/* Disassemble V850 instructions.
- Copyright 1996, 1997, 1998, 2000, 2001 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 <stdio.h>
#include "sysdep.h"
-#include "opcode/v850.h"
-#include "dis-asm.h"
+#include <stdio.h>
+#include <string.h>
+#include "opcode/v850.h"
+#include "disassemble.h"
#include "opintl.h"
+#include "libiberty.h"
+
+static const int v850_cacheop_codes[] =
+{
+ 0x00, 0x20, 0x40, 0x60, 0x61, 0x04, 0x06,
+ 0x07, 0x24, 0x26, 0x27, 0x44, 0x64, 0x65, -1
+};
+
+static const int v850_prefop_codes[] =
+{ 0x00, 0x04, -1};
+
+static void
+print_value (int flags,
+ bfd_vma memaddr,
+ struct disassemble_info *info,
+ long value)
+{
+ if (flags & V850_PCREL)
+ {
+ bfd_vma addr = value + memaddr;
+
+ if (flags & V850_INVERSE_PCREL)
+ addr = memaddr - value;
+ info->print_address_func (addr, info);
+ }
+ else if (flags & V850_OPERAND_DISP)
+ {
+ if (flags & V850_OPERAND_SIGNED)
+ {
+ info->fprintf_func (info->stream, "%ld", value);
+ }
+ else
+ {
+ info->fprintf_func (info->stream, "%lu", value);
+ }
+ }
+ else if ((flags & V850E_IMMEDIATE32)
+ || (flags & V850E_IMMEDIATE16HI))
+ {
+ info->fprintf_func (info->stream, "0x%lx", value);
+ }
+ else
+ {
+ if (flags & V850_OPERAND_SIGNED)
+ {
+ info->fprintf_func (info->stream, "%ld", value);
+ }
+ else
+ {
+ info->fprintf_func (info->stream, "%lu", value);
+ }
+ }
+}
+
+static long
+get_operand_value (const struct v850_operand *operand,
+ unsigned long insn,
+ int bytes_read,
+ bfd_vma memaddr,
+ struct disassemble_info * info,
+ bfd_boolean noerror,
+ int *invalid)
+{
+ unsigned long value;
+ bfd_byte buffer[4];
+
+ if ((operand->flags & V850E_IMMEDIATE16)
+ || (operand->flags & V850E_IMMEDIATE16HI))
+ {
+ int status = info->read_memory_func (memaddr + bytes_read, buffer, 2, info);
+
+ if (status == 0)
+ {
+ value = bfd_getl16 (buffer);
+
+ if (operand->flags & V850E_IMMEDIATE16HI)
+ value <<= 16;
+ else if (value & 0x8000)
+ value |= (-1UL << 16);
+
+ return value;
+ }
+
+ if (!noerror)
+ info->memory_error_func (status, memaddr + bytes_read, info);
+
+ return 0;
+ }
+
+ if (operand->flags & V850E_IMMEDIATE23)
+ {
+ int status = info->read_memory_func (memaddr + 2, buffer, 4, info);
+
+ if (status == 0)
+ {
+ value = bfd_getl32 (buffer);
+
+ value = (operand->extract) (value, invalid);
+
+ return value;
+ }
+
+ if (!noerror)
+ info->memory_error_func (status, memaddr + bytes_read, info);
+
+ return 0;
+ }
+
+ if (operand->flags & V850E_IMMEDIATE32)
+ {
+ int status = info->read_memory_func (memaddr + bytes_read, buffer, 4, info);
+
+ if (status == 0)
+ {
+ bytes_read += 4;
+ value = bfd_getl32 (buffer);
+
+ return value;
+ }
+
+ if (!noerror)
+ info->memory_error_func (status, memaddr + bytes_read, info);
+
+ return 0;
+ }
+
+ if (operand->extract)
+ value = (operand->extract) (insn, invalid);
+ else
+ {
+ if (operand->bits == -1)
+ value = (insn & operand->shift);
+ else
+ value = (insn >> operand->shift) & ((1ul << operand->bits) - 1);
+
+ if (operand->flags & V850_OPERAND_SIGNED)
+ {
+ unsigned long sign = 1ul << (operand->bits - 1);
+ value = (value ^ sign) - sign;
+ }
+ }
+
+ return value;
+}
+
+static const char *
+get_v850_sreg_name (unsigned int reg)
+{
+ static const char *const v850_sreg_names[] =
+ {
