1 /* tc-tic54x.c -- Assembly code for the Texas Instruments TMS320C54X
2 Copyright (C) 1999-2016 Free Software Foundation, Inc.
3 Contributed by Timothy Wall (twall@cygnus.com)
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
22 /* Texas Instruments TMS320C54X machine specific gas.
23 Written by Timothy Wall (twall@alum.mit.edu).
25 Valuable things to do:
26 Pipeline conflict warnings
27 We encode/decode "ld #_label, dp" differently in relocatable files
28 This means we're not compatible with TI output containing those
29 expressions. We store the upper nine bits; TI stores the lower nine
30 bits. How they recover the original upper nine bits is beyond me.
32 Tests to add to expect testsuite:
33 '=' and '==' with .if, .elseif, and .break
35 Incompatibilities (mostly trivial):
37 We fill text section with zeroes instead of "nop"s
38 We don't convert '' or "" to a single instance
39 We don't convert '' to '\0'
40 We don't allow strings with .byte/.half/.short/.long
41 Probably details of the subsym stuff are different
42 TI sets labels to be data type 4 (T_INT); GAS uses T_NULL.
44 COFF1 limits section names to 8 characters.
45 Some of the default behavior changed from COFF1 to COFF2. */
49 #include "safe-ctype.h"
53 #include "struc-symbol.h"
54 #include "opcode/tic54x.h"
61 symbolS
*sym
; /* Symbol for this stag; value is offset. */
62 const char *name
; /* Shortcut to symbol name. */
63 bfd_vma size
; /* Size of struct/union. */
64 int current_bitfield_offset
; /* Temporary for tracking fields. */
66 struct stag_field
/* List of fields. */
69 bfd_vma offset
; /* Of start of this field. */
70 int bitfield_offset
; /* Of start of this field. */
71 struct stag
*stag
; /* If field is struct/union. */
72 struct stag_field
*next
;
74 /* For nesting; used only in stag construction. */
75 struct stag
*inner
; /* Enclosed .struct. */
76 struct stag
*outer
; /* Enclosing .struct. */
77 } *current_stag
= NULL
;
79 #define MAX_LINE 256 /* Lines longer than this are truncated by TI's asm. */
81 typedef struct _tic54x_insn
83 const insn_template
*tm
; /* Opcode template. */
85 char mnemonic
[MAX_LINE
]; /* Opcode name/mnemonic. */
86 char parmnemonic
[MAX_LINE
]; /* 2nd mnemonic of parallel insn. */
94 } operands
[MAX_OPERANDS
];
97 struct opstruct paroperands
[MAX_OPERANDS
];
101 int words
; /* Size of insn in 16-bit words. */
102 int using_default_dst
; /* Do we need to explicitly set an
103 omitted OP_DST operand? */
106 unsigned short word
; /* Final encoded opcode data. */
108 int r_nchars
; /* Relocation size. */
109 bfd_reloc_code_real_type r_type
; /* Relocation type. */
110 expressionS addr_expr
; /* Storage for unresolved expressions. */
116 VNONE
= 0, V541
= 1, V542
= 2, V543
= 3, V545
= 5, V548
= 8, V549
= 9,
117 V545LP
= 15, V546LP
= 16
122 c_mode
, /* 16-bit addresses. */
123 far_mode
/* >16-bit addresses. */
126 static segT stag_saved_seg
;
127 static subsegT stag_saved_subseg
;
129 const char comment_chars
[] = ";";
130 const char line_comment_chars
[] = ";*#"; /* At column zero only. */
131 const char line_separator_chars
[] = ""; /* Not permitted. */
133 int emitting_long
= 0;
135 /* Characters which indicate that this is a floating point constant. */
136 const char FLT_CHARS
[] = "fF";
138 /* Characters that can be used to separate mantissa from exp in FP
140 const char EXP_CHARS
[] = "eE";
142 const char *md_shortopts
= "";
144 #define OPTION_ADDRESS_MODE (OPTION_MD_BASE)
145 #define OPTION_CPU_VERSION (OPTION_ADDRESS_MODE + 1)
146 #define OPTION_COFF_VERSION (OPTION_CPU_VERSION + 1)
147 #define OPTION_STDERR_TO_FILE (OPTION_COFF_VERSION + 1)
149 struct option md_longopts
[] =
151 { "mfar-mode", no_argument
, NULL
, OPTION_ADDRESS_MODE
},
152 { "mf", no_argument
, NULL
, OPTION_ADDRESS_MODE
},
153 { "mcpu", required_argument
, NULL
, OPTION_CPU_VERSION
},
154 { "merrors-to-file", required_argument
, NULL
, OPTION_STDERR_TO_FILE
},
155 { "me", required_argument
, NULL
, OPTION_STDERR_TO_FILE
},
156 { NULL
, no_argument
, NULL
, 0},
159 size_t md_longopts_size
= sizeof (md_longopts
);
161 static int assembly_begun
= 0;
162 /* Addressing mode is not entirely implemented; the latest rev of the Other
163 assembler doesn't seem to make any distinction whatsoever; all relocations
164 are stored as extended relocatiosn. Older versions used REL16 vs RELEXT16,
165 but now it seems all relocations are RELEXT16. We use all RELEXT16.
167 The cpu version is kind of a waste of time as well. There is one
168 instruction (RND) for LP devices only, and several for devices with
169 extended addressing only. We include it for compatibility. */
170 static enum address_mode amode
= c_mode
;
171 static enum cpu_version cpu
= VNONE
;
173 /* Include string substitutions in listing? */
174 static int listing_sslist
= 0;
176 /* Did we do subsym substitutions on the line? */
177 static int substitution_line
= 0;
179 /* Last label seen. */
180 static symbolS
*last_label_seen
= NULL
;
182 /* This ensures that all new labels are unique. */
183 static int local_label_id
;
185 static struct hash_control
*subsym_recurse_hash
; /* Prevent infinite recurse. */
186 static struct hash_control
*math_hash
; /* Built-in math functions. */
187 /* Allow maximum levels of macro nesting; level 0 is the main substitution
188 symbol table. The other assembler only does 32 levels, so there! */
189 static struct hash_control
*subsym_hash
[100];
191 /* Keep track of local labels so we can substitute them before GAS sees them
192 since macros use their own 'namespace' for local labels, use a separate hash
194 We do our own local label handling 'cuz it's subtly different from the
197 We use our own macro nesting counter, since GAS overloads it when expanding
198 other things (like conditionals and repeat loops). */
199 static int macro_level
= 0;
200 static struct hash_control
*local_label_hash
[100];
201 /* Keep track of struct/union tags. */
202 static struct hash_control
*stag_hash
;
203 static struct hash_control
*op_hash
;
204 static struct hash_control
*parop_hash
;
205 static struct hash_control
*reg_hash
;
206 static struct hash_control
*mmreg_hash
;
207 static struct hash_control
*cc_hash
;
208 static struct hash_control
*cc2_hash
;
209 static struct hash_control
*cc3_hash
;
210 static struct hash_control
*sbit_hash
;
211 static struct hash_control
*misc_symbol_hash
;
213 /* Only word (et al.), align, or conditionals are allowed within
215 #define ILLEGAL_WITHIN_STRUCT() \
217 if (current_stag != NULL) \
219 as_bad (_("pseudo-op illegal within .struct/.union")); \
225 static void subsym_create_or_replace (char *, char *);
226 static char *subsym_lookup (char *, int);
227 static char *subsym_substitute (char *, int);
231 md_show_usage (FILE *stream
)
233 fprintf (stream
, _("C54x-specific command line options:\n"));
234 fprintf (stream
, _("-mfar-mode | -mf Use extended addressing\n"));
235 fprintf (stream
, _("-mcpu=<CPU version> Specify the CPU version\n"));
236 fprintf (stream
, _("-merrors-to-file <filename>\n"));
237 fprintf (stream
, _("-me <filename> Redirect errors to a file\n"));
240 /* Output a single character (upper octect is zero). */
243 tic54x_emit_char (char c
)
247 expn
.X_op
= O_constant
;
248 expn
.X_add_number
= c
;
249 emit_expr (&expn
, 2);
252 /* Walk backwards in the frag chain. */
255 frag_prev (fragS
*frag
, segT seg
)
257 segment_info_type
*seginfo
= seg_info (seg
);
260 for (fragp
= seginfo
->frchainP
->frch_root
; fragp
; fragp
= fragp
->fr_next
)
261 if (fragp
->fr_next
== frag
)
268 bit_offset_frag (fragS
*frag
, segT seg
)
272 if (frag
->fr_fix
== 0
273 && frag
->fr_opcode
== NULL
274 && frag
->tc_frag_data
== 0)
275 frag
= frag_prev (frag
, seg
);
282 /* Return the number of bits allocated in the most recent word, or zero if
283 none. .field/.space/.bes may leave words partially allocated. */
286 frag_bit_offset (fragS
*frag
, segT seg
)
288 frag
= bit_offset_frag (frag
, seg
);
291 return frag
->fr_opcode
!= NULL
? -1 : frag
->tc_frag_data
;
296 /* Read an expression from a C string; returns a pointer past the end of the
300 parse_expression (char *str
, expressionS
*expn
)
305 tmp
= input_line_pointer
; /* Save line pointer. */
306 input_line_pointer
= str
;
308 s
= input_line_pointer
;
309 input_line_pointer
= tmp
; /* Restore line pointer. */
310 return s
; /* Return pointer to where parsing stopped. */
313 /* .asg "character-string"|character-string, symbol
315 .eval is the only pseudo-op allowed to perform arithmetic on substitution
316 symbols. all other use of symbols defined with .asg are currently
320 tic54x_asg (int x ATTRIBUTE_UNUSED
)
325 int quoted
= *input_line_pointer
== '"';
327 ILLEGAL_WITHIN_STRUCT ();
332 str
= demand_copy_C_string (&len
);
333 c
= *input_line_pointer
;
337 str
= input_line_pointer
;
338 while ((c
= *input_line_pointer
) != ',')
340 if (is_end_of_line
[(int) *input_line_pointer
])
342 ++input_line_pointer
;
344 *input_line_pointer
= 0;
348 as_bad (_("Comma and symbol expected for '.asg STRING, SYMBOL'"));
349 ignore_rest_of_line ();
353 ++input_line_pointer
;
354 c
= get_symbol_name (&name
); /* Get terminator. */
355 if (!ISALPHA (*name
))
357 as_bad (_("symbols assigned with .asg must begin with a letter"));
358 ignore_rest_of_line ();
363 name
= xstrdup (name
);
364 subsym_create_or_replace (name
, str
);
365 (void) restore_line_pointer (c
);
366 demand_empty_rest_of_line ();
369 /* .eval expression, symbol
370 There's something screwy about this. The other assembler sometimes does and
371 sometimes doesn't substitute symbols defined with .eval.
372 We'll put the symbols into the subsym table as well as the normal symbol
373 table, since that's what works best. */
376 tic54x_eval (int x ATTRIBUTE_UNUSED
)
382 char valuestr
[32], *tmp
;
385 ILLEGAL_WITHIN_STRUCT ();
389 quoted
= *input_line_pointer
== '"';
391 ++input_line_pointer
;
392 value
= get_absolute_expression ();
395 if (*input_line_pointer
!= '"')
397 as_bad (_("Unterminated string after absolute expression"));
398 ignore_rest_of_line ();
401 ++input_line_pointer
;
403 if (*input_line_pointer
++ != ',')
405 as_bad (_("Comma and symbol expected for '.eval EXPR, SYMBOL'"));
406 ignore_rest_of_line ();
409 c
= get_symbol_name (&name
); /* Get terminator. */
410 name
= xstrdup (name
);
411 (void) restore_line_pointer (c
);
413 if (!ISALPHA (*name
))
415 as_bad (_("symbols assigned with .eval must begin with a letter"));
416 ignore_rest_of_line ();
419 symbolP
= symbol_new (name
, absolute_section
,
420 (valueT
) value
, &zero_address_frag
);
421 SF_SET_LOCAL (symbolP
);
422 symbol_table_insert (symbolP
);
424 /* The "other" assembler sometimes doesn't put .eval's in the subsym table
425 But since there's not written rule as to when, don't even bother trying
426 to match their behavior. */
427 sprintf (valuestr
, "%d", value
);
428 tmp
= xstrdup (valuestr
);
429 subsym_create_or_replace (name
, tmp
);
431 demand_empty_rest_of_line ();
434 /* .bss symbol, size [, [blocking flag] [, alignment flag]
436 alignment is to a longword boundary; blocking is to 128-word boundary.
438 1) if there is a hole in memory, this directive should attempt to fill it
439 (not yet implemented).
441 2) if the blocking flag is not set, allocate at the current SPC
442 otherwise, check to see if the current SPC plus the space to be
443 allocated crosses the page boundary (128 words).
444 if there's not enough space, create a hole and align with the next page
446 (not yet implemented). */
449 tic54x_bss (int x ATTRIBUTE_UNUSED
)
456 subsegT current_subseg
;
461 ILLEGAL_WITHIN_STRUCT ();
463 current_seg
= now_seg
; /* Save current seg. */
464 current_subseg
= now_subseg
; /* Save current subseg. */
466 c
= get_symbol_name (&name
); /* Get terminator. */
468 c
= * ++ input_line_pointer
;
471 as_bad (_(".bss size argument missing\n"));
472 ignore_rest_of_line ();
476 ++input_line_pointer
;
477 words
= get_absolute_expression ();
480 as_bad (_(".bss size %d < 0!"), words
);
481 ignore_rest_of_line ();
485 if (*input_line_pointer
== ',')
487 /* The blocking flag may be missing. */
488 ++input_line_pointer
;
489 if (*input_line_pointer
!= ',')
490 block
= get_absolute_expression ();
494 if (*input_line_pointer
== ',')
496 ++input_line_pointer
;
497 align
= get_absolute_expression ();
505 subseg_set (bss_section
, 0);
506 symbolP
= symbol_find_or_make (name
);
508 if (S_GET_SEGMENT (symbolP
) == bss_section
)
509 symbolP
->sy_frag
->fr_symbol
= (symbolS
*) NULL
;
511 symbol_set_frag (symbolP
, frag_now
);
512 p
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
,
513 (offsetT
) (words
* OCTETS_PER_BYTE
), (char *) 0);
514 *p
= 0; /* Fill char. */
516 S_SET_SEGMENT (symbolP
, bss_section
);
518 /* The symbol may already have been created with a preceding
519 ".globl" directive -- be careful not to step on storage class
520 in that case. Otherwise, set it to static. */
521 if (S_GET_STORAGE_CLASS (symbolP
) != C_EXT
)
522 S_SET_STORAGE_CLASS (symbolP
, C_STAT
);
526 /* s_align eats end of line; restore it */
528 --input_line_pointer
;
532 bss_section
->flags
|= SEC_TIC54X_BLOCK
;
534 subseg_set (current_seg
, current_subseg
); /* Restore current seg. */
535 demand_empty_rest_of_line ();
539 stag_add_field_symbols (struct stag
*stag
,
543 const char *root_stag_name
)
546 struct stag_field
*field
= stag
->field
;
548 /* Construct a symbol for every field contained within this structure
549 including fields within structure fields. */
550 prefix
= concat (path
, *path
? "." : "", NULL
);
552 while (field
!= NULL
)
554 char *name
= concat (prefix
, field
->name
, NULL
);
559 sym
= symbol_new (name
, absolute_section
,
560 (field
->stag
? field
->offset
:
561 (valueT
) (base_offset
+ field
->offset
)),
564 symbol_table_insert (sym
);
570 replacement
= concat (S_GET_NAME (rootsym
), "+", root_stag_name
,
571 name
+ strlen (S_GET_NAME (rootsym
)), NULL
);
572 hash_insert (subsym_hash
[0], name
, replacement
);
575 /* Recurse if the field is a structure.
