1 /* tc-v850.c -- Assembler code for the NEC V850
2 Copyright (C) 1996, 1997 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"
27 /* sign-extend a 16-bit number */
28 #define SEXT16(x) ((((x) & 0xffff) ^ (~ 0x7fff)) + 0x8000)
30 /* Temporarily holds the reloc in a cons expression. */
31 static bfd_reloc_code_real_type hold_cons_reloc;
33 /* Set to TRUE if we want to be pedantic about signed overflows. */
34 static boolean warn_signed_overflows = FALSE;
35 static boolean warn_unsigned_overflows = FALSE;
37 /* Indicates the target processor type. */
38 static int machine = TARGET_MACHINE;
41 /* Structure to hold information about predefined registers. */
48 /* Generic assembler global variables which must be defined by all targets. */
50 /* Characters which always start a comment. */
51 const char comment_chars[] = "#";
53 /* Characters which start a comment at the beginning of a line. */
54 const char line_comment_chars[] = ";#";
56 /* Characters which may be used to separate multiple commands on a
58 const char line_separator_chars[] = ";";
60 /* Characters which are used to indicate an exponent in a floating
62 const char EXP_CHARS[] = "eE";
64 /* Characters which mean that a number is a floating point constant,
66 const char FLT_CHARS[] = "dD";
69 const relax_typeS md_relax_table[] = {
71 {0x1fffff, -0x200000, 6, 0},
75 static segT sdata_section = NULL;
76 static segT tdata_section = NULL;
77 static segT zdata_section = NULL;
78 static segT sbss_section = NULL;
79 static segT tbss_section = NULL;
80 static segT zbss_section = NULL;
81 static segT rosdata_section = NULL;
82 static segT rozdata_section = NULL;
86 static unsigned long v850_insert_operand
87 PARAMS ((unsigned long insn, const struct v850_operand *operand,
88 offsetT val, char *file, unsigned int line));
92 #define MAX_INSN_FIXUPS (5)
97 bfd_reloc_code_real_type reloc;
99 struct v850_fixup fixups[MAX_INSN_FIXUPS];
103 v850_sdata (int ignore)
105 subseg_set (sdata_section, (subsegT) get_absolute_expression ());
107 demand_empty_rest_of_line ();
111 v850_tdata (int ignore)
113 subseg_set (tdata_section, (subsegT) get_absolute_expression ());
115 demand_empty_rest_of_line ();
119 v850_zdata (int ignore)
121 subseg_set (zdata_section, (subsegT) get_absolute_expression ());
123 demand_empty_rest_of_line ();
127 v850_sbss (int ignore)
129 subseg_set (sbss_section, (subsegT) get_absolute_expression ());
131 demand_empty_rest_of_line ();
135 v850_tbss (int ignore)
137 subseg_set (tbss_section, (subsegT) get_absolute_expression ());
139 demand_empty_rest_of_line ();
143 v850_zbss (int ignore)
145 subseg_set (zbss_section, (subsegT) get_absolute_expression ());
147 demand_empty_rest_of_line ();
151 v850_rosdata (int ignore)
153 subseg_set (rosdata_section, (subsegT) get_absolute_expression ());
155 demand_empty_rest_of_line ();
159 v850_rozdata (int ignore)
161 subseg_set (rozdata_section, (subsegT) get_absolute_expression ());
163 demand_empty_rest_of_line ();
167 v850_section (int arg)
172 for (ptr = input_line_pointer; * ptr != '\n' && * ptr != 0; ptr ++)
173 if (* ptr == ',' && ptr[1] == '.')
