1 /* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
2 /* Disassembler interface for targets using CGEN. -*- C -*-
3 CGEN: Cpu tools GENerator
5 THIS FILE IS MACHINE GENERATED WITH CGEN.
6 - the resultant file is machine generated, cgen-dis.in isn't
8 Copyright (C) 1996-2019 Free Software Foundation, Inc.
10 This file is part of libopcodes.
12 This library is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3, or (at your option)
17 It is distributed in the hope that it will be useful, but WITHOUT
18 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
20 License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software Foundation, Inc.,
24 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
26 /* ??? Eventually more and more of this stuff can go to cpu-independent files.
32 #include "disassemble.h"
35 #include "libiberty.h"
36 #include "xc16x-desc.h"
37 #include "xc16x-opc.h"
40 /* Default text to print if an instruction isn't recognized. */
41 #define UNKNOWN_INSN_MSG _("*unknown*")
43 static void print_normal
44 (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
45 static void print_address
46 (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
47 static void print_keyword
48 (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
49 static void print_insn_normal
50 (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
52 (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
53 static int default_print_insn
54 (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
56 (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
59 /* -- disassembler routines inserted here. */
63 /* Print an operand with a "." prefix.
64 NOTE: This prints the operand in hex.
65 ??? This exists to maintain disassembler compatibility with previous
66 versions. Ideally we'd print the "." in print_dot. */
69 print_with_dot_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
72 unsigned attrs ATTRIBUTE_UNUSED,
73 bfd_vma pc ATTRIBUTE_UNUSED,
74 int length ATTRIBUTE_UNUSED)
76 disassemble_info *info = (disassemble_info *) dis_info;
78 info->fprintf_func (info->stream, ".");
79 info->fprintf_func (info->stream, "0x%lx", value);
82 /* Print an operand with a "#pof:" prefix.
83 NOTE: This prints the operand as an address.
84 ??? This exists to maintain disassembler compatibility with previous
85 versions. Ideally we'd print "#pof:" in print_pof. */
88 print_with_pof_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
91 unsigned attrs ATTRIBUTE_UNUSED,
92 bfd_vma pc ATTRIBUTE_UNUSED,
93 int length ATTRIBUTE_UNUSED)
95 disassemble_info *info = (disassemble_info *) dis_info;
97 info->fprintf_func (info->stream, "#pof:");
98 info->fprintf_func (info->stream, "0x%lx", (long) value);
101 /* Print an operand with a "#pag:" prefix.
102 NOTE: This prints the operand in hex.
103 ??? This exists to maintain disassembler compatibility with previous
104 versions. Ideally we'd print "#pag:" in print_pag. */
107 print_with_pag_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
110 unsigned attrs ATTRIBUTE_UNUSED,
111 bfd_vma pc ATTRIBUTE_UNUSED,
112 int length ATTRIBUTE_UNUSED)
114 disassemble_info *info = (disassemble_info *) dis_info;
116 info->fprintf_func (info->stream, "#pag:");
117 info->fprintf_func (info->stream, "0x%lx", value);
120 /* Print a 'pof:' prefix to an operand. */
123 print_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
124 void * dis_info ATTRIBUTE_UNUSED,
125 long value ATTRIBUTE_UNUSED,
126 unsigned int attrs ATTRIBUTE_UNUSED,
127 bfd_vma pc ATTRIBUTE_UNUSED,
128 int length ATTRIBUTE_UNUSED)
132 /* Print a 'pag:' prefix to an operand. */
135 print_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
136 void * dis_info ATTRIBUTE_UNUSED,
137 long value ATTRIBUTE_UNUSED,
138 unsigned int attrs ATTRIBUTE_UNUSED,
139 bfd_vma pc ATTRIBUTE_UNUSED,
