+/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
/* Disassembler interface for targets using CGEN. -*- C -*-
CGEN: Cpu tools GENerator
-THIS FILE IS USED TO GENERATE fr30-dis.c.
+ THIS FILE IS MACHINE GENERATED WITH CGEN.
+ - the resultant file is machine generated, cgen-dis.in isn't
-Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1996-2021 Free Software Foundation, Inc.
-This file is part of the GNU Binutils and GDB, the GNU debugger.
+ This file is part of libopcodes.
-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 library 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 3, 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.
+ It 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. */
+ 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.,
+ 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 "disassemble.h"
#include "bfd.h"
#include "symcat.h"
+#include "libiberty.h"
+#include "fr30-desc.h"
#include "fr30-opc.h"
#include "opintl.h"
-#undef INLINE
-#ifdef __GNUC__
-#define INLINE __inline__
-#else
-#define INLINE
-#endif
-
/* Default text to print if an instruction isn't recognized. */
#define UNKNOWN_INSN_MSG _("*unknown*")
-/* Used by the ifield rtx function. */
-#define FLD(f) (fields->f)
-
-static int extract_normal
- PARAMS ((CGEN_OPCODE_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
- unsigned int, unsigned int, unsigned int, unsigned int,
- unsigned int, unsigned int, bfd_vma, long *));
static void print_normal
- PARAMS ((CGEN_OPCODE_DESC, PTR, long, unsigned int, bfd_vma, int));
+ (CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
static void print_address
- PARAMS ((CGEN_OPCODE_DESC, PTR, bfd_vma, unsigned int, bfd_vma, int));
+ (CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
static void print_keyword
- PARAMS ((CGEN_OPCODE_DESC, PTR, CGEN_KEYWORD *, long, unsigned int));
-static int extract_insn_normal
- PARAMS ((CGEN_OPCODE_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
- CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma));
+ (CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
static void print_insn_normal
- PARAMS ((CGEN_OPCODE_DESC, PTR, const CGEN_INSN *, CGEN_FIELDS *,
- bfd_vma, int));
-static int print_insn PARAMS ((CGEN_OPCODE_DESC, bfd_vma,
- disassemble_info *, char *, int));
+ (CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
+static int print_insn
+ (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
static int default_print_insn
- PARAMS ((CGEN_OPCODE_DESC, bfd_vma, disassemble_info *));
+ (CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
+static int read_insn
+ (CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
+ unsigned long *);
\f
-/* -- disassembler routines inserted here */
-/* -- dis.c */
+/* -- disassembler routines inserted here. */
+/* -- dis.c */
static void
-print_register_list (dis_info, value, offset)
- PTR dis_info;
- long value;
- long offset;
+print_register_list (void * dis_info,
+ long value,
+ long offset,
+ int load_store) /* 0 == load, 1 == store. */
{
disassemble_info *info = dis_info;
- int mask = 1;
- int index = 0;
+ int mask;
+ int reg_index = 0;
+ char * comma = "";
+
+ if (load_store)
+ mask = 0x80;
+ else
+ mask = 1;
if (value & mask)
- (*info->fprintf_func) (info->stream, "r%i", index + offset);
+ {
+ (*info->fprintf_func) (info->stream, "r%li", reg_index + offset);
+ comma = ",";
+ }
- for (index = 1; index <= 7; ++index)
+ for (reg_index = 1; reg_index <= 7; ++reg_index)
{
- mask <<= 1;
+ if (load_store)
+ mask >>= 1;
+ else
+ mask <<= 1;
+
if (value & mask)
- (*info->fprintf_func) (info->stream, ",r%i", index + offset);
+ {
+ (*info->fprintf_func) (info->stream, "%sr%li", comma, reg_index + offset);
+ comma = ",";
+ }
}
}
static void
-print_hi_register_list (od, dis_info, value, attrs, pc, length)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- long value;
- unsigned int attrs;
- bfd_vma pc;
- int length;
+print_hi_register_list_ld (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void * dis_info,
+ long value,
+ unsigned int attrs ATTRIBUTE_UNUSED,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
{
- print_register_list (dis_info, value, 8);
+ print_register_list (dis_info, value, 8, 0 /* Load. */);
}
static void
-print_low_register_list (od, dis_info, value, attrs, pc, length)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- long value;
- unsigned int attrs;
- bfd_vma pc;
- int length;
+print_low_register_list_ld (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void * dis_info,
+ long value,
+ unsigned int attrs ATTRIBUTE_UNUSED,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
{
- print_register_list (dis_info, value, 0);
+ print_register_list (dis_info, value, 0, 0 /* Load. */);
}
static void
-print_m4 (od, dis_info, value, attrs, pc, length)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- long value;
- unsigned int attrs;
- bfd_vma pc;
- int length;
+print_hi_register_list_st (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void * dis_info,
+ long value,
+ unsigned int attrs ATTRIBUTE_UNUSED,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
+{
+ print_register_list (dis_info, value, 8, 1 /* Store. */);
+}
+
+static void
+print_low_register_list_st (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void * dis_info,
+ long value,
+ unsigned int attrs ATTRIBUTE_UNUSED,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
+{
+ print_register_list (dis_info, value, 0, 1 /* Store. */);
+}
+
+static void
+print_m4 (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void * dis_info,
+ long value,
+ unsigned int attrs ATTRIBUTE_UNUSED,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
+
(*info->fprintf_func) (info->stream, "%ld", value);
}
/* -- */
-/* Main entry point for operand extraction.