179 obj_elf_section (arg);
185 v850_bss (int ignore)
187 register int temp = get_absolute_expression ();
189 obj_elf_section_change_hook();
191 subseg_set (bss_section, (subsegT) temp);
193 demand_empty_rest_of_line ();
197 v850_offset (int ignore)
199 int temp = get_absolute_expression ();
201 temp -= frag_now_fix();
204 (void) frag_more (temp);
206 demand_empty_rest_of_line ();
210 set_machine (int number)
213 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
216 /* The target specific pseudo-ops which we support. */
217 const pseudo_typeS md_pseudo_table[] =
219 {"sdata", v850_sdata, 0},
220 {"tdata", v850_tdata, 0},
221 {"zdata", v850_zdata, 0},
222 {"sbss", v850_sbss, 0},
223 {"tbss", v850_tbss, 0},
224 {"zbss", v850_zbss, 0},
225 {"rosdata", v850_rosdata, 0},
226 {"rozdata", v850_rozdata, 0},
227 {"bss", v850_bss, 0},
228 {"offset", v850_offset, 0},
229 {"section", v850_section, 0},
231 {"v850", set_machine, 0},
232 /* start-sanitize-v850e */
233 {"v850e", set_machine, bfd_mach_v850e},
234 /* end-sanitize-v850e */
235 /* start-sanitize-v850eq */
236 {"v850eq", set_machine, bfd_mach_v850eq},
237 /* end-sanitize-v850eq */
241 /* Opcode hash table. */
242 static struct hash_control *v850_hash;
244 /* This table is sorted. Suitable for searching by a binary search. */
245 static const struct reg_name pre_defined_registers[] =
247 { "ep", 30 }, /* ep - element ptr */
248 { "gp", 4 }, /* gp - global ptr */
249 { "hp", 2 }, /* hp - handler stack ptr */
250 { "lp", 31 }, /* lp - link ptr */
283 { "sp", 3 }, /* sp - stack ptr */
284 { "tp", 5 }, /* tp - text ptr */
287 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
290 static const struct reg_name system_registers[] =
292 /* start-sanitize-v850e */
298 /* end-sanitize-v850e */
306 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
308 static const struct reg_name cc_names[] =
333 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
335 /* reg_name_search does a binary search of the given register table
336 to see if "name" is a valid regiter name. Returns the register
337 number from the array on success, or -1 on failure. */
340 reg_name_search (regs, regcount, name)
341 const struct reg_name * regs;
345 int middle, low, high;
353 middle = (low + high) / 2;
354 cmp = strcasecmp (name, regs[middle].name);
360 return regs[middle].value;
367 /* Summary of register_name().
369 * in: Input_line_pointer points to 1st char of operand.
371 * out: A expressionS.
372 * The operand may have been a register: in this case, X_op == O_register,
373 * X_add_number is set to the register number, and truth is returned.
374 * Input_line_pointer->(next non-blank) char after operand, or is in
375 * its original state.
378 register_name (expressionP)
379 expressionS * expressionP;
386 /* Find the spelling of the operand */
387 start = name = input_line_pointer;
389 c = get_symbol_end ();
391 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
393 * input_line_pointer = c; /* put back the delimiting char */
395 /* look to see if it's in the register table */
398 expressionP->X_op = O_register;
399 expressionP->X_add_number = reg_number;
401 /* make the rest nice */
402 expressionP->X_add_symbol = NULL;
403 expressionP->X_op_symbol = NULL;
409 /* reset the line as if we had not done anything */
410 input_line_pointer = start;
416 /* Summary of system_register_name().
418 * in: Input_line_pointer points to 1st char of operand.
420 * out: A expressionS.
421 * The operand may have been a register: in this case, X_op == O_register,
422 * X_add_number is set to the register number, and truth is returned.
423 * Input_line_pointer->(next non-blank) char after operand, or is in
424 * its original state.
427 system_register_name (expressionP, accept_numbers)
428 expressionS * expressionP;
429 boolean accept_numbers;
436 /* Find the spelling of the operand */
437 start = name = input_line_pointer;
439 c = get_symbol_end ();
440 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name);
442 * input_line_pointer = c; /* put back the delimiting char */
447 input_line_pointer = start; /* reset input_line pointer */
449 if (isdigit (* input_line_pointer))
450 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
452 /* Make sure that the register number is allowable. */
455 /* start-sanitize-v850e */
458 /* end-sanitize-v850e */
465 /* look to see if it's in the register table */
468 expressionP->X_op = O_register;
469 expressionP->X_add_number = reg_number;
471 /* make the rest nice */
472 expressionP->X_add_symbol = NULL;
473 expressionP->X_op_symbol = NULL;
479 /* reset the line as if we had not done anything */
480 input_line_pointer = start;
486 /* Summary of cc_name().
488 * in: Input_line_pointer points to 1st char of operand.
490 * out: A expressionS.
491 * The operand may have been a register: in this case, X_op == O_register,
492 * X_add_number is set to the register number, and truth is returned.
493 * Input_line_pointer->(next non-blank) char after operand, or is in
494 * its original state.
