/* Disassemble MN10300 instructions.
- Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1996-2020 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 file is part of the GNU opcodes library.
-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.
+ 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.
-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. */
+ 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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+#include "sysdep.h"
#include <stdio.h>
-
-#include "ansidecl.h"
-#include "opcode/mn10300.h"
-#include "dis-asm.h"
+#include "opcode/mn10300.h"
+#include "disassemble.h"
#include "opintl.h"
-static void disassemble PARAMS ((bfd_vma, struct disassemble_info *,
- unsigned long insn, unsigned int));
-
-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
- /* start-sanitize-am33 */
- || (insn & 0xff) == 0xf9
- /* end-sanitize-am33 */
- || (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
- /* start-sanitize-am33 */
- || (insn & 0xff) == 0xf7
- /* end-sanitize-am33 */
- || (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;
- }
-
- disassemble (memaddr, info, insn, consume);
-
- return consume;
-}
+#define HAVE_AM33_2 (info->mach == AM33_2)
+#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;
mysize = 5;
else if (op->format == FMT_D2)
mysize = 4;
+ else if (op->format == FMT_D3)
+ mysize = 5;
else if (op->format == FMT_D4)
mysize = 6;
- /* start-sanitize-am33 */
else if (op->format == FMT_D6)
mysize = 3;
else if (op->format == FMT_D7 || op->format == FMT_D10)
mysize = 6;
else if (op->format == FMT_D9)
mysize = 7;
- /* end-sanitize-am33 */
else
mysize = 7;
-
+
if ((op->mask & insn) == op->opcode
&& size == (unsigned int) mysize
&& (op->machine == 0
- || op->machine == info->mach))
+ || (op->machine == AM33_2 && HAVE_AM33_2)
+ || (op->machine == AM33 && HAVE_AM33)
+ || (op->machine == AM30 && HAVE_AM30)))
{
const unsigned char *opindex_ptr;
unsigned int nocomma;
int paren = 0;
-
+
if (op->format == FMT_D1 || op->format == FMT_S1)
extra_shift = 8;
else if (op->format == FMT_D2 || op->format == FMT_D4
|| op->format == FMT_S2 || op->format == FMT_S4
|| op->format == FMT_S6 || op->format == FMT_D5)
extra_shift = 16;
- /* start-sanitize-am33 */
else if (op->format == FMT_D7
|| op->format == FMT_D8
|| op->format == FMT_D9)
extra_shift = 8;
- /* end-sanitize-am33 */
else
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;
- }
- /* start-sanitize-am33 */
+ extension = 0;
+
else if (size == 3
&& op->format == FMT_D6)
- {
- extension = 0;
- }
- /* end-sanitize-am33 */
+ extension = 0;
+
else if (size == 3)
{
insn &= 0xff0000;
&& (op->opcode == 0xfaf80000
|| op->opcode == 0xfaf00000
|| op->opcode == 0xfaf40000))
- {
- extension = 0;
- }
- /* start-sanitize-am33 */
+ extension = 0;
+
else if (size == 4
&& (op->format == FMT_D7
|| op->format == FMT_D10))
- {
- extension = 0;
- }
- /* end-sanitize-am33 */
+ 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)
{
insn |= (temp & 0xffffff00) >> 8;
extension = temp & 0xff;
}
+ else if (size == 5 && op->format == FMT_D3)
+ {
+ status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return;
+ }
+ insn &= 0xffff0000;
+ insn |= bfd_getl16 (buffer);
+
+ status = (*info->read_memory_func) (memaddr + 4, buffer, 1, info);
+ if (status != 0)
+ {
+ (*info->memory_error_func) (status, memaddr, info);
+ return;
+ }
+ extension = *(unsigned char *) buffer;
+ }
else if (size == 5)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info);
if (status != 0)
{
(*info->memory_error_func) (status, memaddr, info);
return;
}
- extension = *(unsigned char *)buffer;
+ extension = *(unsigned char *) buffer;
}
- /* start-sanitize-am33 */