+void fr30_cgen_print_operand
+ (CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
+
+/* Main entry point for printing operands.
+ XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
+ of dis-asm.h on cgen.h.
This function is basically just a big switch statement. Earlier versions
used tables to look up the function to use, but
This function could be moved into `print_insn_normal', but keeping it
separate makes clear the interface between `print_insn_normal' and each of
- the handlers.
-*/
+ the handlers. */
-int
-fr30_cgen_extract_operand (od, opindex, ex_info, insn_value, fields, pc)
- CGEN_OPCODE_DESC od;
- int opindex;
- CGEN_EXTRACT_INFO *ex_info;
- CGEN_INSN_INT insn_value;
- CGEN_FIELDS * fields;
- bfd_vma pc;
+void
+fr30_cgen_print_operand (CGEN_CPU_DESC cd,
+ int opindex,
+ void * xinfo,
+ CGEN_FIELDS *fields,
+ void const *attrs ATTRIBUTE_UNUSED,
+ bfd_vma pc,
+ int length)
{
- int length;
- unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
+ disassemble_info *info = (disassemble_info *) xinfo;
switch (opindex)
{
- case FR30_OPERAND_RI :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 12, 4, 16, total_length, pc, & fields->f_Ri);
- break;
- case FR30_OPERAND_RJ :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 4, 16, total_length, pc, & fields->f_Rj);
- break;
- case FR30_OPERAND_RIC :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 16, 12, 4, 16, total_length, pc, & fields->f_Ric);
- break;
- case FR30_OPERAND_RJC :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 16, 8, 4, 16, total_length, pc, & fields->f_Rjc);
- break;
case FR30_OPERAND_CRI :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 16, 12, 4, 16, total_length, pc, & fields->f_CRi);
+ print_keyword (cd, info, & fr30_cgen_opval_cr_names, fields->f_CRi, 0);
break;
case FR30_OPERAND_CRJ :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 16, 8, 4, 16, total_length, pc, & fields->f_CRj);
- break;
- case FR30_OPERAND_RS1 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 4, 16, total_length, pc, & fields->f_Rs1);
- break;
- case FR30_OPERAND_RS2 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 12, 4, 16, total_length, pc, & fields->f_Rs2);
+ print_keyword (cd, info, & fr30_cgen_opval_cr_names, fields->f_CRj, 0);
break;
case FR30_OPERAND_R13 :
- length = extract_normal (od, ex_info, insn_value, 0, 0, 0, 0, 0, total_length, pc, & fields->f_nil);
+ print_keyword (cd, info, & fr30_cgen_opval_h_r13, 0, 0);
break;
case FR30_OPERAND_R14 :
- length = extract_normal (od, ex_info, insn_value, 0, 0, 0, 0, 0, total_length, pc, & fields->f_nil);
+ print_keyword (cd, info, & fr30_cgen_opval_h_r14, 0, 0);
break;
case FR30_OPERAND_R15 :
- length = extract_normal (od, ex_info, insn_value, 0, 0, 0, 0, 0, total_length, pc, & fields->f_nil);
- break;
- case FR30_OPERAND_PS :
- length = extract_normal (od, ex_info, insn_value, 0, 0, 0, 0, 0, total_length, pc, & fields->f_nil);
- break;
- case FR30_OPERAND_U4 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 4, 16, total_length, pc, & fields->f_u4);
- break;
- case FR30_OPERAND_U4C :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 0, 12, 4, 16, total_length, pc, & fields->f_u4c);
- break;
- case FR30_OPERAND_U8 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & fields->f_u8);
- break;
- case FR30_OPERAND_I8 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 0, 4, 8, 16, total_length, pc, & fields->f_i8);
+ print_keyword (cd, info, & fr30_cgen_opval_h_r15, 0, 0);
break;
- case FR30_OPERAND_UDISP6 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 4, 16, total_length, pc, & value);
- value = ((value) << (2));
- fields->f_udisp6 = value;
- }
+ case FR30_OPERAND_RI :
+ print_keyword (cd, info, & fr30_cgen_opval_gr_names, fields->f_Ri, 0);
break;
- case FR30_OPERAND_DISP8 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), 0, 4, 8, 16, total_length, pc, & fields->f_disp8);
+ case FR30_OPERAND_RIC :
+ print_keyword (cd, info, & fr30_cgen_opval_gr_names, fields->f_Ric, 0);
break;
- case FR30_OPERAND_DISP9 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), 0, 4, 8, 16, total_length, pc, & value);
- value = ((value) << (1));
- fields->f_disp9 = value;
- }
+ case FR30_OPERAND_RJ :
+ print_keyword (cd, info, & fr30_cgen_opval_gr_names, fields->f_Rj, 0);
break;
- case FR30_OPERAND_DISP10 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), 0, 4, 8, 16, total_length, pc, & value);