497 cc_name (expressionP)
498 expressionS *expressionP;
505 /* Find the spelling of the operand */
506 start = name = input_line_pointer;
508 c = get_symbol_end ();
509 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name);
511 * input_line_pointer = c; /* put back the delimiting char */
513 /* look to see if it's in the register table */
516 expressionP->X_op = O_constant;
517 expressionP->X_add_number = reg_number;
519 /* make the rest nice */
520 expressionP->X_add_symbol = NULL;
521 expressionP->X_op_symbol = NULL;
527 /* reset the line as if we had not done anything */
528 input_line_pointer = start;
535 skip_white_space (void)
537 while ( * input_line_pointer == ' '
538 || * input_line_pointer == '\t')
539 ++ input_line_pointer;
542 /* start-sanitize-v850e */
543 /* Summary of parse_register_list ().
545 * in: Input_line_pointer points to 1st char of a list of registers.
546 * insn is the partially constructed instruction.
547 * operand is the operand being inserted.
549 * out: True if the parse completed successfully, False otherwise.
550 * If the parse completes the correct bit fields in the
551 * instruction will be filled in.
553 * Parses register lists with the syntax:
561 * and also parses constant epxressions whoes bits indicate the
562 * registers in the lists. The LSB in the expression refers to
563 * the lowest numbered permissable register in the register list,
564 * and so on upwards. System registers are considered to be very
571 unsigned long * insn,
572 const struct v850_operand * operand
575 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 };
576 /* start-sanitize-v850eq */
577 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 };
578 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 };
579 /* end-sanitize-v850eq */
584 /* Select a register array to parse. */
585 switch (operand->shift)
587 case 0xffe00001: regs = type1_regs; break;
588 /* start-sanitize-v850eq */
589 case 0xfff8000f: regs = type2_regs; break;
590 case 0xfff8001f: regs = type3_regs; break;
591 /* end-sanitize-v850eq */
593 as_bad ("unknown operand shift: %x\n", operand->shift );
594 return "internal failure in parse_register_list";
599 /* If the expression starts with a curly brace it is a register list.
600 Otherwise it is a constant expression ,whoes bits indicate which
601 registers are to be included in the list. */
603 if (* input_line_pointer != '{')
611 if (exp.X_op != O_constant)
612 return "constant expression or register list expected";
614 /* start-sanitize-v850eq */
615 if (regs == type1_regs)
616 /* end-sanitize-v850eq */
618 if (exp.X_add_number & 0xFFFFF000)
619 return "high bits set in register list expression";
621 for (reg = 20; reg < 32; reg ++)
622 if (exp.X_add_number & (1 << (reg - 20)))
624 for (i = 0; i < 32; i++)
629 /* start-sanitize-v850eq */
630 else if (regs == type2_regs)
632 if (exp.X_add_number & 0xFFFE0000)
633 return "high bits set in register list expression";
635 for (reg = 1; reg < 16; reg ++)
636 if (exp.X_add_number & (1 << (reg - 1)))
638 for (i = 0; i < 32; i++)
643 if (exp.X_add_number & (1 << 15))
646 if (exp.X_add_number & (1 << 16))
649 else /* regs == type3_regs */
651 if (exp.X_add_number & 0xFFFE0000)
652 return "high bits set in register list expression";
654 for (reg = 16; reg < 32; reg ++)
655 if (exp.X_add_number & (1 << (reg - 16)))
657 for (i = 0; i < 32; i++)
662 if (exp.X_add_number & (1 << 16))
665 /* end-sanitize-v850eq */
670 input_line_pointer ++;
672 /* Parse the register list until a terminator (closing curly brace or new-line) is found. */
675 if (register_name (& exp))
679 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
680 for (i = 0; i < 32; i++)
682 if (regs[ i ] == exp.X_add_number)
691 return "illegal register included in list";
694 else if (system_register_name (& exp, true))
696 if (regs == type1_regs)
698 return "system registers cannot be included in list";
700 else if (exp.X_add_number == 5)
702 if (regs == type2_regs)
703 return "PSW cannot be included in list";
710 else if (* input_line_pointer == '}')
712 input_line_pointer ++;
715 else if (* input_line_pointer == ',')
717 input_line_pointer ++;
720 else if (* input_line_pointer == '-')
722 /* We have encountered a range of registers: rX - rY */
727 ++ input_line_pointer;
729 /* Get the second register in the range. */
730 if (! register_name (& exp2))
732 return "second register should follow dash in register list";
