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 ();
325 as_warn (_("Common alignment negative; 0 assumed"));
337 applicable
= bfd_applicable_section_flags (stdoutput
);
339 applicable
&= SEC_ALLOC
;
344 if (sbss_section
== NULL
)
346 sbss_section
= subseg_new (".sbss", 0);
348 bfd_set_section_flags (stdoutput
, sbss_section
, applicable
);
350 seg_info (sbss_section
)->bss
= 1;
355 if (zbss_section
== NULL
)
357 zbss_section
= subseg_new (".zbss", 0);
359 bfd_set_section_flags (stdoutput
, sbss_section
, applicable
);
361 seg_info (zbss_section
)->bss
= 1;
366 if (tbss_section
== NULL
)
368 tbss_section
= subseg_new (".tbss", 0);
370 bfd_set_section_flags (stdoutput
, tbss_section
, applicable
);
372 seg_info (tbss_section
)->bss
= 1;
379 old_subsec
= now_subseg
;
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)
759 middle
= (low
+ high
) / 2;
760 cmp
= strcasecmp (name
, regs
[middle
].name
);
766 return regs
[middle
].value
;
773 /* Summary of register_name().
775 * in: Input_line_pointer points to 1st char of operand.
777 * out: A expressionS.
778 * The operand may have been a register: in this case, X_op == O_register,
779 * X_add_number is set to the register number, and truth is returned.
780 * Input_line_pointer->(next non-blank) char after operand, or is in
781 * its original state.
784 register_name (expressionP
)
785 expressionS
* expressionP
;
792 /* Find the spelling of the operand */
793 start
= name
= input_line_pointer
;
795 c
= get_symbol_end ();
797 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
,
800 * input_line_pointer
= c
; /* put back the delimiting char */
802 /* look to see if it's in the register table */
805 expressionP
->X_op
= O_register
;
806 expressionP
->X_add_number
= reg_number
;
808 /* make the rest nice */
809 expressionP
->X_add_symbol
= NULL
;
810 expressionP
->X_op_symbol
= NULL
;
816 /* reset the line as if we had not done anything */
817 input_line_pointer
= start
;
823 /* Summary of system_register_name().
825 * in: Input_line_pointer points to 1st char of operand.
826 * expressionP points to an expression structure to be filled in.
827 * accept_numbers is true iff numerical register names may be used.
828 * start-sanitize-v850e
829 * accept_list_names is true iff the special names PS and SR may be
833 * out: A expressionS structure in expressionP.
834 * The operand may have been a register: in this case, X_op == O_register,
835 * X_add_number is set to the register number, and truth is returned.
836 * Input_line_pointer->(next non-blank) char after operand, or is in
837 * its original state.
840 system_register_name (expressionP
, accept_numbers
841 /* start-sanitize-v850e */
843 /* end-sanitize-v850e */
845 expressionS
* expressionP
;
846 boolean accept_numbers
;
847 /* start-sanitize-v850e */
848 boolean accept_list_names
;
849 /* end-sanitize-v850e */
856 /* Find the spelling of the operand */
857 start
= name
= input_line_pointer
;
859 c
= get_symbol_end ();
860 reg_number
= reg_name_search (system_registers
, SYSREG_NAME_CNT
, name
,
863 * input_line_pointer
= c
; /* put back the delimiting char */
868 input_line_pointer
= start
; /* reset input_line pointer */
870 if (isdigit (* input_line_pointer
))
872 reg_number
= strtol (input_line_pointer
, & input_line_pointer
, 10);
874 /* Make sure that the register number is allowable. */
877 /* start-sanitize-v850e */
880 /* end-sanitize-v850e */
886 /* start-sanitize-v850e */
887 else if (accept_list_names
)
889 c
= get_symbol_end ();
890 reg_number
= reg_name_search (system_list_registers
,
891 SYSREGLIST_NAME_CNT
, name
, FALSE
);
893 * input_line_pointer
= c
; /* put back the delimiting char */
895 /* end-sanitize-v850e */
898 /* look to see if it's in the register table */
901 expressionP
->X_op
= O_register
;
902 expressionP
->X_add_number
= reg_number
;
904 /* make the rest nice */
905 expressionP
->X_add_symbol
= NULL
;
906 expressionP
->X_op_symbol
= NULL
;
912 /* reset the line as if we had not done anything */
913 input_line_pointer
= start
;
919 /* Summary of cc_name().
921 * in: Input_line_pointer points to 1st char of operand.
923 * out: A expressionS.
924 * The operand may have been a register: in this case, X_op == O_register,
925 * X_add_number is set to the register number, and truth is returned.
926 * Input_line_pointer->(next non-blank) char after operand, or is in
927 * its original state.
930 cc_name (expressionP
)
931 expressionS
* expressionP
;
938 /* Find the spelling of the operand */
939 start
= name
= input_line_pointer
;
941 c
= get_symbol_end ();
942 reg_number
= reg_name_search (cc_names
, CC_NAME_CNT
, name
, FALSE
);
944 * input_line_pointer
= c
; /* put back the delimiting char */
946 /* look to see if it's in the register table */
949 expressionP
->X_op
= O_constant
;
950 expressionP
->X_add_number
= reg_number
;
952 /* make the rest nice */
953 expressionP
->X_add_symbol
= NULL
;
954 expressionP
->X_op_symbol
= NULL
;
960 /* reset the line as if we had not done anything */
961 input_line_pointer
= start
;
968 skip_white_space (void)
970 while ( * input_line_pointer
== ' '
971 || * input_line_pointer
== '\t')
972 ++ input_line_pointer
;
975 /* start-sanitize-v850e */
976 /* Summary of parse_register_list ().