+ "eipc/vip/mpm", "eipsw/mpc", "fepc/tid", "fepsw/ppa", "ecr/vmecr", "psw/vmtid",
+ "sr6/fpsr/vmadr/dcc", "sr7/fpepc/dc0",
+ "sr8/fpst/vpecr/dcv1", "sr9/fpcc/vptid", "sr10/fpcfg/vpadr/spal", "sr11/spau",
+ "sr12/vdecr/ipa0l", "eiic/vdtid/ipa0u", "feic/ipa1l", "dbic/ipa1u",
+ "ctpc/ipa2l", "ctpsw/ipa2u", "dbpc/ipa3l", "dbpsw/ipa3u", "ctbp/dpa0l",
+ "dir/dpa0u", "bpc/dpa0u", "asid/dpa1l",
+ "bpav/dpa1u", "bpam/dpa2l", "bpdv/dpa2u", "bpdm/dpa3l", "eiwr/dpa3u",
+ "fewr", "dbwr", "bsel"
+ };
+
+ if (reg < ARRAY_SIZE (v850_sreg_names))
+ return v850_sreg_names[reg];
+ return _("<invalid s-reg number>");
+}
+
+static const char *
+get_v850_reg_name (unsigned int reg)
+{
+ static const char *const v850_reg_names[] =
+ {
+ "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+ "r24", "r25", "r26", "r27", "r28", "r29", "ep", "lp"
+ };
+
+ if (reg < ARRAY_SIZE (v850_reg_names))
+ return v850_reg_names[reg];
+ return _("<invalid reg number>");
+}
+
+static const char *
+get_v850_vreg_name (unsigned int reg)
+{
+ static const char *const v850_vreg_names[] =
+ {
+ "vr0", "vr1", "vr2", "vr3", "vr4", "vr5", "vr6", "vr7", "vr8", "vr9",
+ "vr10", "vr11", "vr12", "vr13", "vr14", "vr15", "vr16", "vr17", "vr18",
+ "vr19", "vr20", "vr21", "vr22", "vr23", "vr24", "vr25", "vr26", "vr27",
+ "vr28", "vr29", "vr30", "vr31"
+ };
+
+ if (reg < ARRAY_SIZE (v850_vreg_names))
+ return v850_vreg_names[reg];
+ return _("<invalid v-reg number>");
+}
+
+static const char *
+get_v850_cc_name (unsigned int reg)
+{
+ static const char *const v850_cc_names[] =
+ {
+ "v", "c/l", "z", "nh", "s/n", "t", "lt", "le",
+ "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt"
+ };
-static const char *const v850_reg_names[] =
-{ "r0", "r1", "r2", "sp", "gp", "r5", "r6", "r7",
- "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
- "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
- "r24", "r25", "r26", "r27", "r28", "r29", "ep", "lp" };
+ if (reg < ARRAY_SIZE (v850_cc_names))
+ return v850_cc_names[reg];
+ return _("<invalid CC-reg number>");
+}
+
+static const char *
+get_v850_float_cc_name (unsigned int reg)
+{
+ static const char *const v850_float_cc_names[] =
+ {
+ "f/t", "un/or", "eq/neq", "ueq/ogl", "olt/uge", "ult/oge", "ole/ugt", "ule/ogt",
+ "sf/st", "ngle/gle", "seq/sne", "ngl/gl", "lt/nlt", "nge/ge", "le/nle", "ngt/gt"
+ };
+
+ if (reg < ARRAY_SIZE (v850_float_cc_names))
+ return v850_float_cc_names[reg];
+ return _("<invalid float-CC-reg number>");
+}
+
+static const char *
+get_v850_cacheop_name (unsigned int reg)
+{
+ static const char *const v850_cacheop_names[] =
+ {
+ "chbii", "cibii", "cfali", "cisti", "cildi", "chbid", "chbiwbd",
+ "chbwbd", "cibid", "cibiwbd", "cibwbd", "cfald", "cistd", "cildd"
+ };
-static const char *const v850_sreg_names[] =
-{ "eipc", "eipsw", "fepc", "fepsw", "ecr", "psw", "sr6", "sr7",
- "sr8", "sr9", "sr10", "sr11", "sr12", "sr13", "sr14", "sr15",
- "ctpc", "ctpsw", "dbpc", "dbpsw", "ctbp", "sr21", "sr22", "sr23",
- "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31",
- "sr16", "sr17", "sr18", "sr19", "sr20", "sr21", "sr22", "sr23",
- "sr24", "sr25", "sr26", "sr27", "sr28", "sr29", "sr30", "sr31" };
+ if (reg < ARRAY_SIZE (v850_cacheop_names))
