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"
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 /* local functions */
105 static unsigned long v850_insert_operand
106 PARAMS ((unsigned long insn
, const struct v850_operand
*operand
,
107 offsetT val
, char *file
, unsigned int line
));
111 #define MAX_INSN_FIXUPS (5)
116 bfd_reloc_code_real_type reloc
;
118 struct v850_fixup fixups
[MAX_INSN_FIXUPS
];
122 v850_sdata (int ignore
)
124 obj_elf_section_change_hook();
126 subseg_set (sdata_section
, (subsegT
) get_absolute_expression ());
128 demand_empty_rest_of_line ();
132 v850_tdata (int ignore
)
134 obj_elf_section_change_hook();
136 subseg_set (tdata_section
, (subsegT
) get_absolute_expression ());
138 demand_empty_rest_of_line ();
142 v850_zdata (int ignore
)
144 obj_elf_section_change_hook();
146 subseg_set (zdata_section
, (subsegT
) get_absolute_expression ());
148 demand_empty_rest_of_line ();
152 v850_sbss (int ignore
)
154 obj_elf_section_change_hook();
156 subseg_set (sbss_section
, (subsegT
) get_absolute_expression ());
158 demand_empty_rest_of_line ();
162 v850_tbss (int ignore
)
164 obj_elf_section_change_hook();
166 subseg_set (tbss_section
, (subsegT
) get_absolute_expression ());
168 demand_empty_rest_of_line ();
172 v850_zbss (int ignore
)
174 obj_elf_section_change_hook();
176 subseg_set (zbss_section
, (subsegT
) get_absolute_expression ());
178 demand_empty_rest_of_line ();
182 v850_rosdata (int ignore
)
184 obj_elf_section_change_hook();
186 subseg_set (rosdata_section
, (subsegT
) get_absolute_expression ());
188 demand_empty_rest_of_line ();
192 v850_rozdata (int ignore
)
194 obj_elf_section_change_hook();
196 subseg_set (rozdata_section
, (subsegT
) get_absolute_expression ());
198 demand_empty_rest_of_line ();
201 /* start-sanitize-v850e */
203 v850_call_table_data (int ignore
)
205 obj_elf_section_change_hook();
207 subseg_set (call_table_data_section
, (subsegT
) get_absolute_expression ());
209 demand_empty_rest_of_line ();
213 v850_call_table_text (int ignore
)
215 obj_elf_section_change_hook();
217 subseg_set (call_table_text_section
, (subsegT
) get_absolute_expression ());
219 demand_empty_rest_of_line ();
221 /* end-sanitize-v850e */
224 v850_bss (int ignore
)
226 register int temp
= get_absolute_expression ();
228 obj_elf_section_change_hook();
230 subseg_set (bss_section
, (subsegT
) temp
);
232 demand_empty_rest_of_line ();
236 v850_offset (int ignore
)
238 int temp
= get_absolute_expression ();
240 temp
-= frag_now_fix();
243 (void) frag_more (temp
);
245 demand_empty_rest_of_line ();
248 /* Copied from obj_elf_common() in gas/config/obj-elf.c */
261 name
= input_line_pointer
;
262 c
= get_symbol_end ();
263 /* just after name is now '\0' */
264 p
= input_line_pointer
;
267 if (*input_line_pointer
!= ',')
269 as_bad ("Expected comma after symbol-name");
270 ignore_rest_of_line ();
273 input_line_pointer
++; /* skip ',' */
274 if ((temp
= get_absolute_expression ()) < 0)
276 as_bad (".COMMon length (%d.) <0! Ignored.", temp
);
277 ignore_rest_of_line ();
282 symbolP
= symbol_find_or_make (name
);
284 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
286 as_bad ("Ignoring attempt to re-define symbol");
287 ignore_rest_of_line ();
290 if (S_GET_VALUE (symbolP
) != 0)
292 if (S_GET_VALUE (symbolP
) != size
)
294 as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.",
295 S_GET_NAME (symbolP
), (long) S_GET_VALUE (symbolP
), size
);
298 know (symbolP
->sy_frag
== &zero_address_frag
);
299 if (*input_line_pointer
!= ',')
304 input_line_pointer
++;
307 if (! have_align
|| *input_line_pointer
!= '"')
313 temp
= get_absolute_expression ();
317 as_warn ("Common alignment negative; 0 assumed");
329 old_subsec
= now_subseg
;
332 /* convert to a power of 2 alignment */
333 for (align
= 0; (temp
& 1) == 0; temp
>>= 1, ++align
);
336 as_bad ("Common alignment not a power of 2");
337 ignore_rest_of_line ();
346 record_alignment (sbss_section
, align
);
347 obj_elf_section_change_hook();
348 subseg_set (sbss_section
, 0);
352 record_alignment (zbss_section
, align
);
353 obj_elf_section_change_hook();
354 subseg_set (zbss_section
, 0);
358 record_alignment (tbss_section
, align
);
359 obj_elf_section_change_hook();
360 subseg_set (tbss_section
, 0);
368 frag_align (align
, 0, 0);
373 if (S_GET_SEGMENT (symbolP
) == sbss_section
)
374 symbolP
->sy_frag
->fr_symbol
= 0;
378 if (S_GET_SEGMENT (symbolP
) == zbss_section
)
379 symbolP
->sy_frag
->fr_symbol
= 0;
383 if (S_GET_SEGMENT (symbolP
) == tbss_section
)
384 symbolP
->sy_frag
->fr_symbol
= 0;
391 symbolP
->sy_frag
= frag_now
;
392 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
,
393 (offsetT
) size
, (char *) 0);
395 S_SET_SIZE (symbolP
, size
);
399 case AREA_SDA
: S_SET_SEGMENT (symbolP
, sbss_section
); break;
400 case AREA_ZDA
: S_SET_SEGMENT (symbolP
, zbss_section
); break;
401 case AREA_TDA
: S_SET_SEGMENT (symbolP
, tbss_section
); break;
406 S_CLEAR_EXTERNAL (symbolP
);
407 obj_elf_section_change_hook();
408 subseg_set (old_sec
, old_subsec
);
413 S_SET_VALUE (symbolP
, (valueT
) size
);
414 S_SET_ALIGN (symbolP
, temp
);
415 S_SET_EXTERNAL (symbolP
);
419 case AREA_SDA
: S_SET_SEGMENT (symbolP
, scommon_section
); break;
420 case AREA_ZDA
: S_SET_SEGMENT (symbolP
, zcommon_section
); break;
421 case AREA_TDA
: S_SET_SEGMENT (symbolP
, tcommon_section
); break;
429 input_line_pointer
++;
430 /* @@ Some use the dot, some don't. Can we get some consistency?? */
431 if (*input_line_pointer
== '.')