576 Note the field offset is relative to the outermost struct. */
577 if (field
->stag
!= NULL
)
578 stag_add_field_symbols (field
->stag
, name
,
580 rootsym
, root_stag_name
);
587 /* Keep track of stag fields so that when structures are nested we can add the
588 complete dereferencing symbols to the symbol table. */
591 stag_add_field (struct stag
*parent
,
596 struct stag_field
*sfield
= XCNEW (struct stag_field
);
598 sfield
->name
= xstrdup (name
);
599 sfield
->offset
= offset
;
600 sfield
->bitfield_offset
= parent
->current_bitfield_offset
;
602 if (parent
->field
== NULL
)
603 parent
->field
= sfield
;
606 struct stag_field
*sf
= parent
->field
;
607 while (sf
->next
!= NULL
)
611 /* Only create a symbol for this field if the parent has no name. */
612 if (!strncmp (".fake", parent
->name
, 5))
614 symbolS
*sym
= symbol_new (name
, absolute_section
,
615 (valueT
) offset
, &zero_address_frag
);
617 symbol_table_insert (sym
);
621 /* [STAG] .struct [OFFSET]
622 Start defining structure offsets (symbols in absolute section). */
625 tic54x_struct (int arg
)
627 int start_offset
= 0;
632 /* Starting a new struct, switch to absolute section. */
633 stag_saved_seg
= now_seg
;
634 stag_saved_subseg
= now_subseg
;
635 subseg_set (absolute_section
, 0);
637 /* Align the current pointer. */
638 else if (current_stag
->current_bitfield_offset
!= 0)
640 ++abs_section_offset
;
641 current_stag
->current_bitfield_offset
= 0;
644 /* Offset expression is only meaningful for global .structs. */
647 /* Offset is ignored in inner structs. */
649 if (!is_end_of_line
[(int) *input_line_pointer
])
650 start_offset
= get_absolute_expression ();
657 /* Nesting, link to outer one. */
658 current_stag
->inner
= XCNEW (struct stag
);
659 current_stag
->inner
->outer
= current_stag
;
660 current_stag
= current_stag
->inner
;
662 as_warn (_("Offset on nested structures is ignored"));
663 start_offset
= abs_section_offset
;
667 current_stag
= XCNEW (struct stag
);
668 abs_section_offset
= start_offset
;
670 current_stag
->is_union
= is_union
;
672 if (line_label
== NULL
)
674 static int struct_count
= 0;
675 char fake
[] = ".fake_stagNNNNNNN";
676 sprintf (fake
, ".fake_stag%d", struct_count
++);
677 current_stag
->sym
= symbol_new (fake
, absolute_section
,
678 (valueT
) abs_section_offset
,
683 char * label
= xstrdup (S_GET_NAME (line_label
));
684 current_stag
->sym
= symbol_new (label
,
686 (valueT
) abs_section_offset
,
690 current_stag
->name
= S_GET_NAME (current_stag
->sym
);
691 SF_SET_LOCAL (current_stag
->sym
);
692 /* Nested .structs don't go into the symbol table. */
693 if (current_stag
->outer
== NULL
)
694 symbol_table_insert (current_stag
->sym
);
699 /* [LABEL] .endstruct
700 finish defining structure offsets; optional LABEL's value will be the size
704 tic54x_endstruct (int is_union
)
708 !strncmp (current_stag
->name
, ".fake", 5) ? "" : current_stag
->name
;
710 if (!current_stag
|| current_stag
->is_union
!= is_union
)
712 as_bad (_(".end%s without preceding .%s"),
713 is_union
? "union" : "struct",
714 is_union
? "union" : "struct");
715 ignore_rest_of_line ();
719 /* Align end of structures. */
720 if (current_stag
->current_bitfield_offset
)
722 ++abs_section_offset
;
723 current_stag
->current_bitfield_offset
= 0;
726 if (current_stag
->is_union
)
727 size
= current_stag
->size
;
729 size
= abs_section_offset
- S_GET_VALUE (current_stag
->sym
);
730 if (line_label
!= NULL
)
732 S_SET_VALUE (line_label
, size
);
733 symbol_table_insert (line_label
);
737 /* Union size has already been calculated. */
738 if (!current_stag
->is_union
)
739 current_stag
->size
= size
;
740 /* Nested .structs don't get put in the stag table. */
741 if (current_stag
->outer
== NULL
)
743 hash_insert (stag_hash
, current_stag
->name
, current_stag
);
744 stag_add_field_symbols (current_stag
, path
,
745 S_GET_VALUE (current_stag
->sym
),
748 current_stag
= current_stag
->outer
;
750 /* If this is a nested .struct/.union, add it as a field to the enclosing
751 one. otherwise, restore the section we were in. */
752 if (current_stag
!= NULL
)
754 stag_add_field (current_stag
, current_stag
->inner
->name
,
755 S_GET_VALUE (current_stag
->inner
->sym
),
756 current_stag
->inner
);
759 subseg_set (stag_saved_seg
, stag_saved_subseg
);
763 Reference a structure within a structure, as a sized field with an optional
765 If used outside of a .struct/.endstruct, overlays the given structure
766 format on the existing allocated space. */
769 tic54x_tag (int ignore ATTRIBUTE_UNUSED
)
772 int c
= get_symbol_name (&name
);
773 struct stag
*stag
= (struct stag
*) hash_find (stag_hash
, name
);
778 as_bad (_("Unrecognized struct/union tag '%s'"), name
);
780 as_bad (_(".tag requires a structure tag"));
781 ignore_rest_of_line ();
784 if (line_label
== NULL
)
786 as_bad (_("Label required for .tag"));
787 ignore_rest_of_line ();
794 label
= xstrdup (S_GET_NAME (line_label
));
795 if (current_stag
!= NULL
)
796 stag_add_field (current_stag
, label
,
797 abs_section_offset
- S_GET_VALUE (current_stag
->sym
),
801 symbolS
*sym
= symbol_find (label
);
805 as_bad (_(".tag target '%s' undefined"), label
);
806 ignore_rest_of_line ();
810 stag_add_field_symbols (stag
, S_GET_NAME (sym
),
811 S_GET_VALUE (stag
->sym
), sym
, stag
->name
);
816 /* Bump by the struct size, but only if we're within a .struct section. */
817 if (current_stag
!= NULL
&& !current_stag
->is_union
)
818 abs_section_offset
+= stag
->size
;
820 (void) restore_line_pointer (c
);
821 demand_empty_rest_of_line ();
825 /* Handle all .byte, .char, .double, .field, .float, .half, .int, .long,
826 .short, .string, .ubyte, .uchar, .uhalf, .uint, .ulong, .ushort, .uword,
830 tic54x_struct_field (int type
)
834 int new_bitfield_offset
= 0;
835 int field_align
= current_stag
->current_bitfield_offset
!= 0;
836 int longword_align
= 0;
839 if (!is_end_of_line
[(int) *input_line_pointer
])
840 count
= get_absolute_expression ();
856 case '*': /* String. */
865 case '.': /* Bitfield. */
867 if (count
< 1 || count
> 32)
869 as_bad (_(".field count '%d' out of range (1 <= X <= 32)"), count
);
870 ignore_rest_of_line ();
873 if (current_stag
->current_bitfield_offset
+ count
> 16)
875 /* Set the appropriate size and new field offset. */
885 new_bitfield_offset
= count
- 16;
888 new_bitfield_offset
= count
;
893 new_bitfield_offset
= current_stag
->current_bitfield_offset
+ count
;
897 as_bad (_("Unrecognized field type '%c'"), type
);
898 ignore_rest_of_line ();
904 /* Align to the actual starting position of the field. */
905 current_stag
->current_bitfield_offset
= 0;
906 ++abs_section_offset
;
908 /* Align to longword boundary. */
909 if (longword_align
&& (abs_section_offset
& 0x1))
910 ++abs_section_offset
;
912 if (line_label
== NULL
)
914 static int fieldno
= 0;
915 char fake
[] = ".fake_fieldNNNNN";
917 sprintf (fake
, ".fake_field%d", fieldno
++);
918 stag_add_field (current_stag
, fake
,
919 abs_section_offset
- S_GET_VALUE (current_stag
->sym
),
926 label
= xstrdup (S_GET_NAME (line_label
));
927 stag_add_field (current_stag
, label
,
928 abs_section_offset
- S_GET_VALUE (current_stag
->sym
),
933 if (current_stag
->is_union
)
935 /* Note we treat the element as if it were an array of COUNT. */
936 if (current_stag
->size
< (unsigned) size
* count
)
937 current_stag
->size
= size
* count
;
941 abs_section_offset
+= (unsigned) size
* count
;
942 current_stag
->current_bitfield_offset
= new_bitfield_offset
;
947 /* Handle .byte, .word. .int, .long and all variants. */
950 tic54x_cons (int type
)
955 /* If we're within a .struct construct, don't actually allocate space. */
956 if (current_stag
!= NULL
)
958 tic54x_struct_field (type
);
962 #ifdef md_flush_pending_output
963 md_flush_pending_output ();
966 generate_lineno_debug ();
968 /* Align long words to long word boundaries (4 octets). */
969 if (type
== 'l' || type
== 'L')
971 frag_align (2, 0, 2);
972 /* If there's a label, assign it to the first allocated word. */
973 if (line_label
!= NULL
)
975 symbol_set_frag (line_label
, frag_now
);
976 S_SET_VALUE (line_label
, frag_now_fix ());
1000 if (*input_line_pointer
== '"')
1002 input_line_pointer
++;
1003 while (is_a_char (c
= next_char_of_string ()))
1004 tic54x_emit_char (c
);
1005 know (input_line_pointer
[-1] == '\"');
1011 input_line_pointer
= parse_expression (input_line_pointer
, &expn
);
1012 if (expn
.X_op
== O_constant
)
1014 offsetT value
= expn
.X_add_number
;
1015 /* Truncate overflows. */
1019 if ((value
> 0 && value
> 0xFF)
1020 || (value
< 0 && value
< - 0x100))
1021 as_warn (_("Overflow in expression, truncated to 8 bits"));
1024 if ((value
> 0 && value
> 0xFFFF)
1025 || (value
< 0 && value
< - 0x10000))
1026 as_warn (_("Overflow in expression, truncated to 16 bits"));
1030 if (expn
.X_op
!= O_constant
&& octets
< 2)
1032 /* Disallow .byte with a non constant expression that will
1033 require relocation. */
1034 as_bad (_("Relocatable values require at least WORD storage"));
1035 ignore_rest_of_line ();
1039 if (expn
.X_op
!= O_constant
1043 /* FIXME -- at one point TI tools used to output REL16
1044 relocations, but I don't think the latest tools do at all
1045 The current tools output extended relocations regardless of
1046 the addressing mode (I actually think that ".c_mode" is
1047 totally ignored in the latest tools). */
1050 emit_expr (&expn
, 4);
1056 emitting_long
= octets
== 4;
1057 emit_expr (&expn
, (octets
== 1) ? 2 : octets
);
1062 while (*input_line_pointer
++ == ',');
1064 input_line_pointer
--; /* Put terminator back into stream. */
1065 demand_empty_rest_of_line ();
1068 /* .global <symbol>[,...,<symbolN>]
1069 .def <symbol>[,...,<symbolN>]
1070 .ref <symbol>[,...,<symbolN>]
1072 These all identify global symbols.
1074 .def means the symbol is defined in the current module and can be accessed
1075 by other files. The symbol should be placed in the symbol table.
1077 .ref means the symbol is used in the current module but defined in another
1078 module. The linker is to resolve this symbol's definition at link time.
1080 .global should act as a .ref or .def, as needed.
1082 global, def and ref all have symbol storage classes of C_EXT.
1084 I can't identify any difference in how the "other" c54x assembler treats
1085 these, so we ignore the type here. */
1088 tic54x_global (int type
)
1095 as_warn (_("Use of .def/.ref is deprecated. Use .global instead"));
1097 ILLEGAL_WITHIN_STRUCT ();
1101 c
= get_symbol_name (&name
);
1102 symbolP
= symbol_find_or_make (name
);
1103 c
= restore_line_pointer (c
);
1105 S_SET_STORAGE_CLASS (symbolP
, C_EXT
);
1108 input_line_pointer
++;
1109 if (is_end_of_line
[(int) *input_line_pointer
])
1110 c
= *input_line_pointer
;
1115 demand_empty_rest_of_line ();
1118 /* Remove the symbol from the local label hash lookup. */
1121 tic54x_remove_local_label (const char *key
, void *value ATTRIBUTE_UNUSED
)
1123 void *elem
= hash_delete (local_label_hash
[macro_level
], key
, FALSE
);
1127 /* Reset all local labels. */
1130 tic54x_clear_local_labels (int ignored ATTRIBUTE_UNUSED
)
1132 hash_traverse (local_label_hash
[macro_level
], tic54x_remove_local_label
);
1137 .sect "section name"
1140 make sure local labels get cleared when changing sections
1142 ARG is 't' for text, 'd' for data, or '*' for a named section
1144 For compatibility, '*' sections are SEC_CODE if instructions are
1145 encountered, or SEC_DATA if not.
1149 tic54x_sect (int arg
)
1151 ILLEGAL_WITHIN_STRUCT ();
1153 /* Local labels are cleared when changing sections. */
1154 tic54x_clear_local_labels (0);
1158 else if (arg
== 'd')
1165 /* If there are quotes, remove them. */
1166 if (*input_line_pointer
== '"')
1168 name
= demand_copy_C_string (&len
);
1169 demand_empty_rest_of_line ();
1170 name
= strcpy (xmalloc (len
+ 10), name
);
1176 c
= get_symbol_name (&name
);
1178 name
= strcpy (xmalloc (len
+ 10), name
);
1179 (void) restore_line_pointer (c
);
1180 demand_empty_rest_of_line ();
1183 /* Make sure all named initialized sections flagged properly. If we
1184 encounter instructions, we'll flag it with SEC_CODE as well. */
1185 strcat (name
, ",\"w\"\n");
1186 input_scrub_insert_line (name
);
1187 obj_coff_section (0);
1189 /* If there was a line label, make sure that it gets assigned the proper
1190 section. This is for compatibility, even though the actual behavior
1191 is not explicitly defined. For consistency, we make .sect behave
1192 like .usect, since that is probably what people expect. */
1193 if (line_label
!= NULL
)
1195 S_SET_SEGMENT (line_label
, now_seg
);
1196 symbol_set_frag (line_label
, frag_now
);
1197 S_SET_VALUE (line_label
, frag_now_fix ());
1198 if (S_GET_STORAGE_CLASS (line_label
) != C_EXT
)
1199 S_SET_STORAGE_CLASS (line_label
, C_LABEL
);
1204 /* [symbol] .space space_in_bits
1205 [symbol] .bes space_in_bits
1206 BES puts the symbol at the *last* word allocated
1208 cribbed from s_space. */
1211 tic54x_space (int arg
)
1217 int bits_per_byte
= (OCTETS_PER_BYTE
* 8);
1219 symbolS
*label
= line_label
;
1222 ILLEGAL_WITHIN_STRUCT ();
1224 #ifdef md_flush_pending_output
1225 md_flush_pending_output ();
1228 /* Read the bit count. */
1231 /* Some expressions are unresolvable until later in the assembly pass;
1232 postpone until relaxation/fixup. we also have to postpone if a previous
1233 partial allocation has not been completed yet. */
1234 if (expn
.X_op
!= O_constant
|| frag_bit_offset (frag_now
, now_seg
) == -1)
1236 struct bit_info
*bi
= XNEW (struct bit_info
);
1241 p
= frag_var (rs_machine_dependent
,
1242 65536 * 2, 1, (relax_substateT
) 0,
1243 make_expr_symbol (&expn
), (offsetT
) 0,
1251 /* Reduce the required size by any bit offsets currently left over
1252 from a previous .space/.bes/.field directive. */
1253 bit_offset
= frag_now
->tc_frag_data
;
1254 if (bit_offset
!= 0 && bit_offset
< 16)
1256 int spare_bits
= bits_per_byte
- bit_offset
;
1258 if (spare_bits
>= expn
.X_add_number
)
1260 /* Don't have to do anything; sufficient bits have already been
1261 allocated; just point the label to the right place. */
1264 symbol_set_frag (label
, frag_now
);
1265 S_SET_VALUE (label
, frag_now_fix () - 1);
1268 frag_now
->tc_frag_data
+= expn
.X_add_number
;
1271 expn
.X_add_number
-= spare_bits
;
1272 /* Set the label to point to the first word allocated, which in this
1273 case is the previous word, which was only partially filled. */
1274 if (!bes
&& label
!= NULL
)
1276 symbol_set_frag (label
, frag_now
);
1277 S_SET_VALUE (label
, frag_now_fix () - 1);
1281 /* Convert bits to bytes/words and octets, rounding up. */
1282 words
= ((expn
.X_add_number
+ bits_per_byte
- 1) / bits_per_byte
);
1283 /* How many do we have left over? */
1284 bit_offset
= expn
.X_add_number
% bits_per_byte
;
1285 octets
= words
* OCTETS_PER_BYTE
;
1288 as_warn (_(".space/.bes repeat count is negative, ignored"));
1291 else if (octets
== 0)
1293 as_warn (_(".space/.bes repeat count is zero, ignored"));
1297 /* If we are in the absolute section, just bump the offset. */
1298 if (now_seg
== absolute_section
)
1300 abs_section_offset
+= words
;
1301 if (bes
&& label
!= NULL
)
1302 S_SET_VALUE (label
, abs_section_offset
- 1);
1303 frag_now
->tc_frag_data
= bit_offset
;
1308 p
= frag_var (rs_fill
, 1, 1,
1309 (relax_substateT
) 0, (symbolS
*) 0,
1310 (offsetT
) octets
, (char *) 0);
1312 /* Make note of how many bits of this word we've allocated so far. */
1313 frag_now
->tc_frag_data
= bit_offset
;
1315 /* .bes puts label at *last* word allocated. */
1316 if (bes
&& label
!= NULL
)
1318 symbol_set_frag (label
, frag_now
);
1319 S_SET_VALUE (label
, frag_now_fix () - 1);
1327 demand_empty_rest_of_line ();
1330 /* [symbol] .usect "section-name", size-in-words
1331 [, [blocking-flag] [, alignment-flag]]
1333 Uninitialized section.
1334 Non-zero blocking means that if the section would cross a page (128-word)
1335 boundary, it will be page-aligned.
