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 ();
259 /* just after name is now '\0' */
260 p = input_line_pointer;
265 if (*input_line_pointer != ',')
267 as_bad (_("Expected comma after symbol-name"));
268 ignore_rest_of_line ();
272 input_line_pointer ++; /* skip ',' */
274 if ((temp = get_absolute_expression ()) < 0)
276 /* xgettext:c-format */
277 as_bad (_(".COMMon length (%d.) < 0! Ignored."), temp);
278 ignore_rest_of_line ();
284 symbolP = symbol_find_or_make (name);
287 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
289 as_bad (_("Ignoring attempt to re-define symbol"));
290 ignore_rest_of_line ();
294 if (S_GET_VALUE (symbolP) != 0)
296 if (S_GET_VALUE (symbolP) != size)
298 /* xgettext:c-format */
299 as_warn (_("Length of .comm \"%s\" is already %ld. Not changed to %d."),
300 S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size);
304 know (symbolP->sy_frag == & zero_address_frag);
306 if (*input_line_pointer != ',')
311 input_line_pointer++;
315 if (! have_align || *input_line_pointer != '"')
321 temp = get_absolute_expression ();
326 as_warn (_("Common alignment negative; 0 assumed"));
339 old_subsec = now_subseg;
341 applicable = bfd_applicable_section_flags (stdoutput);
343 applicable &= SEC_ALLOC;
348 if (sbss_section == NULL)
350 sbss_section = subseg_new (".sbss", 0);
352 bfd_set_section_flags (stdoutput, sbss_section, applicable);
354 seg_info (sbss_section)->bss = 1;
359 if (zbss_section == NULL)
361 zbss_section = subseg_new (".zbss", 0);
363 bfd_set_section_flags (stdoutput, sbss_section, applicable);
365 seg_info (zbss_section)->bss = 1;
370 if (tbss_section == NULL)
372 tbss_section = subseg_new (".tbss", 0);
374 bfd_set_section_flags (stdoutput, tbss_section, applicable);
376 seg_info (tbss_section)->bss = 1;
383 /* convert to a power of 2 alignment */
384 for (align = 0; (temp & 1) == 0; temp >>= 1, ++align)
389 as_bad (_("Common alignment not a power of 2"));
390 ignore_rest_of_line ();
400 record_alignment (sbss_section, align);
401 obj_elf_section_change_hook();
402 subseg_set (sbss_section, 0);
406 record_alignment (zbss_section, align);
407 obj_elf_section_change_hook();
408 subseg_set (zbss_section, 0);
412 record_alignment (tbss_section, align);
413 obj_elf_section_change_hook();
414 subseg_set (tbss_section, 0);
422 frag_align (align, 0, 0);
427 if (S_GET_SEGMENT (symbolP) == sbss_section)
428 symbolP->sy_frag->fr_symbol = 0;
432 if (S_GET_SEGMENT (symbolP) == zbss_section)
433 symbolP->sy_frag->fr_symbol = 0;
437 if (S_GET_SEGMENT (symbolP) == tbss_section)
438 symbolP->sy_frag->fr_symbol = 0;
445 symbolP->sy_frag = frag_now;
446 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
447 (offsetT) size, (char *) 0);
449 S_SET_SIZE (symbolP, size);
454 S_SET_SEGMENT (symbolP, sbss_section);
458 S_SET_SEGMENT (symbolP, zbss_section);
462 S_SET_SEGMENT (symbolP, tbss_section);
469 S_CLEAR_EXTERNAL (symbolP);
470 obj_elf_section_change_hook();
471 subseg_set (old_sec, old_subsec);
476 S_SET_VALUE (symbolP, (valueT) size);
477 S_SET_ALIGN (symbolP, temp);
478 S_SET_EXTERNAL (symbolP);
483 if (scommon_section == NULL)
487 applicable = bfd_applicable_section_flags (stdoutput);
489 scommon_section = subseg_new (".scommon", 0);
491 bfd_set_section_flags (stdoutput, scommon_section, applicable
492 & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA
493 | SEC_HAS_CONTENTS) | SEC_IS_COMMON);
495 S_SET_SEGMENT (symbolP, scommon_section);
499 if (zcommon_section == NULL)
503 applicable = bfd_applicable_section_flags (stdoutput);
505 zcommon_section = subseg_new (".zcommon", 0);
507 bfd_set_section_flags (stdoutput, zcommon_section, applicable
508 & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA
509 | SEC_HAS_CONTENTS) | SEC_IS_COMMON);
511 S_SET_SEGMENT (symbolP, zcommon_section);
515 if (tcommon_section == NULL)
519 applicable = bfd_applicable_section_flags (stdoutput);
521 tcommon_section = subseg_new (".tcommon", 0);
523 bfd_set_section_flags (stdoutput, tcommon_section, applicable
524 & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA
525 | SEC_HAS_CONTENTS) | SEC_IS_COMMON);
527 S_SET_SEGMENT (symbolP, tcommon_section);
537 input_line_pointer++;
538 /* @@ Some use the dot, some don't. Can we get some consistency?? */
539 if (*input_line_pointer == '.')
