binutils-gdb/opcodes/d10v-dis.c

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/* Disassemble D10V instructions.
Copyright (C) 1996-2015 Free Software Foundation, Inc.
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This file is part of the GNU opcodes library.
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
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the Free Software Foundation; either version 3, or (at your option)
any later version.
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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.
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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. */
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#include "sysdep.h"
PR 14072 * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * sysdep.h: Generate an error if included before config.h. * alpha-opc.c: Include sysdep.h before any other header file. * alpha-dis.c: Likewise. * avr-dis.c: Likewise. * cgen-opc.c: Likewise. * cr16-dis.c: Likewise. * cris-dis.c: Likewise. * crx-dis.c: Likewise. * d10v-dis.c: Likewise. * d10v-opc.c: Likewise. * d30v-dis.c: Likewise. * d30v-opc.c: Likewise. * h8500-dis.c: Likewise. * i370-dis.c: Likewise. * i370-opc.c: Likewise. * m10200-dis.c: Likewise. * m10300-dis.c: Likewise. * micromips-opc.c: Likewise. * mips-opc.c: Likewise. * mips61-opc.c: Likewise. * moxie-dis.c: Likewise. * or32-opc.c: Likewise. * pj-dis.c: Likewise. * ppc-dis.c: Likewise. * ppc-opc.c: Likewise. * s390-dis.c: Likewise. * sh-dis.c: Likewise. * sh64-dis.c: Likewise. * sparc-dis.c: Likewise. * sparc-opc.c: Likewise. * spu-dis.c: Likewise. * tic30-dis.c: Likewise. * tic54x-dis.c: Likewise. * tic80-dis.c: Likewise. * tic80-opc.c: Likewise. * tilegx-dis.c: Likewise. * tilepro-dis.c: Likewise. * v850-dis.c: Likewise. * v850-opc.c: Likewise. * vax-dis.c: Likewise. * w65-dis.c: Likewise. * xgate-dis.c: Likewise. * xtensa-dis.c: Likewise. * rl78-decode.opc: Likewise. * rl78-decode.c: Regenerate. * rx-decode.opc: Likewise. * rx-decode.c: Regenerate. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * sysdep.h: Generate an error if included before config.h. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * aclocal.m4: Regenerate. * bfd-in.h: Generate an error if included before config.h. * sysdep.h: Likewise. * bfd-in2.h: Regenerate. * compress.c: Remove #include "config.h". * plugin.c: Likewise. * elf32-m68hc1x.c: Include sysdep.h before alloca-conf.h. * elf64-hppa.c: Likewise. * som.c: Likewise. * xsymc.c: Likewise. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * aclocal.m4: Regenerate. * Makefile.am: Use wrappers around C files generated by flex. * Makefile.in: Regenerate. * doc/Makefile.in: Regenerate. * itbl-lex-wrapper.c: New file. * config/bfin-lex-wrapper.c: New file. * cgen.c: Include as.h before setjmp.h. * config/tc-dlx.c: Include as.h before any other header. * config/tc-h8300.c: Likewise. * config/tc-lm32.c: Likewise. * config/tc-mep.c: Likewise. * config/tc-microblaze.c: Likewise. * config/tc-mmix.c: Likewise. * config/tc-msp430.c: Likewise. * config/tc-or32.c: Likewise. * config/tc-tic4x.c: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-xtensa.c: Likewise. * configure.in: Add check that sysdep.h has been included before any system header files. * configure: Regenerate. * config.in: Regenerate. * unwind-ia64.h: Include config.h.
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#include <stdio.h>
#include "opcode/d10v.h"
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#include "dis-asm.h"
/* The PC wraps at 18 bits, except for the segment number,
so use this mask to keep the parts we want. */
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#define PC_MASK 0x0303FFFF
static void
print_operand (struct d10v_operand *oper,
unsigned long insn,
struct d10v_opcode *op,
bfd_vma memaddr,
struct disassemble_info *info)
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{
int num, shift;
if (oper->flags == OPERAND_ATMINUS)
{
(*info->fprintf_func) (info->stream, "@-");
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return;
}
if (oper->flags == OPERAND_MINUS)
{
(*info->fprintf_func) (info->stream, "-");
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return;
}
if (oper->flags == OPERAND_PLUS)
{
(*info->fprintf_func) (info->stream, "+");
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return;
}
if (oper->flags == OPERAND_ATSIGN)
{
(*info->fprintf_func) (info->stream, "@");
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return;
}
if (oper->flags == OPERAND_ATPAR)
{
(*info->fprintf_func) (info->stream, "@(");
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return;
}
shift = oper->shift;
/* The LONG_L format shifts registers over by 15. */
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if (op->format == LONG_L && (oper->flags & OPERAND_REG))
shift += 15;
num = (insn >> shift) & (0x7FFFFFFF >> (31 - oper->bits));
if (oper->flags & OPERAND_REG)
{
int i;
int match = 0;
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num += (oper->flags
& (OPERAND_GPR | OPERAND_FFLAG | OPERAND_CFLAG | OPERAND_CONTROL));
if (oper->flags & (OPERAND_ACC0 | OPERAND_ACC1))
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num += num ? OPERAND_ACC1 : OPERAND_ACC0;
for (i = 0; i < d10v_reg_name_cnt (); i++)
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{
if (num == (d10v_predefined_registers[i].value & ~ OPERAND_SP))
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{
if (d10v_predefined_registers[i].pname)
(*info->fprintf_func) (info->stream, "%s",
d10v_predefined_registers[i].pname);
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else
(*info->fprintf_func) (info->stream, "%s",
d10v_predefined_registers[i].name);