140 int length ATTRIBUTE_UNUSED)
144 /* Print a 'sof:' prefix to an operand. */
147 print_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
149 long value ATTRIBUTE_UNUSED,
150 unsigned int attrs ATTRIBUTE_UNUSED,
151 bfd_vma pc ATTRIBUTE_UNUSED,
152 int length ATTRIBUTE_UNUSED)
154 disassemble_info *info = (disassemble_info *) dis_info;
156 info->fprintf_func (info->stream, "sof:");
159 /* Print a 'seg:' prefix to an operand. */
162 print_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
164 long value ATTRIBUTE_UNUSED,
165 unsigned int attrs ATTRIBUTE_UNUSED,
166 bfd_vma pc ATTRIBUTE_UNUSED,
167 int length ATTRIBUTE_UNUSED)
169 disassemble_info *info = (disassemble_info *) dis_info;
171 info->fprintf_func (info->stream, "seg:");
174 /* Print a '#' prefix to an operand. */
177 print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
179 long value ATTRIBUTE_UNUSED,
180 unsigned int attrs ATTRIBUTE_UNUSED,
181 bfd_vma pc ATTRIBUTE_UNUSED,
182 int length ATTRIBUTE_UNUSED)
184 disassemble_info *info = (disassemble_info *) dis_info;
186 info->fprintf_func (info->stream, "#");
189 /* Print a '.' prefix to an operand. */
192 print_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
193 void * dis_info ATTRIBUTE_UNUSED,
194 long value ATTRIBUTE_UNUSED,
195 unsigned int attrs ATTRIBUTE_UNUSED,
196 bfd_vma pc ATTRIBUTE_UNUSED,
197 int length ATTRIBUTE_UNUSED)
203 void xc16x_cgen_print_operand
204 (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
206 /* Main entry point for printing operands.
207 XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
208 of dis-asm.h on cgen.h.
210 This function is basically just a big switch statement. Earlier versions
211 used tables to look up the function to use, but
212 - if the table contains both assembler and disassembler functions then
213 the disassembler contains much of the assembler and vice-versa,
214 - there's a lot of inlining possibilities as things grow,
215 - using a switch statement avoids the function call overhead.
217 This function could be moved into `print_insn_normal', but keeping it
218 separate makes clear the interface between `print_insn_normal' and each of
222 xc16x_cgen_print_operand (CGEN_CPU_DESC cd,
226 void const *attrs ATTRIBUTE_UNUSED,
230 disassemble_info *info = (disassemble_info *) xinfo;
234 case XC16X_OPERAND_REGNAM :
235 print_keyword (cd, info, & xc16x_cgen_opval_psw_names, fields->f_reg8, 0);
237 case XC16X_OPERAND_BIT01 :
238 print_normal (cd, info, fields->f_op_1bit, 0, pc, length);
240 case XC16X_OPERAND_BIT1 :
241 print_normal (cd, info, fields->f_op_bit1, 0, pc, length);
243 case XC16X_OPERAND_BIT2 :
244 print_normal (cd, info, fields->f_op_bit2, 0, pc, length);
246 case XC16X_OPERAND_BIT4 :
247 print_normal (cd, info, fields->f_op_bit4, 0, pc, length);
249 case XC16X_OPERAND_BIT8 :
250 print_normal (cd, info, fields->f_op_bit8, 0, pc, length);
252 case XC16X_OPERAND_BITONE :
253 print_normal (cd, info, fields->f_op_onebit, 0, pc, length);
255 case XC16X_OPERAND_CADDR :
256 print_address (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
258 case XC16X_OPERAND_COND :
259 print_keyword (cd, info, & xc16x_cgen_opval_conditioncode_names, fields->f_condcode, 0);
261 case XC16X_OPERAND_DATA8 :
262 print_normal (cd, info, fields->f_data8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
264 case XC16X_OPERAND_DATAHI8 :
265 print_normal (cd, info, fields->f_datahi8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
267 case XC16X_OPERAND_DOT :
268 print_dot (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
270 case XC16X_OPERAND_DR :
271 print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r1, 0);
273 case XC16X_OPERAND_DRB :
274 print_keyword (cd, info, & xc16x_cgen_opval_grb_names, fields->f_r1, 0);
276 case XC16X_OPERAND_DRI :
