaoff", handle_tdaoff (operand));
1457 /* start-sanitize-v850e */
1458 CHECK_ ("hilo", BFD_RELOC_32);
1459 CHECK_ ("ctoff", handle_ctoff (operand));
1460 /* end-sanitize-v850e */
1462 /* Restore skipped parenthesis. */
1464 -- input_line_pointer;
1466 return BFD_RELOC_UNUSED;
1469 /* Insert an operand value into an instruction. */
1471 static unsigned long
1472 v850_insert_operand (insn, operand, val, file, line, str)
1474 const struct v850_operand * operand;
1480 if (operand->insert)
1482 const char * message = NULL;
1484 insn = operand->insert (insn, val, & message);
1485 if (message != NULL)
1487 if ((operand->flags & V850_OPERAND_SIGNED)
1488 && ! warn_signed_overflows
1489 && strstr (message, "out of range") != NULL)
1491 /* skip warning... */
1493 else if ((operand->flags & V850_OPERAND_SIGNED) == 0
1494 && ! warn_unsigned_overflows
1495 && strstr (message, "out of range") != NULL)
1497 /* skip warning... */
1501 if (file == (char *) NULL)
1502 as_warn ("%s: %s", str, message);
1504 as_warn_where (file, line, "%s: %s", str, message);
1508 if (file == (char *) NULL)
1511 as_warn_where (file, line, message);
1517 if (operand->bits != 32)
1522 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
1524 if (! warn_signed_overflows)
1525 max = (1 << operand->bits) - 1;
1527 max = (1 << (operand->bits - 1)) - 1;
1529 min = - (1 << (operand->bits - 1));
1533 max = (1 << operand->bits) - 1;
1535 if (! warn_unsigned_overflows)
1536 min = - (1 << (operand->bits - 1));
1541 if (val < (offsetT) min || val > (offsetT) max)
1543 /* xgettext:c-format */
1544 const char * err = _("operand out of range (%s not between %ld and %ld)");
1547 /* Restore min and mix to expected values for decimal ranges. */
1548 if ((operand->flags & V850_OPERAND_SIGNED)
1549 && ! warn_signed_overflows)
1550 max = (1 << (operand->bits - 1)) - 1;
1552 if (! (operand->flags & V850_OPERAND_SIGNED)
1553 && ! warn_unsigned_overflows)
1558 sprintf (buf, "%s: ", str);
1560 sprint_value (buf + strlen (buf), val);
1563 sprint_value (buf, val);
1565 if (file == (char *) NULL)
1566 as_warn (err, buf, min, max);
1568 as_warn_where (file, line, err, buf, min, max);
1572 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
1579 static char copy_of_instruction [128];
1586 char * start_of_operands;
1587 struct v850_opcode * opcode;
1588 struct v850_opcode * next_opcode;
1589 const unsigned char * opindex_ptr;
1593 unsigned long insn_size;
1597 boolean extra_data_after_insn = false;
1598 unsigned extra_data_len;
1599 unsigned long extra_data;
1600 char * saved_input_line_pointer;
1603 strncpy (copy_of_instruction, str, sizeof (copy_of_instruction) - 1);
1605 /* Get the opcode. */
1606 for (s = str; *s != '\0' && ! isspace (*s); s++)
1612 /* find the first opcode with the proper name */
1613 opcode = (struct v850_opcode *) hash_find (v850_hash, str);
1616 /* xgettext:c-format */
1617 as_bad (_("Unrecognized opcode: `%s'"), str);
1618 ignore_rest_of_line ();
1623 while (isspace (* str))
1626 start_of_operands = str;
1628 saved_input_line_pointer = input_line_pointer;
1632 const char * errmsg = NULL;
1636 if ((opcode->processors & processor_mask) == 0)
1638 errmsg = _("Target processor does not support this instruction.");
1645 insn = opcode->opcode;
1646 extra_data_after_insn = false;
1648 input_line_pointer = str = start_of_operands;
1650 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr ++)
1652 const struct v850_operand * operand;
1655 bfd_reloc_code_real_type reloc;
1657 if (next_opindex == 0)