978 * in: Input_line_pointer points to 1st char of a list of registers.
979 * insn is the partially constructed instruction.
980 * operand is the operand being inserted.
982 * out: NULL if the parse completed successfully, otherwise a
983 * pointer to an error message is returned. If the parse
984 * completes the correct bit fields in the instruction
987 * Parses register lists with the syntax:
995 * and also parses constant epxressions whoes bits indicate the
996 * registers in the lists. The LSB in the expression refers to
997 * the lowest numbered permissable register in the register list,
998 * and so on upwards. System registers are considered to be very
1005 unsigned long * insn
,
1006 const struct v850_operand
* operand
1009 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 };
1010 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 };
1011 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 };
1016 /* Select a register array to parse. */
1017 switch (operand
->shift
)
1019 case 0xffe00001: regs
= type1_regs
; break;
1020 case 0xfff8000f: regs
= type2_regs
; break;
1021 case 0xfff8001f: regs
= type3_regs
; break;
1023 as_bad (_("unknown operand shift: %x\n"), operand
->shift
);
1024 return _("internal failure in parse_register_list");
1029 /* If the expression starts with a curly brace it is a register list.
1030 Otherwise it is a constant expression, whoes bits indicate which
1031 registers are to be included in the list. */
1033 if (* input_line_pointer
!= '{')
1041 if (exp
.X_op
!= O_constant
)
1042 return _("constant expression or register list expected");
1044 if (regs
== type1_regs
)
1046 if (exp
.X_add_number
& 0xFFFFF000)
1047 return _("high bits set in register list expression");
1049 for (reg
= 20; reg
< 32; reg
++)
1050 if (exp
.X_add_number
& (1 << (reg
- 20)))
1052 for (i
= 0; i
< 32; i
++)
1057 else if (regs
== type2_regs
)
1059 if (exp
.X_add_number
& 0xFFFE0000)
1060 return _("high bits set in register list expression");
1062 for (reg
= 1; reg
< 16; reg
++)
1063 if (exp
.X_add_number
& (1 << (reg
- 1)))
1065 for (i
= 0; i
< 32; i
++)
1070 if (exp
.X_add_number
& (1 << 15))
1073 if (exp
.X_add_number
& (1 << 16))
1074 * insn
|= (1 << 19);
1076 else /* regs == type3_regs */
1078 if (exp
.X_add_number
& 0xFFFE0000)
1079 return _("high bits set in register list expression");
1081 for (reg
= 16; reg
< 32; reg
++)
1082 if (exp
.X_add_number
& (1 << (reg
- 16)))
1084 for (i
= 0; i
< 32; i
++)
1089 if (exp
.X_add_number
& (1 << 16))
1090 * insn
|= (1 << 19);
1096 input_line_pointer
++;
1098 /* Parse the register list until a terminator (closing curly brace or
1099 new-line) is found. */
1102 if (register_name (& exp
))
1106 /* Locate the given register in the list, and if it is there,
1107 insert the corresponding bit into the instruction. */
1108 for (i
= 0; i
< 32; i
++)
1110 if (regs
[ i
] == exp
.X_add_number
)
1119 return _("illegal register included in list");
1122 else if (system_register_name (& exp
, true, true))
1124 if (regs
== type1_regs
)
1126 return _("system registers cannot be included in list");
1128 else if (exp
.X_add_number
== 5)
1130 if (regs
== type2_regs
)
1131 return _("PSW cannot be included in list");
1135 else if (exp
.X_add_number
< 4)
1138 return _("High value system registers cannot be included in list");
1140 else if (* input_line_pointer
== '}')
1142 input_line_pointer
++;
1145 else if (* input_line_pointer
== ',')
1147 input_line_pointer
++;
1150 else if (* input_line_pointer
== '-')
1152 /* We have encountered a range of registers: rX - rY */
1156 /* Skip the dash. */
1157 ++ input_line_pointer
;
1159 /* Get the second register in the range. */
1160 if (! register_name (& exp2
))
1162 return _("second register should follow dash in register list");
1163 exp2
.X_add_number
= exp
.X_add_number
;
1166 /* Add the rest of the registers in the range. */
1167 for (j
= exp
.X_add_number
+ 1; j
<= exp2
.X_add_number
; j
++)
1171 /* Locate the given register in the list, and if it is there,
1172 insert the corresponding bit into the instruction. */
1173 for (i
= 0; i
< 32; i
++)
1183 return _("illegal register included in list");
1191 skip_white_space ();
1196 /* end-sanitize-v850e */
1198 CONST
char * md_shortopts
= "m:";
1200 struct option md_longopts
[] =
1202 {NULL
, no_argument
, NULL
, 0}
1204 size_t md_longopts_size
= sizeof md_longopts
;
1208 md_show_usage (stream
)
1211 fprintf (stream
, _("V850 options:\n"));
1212 fprintf (stream
, _("\t-mwarn-signed-overflow Warn if signed immediate values overflow\n"));