+ return v850_cacheop_names[reg];
+ return _("<invalid cacheop number>");
+}
-static const char *const v850_cc_names[] =
-{ "v", "c/l", "z", "nh", "s/n", "t", "lt", "le",
- "nv", "nc/nl", "nz", "h", "ns/p", "sa", "ge", "gt" };
+static const char *
+get_v850_prefop_name (unsigned int reg)
+{
+ static const char *const v850_prefop_names[] =
+ { "prefi", "prefd" };
-static int disassemble
- PARAMS ((bfd_vma, struct disassemble_info *, unsigned long));
+ if (reg < ARRAY_SIZE (v850_prefop_names))
+ return v850_prefop_names[reg];
+ return _("<invalid prefop number>");
+}
static int
-disassemble (memaddr, info, insn)
- bfd_vma memaddr;
- struct disassemble_info *info;
- unsigned long insn;
+disassemble (bfd_vma memaddr,
+ struct disassemble_info *info,
+ int bytes_read,
+ unsigned long insn)
{
- struct v850_opcode * op = (struct v850_opcode *)v850_opcodes;
- const struct v850_operand * operand;
- int match = 0;
- int short_op = ((insn & 0x0600) != 0x0600);
- int bytes_read;
- int target_processor;
-
- /* Special case: 32 bit MOV */
- if ((insn & 0xffe0) == 0x0620)
- short_op = true;
-
- bytes_read = short_op ? 2 : 4;
-
- /* If this is a two byte insn, then mask off the high bits. */
- if (short_op)
- insn &= 0xffff;
+ struct v850_opcode *op = (struct v850_opcode *) v850_opcodes;
+ const struct v850_operand *operand;
+ int match = 0;
+ int target_processor;
switch (info->mach)
{
target_processor = PROCESSOR_V850E;
break;
- case bfd_mach_v850ea:
- target_processor = PROCESSOR_V850EA;
+ case bfd_mach_v850e1:
+ target_processor = PROCESSOR_V850E;
+ break;
+
+ case bfd_mach_v850e2:
+ target_processor = PROCESSOR_V850E2;
+ break;
+
+ case bfd_mach_v850e2v3:
+ target_processor = PROCESSOR_V850E2V3;
+ break;
+
+ case bfd_mach_v850e3v5:
+ target_processor = PROCESSOR_V850E3V5;
break;
}
-
+
+ /* If this is a two byte insn, then mask off the high bits. */
+ if (bytes_read == 2)
+ insn &= 0xffff;
+
/* Find the opcode. */
while (op->name)
{
if ((op->mask & insn) == op->opcode
- && (op->processors & target_processor))
+ && (op->processors & target_processor)
+ && !(op->processors & PROCESSOR_OPTION_ALIAS))
{
- const unsigned char * opindex_ptr;
- unsigned int opnum;
- unsigned int memop;
+ /* Code check start. */
+ const unsigned char *opindex_ptr;
+ unsigned int opnum;
+ unsigned int memop;
+
+ for (opindex_ptr = op->operands, opnum = 1;
+ *opindex_ptr != 0;
+ opindex_ptr++, opnum++)
+ {
+ int invalid = 0;
+ long value;
+
+ operand = &v850_operands[*opindex_ptr];
+
+ value = get_operand_value (operand, insn, bytes_read, memaddr,
+ info, 1, &invalid);
+
+ if (invalid)
+ goto next_opcode;
+
+ if ((operand->flags & V850_NOT_R0) && value == 0 && (op->memop) <=2)
+ goto next_opcode;
+
+ if ((operand->flags & V850_NOT_SA) && value == 0xd)
+ goto next_opcode;
+
+ if ((operand->flags & V850_NOT_IMM0) && value == 0)
+ goto next_opcode;
+ }
+
+ /* Code check end. */
match = 1;
(*info->fprintf_func) (info->stream, "%s\t", op->name);
-/*fprintf (stderr, "match: mask: %x insn: %x, opcode: %x, name: %s\n", op->mask, insn, op->opcode, op->name );*/
+#if 0
+ fprintf (stderr, "match: insn: %lx, mask: %lx, opcode: %lx, name: %s\n",
+ insn, op->mask, op->opcode, op->name );
+#endif
memop = op->memop;
/* Now print the operands.