- value = ((value) << (2));
- fields->f_disp10 = value;
- }
+ case FR30_OPERAND_RJC :
+ print_keyword (cd, info, & fr30_cgen_opval_gr_names, fields->f_Rjc, 0);
break;
- case FR30_OPERAND_S10 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), 0, 8, 8, 16, total_length, pc, & value);
- value = ((value) << (2));
- fields->f_s10 = value;
- }
+ case FR30_OPERAND_RS1 :
+ print_keyword (cd, info, & fr30_cgen_opval_dr_names, fields->f_Rs1, 0);
break;
- case FR30_OPERAND_U10 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & value);
- value = ((value) << (2));
- fields->f_u10 = value;
- }
+ case FR30_OPERAND_RS2 :
+ print_keyword (cd, info, & fr30_cgen_opval_dr_names, fields->f_Rs2, 0);
break;
- case FR30_OPERAND_I32 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGN_OPT)|(1<<CGEN_OPERAND_UNSIGNED), 16, 0, 32, 32, total_length, pc, & fields->f_i32);
+ case FR30_OPERAND_CC :
+ print_normal (cd, info, fields->f_cc, 0, pc, length);
break;
- case FR30_OPERAND_M4 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 4, 16, total_length, pc, & value);
- value = ((value) | (((-1) << (4))));
- fields->f_m4 = value;
- }
+ case FR30_OPERAND_CCC :
+ print_normal (cd, info, fields->f_ccc, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_I20 :
- {
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED)|(1<<CGEN_OPERAND_VIRTUAL), 0, 8, 4, 16, total_length, pc, & fields->f_i20_4);
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED)|(1<<CGEN_OPERAND_VIRTUAL), 16, 0, 16, 16, total_length, pc, & fields->f_i20_16);
-do {
- FLD (f_i20) = ((((FLD (f_i20_4)) << (16))) | (FLD (f_i20_16)));
-} while (0);
- }
+ case FR30_OPERAND_DIR10 :
+ print_normal (cd, info, fields->f_dir10, 0, pc, length);
break;
case FR30_OPERAND_DIR8 :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & fields->f_dir8);
+ print_normal (cd, info, fields->f_dir8, 0, pc, length);
break;
case FR30_OPERAND_DIR9 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & value);
- value = ((value) << (1));
- fields->f_dir9 = value;
- }
- break;
- case FR30_OPERAND_DIR10 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & value);
- value = ((value) << (2));
- fields->f_dir10 = value;
- }
- break;
- case FR30_OPERAND_LABEL9 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_SIGNED), 0, 8, 8, 16, total_length, pc, & value);
- value = ((((value) << (1))) + (((pc) + (2))));
- fields->f_rel9 = value;
- }
- break;
- case FR30_OPERAND_LABEL12 :
- {
- long value;
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_SIGNED), 0, 5, 11, 16, total_length, pc, & value);
- value = ((((value) << (1))) + (((pc) + (2))));
- fields->f_rel12 = value;
- }
+ print_normal (cd, info, fields->f_dir9, 0, pc, length);
break;
- case FR30_OPERAND_REGLIST_LOW :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & fields->f_reglist_low);
+ case FR30_OPERAND_DISP10 :
+ print_normal (cd, info, fields->f_disp10, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_REGLIST_HI :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 8, 8, 16, total_length, pc, & fields->f_reglist_hi);
+ case FR30_OPERAND_DISP8 :
+ print_normal (cd, info, fields->f_disp8, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_CC :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_UNSIGNED), 0, 4, 4, 16, total_length, pc, & fields->f_cc);
+ case FR30_OPERAND_DISP9 :
+ print_normal (cd, info, fields->f_disp9, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_CCC :
- length = extract_normal (od, ex_info, insn_value, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), 16, 0, 8, 16, total_length, pc, & fields->f_ccc);
+ case FR30_OPERAND_I20 :
+ print_normal (cd, info, fields->f_i20, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
break;
-
- default :
- /* xgettext:c-format */
- fprintf (stderr, _("Unrecognized field %d while decoding insn.\n"),
- opindex);
- abort ();
- }
-
- return length;
-}
-
-/* Main entry point for printing operands.
-
- This function is basically just a big switch statement. Earlier versions
- used tables to look up the function to use, but
- - if the table contains both assembler and disassembler functions then
- the disassembler contains much of the assembler and vice-versa,
- - there's a lot of inlining possibilities as things grow,
- - using a switch statement avoids the function call overhead.