1213 fprintf (stream
, _("\t-mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n"));
1214 fprintf (stream
, _("\t-mv850 The code is targeted at the v850\n"));
1215 /* start-sanitize-v850e */
1216 fprintf (stream
, _("\t-mv850e The code is targeted at the v850e\n"));
1217 fprintf (stream
, _("\t-mv850ea The code is targeted at the v850ea\n"));
1218 fprintf (stream
, _("\t-mv850any The code is generic, despite any processor specific instructions\n"));
1219 /* end-sanitize-v850e */
1223 md_parse_option (c
, arg
)
1229 /* xgettext:c-format */
1230 fprintf (stderr
, _("unknown command line option: -%c%s\n"), c
, arg
);
1234 if (strcmp (arg
, "warn-signed-overflow") == 0)
1236 warn_signed_overflows
= TRUE
;
1238 else if (strcmp (arg
, "warn-unsigned-overflow") == 0)
1240 warn_unsigned_overflows
= TRUE
;
1242 else if (strcmp (arg
, "v850") == 0)
1245 processor_mask
= PROCESSOR_V850
;
1247 /* start-sanitize-v850e */
1248 else if (strcmp (arg
, "v850e") == 0)
1250 machine
= bfd_mach_v850e
;
1251 processor_mask
= PROCESSOR_V850E
;
1253 else if (strcmp (arg
, "v850ea") == 0)
1255 machine
= bfd_mach_v850ea
;
1256 processor_mask
= PROCESSOR_V850EA
;
1258 else if (strcmp (arg
, "v850any") == 0)
1260 machine
= 0; /* Tell the world that this is for any v850 chip. */
1261 processor_mask
= PROCESSOR_V850EA
; /* But support instructions for the extended versions. */
1263 /* end-sanitize-v850e */
1266 /* xgettext:c-format */
1267 fprintf (stderr
, _("unknown command line option: -%c%s\n"), c
, arg
);
1275 md_undefined_symbol (name
)
1282 md_atof (type
, litp
, sizep
)
1288 LITTLENUM_TYPE words
[4];
1304 return _("bad call to md_atof");
1307 t
= atof_ieee (input_line_pointer
, type
, words
);
1309 input_line_pointer
= t
;
1313 for (i
= prec
- 1; i
>= 0; i
--)
1315 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
1325 md_convert_frag (abfd
, sec
, fragP
)
1330 subseg_change (sec
, 0);
1332 /* In range conditional or unconditional branch. */
1333 if (fragP
->fr_subtype
== 0 || fragP
->fr_subtype
== 2)
1335 fix_new (fragP
, fragP
->fr_fix
, 2, fragP
->fr_symbol
,
1336 fragP
->fr_offset
, 1, BFD_RELOC_UNUSED
+ (int)fragP
->fr_opcode
);
1340 /* Out of range conditional branch. Emit a branch around a jump. */
1341 else if (fragP
->fr_subtype
== 1)
1343 unsigned char *buffer
=
1344 (unsigned char *) (fragP
->fr_fix
+ fragP
->fr_literal
);
1346 /* Reverse the condition of the first branch. */
1348 /* Mask off all the displacement bits. */
1351 /* Now set the displacement bits so that we branch
1352 around the unconditional branch. */
1355 /* Now create the unconditional branch + fixup to the final
1357 md_number_to_chars (buffer
+ 2, 0x00000780, 4);
1358 fix_new (fragP
, fragP
->fr_fix
+ 2, 4, fragP
->fr_symbol
,
1359 fragP
->fr_offset
, 1, BFD_RELOC_UNUSED
+ (int) fragP
->fr_opcode
1364 /* Out of range unconditional branch. Emit a jump. */
1365 else if (fragP
->fr_subtype
== 3)
1367 md_number_to_chars (fragP
->fr_fix
+ fragP
->fr_literal
, 0x00000780, 4);
1368 fix_new (fragP
, fragP
->fr_fix
, 4, fragP
->fr_symbol
,
1369 fragP
->fr_offset
, 1, BFD_RELOC_UNUSED
+ (int) fragP
->fr_opcode
1379 md_section_align (seg
, addr
)
1383 int align
= bfd_get_section_alignment (stdoutput
, seg
);
1384 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
1390 char * prev_name
= "";
1391 register const struct v850_opcode
* op
;
1392 flagword applicable
;
1394 /* start-sanitize-v850e */
1395 if (strncmp (TARGET_CPU
, "v850ea", 6) == 0)
1398 machine
= bfd_mach_v850ea
;
1400 if (processor_mask
== -1)
1401 processor_mask
= PROCESSOR_V850EA
;
1403 else if (strncmp (TARGET_CPU
, "v850e", 5) == 0)
1406 machine
= bfd_mach_v850e
;
1408 if (processor_mask
== -1)
1409 processor_mask
= PROCESSOR_V850E
;
1412 /* end-sanitize-v850e */
1413 if (strncmp (TARGET_CPU
, "v850", 4) == 0)
1418 if (processor_mask
== -1)
1419 processor_mask
= PROCESSOR_V850
;
1422 /* xgettext:c-format */
1423 as_bad (_("Unable to determine default target processor from string: %s"),
1426 v850_hash
= hash_new();
1428 /* Insert unique names into hash table. The V850 instruction set
1429 has many identical opcode names that have different opcodes based
1430 on the operands. This hash table then provides a quick index to
1431 the first opcode with a particular name in the opcode table. */
1436 if (strcmp (prev_name
, op
->name
))
1438 prev_name
= (char *) op
->name
;
1439 hash_insert (v850_hash
, op
->name
, (char *) op
);
1444 bfd_set_arch_mach (stdoutput
, TARGET_ARCH