733 exp2.X_add_number = exp.X_add_number;
736 /* Add the rest of the registers in the range. */
737 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
741 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
742 for (i = 0; i < 32; i++)
753 return "illegal register included in list";
767 /* end-sanitize-v850e */
769 CONST char * md_shortopts = "m:";
771 struct option md_longopts[] =
773 {NULL, no_argument, NULL, 0}
775 size_t md_longopts_size = sizeof md_longopts;
779 md_show_usage (stream)
782 fprintf (stream, "V850 options:\n");
783 fprintf (stream, "\t-wsigned_overflow Warn if signed immediate values overflow\n");
784 fprintf (stream, "\t-wunsigned_overflow Warn if unsigned immediate values overflow\n");
785 fprintf (stream, "\t-mv850 The code is targeted at the v850\n");
786 /* start-sanitize-v850e */
787 fprintf (stream, "\t-mv850e The code is targeted at the v850e\n");
788 /* end-sanitize-v850e */
789 /* start-sanitize-v850eq */
790 fprintf (stream, "\t-mv850eq The code is targeted at the v850eq\n");
791 /* end-sanitize-v850eq */
795 md_parse_option (c, arg)
802 if (strcmp (arg, "signed_overflow") == 0)
804 warn_signed_overflows = TRUE;
807 else if (strcmp (arg, "unsigned_overflow") == 0)
809 warn_unsigned_overflows = TRUE;
815 if (strcmp (arg, "v850") == 0)
820 /* start-sanitize-v850e */
821 else if (strcmp (arg, "v850e") == 0)
823 machine = bfd_mach_v850e;
826 /* end-sanitize-v850e */
827 /* start-sanitize-v850eq */
828 else if (strcmp (arg, "v850eq") == 0)
830 machine = bfd_mach_v850eq;
833 /* end-sanitize-v850eq */
841 md_undefined_symbol (name)
848 md_atof (type, litp, sizep)
854 LITTLENUM_TYPE words[4];
870 return "bad call to md_atof";
873 t = atof_ieee (input_line_pointer, type, words);
875 input_line_pointer = t;
879 for (i = prec - 1; i >= 0; i--)
881 md_number_to_chars (litp, (valueT) words[i], 2);
891 md_convert_frag (abfd, sec, fragP)
896 subseg_change (sec, 0);
897 if (fragP->fr_subtype == 0)
899 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
900 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
904 else if (fragP->fr_subtype == 1)
906 /* Reverse the condition of the first branch. */
907 fragP->fr_literal[0] &= 0xf7;
908 /* Mask off all the displacement bits. */
909 fragP->fr_literal[0] &= 0x8f;
910 fragP->fr_literal[1] &= 0x07;
911 /* Now set the displacement bits so that we branch
912 around the unconditional branch. */
913 fragP->fr_literal[0] |= 0x30;
915 /* Now create the unconditional branch + fixup to the final
917 md_number_to_chars (&fragP->fr_literal[2], 0x00000780, 4);
918 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
919 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
928 md_section_align (seg, addr)
932 int align = bfd_get_section_alignment (stdoutput, seg);
933 return ((addr + (1 << align) - 1) & (-1 << align));
939 char * prev_name = "";
940 register const struct v850_opcode * op;
944 v850_hash = hash_new();
946 /* Insert unique names into hash table. The V850 instruction set
947 has many identical opcode names that have different opcodes based
948 on the operands. This hash table then provides a quick index to
949 the first opcode with a particular name in the opcode table. */
954 if (strcmp (prev_name, op->name))
956 prev_name = (char *) op->name;
957 hash_insert (v850_hash, op->name, (char *) op);
962 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
964 applicable = bfd_applicable_section_flags (stdoutput);
966 sdata_section = subseg_new (".sdata", 0);
967 bfd_set_section_flags (stdoutput, sdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
969 tdata_section = subseg_new (".tdata", 0);
970 bfd_set_section_flags (stdoutput, tdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
972 zdata_section = subseg_new (".zdata", 0);
973 bfd_set_section_flags (stdoutput, zdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
975 sbss_section = subseg_new (".sbss", 0);
976 bfd_set_section_flags (stdoutput, sbss_section, applicable & SEC_ALLOC);
978 tbss_section = subseg_new (".tbss", 0);
979 bfd_set_section_flags (stdoutput, tbss_section, applicable & SEC_ALLOC);
981 zbss_section = subseg_new (".zbss", 0);
982 bfd_set_section_flags (stdoutput, zbss_section, applicable & SEC_ALLOC);
984 rosdata_section = subseg_new (".rosdata", 0);
985 bfd_set_section_flags (stdoutput, rosdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
987 rozdata_section = subseg_new (".rozdata", 0);