1336 Non-zero alignment aligns on a longword boundary.
1338 Has no effect on the current section. */
1341 tic54x_usect (int x ATTRIBUTE_UNUSED
)
1348 int size
, blocking_flag
, alignment_flag
;
1350 subsegT current_subseg
;
1353 ILLEGAL_WITHIN_STRUCT ();
1355 current_seg
= now_seg
; /* Save current seg. */
1356 current_subseg
= now_subseg
; /* Save current subseg. */
1358 c
= get_symbol_name (§ion_name
); /* Get terminator. */
1359 name
= xstrdup (section_name
);
1360 c
= restore_line_pointer (c
);
1363 ++input_line_pointer
;
1366 as_bad (_("Missing size argument"));
1367 ignore_rest_of_line ();
1371 size
= get_absolute_expression ();
1373 /* Read a possibly present third argument (blocking flag). */
1374 if (*input_line_pointer
== ',')
1376 ++input_line_pointer
;
1377 if (*input_line_pointer
!= ',')
1378 blocking_flag
= get_absolute_expression ();
1382 /* Read a possibly present fourth argument (alignment flag). */
1383 if (*input_line_pointer
== ',')
1385 ++input_line_pointer
;
1386 alignment_flag
= get_absolute_expression ();
1392 blocking_flag
= alignment_flag
= 0;
1394 seg
= subseg_new (name
, 0);
1395 flags
= bfd_get_section_flags (stdoutput
, seg
) | SEC_ALLOC
;
1399 /* s_align eats end of line; restore it. */
1401 --input_line_pointer
;
1404 if (line_label
!= NULL
)
1406 S_SET_SEGMENT (line_label
, seg
);
1407 symbol_set_frag (line_label
, frag_now
);
1408 S_SET_VALUE (line_label
, frag_now_fix ());
1409 /* Set scl to label, since that's what TI does. */
1410 if (S_GET_STORAGE_CLASS (line_label
) != C_EXT
)
1411 S_SET_STORAGE_CLASS (line_label
, C_LABEL
);
1414 seg_info (seg
)->bss
= 1; /* Uninitialized data. */
1416 p
= frag_var (rs_fill
, 1, 1,
1417 (relax_substateT
) 0, (symbolS
*) line_label
,
1418 size
* OCTETS_PER_BYTE
, (char *) 0);
1422 flags
|= SEC_TIC54X_BLOCK
;
1424 if (!bfd_set_section_flags (stdoutput
, seg
, flags
))
1425 as_warn (_("Error setting flags for \"%s\": %s"), name
,
1426 bfd_errmsg (bfd_get_error ()));
1428 subseg_set (current_seg
, current_subseg
); /* Restore current seg. */
1429 demand_empty_rest_of_line ();
1432 static enum cpu_version
1433 lookup_version (const char *ver
)
1435 enum cpu_version version
= VNONE
;
1437 if (ver
[0] == '5' && ver
[1] == '4')
1439 if (strlen (ver
) == 3
1440 && (ver
[2] == '1' || ver
[2] == '2' || ver
[2] == '3'
1441 || ver
[2] == '5' || ver
[2] == '8' || ver
[2] == '9'))
1442 version
= ver
[2] - '0';
1443 else if (strlen (ver
) == 5
1444 && TOUPPER (ver
[3]) == 'L'
1445 && TOUPPER (ver
[4]) == 'P'
1446 && (ver
[2] == '5' || ver
[2] == '6'))
1447 version
= ver
[2] - '0' + 10;
1454 set_cpu (enum cpu_version version
)
1457 if (version
== V545LP
|| version
== V546LP
)
1459 symbolS
*symbolP
= symbol_new ("__allow_lp", absolute_section
,
1460 (valueT
) 1, &zero_address_frag
);
1461 SF_SET_LOCAL (symbolP
);
1462 symbol_table_insert (symbolP
);
1466 /* .version cpu-version
1467 cpu-version may be one of the following:
1477 This is for compatibility only. It currently has no affect on assembly. */
1478 static int cpu_needs_set
= 1;
1481 tic54x_version (int x ATTRIBUTE_UNUSED
)
1483 enum cpu_version version
= VNONE
;
1484 enum cpu_version old_version
= cpu
;
1488 ILLEGAL_WITHIN_STRUCT ();
1491 ver
= input_line_pointer
;
1492 while (!is_end_of_line
[(int) *input_line_pointer
])
1493 ++input_line_pointer
;
1494 c
= *input_line_pointer
;
1495 *input_line_pointer
= 0;
1497 version
= lookup_version (ver
);
1499 if (cpu
!= VNONE
&& cpu
!= version
)
1500 as_warn (_("CPU version has already been set"));
1502 if (version
== VNONE
)
1504 as_bad (_("Unrecognized version '%s'"), ver
);
1505 ignore_rest_of_line ();
1508 else if (assembly_begun
&& version
!= old_version
)
1510 as_bad (_("Changing of CPU version on the fly not supported"));
1511 ignore_rest_of_line ();
1517 *input_line_pointer
= c
;
1518 demand_empty_rest_of_line ();
1521 /* 'f' = float, 'x' = xfloat, 'd' = double, 'l' = ldouble. */
1524 tic54x_float_cons (int type
)
1526 if (current_stag
!= 0)
1527 tic54x_struct_field ('f');
1529 #ifdef md_flush_pending_output
1530 md_flush_pending_output ();
1533 /* Align to long word boundary (4 octets) unless it's ".xfloat". */
1536 frag_align (2, 0, 2);
1537 /* If there's a label, assign it to the first allocated word. */
1538 if (line_label
!= NULL
)
1540 symbol_set_frag (line_label
, frag_now
);
1541 S_SET_VALUE (line_label
, frag_now_fix ());
1548 /* The argument is capitalized if it should be zero-terminated
1549 's' is normal string with upper 8-bits zero-filled, 'p' is packed.
1550 Code copied from stringer, and slightly modified so that strings are packed
1551 and encoded into the correct octets. */
1554 tic54x_stringer (int type
)
1557 int append_zero
= type
== 'S' || type
== 'P';
1558 int packed
= type
== 'p' || type
== 'P';
1559 int last_char
= -1; /* Packed strings need two bytes at a time to encode. */
1561 if (current_stag
!= NULL
)
1563 tic54x_struct_field ('*');
1567 #ifdef md_flush_pending_output
1568 md_flush_pending_output ();
1571 c
= ','; /* Do loop. */
1575 switch (*input_line_pointer
)
1579 unsigned short value
= get_absolute_expression ();
1580 FRAG_APPEND_1_CHAR ( value
& 0xFF);
1581 FRAG_APPEND_1_CHAR ((value
>> 8) & 0xFF);
1585 ++input_line_pointer
; /* -> 1st char of string. */
1586 while (is_a_char (c
= next_char_of_string ()))
1590 FRAG_APPEND_1_CHAR (c
);
1591 FRAG_APPEND_1_CHAR (0);
1595 /* Packed strings are filled MS octet first. */
1596 if (last_char
== -1)
1600 FRAG_APPEND_1_CHAR (c
);
1601 FRAG_APPEND_1_CHAR (last_char
);
1608 if (packed
&& last_char
!= -1)
1610 FRAG_APPEND_1_CHAR (0);
1611 FRAG_APPEND_1_CHAR (last_char
);
1616 FRAG_APPEND_1_CHAR (0);
1617 FRAG_APPEND_1_CHAR (0);
1620 know (input_line_pointer
[-1] == '\"');
1624 c
= *input_line_pointer
;
1625 if (!is_end_of_line
[c
])
1626 ++input_line_pointer
;
1629 /* Finish up any leftover packed string. */
1630 if (packed
&& last_char
!= -1)
1632 FRAG_APPEND_1_CHAR (0);
1633 FRAG_APPEND_1_CHAR (last_char
);
1635 demand_empty_rest_of_line ();
1639 tic54x_p2align (int arg ATTRIBUTE_UNUSED
)
1641 as_bad (_("p2align not supported on this target"));
1645 tic54x_align_words (int arg
)
1647 /* Only ".align" with no argument is allowed within .struct/.union. */
1650 if (!is_end_of_line
[(int) *input_line_pointer
])
1653 as_warn (_("Argument to .even ignored"));
1655 count
= get_absolute_expression ();
1658 if (current_stag
!= NULL
&& arg
== 128)
1660 if (current_stag
->current_bitfield_offset
!= 0)
1662 current_stag
->current_bitfield_offset
= 0;
1663 ++abs_section_offset
;
1665 demand_empty_rest_of_line ();
1669 ILLEGAL_WITHIN_STRUCT ();
1671 s_align_bytes (count
<< 1);
1674 /* Initialize multiple-bit fields withing a single word of memory. */
1677 tic54x_field (int ignore ATTRIBUTE_UNUSED
)
1683 symbolS
*label
= line_label
;
1685 if (current_stag
!= NULL
)
1687 tic54x_struct_field ('.');
1691 input_line_pointer
= parse_expression (input_line_pointer
, &expn
);
1693 if (*input_line_pointer
== ',')
1695 ++input_line_pointer
;
1696 size
= get_absolute_expression ();
1697 if (size
< 1 || size
> 32)
1699 as_bad (_("Invalid field size, must be from 1 to 32"));
1700 ignore_rest_of_line ();
1705 /* Truncate values to the field width. */
1706 if (expn
.X_op
!= O_constant
)
1708 /* If the expression value is relocatable, the field size *must*
1712 as_bad (_("field size must be 16 when value is relocatable"));
1713 ignore_rest_of_line ();
1717 frag_now
->tc_frag_data
= 0;
1718 emit_expr (&expn
, 2);
1722 unsigned long fmask
= (size
== 32) ? 0xFFFFFFFF : (1ul << size
) - 1;
1724 value
= expn
.X_add_number
;
1725 expn
.X_add_number
&= fmask
;
1726 if (value
!= (valueT
) expn
.X_add_number
)
1727 as_warn (_("field value truncated"));
1728 value
= expn
.X_add_number
;
1729 /* Bits are stored MS first. */
1732 frag_now
->tc_frag_data
= 0;
1734 md_number_to_chars (p
, (value
>> (size
- 16)) & 0xFFFF, 2);
1739 int bit_offset
= frag_bit_offset (frag_now
, now_seg
);
1741 fragS
*alloc_frag
= bit_offset_frag (frag_now
, now_seg
);
1742 if (bit_offset
== -1)
1744 struct bit_info
*bi
= XNEW (struct bit_info
);
1745 /* We don't know the previous offset at this time, so store the
1746 info we need and figure it out later. */
1747 expressionS size_exp
;
1749 size_exp
.X_op
= O_constant
;
1750 size_exp
.X_add_number
= size
;
1752 bi
->type
= TYPE_FIELD
;
1754 p
= frag_var (rs_machine_dependent
,
1755 4, 1, (relax_substateT
) 0,
1756 make_expr_symbol (&size_exp
), (offsetT
) 0,
1760 else if (bit_offset
== 0 || bit_offset
+ size
> 16)
1762 /* Align a new field. */
1764 frag_now
->tc_frag_data
= 0;
1765 alloc_frag
= frag_now
;
1769 /* Put the new value entirely within the existing one. */
1770 p
= alloc_frag
== frag_now
?
1771 frag_now
->fr_literal
+ frag_now_fix_octets () - 2 :
1772 alloc_frag
->fr_literal
;
1775 symbol_set_frag (label
, alloc_frag
);
1776 if (alloc_frag
== frag_now
)
1777 S_SET_VALUE (label
, frag_now_fix () - 1);
1781 value
<<= 16 - alloc_frag
->tc_frag_data
- size
;
1783 /* OR in existing value. */
1784 if (alloc_frag
->tc_frag_data
)
1785 value
|= ((unsigned short) p
[1] << 8) | p
[0];
1786 md_number_to_chars (p
, value
, 2);
1787 alloc_frag
->tc_frag_data
+= size
;
1788 if (alloc_frag
->tc_frag_data
== 16)
1789 alloc_frag
->tc_frag_data
= 0;
1793 demand_empty_rest_of_line ();
1796 /* Ideally, we want to check SEC_LOAD and SEC_HAS_CONTENTS, but those aren't
1797 available yet. seg_info ()->bss is the next best thing. */
1800 tic54x_initialized_section (segT seg
)
1802 return !seg_info (seg
)->bss
;
1805 /* .clink ["section name"]
1807 Marks the section as conditionally linked (link only if contents are
1808 referenced elsewhere.
1809 Without a name, refers to the current initialized section.
1810 Name is required for uninitialized sections. */
1813 tic54x_clink (int ignored ATTRIBUTE_UNUSED
)
1817 ILLEGAL_WITHIN_STRUCT ();
1819 if (*input_line_pointer
== '\"')
1821 char *section_name
= ++input_line_pointer
;
1824 while (is_a_char (next_char_of_string ()))
1826 know (input_line_pointer
[-1] == '\"');
1827 input_line_pointer
[-1] = 0;
1828 name
= xstrdup (section_name
);
1830 seg
= bfd_get_section_by_name (stdoutput
, name
);
1833 as_bad (_("Unrecognized section '%s'"), section_name
);
1834 ignore_rest_of_line ();
1840 if (!tic54x_initialized_section (seg
))
1842 as_bad (_("Current section is unitialized, "
1843 "section name required for .clink"));
1844 ignore_rest_of_line ();
1849 seg
->flags
|= SEC_TIC54X_CLINK
;
1851 demand_empty_rest_of_line ();
1854 /* Change the default include directory to be the current source file's
1855 directory, instead of the current working directory. If DOT is non-zero,
1856 set to "." instead. */
1859 tic54x_set_default_include (int dot
)
1861 const char *dir
= ".";
1866 const char *curfile
;
1869 curfile
= as_where (&lineno
);
1870 dir
= xstrdup (curfile
);
1871 tmp
= strrchr (dir
, '/');
1879 if (include_dir_count
== 0)
1881 include_dirs
= XNEWVEC (const char *, 1);
1882 include_dir_count
= 1;
1884 include_dirs
[0] = dir
;
1885 if (len
> include_dir_maxlen
)
1886 include_dir_maxlen
= len
;
1888 else if (include_dirs
!= NULL
)
1889 include_dirs
[0] = ".";
1892 /* .include "filename" | filename
1893 .copy "filename" | filename
1895 FIXME 'include' file should be omitted from any output listing,
1896 'copy' should be included in any output listing
1897 FIXME -- prevent any included files from changing listing (compat only)
1898 FIXME -- need to include source file directory in search path; what's a
1899 good way to do this?
1901 Entering/exiting included/copied file clears all local labels. */
1904 tic54x_include (int ignored ATTRIBUTE_UNUSED
)
1906 char newblock
[] = " .newblock\n";
1911 ILLEGAL_WITHIN_STRUCT ();
1915 if (*input_line_pointer
== '"')
1917 filename
= demand_copy_C_string (&len
);
1918 demand_empty_rest_of_line ();
1922 filename
= input_line_pointer
;
1923 while (!is_end_of_line
[(int) *input_line_pointer
])
1924 ++input_line_pointer
;
1925 c
= *input_line_pointer
;
1926 *input_line_pointer
= '\0';
1927 filename
= xstrdup (filename
);
1928 *input_line_pointer
= c
;
1929 demand_empty_rest_of_line ();
1931 /* Insert a partial line with the filename (for the sake of s_include)
1933 The included file will be inserted before the newblock, so that the
1934 newblock is executed after the included file is processed. */
1935 input
= concat ("\"", filename
, "\"\n", newblock
, (char *) NULL
);
1936 input_scrub_insert_line (input
);
1938 tic54x_clear_local_labels (0);
1940 tic54x_set_default_include (0);
1946 tic54x_message (int type
)
1952 ILLEGAL_WITHIN_STRUCT ();
1954 if (*input_line_pointer
== '"')
1955 msg
= demand_copy_C_string (&len
);
1958 msg
= input_line_pointer
;
1959 while (!is_end_of_line
[(int) *input_line_pointer
])
1960 ++input_line_pointer
;
1961 c
= *input_line_pointer
;
1962 *input_line_pointer
= 0;
1963 msg
= xstrdup (msg
);
1964 *input_line_pointer
= c
;
1970 as_tsktsk ("%s", msg
);
1973 as_warn ("%s", msg
);
1980 demand_empty_rest_of_line ();
1984 Define a special symbol that refers to the loadtime address rather than the
1985 runtime address within the current section.
1987 This symbol gets a special storage class so that when it is resolved, it is
1988 resolved relative to the load address (lma) of the section rather than the
1989 run address (vma). */
1992 tic54x_label (int ignored ATTRIBUTE_UNUSED
)
1998 ILLEGAL_WITHIN_STRUCT ();
2000 c
= get_symbol_name (&name
);
2001 symbolP
= colon (name
);
2002 S_SET_STORAGE_CLASS (symbolP
, C_STATLAB
);
2004 (void) restore_line_pointer (c
);
2005 demand_empty_rest_of_line ();
2009 Install all memory-mapped register names into the symbol table as
2010 absolute local symbols. */
2013 tic54x_mmregs (int ignored ATTRIBUTE_UNUSED
)
2017 ILLEGAL_WITHIN_STRUCT ();
2019 for (sym
= (tic54x_symbol
*) mmregs
; sym
->name
; sym
++)
2021 symbolS
*symbolP
= symbol_new (sym
->name
, absolute_section
,
2022 (valueT
) sym
->value
, &zero_address_frag
);
2023 SF_SET_LOCAL (symbolP
);
2024 symbol_table_insert (symbolP
);
2029 Count defaults to 1024. */
2032 tic54x_loop (int count
)
2034 ILLEGAL_WITHIN_STRUCT ();
2037 if (!is_end_of_line
[(int) *input_line_pointer
])
2038 count
= get_absolute_expression ();
2040 do_repeat (count
, "LOOP", "ENDLOOP");
2043 /* Normally, endloop gets eaten by the preceding loop. */
2046 tic54x_endloop (int ignore ATTRIBUTE_UNUSED
)
2048 as_bad (_("ENDLOOP without corresponding LOOP"));
2049 ignore_rest_of_line ();
2052 /* .break [condition]. */
2055 tic54x_break (int ignore ATTRIBUTE_UNUSED
)
2059 ILLEGAL_WITHIN_STRUCT ();
2062 if (!is_end_of_line
[(int) *input_line_pointer
])
2063 cond
= get_absolute_expression ();
2066 end_repeat (substitution_line
? 1 : 0);
2070 set_address_mode (int mode
)
2073 if (mode
== far_mode
)
2075 symbolS
*symbolP
= symbol_new ("__allow_far", absolute_section
,
2076 (valueT
) 1, &zero_address_frag
);
2077 SF_SET_LOCAL (symbolP
);
2078 symbol_table_insert (symbolP
);
2082 static int address_mode_needs_set
= 1;
2085 tic54x_address_mode (int mode
)
2087 if (assembly_begun
&& amode
!= (unsigned) mode
)
2089 as_bad (_("Mixing of normal and extended addressing not supported"));
2090 ignore_rest_of_line ();
2093 if (mode
== far_mode
&& cpu
!= VNONE
&& cpu
!= V548
&& cpu
!= V549
)
2095 as_bad (_("Extended addressing not supported on the specified CPU"));
2096 ignore_rest_of_line ();
2100 set_address_mode (mode
);
2101 demand_empty_rest_of_line ();
2104 /* .sblock "section"|section [,...,"section"|section]
2105 Designate initialized sections for blocking. */
2108 tic54x_sblock (int ignore ATTRIBUTE_UNUSED
)
2112 ILLEGAL_WITHIN_STRUCT ();
2119 if (*input_line_pointer
== '"')
2123 name
= demand_copy_C_string (&len
);
2129 c
= get_symbol_name (§ion_name
);
2130 name
= xstrdup (section_name
);
2131 (void) restore_line_pointer (c
);
2134 seg
= bfd_get_section_by_name (stdoutput
, name
);
2137 as_bad (_("Unrecognized section '%s'"), name
);
2138 ignore_rest_of_line ();
2141 else if (!tic54x_initialized_section (seg
))
2143 as_bad (_(".sblock may be used for initialized sections only"));
2144 ignore_rest_of_line ();
2147 seg
->flags
|= SEC_TIC54X_BLOCK
;
2149 c
= *input_line_pointer
;
2150 if (!is_end_of_line
[(int) c
])
2151 ++input_line_pointer
;
2154 demand_empty_rest_of_line ();
2157 /* symbol .set value
2160 value must be defined externals; no forward-referencing allowed
2161 symbols assigned with .set/.equ may not be redefined. */
2164 tic54x_set (int ignore ATTRIBUTE_UNUSED
)
2169 ILLEGAL_WITHIN_STRUCT ();
2173 as_bad (_("Symbol missing for .set/.equ"));
2174 ignore_rest_of_line ();
2177 name
= xstrdup (S_GET_NAME (line_label
));
2179 if ((symbolP
= symbol_find (name
)) == NULL
2180 && (symbolP
= md_undefined_symbol (name
)) == NULL
)
2182 symbolP
= symbol_new (name
, absolute_section
, 0, &zero_address_frag
);
2183 S_SET_STORAGE_CLASS (symbolP
, C_STAT
);
2186 S_SET_DATA_TYPE (symbolP
, T_INT
);
2187 S_SET_SEGMENT (symbolP
, absolute_section
);
2188 symbol_table_insert (symbolP
);
2189 pseudo_set (symbolP
);
2190 demand_empty_rest_of_line ();
2195 List false conditional blocks. */
2198 tic54x_fclist (int show
)
2201 listing
&= ~LISTING_NOCOND
;
2203 listing
|= LISTING_NOCOND
;
2204 demand_empty_rest_of_line ();
2208 tic54x_sslist (int show
)
2210 ILLEGAL_WITHIN_STRUCT ();
2212 listing_sslist
= show
;
2215 /* .var SYM[,...,SYMN]
2216 Define a substitution string to be local to a macro. */
2219 tic54x_var (int ignore ATTRIBUTE_UNUSED
)
2221 static char empty
[] = "";
2225 ILLEGAL_WITHIN_STRUCT ();
2227 if (macro_level
== 0)
2229 as_bad (_(".var may only be used within a macro definition"));
2230 ignore_rest_of_line ();
2235 if (!ISALPHA (*input_line_pointer
))
2237 as_bad (_("Substitution symbols must begin with a letter"));
2238 ignore_rest_of_line ();
2241 c
= get_symbol_name (&name
);
2242 /* .var symbols start out with a null string. */
2243 name
= xstrdup (name
);
2244 hash_insert (subsym_hash
[macro_level
], name
, empty
);
2245 c
= restore_line_pointer (c
);
2248 ++input_line_pointer
;
2249 if (is_end_of_line
[(int) *input_line_pointer
])
2250 c
= *input_line_pointer
;
2255 demand_empty_rest_of_line ();