540 input_line_pointer++;
541 /* @@ Some say data, some say bss. */
542 if (strncmp (input_line_pointer, "bss\"", 4)
543 && strncmp (input_line_pointer, "data\"", 5))
545 while (*--input_line_pointer != '"')
547 input_line_pointer--;
548 goto bad_common_segment;
550 while (*input_line_pointer++ != '"')
552 goto allocate_common;
555 symbolP->bsym->flags |= BSF_OBJECT;
557 demand_empty_rest_of_line ();
562 p = input_line_pointer;
563 while (*p && *p != '\n')
567 as_bad (_("bad .common segment %s"), input_line_pointer + 1);
569 input_line_pointer = p;
570 ignore_rest_of_line ();
576 set_machine (int number)
579 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
583 case 0: processor_mask = PROCESSOR_V850; break;
584 /* start-sanitize-v850e */
585 case bfd_mach_v850e: processor_mask = PROCESSOR_V850E; break;
586 case bfd_mach_v850ea: processor_mask = PROCESSOR_V850EA; break;
587 /* end-sanitize-v850e */
591 /* The target specific pseudo-ops which we support. */
592 const pseudo_typeS md_pseudo_table[] =
594 {"sdata", v850_sdata, 0},
595 {"tdata", v850_tdata, 0},
596 {"zdata", v850_zdata, 0},
597 {"sbss", v850_sbss, 0},
598 {"tbss", v850_tbss, 0},
599 {"zbss", v850_zbss, 0},
600 {"rosdata", v850_rosdata, 0},
601 {"rozdata", v850_rozdata, 0},
602 {"bss", v850_bss, 0},
603 {"offset", v850_offset, 0},
605 {"zcomm", v850_comm, AREA_ZDA},
606 {"scomm", v850_comm, AREA_SDA},
607 {"tcomm", v850_comm, AREA_TDA},
608 {"v850", set_machine, 0},
609 /* start-sanitize-v850e */
610 {"call_table_data", v850_call_table_data, 0},
611 {"call_table_text", v850_call_table_text, 0},
612 {"v850e", set_machine, bfd_mach_v850e},
613 {"v850ea", set_machine, bfd_mach_v850ea},
614 /* end-sanitize-v850e */
618 /* Opcode hash table. */
619 static struct hash_control *v850_hash;
621 /* This table is sorted. Suitable for searching by a binary search. */
622 static const struct reg_name pre_defined_registers[] =
624 { "ep", 30 }, /* ep - element ptr */
625 { "gp", 4 }, /* gp - global ptr */
626 { "hp", 2 }, /* hp - handler stack ptr */
627 { "lp", 31 }, /* lp - link ptr */
660 { "sp", 3 }, /* sp - stack ptr */
661 { "tp", 5 }, /* tp - text ptr */
664 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
667 static const struct reg_name system_registers[] =
669 /* start-sanitize-v850e */
675 /* end-sanitize-v850e */
683 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
685 /* start-sanitize-v850e */
686 static const struct reg_name system_list_registers[] =
691 #define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name))
692 /* end-sanitize-v850e */
694 static const struct reg_name cc_names[] =
719 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
721 /* reg_name_search does a binary search of the given register table
722 to see if "name" is a valid regiter name. Returns the register
723 number from the array on success, or -1 on failure. */
726 reg_name_search (regs, regcount, name, accept_numbers)
727 const struct reg_name * regs;
730 boolean accept_numbers;
732 int middle, low, high;
736 /* If the register name is a symbol, then evaluate it. */
737 if ((symbolP = symbol_find (name)) != NULL)
739 /* If the symbol is an alias for another name then use that.
740 If the symbol is an alias for a number, then return the number. */
741 if (symbolP->sy_value.X_op == O_symbol)
743 name = S_GET_NAME (symbolP->sy_value.X_add_symbol);
745 else if (accept_numbers)
747 int reg = S_GET_VALUE (symbolP);
749 if (reg >= 0 && reg <= 31)
753 /* Otherwise drop through and try parsing name normally. */
761 middle = (low + high) / 2;
762 cmp = strcasecmp (name, regs[middle].name);
768 return regs[middle].value;
775 /* Summary of register_name().
777 * in: Input_line_pointer points to 1st char of operand.
779 * out: A expressionS.
780 * The operand may have been a register: in this case, X_op == O_register,
781 * X_add_number is set to the register number, and truth is returned.
782 * Input_line_pointer->(next non-blank) char after operand, or is in
783 * its original state.
786 register_name (expressionP)
787 expressionS * expressionP;
794 /* Find the spelling of the operand */
795 start = name = input_line_pointer;
797 c = get_symbol_end ();
799 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT,
802 * input_line_pointer = c; /* put back the delimiting char */
804 /* look to see if it's in the register table */
807 expressionP->X_op = O_register;
808 expressionP->X_add_number = reg_number;
810 /* make the rest nice */
811 expressionP->X_add_symbol = NULL;
812 expressionP->X_op_symbol = NULL;
818 /* reset the line as if we had not done anything */
819 input_line_pointer = start;
825 /* Summary of system_register_name().
827 * in: Input_line_pointer points to 1st char of operand.
828 * expressionP points to an expression structure to be filled in.
829 * accept_numbers is true iff numerical register names may be used.
830 * start-sanitize-v850e
831 * accept_list_names is true iff the special names PS and SR may be
835 * out: A expressionS structure in expressionP.
836 * The operand may have been a register: in this case, X_op == O_register,
837 * X_add_number is set to the register number, and truth is returned.
838 * Input_line_pointer->(next non-blank) char after operand, or is in
839 * its original state.
842 system_register_name (expressionP, accept_numbers
843 /* start-sanitize-v850e */
845 /* end-sanitize-v850e */
847 expressionS * expressionP;
848 boolean accept_numbers;
849 /* start-sanitize-v850e */
850 boolean accept_list_names;
851 /* end-sanitize-v850e */
858 /* Find the spelling of the operand */
859 start = name = input_line_pointer;
861 c = get_symbol_end ();
862 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name,
865 * input_line_pointer = c; /* put back the delimiting char */
870 input_line_pointer = start; /* reset input_line pointer */
872 if (isdigit (* input_line_pointer))
874 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
876 /* Make sure that the register number is allowable. */
879 /* start-sanitize-v850e */
882 /* end-sanitize-v850e */
888 /* start-sanitize-v850e */
889 else if (accept_list_names)
891 c = get_symbol_end ();
892 reg_number = reg_name_search (system_list_registers,
893 SYSREGLIST_NAME_CNT, name, FALSE);
895 * input_line_pointer = c; /* put back the delimiting char */
897 /* end-sanitize-v850e */
900 /* look to see if it's in the register table */
903 expressionP->X_op = O_register;
904 expressionP->X_add_number = reg_number;
906 /* make the rest nice */
907 expressionP->X_add_symbol = NULL;
908 expressionP->X_op_symbol = NULL;
914 /* reset the line as if we had not done anything */
915 input_line_pointer = start;
921 /* Summary of cc_name().