else if (size == 6 && op->format == FMT_D8)
{
insn &= 0xffffff00;
(*info->memory_error_func) (status, memaddr, info);
return;
}
- insn |= *(unsigned char *)buffer;
+ insn |= *(unsigned char *) buffer;
status = (*info->read_memory_func) (memaddr + 3, buffer, 2, info);
if (status != 0)
}
extension = bfd_getl16 (buffer);
}
- /* end-sanitize-am33 */
else if (size == 6)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 2, buffer, 4, info);
if (status != 0)
{
insn |= (temp >> 16) & 0xffff;
extension = temp & 0xffff;
}
- /* start-sanitize-am33 */
else if (size == 7 && op->format == FMT_D9)
{
insn &= 0xffffff00;
insn |= (extension & 0xff000000) >> 24;
extension &= 0xffffff;
}
- /* end-sanitize-am33 */
else if (size == 7 && op->opcode == 0xdd000000)
{
unsigned long temp = 0;
+
status = (*info->read_memory_func) (memaddr + 1, buffer, 4, info);
if (status != 0)
{
insn &= 0xff000000;
insn |= (temp >> 8) & 0xffffff;
extension = (temp & 0xff) << 16;
-
+
status = (*info->read_memory_func) (memaddr + 5, buffer, 2, 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)
{
insn &= 0xffff0000;
insn |= (temp >> 16) & 0xffff;
extension = (temp & 0xffff) << 8;
-
+
status = (*info->read_memory_func) (memaddr + 6, buffer, 1, info);
if (status != 0)
{
(*info->memory_error_func) (status, memaddr, info);
return;
}
- extension |= *(unsigned char *)buffer;
+ extension |= *(unsigned char *) buffer;
}
match = 1;
operand = &mn10300_operands[*opindex_ptr];
- if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
+ /* If this operand is a PLUS (autoincrement), then do not emit
+ a comma before emitting the plus. */
+ if ((operand->flags & MN10300_OPERAND_PLUS) != 0)
+ nocomma = 1;
+
+ if ((operand->flags & MN10300_OPERAND_DREG) != 0
+ || (operand->flags & MN10300_OPERAND_AREG) != 0
+ || (operand->flags & MN10300_OPERAND_RREG) != 0
+ || (operand->flags & MN10300_OPERAND_XRREG) != 0)
+ value = ((insn >> (operand->shift + extra_shift))
+ & ((1 << operand->bits) - 1));
+ else if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
{
unsigned long temp;
+
value = insn & ((1 << operand->bits) - 1);
value <<= (32 - operand->bits);
temp = extension >> operand->shift;
temp &= ((1 << (32 - operand->bits)) - 1);
value |= temp;
+ value = ((value ^ (((unsigned long) 1) << 31))
+ - (((unsigned long) 1) << 31));
}
- /* start-sanitize-am33 */
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;
temp &= ((1 << (24 - operand->bits)) - 1);
value |= temp;
if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
- value = ((value & 0xffffff) ^ (~0x7fffff)) + 0x800000;
+ value = ((value & 0xffffff) ^ 0x800000) - 0x800000;
}
- /* end-sanitize-am33 */
- else if ((operand->flags & MN10300_OPERAND_EXTENDED) != 0)
+ else if ((operand->flags & (MN10300_OPERAND_FSREG
+ | MN10300_OPERAND_FDREG)))
{
- value = ((extension >> (operand->shift))
- & ((1 << operand->bits) - 1));
+ /* See m10300-opc.c just before #define FSM0 for an
+ explanation of these variables. Note that
+ FMT-implied shifts are not taken into account for
+ FP registers. */
+ unsigned long mask_low, mask_high;
+ int shl_low, shr_high, shl_high;
+
+ switch (operand->bits)
+ {
+ case 5:
+ /* Handle regular FP registers. */
+ if (operand->shift >= 0)
+ {
+ /* This is an `m' register. */
+ shl_low = operand->shift;
+ shl_high = 8 + (8 & shl_low) + (shl_low & 4) / 4;
+ }
+ else
+ {
+ /* This is an `n' register. */
+ shl_low = -operand->shift;
+ shl_high = shl_low / 4;
+ }
+ mask_low = 0x0f;
+ mask_high = 0x10;
+ shr_high = 4;
+ break;
+
+ case 3:
+ /* Handle accumulators. */
+ shl_low = -operand->shift;
+ shl_high = 0;
+ mask_low = 0x03;
+ mask_high = 0x04;
+ shr_high = 2;
+ break;
+
+ default:
+ abort ();
+ }