insert commas into the output stream as well as
when to insert disp[reg] expressions onto the
output stream. */
-
+
for (opindex_ptr = op->operands, opnum = 1;
*opindex_ptr != 0;
opindex_ptr++, opnum++)
{
- long value;
- int flag;
- int status;
- bfd_byte buffer[ 4 ];
-
+ bfd_boolean square = FALSE;
+ long value;
+ int flag;
+ char *prefix;
+
operand = &v850_operands[*opindex_ptr];
-
- if (operand->extract)
- value = (operand->extract) (insn, 0);
- else
- {
- if (operand->bits == -1)
- value = (insn & operand->shift);
- else
- value = (insn >> operand->shift) & ((1 << operand->bits) - 1);
-
- if (operand->flags & V850_OPERAND_SIGNED)
- value = ((long)(value << (32 - operand->bits))
- >> (32 - operand->bits));
- }
+
+ value = get_operand_value (operand, insn, bytes_read, memaddr,
+ info, 0, 0);
/* The first operand is always output without any
special handling.
Else we just need a comma.
We may need to output a trailing ']' if the last operand
- in an instruction is the register for a memory address.
+ in an instruction is the register for a memory address.
- The exception (and there's always an exception) is the
+ The exception (and there's always an exception) are the
"jmp" insn which needs square brackets around it's only
- register argument. */
-
- if (memop && opnum == memop + 1) info->fprintf_func (info->stream, "[");
- else if (memop && opnum == memop + 2) info->fprintf_func (info->stream, "],");
- else if (memop == 1 && opnum == 1
- && (operand->flags & V850_OPERAND_REG))
- info->fprintf_func (info->stream, "[");
- else if (opnum > 1) info->fprintf_func (info->stream, ", ");
-
- /* extract the flags, ignorng ones which do not effect disassembly output. */
- flag = operand->flags;
- flag &= ~ V850_OPERAND_SIGNED;
- flag &= ~ V850_OPERAND_RELAX;
- flag &= - flag;
-
+ register argument, and the clr1/not1/set1/tst1 insns
+ which [...] around their second register argument. */
+
+ prefix = "";
+ if (operand->flags & V850_OPERAND_BANG)
+ {
+ prefix = "!";
+ }
+ else if (operand->flags & V850_OPERAND_PERCENT)
+ {
+ prefix = "%";
+ }
+
+ if (opnum == 1 && opnum == memop)
+ {
+ info->fprintf_func (info->stream, "%s[", prefix);
+ square = TRUE;
+ }
+ else if ( (strcmp ("stc.w", op->name) == 0
+ || strcmp ("cache", op->name) == 0
+ || strcmp ("pref", op->name) == 0)
+ && opnum == 2 && opnum == memop)
+ {
+ info->fprintf_func (info->stream, ", [");
+ square = TRUE;
+ }
+ else if ( (strcmp (op->name, "pushsp") == 0
+ || strcmp (op->name, "popsp") == 0
+ || strcmp (op->name, "dbpush" ) == 0)
+ && opnum == 2)
+ {
+ info->fprintf_func (info->stream, "-");
+ }
+ else if (opnum > 1
+ && (v850_operands[*(opindex_ptr - 1)].flags
+ & V850_OPERAND_DISP) != 0
+ && opnum == memop)
+ {
+ info->fprintf_func (info->stream, "%s[", prefix);
+ square = TRUE;
+ }
+ else if (opnum == 2
+ && ( op->opcode == 0x00e407e0 /* clr1 */
+ || op->opcode == 0x00e207e0 /* not1 */
+ || op->opcode == 0x00e007e0 /* set1 */
+ || op->opcode == 0x00e607e0 /* tst1 */
+ ))
+ {
+ info->fprintf_func (info->stream, ", %s[", prefix);
+ square = TRUE;
+ }
+ else if (opnum > 1)