988 bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
992 /* Warning: The code in this function relies upon the definitions
993 in the v850_operands[] array (defined in opcodes/v850-opc.c)
994 matching the hard coded values contained herein. */
996 static bfd_reloc_code_real_type
997 v850_reloc_prefix (const struct v850_operand * operand)
999 boolean paren_skipped = false;
1002 /* Skip leading opening parenthesis. */
1003 if (* input_line_pointer == '(')
1005 ++ input_line_pointer;
1006 paren_skipped = true;
1009 if (strncmp (input_line_pointer, "hi0(", 4) == 0)
1011 input_line_pointer += 3;
1012 return BFD_RELOC_HI16;
1014 if (strncmp (input_line_pointer, "hi(", 3) == 0)
1016 input_line_pointer += 2;
1017 return BFD_RELOC_HI16_S;
1019 if (strncmp (input_line_pointer, "lo(", 3) == 0)
1021 input_line_pointer += 2;
1022 return BFD_RELOC_LO16;
1024 /* start-sanitize-v850e */
1025 if (strncmp (input_line_pointer, "hilo(", 5) == 0)
1027 input_line_pointer += 4;
1028 return BFD_RELOC_32;
1030 /* end-sanitize-v850e */
1032 if (strncmp (input_line_pointer, "sdaoff(", 7) == 0)
1034 input_line_pointer += 6;
1036 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1037 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1038 /* start-sanitize-v850e */
1039 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1040 /* end-sanitize-v850e */
1042 assert (operand->bits == 16);
1043 assert (operand->shift == 16);
1045 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1048 if (strncmp (input_line_pointer, "zdaoff(", 7) == 0)
1050 input_line_pointer += 6;
1052 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1053 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1054 /* start-sanitize-v850e */
1055 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1056 /* end-sanitize-v850e */
1058 assert (operand->bits == 16);
1059 assert (operand->shift == 16);
1061 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1064 if (strncmp (input_line_pointer, "tdaoff(", 7) == 0)
1066 input_line_pointer += 6;
1068 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET;
1069 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET;
1070 /* start-sanitize-v850e */
1071 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET;
1072 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET;
1073 /* end-sanitize-v850e */
1075 assert (operand->bits == 7);
1077 return operand->insert != NULL ? BFD_RELOC_V850_TDA_7_8_OFFSET : BFD_RELOC_V850_TDA_7_7_OFFSET;
1081 /* Restore skipped character. */
1082 -- input_line_pointer;
1084 return BFD_RELOC_UNUSED;
1092 char * start_of_operands;
1093 struct v850_opcode * opcode;
1094 struct v850_opcode * next_opcode;
1095 const unsigned char * opindex_ptr;
1099 unsigned long insn_size;
1103 boolean extra_data_after_insn = false;
1104 unsigned extra_data_len;
1105 unsigned long extra_data;
1106 char * saved_input_line_pointer;
1108 /* Get the opcode. */
1109 for (s = str; *s != '\0' && ! isspace (*s); s++)
1115 /* find the first opcode with the proper name */
1116 opcode = (struct v850_opcode *)hash_find (v850_hash, str);
1119 as_bad ("Unrecognized opcode: `%s'", str);
1120 ignore_rest_of_line ();
1125 while (isspace (* str))
1128 start_of_operands = str;
1130 saved_input_line_pointer = input_line_pointer;
1134 const char * errmsg = NULL;
1140 insn = opcode->opcode;
1141 extra_data_after_insn = false;
1143 input_line_pointer = str = start_of_operands;
1145 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1147 const struct v850_operand * operand;
1150 bfd_reloc_code_real_type reloc;
1152 if (next_opindex == 0)
1154 operand = & v850_operands[ * opindex_ptr ];
1158 operand = & v850_operands[ next_opindex ];
1164 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1167 if (operand->flags & V850_OPERAND_RELAX)
1170 /* Gather the operand. */
1171 hold = input_line_pointer;
1172 input_line_pointer = str;
1174 /* fprintf (stderr, "operand: %s index = %d, opcode = %s\n", input_line_pointer, opindex_ptr - opcode->operands, opcode->name ); */
1176 /* lo(), hi(), hi0(), etc... */
1177 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1181 if (ex.X_op == O_constant)
1185 case BFD_RELOC_LO16:
1187 /* Truncate, then sign extend the value. */
1188 ex.X_add_number = SEXT16 (ex.X_add_number);
1192 case BFD_RELOC_HI16:
1194 /* Truncate, then sign extend the value. */
1195 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1199 case BFD_RELOC_HI16_S:
1201 /* Truncate, then sign extend the value. */