-
- This function could be moved into `print_insn_normal', but keeping it
- separate makes clear the interface between `print_insn_normal' and each of
- the handlers.
-*/
-
-void
-fr30_cgen_print_operand (od, opindex, info, fields, attrs, pc, length)
- CGEN_OPCODE_DESC od;
- int opindex;
- disassemble_info * info;
- CGEN_FIELDS * fields;
- void const * attrs;
- bfd_vma pc;
- int length;
-{
- switch (opindex)
- {
- case FR30_OPERAND_RI :
- print_keyword (od, info, & fr30_cgen_opval_h_gr, fields->f_Ri, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_I32 :
+ print_normal (cd, info, fields->f_i32, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGN_OPT), pc, length);
break;
- case FR30_OPERAND_RJ :
- print_keyword (od, info, & fr30_cgen_opval_h_gr, fields->f_Rj, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_I8 :
+ print_normal (cd, info, fields->f_i8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_RIC :
- print_keyword (od, info, & fr30_cgen_opval_h_gr, fields->f_Ric, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_LABEL12 :
+ print_address (cd, info, fields->f_rel12, 0|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
break;
- case FR30_OPERAND_RJC :
- print_keyword (od, info, & fr30_cgen_opval_h_gr, fields->f_Rjc, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_LABEL9 :
+ print_address (cd, info, fields->f_rel9, 0|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
break;
- case FR30_OPERAND_CRI :
- print_keyword (od, info, & fr30_cgen_opval_h_cr, fields->f_CRi, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_M4 :
+ print_m4 (cd, info, fields->f_m4, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_CRJ :
- print_keyword (od, info, & fr30_cgen_opval_h_cr, fields->f_CRj, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_PS :
+ print_keyword (cd, info, & fr30_cgen_opval_h_ps, 0, 0);
break;
- case FR30_OPERAND_RS1 :
- print_keyword (od, info, & fr30_cgen_opval_h_dr, fields->f_Rs1, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_REGLIST_HI_LD :
+ print_hi_register_list_ld (cd, info, fields->f_reglist_hi_ld, 0, pc, length);
break;
- case FR30_OPERAND_RS2 :
- print_keyword (od, info, & fr30_cgen_opval_h_dr, fields->f_Rs2, 0|(1<<CGEN_OPERAND_UNSIGNED));
+ case FR30_OPERAND_REGLIST_HI_ST :
+ print_hi_register_list_st (cd, info, fields->f_reglist_hi_st, 0, pc, length);
break;
- case FR30_OPERAND_R13 :
- print_keyword (od, info, & fr30_cgen_opval_h_r13, fields->f_nil, 0);
+ case FR30_OPERAND_REGLIST_LOW_LD :
+ print_low_register_list_ld (cd, info, fields->f_reglist_low_ld, 0, pc, length);
break;
- case FR30_OPERAND_R14 :
- print_keyword (od, info, & fr30_cgen_opval_h_r14, fields->f_nil, 0);
+ case FR30_OPERAND_REGLIST_LOW_ST :
+ print_low_register_list_st (cd, info, fields->f_reglist_low_st, 0, pc, length);
break;
- case FR30_OPERAND_R15 :
- print_keyword (od, info, & fr30_cgen_opval_h_r15, fields->f_nil, 0);
+ case FR30_OPERAND_S10 :
+ print_normal (cd, info, fields->f_s10, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
- case FR30_OPERAND_PS :
- print_keyword (od, info, & fr30_cgen_opval_h_ps, fields->f_nil, 0);
+ case FR30_OPERAND_U10 :
+ print_normal (cd, info, fields->f_u10, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
case FR30_OPERAND_U4 :
- print_normal (od, info, fields->f_u4, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
+ print_normal (cd, info, fields->f_u4, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
case FR30_OPERAND_U4C :
- print_normal (od, info, fields->f_u4c, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
+ print_normal (cd, info, fields->f_u4c, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
case FR30_OPERAND_U8 :
- print_normal (od, info, fields->f_u8, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_I8 :
- print_normal (od, info, fields->f_i8, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
+ print_normal (cd, info, fields->f_u8, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
case FR30_OPERAND_UDISP6 :
- print_normal (od, info, fields->f_udisp6, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_DISP8 :
- print_normal (od, info, fields->f_disp8, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), pc, length);
- break;
- case FR30_OPERAND_DISP9 :
- print_normal (od, info, fields->f_disp9, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), pc, length);
- break;
- case FR30_OPERAND_DISP10 :
- print_normal (od, info, fields->f_disp10, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), pc, length);
- break;
- case FR30_OPERAND_S10 :
- print_normal (od, info, fields->f_s10, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGNED), pc, length);
- break;
- case FR30_OPERAND_U10 :
- print_normal (od, info, fields->f_u10, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_I32 :