, machine
);
1446 /* start-sanitize-v850e */
1447 call_table_data_section
= subseg_new (".call_table_data", 0);
1448 bfd_set_section_flags (stdoutput
, call_table_data_section
,
1449 applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
1450 | SEC_DATA
| SEC_HAS_CONTENTS
));
1452 call_table_text_section
= subseg_new (".call_table_text", 0);
1453 bfd_set_section_flags (stdoutput
, call_table_text_section
,
1454 applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_CODE
));
1456 /* Restore text section as the current default. */
1457 subseg_set (text_section
, 0);
1458 /* end-sanitize-v850e */
1463 /* start-sanitize-v850e */
1464 static bfd_reloc_code_real_type
1465 handle_ctoff (const struct v850_operand
* operand
)
1467 if (operand
== NULL
)
1468 return BFD_RELOC_V850_CALLT_16_16_OFFSET
;
1470 if ( operand
->bits
!= 6
1471 || operand
->shift
!= 0)
1473 as_bad (_("ctoff() relocation used on an instruction which does not support it"));
1474 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1477 return BFD_RELOC_V850_CALLT_6_7_OFFSET
;
1479 /* end-sanitize-v850e */
1481 static bfd_reloc_code_real_type
1482 handle_sdaoff (const struct v850_operand
* operand
)
1484 if (operand
== NULL
) return BFD_RELOC_V850_SDA_16_16_OFFSET
;
1485 if (operand
->bits
== 15 && operand
->shift
== 17) return BFD_RELOC_V850_SDA_15_16_OFFSET
;
1486 /* start-sanitize-v850e */
1487 if (operand
->bits
== -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
;
1488 /* end-sanitize-v850e */
1490 if ( operand
->bits
!= 16
1491 || operand
->shift
!= 16)
1493 as_bad (_("sdaoff() relocation used on an instruction which does not support it"));
1494 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1497 return BFD_RELOC_V850_SDA_16_16_OFFSET
;
1500 static bfd_reloc_code_real_type
1501 handle_zdaoff (const struct v850_operand
* operand
)
1503 if (operand
== NULL
) return BFD_RELOC_V850_ZDA_16_16_OFFSET
;
1504 if (operand
->bits
== 15 && operand
->shift
== 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET
;
1505 /* start-sanitize-v850e */
1506 if (operand
->bits
== -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
;
1507 /* end-sanitize-v850e */
1509 if ( operand
->bits
!= 16
1510 || operand
->shift
!= 16)
1512 as_bad (_("zdaoff() relocation used on an instruction which does not support it"));
1513 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1516 return BFD_RELOC_V850_ZDA_16_16_OFFSET
;
1519 static bfd_reloc_code_real_type
1520 handle_tdaoff (const struct v850_operand
* operand
)
1522 if (operand
== NULL
) return BFD_RELOC_V850_TDA_7_7_OFFSET
; /* data item, not an instruction. */
1523 if (operand
->bits
== 6 && operand
->shift
== 1) return BFD_RELOC_V850_TDA_6_8_OFFSET
; /* sld.w/sst.w, operand: D8_6 */
1524 /* start-sanitize-v850e */
1525 if (operand
->bits
== 4 && operand
->insert
!= NULL
) return BFD_RELOC_V850_TDA_4_5_OFFSET
; /* sld.hu, operand: D5-4 */
1526 if (operand
->bits
== 4 && operand
->insert
== NULL
) return BFD_RELOC_V850_TDA_4_4_OFFSET
; /* sld.bu, operand: D4 */
1527 /* end-sanitize-v850e */
1528 if (operand
->bits
== 16 && operand
->shift
== 16) return BFD_RELOC_V850_TDA_16_16_OFFSET
; /* set1 & chums, operands: D16 */
1530 if (operand
->bits
!= 7)
1532 as_bad (_("tdaoff() relocation used on an instruction which does not support it"));
1533 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1536 return operand
->insert
!= NULL
1537 ? BFD_RELOC_V850_TDA_7_8_OFFSET
/* sld.h/sst.h, operand: D8_7 */
1538 : BFD_RELOC_V850_TDA_7_7_OFFSET
; /* sld.b/sst.b, opreand: D7 */
1541 /* Warning: The code in this function relies upon the definitions
1542 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1543 matching the hard coded values contained herein. */
1545 static bfd_reloc_code_real_type
1546 v850_reloc_prefix (const struct v850_operand
* operand
)
1548 boolean paren_skipped
= false;
1551 /* Skip leading opening parenthesis. */
1552 if (* input_line_pointer
== '(')
1554 ++ input_line_pointer
;
1555 paren_skipped
= true;
1558 #define CHECK_(name, reloc) \
1559 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1561 input_line_pointer += strlen (name); \
1565 CHECK_ ("hi0", BFD_RELOC_HI16
);
1566 CHECK_ ("hi", BFD_RELOC_HI16_S
);
1567 CHECK_ ("lo", BFD_RELOC_LO16
);
1568 CHECK_ ("sdaoff", handle_sdaoff (operand
));
1569 CHECK_ ("zdaoff", handle_zdaoff (operand
));
1570 CHECK_ ("tdaoff", handle_tdaoff (operand
));
1572 /* start-sanitize-v850e */
1573 CHECK_ ("hilo", BFD_RELOC_32
);
1574 CHECK_ ("ctoff", handle_ctoff (operand