1202 int temp = (ex.X_add_number >> 16) & 0xffff;
1204 temp += (ex.X_add_number >> 15) & 1;
1206 ex.X_add_number = SEXT16 (temp);
1210 /* start-sanitize-v850e */
1212 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1214 errmsg = "use bigger instruction";
1218 extra_data_after_insn = true;
1220 extra_data = ex.X_add_number;
1221 ex.X_add_number = 0;
1223 /* end-sanitize-v850e */
1226 as_bad ( "AAARG -> unhandled constant reloc");
1230 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1235 if (reloc == BFD_RELOC_32)
1237 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1239 errmsg = "use bigger instruction";
1243 extra_data_after_insn = true;
1245 extra_data = ex.X_add_number;
1246 ex.X_add_number = 0;
1249 if (fc > MAX_INSN_FIXUPS)
1250 as_fatal ("too many fixups");
1252 fixups[ fc ].exp = ex;
1253 fixups[ fc ].opindex = * opindex_ptr;
1254 fixups[ fc ].reloc = reloc;
1262 if ((operand->flags & V850_OPERAND_REG) != 0)
1264 if (!register_name (& ex))
1266 errmsg = "invalid register name";
1269 if ((operand->flags & V850_NOT_R0)
1270 && ex.X_add_number == 0)
1272 errmsg = "register r0 cannot be used here";
1275 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1277 if (!system_register_name (& ex, true))
1279 errmsg = "invalid system register name";
1282 else if ((operand->flags & V850_OPERAND_EP) != 0)
1284 char * start = input_line_pointer;
1285 char c = get_symbol_end ();
1287 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1289 /* Put things back the way we found them. */
1290 *input_line_pointer = c;
1291 input_line_pointer = start;
1292 errmsg = "expected EP register";
1296 *input_line_pointer = c;
1297 str = input_line_pointer;
1298 input_line_pointer = hold;
1300 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1304 else if ((operand->flags & V850_OPERAND_CC) != 0)
1306 if (!cc_name (& ex))
1308 errmsg = "invalid condition code name";
1311 /* start-sanitize-v850e */
1312 else if (operand->flags & V850E_PUSH_POP)
1314 errmsg = parse_register_list (& insn, operand);
1316 /* The parse_register_list() function has already done everything, so fake a dummy expression. */
1317 ex.X_op = O_constant;
1318 ex.X_add_number = 0;
1320 else if (operand->flags & V850E_IMMEDIATE16)
1324 if (ex.X_op != O_constant)
1325 errmsg = "constant expression expected";
1326 else if (ex.X_add_number & 0xffff0000)
1328 if (ex.X_add_number & 0xffff)
1329 errmsg = "constant too big to fit into instruction";
1330 else if ((insn & 0x001fffc0) == 0x00130780)
1331 ex.X_add_number >>= 16;
1333 errmsg = "constant too big to fit into instruction";
1336 extra_data_after_insn = true;
1338 extra_data = ex.X_add_number;
1339 ex.X_add_number = 0;
1341 else if (operand->flags & V850E_IMMEDIATE32)
1345 if (ex.X_op != O_constant)
1346 errmsg = "constant expression expected";
1348 extra_data_after_insn = true;
1350 extra_data = ex.X_add_number;
1351 ex.X_add_number = 0;
1353 /* end-sanitize-v850e */
1354 else if (register_name (&ex)
1355 && (operand->flags & V850_OPERAND_REG) == 0)
1357 errmsg = "syntax error: register not expected";
1359 else if (system_register_name (& ex, false)
1360 && (operand->flags & V850_OPERAND_SRG) == 0)
1362 errmsg = "syntax error: system register not expected";
1364 else if (cc_name (&ex)
1365 && (operand->flags & V850_OPERAND_CC) == 0)
1367 errmsg = "syntax error: condition code not expected";
1372 /* start-sanitize-v850e */
1374 If we are assembling a MOV instruction (or a CALLT.... :-)
1375 and the immediate value does not fit into the bits available
1376 then create a fake error so that the next MOV instruction
1377 will be selected. This one has a 32 bit immediate field. */
1379 if (((insn & 0x07e0) == 0x0200)
1380 && ex.X_op == O_constant
1381 && (ex.X_add_number < (- (1 << (operand->bits - 1))) || ex.X_add_number > ((1 << operand->bits) - 1)))
1382 errmsg = "use bigger instruction";
1383 /* end-sanitize-v850e */
1389 /* fprintf (stderr, "insn: %x, operand %d, op: %d, add_number: %d\n", insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number ); */
1394 errmsg = "illegal operand";
1397 errmsg = "missing operand";
1400 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
1402 errmsg = "invalid operand";
1405 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1410 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1415 /* We need to generate a fixup for this expression. */
1416 if (fc >= MAX_INSN_FIXUPS)