432 input_line_pointer
++;
433 /* @@ Some say data, some say bss. */
434 if (strncmp (input_line_pointer
, "bss\"", 4)
435 && strncmp (input_line_pointer
, "data\"", 5))
437 while (*--input_line_pointer
!= '"')
439 input_line_pointer
--;
440 goto bad_common_segment
;
442 while (*input_line_pointer
++ != '"')
444 goto allocate_common
;
447 symbolP
->bsym
->flags
|= BSF_OBJECT
;
449 demand_empty_rest_of_line ();
454 p
= input_line_pointer
;
455 while (*p
&& *p
!= '\n')
459 as_bad ("bad .common segment %s", input_line_pointer
+ 1);
461 input_line_pointer
= p
;
462 ignore_rest_of_line ();
468 set_machine (int number
)
471 bfd_set_arch_mach (stdoutput
, TARGET_ARCH
, machine
);
475 case 0: processor_mask
= PROCESSOR_V850
; break;
476 /* start-sanitize-v850e */
477 case bfd_mach_v850e
: processor_mask
= PROCESSOR_V850E
; break;
478 case bfd_mach_v850eq
: processor_mask
= PROCESSOR_V850EQ
; break;
479 /* end-sanitize-v850e */
483 /* The target specific pseudo-ops which we support. */
484 const pseudo_typeS md_pseudo_table
[] =
486 {"sdata", v850_sdata
, 0},
487 {"tdata", v850_tdata
, 0},
488 {"zdata", v850_zdata
, 0},
489 {"sbss", v850_sbss
, 0},
490 {"tbss", v850_tbss
, 0},
491 {"zbss", v850_zbss
, 0},
492 {"rosdata", v850_rosdata
, 0},
493 {"rozdata", v850_rozdata
, 0},
494 {"bss", v850_bss
, 0},
495 {"offset", v850_offset
, 0},
497 {"zcomm", v850_comm
, AREA_ZDA
},
498 {"scomm", v850_comm
, AREA_SDA
},
499 {"tcomm", v850_comm
, AREA_TDA
},
500 {"v850", set_machine
, 0},
501 /* start-sanitize-v850e */
502 {"call_table_data", v850_call_table_data
, 0},
503 {"call_table_text", v850_call_table_text
, 0},
504 {"v850e", set_machine
, bfd_mach_v850e
},
505 {"v850eq", set_machine
, bfd_mach_v850eq
},
506 /* end-sanitize-v850e */
510 /* Opcode hash table. */
511 static struct hash_control
*v850_hash
;
513 /* This table is sorted. Suitable for searching by a binary search. */
514 static const struct reg_name pre_defined_registers
[] =
516 { "ep", 30 }, /* ep - element ptr */
517 { "gp", 4 }, /* gp - global ptr */
518 { "hp", 2 }, /* hp - handler stack ptr */
519 { "lp", 31 }, /* lp - link ptr */
552 { "sp", 3 }, /* sp - stack ptr */
553 { "tp", 5 }, /* tp - text ptr */
556 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
559 static const struct reg_name system_registers
[] =
561 /* start-sanitize-v850e */
567 /* end-sanitize-v850e */
575 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
577 /* start-sanitize-v850e */
578 static const struct reg_name system_list_registers
[] =
583 #define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name))
584 /* end-sanitize-v850e */
586 static const struct reg_name cc_names
[] =
611 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
613 /* reg_name_search does a binary search of the given register table
614 to see if "name" is a valid regiter name. Returns the register
615 number from the array on success, or -1 on failure. */
618 reg_name_search (regs
, regcount
, name
, accept_numbers
)
619 const struct reg_name
* regs
;
622 boolean accept_numbers
;
624 int middle
, low
, high
;
628 /* If the register name is a symbol, then evaluate it. */
629 if ((symbolP
= symbol_find (name
)) != NULL
)
631 /* If the symbol is an alias for another name then use that.
632 If the symbol is an alias for a number, then return the number. */
633 if (symbolP
->sy_value
.X_op
== O_symbol
)
635 name
= S_GET_NAME (symbolP
->sy_value
.X_add_symbol
);
637 else if (accept_numbers
)
639 int reg
= S_GET_VALUE (symbolP
);
641 if (reg
>= 0 && reg
<= 31)
651 middle
= (low
+ high
) / 2;
652 cmp
= strcasecmp (name
, regs
[middle
].name
);
658 return regs
[middle
].value
;
665 /* Summary of register_name().
667 * in: Input_line_pointer points to 1st char of operand.
669 * out: A expressionS.
670 * The operand may have been a register: in this case, X_op == O_register,
671 * X_add_number is set to the register number, and truth is returned.
672 * Input_line_pointer->(next non-blank) char after operand, or is in
673 * its original state.
676 register_name (expressionP
)
677 expressionS
* expressionP
;
684 /* Find the spelling of the operand */
685 start
= name
= input_line_pointer
;
687 c
= get_symbol_end ();
689 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
, FALSE
);
691 * input_line_pointer
= c
; /* put back the delimiting char */
693 /* look to see if it's in the register table */
696 expressionP
->X_op
= O_register
;
697 expressionP
->X_add_number
= reg_number
;
699 /* make the rest nice */
700 expressionP
->X_add_symbol
= NULL
;
701 expressionP
->X_op_symbol
= NULL
;
707 /* reset the line as if we had not done anything */
708 input_line_pointer
= start
;
714 /* Summary of system_register_name().
716 * in: Input_line_pointer points to 1st char of operand.
717 * expressionP points to an expression structure to be filled in.
718 * accept_numbers is true iff numerical register names may be used.
719 * start-sanitize-v850e
720 * accept_list_names is true iff the special names PS and SR may be
724 * out: A expressionS structure in expressionP.
725 * The operand may have been a register: in this case, X_op == O_register,
726 * X_add_number is set to the register number, and truth is returned.
727 * Input_line_pointer->(next non-blank) char after operand, or is in
728 * its original state.