923 * in: Input_line_pointer points to 1st char of operand.
925 * out: A expressionS.
926 * The operand may have been a register: in this case, X_op == O_register,
927 * X_add_number is set to the register number, and truth is returned.
928 * Input_line_pointer->(next non-blank) char after operand, or is in
929 * its original state.
932 cc_name (expressionP)
933 expressionS * expressionP;
940 /* Find the spelling of the operand */
941 start = name = input_line_pointer;
943 c = get_symbol_end ();
944 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE);
946 * input_line_pointer = c; /* put back the delimiting char */
948 /* look to see if it's in the register table */
951 expressionP->X_op = O_constant;
952 expressionP->X_add_number = reg_number;
954 /* make the rest nice */
955 expressionP->X_add_symbol = NULL;
956 expressionP->X_op_symbol = NULL;
962 /* reset the line as if we had not done anything */
963 input_line_pointer = start;
970 skip_white_space (void)
972 while ( * input_line_pointer == ' '
973 || * input_line_pointer == '\t')
974 ++ input_line_pointer;
977 /* start-sanitize-v850e */
978 /* Summary of parse_register_list ().
980 * in: Input_line_pointer points to 1st char of a list of registers.
981 * insn is the partially constructed instruction.
982 * operand is the operand being inserted.
984 * out: NULL if the parse completed successfully, otherwise a
985 * pointer to an error message is returned. If the parse
986 * completes the correct bit fields in the instruction
989 * Parses register lists with the syntax:
997 * and also parses constant epxressions whoes bits indicate the
998 * registers in the lists. The LSB in the expression refers to
999 * the lowest numbered permissable register in the register list,
1000 * and so on upwards. System registers are considered to be very
1007 unsigned long * insn,
1008 const struct v850_operand * operand
1011 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 };
1012 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 };
1013 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 };
1018 /* Select a register array to parse. */
1019 switch (operand->shift)
1021 case 0xffe00001: regs = type1_regs; break;
1022 case 0xfff8000f: regs = type2_regs; break;
1023 case 0xfff8001f: regs = type3_regs; break;
1025 as_bad (_("unknown operand shift: %x\n"), operand->shift);
1026 return _("internal failure in parse_register_list");
1029 skip_white_space ();
1031 /* If the expression starts with a curly brace it is a register list.
1032 Otherwise it is a constant expression, whoes bits indicate which
1033 registers are to be included in the list. */
1035 if (* input_line_pointer != '{')
1043 if (exp.X_op != O_constant)
1044 return _("constant expression or register list expected");
1046 if (regs == type1_regs)
1048 if (exp.X_add_number & 0xFFFFF000)
1049 return _("high bits set in register list expression");
1051 for (reg = 20; reg < 32; reg ++)
1052 if (exp.X_add_number & (1 << (reg - 20)))
1054 for (i = 0; i < 32; i++)
1059 else if (regs == type2_regs)
1061 if (exp.X_add_number & 0xFFFE0000)
1062 return _("high bits set in register list expression");
1064 for (reg = 1; reg < 16; reg ++)
1065 if (exp.X_add_number & (1 << (reg - 1)))
1067 for (i = 0; i < 32; i++)
1072 if (exp.X_add_number & (1 << 15))
1075 if (exp.X_add_number & (1 << 16))
1076 * insn |= (1 << 19);
1078 else /* regs == type3_regs */
1080 if (exp.X_add_number & 0xFFFE0000)
1081 return _("high bits set in register list expression");
1083 for (reg = 16; reg < 32; reg ++)
1084 if (exp.X_add_number & (1 << (reg - 16)))
1086 for (i = 0; i < 32; i++)
1091 if (exp.X_add_number & (1 << 16))
1092 * insn |= (1 << 19);
1098 input_line_pointer ++;
1100 /* Parse the register list until a terminator (closing curly brace or
1101 new-line) is found. */
1104 if (register_name (& exp))
1108 /* Locate the given register in the list, and if it is there,
1109 insert the corresponding bit into the instruction. */
1110 for (i = 0; i < 32; i++)
1112 if (regs[ i ] == exp.X_add_number)
1121 return _("illegal register included in list");
1124 else if (system_register_name (& exp, true, true))
1126 if (regs == type1_regs)
1128 return _("system registers cannot be included in list");
1130 else if (exp.X_add_number == 5)
1132 if (regs == type2_regs)
1133 return _("PSW cannot be included in list");
1137 else if (exp.X_add_number < 4)
1140 return _("High value system registers cannot be included in list");
1142 else if (* input_line_pointer == '}')
1144 input_line_pointer ++;
1147 else if (* input_line_pointer == ',')
1149 input_line_pointer ++;
1152 else if (* input_line_pointer == '-')
1154 /* We have encountered a range of registers: rX - rY */
1158 /* Skip the dash. */
1159 ++ input_line_pointer;
1161 /* Get the second register in the range. */
1162 if (! register_name (& exp2))
1164 return _("second register should follow dash in register list");
1165 exp2.X_add_number = exp.X_add_number;
1168 /* Add the rest of the registers in the range. */
1169 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
1173 /* Locate the given register in the list, and if it is there,
1174 insert the corresponding bit into the instruction. */
1175 for (i = 0; i < 32; i++)
1185 return _("illegal register included in list");
1193 skip_white_space ();