1417 as_fatal ("too many fixups");
1419 fixups[ fc ].exp = ex;
1420 fixups[ fc ].opindex = * opindex_ptr;
1421 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
1427 str = input_line_pointer;
1428 input_line_pointer = hold;
1430 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
1439 next_opcode = opcode + 1;
1440 if (next_opcode->name != NULL && strcmp (next_opcode->name, opcode->name) == 0)
1442 opcode = next_opcode;
1447 ignore_rest_of_line ();
1448 input_line_pointer = saved_input_line_pointer;
1454 while (isspace (*str))
1458 as_bad ("junk at end of line: `%s'", str);
1460 input_line_pointer = str;
1462 /* Write out the instruction.
1464 Four byte insns have an opcode with the two high bits on. */
1465 if (relaxable && fc > 0)
1467 f = frag_var (rs_machine_dependent, 6, 4, 0,
1468 fixups[0].exp.X_add_symbol,
1469 fixups[0].exp.X_add_number,
1470 (char *)fixups[0].opindex);
1472 md_number_to_chars (f, insn, insn_size);
1473 md_number_to_chars (f + 2, 0, 4);
1478 if ((insn & 0x0600) == 0x0600)
1483 /* start-sanitize-v850e */
1484 /* Special case: 32 bit MOV */
1485 if ((insn & 0xffe0) == 0x0620)
1487 /* end_sanitize-v850e */
1489 f = frag_more (insn_size);
1491 md_number_to_chars (f, insn, insn_size);
1493 if (extra_data_after_insn)
1495 f = frag_more (extra_data_len);
1497 md_number_to_chars (f, extra_data, extra_data_len);
1499 extra_data_after_insn = false;
1503 /* Create any fixups. At this point we do not use a
1504 bfd_reloc_code_real_type, but instead just use the
1505 BFD_RELOC_UNUSED plus the operand index. This lets us easily
1506 handle fixups for any operand type, although that is admittedly
1507 not a very exciting feature. We pick a BFD reloc type in
1509 for (i = 0; i < fc; i++)
1511 const struct v850_operand * operand;
1512 bfd_reloc_code_real_type reloc;
1514 operand = & v850_operands[ fixups[i].opindex ];
1516 reloc = fixups[i].reloc;
1518 if (reloc != BFD_RELOC_UNUSED)
1520 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1528 size = bfd_get_reloc_size (reloc_howto);
1530 if (size != 2 && size != 4) /* XXX this will abort on an R_V850_8 reloc - is this reloc actually used ? */
1533 address = (f - frag_now->fr_literal) + insn_size - size;
1535 if (reloc == BFD_RELOC_32)
1540 fixP = fix_new_exp (frag_now, address, size,
1542 reloc_howto->pc_relative,
1547 case BFD_RELOC_LO16:
1548 case BFD_RELOC_HI16:
1549 case BFD_RELOC_HI16_S:
1550 fixP->fx_no_overflow = 1;
1558 f - frag_now->fr_literal, 4,
1560 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
1561 (bfd_reloc_code_real_type) (fixups[i].opindex + (int) BFD_RELOC_UNUSED)
1566 input_line_pointer = saved_input_line_pointer;
1570 /* If while processing a fixup, a reloc really needs to be created */
1571 /* then it is done here. */
1574 tc_gen_reloc (seg, fixp)
1580 reloc = (arelent *) xmalloc (sizeof (arelent));
1581 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
1582 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
1583 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
1585 if (reloc->howto == (reloc_howto_type *) NULL)
1587 as_bad_where (fixp->fx_file, fixp->fx_line,
1588 "reloc %d not supported by object file format", (int)fixp->fx_r_type);
1595 reloc->addend = fixp->fx_addnumber;
1600 /* Assume everything will fit in two bytes, then expand as necessary. */
1602 md_estimate_size_before_relax (fragp, seg)
1611 md_pcrel_from (fixp)
1614 /* If the symbol is undefined, or in a section other than our own,
1615 then let the linker figure it out. */
1616 if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
1618 /* The symbol is undefined. Let the linker figure it out. */
1621 return fixp->fx_frag->fr_address + fixp->fx_where;
1625 md_apply_fix3 (fixp, valuep, seg)
1633 if (fixp->fx_addsy == (symbolS *) NULL)
1638 else if (fixp->fx_pcrel)
1642 value = fixp->fx_offset;
1643 if (fixp->fx_subsy != (symbolS *) NULL)
1645 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
1646 value -= S_GET_VALUE (fixp->fx_subsy);
1649 /* We don't actually support subtracting a symbol. */
1650 as_bad_where (fixp->fx_file, fixp->fx_line,
1651 "expression too complex");
1656 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
1659 const struct v850_operand * operand;
1662 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
1663 operand = & v850_operands[ opindex ];
1665 /* Fetch the instruction, insert the fully resolved operand
1666 value, and stuff the instruction back again.