match = 1;
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break;
}
}
if (match == 0)
{
/* This would only get executed if a register was not in the
register table. */
if (oper->flags & (OPERAND_ACC0 | OPERAND_ACC1))
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(*info->fprintf_func) (info->stream, "a");
else if (oper->flags & OPERAND_CONTROL)
(*info->fprintf_func) (info->stream, "cr");
else if (oper->flags & OPERAND_REG)
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(*info->fprintf_func) (info->stream, "r");
(*info->fprintf_func) (info->stream, "%d", num & REGISTER_MASK);
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}
}
else
{
/* Addresses are right-shifted by 2. */
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if (oper->flags & OPERAND_ADDR)
{
long max;
int neg = 0;
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max = (1 << (oper->bits - 1));
if (num & max)
{
num = -num & ((1 << oper->bits) - 1);
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neg = 1;
}
num = num << 2;
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if (info->flags & INSN_HAS_RELOC)
(*info->print_address_func) (num & PC_MASK, info);
else
{
if (neg)
(*info->print_address_func) ((memaddr - num) & PC_MASK, info);
else
(*info->print_address_func) ((memaddr + num) & PC_MASK, info);
}
}
else
{
if (oper->flags & OPERAND_SIGNED)
{
int max = (1 << (oper->bits - 1));
if (num & max)
{
num = -num & ((1 << oper->bits) - 1);
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(*info->fprintf_func) (info->stream, "-");
}
}
(*info->fprintf_func) (info->stream, "0x%x", num);
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}
}
}
static void
dis_long (unsigned long insn,
bfd_vma memaddr,
struct disassemble_info *info)
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{
int i;
struct d10v_opcode *op = (struct d10v_opcode *) d10v_opcodes;
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struct d10v_operand *oper;
int need_paren = 0;
int match = 0;
while (op->name)
{
if ((op->format & LONG_OPCODE)
&& ((op->mask & insn) == (unsigned long) op->opcode))
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{
match = 1;
(*info->fprintf_func) (info->stream, "%s\t", op->name);
for (i = 0; op->operands[i]; i++)
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{
oper = (struct d10v_operand *) &d10v_operands[op->operands[i]];
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if (oper->flags == OPERAND_ATPAR)
need_paren = 1;
print_operand (oper, insn, op, memaddr, info);
if (op->operands[i + 1] && oper->bits
&& d10v_operands[op->operands[i + 1]].flags != OPERAND_PLUS
&& d10v_operands[op->operands[i + 1]].flags != OPERAND_MINUS)
(*info->fprintf_func) (info->stream, ", ");
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}
break;
}
op++;
}
if (!match)
(*info->fprintf_func) (info->stream, ".long\t0x%08lx", insn);
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if (need_paren)
(*info->fprintf_func) (info->stream, ")");
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}
static void
dis_2_short (unsigned long insn,
bfd_vma memaddr,
struct disassemble_info *info,
int order)
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{
int i, j;
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unsigned int ins[2];
struct d10v_opcode *op;
int match, num_match = 0;
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struct d10v_operand *oper;
int need_paren = 0;
ins[0] = (insn & 0x3FFFFFFF) >> 15;
ins[1] = insn & 0x00007FFF;
for (j = 0; j < 2; j++)
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{
op = (struct d10v_opcode *) d10v_opcodes;
match = 0;
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while (op->name)
{
if ((op->format & SHORT_OPCODE)
&& ((((unsigned int) op->mask) & ins[j])
== (unsigned int) op->opcode))
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{
(*info->fprintf_func) (info->stream, "%s\t", op->name);
for (i = 0; op->operands[i]; i++)
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{
oper = (struct d10v_operand *) &d10v_operands[op->operands[i]];
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if (oper->flags == OPERAND_ATPAR)
need_paren = 1;
print_operand (oper, ins[j], op, memaddr, info);
if (op->operands[i + 1] && oper->bits
&& d10v_operands[op->operands[i + 1]].flags != OPERAND_PLUS
&& d10v_operands[op->operands[i + 1]].flags != OPERAND_MINUS)
(*info->fprintf_func) (info->stream, ", ");
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}
match = 1;
num_match++;
break;
}
op++;
}
if (!match)
(*info->fprintf_func) (info->stream, "unknown");
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switch (order)
{
case 0:
(*info->fprintf_func) (info->stream, "\t->\t");
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order = -1;
break;
case 1:
(*info->fprintf_func) (info->stream, "\t<-\t");
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order = -1;
break;
case 2:
(*info->fprintf_func) (info->stream, "\t||\t");
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order = -1;
break;
default:
break;
}
}
if (num_match == 0)
(*info->fprintf_func) (info->stream, ".long\t0x%08lx", insn);
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if (need_paren)
(*info->fprintf_func) (info->stream, ")");
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}
int
print_insn_d10v (bfd_vma memaddr, struct disassemble_info *info)
{
int status;
bfd_byte buffer[4];
unsigned long 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);
status = insn & FM11;
switch (status)
{
case 0:
dis_2_short (insn, memaddr, info, 2);
break;
case FM01:
dis_2_short (insn, memaddr, info, 0);
break;
case FM10:
dis_2_short (insn, memaddr, info, 1);
break;
case FM11:
dis_long (insn, memaddr, info);
break;
}
return 4;
}