1198 /* end-sanitize-v850e */
1200 CONST char * md_shortopts = "m:";
1202 struct option md_longopts[] =
1204 {NULL, no_argument, NULL, 0}
1206 size_t md_longopts_size = sizeof md_longopts;
1210 md_show_usage (stream)
1213 fprintf (stream, _(" V850 options:\n"));
1214 fprintf (stream, _(" -mwarn-signed-overflow Warn if signed immediate values overflow\n"));
1215 fprintf (stream, _(" -mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n"));
1216 fprintf (stream, _(" -mv850 The code is targeted at the v850\n"));
1217 /* start-sanitize-v850e */
1218 fprintf (stream, _(" -mv850e The code is targeted at the v850e\n"));
1219 fprintf (stream, _(" -mv850ea The code is targeted at the v850ea\n"));
1220 fprintf (stream, _(" -mv850any The code is generic, despite any processor specific instructions\n"));
1221 /* end-sanitize-v850e */
1225 md_parse_option (c, arg)
1231 /* xgettext:c-format */
1232 fprintf (stderr, _("unknown command line option: -%c%s\n"), c, arg);
1236 if (strcmp (arg, "warn-signed-overflow") == 0)
1238 warn_signed_overflows = TRUE;
1240 else if (strcmp (arg, "warn-unsigned-overflow") == 0)
1242 warn_unsigned_overflows = TRUE;
1244 else if (strcmp (arg, "v850") == 0)
1247 processor_mask = PROCESSOR_V850;
1249 /* start-sanitize-v850e */
1250 else if (strcmp (arg, "v850e") == 0)
1252 machine = bfd_mach_v850e;
1253 processor_mask = PROCESSOR_V850E;
1255 else if (strcmp (arg, "v850ea") == 0)
1257 machine = bfd_mach_v850ea;
1258 processor_mask = PROCESSOR_V850EA;
1260 else if (strcmp (arg, "v850any") == 0)
1262 machine = 0; /* Tell the world that this is for any v850 chip. */
1263 processor_mask = PROCESSOR_V850EA; /* But support instructions for the extended versions. */
1265 /* end-sanitize-v850e */
1268 /* xgettext:c-format */
1269 fprintf (stderr, _("unknown command line option: -%c%s\n"), c, arg);
1277 md_undefined_symbol (name)
1284 md_atof (type, litp, sizep)
1290 LITTLENUM_TYPE words[4];
1306 return _("bad call to md_atof");
1309 t = atof_ieee (input_line_pointer, type, words);
1311 input_line_pointer = t;
1315 for (i = prec - 1; i >= 0; i--)
1317 md_number_to_chars (litp, (valueT) words[i], 2);
1327 md_convert_frag (abfd, sec, fragP)
1332 subseg_change (sec, 0);
1334 /* In range conditional or unconditional branch. */
1335 if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2)
1337 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
1338 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
1342 /* Out of range conditional branch. Emit a branch around a jump. */
1343 else if (fragP->fr_subtype == 1)
1345 unsigned char *buffer =
1346 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
1348 /* Reverse the condition of the first branch. */
1350 /* Mask off all the displacement bits. */
1353 /* Now set the displacement bits so that we branch
1354 around the unconditional branch. */
1357 /* Now create the unconditional branch + fixup to the final
1359 md_number_to_chars (buffer + 2, 0x00000780, 4);
1360 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
1361 fragP->fr_offset, 1, BFD_RELOC_UNUSED +
1362 (int) fragP->fr_opcode + 1);
1366 /* Out of range unconditional branch. Emit a jump. */
1367 else if (fragP->fr_subtype == 3)
1369 md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4);
1370 fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
1371 fragP->fr_offset, 1, BFD_RELOC_UNUSED +
1372 (int) fragP->fr_opcode + 1);
1381 md_section_align (seg, addr)
1385 int align = bfd_get_section_alignment (stdoutput, seg);
1386 return ((addr + (1 << align) - 1) & (-1 << align));
1392 char * prev_name = "";
1393 register const struct v850_opcode * op;
1394 flagword applicable;
1396 /* start-sanitize-v850e */
1397 if (strncmp (TARGET_CPU, "v850ea", 6) == 0)
1400 machine = bfd_mach_v850ea;
1402 if (processor_mask == -1)
1403 processor_mask = PROCESSOR_V850EA;
1405 else if (strncmp (TARGET_CPU, "v850e", 5) == 0)
1408 machine = bfd_mach_v850e;
1410 if (processor_mask == -1)
1411 processor_mask = PROCESSOR_V850E;
1414 /* end-sanitize-v850e */
1415 if (strncmp (TARGET_CPU, "v850", 4) == 0)
1420 if (processor_mask == -1)
1421 processor_mask = PROCESSOR_V850;
1424 /* xgettext:c-format */
1425 as_bad (_("Unable to determine default target processor from string: %s"),
1428 v850_hash = hash_new();
1430 /* Insert unique names into hash table. The V850 instruction set
1431 has many identical opcode names that have different opcodes based
1432 on the operands. This hash table then provides a quick index to
1433 the first opcode with a particular name in the opcode table. */
1438 if (strcmp (prev_name, op->name))
1440 prev_name = (char *) op->name;
1441 hash_insert (v850_hash, op->name, (char *) op);
1446 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
1448 /* start-sanitize-v850e */
1449 applicable = bfd_applicable_section_flags (stdoutput);
1451 call_table_data_section = subseg_new (".call_table_data", 0);
1452 bfd_set_section_flags (stdoutput, call_table_data_section,
1453 applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC
1454 | SEC_DATA | SEC_HAS_CONTENTS));
1456 call_table_text_section = subseg_new (".call_table_text", 0);
1457 bfd_set_section_flags (stdoutput, call_table_text_section,
1458 applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY
1461 /* Restore text section as the current default. */
1462 subseg_set (text_section, 0);
1463 /* end-sanitize-v850e */
1467 /* start-sanitize-v850e */
1468 static bfd_reloc_code_real_type
1469 handle_ctoff (const struct v850_operand * operand)
1471 if (operand == NULL)
1472 return BFD_RELOC_V850_CALLT_16_16_OFFSET;
1474 if ( operand->bits != 6
1475 || operand->shift != 0)
1477 as_bad (_("ctoff() relocation used on an instruction which does not support it"));
1478 return BFD_RELOC_64; /* Used to indicate an error condition. */
1481 return BFD_RELOC_V850_CALLT_6_7_OFFSET;
1483 /* end-sanitize-v850e */
1485 static bfd_reloc_code_real_type
1486 handle_sdaoff (const struct v850_operand * operand)
1488 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1489 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1490 /* start-sanitize-v850e */
1491 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1492 /* end-sanitize-v850e */
1494 if ( operand->bits != 16
1495 || operand->shift != 16)
1497 as_bad (_("sdaoff() relocation used on an instruction which does not support it"));
1498 return BFD_RELOC_64; /* Used to indicate an error condition. */
1501 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1504 static bfd_reloc_code_real_type
1505 handle_zdaoff (const struct v850_operand * operand)
1507 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1508 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1509 /* start-sanitize-v850e */
1510 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1511 /* end-sanitize-v850e */
1513 if ( operand->bits != 16
1514 || operand->shift != 16)
1516 as_bad (_("zdaoff() relocation used on an instruction which does not support it"));
1517 return BFD_RELOC_64; /* Used to indicate an error condition. */
1520 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1523 static bfd_reloc_code_real_type
1524 handle_tdaoff (const struct v850_operand * operand)
1526 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */
1527 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */
1528 /* start-sanitize-v850e */
1529 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */
1530 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */
1531 /* end-sanitize-v850e */
1532 if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
1534 if (operand->bits != 7)
1536 as_bad (_("tdaoff() relocation used on an instruction which does not support it"));
1537 return BFD_RELOC_64; /* Used to indicate an error condition. */
1540 return operand->insert != NULL
1541 ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */
1542 : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */
1545 /* Warning: The code in this function relies upon the definitions
1546 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1547 matching the hard coded values contained herein. */
1549 static bfd_reloc_code_real_type
1550 v850_reloc_prefix (const struct v850_operand * operand)
1552 boolean paren_skipped = false;
1555 /* Skip leading opening parenthesis. */
1556 if (* input_line_pointer == '(')
1558 ++ input_line_pointer;
1559 paren_skipped = true;
1562 #define CHECK_(name, reloc) \
1563 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1565 input_line_pointer += strlen (name); \
1569 CHECK_ ("hi0", BFD_RELOC_HI16);
1570 CHECK_ ("hi", BFD_RELOC_HI16_S);
1571 CHECK_ ("lo", BFD_RELOC_LO16);
1572 CHECK_ ("sdaoff", handle_sdaoff (operand));
1573 CHECK_ ("zdaoff", handle_zdaoff (operand));
1574 CHECK_ ("tdaoff", handle_tdaoff (operand));
1576 /* start-sanitize-v850e */
1577 CHECK_ ("hilo", BFD_RELOC_32);
1578 CHECK_ ("ctoff", handle_ctoff (operand));
1579 /* end-sanitize-v850e */
1581 /* Restore skipped parenthesis. */
1583 -- input_line_pointer;
1585 return BFD_RELOC_UNUSED;
1588 /* Insert an operand value into an instruction. */
1590 static unsigned long
1591 v850_insert_operand (insn, operand, val, file, line, str)
1593 const struct v850_operand * operand;
1599 if (operand->insert)
1601 const char * message = NULL;
1603 insn = operand->insert (insn, val, & message);
1604 if (message != NULL)
1606 if ((operand->flags & V850_OPERAND_SIGNED)
1607 && ! warn_signed_overflows
1608 && strstr (message, "out of range") != NULL)
1610 /* skip warning... */
1612 else if ((operand->flags & V850_OPERAND_SIGNED) == 0
1613 && ! warn_unsigned_overflows
1614 && strstr (message, "out of range") != NULL)
1616 /* skip warning... */
1620 if (file == (char *) NULL)
1621 as_warn ("%s: %s", str, message);
1623 as_warn_where (file, line, "%s: %s", str, message);
1627 if (file == (char *) NULL)
1630 as_warn_where (file, line, message);
1636 if (operand->bits != 32)
1641 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
1643 if (! warn_signed_overflows)
1644 max = (1 << operand->bits) - 1;
1646 max = (1 << (operand->bits - 1)) - 1;
1648 min = - (1 << (operand->bits - 1));
1652 max = (1 << operand->bits) - 1;
1654 if (! warn_unsigned_overflows)
1655 min = - (1 << (operand->bits - 1));
1660 if (val < (offsetT) min || val > (offsetT) max)
1662 /* xgettext:c-format */
1663 const char * err = _("operand out of range (%s not between %ld and %ld)");
1666 /* Restore min and mix to expected values for decimal ranges. */
1667 if ((operand->flags & V850_OPERAND_SIGNED)
1668 && ! warn_signed_overflows)
1669 max = (1 << (operand->bits - 1)) - 1;
1671 if (! (operand->flags & V850_OPERAND_SIGNED)