2258 /* .mlib <macro library filename>
2260 Macro libraries are archived (standard AR-format) text macro definitions
2261 Expand the file and include it.
2263 FIXME need to try the source file directory as well. */
2266 tic54x_mlib (int ignore ATTRIBUTE_UNUSED
)
2273 ILLEGAL_WITHIN_STRUCT ();
2275 /* Parse the filename. */
2276 if (*input_line_pointer
== '"')
2278 if ((filename
= demand_copy_C_string (&len
)) == NULL
)
2285 while (!is_end_of_line
[(int) *input_line_pointer
]
2286 && !ISSPACE (*input_line_pointer
))
2288 obstack_1grow (¬es
, *input_line_pointer
);
2289 ++input_line_pointer
;
2292 obstack_1grow (¬es
, '\0');
2293 filename
= obstack_finish (¬es
);
2295 demand_empty_rest_of_line ();
2297 tic54x_set_default_include (0);
2298 path
= XNEWVEC (char, (unsigned long) len
+ include_dir_maxlen
+ 5);
2300 for (i
= 0; i
< include_dir_count
; i
++)
2304 strcpy (path
, include_dirs
[i
]);
2306 strcat (path
, filename
);
2307 if ((try = fopen (path
, "r")) != NULL
)
2314 if (i
>= include_dir_count
)
2320 /* FIXME: if path is found, malloc'd storage is not freed. Of course, this
2321 happens all over the place, and since the assembler doesn't usually keep
2322 running for a very long time, it really doesn't matter. */
2323 register_dependency (path
);
2325 /* Expand all archive entries to temporary files and include them. */
2326 abfd
= bfd_openr (path
, NULL
);
2329 as_bad (_("can't open macro library file '%s' for reading: %s"),
2330 path
, bfd_errmsg (bfd_get_error ()));
2331 ignore_rest_of_line ();
2334 if (!bfd_check_format (abfd
, bfd_archive
))
2336 as_bad (_("File '%s' not in macro archive format"), path
);
2337 ignore_rest_of_line ();
2341 /* Open each BFD as binary (it should be straight ASCII text). */
2342 for (mbfd
= bfd_openr_next_archived_file (abfd
, NULL
);
2343 mbfd
!= NULL
; mbfd
= bfd_openr_next_archived_file (abfd
, mbfd
))
2345 /* Get a size at least as big as the archive member. */
2346 bfd_size_type size
= bfd_get_size (mbfd
);
2347 char *buf
= XNEWVEC (char, size
);
2348 char *fname
= tmpnam (NULL
);
2351 /* We're not sure how big it is, but it will be smaller than "size". */
2352 size
= bfd_bread (buf
, size
, mbfd
);
2354 /* Write to a temporary file, then use s_include to include it
2356 ftmp
= fopen (fname
, "w+b");
2357 fwrite ((void *) buf
, size
, 1, ftmp
);
2358 if (size
== 0 || buf
[size
- 1] != '\n')
2359 fwrite ("\n", 1, 1, ftmp
);
2362 input_scrub_insert_file (fname
);
2367 const pseudo_typeS md_pseudo_table
[] =
2369 { "algebraic", s_ignore
, 0 },
2370 { "align" , tic54x_align_words
, 128 },
2371 { "ascii" , tic54x_stringer
, 'p' },
2372 { "asciz" , tic54x_stringer
, 'P' },
2373 { "even" , tic54x_align_words
, 2 },
2374 { "asg" , tic54x_asg
, 0 },
2375 { "eval" , tic54x_eval
, 0 },
2376 { "bss" , tic54x_bss
, 0 },
2377 { "byte" , tic54x_cons
, 'b' },
2378 { "ubyte" , tic54x_cons
, 'B' },
2379 { "char" , tic54x_cons
, 'c' },
2380 { "uchar" , tic54x_cons
, 'C' },
2381 { "clink" , tic54x_clink
, 0 },
2382 { "c_mode" , tic54x_address_mode
, c_mode
},
2383 { "copy" , tic54x_include
, 'c' },
2384 { "include" , tic54x_include
, 'i' },
2385 { "data" , tic54x_sect
, 'd' },
2386 { "double" , tic54x_float_cons
, 'd' },
2387 { "ldouble" , tic54x_float_cons
, 'l' },
2388 { "drlist" , s_ignore
, 0 },
2389 { "drnolist" , s_ignore
, 0 },
2390 { "emsg" , tic54x_message
, 'e' },
2391 { "mmsg" , tic54x_message
, 'm' },
2392 { "wmsg" , tic54x_message
, 'w' },
2393 { "far_mode" , tic54x_address_mode
, far_mode
},
2394 { "fclist" , tic54x_fclist
, 1 },
2395 { "fcnolist" , tic54x_fclist
, 0 },
2396 { "field" , tic54x_field
, -1 },
2397 { "float" , tic54x_float_cons
, 'f' },
2398 { "xfloat" , tic54x_float_cons
, 'x' },
2399 { "global" , tic54x_global
, 'g' },
2400 { "def" , tic54x_global
, 'd' },
2401 { "ref" , tic54x_global
, 'r' },
2402 { "half" , tic54x_cons
, 'h' },
2403 { "uhalf" , tic54x_cons
, 'H' },
2404 { "short" , tic54x_cons
, 's' },
2405 { "ushort" , tic54x_cons
, 'S' },
2406 { "if" , s_if
, (int) O_ne
},
2407 { "elseif" , s_elseif
, (int) O_ne
},
2408 { "else" , s_else
, 0 },
2409 { "endif" , s_endif
, 0 },
2410 { "int" , tic54x_cons
, 'i' },
2411 { "uint" , tic54x_cons
, 'I' },
2412 { "word" , tic54x_cons
, 'w' },
2413 { "uword" , tic54x_cons
, 'W' },
2414 { "label" , tic54x_label
, 0 }, /* Loadtime
2416 { "length" , s_ignore
, 0 },
2417 { "width" , s_ignore
, 0 },
2418 { "long" , tic54x_cons
, 'l' },
2419 { "ulong" , tic54x_cons
, 'L' },
2420 { "xlong" , tic54x_cons
, 'x' },
2421 { "loop" , tic54x_loop
, 1024 },
2422 { "break" , tic54x_break
, 0 },
2423 { "endloop" , tic54x_endloop
, 0 },
2424 { "mlib" , tic54x_mlib
, 0 },
2425 { "mlist" , s_ignore
, 0 },
2426 { "mnolist" , s_ignore
, 0 },
2427 { "mmregs" , tic54x_mmregs
, 0 },
2428 { "newblock" , tic54x_clear_local_labels
, 0 },
2429 { "option" , s_ignore
, 0 },
2430 { "p2align" , tic54x_p2align
, 0 },
2431 { "sblock" , tic54x_sblock
, 0 },
2432 { "sect" , tic54x_sect
, '*' },
2433 { "set" , tic54x_set
, 0 },
2434 { "equ" , tic54x_set
, 0 },
2435 { "space" , tic54x_space
, 0 },
2436 { "bes" , tic54x_space
, 1 },
2437 { "sslist" , tic54x_sslist
, 1 },
2438 { "ssnolist" , tic54x_sslist
, 0 },
2439 { "string" , tic54x_stringer
, 's' },
2440 { "pstring" , tic54x_stringer
, 'p' },
2441 { "struct" , tic54x_struct
, 0 },
2442 { "tag" , tic54x_tag
, 0 },
2443 { "endstruct", tic54x_endstruct
, 0 },
2444 { "tab" , s_ignore
, 0 },
2445 { "text" , tic54x_sect
, 't' },
2446 { "union" , tic54x_struct
, 1 },
2447 { "endunion" , tic54x_endstruct
, 1 },
2448 { "usect" , tic54x_usect
, 0 },
2449 { "var" , tic54x_var
, 0 },
2450 { "version" , tic54x_version
, 0 },
2455 md_parse_option (int c
, const char *arg
)
2461 case OPTION_COFF_VERSION
:
2463 int version
= atoi (arg
);
2465 if (version
!= 0 && version
!= 1 && version
!= 2)
2466 as_fatal (_("Bad COFF version '%s'"), arg
);
2467 /* FIXME -- not yet implemented. */
2470 case OPTION_CPU_VERSION
:
2472 cpu
= lookup_version (arg
);
2475 as_fatal (_("Bad CPU version '%s'"), arg
);
2478 case OPTION_ADDRESS_MODE
:
2480 address_mode_needs_set
= 1;
2482 case OPTION_STDERR_TO_FILE
:
2484 const char *filename
= arg
;
2485 FILE *fp
= fopen (filename
, "w+");
2488 as_fatal (_("Can't redirect stderr to the file '%s'"), filename
);
2490 if ((fp
= freopen (filename
, "w+", stderr
)) == NULL
)
2491 as_fatal (_("Can't redirect stderr to the file '%s'"), filename
);
2499 /* Create a "local" substitution string hash table for a new macro level
2500 Some docs imply that macros have to use .newblock in order to be able
2501 to re-use a local label. We effectively do an automatic .newblock by
2502 deleting the local label hash between macro invocations. */
2505 tic54x_macro_start (void)
2508 subsym_hash
[macro_level
] = hash_new ();
2509 local_label_hash
[macro_level
] = hash_new ();
2513 tic54x_macro_info (const macro_entry
*macro
)
2515 const formal_entry
*entry
;
2517 /* Put the formal args into the substitution symbol table. */
2518 for (entry
= macro
->formals
; entry
; entry
= entry
->next
)
2520 char *name
= xstrndup (entry
->name
.ptr
, entry
->name
.len
);
2521 char *value
= xstrndup (entry
->actual
.ptr
, entry
->actual
.len
);
2523 name
[entry
->name
.len
] = '\0';
2524 value
[entry
->actual
.len
] = '\0';
2525 hash_insert (subsym_hash
[macro_level
], name
, value
);
2529 /* Get rid of this macro's .var's, arguments, and local labels. */
2532 tic54x_macro_end (void)
2534 hash_die (subsym_hash
[macro_level
]);
2535 subsym_hash
[macro_level
] = NULL
;
2536 hash_die (local_label_hash
[macro_level
]);
2537 local_label_hash
[macro_level
] = NULL
;
2542 subsym_symlen (char *a
, char *ignore ATTRIBUTE_UNUSED
)
2547 /* Compare symbol A to string B. */
2550 subsym_symcmp (char *a
, char *b
)
2552 return strcmp (a
, b
);
2555 /* Return the index of the first occurrence of B in A, or zero if none
2556 assumes b is an integer char value as a string. Index is one-based. */
2559 subsym_firstch (char *a
, char *b
)
2562 char *tmp
= strchr (a
, val
);
2564 return tmp
? tmp
- a
+ 1 : 0;
2567 /* Similar to firstch, but returns index of last occurrence of B in A. */
2570 subsym_lastch (char *a
, char *b
)
2573 char *tmp
= strrchr (a
, val
);
2575 return tmp
? tmp
- a
+ 1 : 0;
2578 /* Returns 1 if string A is defined in the symbol table (NOT the substitution
2582 subsym_isdefed (char *a
, char *ignore ATTRIBUTE_UNUSED
)
2584 symbolS
*symbolP
= symbol_find (a
);
2586 return symbolP
!= NULL
;
2589 /* Assign first member of comma-separated list B (e.g. "1,2,3") to the symbol
2590 A, or zero if B is a null string. Both arguments *must* be substitution
2591 symbols, unsubstituted. */
2594 subsym_ismember (char *sym
, char *list
)
2596 char *elem
, *ptr
, *listv
;
2601 listv
= subsym_lookup (list
, macro_level
);
2604 as_bad (_("Undefined substitution symbol '%s'"), list
);
2605 ignore_rest_of_line ();
2609 ptr
= elem
= xstrdup (listv
);
2610 while (*ptr
&& *ptr
!= ',')
2614 subsym_create_or_replace (sym
, elem
);
2616 /* Reassign the list. */
2617 subsym_create_or_replace (list
, ptr
);
2619 /* Assume this value, docs aren't clear. */
2623 /* Return zero if not a constant; otherwise:
2631 subsym_iscons (char *a
, char *ignore ATTRIBUTE_UNUSED
)
2635 parse_expression (a
, &expn
);
2637 if (expn
.X_op
== O_constant
)
2639 int len
= strlen (a
);
2641 switch (TOUPPER (a
[len
- 1]))
2654 /* No suffix; either octal, hex, or decimal. */
2655 if (*a
== '0' && len
> 1)
2657 if (TOUPPER (a
[1]) == 'X')
2667 /* Return 1 if A is a valid symbol name. Expects string input. */
2670 subsym_isname (char *a
, char *ignore ATTRIBUTE_UNUSED
)
2672 if (!is_name_beginner (*a
))
2676 if (!is_part_of_name (*a
))
2683 /* Return whether the string is a register; accepts ar0-7, unless .mmregs has
2684 been seen; if so, recognize any memory-mapped register.
