/* Disassemble z8000 code.
- Copyright 1992, 1993, 1998, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1992-2019 Free Software Foundation, Inc.
- This file is part of GNU Binutils.
+ This file is part of the GNU opcodes library.
- This program is free software; you can redistribute it and/or modify
+ 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 2 of the License, or
- (at your option) any later version.
+ 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. */
+ along with this file; see the file COPYING. If not, write to the
+ Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include "sysdep.h"
-#include "dis-asm.h"
+#include "disassemble.h"
#define DEFINE_TABLE
#include "z8k-opc.h"
-\f
+
#include <setjmp.h>
-\f
+
typedef struct
{
/* These are all indexed by nibble number (i.e only every other entry
/* Nibble number of first word not yet fetched. */
int max_fetched;
bfd_vma insn_start;
- jmp_buf bailout;
+ OPCODES_SIGJMP_BUF bailout;
- long tabl_index;
+ int tabl_index;
char instr_asmsrc[80];
unsigned long arg_reg[0x0f];
unsigned long immediate;
}
instr_data_s;
-static int fetch_data PARAMS ((struct disassemble_info *, int));
-
-
/* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
to ADDR (exclusive) are valid. Returns 1 for success, longjmps
on error. */
? 1 : fetch_data ((info), (nibble)))
static int
-fetch_data (info, nibble)
- struct disassemble_info *info;
- int nibble;
+fetch_data (struct disassemble_info *info, int nibble)
{
unsigned char mybuf[20];
int status;
if (status != 0)
{
(*info->memory_error_func) (status, priv->insn_start, info);
- longjmp (priv->bailout, 1);
+ OPCODES_SIGLONGJMP (priv->bailout, 1);
}
{
};
static int seg_length;
-static int print_insn_z8k PARAMS ((bfd_vma, disassemble_info *, int));
-int z8k_lookup_instr PARAMS ((unsigned char *, disassemble_info *));
-static void output_instr
- PARAMS ((instr_data_s *, unsigned long, disassemble_info *));
-static void unpack_instr PARAMS ((instr_data_s *, int, disassemble_info *));
-static void unparse_instr PARAMS ((instr_data_s *, int));
+int z8k_lookup_instr (unsigned char *, disassemble_info *);
+static void output_instr (instr_data_s *, unsigned long, disassemble_info *);
+static void unpack_instr (instr_data_s *, int, disassemble_info *);
+static void unparse_instr (instr_data_s *, int);
static int
-print_insn_z8k (addr, info, is_segmented)
- bfd_vma addr;
- disassemble_info *info;
- int is_segmented;
+print_insn_z8k (bfd_vma addr, disassemble_info *info, int is_segmented)
{
instr_data_s instr_data;
info->private_data = (PTR) &instr_data;
instr_data.max_fetched = 0;
instr_data.insn_start = addr;
- if (setjmp (instr_data.bailout) != 0)
+ if (OPCODES_SIGSETJMP (instr_data.bailout) != 0)
/* Error return. */
return -1;
info->display_endian = BFD_ENDIAN_BIG;
instr_data.tabl_index = z8k_lookup_instr (instr_data.nibbles, info);
- if (instr_data.tabl_index > 0)
+ if (instr_data.tabl_index >= 0)
{
unpack_instr (&instr_data, is_segmented, info);
unparse_instr (&instr_data, is_segmented);
}
int
-print_insn_z8001 (addr, info)
- bfd_vma addr;
- disassemble_info *info;
+print_insn_z8001 (bfd_vma addr, disassemble_info *info)
{
return print_insn_z8k (addr, info, 1);
}
int
-print_insn_z8002 (addr, info)
- bfd_vma addr;
- disassemble_info *info;
+print_insn_z8002 (bfd_vma addr, disassemble_info *info)
{
return print_insn_z8k (addr, info, 0);
}
int
-z8k_lookup_instr (nibbles, info)
- unsigned char *nibbles;
- disassemble_info *info;