- print_normal (od, info, fields->f_i32, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_SIGN_OPT)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_M4 :
- print_m4 (od, info, fields->f_m4, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_I20 :
- print_normal (od, info, fields->f_i20, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
- break;
- case FR30_OPERAND_DIR8 :
- print_normal (od, info, fields->f_dir8, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_DIR9 :
- print_normal (od, info, fields->f_dir9, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_DIR10 :
- print_normal (od, info, fields->f_dir10, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_LABEL9 :
- print_address (od, info, fields->f_rel9, 0|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_SIGNED), pc, length);
- break;
- case FR30_OPERAND_LABEL12 :
- print_address (od, info, fields->f_rel12, 0|(1<<CGEN_OPERAND_PCREL_ADDR)|(1<<CGEN_OPERAND_SIGNED), pc, length);
- break;
- case FR30_OPERAND_REGLIST_LOW :
- print_low_register_list (od, info, fields->f_reglist_low, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_REGLIST_HI :
- print_hi_register_list (od, info, fields->f_reglist_hi, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_CC :
- print_normal (od, info, fields->f_cc, 0|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
- break;
- case FR30_OPERAND_CCC :
- print_normal (od, info, fields->f_ccc, 0|(1<<CGEN_OPERAND_HASH_PREFIX)|(1<<CGEN_OPERAND_UNSIGNED), pc, length);
+ print_normal (cd, info, fields->f_udisp6, 0|(1<<CGEN_OPERAND_HASH_PREFIX), pc, length);
break;
default :
/* xgettext:c-format */
- fprintf (stderr, _("Unrecognized field %d while printing insn.\n"),
- opindex);
- abort ();
+ opcodes_error_handler
+ (_("internal error: unrecognized field %d while printing insn"),
+ opindex);
+ abort ();
}
}
-cgen_extract_fn * const fr30_cgen_extract_handlers[] =
+cgen_print_fn * const fr30_cgen_print_handlers[] =
{
- 0, /* default */
- extract_insn_normal,
-};
-
-cgen_print_fn * const fr30_cgen_print_handlers[] =
-{
- 0, /* default */
print_insn_normal,
};
void
-fr30_cgen_init_dis (od)
- CGEN_OPCODE_DESC od;
+fr30_cgen_init_dis (CGEN_CPU_DESC cd)
{
+ fr30_cgen_init_opcode_table (cd);
+ fr30_cgen_init_ibld_table (cd);
+ cd->print_handlers = & fr30_cgen_print_handlers[0];
+ cd->print_operand = fr30_cgen_print_operand;
}
\f
-#if ! CGEN_INT_INSN_P
-
-/* Subroutine of extract_normal.
- Ensure sufficient bytes are cached in EX_INFO.
- OFFSET is the offset in bytes from the start of the insn of the value.
- BYTES is the length of the needed value.
- Returns 1 for success, 0 for failure. */
-
-static INLINE int
-fill_cache (od, ex_info, offset, bytes, pc)
- CGEN_OPCODE_DESC od;
- CGEN_EXTRACT_INFO *ex_info;
- int offset, bytes;
- bfd_vma pc;
-{
- /* It's doubtful that the middle part has already been fetched so
- we don't optimize that case. kiss. */
- int mask;
- disassemble_info *info = (disassemble_info *) ex_info->dis_info;
-
- /* First do a quick check. */
- mask = (1 << bytes) - 1;
- if (((ex_info->valid >> offset) & mask) == mask)
- return 1;
-
- /* Search for the first byte we need to read. */
- for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
- if (! (mask & ex_info->valid))
- break;
-
- if (bytes)
- {
- int status;
-
- pc += offset;
- status = (*info->read_memory_func)
- (pc, ex_info->insn_bytes + offset, bytes, info);
-
- if (status != 0)
- {
- (*info->memory_error_func) (status, pc, info);
- return 0;
- }
-
- ex_info->valid |= ((1 << bytes) - 1) << offset;
- }
-
- return 1;
-}
-
-/* Subroutine of extract_normal. */
-
-static INLINE long
-extract_1 (od, ex_info, start, length, word_length, bufp, pc)
- CGEN_OPCODE_DESC od;
- CGEN_EXTRACT_INFO *ex_info;
- int start,length,word_length;
- unsigned char *bufp;
- bfd_vma pc;
-{
- unsigned long x,mask;
- int shift;
- int big_p = CGEN_OPCODE_INSN_ENDIAN (od) == CGEN_ENDIAN_BIG;
-
- switch (word_length)
- {
- case 8:
- x = *bufp;
- break;
- case 16:
- if (big_p)
- x = bfd_getb16 (bufp);
- else
- x = bfd_getl16 (bufp);
- break;
- case 24:
- /* ??? This may need reworking as these cases don't necessarily
- want the first byte and the last two bytes handled like this. */
- if (big_p)
- x = (bufp[0] << 16) | bfd_getb16 (bufp + 1);
- else
- x = bfd_getl16 (bufp) | (bufp[2] << 16);
- break;
- case 32:
- if (big_p)
- x = bfd_getb32 (bufp);
- else
- x = bfd_getl32 (bufp);
- break;
- default :
- abort ();
- }
-
- /* Written this way to avoid undefined behaviour. */
- mask = (((1L << (length - 1)) - 1) << 1) | 1;
- if (CGEN_INSN_LSB0_P)
- shift = (start + 1) - length;
- else
- shift = (word_length - (start + length));
- return (x >> shift) & mask;
-}
-
-#endif /* ! CGEN_INT_INSN_P */
-
-/* Default extraction routine.