277 print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r4, 0);
279 case XC16X_OPERAND_EXTCOND :
280 print_keyword (cd, info, & xc16x_cgen_opval_extconditioncode_names, fields->f_extccode, 0);
282 case XC16X_OPERAND_GENREG :
283 print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_regb8, 0);
285 case XC16X_OPERAND_HASH :
286 print_hash (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
288 case XC16X_OPERAND_ICOND :
289 print_keyword (cd, info, & xc16x_cgen_opval_conditioncode_names, fields->f_icondcode, 0);
291 case XC16X_OPERAND_LBIT2 :
292 print_normal (cd, info, fields->f_op_lbit2, 0, pc, length);
294 case XC16X_OPERAND_LBIT4 :
295 print_normal (cd, info, fields->f_op_lbit4, 0, pc, length);
297 case XC16X_OPERAND_MASK8 :
298 print_normal (cd, info, fields->f_mask8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
300 case XC16X_OPERAND_MASKLO8 :
301 print_normal (cd, info, fields->f_datahi8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
303 case XC16X_OPERAND_MEMGR8 :
304 print_keyword (cd, info, & xc16x_cgen_opval_memgr8_names, fields->f_memgr8, 0);
306 case XC16X_OPERAND_MEMORY :
307 print_address (cd, info, fields->f_memory, 0, pc, length);
309 case XC16X_OPERAND_PAG :
310 print_pag (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
312 case XC16X_OPERAND_PAGENUM :
313 print_normal (cd, info, fields->f_pagenum, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
315 case XC16X_OPERAND_POF :
316 print_pof (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
318 case XC16X_OPERAND_QBIT :
319 print_with_dot_prefix (cd, info, fields->f_qbit, 0|(1<<CGEN_OPERAND_DOT_PREFIX), pc, length);
321 case XC16X_OPERAND_QHIBIT :
322 print_with_dot_prefix (cd, info, fields->f_qhibit, 0|(1<<CGEN_OPERAND_DOT_PREFIX), pc, length);
324 case XC16X_OPERAND_QLOBIT :
325 print_with_dot_prefix (cd, info, fields->f_qlobit, 0|(1<<CGEN_OPERAND_DOT_PREFIX), pc, length);
327 case XC16X_OPERAND_REG8 :
328 print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_reg8, 0);
330 case XC16X_OPERAND_REGB8 :
331 print_keyword (cd, info, & xc16x_cgen_opval_grb8_names, fields->f_regb8, 0);
333 case XC16X_OPERAND_REGBMEM8 :
334 print_keyword (cd, info, & xc16x_cgen_opval_regbmem8_names, fields->f_regmem8, 0);
336 case XC16X_OPERAND_REGHI8 :
337 print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_reghi8, 0);
339 case XC16X_OPERAND_REGMEM8 :
340 print_keyword (cd, info, & xc16x_cgen_opval_regmem8_names, fields->f_regmem8, 0);
342 case XC16X_OPERAND_REGOFF8 :
343 print_keyword (cd, info, & xc16x_cgen_opval_r8_names, fields->f_regoff8, 0);
345 case XC16X_OPERAND_REL :
346 print_normal (cd, info, fields->f_rel8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
348 case XC16X_OPERAND_RELHI :
349 print_normal (cd, info, fields->f_relhi8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
351 case XC16X_OPERAND_SEG :
352 print_normal (cd, info, fields->f_seg8, 0, pc, length);
354 case XC16X_OPERAND_SEGHI8 :
355 print_normal (cd, info, fields->f_segnum8, 0, pc, length);
357 case XC16X_OPERAND_SEGM :
358 print_seg (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
360 case XC16X_OPERAND_SOF :
361 print_sof (cd, info, 0, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
363 case XC16X_OPERAND_SR :
364 print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r2, 0);
366 case XC16X_OPERAND_SR2 :
367 print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r0, 0);
369 case XC16X_OPERAND_SRB :
370 print_keyword (cd, info, & xc16x_cgen_opval_grb_names, fields->f_r2, 0);
372 case XC16X_OPERAND_SRC1 :
373 print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r1, 0);
375 case XC16X_OPERAND_SRC2 :
376 print_keyword (cd, info, & xc16x_cgen_opval_gr_names, fields->f_r2, 0);
378 case XC16X_OPERAND_SRDIV :
379 print_keyword (cd, info, & xc16x_cgen_opval_regdiv8_names, fields->f_reg8, 0);