1659 operand = & v850_operands[ * opindex_ptr ];
1663 operand = & v850_operands[ next_opindex ];
1669 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1672 if (operand->flags & V850_OPERAND_RELAX)
1675 /* Gather the operand. */
1676 hold = input_line_pointer;
1677 input_line_pointer = str;
1679 /* lo(), hi(), hi0(), etc... */
1680 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1682 /* This is a fake reloc, used to indicate an error condition. */
1683 if (reloc == BFD_RELOC_64)
1691 if (ex.X_op == O_constant)
1695 case BFD_RELOC_V850_ZDA_16_16_OFFSET:
1696 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]"
1700 case BFD_RELOC_LO16:
1702 /* Truncate, then sign extend the value. */
1703 ex.X_add_number = SEXT16 (ex.X_add_number);
1707 case BFD_RELOC_HI16:
1709 /* Truncate, then sign extend the value. */
1710 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1714 case BFD_RELOC_HI16_S:
1716 /* Truncate, then sign extend the value. */
1717 int temp = (ex.X_add_number >> 16) & 0xffff;
1719 temp += (ex.X_add_number >> 15) & 1;
1721 ex.X_add_number = SEXT16 (temp);
1725 /* start-sanitize-v850e */
1727 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1729 errmsg = _("immediate operand is too large");
1733 extra_data_after_insn = true;
1735 extra_data = ex.X_add_number;
1736 ex.X_add_number = 0;
1738 /* end-sanitize-v850e */
1741 fprintf (stderr, "reloc: %d\n", reloc);
1742 as_bad (_("AAARG -> unhandled constant reloc"));
1746 if (fc > MAX_INSN_FIXUPS)
1747 as_fatal (_("too many fixups"));
1749 fixups[ fc ].exp = ex;
1750 fixups[ fc ].opindex = * opindex_ptr;
1751 fixups[ fc ].reloc = reloc;
1756 /* start-sanitize-v850e */
1757 if (reloc == BFD_RELOC_32)
1759 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1761 errmsg = _("immediate operand is too large");
1765 extra_data_after_insn = true;
1767 extra_data = ex.X_add_number;
1769 /* end-sanitize-v850e */
1771 if (fc > MAX_INSN_FIXUPS)
1772 as_fatal (_("too many fixups"));
1774 fixups[ fc ].exp = ex;
1775 fixups[ fc ].opindex = * opindex_ptr;
1776 fixups[ fc ].reloc = reloc;
1784 if ((operand->flags & V850_OPERAND_REG) != 0)
1786 if (!register_name (& ex))
1788 errmsg = _("invalid register name");
1790 else if ((operand->flags & V850_NOT_R0)
1791 && ex.X_add_number == 0)
1793 errmsg = _("register r0 cannot be used here");
1795 /* Force an error message to be generated by
1796 skipping over any following potential matches
1801 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1803 if (!system_register_name (& ex, true
1804 /* start-sanitize-v850e */
1806 /* end-sanitize-v850e */
1809 errmsg = _("invalid system register name");
1812 else if ((operand->flags & V850_OPERAND_EP) != 0)
1814 char * start = input_line_pointer;
1815 char c = get_symbol_end ();
1817 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1819 /* Put things back the way we found them. */
1820 *input_line_pointer = c;
1821 input_line_pointer = start;
1822 errmsg = _("expected EP register");
1826 *input_line_pointer = c;
1827 str = input_line_pointer;
1828 input_line_pointer = hold;
1830 while ( *str == ' ' || *str == ',' || *str == '['
1835 else if ((operand->flags & V850_OPERAND_CC) != 0)
1837 if (!cc_name (& ex))
1839 errmsg = _("invalid condition code name");
1842 /* start-sanitize-v850e */
1843 else if (operand->flags & V850E_PUSH_POP)
1845 errmsg = parse_register_list (& insn, operand);
1847 /* The parse_register_list() function has already done
1848 everything, so fake a dummy expression. */
1849 ex.X_op = O_constant;