-
- INSN_VALUE is the first CGEN_BASE_INSN_SIZE bits of the insn in host order,
- or sometimes less for cases like the m32r where the base insn size is 32
- but some insns are 16 bits.
- ATTRS is a mask of the boolean attributes. We only need `UNSIGNED',
- but for generality we take a bitmask of all of them.
- WORD_OFFSET is the offset in bits from the start of the insn of the value.
- WORD_LENGTH is the length of the word in bits in which the value resides.
- START is the starting bit number in the word, architecture origin.
- LENGTH is the length of VALUE in bits.
- TOTAL_LENGTH is the total length of the insn in bits.
-
- Returns 1 for success, 0 for failure. */
-
-/* ??? The return code isn't properly used. wip. */
-
-/* ??? This doesn't handle bfd_vma's. Create another function when
- necessary. */
-
-static int
-extract_normal (od, ex_info, insn_value, attrs, word_offset, start, length,
- word_length, total_length, pc, valuep)
- CGEN_OPCODE_DESC od;
- CGEN_EXTRACT_INFO *ex_info;
- CGEN_INSN_INT insn_value;
- unsigned int attrs;
- unsigned int word_offset, start, length, word_length, total_length;
- bfd_vma pc;
- long *valuep;
-{
- CGEN_INSN_INT value;
-
- /* If LENGTH is zero, this operand doesn't contribute to the value
- so give it a standard value of zero. */
- if (length == 0)
- {
- *valuep = 0;
- return 1;
- }
-
- if (CGEN_INT_INSN_P
- && word_offset != 0)
- abort ();
-
- if (word_length > 32)
- abort ();
-
- /* For architectures with insns smaller than the insn-base-bitsize,
- word_length may be too big. */
-#if CGEN_MIN_INSN_BITSIZE < CGEN_BASE_INSN_BITSIZE
- if (word_offset == 0
- && word_length > total_length)
- word_length = total_length;
-#endif
-
- /* Does the value reside in INSN_VALUE? */
-
- if (word_offset == 0)
- {
- /* Written this way to avoid undefined behaviour. */
- CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
-
- if (CGEN_INSN_LSB0_P)
- value = insn_value >> ((start + 1) - length);
- else
- value = insn_value >> (word_length - (start + length));
- value &= mask;
- /* sign extend? */
- if (! (attrs & CGEN_ATTR_MASK (CGEN_OPERAND_UNSIGNED))
- && (value & (1L << (length - 1))))
- value |= ~mask;
- }
-
-#if ! CGEN_INT_INSN_P
-
- else
- {
- unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
-
- if (word_length > 32)
- abort ();
-
- if (fill_cache (od, ex_info, word_offset / 8, word_length / 8, pc) == 0)
- return 0;
-
- value = extract_1 (od, ex_info, start, length, word_length, bufp, pc);
- }
-
-#endif /* ! CGEN_INT_INSN_P */
-
- *valuep = value;
-
- return 1;
-}
-
/* Default print handler. */
static void
-print_normal (od, dis_info, value, attrs, pc, length)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- long value;
- unsigned int attrs;
- bfd_vma pc;
- int length;
+print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void *dis_info,
+ long value,
+ unsigned int attrs,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
-#ifdef CGEN_PRINT_NORMAL
- CGEN_PRINT_NORMAL (od, 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_UNSIGNED))
- (*info->fprintf_func) (info->stream, "0x%lx", value);
- else
+ 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 (od, dis_info, value, attrs, pc, length)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- bfd_vma value;
- unsigned int attrs;
- bfd_vma pc;
- int length;
+print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void *dis_info,
+ bfd_vma value,
+ unsigned int attrs,
+ bfd_vma pc ATTRIBUTE_UNUSED,
+ int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
-#ifdef CGEN_PRINT_ADDRESS
- CGEN_PRINT_ADDRESS (od, 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 */
+ ; /* 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_UNSIGNED))
- (*info->fprintf_func) (info->stream, "0x%lx", (long) value);
- else
+ 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 (od, dis_info, keyword_table, value, attrs)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- CGEN_KEYWORD *keyword_table;
- long value;
- unsigned int attrs;
+print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ void *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;
(*info->fprintf_func) (info->stream, "???");
}
\f
-/* Default insn extractor.
-
- INSN_VALUE is the first CGEN_BASE_INSN_SIZE bytes, translated to host order.
