/* Disassemble MN10300 instructions.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2003
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005
Free Software Foundation, Inc.
-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 of the License, or
-(at your option) any later version.
+ 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 of the License, 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#include <stdio.h>
#include "dis-asm.h"
#include "opintl.h"
-static void disassemble PARAMS ((bfd_vma, struct disassemble_info *,
- unsigned long insn, unsigned int));
-
#define HAVE_AM33_2 (info->mach == AM33_2)
-#define HAVE_AM33 (info->mach == AM33 || HAVE_AM33_2)
-#define HAVE_AM30 (info->mach == AM30)
-
-int
-print_insn_mn10300 (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info *info;
-{
- int status;
- bfd_byte buffer[4];
- unsigned long insn;
- unsigned int consume;
-
- /* First figure out how big the opcode is. */
- status = (*info->read_memory_func) (memaddr, buffer, 1, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- insn = *(unsigned char *) buffer;
-
- /* These are one byte insns. */
- if ((insn & 0xf3) == 0x00
- || (insn & 0xf0) == 0x10
- || (insn & 0xfc) == 0x3c
- || (insn & 0xf3) == 0x41
- || (insn & 0xf3) == 0x40
- || (insn & 0xfc) == 0x50
- || (insn & 0xfc) == 0x54
- || (insn & 0xf0) == 0x60
- || (insn & 0xf0) == 0x70
- || ((insn & 0xf0) == 0x80
- && (insn & 0x0c) >> 2 != (insn & 0x03))
- || ((insn & 0xf0) == 0x90
- && (insn & 0x0c) >> 2 != (insn & 0x03))
- || ((insn & 0xf0) == 0xa0
- && (insn & 0x0c) >> 2 != (insn & 0x03))
- || ((insn & 0xf0) == 0xb0
- && (insn & 0x0c) >> 2 != (insn & 0x03))
- || (insn & 0xff) == 0xcb
- || (insn & 0xfc) == 0xd0
- || (insn & 0xfc) == 0xd4
- || (insn & 0xfc) == 0xd8
- || (insn & 0xf0) == 0xe0
- || (insn & 0xff) == 0xff)
- {
- consume = 1;
- }
-
- /* These are two byte insns. */
- else if ((insn & 0xf0) == 0x80
- || (insn & 0xf0) == 0x90
- || (insn & 0xf0) == 0xa0
- || (insn & 0xf0) == 0xb0
- || (insn & 0xfc) == 0x20
- || (insn & 0xfc) == 0x28
- || (insn & 0xf3) == 0x43
- || (insn & 0xf3) == 0x42
- || (insn & 0xfc) == 0x58
- || (insn & 0xfc) == 0x5c
- || ((insn & 0xf0) == 0xc0
- && (insn & 0xff) != 0xcb
- && (insn & 0xff) != 0xcc
- && (insn & 0xff) != 0xcd)
- || (insn & 0xff) == 0xf0
- || (insn & 0xff) == 0xf1
- || (insn & 0xff) == 0xf2
- || (insn & 0xff) == 0xf3
- || (insn & 0xff) == 0xf4
- || (insn & 0xff) == 0xf5
- || (insn & 0xff) == 0xf6)
- {
- status = (*info->read_memory_func) (memaddr, buffer, 2, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- insn = bfd_getb16 (buffer);
- consume = 2;
- }
-
- /* These are three byte insns. */
- else if ((insn & 0xff) == 0xf8
- || (insn & 0xff) == 0xcc
- || (insn & 0xff) == 0xf9
- || (insn & 0xf3) == 0x01
- || (insn & 0xf3) == 0x02
- || (insn & 0xf3) == 0x03
- || (insn & 0xfc) == 0x24
- || (insn & 0xfc) == 0x2c
- || (insn & 0xfc) == 0x30
- || (insn & 0xfc) == 0x34
- || (insn & 0xfc) == 0x38
- || (insn & 0xff) == 0xde
- || (insn & 0xff) == 0xdf
- || (insn & 0xff) == 0xf9
- || (insn & 0xff) == 0xcc)
- {
- status = (*info->read_memory_func) (memaddr, buffer, 2, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- insn = bfd_getb16 (buffer);
- insn <<= 8;
- status = (*info->read_memory_func) (memaddr + 2, buffer, 1, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- insn |= *(unsigned char *) buffer;
- consume = 3;
- }
-
- /* These are four byte insns. */
- else if ((insn & 0xff) == 0xfa
- || (insn & 0xff) == 0xf7
- || (insn & 0xff) == 0xfb)
- {
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- insn = bfd_getb32 (buffer);
- consume = 4;
- }
-
- /* These are five byte insns. */
