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-rw-r--r--opcodes/cgen-dis.in447
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diff --git a/opcodes/cgen-dis.in b/opcodes/cgen-dis.in
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--- a/opcodes/cgen-dis.in
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-/* Disassembler interface for targets using CGEN. -*- C -*-
- CGEN: Cpu tools GENerator
-
-THIS FILE IS MACHINE GENERATED WITH CGEN.
-- the resultant file is machine generated, cgen-dis.in isn't
-
-Copyright 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
-
-This file is part of the GNU Binutils and GDB, the GNU debugger.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software Foundation, Inc.,
-59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-/* ??? Eventually more and more of this stuff can go to cpu-independent files.
- Keep that in mind. */
-
-#include "sysdep.h"
-#include <stdio.h>
-#include "ansidecl.h"
-#include "dis-asm.h"
-#include "bfd.h"
-#include "symcat.h"
-#include "@prefix@-desc.h"
-#include "@prefix@-opc.h"
-#include "opintl.h"
-
-/* Default text to print if an instruction isn't recognized. */
-#define UNKNOWN_INSN_MSG _("*unknown*")
-
-static void print_normal
- PARAMS ((CGEN_CPU_DESC, PTR, long, unsigned int, bfd_vma, int));
-static void print_address
- PARAMS ((CGEN_CPU_DESC, PTR, bfd_vma, unsigned int, bfd_vma, int));
-static void print_keyword
- PARAMS ((CGEN_CPU_DESC, PTR, CGEN_KEYWORD *, long, unsigned int));
-static void print_insn_normal
- PARAMS ((CGEN_CPU_DESC, PTR, const CGEN_INSN *, CGEN_FIELDS *,
- bfd_vma, int));
-static int print_insn PARAMS ((CGEN_CPU_DESC, bfd_vma,
- disassemble_info *, char *, int));
-static int default_print_insn
- PARAMS ((CGEN_CPU_DESC, bfd_vma, disassemble_info *));
-
-/* -- disassembler routines inserted here */
-
-/* Default print handler. */
-
-static void
-print_normal (cd, dis_info, value, attrs, pc, length)
-#ifdef CGEN_PRINT_NORMAL
- CGEN_CPU_DESC cd;
-#else
- CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
-#endif
- PTR dis_info;
- long value;
- unsigned int attrs;
-#ifdef CGEN_PRINT_NORMAL
- bfd_vma pc;
- int length;
-#else
- bfd_vma pc ATTRIBUTE_UNUSED;
- int length ATTRIBUTE_UNUSED;
-#endif
-{
- disassemble_info *info = (disassemble_info *) dis_info;
-
-#ifdef CGEN_PRINT_NORMAL
- CGEN_PRINT_NORMAL (cd, info, value, attrs, pc, length);
-#endif
-
- /* Print the operand as directed by the attributes. */
- if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
- ; /* nothing to do */
- else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
- (*info->fprintf_func) (info->stream, "%ld", value);
- else
- (*info->fprintf_func) (info->stream, "0x%lx", value);
-}
-
-/* Default address handler. */
-
-static void
-print_address (cd, dis_info, value, attrs, pc, length)
-#ifdef CGEN_PRINT_NORMAL
- CGEN_CPU_DESC cd;
-#else
- CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
-#endif
- PTR dis_info;
- bfd_vma value;
- unsigned int attrs;
-#ifdef CGEN_PRINT_NORMAL
- bfd_vma pc;
- int length;
-#else
- bfd_vma pc ATTRIBUTE_UNUSED;
- int length ATTRIBUTE_UNUSED;
-#endif
-{
- disassemble_info *info = (disassemble_info *) dis_info;
-
-#ifdef CGEN_PRINT_ADDRESS
- CGEN_PRINT_ADDRESS (cd, info, value, attrs, pc, length);
-#endif
-
- /* Print the operand as directed by the attributes. */
- if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
- ; /* nothing to do */
- else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
- (*info->print_address_func) (value, info);
- else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
- (*info->print_address_func) (value, info);
- else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
- (*info->fprintf_func) (info->stream, "%ld", (long) value);
- else
- (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
-}
-
-/* Keyword print handler. */
-
-static void
-print_keyword (cd, dis_info, keyword_table, value, attrs)
- CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
- PTR dis_info;
- CGEN_KEYWORD *keyword_table;
- long value;
- unsigned int attrs ATTRIBUTE_UNUSED;
-{
- disassemble_info *info = (disassemble_info *) dis_info;
- const CGEN_KEYWORD_ENTRY *ke;
-
- ke = cgen_keyword_lookup_value (keyword_table, value);
- if (ke != NULL)
- (*info->fprintf_func) (info->stream, "%s", ke->name);
- else
- (*info->fprintf_func) (info->stream, "???");
-}
-
-/* Default insn printer.