));
1575 /* end-sanitize-v850e */
1577 /* Restore skipped parenthesis. */
1579 -- input_line_pointer
;
1581 return BFD_RELOC_UNUSED
;
1584 /* Insert an operand value into an instruction. */
1586 static unsigned long
1587 v850_insert_operand (insn
, operand
, val
, file
, line
, str
)
1589 const struct v850_operand
* operand
;
1595 if (operand
->insert
)
1597 const char * message
= NULL
;
1599 insn
= operand
->insert (insn
, val
, & message
);
1600 if (message
!= NULL
)
1602 if ((operand
->flags
& V850_OPERAND_SIGNED
)
1603 && ! warn_signed_overflows
1604 && strstr (message
, "out of range") != NULL
)
1606 /* skip warning... */
1608 else if ((operand
->flags
& V850_OPERAND_SIGNED
) == 0
1609 && ! warn_unsigned_overflows
1610 && strstr (message
, "out of range") != NULL
)
1612 /* skip warning... */
1616 if (file
== (char *) NULL
)
1617 as_warn ("%s: %s", str
, message
);
1619 as_warn_where (file
, line
, "%s: %s", str
, message
);
1623 if (file
== (char *) NULL
)
1626 as_warn_where (file
, line
, message
);
1632 if (operand
->bits
!= 32)
1637 if ((operand
->flags
& V850_OPERAND_SIGNED
) != 0)
1639 if (! warn_signed_overflows
)
1640 max
= (1 << operand
->bits
) - 1;
1642 max
= (1 << (operand
->bits
- 1)) - 1;
1644 min
= - (1 << (operand
->bits
- 1));
1648 max
= (1 << operand
->bits
) - 1;
1650 if (! warn_unsigned_overflows
)
1651 min
= - (1 << (operand
->bits
- 1));
1656 if (val
< (offsetT
) min
|| val
> (offsetT
) max
)
1658 /* xgettext:c-format */
1659 const char * err
= _("operand out of range (%s not between %ld and %ld)");
1662 /* Restore min and mix to expected values for decimal ranges. */
1663 if ((operand
->flags
& V850_OPERAND_SIGNED
)
1664 && ! warn_signed_overflows
)
1665 max
= (1 << (operand
->bits
- 1)) - 1;
1667 if (! (operand
->flags
& V850_OPERAND_SIGNED
)
1668 && ! warn_unsigned_overflows
)
1673 sprintf (buf
, "%s: ", str
);
1675 sprint_value (buf
+ strlen (buf
), val
);
1678 sprint_value (buf
, val
);
1680 if (file
== (char *) NULL
)
1681 as_warn (err
, buf
, min
, max
);
1683 as_warn_where (file
, line
, err
, buf
, min
, max
);
1687 insn
|= (((long) val
& ((1 << operand
->bits
) - 1)) << operand
->shift
);
1694 static char copy_of_instruction
[128];
1701 char * start_of_operands
;
1702 struct v850_opcode
* opcode
;
1703 struct v850_opcode
* next_opcode
;
1704 const unsigned char * opindex_ptr
;
1708 unsigned long insn_size
;
1712 boolean extra_data_after_insn
= false;
1713 unsigned extra_data_len
;
1714 unsigned long extra_data
;
1715 char * saved_input_line_pointer
;
1718 strncpy (copy_of_instruction
, str
, sizeof (copy_of_instruction
) - 1);
1720 /* Get the opcode. */
1721 for (s
= str
; *s
!= '\0' && ! isspace (*s
); s
++)
1727 /* find the first opcode with the proper name */
1728 opcode
= (struct v850_opcode
*) hash_find (v850_hash
, str
);
1731 /* xgettext:c-format */
1732 as_bad (_("Unrecognized opcode: `%s'"), str
);
1733 ignore_rest_of_line ();
1738 while (isspace (* str
))
1741 start_of_operands
= str
;
1743 saved_input_line_pointer
= input_line_pointer
;
1747 const char * errmsg
= NULL
;
1751 if ((opcode
->processors
& processor_mask
) == 0)
1753 errmsg
= _("Target processor does not support this instruction.");
1760 insn
= opcode
->opcode
;
1761 extra_data_after_insn
= false;
1763 input_line_pointer
= str
= start_of_operands
;
1765 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
1767 const struct v850_operand
* operand
;
1770 bfd_reloc_code_real_type reloc
;
1772 if (next_opindex
== 0)
1774 operand
= & v850_operands
[ * opindex_ptr
];
1778 operand
= & v850_operands
[ next_opindex
];
1784 while (*str
== ' ' || *str
== ',' || *str
== '[' || *str
== ']')
1787 if (operand
->flags
& V850_OPERAND_RELAX
)
1790 /* Gather the operand. */
1791 hold
= input_line_pointer
;
1792 input_line_pointer
= str
;
1794 /* lo(), hi(), hi0(), etc... */
1795 if ((reloc
= v850_reloc_prefix (operand
)) != BFD_RELOC_UNUSED
)
1797 /* This is a fake reloc, used to indicate an error condition. */
1798 if (reloc
== BFD_RELOC_64
)
1806 if (ex
.X_op
== O_constant
)
1810 case BFD_RELOC_V850_ZDA_16_16_OFFSET
:
1811 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]"
1815 case BFD_RELOC_LO16
:
1817 /* Truncate, then sign extend the value. */
1818 ex
.X_add_number
= SEXT16 (ex
.X_add_number
);
1822 case BFD_RELOC_HI16
:
1824 /* Truncate, then sign extend the value. */
1825 ex
.X_add_number
= SEXT16 (ex
.X_add_number
>> 16);
1829 case BFD_RELOC_HI16_S
:
1831 /* Truncate, then sign extend the value. */
1832 int temp
= (ex