- else if ((insn & 0xff) == 0xcd
- || (insn & 0xff) == 0xdc)
- {
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
- insn = bfd_getb32 (buffer);
- consume = 5;
- }
-
- /* These are six byte insns. */
- else if ((insn & 0xff) == 0xfd
- || (insn & 0xff) == 0xfc)
- {
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
-
- insn = bfd_getb32 (buffer);
- consume = 6;
- }
-
- /* Else its a seven byte insns (in theory). */
- else
- {
- status = (*info->read_memory_func) (memaddr, buffer, 4, info);
- if (status != 0)
- {
- (*info->memory_error_func) (status, memaddr, info);
- return -1;
- }
-
- insn = bfd_getb32 (buffer);
- consume = 7;
- /* Handle the 5-byte extended instruction codes. */
- if ((insn & 0xfff80000) == 0xfe800000)
- consume = 5;
- }
-
- disassemble (memaddr, info, insn, consume);
-
- return consume;
-}
+#define HAVE_AM33 (info->mach == AM33 || HAVE_AM33_2)
+#define HAVE_AM30 (info->mach == AM30)
static void
-disassemble (memaddr, info, insn, size)
- bfd_vma memaddr;
- struct disassemble_info *info;
- unsigned long insn;
- unsigned int size;
+disassemble (bfd_vma memaddr,
+ struct disassemble_info *info,
+ unsigned long insn,
+ unsigned int size)
{
- struct mn10300_opcode *op = (struct mn10300_opcode *)mn10300_opcodes;
+ struct mn10300_opcode *op = (struct mn10300_opcode *) mn10300_opcodes;
const struct mn10300_operand *operand;
bfd_byte buffer[4];
unsigned long extension = 0;
extra_shift = 0;
if (size == 1 || size == 2)
- {
- extension = 0;
- }
+ extension = 0;
+
else if (size == 3
&& (op->format == FMT_D1
|| op->opcode == 0xdf0000
|| op->opcode == 0xde0000))
- {
- extension = 0;
- }
+ extension = 0;
+
else if (size == 3
&& op->format == FMT_D6)
- {
- extension = 0;
- }
+ extension = 0;
+
else if (size == 3)
{
insn &= 0xff0000;
&& (op->opcode == 0xfaf80000
|| op->opcode == 0xfaf00000
|| op->opcode == 0xfaf40000))
- {
- extension = 0;
- }
+ extension = 0;
+
else if (size == 4
&& (op->format == FMT_D7
|| op->format == FMT_D10))
- {
- extension = 0;
- }
+ extension = 0;
+
else if (size == 4)
{
insn &= 0xffff0000;
else if (size == 5 && op->opcode == 0xdc000000)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 1, buffer, 4, info);
if (status != 0)
{
else if (size == 5)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info);
if (status != 0)
{
else if (size == 6)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 2, buffer, 4, info);
if (status != 0)
{
else if (size == 7 && op->opcode == 0xdd000000)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 1, buffer, 4, info);
if (status != 0)
{
else if (size == 7)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 2, buffer, 4, info);
if (status != 0)
{
if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
{
unsigned long temp;
+
value = insn & ((1 << operand->bits) - 1);
value <<= (32 - operand->bits);
temp = extension >> operand->shift;
else if ((operand->flags & MN10300_OPERAND_24BIT) != 0)
{
unsigned long temp;
+
value = insn & ((1 << operand->bits) - 1);
value <<= (24 - operand->bits);
temp = extension >> operand->shift;
| ((insn >> shl_low) & mask_low));
}
else if ((operand->flags & MN10300_OPERAND_EXTENDED) != 0)
- {
- value = ((extension >> (operand->shift))
- & ((1 << operand->bits) - 1));
- }
+ value = ((extension >> (operand->shift))
+ & ((1 << operand->bits) - 1));
+
else
- {
- value = ((insn >> (operand->shift))
- & ((1 << operand->bits) - 1));
- }
+ value = ((insn >> (operand->shift))
+ & ((1 << operand->bits) - 1));
if ((operand->flags & MN10300_OPERAND_SIGNED) != 0
/* These are properly extended by the code above. */
}
if (!match)
+ /* xgettext:c-format */
+ (*info->fprintf_func) (info->stream, _("unknown\t0x%04x"), insn);