731 system_register_name (expressionP
, accept_numbers
732 /* start-sanitize-v850e */
734 /* end-sanitize-v850e */
736 expressionS
* expressionP
;
737 boolean accept_numbers
;
738 /* start-sanitize-v850e */
739 boolean accept_list_names
;
740 /* end-sanitize-v850e */
747 /* Find the spelling of the operand */
748 start
= name
= input_line_pointer
;
750 c
= get_symbol_end ();
751 reg_number
= reg_name_search (system_registers
, SYSREG_NAME_CNT
, name
, accept_numbers
);
753 * input_line_pointer
= c
; /* put back the delimiting char */
758 input_line_pointer
= start
; /* reset input_line pointer */
760 if (isdigit (* input_line_pointer
))
762 reg_number
= strtol (input_line_pointer
, & input_line_pointer
, 10);
764 /* Make sure that the register number is allowable. */
767 /* start-sanitize-v850e */
770 /* end-sanitize-v850e */
776 /* start-sanitize-v850e */
777 else if (accept_list_names
)
779 c
= get_symbol_end ();
780 reg_number
= reg_name_search (system_list_registers
, SYSREGLIST_NAME_CNT
, name
, FALSE
);
782 * input_line_pointer
= c
; /* put back the delimiting char */
784 /* end-sanitize-v850e */
787 /* look to see if it's in the register table */
790 expressionP
->X_op
= O_register
;
791 expressionP
->X_add_number
= reg_number
;
793 /* make the rest nice */
794 expressionP
->X_add_symbol
= NULL
;
795 expressionP
->X_op_symbol
= NULL
;
801 /* reset the line as if we had not done anything */
802 input_line_pointer
= start
;
808 /* Summary of cc_name().
810 * in: Input_line_pointer points to 1st char of operand.
812 * out: A expressionS.
813 * The operand may have been a register: in this case, X_op == O_register,
814 * X_add_number is set to the register number, and truth is returned.
815 * Input_line_pointer->(next non-blank) char after operand, or is in
816 * its original state.
819 cc_name (expressionP
)
820 expressionS
* expressionP
;
827 /* Find the spelling of the operand */
828 start
= name
= input_line_pointer
;
830 c
= get_symbol_end ();
831 reg_number
= reg_name_search (cc_names
, CC_NAME_CNT
, name
, FALSE
);
833 * input_line_pointer
= c
; /* put back the delimiting char */
835 /* look to see if it's in the register table */
838 expressionP
->X_op
= O_constant
;
839 expressionP
->X_add_number
= reg_number
;
841 /* make the rest nice */
842 expressionP
->X_add_symbol
= NULL
;
843 expressionP
->X_op_symbol
= NULL
;
849 /* reset the line as if we had not done anything */
850 input_line_pointer
= start
;
857 skip_white_space (void)
859 while ( * input_line_pointer
== ' '
860 || * input_line_pointer
== '\t')
861 ++ input_line_pointer
;
864 /* start-sanitize-v850e */
865 /* Summary of parse_register_list ().
867 * in: Input_line_pointer points to 1st char of a list of registers.
868 * insn is the partially constructed instruction.
869 * operand is the operand being inserted.
871 * out: NULL if the parse completed successfully, otherwise a
872 * pointer to an error message is returned. If the parse
873 * completes the correct bit fields in the instruction
876 * Parses register lists with the syntax:
884 * and also parses constant epxressions whoes bits indicate the
885 * registers in the lists. The LSB in the expression refers to
886 * the lowest numbered permissable register in the register list,
887 * and so on upwards. System registers are considered to be very
894 unsigned long * insn
,
895 const struct v850_operand
* operand
898 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 };
899 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 };
900 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 };
905 /* Select a register array to parse. */
906 switch (operand
->shift
)
908 case 0xffe00001: regs
= type1_regs
; break;
909 case 0xfff8000f: regs
= type2_regs
; break;
910 case 0xfff8001f: regs
= type3_regs
; break;
912 as_bad ("unknown operand shift: %x\n", operand
->shift
);
913 return "internal failure in parse_register_list";
918 /* If the expression starts with a curly brace it is a register list.
919 Otherwise it is a constant expression, whoes bits indicate which
920 registers are to be included in the list. */
922 if (* input_line_pointer
!= '{')
930 if (exp
.X_op
!= O_constant
)
931 return "constant expression or register list expected";
933 if (regs
== type1_regs
)
935 if (exp
.X_add_number
& 0xFFFFF000)
936 return "high bits set in register list expression";
938 for (reg
= 20; reg
< 32; reg
++)
939 if (exp
.X_add_number
& (1 << (reg
- 20)))
941 for (i
= 0; i
< 32; i
++)
946 else if (regs
== type2_regs
)
948 if (exp
.X_add_number
& 0xFFFE0000)
949 return "high bits set in register list expression";
951 for (reg
= 1; reg
< 16; reg
++)
952 if (exp
.X_add_number
& (1 << (reg
- 1)))
954 for (i
= 0; i
< 32; i
++)
959 if (exp
.X_add_number
& (1 << 15))
962 if (exp
.X_add_number
& (1 << 16))
965 else /* regs == type3_regs */
967 if (exp
.X_add_number
& 0xFFFE0000)
968 return "high bits set in register list expression";
970 for (reg
= 16; reg
< 32; reg
++)
971 if (exp
.X_add_number
& (1 << (reg
- 16)))
973 for (i
= 0; i
< 32; i
++)
978 if (exp
.X_add_number
& (1 << 16))
985 input_line_pointer
++;
987 /* Parse the register list until a terminator (closing curly brace or new-line) is found. */
990 if (register_name (& exp
))
994 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
995 for (i
= 0; i
< 32; i
++)
997 if (regs
[ i
] == exp
.X_add_number
)
1006 return "illegal register included in list";
1009 else if (system_register_name (& exp
, true, true))
1011 if (regs
== type1_regs
)