.X_add_number
>> 16) & 0xffff;
1834 temp
+= (ex
.X_add_number
>> 15) & 1;
1836 ex
.X_add_number
= SEXT16 (temp
);
1840 /* start-sanitize-v850e */
1842 if ((operand
->flags
& V850E_IMMEDIATE32
) == 0)
1844 errmsg
= _("immediate operand is too large");
1848 extra_data_after_insn
= true;
1850 extra_data
= ex
.X_add_number
;
1851 ex
.X_add_number
= 0;
1853 /* end-sanitize-v850e */
1856 fprintf (stderr
, "reloc: %d\n", reloc
);
1857 as_bad (_("AAARG -> unhandled constant reloc"));
1861 if (fc
> MAX_INSN_FIXUPS
)
1862 as_fatal (_("too many fixups"));
1864 fixups
[ fc
].exp
= ex
;
1865 fixups
[ fc
].opindex
= * opindex_ptr
;
1866 fixups
[ fc
].reloc
= reloc
;
1871 /* start-sanitize-v850e */
1872 if (reloc
== BFD_RELOC_32
)
1874 if ((operand
->flags
& V850E_IMMEDIATE32
) == 0)
1876 errmsg
= _("immediate operand is too large");
1880 extra_data_after_insn
= true;
1882 extra_data
= ex
.X_add_number
;
1884 /* end-sanitize-v850e */
1886 if (fc
> MAX_INSN_FIXUPS
)
1887 as_fatal (_("too many fixups"));
1889 fixups
[ fc
].exp
= ex
;
1890 fixups
[ fc
].opindex
= * opindex_ptr
;
1891 fixups
[ fc
].reloc
= reloc
;
1899 if ((operand
->flags
& V850_OPERAND_REG
) != 0)
1901 if (!register_name (& ex
))
1903 errmsg
= _("invalid register name");
1905 else if ((operand
->flags
& V850_NOT_R0
)
1906 && ex
.X_add_number
== 0)
1908 errmsg
= _("register r0 cannot be used here");
1910 /* Force an error message to be generated by
1911 skipping over any following potential matches
1916 else if ((operand
->flags
& V850_OPERAND_SRG
) != 0)
1918 if (!system_register_name (& ex
, true
1919 /* start-sanitize-v850e */
1921 /* end-sanitize-v850e */
1924 errmsg
= _("invalid system register name");
1927 else if ((operand
->flags
& V850_OPERAND_EP
) != 0)
1929 char * start
= input_line_pointer
;
1930 char c
= get_symbol_end ();
1932 if (strcmp (start
, "ep") != 0 && strcmp (start
, "r30") != 0)
1934 /* Put things back the way we found them. */
1935 *input_line_pointer
= c
;
1936 input_line_pointer
= start
;
1937 errmsg
= _("expected EP register");
1941 *input_line_pointer
= c
;
1942 str
= input_line_pointer
;
1943 input_line_pointer
= hold
;
1945 while ( *str
== ' ' || *str
== ',' || *str
== '['
1950 else if ((operand
->flags
& V850_OPERAND_CC
) != 0)
1952 if (!cc_name (& ex
))
1954 errmsg
= _("invalid condition code name");
1957 /* start-sanitize-v850e */
1958 else if (operand
->flags
& V850E_PUSH_POP
)
1960 errmsg
= parse_register_list (& insn
, operand
);
1962 /* The parse_register_list() function has already done
1963 everything, so fake a dummy expression. */
1964 ex
.X_op
= O_constant
;
1965 ex
.X_add_number
= 0;
1967 else if (operand
->flags
& V850E_IMMEDIATE16
)
1971 if (ex
.X_op
!= O_constant
)
1972 errmsg
= _("constant expression expected");
1973 else if (ex
.X_add_number
& 0xffff0000)
1975 if (ex
.X_add_number
& 0xffff)
1976 errmsg
= _("constant too big to fit into instruction");
1977 else if ((insn
& 0x001fffc0) == 0x00130780)
1978 ex
.X_add_number
>>= 16;
1980 errmsg
= _("constant too big to fit into instruction");
1983 extra_data_after_insn
= true;
1985 extra_data
= ex
.X_add_number
;
1986 ex
.X_add_number
= 0;
1988 else if (operand
->flags
& V850E_IMMEDIATE32
)
1992 if (ex
.X_op
!= O_constant
)
1993 errmsg
= _("constant expression expected");
1995 extra_data_after_insn
= true;
1997 extra_data
= ex
.X_add_number
;
1998 ex
.X_add_number
= 0;
2000 /* end-sanitize-v850e */
2001 else if (register_name (& ex
)
2002 && (operand
->flags
& V850_OPERAND_REG
) == 0)
2007 /* It is possible that an alias has been defined that
2008 matches a register name. For example the code may
2009 include a ".set ZERO, 0" directive, which matches
2010 the register name "zero". Attempt to reparse the
2011 field as an expression, and only complain if we
2012 cannot generate a constant. */
2014 input_line_pointer
= str
;
2016 c
= get_symbol_end();
2018 if (symbol_find (str
) != NULL
)
2021 * input_line_pointer
= c
;
2022 input_line_pointer
= str
;
2026 if (ex
.X_op
!= O_constant
)
2028 /* If this register is actually occuring too early on
2029 the parsing of the instruction, (because another
2030 field is missing) then report this. */
2031 if (opindex_ptr
[1] != 0
2032 && (v850_operands
[opindex_ptr
[1]].flags
& V850_OPERAND_REG
))
2033 errmsg
= _("syntax error: value is missing before the register name");
2035 errmsg
= _("syntax error: register not expected");
2037 /* If we created a symbol in the process of this test then
2038 delete it now, so that it will not be output with the real