381 case XC16X_OPERAND_U4 :
382 print_keyword (cd, info, & xc16x_cgen_opval_reg0_name, fields->f_uimm4, 0);
384 case XC16X_OPERAND_UIMM16 :
385 print_normal (cd, info, fields->f_uimm16, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
387 case XC16X_OPERAND_UIMM2 :
388 print_keyword (cd, info, & xc16x_cgen_opval_ext_names, fields->f_uimm2, 0|(1<<CGEN_OPERAND_HASH_PREFIX));
390 case XC16X_OPERAND_UIMM3 :
391 print_keyword (cd, info, & xc16x_cgen_opval_reg0_name1, fields->f_uimm3, 0|(1<<CGEN_OPERAND_HASH_PREFIX));
393 case XC16X_OPERAND_UIMM4 :
394 print_normal (cd, info, fields->f_uimm4, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
396 case XC16X_OPERAND_UIMM7 :
397 print_normal (cd, info, fields->f_uimm7, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
399 case XC16X_OPERAND_UIMM8 :
400 print_normal (cd, info, fields->f_uimm8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
402 case XC16X_OPERAND_UPAG16 :
403 print_with_pag_prefix (cd, info, fields->f_uimm16, 0|(1<<CGEN_OPERAND_PAG_PREFIX), pc, length);
405 case XC16X_OPERAND_UPOF16 :
406 print_with_pof_prefix (cd, info, fields->f_memory, 0|(1<<CGEN_OPERAND_POF_PREFIX), pc, length);
408 case XC16X_OPERAND_USEG16 :
409 print_normal (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_SEG_PREFIX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
411 case XC16X_OPERAND_USEG8 :
412 print_normal (cd, info, fields->f_seg8, 0|(1<<CGEN_OPERAND_SEG_PREFIX), pc, length);
414 case XC16X_OPERAND_USOF16 :
415 print_normal (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_SOF_PREFIX)|(1<<CGEN_OPERAND_RELOC)|(1<<CGEN_OPERAND_ABS_ADDR), pc, length);
419 /* xgettext:c-format */
420 opcodes_error_handler
421 (_("internal error: unrecognized field %d while printing insn"),
427 cgen_print_fn * const xc16x_cgen_print_handlers[] =
434 xc16x_cgen_init_dis (CGEN_CPU_DESC cd)
436 xc16x_cgen_init_opcode_table (cd);
437 xc16x_cgen_init_ibld_table (cd);
438 cd->print_handlers = & xc16x_cgen_print_handlers[0];
439 cd->print_operand = xc16x_cgen_print_operand;
443 /* Default print handler. */
446 print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
450 bfd_vma pc ATTRIBUTE_UNUSED,
451 int length ATTRIBUTE_UNUSED)
453 disassemble_info *info = (disassemble_info *) dis_info;
455 /* Print the operand as directed by the attributes. */
456 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
457 ; /* nothing to do */
458 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
459 (*info->fprintf_func) (info->stream, "%ld", value);
461 (*info->fprintf_func) (info->stream, "0x%lx", value);
464 /* Default address handler. */
467 print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
471 bfd_vma pc ATTRIBUTE_UNUSED,
472 int length ATTRIBUTE_UNUSED)
474 disassemble_info *info = (disassemble_info *) dis_info;
476 /* Print the operand as directed by the attributes. */
477 if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
478 ; /* Nothing to do. */
479 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
480 (*info->print_address_func) (value, info);
481 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
482 (*info->print_address_func) (value, info);
483 else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
484 (*info->fprintf_func) (info->stream, "%ld", (long) value);
486 (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
489 /* Keyword print handler. */
492 print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
494 CGEN_KEYWORD *keyword_table,
496 unsigned int attrs ATTRIBUTE_UNUSED)
498 disassemble_info *info = (disassemble_info *) dis_info;
499 const CGEN_KEYWORD_ENTRY *ke;
501 ke = cgen_keyword_lookup_value (keyword_table, value);
503 (*info->fprintf_func) (info->stream, "%s", ke->name);
505 (*info->fprintf_func) (info->stream, "???");
508 /* Default insn printer.