1013 return "system registers cannot be included in list";
1015 else if (exp
.X_add_number
== 5)
1017 if (regs
== type2_regs
)
1018 return "PSW cannot be included in list";
1022 else if (exp
.X_add_number
< 4)
1025 return "High value system registers cannot be included in list";
1027 else if (* input_line_pointer
== '}')
1029 input_line_pointer
++;
1032 else if (* input_line_pointer
== ',')
1034 input_line_pointer
++;
1037 else if (* input_line_pointer
== '-')
1039 /* We have encountered a range of registers: rX - rY */
1043 /* Skip the dash. */
1044 ++ input_line_pointer
;
1046 /* Get the second register in the range. */
1047 if (! register_name (& exp2
))
1049 return "second register should follow dash in register list";
1050 exp2
.X_add_number
= exp
.X_add_number
;
1053 /* Add the rest of the registers in the range. */
1054 for (j
= exp
.X_add_number
+ 1; j
<= exp2
.X_add_number
; j
++)
1058 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
1059 for (i
= 0; i
< 32; i
++)
1070 return "illegal register included in list";
1084 /* end-sanitize-v850e */
1086 CONST
char * md_shortopts
= "m:";
1088 struct option md_longopts
[] =
1090 {NULL
, no_argument
, NULL
, 0}
1092 size_t md_longopts_size
= sizeof md_longopts
;
1096 md_show_usage (stream
)
1099 fprintf (stream
, "V850 options:\n");
1100 fprintf (stream
, "\t-mwarn_signed_overflow Warn if signed immediate values overflow\n");
1101 fprintf (stream
, "\t-mwarn_unsigned_overflow Warn if unsigned immediate values overflow\n");
1102 fprintf (stream
, "\t-mv850 The code is targeted at the v850\n");
1103 /* start-sanitize-v850e */
1104 fprintf (stream
, "\t-mv850e The code is targeted at the v850e\n");
1105 fprintf (stream
, "\t-mv850eq The code is targeted at the v850eq\n");
1106 /* end-sanitize-v850e */
1110 md_parse_option (c
, arg
)
1117 if (strcmp (arg
, "warn_signed_overflow") == 0)
1119 warn_signed_overflows
= TRUE
;
1121 else if (strcmp (arg
, "warn_unsigned_overflow") == 0)
1123 warn_unsigned_overflows
= TRUE
;
1125 else if (strcmp (arg
, "v850") == 0)
1128 processor_mask
= PROCESSOR_V850
;
1130 /* start-sanitize-v850e */
1131 else if (strcmp (arg
, "v850e") == 0)
1133 machine
= bfd_mach_v850e
;
1134 processor_mask
= PROCESSOR_V850E
;
1136 else if (strcmp (arg
, "v850eq") == 0)
1138 machine
= bfd_mach_v850eq
;
1139 processor_mask
= PROCESSOR_V850EQ
;
1141 /* end-sanitize-v850e */
1149 md_undefined_symbol (name
)
1156 md_atof (type
, litp
, sizep
)
1162 LITTLENUM_TYPE words
[4];
1178 return "bad call to md_atof";
1181 t
= atof_ieee (input_line_pointer
, type
, words
);
1183 input_line_pointer
= t
;
1187 for (i
= prec
- 1; i
>= 0; i
--)
1189 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
1199 md_convert_frag (abfd
, sec
, fragP
)
1204 subseg_change (sec
, 0);
1206 /* In range conditional or unconditional branch. */
1207 if (fragP
->fr_subtype
== 0 || fragP
->fr_subtype
== 2)
1209 fix_new (fragP
, fragP
->fr_fix
, 2, fragP
->fr_symbol
,
1210 fragP
->fr_offset
, 1, BFD_RELOC_UNUSED
+ (int)fragP
->fr_opcode
);
1214 /* Out of range conditional branch. Emit a branch around a jump. */
1215 else if (fragP
->fr_subtype
== 1)
1217 unsigned char *buffer
=
1218 (unsigned char *) (fragP
->fr_fix
+ fragP
->fr_literal
);
1220 /* Reverse the condition of the first branch. */
1222 /* Mask off all the displacement bits. */
1225 /* Now set the displacement bits so that we branch
1226 around the unconditional branch. */
1229 /* Now create the unconditional branch + fixup to the final
1231 md_number_to_chars (buffer
+ 2, 0x00000780, 4);
1232 fix_new (fragP
, fragP
->fr_fix
+ 2, 4, fragP
->fr_symbol
,
1233 fragP
->fr_offset
, 1, BFD_RELOC_UNUSED
+ (int)fragP
->fr_opcode
+ 1);
1237 /* Out of range unconditional branch. Emit a jump. */
1238 else if (fragP
->fr_subtype
== 3)
1240 md_number_to_chars (fragP
->fr_fix
+ fragP
->fr_literal
, 0x00000780, 4);
1241 fix_new (fragP
, fragP
->fr_fix
, 4, fragP
->fr_symbol
,
1242 fragP
->fr_offset
, 1, BFD_RELOC_UNUSED
+ (int)fragP
->fr_opcode
+ 1);
1251 md_section_align (seg
, addr
)
1255 int align
= bfd_get_section_alignment (stdoutput
, seg
);
1256 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
1262 char * prev_name
= "";
1263 register const struct v850_opcode
* op
;
1264 flagword applicable
;
1266 /* start-sanitize-v850e */
1267 if (strncmp (TARGET_CPU
, "v850eq", 6) == 0)
1270 machine
= bfd_mach_v850eq
;
1272 if (processor_mask
== -1)
1273 processor_mask
= PROCESSOR_V850EQ
;
1275 else if (strncmp (TARGET_CPU
, "v850e", 5) == 0)
1278 machine
= bfd_mach_v850e
;
1280 if (processor_mask
== -1)
1281 processor_mask
= PROCESSOR_V850E
;
1284 /* end-sanitize-v850e */
1285 if (strncmp (TARGET_CPU
, "v850", 4) == 0)
1290 if (processor_mask
== -1)
1291 processor_mask
= PROCESSOR_V850
;
1294 as_bad ("Unable to determine default target processor from string: %s",
1297 v850_hash
= hash_new();
1299 /* Insert unique names into hash table. The V850 instruction set
1300 has many identical opcode names that have different opcodes based
1301 on the operands. This hash table then provides a quick index to
1302 the first opcode with a particular name in the opcode table. */
1307 if (strcmp (prev_name
, op
->name
))
1309 prev_name
= (char *) op
->name
;
1310 hash_insert (v850_hash
, op
->name
, (char *) op
);
1315 bfd_set_arch_mach (stdoutput
, TARGET_ARCH
, machine
);
1317 applicable
= bfd_applicable_section_flags (stdoutput
);
1319 sdata_section
= subseg_new (".sdata", 0);
1320 bfd_set_section_flags (stdoutput
, sdata_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