2041 && ex
.X_op
== O_symbol
)
2042 symbol_remove (ex
.X_add_symbol
,
2043 & symbol_rootP
, & symbol_lastP
);
2046 else if (system_register_name (& ex
, false
2047 /* start-sanitize-v850e */
2049 /* end-sanitize-v850e */
2051 && (operand
->flags
& V850_OPERAND_SRG
) == 0)
2053 errmsg
= _("syntax error: system register not expected");
2055 else if (cc_name (&ex
)
2056 && (operand
->flags
& V850_OPERAND_CC
) == 0)
2058 errmsg
= _("syntax error: condition code not expected");
2063 /* start-sanitize-v850e */
2065 If we are assembling a MOV instruction (or a CALLT.... :-)
2066 and the immediate value does not fit into the bits
2067 available then create a fake error so that the next MOV
2068 instruction will be selected. This one has a 32 bit
2071 if (((insn
& 0x07e0) == 0x0200)
2072 && ex
.X_op
== O_constant
2073 && (ex
.X_add_number
< (- (1 << (operand
->bits
- 1)))
2074 || ex
.X_add_number
> ((1 << operand
->bits
) - 1)))
2075 errmsg
= _("immediate operand is too large");
2076 /* end-sanitize-v850e */
2082 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n",
2083 insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
2088 errmsg
= _("illegal operand");
2091 errmsg
= _("missing operand");
2094 if ((operand
->flags
& (V850_OPERAND_REG
| V850_OPERAND_SRG
)) == 0)
2096 errmsg
= _("invalid operand");
2099 insn
= v850_insert_operand (insn
, operand
, ex
.X_add_number
,
2101 copy_of_instruction
);
2105 insn
= v850_insert_operand (insn
, operand
, ex
.X_add_number
,
2107 copy_of_instruction
);
2111 /* We need to generate a fixup for this expression. */
2112 if (fc
>= MAX_INSN_FIXUPS
)
2113 as_fatal (_("too many fixups"));
2115 fixups
[ fc
].exp
= ex
;
2116 fixups
[ fc
].opindex
= * opindex_ptr
;
2117 fixups
[ fc
].reloc
= BFD_RELOC_UNUSED
;
2123 str
= input_line_pointer
;
2124 input_line_pointer
= hold
;
2126 while (*str
== ' ' || *str
== ',' || *str
== '[' || *str
== ']'
2135 next_opcode
= opcode
+ 1;
2136 if (next_opcode
->name
!= NULL
2137 && strcmp (next_opcode
->name
, opcode
->name
) == 0)
2139 opcode
= next_opcode
;
2141 /* Skip versions that are not supported by the target
2143 if ((opcode
->processors
& processor_mask
) == 0)
2149 as_bad ("%s: %s", copy_of_instruction
, errmsg
);
2151 if (* input_line_pointer
== ']')
2152 ++ input_line_pointer
;
2154 ignore_rest_of_line ();
2155 input_line_pointer
= saved_input_line_pointer
;
2161 while (isspace (*str
))
2165 /* xgettext:c-format */
2166 as_bad (_("junk at end of line: `%s'"), str
);
2168 input_line_pointer
= str
;
2170 /* Write out the instruction. */
2172 if (relaxable
&& fc
> 0)
2177 if (!strcmp (opcode
->name
, "br"))
2179 f
= frag_var (rs_machine_dependent
, 4, 2, 2,
2180 fixups
[0].exp
.X_add_symbol
,
2181 fixups
[0].exp
.X_add_number
,
2182 (char *)fixups
[0].opindex
);
2183 md_number_to_chars (f
, insn
, insn_size
);
2184 md_number_to_chars (f
+ 2, 0, 2);
2188 f
= frag_var (rs_machine_dependent
, 6, 4, 0,
2189 fixups
[0].exp
.X_add_symbol
,
2190 fixups
[0].exp
.X_add_number
,
2191 (char *)fixups
[0].opindex
);
2192 md_number_to_chars (f
, insn
, insn_size
);
2193 md_number_to_chars (f
+ 2, 0, 4);
2198 /* Four byte insns have an opcode with the two high bits on. */
2199 if ((insn
& 0x0600) == 0x0600)
2204 /* start-sanitize-v850e */
2205 /* Special case: 32 bit MOV */
2206 if ((insn
& 0xffe0) == 0x0620)
2208 /* end-sanitize-v850e */
2210 f
= frag_more (insn_size
);
2212 md_number_to_chars (f
, insn
, insn_size
);
2214 if (extra_data_after_insn
)
2216 f
= frag_more (extra_data_len
);
2218 md_number_to_chars (f
, extra_data
, extra_data_len
);
2220 extra_data_after_insn
= false;
2224 /* Create any fixups. At this point we do not use a
2225 bfd_reloc_code_real_type, but instead just use the
2226 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2227 handle fixups for any operand type, although that is admittedly
2228 not a very exciting feature. We pick a BFD reloc type in
2230 for (i
= 0; i
< fc
; i
++)
2232 const struct v850_operand
* operand
;
2233 bfd_reloc_code_real_type reloc
;
2235 operand
= & v850_operands
[ fixups
[i
].opindex
];
2237 reloc
= fixups
[i
].reloc
;
2239 if (reloc
!= BFD_RELOC_UNUSED
)
2241 reloc_howto_type
* reloc_howto
= bfd_reloc_type_lookup (stdoutput
,
2250 size
= bfd_get_reloc_size (reloc_howto
);
2252 /* XXX This will abort on an R_V850_8 reloc -
2253 is this reloc actually used ? */
2254 if (size
!= 2 && size
!= 4)
2257 address
= (f
- frag_now
->fr_literal
) + insn_size
- size
;
2259 if (reloc
== BFD_RELOC_32
)
2264 fixP
= fix_new_exp (frag_now