-
- DIS_INFO is defined as `PTR' so the disassembler needn't know anything
- about disassemble_info. */
-
-static void
-print_insn_normal (cd, dis_info, insn, fields, pc, length)
- CGEN_CPU_DESC cd;
- PTR dis_info;
- const CGEN_INSN *insn;
- CGEN_FIELDS *fields;
- bfd_vma pc;
- int length;
-{
- const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
- disassemble_info *info = (disassemble_info *) dis_info;
- const CGEN_SYNTAX_CHAR_TYPE *syn;
-
- CGEN_INIT_PRINT (cd);
-
- for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
- {
- if (CGEN_SYNTAX_MNEMONIC_P (*syn))
- {
- (*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
- continue;
- }
- if (CGEN_SYNTAX_CHAR_P (*syn))
- {
- (*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
- continue;
- }
-
- /* We have an operand. */
- @arch@_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
- fields, CGEN_INSN_ATTRS (insn), pc, length);
- }
-}
-
-/* Subroutine of print_insn. Reads an insn into the given buffers and updates
- the extract info.
- Returns 0 if all is well, non-zero otherwise. */
-static int
-read_insn (cd, pc, info, buf, buflen, ex_info, insn_value)
- CGEN_CPU_DESC cd;
- bfd_vma pc;
- disassemble_info *info;
- char *buf;
- int buflen;
- CGEN_EXTRACT_INFO *ex_info;
- unsigned long *insn_value;
-{
- int status = (*info->read_memory_func) (pc, buf, buflen, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, pc, info);
- return -1;
- }
-
- ex_info->dis_info = info;
- ex_info->valid = (1 << buflen) - 1;
- ex_info->insn_bytes = buf;
-
- *insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
- return 0;
-}
-
-/* Utility to print an insn.
- BUF is the base part of the insn, target byte order, BUFLEN bytes long.
- The result is the size of the insn in bytes or zero for an unknown insn
- or -1 if an error occurs fetching data (memory_error_func will have
- been called). */
-
-static int
-print_insn (cd, pc, info, buf, buflen)
- CGEN_CPU_DESC cd;
- bfd_vma pc;
- disassemble_info *info;
- char *buf;
- int buflen;
-{
- unsigned long insn_value;
- const CGEN_INSN_LIST *insn_list;
- CGEN_EXTRACT_INFO ex_info;
-
- /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
- insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
-
- /* Fill in ex_info fields like read_insn would. Don't actually call
- read_insn, since the incoming buffer is already read (and possibly
- modified a la m32r). */
- ex_info.valid = (1 << buflen) - 1;
- ex_info.dis_info = info;
- ex_info.insn_bytes = buf;
-
- /* The instructions are stored in hash lists.
- Pick the first one and keep trying until we find the right one. */
-
- insn_list = CGEN_DIS_LOOKUP_INSN (cd, buf, insn_value);
- while (insn_list != NULL)
- {
- const CGEN_INSN *insn = insn_list->insn;
- CGEN_FIELDS fields;
- int length;
- unsigned long insn_value_cropped;
-
-#ifdef CGEN_VALIDATE_INSN_SUPPORTED
- /* not needed as insn shouldn't be in hash lists if not supported */
- /* Supported by this cpu? */
- if (! @arch@_cgen_insn_supported (cd, insn))
- {
- insn_list = CGEN_DIS_NEXT_INSN (insn_list);
- continue;
- }
-#endif
-
- /* Basic bit mask must be correct. */
- /* ??? May wish to allow target to defer this check until the extract
- handler. */
-
- /* Base size may exceed this instruction's size. Extract the
- relevant part from the buffer. */
- if ((CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
- (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
- insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
- info->endian == BFD_ENDIAN_BIG);
- else
- insn_value_cropped = insn_value;
-
- if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
- == CGEN_INSN_BASE_VALUE (insn))
- {
- /* Printing is handled in two passes. The first pass parses the
- machine insn and extracts the fields. The second pass prints
- them. */
-
- /* Make sure the entire insn is loaded into insn_value, if it
- can fit. */
- if (CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize &&
- (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
- {
- unsigned long full_insn_value;
- int rc = read_insn (cd, pc, info, buf,
- CGEN_INSN_BITSIZE (insn) / 8,
- & ex_info, & full_insn_value);
- if (rc != 0)
- return rc;
- length = CGEN_EXTRACT_FN (cd, insn)
- (cd, insn, &ex_info, full_insn_value, &fields, pc);
- }
- else
- length = CGEN_EXTRACT_FN (cd, insn)
- (cd, insn, &ex_info, insn_value_cropped, &fields, pc);
-
- /* length < 0 -> error */
- if (length < 0)
- return length;
- if (length > 0)
- {
- CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
- /* length is in bits, result is in bytes */
- return length / 8;
- }
- }
-
- insn_list = CGEN_DIS_NEXT_INSN (insn_list);
- }
-
- return 0;
-}
-
-/* Default value for CGEN_PRINT_INSN.