1672 && ! warn_unsigned_overflows)
1677 sprintf (buf, "%s: ", str);
1679 sprint_value (buf + strlen (buf), val);
1682 sprint_value (buf, val);
1684 if (file == (char *) NULL)
1685 as_warn (err, buf, min, max);
1687 as_warn_where (file, line, err, buf, min, max);
1691 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
1698 static char copy_of_instruction [128];
1705 char * start_of_operands;
1706 struct v850_opcode * opcode;
1707 struct v850_opcode * next_opcode;
1708 const unsigned char * opindex_ptr;
1712 unsigned long insn_size;
1716 boolean extra_data_after_insn = false;
1717 unsigned extra_data_len;
1718 unsigned long extra_data;
1719 char * saved_input_line_pointer;
1722 strncpy (copy_of_instruction, str, sizeof (copy_of_instruction) - 1);
1724 /* Get the opcode. */
1725 for (s = str; *s != '\0' && ! isspace (*s); s++)
1731 /* find the first opcode with the proper name */
1732 opcode = (struct v850_opcode *) hash_find (v850_hash, str);
1735 /* xgettext:c-format */
1736 as_bad (_("Unrecognized opcode: `%s'"), str);
1737 ignore_rest_of_line ();
1742 while (isspace (* str))
1745 start_of_operands = str;
1747 saved_input_line_pointer = input_line_pointer;
1751 const char * errmsg = NULL;
1755 if ((opcode->processors & processor_mask) == 0)
1757 errmsg = _("Target processor does not support this instruction.");
1764 insn = opcode->opcode;
1765 extra_data_after_insn = false;
1767 input_line_pointer = str = start_of_operands;
1769 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr ++)
1771 const struct v850_operand * operand;
1774 bfd_reloc_code_real_type reloc;
1776 if (next_opindex == 0)
1778 operand = & v850_operands[ * opindex_ptr ];
1782 operand = & v850_operands[ next_opindex ];
1788 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1791 if (operand->flags & V850_OPERAND_RELAX)
1794 /* Gather the operand. */
1795 hold = input_line_pointer;
1796 input_line_pointer = str;
1798 /* lo(), hi(), hi0(), etc... */
1799 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1801 /* This is a fake reloc, used to indicate an error condition. */
1802 if (reloc == BFD_RELOC_64)
1810 if (ex.X_op == O_constant)
1814 case BFD_RELOC_V850_ZDA_16_16_OFFSET:
1815 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]"
1819 case BFD_RELOC_LO16:
1821 /* Truncate, then sign extend the value. */
1822 ex.X_add_number = SEXT16 (ex.X_add_number);
1826 case BFD_RELOC_HI16:
1828 /* Truncate, then sign extend the value. */
1829 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1833 case BFD_RELOC_HI16_S:
1835 /* Truncate, then sign extend the value. */
1836 int temp = (ex.X_add_number >> 16) & 0xffff;
1838 temp += (ex.X_add_number >> 15) & 1;
1840 ex.X_add_number = SEXT16 (temp);
1844 /* start-sanitize-v850e */
1846 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1848 errmsg = _("immediate operand is too large");
1852 extra_data_after_insn = true;
1854 extra_data = ex.X_add_number;
1855 ex.X_add_number = 0;
1857 /* end-sanitize-v850e */
1860 fprintf (stderr, "reloc: %d\n", reloc);
1861 as_bad (_("AAARG -> unhandled constant reloc"));
1865 if (fc > MAX_INSN_FIXUPS)
1866 as_fatal (_("too many fixups"));
1868 fixups[ fc ].exp = ex;
1869 fixups[ fc ].opindex = * opindex_ptr;
1870 fixups[ fc ].reloc = reloc;
1875 /* start-sanitize-v850e */
1876 if (reloc == BFD_RELOC_32)
1878 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1880 errmsg = _("immediate operand is too large");
1884 extra_data_after_insn = true;
1886 extra_data = ex.X_add_number;
1888 /* end-sanitize-v850e */
1890 if (fc > MAX_INSN_FIXUPS)
1891 as_fatal (_("too many fixups"));
1893 fixups[ fc ].exp = ex;
1894 fixups[ fc ].opindex = * opindex_ptr;
1895 fixups[ fc ].reloc = reloc;
1903 if ((operand->flags & V850_OPERAND_REG) != 0)
1905 if (!register_name (& ex))
1907 errmsg = _("invalid register name");
1909 else if ((operand->flags & V850_NOT_R0)
1910 && ex.X_add_number == 0)
1912 errmsg = _("register r0 cannot be used here");
1914 /* Force an error message to be generated by
1915 skipping over any following potential matches
1920 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1922 if (!system_register_name (& ex, true
1923 /* start-sanitize-v850e */
1925 /* end-sanitize-v850e */
1928 errmsg = _("invalid system register name");
1931 else if ((operand->flags & V850_OPERAND_EP) != 0)
1933 char * start = input_line_pointer;
1934 char c = get_symbol_end ();
1936 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1938 /* Put things back the way we found them. */
1939 *input_line_pointer = c;
1940 input_line_pointer = start;
1941 errmsg = _("expected EP register");
1945 *input_line_pointer = c;
1946 str = input_line_pointer;
1947 input_line_pointer = hold;
1949 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1953 else if ((operand->flags & V850_OPERAND_CC) != 0)
1955 if (!cc_name (& ex))
1957 errmsg = _("invalid condition code name");
1960 /* start-sanitize-v850e */
1961 else if (operand->flags & V850E_PUSH_POP)
1963 errmsg = parse_register_list (& insn, operand);
1965 /* The parse_register_list() function has already done
1966 everything, so fake a dummy expression. */
1967 ex.X_op = O_constant;
1968 ex.X_add_number = 0;
1970 else if (operand->flags & V850E_IMMEDIATE16)
1974 if (ex.X_op != O_constant)