1850 ex.X_add_number = 0;
1852 else if (operand->flags & V850E_IMMEDIATE16)
1856 if (ex.X_op != O_constant)
1857 errmsg = _("constant expression expected");
1858 else if (ex.X_add_number & 0xffff0000)
1860 if (ex.X_add_number & 0xffff)
1861 errmsg = _("constant too big to fit into instruction");
1862 else if ((insn & 0x001fffc0) == 0x00130780)
1863 ex.X_add_number >>= 16;
1865 errmsg = _("constant too big to fit into instruction");
1868 extra_data_after_insn = true;
1870 extra_data = ex.X_add_number;
1871 ex.X_add_number = 0;
1873 else if (operand->flags & V850E_IMMEDIATE32)
1877 if (ex.X_op != O_constant)
1878 errmsg = _("constant expression expected");
1880 extra_data_after_insn = true;
1882 extra_data = ex.X_add_number;
1883 ex.X_add_number = 0;
1885 /* end-sanitize-v850e */
1886 else if (register_name (& ex)
1887 && (operand->flags & V850_OPERAND_REG) == 0)
1892 /* It is possible that an alias has been defined that
1893 matches a register name. For example the code may
1894 include a ".set ZERO, 0" directive, which matches
1895 the register name "zero". Attempt to reparse the
1896 field as an expression, and only complain if we
1897 cannot generate a constant. */
1899 input_line_pointer = str;
1901 c = get_symbol_end();
1903 if (symbol_find (str) != NULL)
1906 * input_line_pointer = c;
1907 input_line_pointer = str;
1911 if (ex.X_op != O_constant)
1913 /* If this register is actually occuring too early on
1914 the parsing of the instruction, (because another
1915 field is missing) then report this. */
1916 if (opindex_ptr[1] != 0
1917 && (v850_operands [opindex_ptr [1]].flags & V850_OPERAND_REG))
1918 errmsg = _("syntax error: value is missing before the register name");
1920 errmsg = _("syntax error: register not expected");
1922 /* If we created a symbol in the process of this test then
1923 delete it now, so that it will not be output with the real
1926 && ex.X_op == O_symbol)
1927 symbol_remove (ex.X_add_symbol,
1928 & symbol_rootP, & symbol_lastP);
1931 else if (system_register_name (& ex, false
1932 /* start-sanitize-v850e */
1934 /* end-sanitize-v850e */
1936 && (operand->flags & V850_OPERAND_SRG) == 0)
1938 errmsg = _("syntax error: system register not expected");
1940 else if (cc_name (&ex)
1941 && (operand->flags & V850_OPERAND_CC) == 0)
1943 errmsg = _("syntax error: condition code not expected");
1948 /* start-sanitize-v850e */
1950 If we are assembling a MOV instruction (or a CALLT.... :-)
1951 and the immediate value does not fit into the bits
1952 available then create a fake error so that the next MOV
1953 instruction will be selected. This one has a 32 bit
1956 if (((insn & 0x07e0) == 0x0200)
1957 && ex.X_op == O_constant
1958 && (ex.X_add_number < (- (1 << (operand->bits - 1)))
1959 || ex.X_add_number > ((1 << operand->bits) - 1)))
1960 errmsg = _("immediate operand is too large");
1961 /* end-sanitize-v850e */
1967 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n",
1968 insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
1973 errmsg = _("illegal operand");
1976 errmsg = _("missing operand");
1979 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
1981 errmsg = _("invalid operand");
1984 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1986 copy_of_instruction);
1990 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1992 copy_of_instruction);
1996 /* We need to generate a fixup for this expression. */
1997 if (fc >= MAX_INSN_FIXUPS)
1998 as_fatal (_("too many fixups"));
2000 fixups[ fc ].exp = ex;
2001 fixups[ fc ].opindex = * opindex_ptr;
