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df7b86aa4c
* 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.
762 lines
20 KiB
C
762 lines
20 KiB
C
/* Disassemble MN10300 instructions.
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005, 2007, 2012
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Free Software Foundation, Inc.
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This file is part of the GNU opcodes library.
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This library is free software; you can redistribute it and/or modify
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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)
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any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include <stdio.h>
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#include "opcode/mn10300.h"
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#include "dis-asm.h"
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#include "opintl.h"
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#define HAVE_AM33_2 (info->mach == AM33_2)
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#define HAVE_AM33 (info->mach == AM33 || HAVE_AM33_2)
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#define HAVE_AM30 (info->mach == AM30)
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static void
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disassemble (bfd_vma memaddr,
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struct disassemble_info *info,
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unsigned long insn,
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unsigned int size)
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{
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struct mn10300_opcode *op = (struct mn10300_opcode *) mn10300_opcodes;
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const struct mn10300_operand *operand;
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bfd_byte buffer[4];
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unsigned long extension = 0;
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int status, match = 0;
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/* Find the opcode. */
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while (op->name)
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{
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int mysize, extra_shift;
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if (op->format == FMT_S0)
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mysize = 1;
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else if (op->format == FMT_S1
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|| op->format == FMT_D0)
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mysize = 2;
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else if (op->format == FMT_S2
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|| op->format == FMT_D1)
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mysize = 3;
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else if (op->format == FMT_S4)
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mysize = 5;
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else if (op->format == FMT_D2)
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mysize = 4;
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else if (op->format == FMT_D3)
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mysize = 5;
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else if (op->format == FMT_D4)
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mysize = 6;
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else if (op->format == FMT_D6)
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mysize = 3;
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else if (op->format == FMT_D7 || op->format == FMT_D10)
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mysize = 4;
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else if (op->format == FMT_D8)
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mysize = 6;
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else if (op->format == FMT_D9)
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mysize = 7;
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else
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mysize = 7;
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if ((op->mask & insn) == op->opcode
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&& size == (unsigned int) mysize
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&& (op->machine == 0
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|| (op->machine == AM33_2 && HAVE_AM33_2)
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|| (op->machine == AM33 && HAVE_AM33)
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|| (op->machine == AM30 && HAVE_AM30)))
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{
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const unsigned char *opindex_ptr;
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unsigned int nocomma;
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int paren = 0;
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if (op->format == FMT_D1 || op->format == FMT_S1)
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extra_shift = 8;
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else if (op->format == FMT_D2 || op->format == FMT_D4
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|| op->format == FMT_S2 || op->format == FMT_S4
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|| op->format == FMT_S6 || op->format == FMT_D5)
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extra_shift = 16;
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else if (op->format == FMT_D7
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|| op->format == FMT_D8
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|| op->format == FMT_D9)
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extra_shift = 8;
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else
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extra_shift = 0;
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if (size == 1 || size == 2)
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extension = 0;
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else if (size == 3
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&& (op->format == FMT_D1
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|| op->opcode == 0xdf0000
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|| op->opcode == 0xde0000))
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extension = 0;
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else if (size == 3
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&& op->format == FMT_D6)
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extension = 0;
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else if (size == 3)
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{
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insn &= 0xff0000;
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status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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insn |= bfd_getl16 (buffer);
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extension = 0;
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}
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else if (size == 4
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&& (op->opcode == 0xfaf80000
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|| op->opcode == 0xfaf00000
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|| op->opcode == 0xfaf40000))
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extension = 0;
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else if (size == 4
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&& (op->format == FMT_D7
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|| op->format == FMT_D10))
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extension = 0;
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else if (size == 4)
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{
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insn &= 0xffff0000;
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status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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insn |= bfd_getl16 (buffer);
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extension = 0;
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}
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else if (size == 5 && op->opcode == 0xdc000000)
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{
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unsigned long temp = 0;
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status = (*info->read_memory_func) (memaddr + 1, buffer, 4, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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temp |= bfd_getl32 (buffer);
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insn &= 0xff000000;
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insn |= (temp & 0xffffff00) >> 8;