2685 Note this does not recognize "A" or "B" accumulators. */
2688 subsym_isreg (char *a
, char *ignore ATTRIBUTE_UNUSED
)
2690 if (hash_find (reg_hash
, a
))
2692 if (hash_find (mmreg_hash
, a
))
2697 /* Return the structure size, given the stag. */
2700 subsym_structsz (char *name
, char *ignore ATTRIBUTE_UNUSED
)
2702 struct stag
*stag
= (struct stag
*) hash_find (stag_hash
, name
);
2710 /* If anybody actually uses this, they can fix it :)
2711 FIXME I'm not sure what the "reference point" of a structure is. It might
2712 be either the initial offset given .struct, or it may be the offset of the
2713 structure within another structure, or it might be something else
2714 altogether. since the TI assembler doesn't seem to ever do anything but
2715 return zero, we punt and return zero. */
2718 subsym_structacc (char *stag_name ATTRIBUTE_UNUSED
,
2719 char *ignore ATTRIBUTE_UNUSED
)
2725 math_ceil (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2727 return (float) ceil (arg1
);
2731 math_cvi (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2737 math_floor (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2739 return (float) floor (arg1
);
2743 math_fmod (float arg1
, float arg2
)
2745 return (int) arg1
% (int) arg2
;
2749 math_int (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2751 return ((float) ((int) arg1
)) == arg1
;
2755 math_round (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2757 return arg1
> 0 ? (int) (arg1
+ 0.5) : (int) (arg1
- 0.5);
2761 math_sgn (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2763 return (arg1
< 0) ? -1 : (arg1
? 1 : 0);
2767 math_trunc (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2773 math_acos (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2775 return (float) acos (arg1
);
2779 math_asin (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2781 return (float) asin (arg1
);
2785 math_atan (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2787 return (float) atan (arg1
);
2791 math_atan2 (float arg1
, float arg2
)
2793 return (float) atan2 (arg1
, arg2
);
2797 math_cosh (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2799 return (float) cosh (arg1
);
2803 math_cos (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2805 return (float) cos (arg1
);
2809 math_cvf (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2811 return (float) arg1
;
2815 math_exp (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2817 return (float) exp (arg1
);
2821 math_fabs (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2823 return (float) fabs (arg1
);
2826 /* expr1 * 2^expr2. */
2829 math_ldexp (float arg1
, float arg2
)
2831 return arg1
* (float) pow (2.0, arg2
);
2835 math_log10 (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2837 return (float) log10 (arg1
);
2841 math_log (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2843 return (float) log (arg1
);
2847 math_max (float arg1
, float arg2
)
2849 return (arg1
> arg2
) ? arg1
: arg2
;
2853 math_min (float arg1
, float arg2
)
2855 return (arg1
< arg2
) ? arg1
: arg2
;
2859 math_pow (float arg1
, float arg2
)
2861 return (float) pow (arg1
, arg2
);
2865 math_sin (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2867 return (float) sin (arg1
);
2871 math_sinh (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2873 return (float) sinh (arg1
);
2877 math_sqrt (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2879 return (float) sqrt (arg1
);
2883 math_tan (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2885 return (float) tan (arg1
);
2889 math_tanh (float arg1
, float ignore ATTRIBUTE_UNUSED
)
2891 return (float) tanh (arg1
);
2894 /* Built-in substitution symbol functions and math functions. */
2898 int (*proc
) (char *, char *);
2900 } subsym_proc_entry
;
2902 static const subsym_proc_entry subsym_procs
[] =
2904 /* Assembler built-in string substitution functions. */
2905 { "$symlen", subsym_symlen
, 1, },
2906 { "$symcmp", subsym_symcmp
, 2, },
2907 { "$firstch", subsym_firstch
, 2, },
2908 { "$lastch", subsym_lastch
, 2, },
2909 { "$isdefed", subsym_isdefed
, 1, },
2910 { "$ismember", subsym_ismember
, 2, },
2911 { "$iscons", subsym_iscons
, 1, },
2912 { "$isname", subsym_isname
, 1, },
2913 { "$isreg", subsym_isreg
, 1, },
2914 { "$structsz", subsym_structsz
, 1, },
2915 { "$structacc", subsym_structacc
, 1, },
2922 float (*proc
) (float, float);
2927 static const math_proc_entry math_procs
[] =
2929 /* Integer-returning built-in math functions. */
2930 { "$cvi", math_cvi
, 1, 1 },
2931 { "$int", math_int
, 1, 1 },
2932 { "$sgn", math_sgn
, 1, 1 },
2934 /* Float-returning built-in math functions. */
2935 { "$acos", math_acos
, 1, 0 },
2936 { "$asin", math_asin
, 1, 0 },
2937 { "$atan", math_atan
, 1, 0 },
2938 { "$atan2", math_atan2
, 2, 0 },
2939 { "$ceil", math_ceil
, 1, 0 },
2940 { "$cosh", math_cosh
, 1, 0 },
2941 { "$cos", math_cos
, 1, 0 },
2942 { "$cvf", math_cvf
, 1, 0 },
2943 { "$exp", math_exp
, 1, 0 },
2944 { "$fabs", math_fabs
, 1, 0 },
2945 { "$floor", math_floor
, 1, 0 },
2946 { "$fmod", math_fmod
, 2, 0 },
2947 { "$ldexp", math_ldexp
, 2, 0 },
2948 { "$log10", math_log10
, 1, 0 },
2949 { "$log", math_log
, 1, 0 },
2950 { "$max", math_max
, 2, 0 },
2951 { "$min", math_min
, 2, 0 },
2952 { "$pow", math_pow
, 2, 0 },
2953 { "$round", math_round
, 1, 0 },
2954 { "$sin", math_sin
, 1, 0 },
2955 { "$sinh", math_sinh
, 1, 0 },
2956 { "$sqrt", math_sqrt
, 1, 0 },
2957 { "$tan", math_tan
, 1, 0 },
2958 { "$tanh", math_tanh
, 1, 0 },
2959 { "$trunc", math_trunc
, 1, 0 },
2960 { NULL
, NULL
, 0, 0 },
2968 const subsym_proc_entry
*subsym_proc
;
2969 const math_proc_entry
*math_proc
;
2970 const char *hash_err
;
2972 char *TIC54X_DIR
= getenv ("TIC54X_DIR");
2973 char *A_DIR
= TIC54X_DIR
? TIC54X_DIR
: getenv ("A_DIR");
2977 /* Look for A_DIR and add it to the include list. */
2980 char *tmp
= xstrdup (A_DIR
);
2984 char *next
= strchr (tmp
, ';');
2988 add_include_dir (tmp
);
2991 while (tmp
!= NULL
);
2994 op_hash
= hash_new ();
2995 for (tm
= (insn_template
*) tic54x_optab
; tm
->name
; tm
++)
2997 if (hash_find (op_hash
, tm
->name
))
2999 hash_err
= hash_insert (op_hash
, tm
->name
, (char *) tm
);
3001 as_fatal ("Internal Error: Can't hash %s: %s",
3002 tm
->name
, hash_err
);
3004 parop_hash
= hash_new ();
3005 for (tm
= (insn_template
*) tic54x_paroptab
; tm
->name
; tm
++)
3007 if (hash_find (parop_hash
, tm
->name
))
3009 hash_err
= hash_insert (parop_hash
, tm
->name
, (char *) tm
);
3011 as_fatal ("Internal Error: Can't hash %s: %s",
3012 tm
->name
, hash_err
);
3014 reg_hash
= hash_new ();
3015 for (sym
= (tic54x_symbol
*) regs
; sym
->name
; sym
++)
3017 /* Add basic registers to the symbol table. */
3018 symbolS
*symbolP
= symbol_new (sym
->name
, absolute_section
,
3019 (valueT
) sym
->value
, &zero_address_frag
);
3020 SF_SET_LOCAL (symbolP
);
3021 symbol_table_insert (symbolP
);
3022 hash_err
= hash_insert (reg_hash
, sym
->name
, (char *) sym
);
3024 for (sym
= (tic54x_symbol
*) mmregs
; sym
->name
; sym
++)
3025 hash_err
= hash_insert (reg_hash
, sym
->name
, (char *) sym
);
3026 mmreg_hash
= hash_new ();
3027 for (sym
= (tic54x_symbol
*) mmregs
; sym
->name
; sym
++)
3028 hash_err
= hash_insert (mmreg_hash
, sym
->name
, (char *) sym
);
3030 cc_hash
= hash_new ();
3031 for (sym
= (tic54x_symbol
*) condition_codes
; sym
->name
; sym
++)
3032 hash_err
= hash_insert (cc_hash
, sym
->name
, (char *) sym
);
3034 cc2_hash
= hash_new ();
3035 for (sym
= (tic54x_symbol
*) cc2_codes
; sym
->name
; sym
++)
3036 hash_err
= hash_insert (cc2_hash
, sym
->name
, (char *) sym
);
3038 cc3_hash
= hash_new ();
3039 for (sym
= (tic54x_symbol
*) cc3_codes
; sym
->name
; sym
++)
3040 hash_err
= hash_insert (cc3_hash
, sym
->name
, (char *) sym
);
3042 sbit_hash
= hash_new ();
3043 for (sym
= (tic54x_symbol
*) status_bits
; sym
->name
; sym
++)
3044 hash_err
= hash_insert (sbit_hash
, sym
->name
, (char *) sym
);
3046 misc_symbol_hash
= hash_new ();
3047 for (symname
= (char **) misc_symbols
; *symname
; symname
++)
3048 hash_err
= hash_insert (misc_symbol_hash
, *symname
, *symname
);
3050 /* Only the base substitution table and local label table are initialized;
3051 the others (for local macro substitution) get instantiated as needed. */
3052 local_label_hash
[0] = hash_new ();
3053 subsym_hash
[0] = hash_new ();
3054 for (subsym_proc
= subsym_procs
; subsym_proc
->name
; subsym_proc
++)
3055 hash_err
= hash_insert (subsym_hash
[0], subsym_proc
->name
,
3056 (char *) subsym_proc
);
3058 math_hash
= hash_new ();
3059 for (math_proc
= math_procs
; math_proc
->name
; math_proc
++)
3061 /* Insert into the main subsym hash for recognition; insert into
3062 the math hash to actually store information. */
3063 hash_err
= hash_insert (subsym_hash
[0], math_proc
->name
,
3064 (char *) math_proc
);
3065 hash_err
= hash_insert (math_hash
, math_proc
->name
,
3066 (char *) math_proc
);
3068 subsym_recurse_hash
= hash_new ();
3069 stag_hash
= hash_new ();
3073 is_accumulator (struct opstruct
*operand
)
3075 return strcasecmp (operand
->buf
, "a") == 0
3076 || strcasecmp (operand
->buf
, "b") == 0;
3079 /* Return the number of operands found, or -1 on error, copying the
3080 operands into the given array and the accompanying expressions into
3084 get_operands (struct opstruct operands
[], char *line
)
3088 int expecting_operand
= 0;
3091 while (numexp
< MAX_OPERANDS
&& !is_end_of_line
[(int) *lptr
])
3093 int paren_not_balanced
= 0;
3094 char *op_start
, *op_end
;
3096 while (*lptr
&& ISSPACE (*lptr
))
3099 while (paren_not_balanced
|| *lptr
!= ',')
3103 if (paren_not_balanced
)
3105 as_bad (_("Unbalanced parenthesis in operand %d"), numexp
);
3112 ++paren_not_balanced
;
3113 else if (*lptr
== ')')
3114 --paren_not_balanced
;
3118 if (op_end
!= op_start
)
3120 int len
= op_end
- op_start
;
3122 strncpy (operands
[numexp
].buf
, op_start
, len
);
3123 operands
[numexp
].buf
[len
] = 0;
3124 /* Trim trailing spaces; while the preprocessor gets rid of most,
3125 there are weird usage patterns that can introduce them
3126 (i.e. using strings for macro args). */
3127 while (len
> 0 && ISSPACE (operands
[numexp
].buf
[len
- 1]))
3128 operands
[numexp
].buf
[--len
] = 0;
3134 if (expecting_operand
|| *lptr
== ',')
3136 as_bad (_("Expecting operand after ','"));
3142 if (*++lptr
== '\0')
3144 as_bad (_("Expecting operand after ','"));
3147 expecting_operand
= 1;
3151 while (*lptr
&& ISSPACE (*lptr
++))
3153 if (!is_end_of_line
[(int) *lptr
])
3155 as_bad (_("Extra junk on line"));
3159 /* OK, now parse them into expressions. */
3160 for (i
= 0; i
< numexp
; i
++)
3162 memset (&operands
[i
].exp
, 0, sizeof (operands
[i
].exp
));
3163 if (operands
[i
].buf
[0] == '#')
3166 parse_expression (operands
[i
].buf
+ 1, &operands
[i
].exp
);
3168 else if (operands
[i
].buf
[0] == '@')
3170 /* Direct notation. */
3171 parse_expression (operands
[i
].buf
+ 1, &operands
[i
].exp
);
3173 else if (operands
[i
].buf
[0] == '*')
3176 char *paren
= strchr (operands
[i
].buf
, '(');
3178 /* Allow immediate syntax in the inner expression. */
3179 if (paren
&& paren
[1] == '#')
3182 /* Pull out the lk expression or SP offset, if present. */
3185 int len
= strlen (paren
);
3186 char *end
= paren
+ len
;
3189 while (end
[-1] != ')')
3192 as_bad (_("Badly formed address expression"));
3197 parse_expression (paren
, &operands
[i
].exp
);
3201 operands
[i
].exp
.X_op
= O_absent
;
3204 parse_expression (operands
[i
].buf
, &operands
[i
].exp
);
3210 /* Predicates for different operand types. */
3213 is_immediate (struct opstruct
*operand
)
3215 return *operand
->buf
== '#';
3218 /* This is distinguished from immediate because some numbers must be constants
3219 and must *not* have the '#' prefix. */
3222 is_absolute (struct opstruct
*operand
)
3224 return operand
->exp
.X_op
== O_constant
&& !is_immediate (operand
);
3227 /* Is this an indirect operand? */
3230 is_indirect (struct opstruct
*operand
)
3232 return operand
->buf
[0] == '*';
3235 /* Is this a valid dual-memory operand? */
3238 is_dual (struct opstruct
*operand
)
3240 if (is_indirect (operand
) && strncasecmp (operand
->buf
, "*ar", 3) == 0)
3242 char *tmp
= operand
->buf
+ 3;
3247 /* Only allow *ARx, *ARx-, *ARx+, or *ARx+0%. */
3248 valid_mod
= *tmp
== '\0' ||
3249 strcasecmp (tmp
, "-") == 0 ||
3250 strcasecmp (tmp
, "+") == 0 ||
3251 strcasecmp (tmp
, "+0%") == 0;
3252 return arf
>= 2 && arf
<= 5 && valid_mod
;
3258 is_mmreg (struct opstruct
*operand
)
3260 return (is_absolute (operand
)
3261 || is_immediate (operand
)
3262 || hash_find (mmreg_hash
, operand
->buf
) != 0);
3266 is_type (struct opstruct
*operand
, enum optype type
)
3271 return operand
->buf
[0] == 0;
3274 return is_dual (operand
);
3276 return is_indirect (operand
);
3278 /* This one *must* be immediate. */
3279 return is_immediate (operand
);
3288 /* Address may be a numeric, indirect, or an expression. */
3289 return !is_immediate (operand
);
3292 return is_mmreg (operand
);
3297 return is_accumulator (operand
);
3299 return is_accumulator (operand
) && TOUPPER (operand
->buf
[0]) == 'B';
3301 return is_accumulator (operand
) && TOUPPER (operand
->buf
[0]) == 'A';
3303 return strncasecmp ("ar", operand
->buf
, 2) == 0
3304 && ISDIGIT (operand
->buf
[2]);
3306 return hash_find (sbit_hash
, operand
->buf
) != 0 || is_absolute (operand
);
3308 return hash_find (cc_hash
, operand
->buf
) != 0;
3310 return hash_find (cc2_hash
, operand
->buf
) != 0;
3312 return hash_find (cc3_hash
, operand
->buf
) != 0
3313 || is_immediate (operand
) || is_absolute (operand
);
3315 return (is_immediate (operand
) || is_absolute (operand
))
3316 && operand
->exp
.X_add_number
== 16;
3318 /* Allow st0 or st1 instead of a numeric. */
3319 return is_absolute (operand
) || is_immediate (operand
) ||
3320 strcasecmp ("st0", operand
->buf
) == 0 ||
3321 strcasecmp ("st1", operand
->buf
) == 0;
3324 return is_absolute (operand
) || is_immediate (operand
);
3326 return (is_immediate (operand
) || is_absolute (operand
))
3327 && operand
->exp
.X_add_number
>= 0 && operand
->exp
.X_add_number
< 16;
3329 /* Let this one catch out-of-range values. */
3330 return (is_immediate (operand
) || is_absolute (operand
))
3331 && operand
->exp
.X_add_number
!= 16;
3335 return is_absolute (operand
) || is_immediate (operand
);
3337 return is_immediate (operand
)
3338 && operand
->exp
.X_op
== O_constant
3339 && operand
->exp
.X_add_number
>= 0
3340 && operand
->exp
.X_add_number
< 256;
3343 /* Allow anything; assumes opcodes are ordered with Smem operands
3349 /* Just make sure it's an integer; check range later. */
3350 return is_immediate (operand
);
3352 return strcasecmp ("t", operand
->buf
) == 0 ||
3353 strcasecmp ("treg", operand
->buf
) == 0;
3355 return strcasecmp ("ts", operand
->buf
) == 0;
3357 return strcasecmp ("asm", operand
->buf
) == 0;
3359 return strcasecmp ("trn", operand
->buf
) == 0;
3361 return strcasecmp ("dp", operand
->buf
) == 0;
3363 return strcasecmp ("arp", operand
->buf
) == 0;
3370 operands_match (tic54x_insn
*insn
,
3371 struct opstruct
*operands
,
3373 const enum optype
*refoptype
,
3377 int op
= 0, refop
= 0;
3379 if (opcount
== 0 && minops
== 0)
3382 while (op
<= maxops
&& refop
<= maxops
)
3384 while (!is_type (&operands
[op
], OPTYPE (refoptype
[refop
])))
3386 /* Skip an optional template operand if it doesn't agree
3387 with the current operand. */
3388 if (refoptype
[refop
] & OPT
)
3399 /* Save the actual operand type for later use. */
3400 operands
[op
].type
= OPTYPE (refoptype
[refop
]);
3403 /* Have we matched them all yet? */
3408 /* If a later operand is *not* optional, no match. */
3409 if ((refoptype
[refop
] & OPT
) == 0)
3411 /* Flag any implicit default OP_DST operands so we know to add
3412 them explicitly when encoding the operand later. */
3413 if (OPTYPE (refoptype
[refop
]) == OP_DST
)
3414 insn
->using_default_dst
= 1;
3426 /* 16-bit direct memory address
3427 Explicit dmad operands are always in last word of insn (usually second
3428 word, but bumped to third if lk addressing is used)
3430 We allow *(dmad) notation because the TI assembler allows it.
3433 0 for 16-bit addresses
3434 1 for full 23-bit addresses
3435 2 for the upper 7 bits of a 23-bit address (LDX). */
3438 encode_dmad (tic54x_insn
*insn
, struct opstruct
*operand
, int xpc_code
)
3440 int op
= 1 + insn
->is_lkaddr
;
3442 /* Only allow *(dmad) expressions; all others are invalid. */
3443 if (is_indirect (operand
) && operand
->buf
[strlen (operand
->buf
) - 1] != ')')
3445 as_bad (_("Invalid dmad syntax '%s'"), operand
->buf
);
3449 insn
->opcode
[op
].addr_expr
= operand
->exp
;
3451 if (insn
->opcode
[op
].addr_expr
.X_op
== O_constant
)
3453 valueT value
= insn
->opcode
[op
].addr_expr
.X_add_number
;
3457 insn
->opcode
[0].word
&= 0xFF80;
3458 insn
->opcode
[0].word
|= (value
>> 16) & 0x7F;
3459 insn
->opcode
[1].word
= value
& 0xFFFF;
3461 else if (xpc_code
== 2)
3462 insn
->opcode
[op
].word
= (value
>> 16) & 0xFFFF;
3464 insn
->opcode
[op
].word
= value
;
3468 /* Do the fixup later; just store the expression. */
3469 insn
->opcode
[op
].word
= 0;
3470 insn
->opcode
[op
].r_nchars
= 2;
3472 if (amode
== c_mode
)
3473 insn
->opcode
[op
].r_type
= BFD_RELOC_TIC54X_16_OF_23
;
3474 else if (xpc_code
== 1)
3476 /* This relocation spans two words, so adjust accordingly. */
3477 insn
->opcode
[0].addr_expr
= operand
->exp
;
3478 insn
->opcode
[0].r_type
= BFD_RELOC_TIC54X_23
;
3479 insn
->opcode
[0].r_nchars
= 4;
3480 insn
->opcode
[0].unresolved
= 1;
3481 /* It's really 2 words, but we want to stop encoding after the
3482 first, since we must encode both words at once. */
3485 else if (xpc_code
== 2)
3486 insn
->opcode
[op
].r_type
= BFD_RELOC_TIC54X_MS7_OF_23
;
3488 insn
->opcode
[op
].r_type
= BFD_RELOC_TIC54X_16_OF_23
;
3490 insn
->opcode
[op
].unresolved
= 1;
3496 /* 7-bit direct address encoding. */
3499 encode_address (tic54x_insn
*insn
, struct opstruct
*operand
)
3501 /* Assumes that dma addresses are *always* in word 0 of the opcode. */
3502 insn
->opcode
[0].addr_expr
= operand
->exp
;
3504 if (operand
->exp
.X_op
== O_constant
)
3505 insn
->opcode
[0].word
|= (operand
->exp
.X_add_number
& 0x7F);
3508 if (operand
->exp
.X_op
== O_register
)
3509 as_bad (_("Use the .mmregs directive to use memory-mapped register names such as '%s'"), operand
->buf
);
3510 /* Do the fixup later; just store the expression. */
3511 insn
->opcode
[0].r_nchars
= 1;
3512 insn
->opcode
[0].r_type
= BFD_RELOC_TIC54X_PARTLS7
;
3513 insn
->opcode
[0].unresolved
= 1;
3520 encode_indirect (tic54x_insn
*insn
, struct opstruct
*operand
)
3525 if (insn
->is_lkaddr
)
3527 /* lk addresses always go in the second insn word. */
3528 mod
= ((TOUPPER (operand
->buf
[1]) == 'A') ? 12 :
3529 (operand
->buf
[1] == '(') ? 15 :
3530 (strchr (operand
->buf
, '%') != NULL
) ? 14 : 13);
3531 arf
= ((mod
== 12) ? operand
->buf
[3] - '0' :
3532 (mod
== 15) ? 0 : operand
->buf
[4] - '0');
3534 insn
->opcode
[1].addr_expr
= operand
->exp
;
3536 if (operand
->exp
.X_op
== O_constant
)
3537 insn
->opcode
[1].word
= operand
->exp
.X_add_number
;
3540 insn
->opcode
[1].word
= 0;
3541 insn
->opcode
[1].r_nchars
= 2;
3542 insn
->opcode
[1].r_type
= BFD_RELOC_TIC54X_16_OF_23
;
3543 insn
->opcode
[1].unresolved
= 1;
3546 else if (strncasecmp (operand
->buf
, "*sp (", 4) == 0)
3548 /* Stack offsets look the same as 7-bit direct addressing. */
3549 return encode_address (insn
, operand
);
3553 arf
= (TOUPPER (operand
->buf
[1]) == 'A' ?