+ info->fprintf_func (info->stream, ", %s", prefix);
+
+ /* Extract the flags, ignoring ones which do not
+ effect disassembly output. */
+ flag = operand->flags & (V850_OPERAND_REG
+ | V850_REG_EVEN
+ | V850_OPERAND_EP
+ | V850_OPERAND_SRG
+ | V850E_OPERAND_REG_LIST
+ | V850_OPERAND_CC
+ | V850_OPERAND_VREG
+ | V850_OPERAND_CACHEOP
+ | V850_OPERAND_PREFOP
+ | V850_OPERAND_FLOAT_CC);
+
switch (flag)
{
- case V850_OPERAND_REG: info->fprintf_func (info->stream, "%s", v850_reg_names[value]); break;
- case V850_OPERAND_SRG: info->fprintf_func (info->stream, "%s", v850_sreg_names[value]); break;
- case V850_OPERAND_CC: info->fprintf_func (info->stream, "%s", v850_cc_names[value]); break;
- case V850_OPERAND_EP: info->fprintf_func (info->stream, "ep"); break;
- default: info->fprintf_func (info->stream, "%d", value); break;
- case V850_OPERAND_DISP:
- {
- bfd_vma addr = value + memaddr;
-
- /* On the v850 the top 8 bits of an address are used by an overlay manager.
- Thus it may happen that when we are looking for a symbol to match
- against an address with some of its top bits set, the search fails to
- turn up an exact match. In this case we try to find an exact match
- against a symbol in the lower address space, and if we find one, we
- use that address. We only do this for JARL instructions however, as
- we do not want to misinterpret branch instructions. */
- if (operand->bits == 22)
- {
- if ( ! info->symbol_at_address_func (addr, info)
- && ((addr & 0xFF000000) != 0)
- && info->symbol_at_address_func (addr & 0x00FFFFFF, info))
- {
- addr &= 0x00FFFFFF;
- }
- }
- info->print_address_func (addr, info);
- break;
- }
-
- case V850E_PUSH_POP:
+ case V850_OPERAND_REG:
+ info->fprintf_func (info->stream, "%s", get_v850_reg_name (value));
+ break;
+ case (V850_OPERAND_REG|V850_REG_EVEN):
+ info->fprintf_func (info->stream, "%s", get_v850_reg_name (value * 2));
+ break;
+ case V850_OPERAND_EP:
+ info->fprintf_func (info->stream, "ep");
+ break;
+ case V850_OPERAND_SRG:
+ info->fprintf_func (info->stream, "%s", get_v850_sreg_name (value));
+ break;
+ case V850E_OPERAND_REG_LIST:
{
- static int list12_regs[32] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
- static int list18_h_regs[32] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
- static int list18_l_regs[32] = { 3, 2, 1, -2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 };
- int * regs;
- int i;
- unsigned long int mask = 0;
- int pc = false;
- int sr = false;
-
-
+ static int list12_regs[32] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
+ int *regs;
+ int i;
+ unsigned int mask = 0;
+ int pc = 0;
+
switch (operand->shift)
{
case 0xffe00001: regs = list12_regs; break;
- case 0xfff8000f: regs = list18_h_regs; break;
- case 0xfff8001f: regs = list18_l_regs; value &= ~0x10; break; /* Do not include magic bit */
default:
/* xgettext:c-format */
- fprintf (stderr, _("unknown operand shift: %x\n"), operand->shift );
- abort();
+ opcodes_error_handler (_("unknown operand shift: %x"),
+ operand->shift);
+ abort ();
}
for (i = 0; i < 32; i++)
{
- if (value & (1 << i))
+ if (value & (1u << i))