));
1322 tdata_section
= subseg_new (".tdata", 0);
1323 bfd_set_section_flags (stdoutput
, tdata_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
));
1325 zdata_section
= subseg_new (".zdata", 0);
1326 bfd_set_section_flags (stdoutput
, zdata_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
));
1328 sbss_section
= subseg_new (".sbss", 0);
1329 bfd_set_section_flags (stdoutput
, sbss_section
, applicable
& SEC_ALLOC
);
1330 seg_info (sbss_section
)->bss
= 1;
1332 tbss_section
= subseg_new (".tbss", 0);
1333 bfd_set_section_flags (stdoutput
, tbss_section
, applicable
& SEC_ALLOC
);
1334 seg_info (tbss_section
)->bss
= 1;
1336 zbss_section
= subseg_new (".zbss", 0);
1337 bfd_set_section_flags (stdoutput
, zbss_section
, applicable
& SEC_ALLOC
);
1338 seg_info (zbss_section
)->bss
= 1;
1340 rosdata_section
= subseg_new (".rosdata", 0);
1341 bfd_set_section_flags (stdoutput
, rosdata_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_READONLY
));
1343 rozdata_section
= subseg_new (".rozdata", 0);
1344 bfd_set_section_flags (stdoutput
, rozdata_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_READONLY
));
1346 scommon_section
= subseg_new (".scommon", 0);
1347 bfd_set_section_flags (stdoutput
, scommon_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
| SEC_IS_COMMON
));
1349 zcommon_section
= subseg_new (".zcommon", 0);
1350 bfd_set_section_flags (stdoutput
, zcommon_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
| SEC_IS_COMMON
));
1352 tcommon_section
= subseg_new (".tcommon", 0);
1353 bfd_set_section_flags (stdoutput
, tcommon_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
| SEC_IS_COMMON
));
1355 /* start-sanitize-v850e */
1356 call_table_data_section
= subseg_new (".call_table_data", 0);
1357 bfd_set_section_flags (stdoutput
, call_table_data_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
| SEC_DATA
| SEC_HAS_CONTENTS
));
1359 call_table_text_section
= subseg_new (".call_table_text", 0);
1360 bfd_set_section_flags (stdoutput
, call_table_text_section
, applicable
& (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
| SEC_CODE
));
1361 /* end-sanitize-v850e */
1365 /* start-sanitize-v850e */
1366 static bfd_reloc_code_real_type
1367 handle_ctoff (const struct v850_operand
* operand
)
1369 if (operand
== NULL
)
1370 return BFD_RELOC_V850_CALLT_16_16_OFFSET
;
1372 if ( operand
->bits
!= 6
1373 || operand
->shift
!= 0)
1375 as_bad ("ctoff() relocation used on an instruction which does not support it");
1376 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1379 return BFD_RELOC_V850_CALLT_6_7_OFFSET
;
1381 /* end-sanitize-v850e */
1383 static bfd_reloc_code_real_type
1384 handle_sdaoff (const struct v850_operand
* operand
)
1386 if (operand
== NULL
) return BFD_RELOC_V850_SDA_16_16_OFFSET
;
1387 if (operand
->bits
== 15 && operand
->shift
== 17) return BFD_RELOC_V850_SDA_15_16_OFFSET
;
1388 /* start-sanitize-v850e */
1389 if (operand
->bits
== -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET
;
1390 /* end-sanitize-v850e */
1392 if ( operand
->bits
!= 16
1393 || operand
->shift
!= 16)
1395 as_bad ("sdaoff() relocation used on an instruction which does not support it");
1396 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1399 return BFD_RELOC_V850_SDA_16_16_OFFSET
;
1402 static bfd_reloc_code_real_type
1403 handle_zdaoff (const struct v850_operand
* operand
)
1405 if (operand
== NULL
) return BFD_RELOC_V850_ZDA_16_16_OFFSET
;
1406 if (operand
->bits
== 15 && operand
->shift
== 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET
;
1407 /* start-sanitize-v850e */
1408 if (operand
->bits
== -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET
;
1409 /* end-sanitize-v850e */
1411 if ( operand
->bits
!= 16
1412 || operand
->shift
!= 16)
1414 as_bad ("zdaoff() relocation used on an instruction which does not support it");
1415 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1418 return BFD_RELOC_V850_ZDA_16_16_OFFSET
;
1421 static bfd_reloc_code_real_type
1422 handle_tdaoff (const struct v850_operand
* operand
)
1424 if (operand
== NULL
) return BFD_RELOC_V850_TDA_7_7_OFFSET
; /* data item, not an instruction. */
1425 if (operand
->bits
== 6 && operand
->shift
== 1) return BFD_RELOC_V850_TDA_6_8_OFFSET
; /* sld.w/sst.w, operand: D8_6 */
1426 /* start-sanitize-v850e */
1427 if (operand
->bits
== 4 && operand
->insert
!= NULL
) return BFD_RELOC_V850_TDA_4_5_OFFSET
; /* sld.hu, operand: D5-4 */
1428 if (operand
->bits
== 4 && operand
->insert
== NULL
) return BFD_RELOC_V850_TDA_4_4_OFFSET
; /* sld.bu, operand: D4 */
1429 /* end-sanitize-v850e */
1430 if (operand
->bits
== 16 && operand
->shift
== 16) return BFD_RELOC_V850_TDA_16_16_OFFSET
; /* set1 & chums, operands: D16 */
1432 if (operand
->bits
!= 7)
1434 as_bad ("tdaoff() relocation used on an instruction which does not support it");
1435 return BFD_RELOC_64
; /* Used to indicate an error condition. */
1438 return operand
->insert
!= NULL
1439 ? BFD_RELOC_V850_TDA_7_8_OFFSET
/* sld.h/sst.h, operand: D8_7 */
1440 : BFD_RELOC_V850_TDA_7_7_OFFSET
; /* sld.b/sst.b, opreand: D7 */
1443 /* Warning: The code in this function relies upon the definitions
1444 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1445 matching the hard coded values contained herein. */
1447 static bfd_reloc_code_real_type
1448 v850_reloc_prefix (const struct v850_operand
* operand
)
1450 boolean paren_skipped
= false;
1453 /* Skip leading opening parenthesis. */
1454 if (* input_line_pointer