510 DIS_INFO is defined as `void *' so the disassembler needn't know anything
511 about disassemble_info. */
514 print_insn_normal (CGEN_CPU_DESC cd,
516 const CGEN_INSN *insn,
521 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
522 disassemble_info *info = (disassemble_info *) dis_info;
523 const CGEN_SYNTAX_CHAR_TYPE *syn;
525 CGEN_INIT_PRINT (cd);
527 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
529 if (CGEN_SYNTAX_MNEMONIC_P (*syn))
531 (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
534 if (CGEN_SYNTAX_CHAR_P (*syn))
536 (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
540 /* We have an operand. */
541 xc16x_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
542 fields, CGEN_INSN_ATTRS (insn), pc, length);
546 /* Subroutine of print_insn. Reads an insn into the given buffers and updates
548 Returns 0 if all is well, non-zero otherwise. */
551 read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
553 disassemble_info *info,
556 CGEN_EXTRACT_INFO *ex_info,
557 unsigned long *insn_value)
559 int status = (*info->read_memory_func) (pc, buf, buflen, info);
563 (*info->memory_error_func) (status, pc, info);
567 ex_info->dis_info = info;
568 ex_info->valid = (1 << buflen) - 1;
569 ex_info->insn_bytes = buf;
571 *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
575 /* Utility to print an insn.
576 BUF is the base part of the insn, target byte order, BUFLEN bytes long.
577 The result is the size of the insn in bytes or zero for an unknown insn
578 or -1 if an error occurs fetching data (memory_error_func will have
582 print_insn (CGEN_CPU_DESC cd,
584 disassemble_info *info,
588 CGEN_INSN_INT insn_value;
589 const CGEN_INSN_LIST *insn_list;
590 CGEN_EXTRACT_INFO ex_info;
593 /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
594 basesize = cd->base_insn_bitsize < buflen * 8 ?
595 cd->base_insn_bitsize : buflen * 8;
596 insn_value = cgen_get_insn_value (cd, buf, basesize);
599 /* Fill in ex_info fields like read_insn would. Don't actually call
600 read_insn, since the incoming buffer is already read (and possibly
601 modified a la m32r). */
602 ex_info.valid = (1 << buflen) - 1;
603 ex_info.dis_info = info;
604 ex_info.insn_bytes = buf;
606 /* The instructions are stored in hash lists.
607 Pick the first one and keep trying until we find the right one. */
609 insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
610 while (insn_list != NULL)
612 const CGEN_INSN *insn = insn_list->insn;
615 unsigned long insn_value_cropped;
617 #ifdef CGEN_VALIDATE_INSN_SUPPORTED
618 /* Not needed as insn shouldn't be in hash lists if not supported. */
619 /* Supported by this cpu? */
620 if (! xc16x_cgen_insn_supported (cd, insn))
622 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
627 /* Basic bit mask must be correct. */
628 /* ??? May wish to allow target to defer this check until the extract
631 /* Base size may exceed this instruction's size. Extract the
632 relevant part from the buffer. */
633 if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
634 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
635 insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
636 info->endian == BFD_ENDIAN_BIG);
638 insn_value_cropped = insn_value;
640 if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
641 == CGEN_INSN_BASE_VALUE (insn))
643 /* Printing is handled in two passes. The first pass parses the
644 machine insn and extracts the fields. The second pass prints
647 /* Make sure the entire insn is loaded into insn_value, if it
649 if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
650 (unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
652 unsigned long full_insn_value;
653 int rc = read_insn (cd, pc, info, buf,
654 CGEN_INSN_BITSIZE (insn) / 8,
655 & ex_info, & full_insn_value);
658 length = CGEN_EXTRACT_FN (cd, insn)
659 (cd, insn, &ex_info, full_insn_value, &fields, pc);
662 length = CGEN_EXTRACT_FN (cd, insn)
663 (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
665 /* Length < 0 -> error. */
670 CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
671 /* Length is in bits, result is in bytes. */
676 insn_list = CGEN_DIS_NEXT_INSN (insn_list);
682 /* Default value for CGEN_PRINT_INSN.