- The extracted fields are stored in FIELDS.
- EX_INFO is used to handle reading variable length insns.
- Return the length of the insn in bits, or 0 if no match,
- or -1 if an error occurs fetching data (memory_error_func will have
- been called). */
-
-static int
-extract_insn_normal (od, insn, ex_info, insn_value, fields, pc)
- CGEN_OPCODE_DESC od;
- const CGEN_INSN *insn;
- CGEN_EXTRACT_INFO *ex_info;
- CGEN_INSN_INT insn_value;
- CGEN_FIELDS *fields;
- bfd_vma pc;
-{
- const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
- const unsigned char *syn;
-
- CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
-
- CGEN_INIT_EXTRACT (od);
-
- for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
- {
- int length;
-
- if (CGEN_SYNTAX_CHAR_P (*syn))
- continue;
-
- length = fr30_cgen_extract_operand (od, CGEN_SYNTAX_FIELD (*syn),
- ex_info, insn_value, fields, pc);
- if (length <= 0)
- return length;
- }
-
- /* We recognized and successfully extracted this insn. */
- return CGEN_INSN_BITSIZE (insn);
-}
-
/* Default insn printer.
- DIS_INFO is defined as `PTR' so the disassembler needn't know anything
+ DIS_INFO is defined as `void *' so the disassembler needn't know anything
about disassemble_info. */
static void
-print_insn_normal (od, dis_info, insn, fields, pc, length)
- CGEN_OPCODE_DESC od;
- PTR dis_info;
- const CGEN_INSN *insn;
- CGEN_FIELDS *fields;
- bfd_vma pc;
- int length;
+print_insn_normal (CGEN_CPU_DESC cd,
+ void *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 unsigned char *syn;
+ const CGEN_SYNTAX_CHAR_TYPE *syn;
- CGEN_INIT_PRINT (od);
+ CGEN_INIT_PRINT (cd);
for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
{
}
/* We have an operand. */
- fr30_cgen_print_operand (od, CGEN_SYNTAX_FIELD (*syn), info,
+ fr30_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
fields, CGEN_INSN_ATTRS (insn), pc, length);
}
}
\f
+/* 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 (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
+ bfd_vma pc,
+ disassemble_info *info,
+ bfd_byte *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
been called). */
static int
-print_insn (od, pc, info, buf, buflen)
- CGEN_OPCODE_DESC od;
- bfd_vma pc;
- disassemble_info *info;
- char *buf;
- int buflen;
+print_insn (CGEN_CPU_DESC cd,
+ bfd_vma pc,
+ disassemble_info *info,
+ bfd_byte *buf,
+ unsigned int buflen)
{
- unsigned long insn_value;
+ CGEN_INSN_INT insn_value;
const CGEN_INSN_LIST *insn_list;
CGEN_EXTRACT_INFO ex_info;
+ int basesize;
+
+ /* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
+ basesize = cd->base_insn_bitsize < buflen * 8 ?
+ cd->base_insn_bitsize : buflen * 8;
+ insn_value = cgen_get_insn_value (cd, buf, basesize, cd->insn_endian);
+
+ /* 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.valid = (1 << CGEN_BASE_INSN_SIZE) - 1;
ex_info.insn_bytes = buf;
- switch (buflen)
- {
- case 1:
- insn_value = buf[0];
- break;
- case 2:
- insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb16 (buf) : bfd_getl16 (buf);
- break;
- case 4:
- insn_value = info->endian == BFD_ENDIAN_BIG ? bfd_getb32 (buf) : bfd_getl32 (buf);
- break;
- default:
- abort ();
- }
-
/* 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 (od, buf, insn_value);
+ insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
while (insn_list != NULL)
{
const CGEN_INSN *insn = insn_list->insn;
CGEN_FIELDS fields;
int length;
+ unsigned long insn_value_cropped;
-#if 0 /* not needed as insn shouldn't be in hash lists if not supported */
+#ifdef CGEN_VALIDATE_INSN_SUPPORTED
+ /* Not needed as insn shouldn't be in hash lists if not supported. */
/* Supported by this cpu? */
- if (! fr30_cgen_insn_supported (od, insn))
- continue;
+ if (! fr30_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. */
- if ((insn_value & CGEN_INSN_BASE_MASK (insn))
+
+ /* Base size may exceed this instruction's size. Extract the
+ relevant part from the buffer. */
+ if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
+ (unsigned) (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. */
- length = (*CGEN_EXTRACT_FN (insn)) (od, insn, &ex_info, insn_value,
- &fields, pc);
- /* length < 0 -> error */