== '(')
1456 ++ input_line_pointer
;
1457 paren_skipped
= true;
1460 #define CHECK_(name, reloc) \
1461 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1463 input_line_pointer += strlen (name); \
1467 CHECK_ ("hi0", BFD_RELOC_HI16
);
1468 CHECK_ ("hi", BFD_RELOC_HI16_S
);
1469 CHECK_ ("lo", BFD_RELOC_LO16
);
1470 CHECK_ ("sdaoff", handle_sdaoff (operand
));
1471 CHECK_ ("zdaoff", handle_zdaoff (operand
));
1472 CHECK_ ("tdaoff", handle_tdaoff (operand
));
1474 /* start-sanitize-v850e */
1475 CHECK_ ("hilo", BFD_RELOC_32
);
1476 CHECK_ ("ctoff", handle_ctoff (operand
));
1477 /* end-sanitize-v850e */
1479 /* Restore skipped parenthesis. */
1481 -- input_line_pointer
;
1483 return BFD_RELOC_UNUSED
;
1491 char * start_of_operands
;
1492 struct v850_opcode
* opcode
;
1493 struct v850_opcode
* next_opcode
;
1494 const unsigned char * opindex_ptr
;
1498 unsigned long insn_size
;
1502 boolean extra_data_after_insn
= false;
1503 unsigned extra_data_len
;
1504 unsigned long extra_data
;
1505 char * saved_input_line_pointer
;
1507 /* Get the opcode. */
1508 for (s
= str
; *s
!= '\0' && ! isspace (*s
); s
++)
1514 /* find the first opcode with the proper name */
1515 opcode
= (struct v850_opcode
*)hash_find (v850_hash
, str
);
1518 as_bad ("Unrecognized opcode: `%s'", str
);
1519 ignore_rest_of_line ();
1524 while (isspace (* str
))
1527 start_of_operands
= str
;
1529 saved_input_line_pointer
= input_line_pointer
;
1533 const char * errmsg
= NULL
;
1537 if ((opcode
->processors
& processor_mask
) == 0)
1539 errmsg
= "Target processor does not support this instruction.";
1546 insn
= opcode
->opcode
;
1547 extra_data_after_insn
= false;
1549 input_line_pointer
= str
= start_of_operands
;
1551 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
1553 const struct v850_operand
* operand
;
1556 bfd_reloc_code_real_type reloc
;
1558 if (next_opindex
== 0)
1560 operand
= & v850_operands
[ * opindex_ptr
];
1564 operand
= & v850_operands
[ next_opindex
];
1570 while (*str
== ' ' || *str
== ',' || *str
== '[' || *str
== ']')
1573 if (operand
->flags
& V850_OPERAND_RELAX
)
1576 /* Gather the operand. */
1577 hold
= input_line_pointer
;
1578 input_line_pointer
= str
;
1580 /* lo(), hi(), hi0(), etc... */
1581 if ((reloc
= v850_reloc_prefix (operand
)) != BFD_RELOC_UNUSED
)
1583 if (reloc
== BFD_RELOC_64
) /* This is a fake reloc, used to indicate an error condition. */
1591 if (ex
.X_op
== O_constant
)
1595 case BFD_RELOC_V850_ZDA_16_16_OFFSET
:
1596 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]" and the like. */
1599 case BFD_RELOC_LO16
:
1601 /* Truncate, then sign extend the value. */
1602 ex
.X_add_number
= SEXT16 (ex
.X_add_number
);
1606 case BFD_RELOC_HI16
:
1608 /* Truncate, then sign extend the value. */
1609 ex
.X_add_number
= SEXT16 (ex
.X_add_number
>> 16);
1613 case BFD_RELOC_HI16_S
:
1615 /* Truncate, then sign extend the value. */
1616 int temp
= (ex
.X_add_number
>> 16) & 0xffff;
1618 temp
+= (ex
.X_add_number
>> 15) & 1;
1620 ex
.X_add_number
= SEXT16 (temp
);
1624 /* start-sanitize-v850e */
1626 if ((operand
->flags
& V850E_IMMEDIATE32
) == 0)
1628 errmsg
= "use bigger instruction";
1632 extra_data_after_insn
= true;
1634 extra_data
= ex
.X_add_number
;
1635 ex
.X_add_number
= 0;
1637 /* end-sanitize-v850e */
1640 fprintf (stderr
, "reloc: %d\n", reloc
);
1641 as_bad ("AAARG -> unhandled constant reloc");
1645 insn
= v850_insert_operand (insn
, operand
, ex
.X_add_number
,
1650 /* start-sanitize-v850e */
1651 if (reloc
== BFD_RELOC_32
)
1653 if ((operand
->flags
& V850E_IMMEDIATE32
) == 0)
1655 errmsg
= "use bigger instruction";
1659 extra_data_after_insn
= true;
1661 extra_data
= ex
.X_add_number
;
1663 /* end-sanitize-v850e */
1665 if (fc
> MAX_INSN_FIXUPS
)
1666 as_fatal ("too many fixups");
1668 fixups
[ fc
].exp
= ex
;
1669 fixups
[ fc
].opindex
= * opindex_ptr
;
1670 fixups
[ fc
].reloc
= reloc
;
1678 if ((operand
->flags
& V850_OPERAND_REG
) != 0)
1680 if (!register_name (& ex
))
1682 errmsg
= "invalid register name";
1685 if ((operand
->flags
& V850_NOT_R0
)
1686 && ex
.X_add_number
== 0)
1688 errmsg
= "register r0 cannot be used here";
1691 else if ((operand
->flags
& V850_OPERAND_SRG
) != 0)
1693 if (!system_register_name (& ex
, true
1694 /* start-sanitize-v850e */
1696 /* end-sanitize-v850e */
1699 errmsg
= "invalid system register name";
1702 else if ((operand
->flags
& V850_OPERAND_EP
) != 0)
1704 char * start
= input_line_pointer
;
1705 char c
= get_symbol_end ();
1707 if (strcmp (start
, "ep") != 0 && strcmp (start
, "r30") != 0)
1709 /* Put things back the way we found them. */
1710 *input_line_pointer
= c
;
1711 input_line_pointer
= start
;
1712 errmsg
= "expected EP register";
1716 *input_line_pointer
= c
;
1717 str
= input_line_pointer
;
1718 input_line_pointer
= hold
;
1720 while (*str
== ' ' || *str
== ',' || *str
== '[' || *str
== ']')
1724 else if ((operand
->flags
& V850_OPERAND_CC
) != 0)
1726 if (!cc_name (& ex
))
1728 errmsg
= "invalid condition code name";
1731 /* start-sanitize-v850e */
1732 else if (operand
->flags
& V850E_PUSH_POP
)
1734 errmsg
= parse_register_list (& insn
, operand
);
1736 /* The parse_register_list() function has already done everything, so fake a dummy expression. */
1737 ex
.X_op
= O_constant
;
1738 ex
.X_add_number
= 0;
1740 else if (operand
->flags
& V850E_IMMEDIATE16
)
1744 if (ex
.X_op
!= O_constant
)
1745 errmsg
= "constant expression expected";
1746 else if (ex
.X_add_number
& 0xffff0000)
1748 if (ex
.X_add_number
& 0xffff)
1749 errmsg
