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author | Andrew Hsieh <andrewhsieh@google.com> | 2014-06-13 12:38:00 -0700 |
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committer | Andrew Hsieh <andrewhsieh@google.com> | 2014-06-13 12:38:00 -0700 |
commit | 54f1b3cf509cd889905287cb8ce6c5ae33911a21 (patch) | |
tree | e39b1a7fa04db86a8215b7f9d4656d74e394aec0 /binutils-2.25/opcodes/m10200-dis.c | |
parent | 2a6558a8ecfb81d75215b4ec7dc61113e12cfd5f (diff) | |
download | toolchain_binutils-54f1b3cf509cd889905287cb8ce6c5ae33911a21.tar.gz toolchain_binutils-54f1b3cf509cd889905287cb8ce6c5ae33911a21.tar.bz2 toolchain_binutils-54f1b3cf509cd889905287cb8ce6c5ae33911a21.zip |
Add upstream binutils-2.25 snapshot 4/4 2014
For MIPS -mmsa support
Change-Id: I08c4f002fa7b33dec85ed75956e6ab551bb03c96
Diffstat (limited to 'binutils-2.25/opcodes/m10200-dis.c')
-rw-r--r-- | binutils-2.25/opcodes/m10200-dis.c | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/binutils-2.25/opcodes/m10200-dis.c b/binutils-2.25/opcodes/m10200-dis.c new file mode 100644 index 00000000..3d2dd837 --- /dev/null +++ b/binutils-2.25/opcodes/m10200-dis.c @@ -0,0 +1,335 @@ +/* Disassemble MN10200 instructions. + Copyright 1996, 1997, 1998, 2000, 2005, 2007, 2012 + Free Software Foundation, Inc. + + 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 + the Free Software Foundation; either version 3, or (at your option) + any later version. + + 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 "opcode/mn10200.h" +#include "dis-asm.h" +#include "opintl.h" + +static void +disassemble (bfd_vma memaddr, + struct disassemble_info *info, + unsigned long insn, + unsigned long extension, + unsigned int size) +{ + struct mn10200_opcode *op = (struct mn10200_opcode *)mn10200_opcodes; + const struct mn10200_operand *operand; + int match = 0; + + /* Find the opcode. */ + while (op->name) + { + int mysize, extra_shift; + + if (op->format == FMT_1) + mysize = 1; + else if (op->format == FMT_2 + || op->format == FMT_4) + mysize = 2; + else if (op->format == FMT_3 + || op->format == FMT_5) + mysize = 3; + else if (op->format == FMT_6) + mysize = 4; + else if (op->format == FMT_7) + mysize = 5; + else + abort (); + + if (op->format == FMT_2 || op->format == FMT_5) + extra_shift = 8; + else if (op->format == FMT_3 + || op->format == FMT_6 + || op->format == FMT_7) + extra_shift = 16; + else + extra_shift = 0; + + if ((op->mask & insn) == op->opcode + && size == (unsigned int) mysize) + { + const unsigned char *opindex_ptr; + unsigned int nocomma; + int paren = 0; + + match = 1; + (*info->fprintf_func) (info->stream, "%s\t", op->name); + + /* Now print the operands. */ + for (opindex_ptr = op->operands, nocomma = 1; + *opindex_ptr != 0; + opindex_ptr++) + { + unsigned long value; + + operand = &mn10200_operands[*opindex_ptr]; + + if ((operand->flags & MN10200_OPERAND_EXTENDED) != 0) + { + value = (insn & 0xffff) << 8; + value |= extension; + } + else + { + value = ((insn >> (operand->shift)) + & ((1L << operand->bits) - 1L)); + } + + if ((operand->flags & MN10200_OPERAND_SIGNED) != 0) + value = ((long)(value << (32 - operand->bits)) + >> (32 - operand->bits)); + + if (!nocomma + && (!paren + || ((operand->flags & MN10200_OPERAND_PAREN) == 0))) + (*info->fprintf_func) (info->stream, ","); + + nocomma = 0; + + if ((operand->flags & MN10200_OPERAND_DREG) != 0) + { + value = ((insn >> (operand->shift + extra_shift)) + & ((1 << operand->bits) - 1)); + (*info->fprintf_func) (info->stream, "d%ld", value); + } + + else if ((operand->flags & MN10200_OPERAND_AREG) != 0) + { + value = ((insn >> (operand->shift + extra_shift)) + & ((1 << operand->bits) - 1)); + (*info->fprintf_func) (info->stream, "a%ld", value); + } + + else if ((operand->flags & MN10200_OPERAND_PSW) != 0) + (*info->fprintf_func) (info->stream, "psw"); + + else if ((operand->flags & MN10200_OPERAND_MDR) != 0) + (*info->fprintf_func) (info->stream, "mdr"); + + else if ((operand->flags & MN10200_OPERAND_PAREN) != 0) + { + if (paren) + (*info->fprintf_func) (info->stream, ")"); + else + { + (*info->fprintf_func) (info->stream, "("); + nocomma = 1; + } + paren = !paren; + } + + else if ((operand->flags & MN10200_OPERAND_PCREL) != 0) + (*info->print_address_func) + ((value + memaddr + mysize) & 0xffffff, info); + + else if ((operand->flags & MN10200_OPERAND_MEMADDR) != 0) + (*info->print_address_func) (value, info); + + else + (*info->fprintf_func) (info->stream, "%ld", value); + } + /* All done. */ + break; + } + op++; + } + + if (!match) + (*info->fprintf_func) (info->stream, _("unknown\t0x%04lx"), insn); +} + +int +print_insn_mn10200 (bfd_vma memaddr, struct disassemble_info *info) +{ + int status; + bfd_byte buffer[4]; + unsigned long insn; + unsigned long extension = 0; + 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 & 0xf0) == 0x00 + || (insn & 0xf0) == 0x10 + || (insn & 0xf0) == 0x20 + || (insn & 0xf0) == 0x30 + || ((insn & 0xf0) == 0x80 + && (insn & 0x0c) >> 2 != (insn & 0x03)) + || (insn & 0xf0) == 0x90 + || (insn & 0xf0) == 0xa0 + || (insn & 0xf0) == 0xb0 + || (insn & 0xff) == 0xeb + || (insn & 0xff) == 0xf6 + || (insn & 0xff) == 0xfe + || (insn & 0xff) == 0xff) + { + extension = 0; + consume = 1; + } + + /* These are two byte insns. */ + else if ((insn & 0xf0) == 0x40 + || (insn & 0xf0) == 0x50 + || (insn & 0xf0) == 0x60 + || (insn & 0xf0) == 0x70 + || (insn & 0xf0) == 0x80 + || (insn & 0xfc) == 0xd0 + || (insn & 0xfc) == 0xd4 + || (insn & 0xfc) == 0xd8 + || (insn & 0xfc) == 0xe0 + || (insn & 0xfc) == 0xe4 + || (insn & 0xff) == 0xe8 + || (insn & 0xff) == 0xe9 + || (insn & 0xff) == 0xea + || (insn & 0xff) == 0xf0 + || (insn & 0xff) == 0xf1 + || (insn & 0xff) == 0xf2 + || (insn & 0xff) == 0xf3) + { + 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 with a 16bit operand in little + endian form. */ + else if ((insn & 0xf0) == 0xc0 + || (insn & 0xfc) == 0xdc + || (insn & 0xfc) == 0xec + || (insn & 0xff) == 0xf8 + || (insn & 0xff) == 0xf9 + || (insn & 0xff) == 0xfa + || (insn & 0xff) == 0xfb + || (insn & 0xff) == 0xfc + || (insn & 0xff) == 0xfd) + { + status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info); + if (status != 0) + { + (*info->memory_error_func) (status, memaddr, info); + return -1; + } + insn <<= 16; + insn |= bfd_getl16 (buffer); + extension = 0; + consume = 3; + } + /* These are three byte insns too, but we don't have to mess with + endianness stuff. */ + else if ((insn & 0xff) == 0xf5) + { + status = (*info->read_memory_func) (memaddr + 1, buffer, 2, info); + if (status != 0) + { + (*info->memory_error_func) (status, memaddr, info); + return -1; + } + insn <<= 16; + insn |= bfd_getb16 (buffer); + extension = 0; + consume = 3; + } + + /* These are four byte insns. */ + else if ((insn & 0xff) == 0xf7) + { + 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 <<= 16; + status = (*info->read_memory_func) (memaddr + 2, buffer, 2, info); + if (status != 0) + { + (*info->memory_error_func) (status, memaddr, info); + return -1; + } + insn |= bfd_getl16 (buffer); + extension = 0; + consume = 4; + } + + /* These are five byte insns. */ + else if ((insn & 0xff) == 0xf4) + { + 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 <<= 16; + + status = (*info->read_memory_func) (memaddr + 4, buffer, 1, info); + if (status != 0) + { + (*info->memory_error_func) (status, memaddr, info); + return -1; + } + insn |= (*(unsigned char *)buffer << 8) & 0xff00; + + status = (*info->read_memory_func) (memaddr + 3, buffer, 1, info); + if (status != 0) + { + (*info->memory_error_func) (status, memaddr, info); + return -1; + } + insn |= (*(unsigned char *)buffer) & 0xff; + + status = (*info->read_memory_func) (memaddr + 2, buffer, 1, info); + if (status != 0) + { + (*info->memory_error_func) (status, memaddr, info); + return -1; + } + extension = (*(unsigned char *)buffer) & 0xff; + consume = 5; + } + else + { + (*info->fprintf_func) (info->stream, _("unknown\t0x%02lx"), insn); + return 1; + } + + disassemble (memaddr, info, insn, extension, consume); + + return consume; +} |