+z8k_lookup_instr (unsigned char *nibbles, disassemble_info *info)
{
-
int nibl_index, tabl_index;
int nibl_matched;
+ int need_fetch = 0;
unsigned short instr_nibl;
unsigned short tabl_datum, datum_class, datum_value;
nibl_matched = 0;
tabl_index = 0;
+ FETCH_DATA (info, 4);
while (!nibl_matched && z8k_table[tabl_index].name)
{
nibl_matched = 1;
nibl_index++)
{
if ((nibl_index % 4) == 0)
- /* Fetch one word at a time. */
- FETCH_DATA (info, nibl_index + 4);
+ {
+ /* Fetch data only if it isn't already there. */
+ if (nibl_index >= 4 || (nibl_index < 4 && need_fetch))
+ FETCH_DATA (info, nibl_index + 4); /* Fetch one word at a time. */
+ if (nibl_index < 4)
+ need_fetch = 0;
+ else
+ need_fetch = 1;
+ }
instr_nibl = nibbles[nibl_index];
tabl_datum = z8k_table[tabl_index].byte_info[nibl_index];
}
static void
-output_instr (instr_data, addr, info)
- instr_data_s *instr_data;
- unsigned long addr ATTRIBUTE_UNUSED;
- disassemble_info *info;
+output_instr (instr_data_s *instr_data,
+ unsigned long addr ATTRIBUTE_UNUSED,
+ disassemble_info *info)
{
int num_bytes;
char out_str[100];
}
static void
-unpack_instr (instr_data, is_segmented, info)
- instr_data_s *instr_data;
- int is_segmented;
- disassemble_info *info;
+unpack_instr (instr_data_s *instr_data, int is_segmented, disassemble_info *info)
{
int nibl_count, loop;
unsigned short instr_nibl, instr_byte, instr_word;
FETCH_DATA (info, nibl_count + 8);
instr_long = (instr_data->words[nibl_count] << 16)
| (instr_data->words[nibl_count + 4]);
- instr_data->address = ((instr_word & 0x7f00) << 8)
+ instr_data->address = ((instr_word & 0x7f00) << 16)
+ (instr_long & 0xffff);
nibl_count += 7;
seg_length = 2;
}
else
{
- instr_data->address = ((instr_word & 0x7f00) << 8)
+ instr_data->address = ((instr_word & 0x7f00) << 16)
+ (instr_word & 0x00ff);
nibl_count += 3;
}
}
static void
-unparse_instr (instr_data, is_segmented)
- instr_data_s *instr_data;
- int is_segmented;
+print_intr(char *tmp_str, unsigned long interrupts)
+{
+ int comma = 0;
+
+ *tmp_str = 0;
+ if (! (interrupts & 2))
+ {
+ strcat (tmp_str, "vi");
+ comma = 1;
+ }
+ if (! (interrupts & 1))
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "nvi");
+ }
+}
+
+static void
+print_flags(char *tmp_str, unsigned long flags)
+{
+ int comma = 0;
+
+ *tmp_str = 0;
+ if (flags & 8)
+ {
+ strcat (tmp_str, "c");
+ comma = 1;
+ }
+ if (flags & 4)
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "z");
+ comma = 1;
+ }
+ if (flags & 2)
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "s");
+ comma = 1;
+ }
+ if (flags & 1)
+ {
+ if (comma) strcat (tmp_str, ",");
+ strcat (tmp_str, "p");
+ }
+}
+
+static void
+unparse_instr (instr_data_s *instr_data, int is_segmented)
{
unsigned short datum_value;
unsigned int tabl_datum, datum_class;
strcat (out_str, tmp_str);
break;
case CLASS_IMM:
+ if (datum_value == ARG_IMM2) /* True with EI/DI instructions only. */
+ {
+ print_intr (tmp_str, instr_data->interrupts);
+ strcat (out_str, tmp_str);
+ break;
+ }
sprintf (tmp_str, "#0x%0lx", instr_data->immediate);
strcat (out_str, tmp_str);
break;
sprintf (tmp_str, "@r%ld", instr_data->arg_reg[datum_value]);
strcat (out_str, tmp_str);
break;
+ case CLASS_IRO:
+ sprintf (tmp_str, "@r%ld", instr_data->arg_reg[datum_value]);
+ strcat (out_str, tmp_str);
+ break;
case CLASS_FLAGS:
- sprintf (tmp_str, "0x%0lx", instr_data->flags);
+ print_flags(tmp_str, instr_data->flags);
strcat (out_str, tmp_str);
break;
case CLASS_REG_BYTE:
projects / deliverable / binutils-gdb.git / blobdiff