{
switch (regs[ i ])
{
- default: mask |= (1 << regs[ i ]); break;
+ default:
+ mask |= (1u << regs[ i ]);
+ break;
+ case 0:
/* xgettext:c-format */
- case 0: fprintf (stderr, _("unknown pop reg: %d\n"), i ); abort();
- case -1: pc = true; break;
- case -2: sr = true; break;
+ opcodes_error_handler (_("unknown reg: %d"), i);
+ abort ();
+ break;
+ case -1:
+ pc = 1;
+ break;
}
}
}
info->fprintf_func (info->stream, "{");
-
- if (mask || pc || sr)
+
+ if (mask || pc)
{
if (mask)
{
unsigned int bit;
- int shown_one = false;
-
+ int shown_one = 0;
+
for (bit = 0; bit < 32; bit++)
- if (mask & (1 << bit))
+ if (mask & (1u << bit))
{
- unsigned long int first = bit;
- unsigned long int last;
+ unsigned int first = bit;
+ unsigned int last;
if (shown_one)
info->fprintf_func (info->stream, ", ");
else
- shown_one = true;
-
- info->fprintf_func (info->stream, v850_reg_names[first]);
-
+ shown_one = 1;
+
+ info->fprintf_func (info->stream, "%s", get_v850_reg_name (first));
+
for (bit++; bit < 32; bit++)
- if ((mask & (1 << bit)) == 0)
+ if ((mask & (1u << bit)) == 0)
break;
last = bit;
if (last > first + 1)
{
- info->fprintf_func (info->stream, " - %s", v850_reg_names[ last - 1 ]);
+ info->fprintf_func (info->stream, " - %s", get_v850_reg_name (last - 1));
}
}
}
-
+
if (pc)
info->fprintf_func (info->stream, "%sPC", mask ? ", " : "");
- if (sr)
- info->fprintf_func (info->stream, "%sSR", (mask || pc) ? ", " : "");
}
-
+
info->fprintf_func (info->stream, "}");
}
- break;
-
- case V850E_IMMEDIATE16:
- status = info->read_memory_func (memaddr + bytes_read, buffer, 2, info);
- if (status == 0)
- {
- bytes_read += 2;
- value = bfd_getl16 (buffer);
-
- /* If this is a DISPOSE instruction with ff set to 0x10, then shift value up by 16. */
- if ((insn & 0x001fffc0) == 0x00130780)
- value <<= 16;
-
- info->fprintf_func (info->stream, "0x%x", value);
- }
- else
- {
- info->memory_error_func (status, memaddr + bytes_read, info);
- }
break;
-
- case V850E_IMMEDIATE32:
- status = info->read_memory_func (memaddr + bytes_read, buffer, 4, info);
- if (status == 0)
- {
- bytes_read += 4;
- value = bfd_getl32 (buffer);
- info->fprintf_func (info->stream, "0x%lx", value);
- }
- else
- {
- info->memory_error_func (status, memaddr + bytes_read, info);
- }
+
+ case V850_OPERAND_CC:
+ info->fprintf_func (info->stream, "%s", get_v850_cc_name (value));
break;
- }
- /* Handle jmp correctly. */
- if (memop == 1 && opnum == 1
- && ((operand->flags & V850_OPERAND_REG) != 0))
+ case V850_OPERAND_FLOAT_CC:
+ info->fprintf_func (info->stream, "%s", get_v850_float_cc_name (value));
+ break;
+
+ case V850_OPERAND_CACHEOP:
+ {
+ int idx;
+
+ for (idx = 0; v850_cacheop_codes[idx] != -1; idx++)
+ {
+ if (value == v850_cacheop_codes[idx])
+ {
+ info->fprintf_func (info->stream, "%s",
+ get_v850_cacheop_name (idx));
+ goto MATCH_CACHEOP_CODE;
+ }
+ }
+ info->fprintf_func (info->stream, "%d", (int) value);
+ }
+ MATCH_CACHEOP_CODE:
+ break;
+
+ case V850_OPERAND_PREFOP:
+ {
+ int idx;
+
+ for (idx = 0; v850_prefop_codes[idx] != -1; idx++)
+ {
+ if (value == v850_prefop_codes[idx])