1975 errmsg = _("constant expression expected");
1976 else if (ex.X_add_number & 0xffff0000)
1978 if (ex.X_add_number & 0xffff)
1979 errmsg = _("constant too big to fit into instruction");
1980 else if ((insn & 0x001fffc0) == 0x00130780)
1981 ex.X_add_number >>= 16;
1983 errmsg = _("constant too big to fit into instruction");
1986 extra_data_after_insn = true;
1988 extra_data = ex.X_add_number;
1989 ex.X_add_number = 0;
1991 else if (operand->flags & V850E_IMMEDIATE32)
1995 if (ex.X_op != O_constant)
1996 errmsg = _("constant expression expected");
1998 extra_data_after_insn = true;
2000 extra_data = ex.X_add_number;
2001 ex.X_add_number = 0;
2003 /* end-sanitize-v850e */
2004 else if (register_name (& ex)
2005 && (operand->flags & V850_OPERAND_REG) == 0)
2010 /* It is possible that an alias has been defined that
2011 matches a register name. For example the code may
2012 include a ".set ZERO, 0" directive, which matches
2013 the register name "zero". Attempt to reparse the
2014 field as an expression, and only complain if we
2015 cannot generate a constant. */
2017 input_line_pointer = str;
2019 c = get_symbol_end ();
2021 if (symbol_find (str) != NULL)
2024 * input_line_pointer = c;
2025 input_line_pointer = str;
2029 if (ex.X_op != O_constant)
2031 /* If this register is actually occuring too early on
2032 the parsing of the instruction, (because another
2033 field is missing) then report this. */
2034 if (opindex_ptr[1] != 0
2035 && (v850_operands [opindex_ptr [1]].flags & V850_OPERAND_REG))
2036 errmsg = _("syntax error: value is missing before the register name");
2038 errmsg = _("syntax error: register not expected");
2040 /* If we created a symbol in the process of this test then
2041 delete it now, so that it will not be output with the real
2044 && ex.X_op == O_symbol)
2045 symbol_remove (ex.X_add_symbol,
2046 & symbol_rootP, & symbol_lastP);
2049 else if (system_register_name (& ex, false
2050 /* start-sanitize-v850e */
2052 /* end-sanitize-v850e */
2054 && (operand->flags & V850_OPERAND_SRG) == 0)
2056 errmsg = _("syntax error: system register not expected");
2058 else if (cc_name (&ex)
2059 && (operand->flags & V850_OPERAND_CC) == 0)
2061 errmsg = _("syntax error: condition code not expected");
2066 /* start-sanitize-v850e */
2068 If we are assembling a MOV instruction (or a CALLT.... :-)
2069 and the immediate value does not fit into the bits
2070 available then create a fake error so that the next MOV
2071 instruction will be selected. This one has a 32 bit
2074 if (((insn & 0x07e0) == 0x0200)
2075 && ex.X_op == O_constant
2076 && (ex.X_add_number < (- (1 << (operand->bits - 1)))
2077 || ex.X_add_number > ((1 << operand->bits) - 1)))
2078 errmsg = _("immediate operand is too large");
2079 /* end-sanitize-v850e */
2085 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n",
2086 insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
2091 errmsg = _("illegal operand");
2094 errmsg = _("missing operand");
2097 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
2099 errmsg = _("invalid operand");
2102 insn = v850_insert_operand (insn, operand, ex.X_add_number,
2104 copy_of_instruction);
2108 insn = v850_insert_operand (insn, operand, ex.X_add_number,
2110 copy_of_instruction);
2114 /* We need to generate a fixup for this expression. */
2115 if (fc >= MAX_INSN_FIXUPS)
2116 as_fatal (_("too many fixups"));
2118 fixups[ fc ].exp = ex;
2119 fixups[ fc ].opindex = * opindex_ptr;
2120 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
2126 str = input_line_pointer;
2127 input_line_pointer = hold;
2129 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
2138 next_opcode = opcode + 1;
2139 if (next_opcode->name != NULL
2140 && strcmp (next_opcode->name, opcode->name) == 0)
2142 opcode = next_opcode;
2144 /* Skip versions that are not supported by the target
2146 if ((opcode->processors & processor_mask) == 0)
2152 as_bad ("%s: %s", copy_of_instruction, errmsg);
2154 if (* input_line_pointer == ']')
2155 ++ input_line_pointer;
2157 ignore_rest_of_line ();
2158 input_line_pointer = saved_input_line_pointer;
2164 while (isspace (*str))
2168 /* xgettext:c-format */
2169 as_bad (_("junk at end of line: `%s'"), str);
2171 input_line_pointer = str;
2173 /* Write out the instruction. */
2175 if (relaxable && fc > 0)
2180 if (!strcmp (opcode->name, "br"))
2182 f = frag_var (rs_machine_dependent, 4, 2, 2,
2183 fixups[0].exp.X_add_symbol,
2184 fixups[0].exp.X_add_number,
2185 (char *)fixups[0].opindex);
2186 md_number_to_chars (f, insn, insn_size);
2187 md_number_to_chars (f + 2, 0, 2);
2191 f = frag_var (rs_machine_dependent, 6, 4, 0,
2192 fixups[0].exp.X_add_symbol,
2193 fixups[0].exp.X_add_number,
2194 (char *)fixups[0].opindex);
2195 md_number_to_chars (f, insn, insn_size);
2196 md_number_to_chars (f + 2, 0, 4);
2201 /* Four byte insns have an opcode with the two high bits on. */
2202 if ((insn & 0x0600) == 0x0600)
2207 /* start-sanitize-v850e */
2208 /* Special case: 32 bit MOV */
2209 if ((insn & 0xffe0) == 0x0620)
2211 /* end-sanitize-v850e */
2213 f = frag_more (insn_size);
2215 md_number_to_chars (f, insn, insn_size);
2217 if (extra_data_after_insn)
2219 f = frag_more (extra_data_len);
2221 md_number_to_chars (f, extra_data, extra_data_len);
2223 extra_data_after_insn = false;
2227 /* Create any fixups. At this point we do not use a