- The result is the size of the insn in bytes or zero for an unknown insn
- or -1 if an error occured fetching bytes. */
-
-#ifndef CGEN_PRINT_INSN
-#define CGEN_PRINT_INSN default_print_insn
-#endif
-
-static int
-default_print_insn (cd, pc, info)
- CGEN_CPU_DESC cd;
- bfd_vma pc;
- disassemble_info *info;
-{
- char buf[CGEN_MAX_INSN_SIZE];
- int buflen;
- int status;
-
- /* Attempt to read the base part of the insn. */
- buflen = cd->base_insn_bitsize / 8;
- status = (*info->read_memory_func) (pc, buf, buflen, info);
-
- /* Try again with the minimum part, if min < base. */
- if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
- {
- buflen = cd->min_insn_bitsize / 8;
- status = (*info->read_memory_func) (pc, buf, buflen, info);
- }
-
- if (status != 0)
- {
- (*info->memory_error_func) (status, pc, info);
- return -1;
- }
-
- return print_insn (cd, pc, info, buf, buflen);
-}
-
-/* Main entry point.
- Print one instruction from PC on INFO->STREAM.
- Return the size of the instruction (in bytes). */
-
-int
-print_insn_@arch@ (pc, info)
- bfd_vma pc;
- disassemble_info *info;
-{
- static CGEN_CPU_DESC cd = 0;
- static int prev_isa;
- static int prev_mach;
- static int prev_endian;
- int length;
- int isa,mach;
- int endian = (info->endian == BFD_ENDIAN_BIG
- ? CGEN_ENDIAN_BIG
- : CGEN_ENDIAN_LITTLE);
- enum bfd_architecture arch;
-
- /* ??? gdb will set mach but leave the architecture as "unknown" */
-#ifndef CGEN_BFD_ARCH
-#define CGEN_BFD_ARCH bfd_arch_@arch@
-#endif
- arch = info->arch;
- if (arch == bfd_arch_unknown)
- arch = CGEN_BFD_ARCH;
-
- /* There's no standard way to compute the machine or isa number
- so we leave it to the target. */
-#ifdef CGEN_COMPUTE_MACH
- mach = CGEN_COMPUTE_MACH (info);
-#else
- mach = info->mach;
-#endif
-
-#ifdef CGEN_COMPUTE_ISA
- isa = CGEN_COMPUTE_ISA (info);
-#else
- isa = 0;
-#endif
-
- /* If we've switched cpu's, close the current table and open a new one. */
- if (cd
- && (isa != prev_isa
- || mach != prev_mach
- || endian != prev_endian))
- {
- @arch@_cgen_cpu_close (cd);
- cd = 0;
- }
-
- /* If we haven't initialized yet, initialize the opcode table. */
- if (! cd)
- {
- const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
- const char *mach_name;
-
- if (!arch_type)
- abort ();
- mach_name = arch_type->printable_name;
-
- prev_isa = isa;
- prev_mach = mach;
- prev_endian = endian;
- cd = @arch@_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
- CGEN_CPU_OPEN_BFDMACH, mach_name,
- CGEN_CPU_OPEN_ENDIAN, prev_endian,
- CGEN_CPU_OPEN_END);
- if (!cd)
- abort ();
- @arch@_cgen_init_dis (cd);
- }
-
- /* We try to have as much common code as possible.
- But at this point some targets need to take over. */
- /* ??? Some targets may need a hook elsewhere. Try to avoid this,
- but if not possible try to move this hook elsewhere rather than
- have two hooks. */
- length = CGEN_PRINT_INSN (cd, pc, info);
- if (length > 0)
- return length;
- if (length < 0)
- return -1;
-
- (*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
- return cd->default_insn_bitsize / 8;
-}