3554 operand
->buf
[3] : operand
->buf
[4]) - '0';
3556 if (operand
->buf
[1] == '+')
3558 mod
= 3; /* *+ARx */
3559 if (insn
->tm
->flags
& FL_SMR
)
3560 as_warn (_("Address mode *+ARx is write-only. "
3561 "Results of reading are undefined."));
3563 else if (operand
->buf
[4] == '\0')
3565 else if (operand
->buf
[5] == '\0')
3566 mod
= (operand
->buf
[4] == '-' ? 1 : 2); /* *ARx+ / *ARx- */
3567 else if (operand
->buf
[6] == '\0')
3569 if (operand
->buf
[5] == '0')
3570 mod
= (operand
->buf
[4] == '-' ? 5 : 6); /* *ARx+0 / *ARx-0 */
3572 mod
= (operand
->buf
[4] == '-' ? 8 : 10);/* *ARx+% / *ARx-% */
3574 else if (TOUPPER (operand
->buf
[6]) == 'B')
3575 mod
= (operand
->buf
[4] == '-' ? 4 : 7); /* ARx+0B / *ARx-0B */
3576 else if (TOUPPER (operand
->buf
[6]) == '%')
3577 mod
= (operand
->buf
[4] == '-' ? 9 : 11); /* ARx+0% / *ARx - 0% */
3580 as_bad (_("Unrecognized indirect address format \"%s\""),
3586 insn
->opcode
[0].word
|= 0x80 | (mod
<< 3) | arf
;
3592 encode_integer (tic54x_insn
*insn
,
3593 struct opstruct
*operand
,
3597 unsigned short mask
)
3599 long parse
, integer
;
3601 insn
->opcode
[which
].addr_expr
= operand
->exp
;
3603 if (operand
->exp
.X_op
== O_constant
)
3605 parse
= operand
->exp
.X_add_number
;
3606 /* Hack -- fixup for 16-bit hex quantities that get converted positive
3607 instead of negative. */
3608 if ((parse
& 0x8000) && min
== -32768 && max
== 32767)
3609 integer
= (short) parse
;
3613 if (integer
>= min
&& integer
<= max
)
3615 insn
->opcode
[which
].word
|= (integer
& mask
);
3618 as_bad (_("Operand '%s' out of range (%d <= x <= %d)"),
3619 operand
->buf
, min
, max
);
3623 if (insn
->opcode
[which
].addr_expr
.X_op
== O_constant
)
3625 insn
->opcode
[which
].word
|=
3626 insn
->opcode
[which
].addr_expr
.X_add_number
& mask
;
3630 /* Do the fixup later; just store the expression. */
3631 bfd_reloc_code_real_type rtype
=
3632 (mask
== 0x1FF ? BFD_RELOC_TIC54X_PARTMS9
:
3633 mask
== 0xFFFF ? BFD_RELOC_TIC54X_16_OF_23
:
3634 mask
== 0x7F ? BFD_RELOC_TIC54X_PARTLS7
: BFD_RELOC_8
);
3635 int size
= (mask
== 0x1FF || mask
== 0xFFFF) ? 2 : 1;
3637 if (rtype
== BFD_RELOC_8
)
3638 as_bad (_("Error in relocation handling"));
3640 insn
->opcode
[which
].r_nchars
= size
;
3641 insn
->opcode
[which
].r_type
= rtype
;
3642 insn
->opcode
[which
].unresolved
= 1;
3652 encode_condition (tic54x_insn
*insn
, struct opstruct
*operand
)
3654 tic54x_symbol
*cc
= (tic54x_symbol
*) hash_find (cc_hash
, operand
->buf
);
3657 as_bad (_("Unrecognized condition code \"%s\""), operand
->buf
);
3660 #define CC_GROUP 0x40
3662 #define CATG_A1 0x07
3663 #define CATG_B1 0x30
3664 #define CATG_A2 0x30
3665 #define CATG_B2 0x0C
3666 #define CATG_C2 0x03
3667 /* Disallow group 1 conditions mixed with group 2 conditions
3668 if group 1, allow only one category A and one category B
3669 if group 2, allow only one each of category A, B, and C. */
3670 if (((insn
->opcode
[0].word
& 0xFF) != 0))
3672 if ((insn
->opcode
[0].word
& CC_GROUP
) != (cc
->value
& CC_GROUP
))
3674 as_bad (_("Condition \"%s\" does not match preceding group"),
3678 if (insn
->opcode
[0].word
& CC_GROUP
)
3680 if ((insn
->opcode
[0].word
& CC_ACC
) != (cc
->value
& CC_ACC
))
3682 as_bad (_("Condition \"%s\" uses a different accumulator from "
3683 "a preceding condition"),
3687 if ((insn
->opcode
[0].word
& CATG_A1
) && (cc
->value
& CATG_A1
))
3689 as_bad (_("Only one comparison conditional allowed"));
3692 if ((insn
->opcode
[0].word
& CATG_B1
) && (cc
->value
& CATG_B1
))
3694 as_bad (_("Only one overflow conditional allowed"));
3698 else if ( ((insn
->opcode
[0].word
& CATG_A2
) && (cc
->value
& CATG_A2
))
3699 || ((insn
->opcode
[0].word
& CATG_B2
) && (cc
->value
& CATG_B2
))
3700 || ((insn
->opcode
[0].word
& CATG_C2
) && (cc
->value
& CATG_C2
)))
3702 as_bad (_("Duplicate %s conditional"), operand
->buf
);
3707 insn
->opcode
[0].word
|= cc
->value
;
3712 encode_cc3 (tic54x_insn
*insn
, struct opstruct
*operand
)
3714 tic54x_symbol
*cc3
= (tic54x_symbol
*) hash_find (cc3_hash
, operand
->buf
);
3715 int value
= cc3
? cc3
->value
: operand
->exp
.X_add_number
<< 8;
3717 if ((value
& 0x0300) != value
)
3719 as_bad (_("Unrecognized condition code \"%s\""), operand
->buf
);
3722 insn
->opcode
[0].word
|= value
;
3727 encode_arx (tic54x_insn
*insn
, struct opstruct
*operand
)
3729 int arf
= strlen (operand
->buf
) >= 3 ? operand
->buf
[2] - '0' : -1;
3731 if (strncasecmp ("ar", operand
->buf
, 2) || arf
< 0 || arf
> 7)
3733 as_bad (_("Invalid auxiliary register (use AR0-AR7)"));
3736 insn
->opcode
[0].word
|= arf
;
3741 encode_cc2 (tic54x_insn
*insn
, struct opstruct
*operand
)
3743 tic54x_symbol
*cc2
= (tic54x_symbol
*) hash_find (cc2_hash
, operand
->buf
);
3747 as_bad (_("Unrecognized condition code \"%s\""), operand
->buf
);
3750 insn
->opcode
[0].word
|= cc2
->value
;
3755 encode_operand (tic54x_insn
*insn
, enum optype type
, struct opstruct
*operand
)
3757 int ext
= (insn
->tm
->flags
& FL_EXT
) != 0;
3759 if (type
== OP_MMR
&& operand
->exp
.X_op
!= O_constant
)
3761 /* Disallow long-constant addressing for memory-mapped addressing. */
3762 if (insn
->is_lkaddr
)
3764 as_bad (_("lk addressing modes are invalid for memory-mapped "
3765 "register addressing"));
3769 /* Warn about *+ARx when used with MMR operands. */
3770 if (strncasecmp (operand
->buf
, "*+ar", 4) == 0)
3772 as_warn (_("Address mode *+ARx is not allowed in memory-mapped "
3773 "register addressing. Resulting behavior is "
3783 /* 16-bit immediate value. */
3784 return encode_dmad (insn
, operand
, 0);
3786 if (TOUPPER (*operand
->buf
) == 'B')
3788 insn
->opcode
[ext
? (1 + insn
->is_lkaddr
) : 0].word
|= (1 << 9);
3789 if (insn
->using_default_dst
)
3790 insn
->opcode
[ext
? (1 + insn
->is_lkaddr
) : 0].word
|= (1 << 8);
3794 /* Make sure this agrees with the OP_DST operand. */
3795 if (!((TOUPPER (operand
->buf
[0]) == 'B') ^
3796 ((insn
->opcode
[0].word
& (1 << 8)) != 0)))
3798 as_bad (_("Destination accumulator for each part of this parallel "
3799 "instruction must be different"));
3805 if (TOUPPER (operand
->buf
[0]) == 'B')
3806 insn
->opcode
[ext
? (1 + insn
->is_lkaddr
) : 0].word
|= (1 << 8);
3811 int mod
= (operand
->buf
[4] == '\0' ? 0 : /* *arx */
3812 operand
->buf
[4] == '-' ? 1 : /* *arx- */
3813 operand
->buf
[5] == '\0' ? 2 : 3); /* *arx+, *arx+0% */
3814 int arf
= operand
->buf
[3] - '0' - 2;
3815 int code
= (mod
<< 2) | arf
;
3816 insn
->opcode
[0].word
|= (code
<< (type
== OP_Xmem
? 4 : 0));
3821 if (!is_indirect (operand
))
3822 return encode_address (insn
, operand
);
3825 return encode_indirect (insn
, operand
);
3827 return encode_dmad (insn
, operand
, 2);
3829 return encode_dmad (insn
, operand
, 1);
3832 return encode_dmad (insn
, operand
, 0);
3834 return encode_arx (insn
, operand
);
3839 int value
= operand
->exp
.X_add_number
;
3842 insn
->opcode
[0].word
|= value
;
3845 if (value
< 16 || value
> 24)
3847 as_bad (_("Memory mapped register \"%s\" out of range"),
3851 if (type
== OP_MMRX
)
3852 insn
->opcode
[0].word
|= (value
- 16) << 4;
3854 insn
->opcode
[0].word
|= (value
- 16);
3862 return encode_integer (insn
, operand
, ext
+ insn
->is_lkaddr
,
3865 return encode_integer (insn
, operand
, ext
+ insn
->is_lkaddr
,
3868 return encode_integer (insn
, operand
, 1 + insn
->is_lkaddr
,
3869 -32768, 32767, 0xFFFF);
3871 return encode_condition (insn
, operand
);
3873 return encode_cc2 (insn
, operand
);
3875 return encode_cc3 (insn
, operand
);
3877 return encode_integer (insn
, operand
, 0, 0, 15, 0xF);
3879 return encode_integer (insn
, operand
, 0, -128, 127, 0xFF);
3882 int value
= operand
->exp
.X_add_number
;
3884 if (value
< 1 || value
> 3)
3886 as_bad (_("Invalid operand (use 1, 2, or 3)"));
3889 code
= value
== 1 ? 0 : value
== 2 ? 0x2 : 0x1;
3890 insn
->opcode
[0].word
|= (code
<< 8);
3894 return encode_integer (insn
, operand
, 0, 0, 31, 0x1F);
3896 return encode_integer (insn
, operand
, 0, 0, 255, 0xFF);
3898 return encode_integer (insn
, operand
, 1 + insn
->is_lkaddr
,
3902 tic54x_symbol
*sbit
= (tic54x_symbol
*)
3903 hash_find (sbit_hash
, operand
->buf
);
3904 int value
= is_absolute (operand
) ?
3905 operand
->exp
.X_add_number
: (sbit
? sbit
->value
: -1);
3908 if (insn
->opcount
== 1)
3912 as_bad (_("A status register or status bit name is required"));
3915 /* Guess the register based on the status bit; "ovb" is the last
3916 status bit defined for st0. */
3917 if (sbit
> (tic54x_symbol
*) hash_find (sbit_hash
, "ovb"))
3922 as_bad (_("Unrecognized status bit \"%s\""), operand
->buf
);
3925 insn
->opcode
[0].word
|= value
;
3926 insn
->opcode
[0].word
|= (reg
<< 9);
3930 if (strcasecmp (operand
->buf
, "st0") == 0
3931 || strcasecmp (operand
->buf
, "st1") == 0)
3933 insn
->opcode
[0].word
|=
3934 ((unsigned short) (operand
->buf
[2] - '0')) << 9;
3937 else if (operand
->exp
.X_op
== O_constant
3938 && (operand
->exp
.X_add_number
== 0
3939 || operand
->exp
.X_add_number
== 1))
3941 insn
->opcode
[0].word
|=
3942 ((unsigned short) (operand
->exp
.X_add_number
)) << 9;
3945 as_bad (_("Invalid status register \"%s\""), operand
->buf
);
3948 return encode_integer (insn
, operand
, 0, -16, 15, 0x1F);
3950 return encode_integer (insn
, operand
, 0, 0, 7, 0x7);
3952 return encode_integer (insn
, operand
, 0, 0, 0x1FF, 0x1FF);
3954 if (operand
->exp
.X_add_number
!= 1
3955 && operand
->exp
.X_add_number
!= 2)
3957 as_bad (_("Operand \"%s\" out of range (use 1 or 2)"), operand
->buf
);
3960 insn
->opcode
[0].word
|= (operand
->exp
.X_add_number
- 1) << 9;
3969 /* No encoding necessary. */
3979 emit_insn (tic54x_insn
*insn
)
3982 flagword oldflags
= bfd_get_section_flags (stdoutput
, now_seg
);
3983 flagword flags
= oldflags
| SEC_CODE
;
3985 if (! bfd_set_section_flags (stdoutput
, now_seg
, flags
))
3986 as_warn (_("error setting flags for \"%s\": %s"),
3987 bfd_section_name (stdoutput
, now_seg
),
3988 bfd_errmsg (bfd_get_error ()));
3990 for (i
= 0; i
< insn
->words
; i
++)
3992 int size
= (insn
->opcode
[i
].unresolved
3993 && insn
->opcode
[i
].r_type
== BFD_RELOC_TIC54X_23
) ? 4 : 2;
3994 char *p
= frag_more (size
);
3997 md_number_to_chars (p
, (valueT
) insn
->opcode
[i
].word
, 2);
3999 md_number_to_chars (p
, (valueT
) insn
->opcode
[i
].word
<< 16, 4);
4001 if (insn
->opcode
[i
].unresolved
)
4002 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
,
4003 insn
->opcode
[i
].r_nchars
, &insn
->opcode
[i
].addr_expr
,
4004 FALSE
, insn
->opcode
[i
].r_type
);
4008 /* Convert the operand strings into appropriate opcode values
4009 return the total number of words used by the instruction. */
4012 build_insn (tic54x_insn
*insn
)
4016 /* Only non-parallel instructions support lk addressing. */
4017 if (!(insn
->tm
->flags
& FL_PAR
))
4019 for (i
= 0; i
< insn
->opcount
; i
++)
4021 if ((OPTYPE (insn
->operands
[i
].type
) == OP_Smem
4022 || OPTYPE (insn
->operands
[i
].type
) == OP_Lmem
4023 || OPTYPE (insn
->operands
[i
].type
) == OP_Sind
)
4024 && strchr (insn
->operands
[i
].buf
, '(')
4025 /* Don't mistake stack-relative addressing for lk addressing. */
4026 && strncasecmp (insn
->operands
[i
].buf
, "*sp (", 4) != 0)
4028 insn
->is_lkaddr
= 1;
4029 insn
->lkoperand
= i
;
4034 insn
->words
= insn
->tm
->words
+ insn
->is_lkaddr
;
4036 insn
->opcode
[0].word
= insn
->tm
->opcode
;
4037 if (insn
->tm
->flags
& FL_EXT
)
4038 insn
->opcode
[1 + insn
->is_lkaddr
].word
= insn
->tm
->opcode2
;
4040 for (i
= 0; i
< insn
->opcount
; i
++)
4042 enum optype type
= insn
->operands
[i
].type
;
4044 if (!encode_operand (insn
, type
, &insn
->operands
[i
]))
4047 if (insn
->tm
->flags
& FL_PAR
)
4048 for (i
= 0; i
< insn
->paropcount
; i
++)
4050 enum optype partype
= insn
->paroperands
[i
].type
;
4052 if (!encode_operand (insn
, partype
, &insn
->paroperands
[i
]))
4062 optimize_insn (tic54x_insn
*insn
)
4064 /* Optimize some instructions, helping out the brain-dead programmer. */
4065 #define is_zero(op) ((op).exp.X_op == O_constant && (op).exp.X_add_number == 0)
4066 if (strcasecmp (insn
->tm
->name
, "add") == 0)
4068 if (insn
->opcount
> 1
4069 && is_accumulator (&insn
->operands
[insn
->opcount
- 2])
4070 && is_accumulator (&insn
->operands
[insn
->opcount
- 1])
4071 && strcasecmp (insn
->operands
[insn
->opcount
- 2].buf
,
4072 insn
->operands
[insn
->opcount
- 1].buf
) == 0)
4075 insn
->using_default_dst
= 1;
4079 /* Try to collapse if Xmem and shift count is zero. */
4080 if ((OPTYPE (insn
->tm
->operand_types
[0]) == OP_Xmem
4081 && OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHFT
4082 && is_zero (insn
->operands
[1]))
4083 /* Or if Smem, shift is zero or absent, and SRC == DST. */
4084 || (OPTYPE (insn
->tm
->operand_types
[0]) == OP_Smem
4085 && OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHIFT
4086 && is_type (&insn
->operands
[1], OP_SHIFT
)
4087 && is_zero (insn
->operands
[1]) && insn
->opcount
== 3))
4089 insn
->operands
[1] = insn
->operands
[2];
4094 else if (strcasecmp (insn
->tm
->name
, "ld") == 0)
4096 if (insn
->opcount
== 3 && insn
->operands
[0].type
!= OP_SRC
)
4098 if ((OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHIFT
4099 || OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHFT
)
4100 && is_zero (insn
->operands
[1])
4101 && (OPTYPE (insn
->tm
->operand_types
[0]) != OP_lk
4102 || (insn
->operands
[0].exp
.X_op
== O_constant
4103 && insn
->operands
[0].exp
.X_add_number
<= 255
4104 && insn
->operands
[0].exp
.X_add_number
>= 0)))
4106 insn
->operands
[1] = insn
->operands
[2];
4112 else if (strcasecmp (insn
->tm
->name
, "sth") == 0
4113 || strcasecmp (insn
->tm
->name
, "stl") == 0)
4115 if ((OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHIFT
4116 || OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHFT
)
4117 && is_zero (insn
->operands
[1]))
4119 insn
->operands
[1] = insn
->operands
[2];
4124 else if (strcasecmp (insn
->tm
->name
, "sub") == 0)
4126 if (insn
->opcount
> 1
4127 && is_accumulator (&insn
->operands
[insn
->opcount
- 2])
4128 && is_accumulator (&insn
->operands
[insn
->opcount
- 1])
4129 && strcasecmp (insn
->operands
[insn
->opcount
- 2].buf
,
4130 insn
->operands
[insn
->opcount
- 1].buf
) == 0)
4133 insn
->using_default_dst
= 1;
4137 if ( ((OPTYPE (insn
->tm
->operand_types
[0]) == OP_Smem
4138 && OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHIFT
)
4139 || (OPTYPE (insn
->tm
->operand_types
[0]) == OP_Xmem
4140 && OPTYPE (insn
->tm
->operand_types
[1]) == OP_SHFT
))