2002 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
2008 str = input_line_pointer;
2009 input_line_pointer = hold;
2011 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
2020 next_opcode = opcode + 1;
2021 if (next_opcode->name != NULL
2022 && strcmp (next_opcode->name, opcode->name) == 0)
2024 opcode = next_opcode;
2026 /* Skip versions that are not supported by the target
2028 if ((opcode->processors & processor_mask) == 0)
2034 as_bad ("%s: %s", copy_of_instruction, errmsg);
2036 if (* input_line_pointer == ']')
2037 ++ input_line_pointer;
2039 ignore_rest_of_line ();
2040 input_line_pointer = saved_input_line_pointer;
2046 while (isspace (*str))
2050 /* xgettext:c-format */
2051 as_bad (_("junk at end of line: `%s'"), str);
2053 input_line_pointer = str;
2055 /* Write out the instruction. */
2057 if (relaxable && fc > 0)
2062 if (!strcmp (opcode->name, "br"))
2064 f = frag_var (rs_machine_dependent, 4, 2, 2,
2065 fixups[0].exp.X_add_symbol,
2066 fixups[0].exp.X_add_number,
2067 (char *)fixups[0].opindex);
2068 md_number_to_chars (f, insn, insn_size);
2069 md_number_to_chars (f + 2, 0, 2);
2073 f = frag_var (rs_machine_dependent, 6, 4, 0,
2074 fixups[0].exp.X_add_symbol,
2075 fixups[0].exp.X_add_number,
2076 (char *)fixups[0].opindex);
2077 md_number_to_chars (f, insn, insn_size);
2078 md_number_to_chars (f + 2, 0, 4);
2083 /* Four byte insns have an opcode with the two high bits on. */
2084 if ((insn & 0x0600) == 0x0600)
2089 /* start-sanitize-v850e */
2090 /* Special case: 32 bit MOV */
2091 if ((insn & 0xffe0) == 0x0620)
2093 /* end-sanitize-v850e */
2095 f = frag_more (insn_size);
2097 md_number_to_chars (f, insn, insn_size);
2099 if (extra_data_after_insn)
2101 f = frag_more (extra_data_len);
2103 md_number_to_chars (f, extra_data, extra_data_len);
2105 extra_data_after_insn = false;
2109 /* Create any fixups. At this point we do not use a
2110 bfd_reloc_code_real_type, but instead just use the
2111 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2112 handle fixups for any operand type, although that is admittedly
2113 not a very exciting feature. We pick a BFD reloc type in
2115 for (i = 0; i < fc; i++)
2117 const struct v850_operand * operand;
2118 bfd_reloc_code_real_type reloc;
2120 operand = & v850_operands[ fixups[i].opindex ];
2122 reloc = fixups[i].reloc;
2124 if (reloc != BFD_RELOC_UNUSED)
2126 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput,
2135 size = bfd_get_reloc_size (reloc_howto);
2137 /* XXX This will abort on an R_V850_8 reloc -
2138 is this reloc actually used ? */
2139 if (size != 2 && size != 4)
2142 address = (f - frag_now->fr_literal) + insn_size - size;
2144 if (reloc == BFD_RELOC_32)
2149 fixP = fix_new_exp (frag_now, address, size,
2151 reloc_howto->pc_relative,
2156 case BFD_RELOC_LO16:
2157 case BFD_RELOC_HI16:
2158 case BFD_RELOC_HI16_S:
2159 fixP->fx_no_overflow = 1;
2167 f - frag_now->fr_literal, 4,
2169 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2170 (bfd_reloc_code_real_type) (fixups[i].opindex
2171 + (int) BFD_RELOC_UNUSED)
2176 input_line_pointer = saved_input_line_pointer;
2180 /* If while processing a fixup, a reloc really needs to be created */
2181 /* then it is done here. */
2184 tc_gen_reloc (seg, fixp)
2190 reloc = (arelent *) xmalloc (sizeof (arelent));
2191 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
2192 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2193 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
2195 if (reloc->howto == (reloc_howto_type *) NULL)