+ value = ((((insn >> shl_high) << shr_high) & mask_high)
+ | ((insn >> shl_low) & mask_low));
}
+ else if ((operand->flags & MN10300_OPERAND_EXTENDED) != 0)
+ 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
- /* start-sanitize-am33 */
- /* These are properly extended by the code above. */
- && ((operand->flags & MN10300_OPERAND_24BIT) == 0)
- /* end-sanitize-am33 */
- )
- value = ((long)(value << (32 - operand->bits))
- >> (32 - operand->bits));
+ /* These are properly extended by the code above. */
+ && ((operand->flags & MN10300_OPERAND_24BIT) == 0))
+ value = ((value ^ (((unsigned long) 1) << (operand->bits - 1)))
+ - (((unsigned long) 1) << (operand->bits - 1)));
if (!nocomma
&& (!paren
(*info->fprintf_func) (info->stream, ",");
nocomma = 0;
-
+
if ((operand->flags & MN10300_OPERAND_DREG) != 0)
- {
- value = ((insn >> (operand->shift + extra_shift))
- & ((1 << operand->bits) - 1));
- (*info->fprintf_func) (info->stream, "d%d", value);
- }
+ (*info->fprintf_func) (info->stream, "d%d", (int) value);
else if ((operand->flags & MN10300_OPERAND_AREG) != 0)
- {
- value = ((insn >> (operand->shift + extra_shift))
- & ((1 << operand->bits) - 1));
- (*info->fprintf_func) (info->stream, "a%d", value);
- }
+ (*info->fprintf_func) (info->stream, "a%d", (int) value);
else if ((operand->flags & MN10300_OPERAND_SP) != 0)
(*info->fprintf_func) (info->stream, "sp");
else if ((operand->flags & MN10300_OPERAND_MDR) != 0)
(*info->fprintf_func) (info->stream, "mdr");
- /* start-sanitize-am33 */
else if ((operand->flags & MN10300_OPERAND_RREG) != 0)
{
- value = ((insn >> (operand->shift + extra_shift))
- & ((1 << operand->bits) - 1));
- (*info->fprintf_func) (info->stream, "r%d", value);
+ if (value < 8)
+ (*info->fprintf_func) (info->stream, "r%d", (int) value);
+ else if (value < 12)
+ (*info->fprintf_func) (info->stream, "a%d", (int) value - 8);
+ else
+ (*info->fprintf_func) (info->stream, "d%d", (int) value - 12);
}
else if ((operand->flags & MN10300_OPERAND_XRREG) != 0)
{
- value = ((insn >> (operand->shift + extra_shift))
- & ((1 << operand->bits) - 1));
- (*info->fprintf_func) (info->stream, "xr%d", value);
+ if (value == 0)
+ (*info->fprintf_func) (info->stream, "sp");
+ else
+ (*info->fprintf_func) (info->stream, "xr%d", (int) value);
}
+ else if ((operand->flags & MN10300_OPERAND_FSREG) != 0)
+ (*info->fprintf_func) (info->stream, "fs%d", (int) value);
+
+ else if ((operand->flags & MN10300_OPERAND_FDREG) != 0)
+ (*info->fprintf_func) (info->stream, "fd%d", (int) value);
+
+ else if ((operand->flags & MN10300_OPERAND_FPCR) != 0)
+ (*info->fprintf_func) (info->stream, "fpcr");
+
else if ((operand->flags & MN10300_OPERAND_USP) != 0)
(*info->fprintf_func) (info->stream, "usp");
else if ((operand->flags & MN10300_OPERAND_PLUS) != 0)
(*info->fprintf_func) (info->stream, "+");
- /* end-sanitize-am33 */
else if ((operand->flags & MN10300_OPERAND_PAREN) != 0)
{
comma = 1;
}
- /* start-sanitize-am33 */
if (value & 0x04)
{
if (comma)
(*info->fprintf_func) (info->stream, "exother");
comma = 1;
}
- /* end-sanitize-am33 */
(*info->fprintf_func) (info->stream, "]");
}
- else
- (*info->fprintf_func) (info->stream, "%d", value);
+ else
+ (*info->fprintf_func) (info->stream, "%ld", (long) value);
}
/* All done. */
break;
}
if (!match)
+ /* xgettext:c-format */
+ (*info->fprintf_func) (info->stream, _("unknown\t0x%04lx"), 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)
+ {
+ 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)
{
- /* xgettext:c-format */
- (*info->fprintf_func) (info->stream, _("unknown\t0x%04x"), insn);
+ 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;
}
projects / deliverable / binutils-gdb.git / blobdiff