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extension = temp & 0xff;
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}
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else if (size == 5 && op->format == FMT_D3)
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{
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status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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insn &= 0xffff0000;
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insn |= bfd_getl16 (buffer);
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status = (*info->read_memory_func) (memaddr + 4, buffer, 1, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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extension = *(unsigned char *) buffer;
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}
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else if (size == 5)
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{
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unsigned long temp = 0;
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status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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temp |= bfd_getl16 (buffer);
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insn &= 0xff0000ff;
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insn |= temp << 8;
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status = (*info->read_memory_func) (memaddr + 4, buffer, 1, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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extension = *(unsigned char *) buffer;
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}
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else if (size == 6 && op->format == FMT_D8)
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{
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insn &= 0xffffff00;
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status = (*info->read_memory_func) (memaddr + 5, buffer, 1, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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insn |= *(unsigned char *) buffer;
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status = (*info->read_memory_func) (memaddr + 3, buffer, 2, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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extension = bfd_getl16 (buffer);
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}
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else if (size == 6)
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{
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unsigned long temp = 0;
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status = (*info->read_memory_func) (memaddr + 2, buffer, 4, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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temp |= bfd_getl32 (buffer);
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insn &= 0xffff0000;
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insn |= (temp >> 16) & 0xffff;
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extension = temp & 0xffff;
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}
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else if (size == 7 && op->format == FMT_D9)
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{
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insn &= 0xffffff00;
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status = (*info->read_memory_func) (memaddr + 3, buffer, 4, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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extension = bfd_getl32 (buffer);
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insn |= (extension & 0xff000000) >> 24;
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extension &= 0xffffff;
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}
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else if (size == 7 && op->opcode == 0xdd000000)
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{
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unsigned long temp = 0;
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status = (*info->read_memory_func) (memaddr + 1, buffer, 4, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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temp |= bfd_getl32 (buffer);
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insn &= 0xff000000;
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insn |= (temp >> 8) & 0xffffff;
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extension = (temp & 0xff) << 16;
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status = (*info->read_memory_func) (memaddr + 5, buffer, 2, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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extension |= bfd_getb16 (buffer);
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}
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else if (size == 7)
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{
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unsigned long temp = 0;
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status = (*info->read_memory_func) (memaddr + 2, buffer, 4, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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temp |= bfd_getl32 (buffer);
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insn &= 0xffff0000;
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insn |= (temp >> 16) & 0xffff;
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extension = (temp & 0xffff) << 8;
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status = (*info->read_memory_func) (memaddr + 6, buffer, 1, info);
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if (status != 0)
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{
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(*info->memory_error_func) (status, memaddr, info);
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return;
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}
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extension |= *(unsigned char *) buffer;
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}
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match = 1;
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(*info->fprintf_func) (info->stream, "%s\t", op->name);
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/* Now print the operands. */
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for (opindex_ptr = op->operands, nocomma = 1;
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*opindex_ptr != 0;
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opindex_ptr++)
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{
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unsigned long value;
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operand = &mn10300_operands[*opindex_ptr];
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/* If this operand is a PLUS (autoincrement), then do not emit
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a comma before emitting the plus. */
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if ((operand->flags & MN10300_OPERAND_PLUS) != 0)
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nocomma = 1;
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if ((operand->flags & MN10300_OPERAND_SPLIT) != 0)
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{
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unsigned long temp;
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value = insn & ((1 << operand->bits) - 1);
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value <<= (32 - operand->bits);
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temp = extension >> operand->shift;
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temp &= ((1 << (32 - operand->bits)) - 1);
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value |= temp;
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value = ((value ^ (((unsigned long) 1) << 31))
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- (((unsigned long) 1) << 31));
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}
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else if ((operand->flags & MN10300_OPERAND_24BIT) != 0)
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{
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unsigned long temp;
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value = insn & ((1 << operand->bits) - 1);
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value <<= (24 - operand->bits);
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temp = extension >> operand->shift;
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temp &= ((1 << (24 - operand->bits)) - 1);
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value |= temp;
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if ((operand->flags & MN10300_OPERAND_SIGNED) != 0)
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value = ((value & 0xffffff) ^ 0x800000) - 0x800000;
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}
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else if ((operand->flags & (MN10300_OPERAND_FSREG