+ {
+ info->fprintf_func (info->stream, "%s",
+ get_v850_prefop_name (idx));
+ goto MATCH_PREFOP_CODE;
+ }
+ }
+ info->fprintf_func (info->stream, "%d", (int) value);
+ }
+ MATCH_PREFOP_CODE:
+ break;
+
+ case V850_OPERAND_VREG:
+ info->fprintf_func (info->stream, "%s", get_v850_vreg_name (value));
+ break;
+
+ default:
+ print_value (operand->flags, memaddr, info, value);
+ break;
+ }
+
+ if (square)
(*info->fprintf_func) (info->stream, "]");
}
- /* Close any square bracket we left open. */
- if (memop && opnum == memop + 2)
- (*info->fprintf_func) (info->stream, "]");
-
/* All done. */
break;
}
+ next_opcode:
op++;
}
- if (!match)
- {
- if (short_op)
- info->fprintf_func (info->stream, ".short\t0x%04x", insn);
- else
- info->fprintf_func (info->stream, ".long\t0x%08x", insn);
- }
-
- return bytes_read;
+ return match;
}
-int
-print_insn_v850 (memaddr, info)
- bfd_vma memaddr;
- struct disassemble_info * info;
+int
+print_insn_v850 (bfd_vma memaddr, struct disassemble_info * info)
{
- int status;
- bfd_byte buffer[ 4 ];
- unsigned long insn = 0;
+ int status, status2, match;
+ bfd_byte buffer[8];
+ int length = 0, code_length = 0;
+ unsigned long insn = 0, insn2 = 0;
+ int target_processor;
+
+ switch (info->mach)
+ {
+ case 0:
+ default:
+ target_processor = PROCESSOR_V850;
+ break;
+
+ case bfd_mach_v850e:
+ target_processor = PROCESSOR_V850E;
+ break;
+
+ case bfd_mach_v850e1:
+ target_processor = PROCESSOR_V850E;
+ break;
+
+ case bfd_mach_v850e2:
+ target_processor = PROCESSOR_V850E2;
+ break;
+
+ case bfd_mach_v850e2v3:
+ target_processor = PROCESSOR_V850E2V3;
+ break;
+
+ case bfd_mach_v850e3v5:
+ target_processor = PROCESSOR_V850E3V5;
+ break;
+ }
- /* First figure out how big the opcode is. */
-
status = info->read_memory_func (memaddr, buffer, 2, info);
- if (status == 0)
+
+ if (status)
+ {
+ info->memory_error_func (status, memaddr, info);
+ return -1;
+ }
+
+ insn = bfd_getl16 (buffer);
+
+ status2 = info->read_memory_func (memaddr+2, buffer, 2 , info);
+
+ if (!status2)
+ {
+ insn2 = bfd_getl16 (buffer);
+ /* fprintf (stderr, "insn2 0x%08lx\n", insn2); */
+ }
+
+ /* Special case. */
+ if (length == 0
+ && ((target_processor & PROCESSOR_V850E2_UP) != 0))
+ {
+ if ((insn & 0xffff) == 0x02e0 /* jr 32bit */
+ && !status2 && (insn2 & 0x1) == 0)
+ {
+ length = 2;
+ code_length = 6;
+ }
+ else if ((insn & 0xffe0) == 0x02e0 /* jarl 32bit */
+ && !status2 && (insn2 & 0x1) == 0)
+ {
+ length = 2;
+ code_length = 6;
+ }
+ else if ((insn & 0xffe0) == 0x06e0 /* jmp 32bit */
+ && !status2 && (insn2 & 0x1) == 0)
+ {
+ length = 2;
+ code_length = 6;
+ }
+ }
+
+ if (length == 0
+ && ((target_processor & PROCESSOR_V850E3V5_UP) != 0))
{
- insn = bfd_getl16 (buffer);
-
- if ( (insn & 0x0600) == 0x0600
- && (insn & 0xffe0) != 0x0620)
+ if ( ((insn & 0xffe0) == 0x07a0 /* ld.dw 23bit (v850e3v5) */
+ && !status2 && (insn2 & 0x000f) == 0x0009)
+ || ((insn & 0xffe0) == 0x07a0 /* st.dw 23bit (v850e3v5) */
+ && !status2 && (insn2 & 0x000f) == 0x000f))
{
- /* If this is a 4 byte insn, read 4 bytes of stuff. */
- status = info->read_memory_func (memaddr, buffer, 4, info);