2197 as_bad_where (fixp->fx_file, fixp->fx_line,
2198 /* xgettext:c-format */
2199 _("reloc %d not supported by object file format"),
2200 (int)fixp->fx_r_type);
2207 reloc->addend = fixp->fx_addnumber;
2212 /* Assume everything will fit in two bytes, then expand as necessary. */
2214 md_estimate_size_before_relax (fragp, seg)
2218 if (fragp->fr_subtype == 0)
2220 else if (fragp->fr_subtype == 2)
2228 md_pcrel_from (fixp)
2231 /* If the symbol is undefined, or in a section other than our own,
2232 then let the linker figure it out. */
2233 if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
2235 /* The symbol is undefined. Let the linker figure it out. */
2238 return fixp->fx_frag->fr_address + fixp->fx_where;
2242 md_apply_fix3 (fixp, valuep, seg)
2250 if (fixp->fx_addsy == (symbolS *) NULL)
2255 else if (fixp->fx_pcrel)
2259 value = fixp->fx_offset;
2260 if (fixp->fx_subsy != (symbolS *) NULL)
2262 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
2263 value -= S_GET_VALUE (fixp->fx_subsy);
2266 /* We don't actually support subtracting a symbol. */
2267 as_bad_where (fixp->fx_file, fixp->fx_line,
2268 _("expression too complex"));
2273 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
2276 const struct v850_operand * operand;
2279 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
2280 operand = & v850_operands[ opindex ];
2282 /* Fetch the instruction, insert the fully resolved operand
2283 value, and stuff the instruction back again.
2285 Note the instruction has been stored in little endian
2287 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2289 insn = bfd_getl32 ((unsigned char *) where);
2290 insn = v850_insert_operand (insn, operand, (offsetT) value,
2291 fixp->fx_file, fixp->fx_line, NULL);
2292 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
2296 /* Nothing else to do here. */
2300 /* Determine a BFD reloc value based on the operand information.
2301 We are only prepared to turn a few of the operands into relocs. */
2303 if (operand->bits == 22)
2304 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
2305 else if (operand->bits == 9)
2306 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
2309 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2311 as_bad_where(fixp->fx_file, fixp->fx_line,
2312 _("unresolved expression that must be resolved"));
2317 else if (fixp->fx_done)
2319 /* We still have to insert the value into memory! */
2320 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2322 if (fixp->fx_size == 1)
2323 *where = value & 0xff;
2324 else if (fixp->fx_size == 2)
2325 bfd_putl16 (value & 0xffff, (unsigned char *) where);
2326 else if (fixp->fx_size == 4)
2327 bfd_putl32 (value, (unsigned char *) where);
2330 fixp->fx_addnumber = value;
2335 /* Parse a cons expression. We have to handle hi(), lo(), etc
2338 parse_cons_expression_v850 (exp)
2341 /* See if there's a reloc prefix like hi() we have to handle. */
2342 hold_cons_reloc = v850_reloc_prefix (NULL);
2344 /* Do normal expression parsing. */
2348 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2349 found a reloc prefix, then we use that reloc, else we choose an
2350 appropriate one based on the size of the expression. */
2352 cons_fix_new_v850 (frag, where, size, exp)
2358 if (hold_cons_reloc == BFD_RELOC_UNUSED)
2361 hold_cons_reloc = BFD_RELOC_32;
2363 hold_cons_reloc = BFD_RELOC_16;
2365 hold_cons_reloc = BFD_RELOC_8;
2369 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
2371 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);