2228 bfd_reloc_code_real_type, but instead just use the
2229 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2230 handle fixups for any operand type, although that is admittedly
2231 not a very exciting feature. We pick a BFD reloc type in
2233 for (i = 0; i < fc; i++)
2235 const struct v850_operand * operand;
2236 bfd_reloc_code_real_type reloc;
2238 operand = & v850_operands[ fixups[i].opindex ];
2240 reloc = fixups[i].reloc;
2242 if (reloc != BFD_RELOC_UNUSED)
2244 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput,
2253 size = bfd_get_reloc_size (reloc_howto);
2255 /* XXX This will abort on an R_V850_8 reloc -
2256 is this reloc actually used ? */
2257 if (size != 2 && size != 4)
2260 address = (f - frag_now->fr_literal) + insn_size - size;
2262 if (reloc == BFD_RELOC_32)
2267 fixP = fix_new_exp (frag_now, address, size,
2269 reloc_howto->pc_relative,
2274 case BFD_RELOC_LO16:
2275 case BFD_RELOC_HI16:
2276 case BFD_RELOC_HI16_S:
2277 fixP->fx_no_overflow = 1;
2285 f - frag_now->fr_literal, 4,
2287 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2288 (bfd_reloc_code_real_type) (fixups[i].opindex
2289 + (int) BFD_RELOC_UNUSED)
2294 input_line_pointer = saved_input_line_pointer;
2298 /* If while processing a fixup, a reloc really needs to be created */
2299 /* then it is done here. */
2302 tc_gen_reloc (seg, fixp)
2308 reloc = (arelent *) xmalloc (sizeof (arelent));
2309 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
2310 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2311 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
2313 if (reloc->howto == (reloc_howto_type *) NULL)
2315 as_bad_where (fixp->fx_file, fixp->fx_line,
2316 /* xgettext:c-format */
2317 _("reloc %d not supported by object file format"),
2318 (int) fixp->fx_r_type);
2325 reloc->addend = fixp->fx_addnumber;
2330 /* Assume everything will fit in two bytes, then expand as necessary. */
2332 md_estimate_size_before_relax (fragp, seg)
2336 if (fragp->fr_subtype == 0)
2338 else if (fragp->fr_subtype == 2)
2346 v850_pcrel_from_section (fixp, section)
2350 /* If the symbol is undefined, or in a section other than our own,
2351 then let the linker figure it out. */
2352 if (fixp->fx_addsy != (symbolS *) NULL
2353 && (! S_IS_DEFINED (fixp->fx_addsy)
2354 || (S_GET_SEGMENT (fixp->fx_addsy) != section)))
2356 /* The symbol is undefined/not in our section.
2357 Let the linker figure it out. */
2361 return fixp->fx_frag->fr_address + fixp->fx_where;
2365 md_apply_fix3 (fixp, valuep, seg)
2373 if (fixp->fx_addsy == (symbolS *) NULL)
2378 else if (fixp->fx_pcrel)
2382 value = fixp->fx_offset;
2383 if (fixp->fx_subsy != (symbolS *) NULL)
2385 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
2386 value -= S_GET_VALUE (fixp->fx_subsy);
2389 /* We don't actually support subtracting a symbol. */
2390 as_bad_where (fixp->fx_file, fixp->fx_line,
2391 _("expression too complex"));
2396 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
2399 const struct v850_operand * operand;
2402 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
2403 operand = & v850_operands[ opindex ];
2405 /* Fetch the instruction, insert the fully resolved operand
2406 value, and stuff the instruction back again.
2408 Note the instruction has been stored in little endian
2410 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2412 insn = bfd_getl32 ((unsigned char *) where);
2413 insn = v850_insert_operand (insn, operand, (offsetT) value,
2414 fixp->fx_file, fixp->fx_line, NULL);
2415 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
2419 /* Nothing else to do here. */
2423 /* Determine a BFD reloc value based on the operand information.
2424 We are only prepared to turn a few of the operands into relocs. */
2426 if (operand->bits == 22)
2427 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
2428 else if (operand->bits == 9)
2429 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
2432 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2434 as_bad_where (fixp->fx_file, fixp->fx_line,
2435 _("unresolved expression that must be resolved"));
2440 else if (fixp->fx_done)
2442 /* We still have to insert the value into memory! */
2443 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2445 if (fixp->fx_size == 1)
2446 * where = value & 0xff;
2447 else if (fixp->fx_size == 2)
2448 bfd_putl16 (value & 0xffff, (unsigned char *) where);
2449 else if (fixp->fx_size == 4)
2450 bfd_putl32 (value, (unsigned char *) where);
2453 fixp->fx_addnumber = value;
2458 /* Parse a cons expression. We have to handle hi(), lo(), etc
2461 parse_cons_expression_v850 (exp)
2464 /* See if there's a reloc prefix like hi() we have to handle. */
2465 hold_cons_reloc = v850_reloc_prefix (NULL);
2467 /* Do normal expression parsing. */
2471 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2472 found a reloc prefix, then we use that reloc, else we choose an
2473 appropriate one based on the size of the expression. */
2475 cons_fix_new_v850 (frag, where, size, exp)
2481 if (hold_cons_reloc == BFD_RELOC_UNUSED)
2484 hold_cons_reloc = BFD_RELOC_32;
2486 hold_cons_reloc = BFD_RELOC_16;
2488 hold_cons_reloc = BFD_RELOC_8;
2492 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
2494 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);