, address
, size
,
2266 reloc_howto
->pc_relative
,
2271 case BFD_RELOC_LO16
:
2272 case BFD_RELOC_HI16
:
2273 case BFD_RELOC_HI16_S
:
2274 fixP
->fx_no_overflow
= 1;
2282 f
- frag_now
->fr_literal
, 4,
2284 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2285 (bfd_reloc_code_real_type
) (fixups
[i
].opindex
2286 + (int) BFD_RELOC_UNUSED
)
2291 input_line_pointer
= saved_input_line_pointer
;
2295 /* If while processing a fixup, a reloc really needs to be created */
2296 /* then it is done here. */
2299 tc_gen_reloc (seg
, fixp
)
2305 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2306 reloc
->sym_ptr_ptr
= & fixp
->fx_addsy
->bsym
;
2307 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2308 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
2310 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
2312 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2313 /* xgettext:c-format */
2314 _("reloc %d not supported by object file format"),
2315 (int)fixp
->fx_r_type
);
2322 reloc
->addend
= fixp
->fx_addnumber
;
2327 /* Assume everything will fit in two bytes, then expand as necessary. */
2329 md_estimate_size_before_relax (fragp
, seg
)
2333 if (fragp
->fr_subtype
== 0)
2335 else if (fragp
->fr_subtype
== 2)
2343 md_pcrel_from (fixp
)
2346 /* If the symbol is undefined, or in a section other than our own,
2347 then let the linker figure it out. */
2348 if (fixp
->fx_addsy
!= (symbolS
*) NULL
&& ! S_IS_DEFINED (fixp
->fx_addsy
))
2350 /* The symbol is undefined. Let the linker figure it out. */
2353 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2357 md_apply_fix3 (fixp
, valuep
, seg
)
2365 if (fixp
->fx_addsy
== (symbolS
*) NULL
)
2370 else if (fixp
->fx_pcrel
)
2374 value
= fixp
->fx_offset
;
2375 if (fixp
->fx_subsy
!= (symbolS
*) NULL
)
2377 if (S_GET_SEGMENT (fixp
->fx_subsy
) == absolute_section
)
2378 value
-= S_GET_VALUE (fixp
->fx_subsy
);
2381 /* We don't actually support subtracting a symbol. */
2382 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2383 _("expression too complex"));
2388 if ((int) fixp
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
2391 const struct v850_operand
* operand
;
2394 opindex
= (int) fixp
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
2395 operand
= & v850_operands
[ opindex
];
2397 /* Fetch the instruction, insert the fully resolved operand
2398 value, and stuff the instruction back again.
2400 Note the instruction has been stored in little endian
2402 where
= fixp
->fx_frag
->fr_literal
+ fixp
->fx_where
;
2404 insn
= bfd_getl32 ((unsigned char *) where
);
2405 insn
= v850_insert_operand (insn
, operand
, (offsetT
) value
,
2406 fixp
->fx_file
, fixp
->fx_line
, NULL
);
2407 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
2411 /* Nothing else to do here. */
2415 /* Determine a BFD reloc value based on the operand information.
2416 We are only prepared to turn a few of the operands into relocs. */
2418 if (operand
->bits
== 22)
2419 fixp
->fx_r_type
= BFD_RELOC_V850_22_PCREL
;
2420 else if (operand
->bits
== 9)
2421 fixp
->fx_r_type
= BFD_RELOC_V850_9_PCREL
;
2424 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2426 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2427 _("unresolved expression that must be resolved"));
2432 else if (fixp
->fx_done
)
2434 /* We still have to insert the value into memory! */
2435 where
= fixp
->fx_frag
->fr_literal
+ fixp
->fx_where
;
2437 if (fixp
->fx_size
== 1)
2438 * where
= value
& 0xff;
2439 else if (fixp
->fx_size
== 2)
2440 bfd_putl16 (value
& 0xffff, (unsigned char *) where
);
2441 else if (fixp
->fx_size
== 4)
2442 bfd_putl32 (value
, (unsigned char *) where
);
2445 fixp
->fx_addnumber
= value
;
2450 /* Parse a cons expression. We have to handle hi(), lo(), etc
2453 parse_cons_expression_v850 (exp
)
2456 /* See if there's a reloc prefix like hi() we have to handle. */
2457 hold_cons_reloc
= v850_reloc_prefix (NULL
);
2459 /* Do normal expression parsing. */
2463 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2464 found a reloc prefix, then we use that reloc, else we choose an
2465 appropriate one based on the size of the expression. */
2467 cons_fix_new_v850 (frag
, where
, size
, exp
)
2473 if (hold_cons_reloc
== BFD_RELOC_UNUSED
)
2476 hold_cons_reloc
= BFD_RELOC_32
;
2478 hold_cons_reloc
= BFD_RELOC_16
;
2480 hold_cons_reloc
= BFD_RELOC_8
;
2484 fix_new_exp (frag
, where
, size
, exp
, 0, hold_cons_reloc
);
2486 fix_new (frag
, where
, size
, NULL
, 0, 0, hold_cons_reloc
);