683 The result is the size of the insn in bytes or zero for an unknown insn
684 or -1 if an error occured fetching bytes. */
686 #ifndef CGEN_PRINT_INSN
687 #define CGEN_PRINT_INSN default_print_insn
691 default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
693 bfd_byte buf[CGEN_MAX_INSN_SIZE];
697 /* Attempt to read the base part of the insn. */
698 buflen = cd->base_insn_bitsize / 8;
699 status = (*info->read_memory_func) (pc, buf, buflen, info);
701 /* Try again with the minimum part, if min < base. */
702 if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
704 buflen = cd->min_insn_bitsize / 8;
705 status = (*info->read_memory_func) (pc, buf, buflen, info);
710 (*info->memory_error_func) (status, pc, info);
714 return print_insn (cd, pc, info, buf, buflen);
718 Print one instruction from PC on INFO->STREAM.
719 Return the size of the instruction (in bytes). */
721 typedef struct cpu_desc_list
723 struct cpu_desc_list *next;
731 print_insn_xc16x (bfd_vma pc, disassemble_info *info)
733 static cpu_desc_list *cd_list = 0;
734 cpu_desc_list *cl = 0;
735 static CGEN_CPU_DESC cd = 0;
736 static CGEN_BITSET *prev_isa;
737 static int prev_mach;
738 static int prev_endian;
742 int endian = (info->endian == BFD_ENDIAN_BIG
744 : CGEN_ENDIAN_LITTLE);
745 enum bfd_architecture arch;
747 /* ??? gdb will set mach but leave the architecture as "unknown" */
748 #ifndef CGEN_BFD_ARCH
749 #define CGEN_BFD_ARCH bfd_arch_xc16x
752 if (arch == bfd_arch_unknown)
753 arch = CGEN_BFD_ARCH;
755 /* There's no standard way to compute the machine or isa number
756 so we leave it to the target. */
757 #ifdef CGEN_COMPUTE_MACH
758 mach = CGEN_COMPUTE_MACH (info);
763 #ifdef CGEN_COMPUTE_ISA
765 static CGEN_BITSET *permanent_isa;
768 permanent_isa = cgen_bitset_create (MAX_ISAS);
770 cgen_bitset_clear (isa);
771 cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
774 isa = info->insn_sets;
777 /* If we've switched cpu's, try to find a handle we've used before */
779 && (cgen_bitset_compare (isa, prev_isa) != 0
781 || endian != prev_endian))
784 for (cl = cd_list; cl; cl = cl->next)
786 if (cgen_bitset_compare (cl->isa, isa) == 0 &&
788 cl->endian == endian)
797 /* If we haven't initialized yet, initialize the opcode table. */
800 const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
801 const char *mach_name;
805 mach_name = arch_type->printable_name;
807 prev_isa = cgen_bitset_copy (isa);
809 prev_endian = endian;
810 cd = xc16x_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
811 CGEN_CPU_OPEN_BFDMACH, mach_name,
812 CGEN_CPU_OPEN_ENDIAN, prev_endian,
817 /* Save this away for future reference. */
818 cl = xmalloc (sizeof (struct cpu_desc_list));
826 xc16x_cgen_init_dis (cd);
829 /* We try to have as much common code as possible.
830 But at this point some targets need to take over. */
831 /* ??? Some targets may need a hook elsewhere. Try to avoid this,
832 but if not possible try to move this hook elsewhere rather than
834 length = CGEN_PRINT_INSN (cd, pc, info);
840 (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
841 return cd->default_insn_bitsize / 8;