1668 Note the instruction has been stored in little endian
1670 where = fixp->fx_frag->fr_literal + fixp->fx_where;
1672 insn = bfd_getl32 ((unsigned char *) where);
1673 insn = v850_insert_operand (insn, operand, (offsetT) value,
1674 fixp->fx_file, fixp->fx_line);
1675 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
1679 /* Nothing else to do here. */
1683 /* Determine a BFD reloc value based on the operand information.
1684 We are only prepared to turn a few of the operands into relocs. */
1686 if (operand->bits == 22)
1687 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
1688 else if (operand->bits == 9)
1689 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
1692 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
1694 as_bad_where(fixp->fx_file, fixp->fx_line,
1695 "unresolved expression that must be resolved");
1700 else if (fixp->fx_done)
1702 /* We still have to insert the value into memory! */
1703 where = fixp->fx_frag->fr_literal + fixp->fx_where;
1704 if (fixp->fx_size == 1)
1705 *where = value & 0xff;
1706 else if (fixp->fx_size == 2)
1707 bfd_putl16 (value & 0xffff, (unsigned char *) where);
1708 else if (fixp->fx_size == 4)
1709 bfd_putl32 (value, (unsigned char *) where);
1712 fixp->fx_addnumber = value;
1717 /* Insert an operand value into an instruction. */
1719 static unsigned long
1720 v850_insert_operand (insn, operand, val, file, line)
1722 const struct v850_operand * operand;
1727 if (operand->insert)
1729 const char * message = NULL;
1731 insn = (*operand->insert) (insn, val, & message);
1732 if (message != NULL)
1734 if (file == (char *) NULL)
1737 as_warn_where (file, line, message);
1742 if (operand->bits != 32)
1747 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
1749 if (! warn_signed_overflows)
1750 max = (1 << operand->bits) - 1;
1752 max = (1 << (operand->bits - 1)) - 1;
1754 min = - (1 << (operand->bits - 1));
1758 max = (1 << operand->bits) - 1;
1760 if (! warn_unsigned_overflows)
1761 min = - (1 << (operand->bits - 1));
1768 if (test < (offsetT) min || test > (offsetT) max)
1770 const char * err = "operand out of range (%s not between %ld and %ld)";
1773 sprint_value (buf, test);
1774 if (file == (char *) NULL)
1775 as_warn (err, buf, min, max);
1777 as_warn_where (file, line, err, buf, min, max);
1781 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
1787 /* Parse a cons expression. We have to handle hi(), lo(), etc
1790 parse_cons_expression_v850 (exp)
1793 /* See if there's a reloc prefix like hi() we have to handle. */
1794 hold_cons_reloc = v850_reloc_prefix (NULL);
1796 /* Do normal expression parsing. */
1800 /* Create a fixup for a cons expression. If parse_cons_expression_v850
1801 found a reloc prefix, then we use that reloc, else we choose an
1802 appropriate one based on the size of the expression. */
1804 cons_fix_new_v850 (frag, where, size, exp)
1810 if (hold_cons_reloc == BFD_RELOC_UNUSED)
1813 hold_cons_reloc = BFD_RELOC_32;
1815 hold_cons_reloc = BFD_RELOC_16;
1817 hold_cons_reloc = BFD_RELOC_8;
1821 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
1823 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);