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| MN10300_OPERAND_FDREG)))
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{
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/* See m10300-opc.c just before #define FSM0 for an
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explanation of these variables. Note that
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FMT-implied shifts are not taken into account for
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FP registers. */
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unsigned long mask_low, mask_high;
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int shl_low, shr_high, shl_high;
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switch (operand->bits)
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{
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case 5:
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/* Handle regular FP registers. */
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if (operand->shift >= 0)
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{
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/* This is an `m' register. */
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shl_low = operand->shift;
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shl_high = 8 + (8 & shl_low) + (shl_low & 4) / 4;
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}
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else
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{
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/* This is an `n' register. */
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shl_low = -operand->shift;
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shl_high = shl_low / 4;
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}
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mask_low = 0x0f;
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mask_high = 0x10;
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shr_high = 4;
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break;
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case 3:
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/* Handle accumulators. */
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shl_low = -operand->shift;
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shl_high = 0;
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mask_low = 0x03;
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mask_high = 0x04;
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shr_high = 2;
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break;
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default:
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abort ();
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}
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value = ((((insn >> shl_high) << shr_high) & mask_high)
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| ((insn >> shl_low) & mask_low));
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}
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else if ((operand->flags & MN10300_OPERAND_EXTENDED) != 0)
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value = ((extension >> (operand->shift))
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& ((1 << operand->bits) - 1));
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else
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value = ((insn >> (operand->shift))
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& ((1 << operand->bits) - 1));
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if ((operand->flags & MN10300_OPERAND_SIGNED) != 0
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/* These are properly extended by the code above. */
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&& ((operand->flags & MN10300_OPERAND_24BIT) == 0))
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value = ((value ^ (((unsigned long) 1) << (operand->bits - 1)))
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- (((unsigned long) 1) << (operand->bits - 1)));
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if (!nocomma
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&& (!paren
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|| ((operand->flags & MN10300_OPERAND_PAREN) == 0)))
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(*info->fprintf_func) (info->stream, ",");
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nocomma = 0;
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if ((operand->flags & MN10300_OPERAND_DREG) != 0)
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{
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value = ((insn >> (operand->shift + extra_shift))
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& ((1 << operand->bits) - 1));
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(*info->fprintf_func) (info->stream, "d%d", (int) value);
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}
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else if ((operand->flags & MN10300_OPERAND_AREG) != 0)
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{
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value = ((insn >> (operand->shift + extra_shift))
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& ((1 << operand->bits) - 1));
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(*info->fprintf_func) (info->stream, "a%d", (int) value);
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}
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else if ((operand->flags & MN10300_OPERAND_SP) != 0)
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(*info->fprintf_func) (info->stream, "sp");
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else if ((operand->flags & MN10300_OPERAND_PSW) != 0)
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(*info->fprintf_func) (info->stream, "psw");
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else if ((operand->flags & MN10300_OPERAND_MDR) != 0)
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(*info->fprintf_func) (info->stream, "mdr");
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else if ((operand->flags & MN10300_OPERAND_RREG) != 0)
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{
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value = ((insn >> (operand->shift + extra_shift))
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& ((1 << operand->bits) - 1));
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if (value < 8)
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(*info->fprintf_func) (info->stream, "r%d", (int) value);
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else if (value < 12)
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(*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));
|
|
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_SSP) != 0)
|
|
(*info->fprintf_func) (info->stream, "ssp");
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_MSP) != 0)
|
|
(*info->fprintf_func) (info->stream, "msp");
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_PC) != 0)
|
|
(*info->fprintf_func) (info->stream, "pc");
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_EPSW) != 0)
|
|
(*info->fprintf_func) (info->stream, "epsw");
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_PLUS) != 0)
|
|
(*info->fprintf_func) (info->stream, "+");
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_PAREN) != 0)
|
|
{
|
|
if (paren)
|
|
(*info->fprintf_func) (info->stream, ")");
|
|
else
|
|
{
|
|
(*info->fprintf_func) (info->stream, "(");
|
|
nocomma = 1;
|
|
}
|
|
paren = !paren;
|
|
}
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_PCREL) != 0)
|
|
(*info->print_address_func) ((long) value + memaddr, info);
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_MEMADDR) != 0)
|
|
(*info->print_address_func) (value, info);
|
|
|
|
else if ((operand->flags & MN10300_OPERAND_REG_LIST) != 0)
|
|
{
|
|
int comma = 0;
|
|
|
|
(*info->fprintf_func) (info->stream, "[");
|
|
if (value & 0x80)
|
|
{
|
|
(*info->fprintf_func) (info->stream, "d2");
|
|
comma = 1;
|
|
}
|
|
|
|
if (value & 0x40)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "d3");
|
|
comma = 1;
|
|
}
|
|
|
|
if (value & 0x20)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "a2");
|
|
comma = 1;
|
|
}
|
|
|
|
if (value & 0x10)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "a3");
|
|
comma = 1;
|
|
}
|
|
|
|
if (value & 0x08)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "other");
|
|
comma = 1;
|
|
}
|
|
|
|
if (value & 0x04)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "exreg0");
|
|
comma = 1;
|
|
}
|
|
if (value & 0x02)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "exreg1");
|
|
comma = 1;
|
|
}
|
|
if (value & 0x01)
|
|
{
|
|
if (comma)
|
|
(*info->fprintf_func) (info->stream, ",");
|
|
(*info->fprintf_func) (info->stream, "exother");
|
|
comma = 1;
|
|
}
|
|
(*info->fprintf_func) (info->stream, "]");
|
|
}
|
|
|
|
else
|
|
(*info->fprintf_func) (info->stream, "%ld", (long) value);
|
|
}
|
|
/* All done. */
|
|
break;
|
|
}
|
|
op++;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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;
|
|
}
|