4141 && is_zero (insn
->operands
[1])
4142 && insn
->opcount
== 3)
4144 insn
->operands
[1] = insn
->operands
[2];
4152 /* Find a matching template if possible, and get the operand strings. */
4155 tic54x_parse_insn (tic54x_insn
*insn
, char *line
)
4157 insn
->tm
= (insn_template
*) hash_find (op_hash
, insn
->mnemonic
);
4160 as_bad (_("Unrecognized instruction \"%s\""), insn
->mnemonic
);
4164 insn
->opcount
= get_operands (insn
->operands
, line
);
4165 if (insn
->opcount
< 0)
4168 /* Check each variation of operands for this mnemonic. */
4169 while (insn
->tm
->name
&& strcasecmp (insn
->tm
->name
, insn
->mnemonic
) == 0)
4171 if (insn
->opcount
>= insn
->tm
->minops
4172 && insn
->opcount
<= insn
->tm
->maxops
4173 && operands_match (insn
, &insn
->operands
[0], insn
->opcount
,
4174 insn
->tm
->operand_types
,
4175 insn
->tm
->minops
, insn
->tm
->maxops
))
4177 /* SUCCESS! now try some optimizations. */
4178 if (optimize_insn (insn
))
4180 insn
->tm
= (insn_template
*) hash_find (op_hash
,
4189 as_bad (_("Unrecognized operand list '%s' for instruction '%s'"),
4190 line
, insn
->mnemonic
);
4194 /* We set this in start_line_hook, 'cause if we do a line replacement, we
4195 won't be able to see the next line. */
4196 static int parallel_on_next_line_hint
= 0;
4198 /* See if this is part of a parallel instruction
4199 Look for a subsequent line starting with "||". */
4202 next_line_shows_parallel (char *next_line
)
4204 /* Look for the second half. */
4205 while (ISSPACE (*next_line
))
4208 return (next_line
[0] == PARALLEL_SEPARATOR
4209 && next_line
[1] == PARALLEL_SEPARATOR
);
4213 tic54x_parse_parallel_insn_firstline (tic54x_insn
*insn
, char *line
)
4215 insn
->tm
= (insn_template
*) hash_find (parop_hash
, insn
->mnemonic
);
4218 as_bad (_("Unrecognized parallel instruction \"%s\""),
4223 while (insn
->tm
->name
&& strcasecmp (insn
->tm
->name
,
4224 insn
->mnemonic
) == 0)
4226 insn
->opcount
= get_operands (insn
->operands
, line
);
4227 if (insn
->opcount
< 0)
4229 if (insn
->opcount
== 2
4230 && operands_match (insn
, &insn
->operands
[0], insn
->opcount
,
4231 insn
->tm
->operand_types
, 2, 2))
4237 /* Didn't find a matching parallel; try for a normal insn. */
4241 /* Parse the second line of a two-line parallel instruction. */
4244 tic54x_parse_parallel_insn_lastline (tic54x_insn
*insn
, char *line
)
4246 int valid_mnemonic
= 0;
4248 insn
->paropcount
= get_operands (insn
->paroperands
, line
);
4249 while (insn
->tm
->name
&& strcasecmp (insn
->tm
->name
,
4250 insn
->mnemonic
) == 0)
4252 if (strcasecmp (insn
->tm
->parname
, insn
->parmnemonic
) == 0)
4256 if (insn
->paropcount
>= insn
->tm
->minops
4257 && insn
->paropcount
<= insn
->tm
->maxops
4258 && operands_match (insn
, insn
->paroperands
,
4260 insn
->tm
->paroperand_types
,
4261 insn
->tm
->minops
, insn
->tm
->maxops
))
4267 as_bad (_("Invalid operand (s) for parallel instruction \"%s\""),
4270 as_bad (_("Unrecognized parallel instruction combination \"%s || %s\""),
4271 insn
->mnemonic
, insn
->parmnemonic
);
4276 /* If quotes found, return copy of line up to closing quote;
4277 otherwise up until terminator.
4278 If it's a string, pass as-is; otherwise attempt substitution symbol
4279 replacement on the value. */
4282 subsym_get_arg (char *line
, const char *terminators
, char **str
, int nosub
)
4286 int is_string
= *line
== '"';
4287 int is_char
= ISDIGIT (*line
);
4291 while (ISDIGIT (*ptr
))
4294 *str
= xmemdup0 (line
, ptr
- line
);
4298 char *savedp
= input_line_pointer
;
4301 input_line_pointer
= ptr
;
4302 *str
= demand_copy_C_string (&len
);
4303 endp
= input_line_pointer
;
4304 input_line_pointer
= savedp
;
4306 /* Do forced substitutions if requested. */
4307 if (!nosub
&& **str
== ':')
4308 *str
= subsym_substitute (*str
, 1);
4312 const char *term
= terminators
;
4315 while (*ptr
&& *ptr
!= *term
)
4326 *str
= xmemdup0 (line
, ptr
- line
);
4327 /* Do simple substitution, if available. */
4328 if (!nosub
&& (value
= subsym_lookup (*str
, macro_level
)) != NULL
)
4335 /* Replace the given substitution string.
4336 We start at the innermost macro level, so that existing locals remain local
4337 Note: we're treating macro args identically to .var's; I don't know if
4338 that's compatible w/TI's assembler. */
4341 subsym_create_or_replace (char *name
, char *value
)
4345 for (i
= macro_level
; i
> 0; i
--)
4347 if (hash_find (subsym_hash
[i
], name
))
4349 hash_replace (subsym_hash
[i
], name
, value
);
4353 if (hash_find (subsym_hash
[0], name
))
4354 hash_replace (subsym_hash
[0], name
, value
);
4356 hash_insert (subsym_hash
[0], name
, value
);
4359 /* Look up the substitution string replacement for the given symbol.
4360 Start with the innermost macro substitution table given and work
4364 subsym_lookup (char *name
, int nest_level
)
4366 char *value
= hash_find (subsym_hash
[nest_level
], name
);
4368 if (value
|| nest_level
== 0)
4371 return subsym_lookup (name
, nest_level
- 1);
4374 /* Do substitution-symbol replacement on the given line (recursively).
4375 return the argument if no substitution was done
4377 Also look for built-in functions ($func (arg)) and local labels.
4379 If FORCED is set, look for forced substitutions of the form ':SYMBOL:'. */
4382 subsym_substitute (char *line
, int forced
)
4384 /* For each apparent symbol, see if it's a substitution symbol, and if so,
4385 replace it in the input. */
4386 char *replacement
; /* current replacement for LINE. */
4387 char *head
; /* Start of line. */
4388 char *ptr
; /* Current examination point. */
4389 int changed
= 0; /* Did we make a substitution? */
4390 int eval_line
= 0; /* Is this line a .eval/.asg statement? */
4391 int eval_symbol
= 0; /* Are we in the middle of the symbol for
4393 char *eval_end
= NULL
;
4395 int line_conditional
= 0;
4398 /* Work with a copy of the input line. */
4399 replacement
= xstrdup (line
);
4401 ptr
= head
= replacement
;
4403 /* Flag lines where we might need to replace a single '=' with two;
4404 GAS uses single '=' to assign macro args values, and possibly other
4405 places, so limit what we replace. */
4406 if (strstr (line
, ".if")
4407 || strstr (line
, ".elseif")
4408 || strstr (line
, ".break"))
4409 line_conditional
= 1;
4411 /* Watch out for .eval, so that we avoid doing substitution on the
4412 symbol being assigned a value. */
4413 if (strstr (line
, ".eval") || strstr (line
, ".asg"))
4416 /* If it's a macro definition, don't do substitution on the argument
4418 if (strstr (line
, ".macro"))
4421 while (!is_end_of_line
[(int) *ptr
])
4423 int current_char
= *ptr
;
4425 /* Need to update this since LINE may have been modified. */
4427 eval_end
= strrchr (ptr
, ',');
4429 /* Replace triple double quotes with bounding quote/escapes. */
4430 if (current_char
== '"' && ptr
[1] == '"' && ptr
[2] == '"')
4433 tmp
= strstr (ptr
+ 2, "\"\"\"");
4439 /* Replace a single '=' with a '==';
4440 for compatibility with older code only. */
4441 if (line_conditional
&& current_char
== '=')
4449 tmp
= concat (head
, "==", ptr
, (char *) NULL
);
4450 /* Continue examining after the '=='. */
4451 ptr
= tmp
+ strlen (head
) + 2;
4453 head
= replacement
= tmp
;
4457 /* Flag when we've reached the symbol part of .eval/.asg. */
4458 if (eval_line
&& ptr
>= eval_end
)
4461 /* For each apparent symbol, see if it's a substitution symbol, and if
4462 so, replace it in the input. */
4463 if ((forced
&& current_char
== ':')
4464 || (!forced
&& is_name_beginner (current_char
)))
4466 char *name
; /* Symbol to be replaced. */
4467 char *savedp
= input_line_pointer
;
4470 char *tail
; /* Rest of line after symbol. */
4472 /* Skip the colon. */
4476 input_line_pointer
= ptr
;
4477 c
= get_symbol_name (&name
);
4478 /* '?' is not normally part of a symbol, but it IS part of a local
4482 *input_line_pointer
++ = c
;
4483 c
= *input_line_pointer
;
4484 *input_line_pointer
= '\0';
4486 /* Avoid infinite recursion; if a symbol shows up a second time for
4487 substitution, leave it as is. */
4488 if (hash_find (subsym_recurse_hash
, name
) == NULL
)
4489 value
= subsym_lookup (name
, macro_level
);
4491 as_warn (_("%s symbol recursion stopped at "
4492 "second appearance of '%s'"),
4493 forced
? "Forced substitution" : "Substitution", name
);
4494 ptr
= tail
= input_line_pointer
;
4495 input_line_pointer
= savedp
;
4497 /* Check for local labels; replace them with the appropriate
4499 if ((*name
== '$' && ISDIGIT (name
[1]) && name
[2] == '\0')
4500 || name
[strlen (name
) - 1] == '?')
4502 /* Use an existing identifier for that label if, available, or
4503 create a new, unique identifier. */
4504 value
= hash_find (local_label_hash
[macro_level
], name
);
4508 char *namecopy
= xstrdup (name
);
4510 value
= strcpy (xmalloc (strlen (name
) + sizeof (digit
) + 1),
4513 value
[strlen (value
) - 1] = '\0';
4514 sprintf (digit
, ".%d", local_label_id
++);
4515 strcat (value
, digit
);
4516 hash_insert (local_label_hash
[macro_level
], namecopy
, value
);
4518 /* Indicate where to continue looking for substitutions. */
4521 /* Check for built-in subsym and math functions. */
4522 else if (value
!= NULL
&& *name
== '$')
4524 subsym_proc_entry
*entry
= (subsym_proc_entry
*) value
;
4525 math_proc_entry
*math_entry
= hash_find (math_hash
, name
);
4526 char *arg1
, *arg2
= NULL
;
4531 as_bad (_("Unrecognized substitution symbol function"));
4534 else if (*ptr
!= '(')
4536 as_bad (_("Missing '(' after substitution symbol function"));
4540 if (math_entry
!= NULL
)
4542 float farg1
, farg2
= 0;
4543 volatile float fresult
;
4545 farg1
= (float) strtod (ptr
, &ptr
);
4546 if (math_entry
->nargs
== 2)
4550 as_bad (_("Expecting second argument"));
4553 farg2
= (float) strtod (ptr
, &ptr
);
4555 fresult
= (*math_entry
->proc
) (farg1
, farg2
);
4556 value
= XNEWVEC (char, 128);
4557 if (math_entry
->int_return
)
4558 sprintf (value
, "%d", (int) fresult
);
4560 sprintf (value
, "%f", fresult
);
4563 as_bad (_("Extra junk in function call, expecting ')'"));
4566 /* Don't bother recursing; the replacement isn't a
4573 int arg_type
[2] = { *ptr
== '"' , 0 };
4574 int ismember
= !strcmp (entry
->name
, "$ismember");
4576 /* Parse one or two args, which must be a substitution
4577 symbol, string or a character-string constant. */
4578 /* For all functions, a string or substitution symbol may be
4579 used, with the following exceptions:
4580 firstch/lastch: 2nd arg must be character constant
4581 ismember: both args must be substitution symbols. */
4582 ptr
= subsym_get_arg (ptr
, ",)", &arg1
, ismember
);
4585 if (entry
->nargs
== 2)
4589 as_bad (_("Function expects two arguments"));
4592 /* Character constants are converted to numerics
4593 by the preprocessor. */
4594 arg_type
[1] = (ISDIGIT (*ptr
)) ? 2 : (*ptr
== '"');
4595 ptr
= subsym_get_arg (ptr
, ")", &arg2
, ismember
);
4597 /* Args checking. */
4598 if ((!strcmp (entry
->name
, "$firstch")
4599 || !strcmp (entry
->name
, "$lastch"))
4600 && arg_type
[1] != 2)
4602 as_bad (_("Expecting character constant argument"));
4606 && (arg_type
[0] != 0 || arg_type
[1] != 0))
4608 as_bad (_("Both arguments must be substitution symbols"));
4613 as_bad (_("Extra junk in function call, expecting ')'"));
4616 val
= (*entry
->proc
) (arg1
, arg2
);
4617 value
= XNEWVEC (char, 64);
4618 sprintf (value
, "%d", val
);
4620 /* Fix things up to replace the entire expression, not just the
4626 if (value
!= NULL
&& !eval_symbol
)
4628 /* Replace the symbol with its string replacement and
4629 continue. Recursively replace VALUE until either no
4630 substitutions are performed, or a substitution that has been
4631 previously made is encountered again.
4633 Put the symbol into the recursion hash table so we only
4634 try to replace a symbol once. */
4637 hash_insert (subsym_recurse_hash
, name
, name
);
4638 value
= subsym_substitute (value
, macro_level
> 0);
4639 hash_delete (subsym_recurse_hash
, name
, FALSE
);
4642 /* Temporarily zero-terminate where the symbol started. */
4648 /* Subscripted substitution symbol -- use just the
4649 indicated portion of the string; the description
4650 kinda indicates that forced substitution is not
4651 supposed to be recursive, but I'm not sure. */
4652 unsigned beg
, len
= 1; /* default to a single char */
4653 char *newval
= xstrdup (value
);
4655 savedp
= input_line_pointer
;
4656 input_line_pointer
= tail
+ 1;
4657 beg
= get_absolute_expression ();
4660 as_bad (_("Invalid subscript (use 1 to %d)"),
4661 (int) strlen (value
));
4664 if (*input_line_pointer
== ',')
4666 ++input_line_pointer
;
4667 len
= get_absolute_expression ();
4668 if (beg
+ len
> strlen (value
))
4670 as_bad (_("Invalid length (use 0 to %d"),
4671 (int) strlen (value
) - beg
);
4677 tail
= input_line_pointer
;
4680 as_bad (_("Missing ')' in subscripted substitution "
4681 "symbol expression"));
4685 input_line_pointer
= savedp
;
4691 tmp
= xmalloc (strlen (head
) + strlen (value
) +
4692 strlen (tail
+ 1) + 2);
4694 strcat (tmp
, value
);
4695 /* Make sure forced substitutions are properly terminated. */
4700 as_bad (_("Missing forced substitution terminator ':'"));
4706 /* Restore the character after the symbol end. */
4709 /* Continue examining after the replacement value. */
4710 ptr
= tmp
+ strlen (head
) + strlen (value
);
4712 head
= replacement
= tmp
;
4730 /* We use this to handle substitution symbols
4731 hijack input_line_pointer, replacing it with our substituted string.
4733 .sslist should enable listing the line after replacements are made...
4735 returns the new buffer limit. */
4738 tic54x_start_line_hook (void)
4741 char *replacement
= NULL
;
4743 /* Work with a copy of the input line, including EOL char. */
4744 endp
= input_line_pointer
;
4745 while (!is_end_of_line
[(int) *endp
++])
4747 line
= xmemdup0 (input_line_pointer
, endp
- input_line_pointer
);
4749 /* Scan ahead for parallel insns. */
4750 parallel_on_next_line_hint
= next_line_shows_parallel (endp
);
4752 /* If within a macro, first process forced replacements. */
4753 if (macro_level
> 0)
4754 replacement
= subsym_substitute (line
, 1);
4757 replacement
= subsym_substitute (replacement
, 0);
4759 if (replacement
!= line
)
4761 char *tmp
= replacement
;
4762 char *comment
= strchr (replacement
, ';');
4763 char endc
= replacement
[strlen (replacement
) - 1];
4765 /* Clean up the replacement; we'd prefer to have this done by the
4766 standard preprocessing equipment (maybe do_scrub_chars?)