+ length = 4;
+ code_length = 6;
+ }
+ }
- if (status == 0)
- insn = bfd_getl32 (buffer);
+ if (length == 0
+ && ((target_processor & PROCESSOR_V850E2V3_UP) != 0))
+ {
+ if (((insn & 0xffe0) == 0x0780 /* ld.b 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x0005)
+ || ((insn & 0xffe0) == 0x07a0 /* ld.bu 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x0005)
+ || ((insn & 0xffe0) == 0x0780 /* ld.h 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x0007)
+ || ((insn & 0xffe0) == 0x07a0 /* ld.hu 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x0007)
+ || ((insn & 0xffe0) == 0x0780 /* ld.w 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x0009))
+ {
+ length = 4;
+ code_length = 6;
+ }
+ else if (((insn & 0xffe0) == 0x0780 /* st.b 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x000d)
+ || ((insn & 0xffe0) == 0x07a0 /* st.h 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x000d)
+ || ((insn & 0xffe0) == 0x0780 /* st.w 23bit */
+ && !status2 && (insn2 & 0x000f) == 0x000f))
+ {
+ length = 4;
+ code_length = 6;
}
}
-
- if (status != 0)
+
+ if (length == 0
+ && target_processor != PROCESSOR_V850)
{
- info->memory_error_func (status, memaddr, info);
- return -1;
+ if ((insn & 0xffe0) == 0x0620) /* 32 bit MOV */
+ {
+ length = 2;
+ code_length = 6;
+ }
+ else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16<<16 */
+ && !status2 && (insn2 & 0x001f) == 0x0013)
+ {
+ length = 4;
+ code_length = 6;
+ }
+ else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm16 */
+ && !status2 && (insn2 & 0x001f) == 0x000b)
+ {
+ length = 4;
+ code_length = 6;
+ }
+ else if ((insn & 0xffc0) == 0x0780 /* prepare {list}, imm5, imm32 */
+ && !status2 && (insn2 & 0x001f) == 0x001b)
+ {
+ length = 4;
+ code_length = 8;
+ }
+ }
+
+ if (length == 4
+ || (length == 0
+ && (insn & 0x0600) == 0x0600))
+ {
+ /* This is a 4 byte insn. */
+ status = info->read_memory_func (memaddr, buffer, 4, info);
+ if (!status)
+ {
+ insn = bfd_getl32 (buffer);
+
+ if (!length)
+ length = code_length = 4;
+ }
+ }
+
+ if (code_length > length)
+ {
+ status = info->read_memory_func (memaddr + length, buffer, code_length - length, info);
+ if (status)
+ length = 0;
+ }
+
+ if (length == 0 && !status)
+ length = code_length = 2;
+
+ if (length == 2)
+ insn &= 0xffff;
+
+ /* when the last 2 bytes of section is 0xffff, length will be 0 and cause infinitive loop */
+ if (length == 0)
+ return -1;
+
+ match = disassemble (memaddr, info, length, insn);
+
+ if (!match)
+ {
+ int l = 0;
+
+ status = info->read_memory_func (memaddr, buffer, code_length, info);
+
+ while (l < code_length)
+ {
+ if (code_length - l == 2)
+ {
+ insn = bfd_getl16 (buffer + l) & 0xffff;
+ info->fprintf_func (info->stream, ".short\t0x%04lx", insn);
+ l += 2;
+ }
+ else
+ {
+ insn = bfd_getl32 (buffer + l);
+ info->fprintf_func (info->stream, ".long\t0x%08lx", insn);
+ l += 4;
+ }
+ }
}
- /* Make sure we tell our caller how many bytes we consumed. */
- return disassemble (memaddr, info, insn);
+ return code_length;
}
projects / thirdparty / binutils-gdb.git / blobdiff