= "constant too big to fit into instruction";
1750 else if ((insn
& 0x001fffc0) == 0x00130780)
1751 ex
.X_add_number
>>= 16;
1753 errmsg
= "constant too big to fit into instruction";
1756 extra_data_after_insn
= true;
1758 extra_data
= ex
.X_add_number
;
1759 ex
.X_add_number
= 0;
1761 else if (operand
->flags
& V850E_IMMEDIATE32
)
1765 if (ex
.X_op
!= O_constant
)
1766 errmsg
= "constant expression expected";
1768 extra_data_after_insn
= true;
1770 extra_data
= ex
.X_add_number
;
1771 ex
.X_add_number
= 0;
1773 /* end-sanitize-v850e */
1774 else if (register_name (& ex
)
1775 && (operand
->flags
& V850_OPERAND_REG
) == 0)
1777 /* It is possible that an alias has been defined that
1778 matches a register name. For example the code may
1779 include a ".set ZERO, 0" directive, which matches
1780 the register name "zero". Attempt to reparse the
1781 field as an expression, and only complain if we
1782 cannot generate a constant. */
1784 input_line_pointer
= str
;
1788 if (ex
.X_op
!= O_constant
)
1789 errmsg
= "syntax error: register not expected";
1791 else if (system_register_name (& ex
, false
1792 /* start-sanitize-v850e */
1794 /* end-sanitize-v850e */
1796 && (operand
->flags
& V850_OPERAND_SRG
) == 0)
1798 errmsg
= "syntax error: system register not expected";
1800 else if (cc_name (&ex
)
1801 && (operand
->flags
& V850_OPERAND_CC
) == 0)
1803 errmsg
= "syntax error: condition code not expected";
1808 /* start-sanitize-v850e */
1810 If we are assembling a MOV instruction (or a CALLT.... :-)
1811 and the immediate value does not fit into the bits available
1812 then create a fake error so that the next MOV instruction
1813 will be selected. This one has a 32 bit immediate field. */
1815 if (((insn
& 0x07e0) == 0x0200)
1816 && ex
.X_op
== O_constant
1817 && (ex
.X_add_number
< (- (1 << (operand
->bits
- 1))) || ex
.X_add_number
> ((1 << operand
->bits
) - 1)))
1818 errmsg
= "use bigger instruction";
1819 /* end-sanitize-v850e */
1825 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n", insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
1830 errmsg
= "illegal operand";
1833 errmsg
= "missing operand";
1836 if ((operand
->flags
& (V850_OPERAND_REG
| V850_OPERAND_SRG
)) == 0)
1838 errmsg
= "invalid operand";
1841 insn
= v850_insert_operand (insn
, operand
, ex
.X_add_number
,
1846 insn
= v850_insert_operand (insn
, operand
, ex
.X_add_number
,
1851 /* We need to generate a fixup for this expression. */
1852 if (fc
>= MAX_INSN_FIXUPS
)
1853 as_fatal ("too many fixups");
1855 fixups
[ fc
].exp
= ex
;
1856 fixups
[ fc
].opindex
= * opindex_ptr
;
1857 fixups
[ fc
].reloc
= BFD_RELOC_UNUSED
;
1863 str
= input_line_pointer
;
1864 input_line_pointer
= hold
;
1866 while (*str
== ' ' || *str
== ',' || *str
== '[' || *str
== ']'
1875 next_opcode
= opcode
+ 1;
1876 if (next_opcode
->name
!= NULL
&& strcmp (next_opcode
->name
, opcode
->name
) == 0)
1878 opcode
= next_opcode
;
1883 ignore_rest_of_line ();
1884 input_line_pointer
= saved_input_line_pointer
;
1890 while (isspace (*str
))
1894 as_bad ("junk at end of line: `%s'", str
);
1896 input_line_pointer
= str
;
1898 /* Write out the instruction. */
1900 if (relaxable
&& fc
> 0)
1905 if (!strcmp (opcode
->name
, "br"))
1907 f
= frag_var (rs_machine_dependent
, 4, 2, 2,
1908 fixups
[0].exp
.X_add_symbol
,
1909 fixups
[0].exp
.X_add_number
,
1910 (char *)fixups
[0].opindex
);
1911 md_number_to_chars (f
, insn
, insn_size
);
1912 md_number_to_chars (f
+ 2, 0, 2);
1916 f
= frag_var (rs_machine_dependent
, 6, 4, 0,
1917 fixups
[0].exp
.X_add_symbol
,
1918 fixups
[0].exp
.X_add_number
,
1919 (char *)fixups
[0].opindex
);
1920 md_number_to_chars (f
, insn
, insn_size
);
1921 md_number_to_chars (f
+ 2, 0, 4);
1926 /* Four byte insns have an opcode with the two high bits on. */
1927 if ((insn
& 0x0600) == 0x0600)
1932 /* start-sanitize-v850e */
1933 /* Special case: 32 bit MOV */
1934 if ((insn
& 0xffe0) == 0x0620)
1936 /* end-sanitize-v850e */
1938 f
= frag_more (insn_size
);
1940 md_number_to_chars (f
, insn
, insn_size
);
1942 if (extra_data_after_insn
)
1944 f
= frag_more (extra_data_len
);
1946 md_number_to_chars (f
, extra_data
, extra_data_len
);
1948 extra_data_after_insn
= false;
1952 /* Create any fixups. At this point we do not use a
1953 bfd_reloc_code_real_type, but instead just use the
1954 BFD_RELOC_UNUSED plus the operand index. This lets us easily
1955 handle fixups for any operand type, although that is admittedly
1956 not a very exciting feature. We pick a BFD reloc type in
1958 for (i
= 0; i
< fc
; i
++)
1960 const struct v850_operand
* operand
;
1961 bfd_reloc_code_real_type reloc
;
1963 operand
= & v850_operands
[ fixups
[i
].opindex
];
1965 reloc
= fixups
[i
].reloc
;
1967 if (reloc
!= BFD_RELOC_UNUSED
)
1969 reloc_howto_type
* reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1977 size
= bfd_get_reloc_size (reloc_howto
);
1979 if (size
!= 2 && size
!= 4) /* XXX this will abort on an R_V850_8 reloc - is this reloc actually used ? */
1982 address
= (f
- frag_now
->fr_literal
) + insn_size
- size
;
1984 if (reloc
== BFD_RELOC_32
)
1989 fixP
= fix_new_exp (frag_now
, address
, size
,
1991 reloc_howto
->pc_relative
,
1996 case BFD_RELOC_LO16
:
1997 case BFD_RELOC_HI16
:
1998 case BFD_RELOC_HI16_S
:
1999 fixP
->fx_no_overflow
= 1;
2007 f
- frag_now
->fr_literal
, 4,
2009 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2010 (bfd_reloc_code_real_type
) (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)
2015 input_line_pointer