+}
+
+int
+print_insn_mn10300 (bfd_vma memaddr, struct disassemble_info *info)
+{
+ int status;
+ bfd_byte buffer[4];
+ unsigned long insn;
+ unsigned int consume;
+
+ /* First figure out how big the opcode is. */
+ status = (*info->read_memory_func) (memaddr, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = *(unsigned char *) buffer;
+
+ /* These are one byte insns. */
+ if ((insn & 0xf3) == 0x00
+ || (insn & 0xf0) == 0x10
+ || (insn & 0xfc) == 0x3c
+ || (insn & 0xf3) == 0x41
+ || (insn & 0xf3) == 0x40
+ || (insn & 0xfc) == 0x50
+ || (insn & 0xfc) == 0x54
+ || (insn & 0xf0) == 0x60
+ || (insn & 0xf0) == 0x70
+ || ((insn & 0xf0) == 0x80
+ && (insn & 0x0c) >> 2 != (insn & 0x03))
+ || ((insn & 0xf0) == 0x90
+ && (insn & 0x0c) >> 2 != (insn & 0x03))
+ || ((insn & 0xf0) == 0xa0
+ && (insn & 0x0c) >> 2 != (insn & 0x03))
+ || ((insn & 0xf0) == 0xb0
+ && (insn & 0x0c) >> 2 != (insn & 0x03))
+ || (insn & 0xff) == 0xcb
+ || (insn & 0xfc) == 0xd0
+ || (insn & 0xfc) == 0xd4
+ || (insn & 0xfc) == 0xd8
+ || (insn & 0xf0) == 0xe0
+ || (insn & 0xff) == 0xff)
{
- /* xgettext:c-format */
- (*info->fprintf_func) (info->stream, _("unknown\t0x%04x"), insn);
+ consume = 1;
}
+
+ /* These are two byte insns. */
+ else if ((insn & 0xf0) == 0x80
+ || (insn & 0xf0) == 0x90
+ || (insn & 0xf0) == 0xa0
+ || (insn & 0xf0) == 0xb0
+ || (insn & 0xfc) == 0x20
+ || (insn & 0xfc) == 0x28
+ || (insn & 0xf3) == 0x43
+ || (insn & 0xf3) == 0x42
+ || (insn & 0xfc) == 0x58
+ || (insn & 0xfc) == 0x5c
+ || ((insn & 0xf0) == 0xc0
+ && (insn & 0xff) != 0xcb
+ && (insn & 0xff) != 0xcc
+ && (insn & 0xff) != 0xcd)
+ || (insn & 0xff) == 0xf0
+ || (insn & 0xff) == 0xf1
+ || (insn & 0xff) == 0xf2
+ || (insn & 0xff) == 0xf3
+ || (insn & 0xff) == 0xf4
+ || (insn & 0xff) == 0xf5
+ || (insn & 0xff) == 0xf6)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb16 (buffer);
+ consume = 2;
+ }
+
+ /* These are three byte insns. */
+ else if ((insn & 0xff) == 0xf8
+ || (insn & 0xff) == 0xcc
+ || (insn & 0xff) == 0xf9
+ || (insn & 0xf3) == 0x01
+ || (insn & 0xf3) == 0x02
+ || (insn & 0xf3) == 0x03
+ || (insn & 0xfc) == 0x24
+ || (insn & 0xfc) == 0x2c
+ || (insn & 0xfc) == 0x30
+ || (insn & 0xfc) == 0x34
+ || (insn & 0xfc) == 0x38
+ || (insn & 0xff) == 0xde
+ || (insn & 0xff) == 0xdf
+ || (insn & 0xff) == 0xf9
+ || (insn & 0xff) == 0xcc)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb16 (buffer);
+ insn <<= 8;
+ status = (*info->read_memory_func) (memaddr + 2, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn |= *(unsigned char *) buffer;
+ consume = 3;
+ }
+
+ /* These are four byte insns. */
+ else if ((insn & 0xff) == 0xfa
+ || (insn & 0xff) == 0xf7
+ || (insn & 0xff) == 0xfb)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb32 (buffer);
+ consume = 4;
+ }
+
+ /* These are five byte insns. */
+ else if ((insn & 0xff) == 0xcd
+ || (insn & 0xff) == 0xdc)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getb32 (buffer);
+ consume = 5;
+ }
+
+ /* These are six byte insns. */
+ else if ((insn & 0xff) == 0xfd
+ || (insn & 0xff) == 0xfc)
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+
+ insn = bfd_getb32 (buffer);
+ consume = 6;
+ }
+
+ /* Else its a seven byte insns (in theory). */
+ else
+ {
+ status = (*info->read_memory_func) (memaddr, buffer, 4, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return -1;
+ }
+
+ insn = bfd_getb32 (buffer);
+ consume = 7;
+ /* Handle the 5-byte extended instruction codes. */
+ if ((insn & 0xfff80000) == 0xfe800000)
+ consume = 5;
+ }
+
+ disassemble (memaddr, info, insn, consume);
+
+ return consume;
}
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