+ /* Make sure the entire insn is loaded into insn_value, if it
+ can fit. */
+ if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
+ (unsigned) (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 (insn)) (od, info, insn, &fields, pc, length);
- /* length is in bits, result is in bytes */
+ CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
+ /* Length is in bits, result is in bytes. */
return length / 8;
}
}
#endif
static int
-default_print_insn (od, pc, info)
- CGEN_OPCODE_DESC od;
- bfd_vma pc;
- disassemble_info *info;
+default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
{
- char buf[CGEN_MAX_INSN_SIZE];
+ bfd_byte buf[CGEN_MAX_INSN_SIZE];
+ int buflen;
int status;
- /* Read the base part of the insn. */
+ /* 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);
+ }
- status = (*info->read_memory_func) (pc, buf, CGEN_BASE_INSN_SIZE, info);
if (status != 0)
{
(*info->memory_error_func) (status, pc, info);
return -1;
}
- return print_insn (od, pc, info, buf, CGEN_BASE_INSN_SIZE);
+ 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). */
+typedef struct cpu_desc_list
+{
+ struct cpu_desc_list *next;
+ CGEN_BITSET *isa;
+ int mach;
+ int endian;
+ int insn_endian;
+ CGEN_CPU_DESC cd;
+} cpu_desc_list;
+
int
-print_insn_fr30 (pc, info)
- bfd_vma pc;
- disassemble_info *info;
+print_insn_fr30 (bfd_vma pc, disassemble_info *info)
{
+ static cpu_desc_list *cd_list = 0;
+ cpu_desc_list *cl = 0;
+ static CGEN_CPU_DESC cd = 0;
+ static CGEN_BITSET *prev_isa;
+ static int prev_mach;
+ static int prev_endian;
+ static int prev_insn_endian;
int length;
- static CGEN_OPCODE_DESC od = 0;
- int mach = info->mach;
- int big_p = info->endian == BFD_ENDIAN_BIG;
+ CGEN_BITSET *isa;
+ int mach;
+ int endian = (info->endian == BFD_ENDIAN_BIG
+ ? CGEN_ENDIAN_BIG
+ : CGEN_ENDIAN_LITTLE);
+ int insn_endian = (info->endian_code == 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_fr30
+#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
- /* If we haven't initialized yet, initialize the opcode table. */
- if (! od)
+#ifdef CGEN_COMPUTE_ISA
+ {
+ static CGEN_BITSET *permanent_isa;
+
+ if (!permanent_isa)
+ permanent_isa = cgen_bitset_create (MAX_ISAS);
+ isa = permanent_isa;
+ cgen_bitset_clear (isa);
+ cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
+ }
+#else
+ isa = info->private_data;
+#endif
+
+ /* If we've switched cpu's, try to find a handle we've used before */
+ if (cd
+ && (cgen_bitset_compare (isa, prev_isa) != 0
+ || mach != prev_mach
+ || endian != prev_endian))
{
- od = fr30_cgen_opcode_open (mach,
- big_p ?
- CGEN_ENDIAN_BIG
- : CGEN_ENDIAN_LITTLE);
- fr30_cgen_init_dis (od);
+ cd = 0;
+ for (cl = cd_list; cl; cl = cl->next)
+ {
+ if (cgen_bitset_compare (cl->isa, isa) == 0 &&
+ cl->mach == mach &&
+ cl->endian == endian)
+ {
+ cd = cl->cd;
+ prev_isa = cd->isas;
+ break;
+ }
+ }
}
- /* If we've switched cpu's, re-initialize. */
- /* ??? Perhaps we should use BFD_ENDIAN. */
- else if (mach != CGEN_OPCODE_MACH (od)
- || (CGEN_OPCODE_ENDIAN (od)
- != (big_p ? CGEN_ENDIAN_BIG : CGEN_ENDIAN_LITTLE)))
+
+ /* If we haven't initialized yet, initialize the opcode table. */
+ if (! cd)
{
- cgen_set_cpu (od, mach, big_p ? CGEN_ENDIAN_BIG : CGEN_ENDIAN_LITTLE);
+ 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 = cgen_bitset_copy (isa);
+ prev_mach = mach;
+ prev_endian = endian;
+ prev_insn_endian = insn_endian;
+ cd = fr30_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
+ CGEN_CPU_OPEN_BFDMACH, mach_name,
+ CGEN_CPU_OPEN_ENDIAN, prev_endian,
+ CGEN_CPU_OPEN_INSN_ENDIAN, prev_insn_endian,
+ CGEN_CPU_OPEN_END);
+ if (!cd)
+ abort ();
+
+ /* Save this away for future reference. */
+ cl = xmalloc (sizeof (struct cpu_desc_list));
+ cl->cd = cd;
+ cl->isa = prev_isa;
+ cl->mach = mach;
+ cl->endian = endian;
+ cl->next = cd_list;
+ cd_list = cl;
+
+ fr30_cgen_init_dis (cd);
}
/* We try to have as much common code as possible.
/* ??? 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 (od, pc, info);
+ 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 CGEN_DEFAULT_INSN_SIZE;
+ return cd->default_insn_bitsize / 8;
}
projects / thirdparty / binutils-gdb.git / blobdiff