= saved_input_line_pointer
;
2019 /* If while processing a fixup, a reloc really needs to be created */
2020 /* then it is done here. */
2023 tc_gen_reloc (seg
, fixp
)
2029 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
2030 reloc
->sym_ptr_ptr
= & fixp
->fx_addsy
->bsym
;
2031 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2032 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
2034 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
2036 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2037 "reloc %d not supported by object file format", (int)fixp
->fx_r_type
);
2044 reloc
->addend
= fixp
->fx_addnumber
;
2049 /* Assume everything will fit in two bytes, then expand as necessary. */
2051 md_estimate_size_before_relax (fragp
, seg
)
2055 if (fragp
->fr_subtype
== 0)
2057 else if (fragp
->fr_subtype
== 2)
2065 md_pcrel_from (fixp
)
2068 /* If the symbol is undefined, or in a section other than our own,
2069 then let the linker figure it out. */
2070 if (fixp
->fx_addsy
!= (symbolS
*) NULL
&& ! S_IS_DEFINED (fixp
->fx_addsy
))
2072 /* The symbol is undefined. Let the linker figure it out. */
2075 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
2079 md_apply_fix3 (fixp
, valuep
, seg
)
2087 if (fixp
->fx_addsy
== (symbolS
*) NULL
)
2092 else if (fixp
->fx_pcrel
)
2096 value
= fixp
->fx_offset
;
2097 if (fixp
->fx_subsy
!= (symbolS
*) NULL
)
2099 if (S_GET_SEGMENT (fixp
->fx_subsy
) == absolute_section
)
2100 value
-= S_GET_VALUE (fixp
->fx_subsy
);
2103 /* We don't actually support subtracting a symbol. */
2104 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
2105 "expression too complex");
2110 if ((int) fixp
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
2113 const struct v850_operand
* operand
;
2116 opindex
= (int) fixp
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
2117 operand
= & v850_operands
[ opindex
];
2119 /* Fetch the instruction, insert the fully resolved operand
2120 value, and stuff the instruction back again.
2122 Note the instruction has been stored in little endian
2124 where
= fixp
->fx_frag
->fr_literal
+ fixp
->fx_where
;
2126 insn
= bfd_getl32 ((unsigned char *) where
);
2127 insn
= v850_insert_operand (insn
, operand
, (offsetT
) value
,
2128 fixp
->fx_file
, fixp
->fx_line
);
2129 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
2133 /* Nothing else to do here. */
2137 /* Determine a BFD reloc value based on the operand information.
2138 We are only prepared to turn a few of the operands into relocs. */
2140 if (operand
->bits
== 22)
2141 fixp
->fx_r_type
= BFD_RELOC_V850_22_PCREL
;
2142 else if (operand
->bits
== 9)
2143 fixp
->fx_r_type
= BFD_RELOC_V850_9_PCREL
;
2146 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2148 as_bad_where(fixp
->fx_file
, fixp
->fx_line
,
2149 "unresolved expression that must be resolved");
2154 else if (fixp
->fx_done
)
2156 /* We still have to insert the value into memory! */
2157 where
= fixp
->fx_frag
->fr_literal
+ fixp
->fx_where
;
2159 if (fixp
->fx_size
== 1)
2160 *where
= value
& 0xff;
2161 else if (fixp
->fx_size
== 2)
2162 bfd_putl16 (value
& 0xffff, (unsigned char *) where
);
2163 else if (fixp
->fx_size
== 4)
2164 bfd_putl32 (value
, (unsigned char *) where
);
2167 fixp
->fx_addnumber
= value
;
2172 /* Insert an operand value into an instruction. */
2174 static unsigned long
2175 v850_insert_operand (insn
, operand
, val
, file
, line
)
2177 const struct v850_operand
* operand
;
2182 if (operand
->insert
)
2184 const char * message
= NULL
;
2186 insn
= (*operand
->insert
) (insn
, val
, & message
);
2187 if (message
!= NULL
)
2189 if (file
== (char *) NULL
)
2192 as_warn_where (file
, line
, message
);
2197 if (operand
->bits
!= 32)
2202 if ((operand
->flags
& V850_OPERAND_SIGNED
) != 0)
2204 if (! warn_signed_overflows
)
2205 max
= (1 << operand
->bits
) - 1;
2207 max
= (1 << (operand
->bits
- 1)) - 1;
2209 min
= - (1 << (operand
->bits
- 1));
2213 max
= (1 << operand
->bits
) - 1;
2215 if (! warn_unsigned_overflows
)
2216 min
= - (1 << (operand
->bits
- 1));
2223 if (test
< (offsetT
) min
|| test
> (offsetT
) max
)
2225 const char * err
= "operand out of range (%s not between %ld and %ld)";
2228 /* Restore min and mix to expected values for decimal ranges. */
2229 if ((operand
->flags
& V850_OPERAND_SIGNED
) && ! warn_signed_overflows
)
2230 max
= (1 << (operand
->bits
- 1)) - 1;
2232 if (! (operand
->flags
& V850_OPERAND_SIGNED
)
2233 && ! warn_unsigned_overflows
)
2236 sprint_value (buf
, test
);
2237 if (file
== (char *) NULL
)
2238 as_warn (err
, buf
, min
, max
);
2240 as_warn_where (file
, line
, err
, buf
, min
, max
);
2244 insn
|= (((long) val
& ((1 << operand
->bits
) - 1)) << operand
->shift
);
2250 /* Parse a cons expression. We have to handle hi(), lo(), etc
2253 parse_cons_expression_v850 (exp
)
2256 /* See if there's a reloc prefix like hi() we have to handle. */
2257 hold_cons_reloc
= v850_reloc_prefix (NULL
);
2259 /* Do normal expression parsing. */
2263 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2264 found a reloc prefix, then we use that reloc, else we choose an
2265 appropriate one based on the size of the expression. */
2267 cons_fix_new_v850 (frag
, where
, size
, exp
)
2273 if (hold_cons_reloc
== BFD_RELOC_UNUSED
)
2276 hold_cons_reloc
= BFD_RELOC_32
;
2278 hold_cons_reloc
= BFD_RELOC_16
;
2280 hold_cons_reloc
= BFD_RELOC_8
;
2284 fix_new_exp (frag
, where
, size
, exp
, 0, hold_cons_reloc
);
2286 fix_new (frag
, where
, size
, NULL
, 0, 0, hold_cons_reloc
);