4767 but for now, do a quick-and-dirty. */
4768 if (comment
!= NULL
)
4775 comment
= replacement
+ strlen (replacement
) - 1;
4777 /* Trim trailing whitespace. */
4778 while (ISSPACE (*comment
))
4785 /* Compact leading whitespace. */
4786 while (ISSPACE (tmp
[0]) && ISSPACE (tmp
[1]))
4789 input_line_pointer
= endp
;
4790 input_scrub_insert_line (tmp
);
4793 /* Keep track of whether we've done a substitution. */
4794 substitution_line
= 1;
4800 substitution_line
= 0;
4804 /* This is the guts of the machine-dependent assembler. STR points to a
4805 machine dependent instruction. This function is supposed to emit
4806 the frags/bytes it assembles to. */
4808 md_assemble (char *line
)
4810 static int repeat_slot
= 0;
4811 static int delay_slots
= 0; /* How many delay slots left to fill? */
4812 static int is_parallel
= 0;
4813 static tic54x_insn insn
;
4815 char *savedp
= input_line_pointer
;
4818 input_line_pointer
= line
;
4819 c
= get_symbol_name (&line
);
4823 if (address_mode_needs_set
)
4825 set_address_mode (amode
);
4826 address_mode_needs_set
= 0;
4839 strcpy (insn
.parmnemonic
, line
);
4840 lptr
= input_line_pointer
;
4842 input_line_pointer
= savedp
;
4844 if (tic54x_parse_parallel_insn_lastline (&insn
, lptr
))
4846 int words
= build_insn (&insn
);
4848 if (delay_slots
!= 0)
4850 if (words
> delay_slots
)
4852 as_bad (_("Instruction does not fit in available delay "
4853 "slots (%d-word insn, %d slots left)"),
4854 words
, delay_slots
);
4858 delay_slots
-= words
;
4864 memset (&insn
, 0, sizeof (insn
));
4865 strcpy (insn
.mnemonic
, line
);
4866 lptr
= input_line_pointer
;
4868 input_line_pointer
= savedp
;
4870 /* See if this line is part of a parallel instruction; if so, either this
4871 line or the next line will have the "||" specifier preceding the
4872 mnemonic, and we look for it in the parallel insn hash table. */
4873 if (strstr (line
, "||") != NULL
|| parallel_on_next_line_hint
)
4875 char *tmp
= strstr (line
, "||");
4879 if (tic54x_parse_parallel_insn_firstline (&insn
, lptr
))
4882 /* If the parallel part is on the same line, process it now,
4883 otherwise let the assembler pick up the next line for us. */
4886 while (ISSPACE (tmp
[2]))
4888 md_assemble (tmp
+ 2);
4893 as_bad (_("Unrecognized parallel instruction '%s'"), line
);
4898 if (tic54x_parse_insn (&insn
, lptr
))
4902 if ((insn
.tm
->flags
& FL_LP
)
4903 && cpu
!= V545LP
&& cpu
!= V546LP
)
4905 as_bad (_("Instruction '%s' requires an LP cpu version"),
4909 if ((insn
.tm
->flags
& FL_FAR
)
4910 && amode
!= far_mode
)
4912 as_bad (_("Instruction '%s' requires far mode addressing"),
4917 words
= build_insn (&insn
);
4919 /* Is this instruction in a delay slot? */
4922 if (words
> delay_slots
)
4924 as_warn (_("Instruction does not fit in available delay "
4925 "slots (%d-word insn, %d slots left). "
4926 "Resulting behavior is undefined."),
4927 words
, delay_slots
);
4931 /* Branches in delay slots are not allowed. */
4932 if (insn
.tm
->flags
& FL_BMASK
)
4934 as_warn (_("Instructions which cause PC discontinuity are not "
4935 "allowed in a delay slot. "
4936 "Resulting behavior is undefined."));
4938 delay_slots
-= words
;
4941 /* Is this instruction the target of a repeat? */
4944 if (insn
.tm
->flags
& FL_NR
)
4945 as_warn (_("'%s' is not repeatable. "
4946 "Resulting behavior is undefined."),
4948 else if (insn
.is_lkaddr
)
4949 as_warn (_("Instructions using long offset modifiers or absolute "
4950 "addresses are not repeatable. "
4951 "Resulting behavior is undefined."));
4955 /* Make sure we check the target of a repeat instruction. */
4956 if (insn
.tm
->flags
& B_REPEAT
)
4959 /* FIXME -- warn if repeat_slot == 1 at EOF. */
4961 /* Make sure we check our delay slots for validity. */
4962 if (insn
.tm
->flags
& FL_DELAY
)
4965 /* FIXME -- warn if delay_slots != 0 at EOF. */
4970 /* Do a final adjustment on the symbol table; in this case, make sure we have
4971 a ".file" symbol. */
4974 tic54x_adjust_symtab (void)
4976 if (symbol_rootP
== NULL
4977 || S_GET_STORAGE_CLASS (symbol_rootP
) != C_FILE
)
4980 const char * filename
= as_where (&lineno
);
4981 c_dot_file_symbol (filename
, 0);
4985 /* In order to get gas to ignore any | chars at the start of a line,
4986 this function returns true if a | is found in a line.
4987 This lets us process parallel instructions, which span two lines. */
4990 tic54x_unrecognized_line (int c
)
4992 return c
== PARALLEL_SEPARATOR
;
4995 /* Watch for local labels of the form $[0-9] and [_a-zA-Z][_a-zA-Z0-9]*?
4996 Encode their names so that only we see them and can map them to the
4998 FIXME -- obviously this isn't done yet. These locals still show up in the
5001 tic54x_define_label (symbolS
*sym
)
5003 /* Just in case we need this later; note that this is not necessarily the
5004 same thing as line_label...
5005 When aligning or assigning labels to fields, sometimes the label is
5006 assigned other than the address at which the label appears.
5007 FIXME -- is this really needed? I think all the proper label assignment
5008 is done in tic54x_cons. */
5009 last_label_seen
= sym
;
5012 /* Try to parse something that normal parsing failed at. */
5015 tic54x_undefined_symbol (char *name
)
5019 /* Not sure how to handle predefined symbols. */
5020 if ((sym
= (tic54x_symbol
*) hash_find (cc_hash
, name
)) != NULL
||
5021 (sym
= (tic54x_symbol
*) hash_find (cc2_hash
, name
)) != NULL
||
5022 (sym
= (tic54x_symbol
*) hash_find (cc3_hash
, name
)) != NULL
||
5023 (sym
= (tic54x_symbol
*) hash_find (misc_symbol_hash
, name
)) != NULL
||
5024 (sym
= (tic54x_symbol
*) hash_find (sbit_hash
, name
)) != NULL
)
5026 return symbol_new (name
, reg_section
,
5027 (valueT
) sym
->value
,
5028 &zero_address_frag
);
5031 if ((sym
= (tic54x_symbol
*) hash_find (reg_hash
, name
)) != NULL
||
5032 (sym
= (tic54x_symbol
*) hash_find (mmreg_hash
, name
)) != NULL
||
5033 !strcasecmp (name
, "a") || !strcasecmp (name
, "b"))
5035 return symbol_new (name
, reg_section
,
5036 (valueT
) sym
? sym
->value
: 0,
5037 &zero_address_frag
);
5043 /* Parse a name in an expression before the expression parser takes a stab at
5047 tic54x_parse_name (char *name ATTRIBUTE_UNUSED
,
5048 expressionS
*expn ATTRIBUTE_UNUSED
)
5054 md_atof (int type
, char *literalP
, int *sizeP
)
5056 /* Target data is little-endian, but floats are stored
5057 big-"word"ian. ugh. */
5058 return ieee_md_atof (type
, literalP
, sizeP
, TRUE
);
5062 tc_gen_reloc (asection
*section
, fixS
*fixP
)
5065 bfd_reloc_code_real_type code
= fixP
->fx_r_type
;
5066 asymbol
*sym
= symbol_get_bfdsym (fixP
->fx_addsy
);
5068 rel
= XNEW (arelent
);
5069 rel
->sym_ptr_ptr
= XNEW (asymbol
*);
5070 *rel
->sym_ptr_ptr
= sym
;
5071 /* We assume that all rel->address are host byte offsets. */
5072 rel
->address
= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5073 rel
->address
/= OCTETS_PER_BYTE
;
5074 rel
->howto
= bfd_reloc_type_lookup (stdoutput
, code
);
5075 if (!strcmp (sym
->name
, section
->name
))
5076 rel
->howto
+= HOWTO_BANK
;
5080 const char *name
= S_GET_NAME (fixP
->fx_addsy
);
5083 as_fatal ("Cannot generate relocation type for symbol %s, code %s",
5084 name
, bfd_get_reloc_code_name (code
));
5090 /* Handle cons expressions. */
5093 tic54x_cons_fix_new (fragS
*frag
, int where
, int octets
, expressionS
*expn
,
5094 bfd_reloc_code_real_type r
)
5099 as_bad (_("Unsupported relocation size %d"), octets
);
5100 r
= BFD_RELOC_TIC54X_16_OF_23
;
5103 r
= BFD_RELOC_TIC54X_16_OF_23
;
5106 /* TI assembler always uses this, regardless of addressing mode. */
5108 r
= BFD_RELOC_TIC54X_23
;
5110 /* We never want to directly generate this; this is provided for
5111 stabs support only. */
5115 fix_new_exp (frag
, where
, octets
, expn
, 0, r
);
5118 /* Attempt to simplify or even eliminate a fixup.
5119 To indicate that a fixup has been eliminated, set fixP->fx_done.
5121 If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry. */
5124 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
5126 char *buf
= fixP
->fx_where
+ fixP
->fx_frag
->fr_literal
;
5127 valueT val
= * valP
;
5129 switch (fixP
->fx_r_type
)
5132 as_fatal ("Bad relocation type: 0x%02x", fixP
->fx_r_type
);
5134 case BFD_RELOC_TIC54X_MS7_OF_23
:
5135 val
= (val
>> 16) & 0x7F;
5137 case BFD_RELOC_TIC54X_16_OF_23
:
5139 bfd_put_16 (stdoutput
, val
, buf
);
5140 /* Indicate what we're actually writing, so that we don't get warnings
5141 about exceeding available space. */
5142 *valP
= val
& 0xFFFF;
5144 case BFD_RELOC_TIC54X_PARTLS7
:
5145 bfd_put_16 (stdoutput
,
5146 (bfd_get_16 (stdoutput
, buf
) & 0xFF80) | (val
& 0x7F),
5148 /* Indicate what we're actually writing, so that we don't get warnings
5149 about exceeding available space. */
5152 case BFD_RELOC_TIC54X_PARTMS9
:
5153 /* TI assembler doesn't shift its encoding for relocatable files, and is
5154 thus incompatible with this implementation's relocatable files. */
5155 bfd_put_16 (stdoutput
,
5156 (bfd_get_16 (stdoutput
, buf
) & 0xFE00) | (val
>> 7),
5160 case BFD_RELOC_TIC54X_23
:
5161 bfd_put_32 (stdoutput
,
5162 (bfd_get_32 (stdoutput
, buf
) & 0xFF800000) | val
,
5167 if (fixP
->fx_addsy
== NULL
&& fixP
->fx_pcrel
== 0)
5171 /* This is our chance to record section alignment
5172 don't need to do anything here, since BFD does the proper encoding. */
5175 md_section_align (segT segment ATTRIBUTE_UNUSED
, valueT section_size
)
5177 return section_size
;
5181 md_pcrel_from (fixS
*fixP ATTRIBUTE_UNUSED
)
5186 /* Mostly little-endian, but longwords (4 octets) get MS word stored
5190 tic54x_number_to_chars (char *buf
, valueT val
, int n
)
5193 number_to_chars_littleendian (buf
, val
, n
);
5196 number_to_chars_littleendian (buf
, val
>> 16 , 2);
5197 number_to_chars_littleendian (buf
+ 2, val
& 0xFFFF, 2);
5202 tic54x_estimate_size_before_relax (fragS
*frag ATTRIBUTE_UNUSED
,
5203 segT seg ATTRIBUTE_UNUSED
)
5208 /* We use this to handle bit allocations which we couldn't handle before due
5209 to symbols being in different frags. return number of octets added. */
5212 tic54x_relax_frag (fragS
*frag
, long stretch ATTRIBUTE_UNUSED
)
5214 symbolS
*sym
= frag
->fr_symbol
;
5220 struct bit_info
*bi
= (struct bit_info
*) frag
->fr_opcode
;
5221 int bit_offset
= frag_bit_offset (frag_prev (frag
, bi
->seg
), bi
->seg
);
5222 int size
= S_GET_VALUE (sym
);
5223 fragS
*prev_frag
= bit_offset_frag (frag_prev (frag
, bi
->seg
), bi
->seg
);
5224 int available
= 16 - bit_offset
;
5226 if (symbol_get_frag (sym
) != &zero_address_frag
5227 || S_IS_COMMON (sym
)
5228 || !S_IS_DEFINED (sym
))
5229 as_bad_where (frag
->fr_file
, frag
->fr_line
,
5230 _("non-absolute value used with .space/.bes"));
5234 as_warn (_("negative value ignored in %s"),
5235 bi
->type
== TYPE_SPACE
? ".space" :
5236 bi
->type
== TYPE_BES
? ".bes" : ".field");
5238 frag
->tc_frag_data
= frag
->fr_fix
= 0;
5242 if (bi
->type
== TYPE_FIELD
)
5244 /* Bit fields of 16 or larger will have already been handled. */
5245 if (bit_offset
!= 0 && available
>= size
)
5247 char *p
= prev_frag
->fr_literal
;
5249 valueT value
= bi
->value
;
5250 value
<<= available
- size
;
5251 value
|= ((unsigned short) p
[1] << 8) | p
[0];
5252 md_number_to_chars (p
, value
, 2);
5253 if ((prev_frag
->tc_frag_data
+= size
) == 16)
5254 prev_frag
->tc_frag_data
= 0;
5256 symbol_set_frag (bi
->sym
, prev_frag
);
5257 /* This frag is no longer used. */
5258 growth
= -frag
->fr_fix
;
5260 frag
->tc_frag_data
= 0;
5264 char *p
= frag
->fr_literal
;
5266 valueT value
= bi
->value
<< (16 - size
);
5267 md_number_to_chars (p
, value
, 2);
5268 if ((frag
->tc_frag_data
= size
) == 16)
5269 frag
->tc_frag_data
= 0;
5275 if (bit_offset
!= 0 && bit_offset
< 16)
5277 if (available
>= size
)
5279 if ((prev_frag
->tc_frag_data
+= size
) == 16)
5280 prev_frag
->tc_frag_data
= 0;
5282 symbol_set_frag (bi
->sym
, prev_frag
);
5283 /* This frag is no longer used. */
5284 growth
= -frag
->fr_fix
;
5286 frag
->tc_frag_data
= 0;
5289 if (bi
->type
== TYPE_SPACE
&& bi
->sym
)
5290 symbol_set_frag (bi
->sym
, prev_frag
);
5293 growth
= (size
+ 15) / 16 * OCTETS_PER_BYTE
- frag
->fr_fix
;
5294 for (i
= 0; i
< growth
; i
++)
5295 frag
->fr_literal
[i
] = 0;
5296 frag
->fr_fix
= growth
;
5297 frag
->tc_frag_data
= size
% 16;
5298 /* Make sure any BES label points to the LAST word allocated. */
5299 if (bi
->type
== TYPE_BES
&& bi
->sym
)
5300 S_SET_VALUE (bi
->sym
, frag
->fr_fix
/ OCTETS_PER_BYTE
- 1);
5303 frag
->fr_symbol
= 0;
5304 frag
->fr_opcode
= 0;
5311 tic54x_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
5312 segT seg ATTRIBUTE_UNUSED
,
5315 /* Offset is in bytes. */
5316 frag
->fr_offset
= (frag
->fr_next
->fr_address
5318 - frag
->fr_fix
) / frag
->fr_var
;
5319 if (frag
->fr_offset
< 0)
5321 as_bad_where (frag
->fr_file
, frag
->fr_line
,
5322 _("attempt to .space/.bes backwards? (%ld)"),
5323 (long) frag
->fr_offset
);
5325 frag
->fr_type
= rs_space
;
5328 /* We need to avoid having labels defined for certain directives/pseudo-ops
5329 since once the label is defined, it's in the symbol table for good. TI
5330 syntax puts the symbol *before* the pseudo (which is kinda like MRI syntax,
5331 I guess, except I've never seen a definition of MRI syntax).
5333 Don't allow labels to start with '.' */
5336 tic54x_start_label (int nul_char
, int next_char
)
5340 /* If within .struct/.union, no auto line labels, please. */
5341 if (current_stag
!= NULL
)
5344 /* Disallow labels starting with "." */
5345 if (next_char
!= ':')
5347 char *label
= input_line_pointer
;
5349 while (!is_end_of_line
[(int) label
[-1]])
5353 as_bad (_("Invalid label '%s'"), label
);
5358 if (is_end_of_line
[(int) next_char
])
5361 rest
= input_line_pointer
;
5362 if (nul_char
== '"')
5364 while (ISSPACE (next_char
))
5365 next_char
= *++rest
;
5366 if (next_char
!= '.')
5369 /* Don't let colon () define a label for any of these... */
5370 return ((strncasecmp (rest
, ".tag", 4) != 0 || !ISSPACE (rest
[4]))
5371 && (strncasecmp (rest
, ".struct", 7) != 0 || !ISSPACE (rest
[7]))
5372 && (strncasecmp (rest
, ".union", 6) != 0 || !ISSPACE (rest
[6]))
5373 && (strncasecmp (rest
, ".macro", 6) != 0 || !ISSPACE (rest
[6]))
5374 && (strncasecmp (rest
, ".set", 4) != 0 || !ISSPACE (rest
[4]))
5375 && (strncasecmp (rest
, ".equ", 4) != 0 || !ISSPACE (rest
[4])));